Merge 5.0-rc6 into char-misc-next

We need the char-misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <[e-mail]>

Documentation/ABI/stable/sysfs-driver-mlxreg-io

···
 							cpld3_version
 
 Date:		November 2018
-KernelVersion:	4.21
+KernelVersion:	5.0
 Contact:	Vadim Pasternak <vadimpmellanox.com>
 Description:	These files show with which CPLD versions have been burned
 		on LED board.
···
 							jtag_enable
 
 Date:		November 2018
-KernelVersion:	4.21
+KernelVersion:	5.0
 Contact:	Vadim Pasternak <vadimpmellanox.com>
 Description:	These files enable and disable the access to the JTAG domain.
 		By default access to the JTAG domain is disabled.
···
 						reset_voltmon_upgrade_fail
 
 Date:		November 2018
-KernelVersion:	4.21
+KernelVersion:	5.0
 Contact:	Vadim Pasternak <vadimpmellanox.com>
 Description:	These files show the system reset cause, as following: ComEx
 		power fail, reset from ComEx, system platform reset, reset

Documentation/admin-guide/kernel-parameters.txt

···
 			By default, super page will be supported if Intel IOMMU
 			has the capability. With this option, super page will
 			not be supported.
-		sm_off [Default Off]
-			By default, scalable mode will be supported if the
+		sm_on [Default Off]
+			By default, scalable mode will be disabled even if the
 			hardware advertises that it has support for the scalable
 			mode translation. With this option set, scalable mode
-			will not be used even on hardware which claims to support
-			it.
+			will be used on hardware which claims to support it.
 		tboot_noforce [Default Off]
 			Do not force the Intel IOMMU enabled under tboot.
 			By default, tboot will force Intel IOMMU on, which

Documentation/devicetree/bindings/Makefile

···
 quiet_cmd_mk_schema = SCHEMA  $@
       cmd_mk_schema = $(DT_MK_SCHEMA) $(DT_MK_SCHEMA_FLAGS) -o $@ $(filter-out FORCE, $^)
 
-DT_DOCS = $(shell cd $(srctree)/$(src) && find * -name '*.yaml')
+DT_DOCS = $(shell \
+	cd $(srctree)/$(src) && \
+	find * \( -name '*.yaml' ! -name $(DT_TMP_SCHEMA) \) \
+	)
+
 DT_SCHEMA_FILES ?= $(addprefix $(src)/,$(DT_DOCS))
 
 extra-y += $(patsubst $(src)/%.yaml,%.example.dts, $(DT_SCHEMA_FILES))

Documentation/devicetree/bindings/serio/olpc,ap-sp.txt

···
 - compatible : "olpc,ap-sp"
 - reg : base address and length of SoC's WTM registers
 - interrupts : SP-AP interrupt
-- clocks : phandle + clock-specifier for the clock that drives the WTM
-- clock-names:  should be "sp"
 
 Example:
 	ap-sp@d4290000 {
 		compatible = "olpc,ap-sp";
 		reg = <0xd4290000 0x1000>;
 		interrupts = <40>;
-		clocks = <&soc_clocks MMP2_CLK_SP>;
-		clock-names = "sp";
 	}

Documentation/sysctl/fs.txt

···
 
 dentry-state:
 
-From linux/fs/dentry.c:
+From linux/include/linux/dcache.h:
 --------------------------------------------------------------
-struct {
+struct dentry_stat_t dentry_stat {
         int nr_dentry;
         int nr_unused;
         int age_limit;         /* age in seconds */
         int want_pages;        /* pages requested by system */
-        int dummy[2];
-} dentry_stat = {0, 0, 45, 0,};
--------------------------------------------------------------- 
+        int nr_negative;       /* # of unused negative dentries */
+        int dummy;             /* Reserved for future use */
+};
+--------------------------------------------------------------
 
-Dentries are dynamically allocated and deallocated, and
-nr_dentry seems to be 0 all the time. Hence it's safe to
-assume that only nr_unused, age_limit and want_pages are
-used. Nr_unused seems to be exactly what its name says.
+Dentries are dynamically allocated and deallocated.
+
+nr_dentry shows the total number of dentries allocated (active
++ unused). nr_unused shows the number of dentries that are not
+actively used, but are saved in the LRU list for future reuse.
+
 Age_limit is the age in seconds after which dcache entries
 can be reclaimed when memory is short and want_pages is
 nonzero when shrink_dcache_pages() has been called and the
 dcache isn't pruned yet.
+
+nr_negative shows the number of unused dentries that are also
+negative dentries which do not mapped to actual files.
 
 ==============================================================
 

Documentation/x86/resctrl_ui.txt

···
 Tony Luck <[e-mail]>
 Vikas Shivappa <[e-mail]>
 
-This feature is enabled by the CONFIG_X86_RESCTRL and the x86 /proc/cpuinfo
+This feature is enabled by the CONFIG_X86_CPU_RESCTRL and the x86 /proc/cpuinfo
 flag bits:
 RDT (Resource Director Technology) Allocation - "rdt_a"
 CAT (Cache Allocation Technology) - "cat_l3", "cat_l2"

MAINTAINERS

···
 BPF (Safe dynamic programs and tools)
 M:	Alexei Starovoitov <[e-mail]>
 M:	Daniel Borkmann <[e-mail]>
+R:	Martin KaFai Lau <[e-mail]>
+R:	Song Liu <[e-mail]>
+R:	Yonghong Song <[e-mail]>
 L:	[e-mail]
 L:	[e-mail]
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
···
 F:	tools/bpf/
 F:	tools/lib/bpf/
 F:	tools/testing/selftests/bpf/
+K:	bpf
+N:	bpf
 
 BPF JIT for ARM
 M:	Shubham Bansal <[e-mail]>
···
 M:	Oleksandr Andrushchenko <[e-mail]>
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 L:	[e-mail]
-L:	[e-mail]
+L:	[e-mail] (moderated for non-subscribers)
 S:	Supported
 F:	drivers/gpu/drm/xen/
 F:	Documentation/gpu/xen-front.rst
···
 
 OPENCORES I2C BUS DRIVER
 M:	Peter Korsgaard <[e-mail]>
+M:	Andrew Lunn <[e-mail]>
 L:	[e-mail]
 S:	Maintained
 F:	Documentation/i2c/busses/i2c-ocores
 F:	drivers/i2c/busses/i2c-ocores.c
+F:	include/linux/platform_data/i2c-ocores.h
 
 OPENRISC ARCHITECTURE
 M:	Jonas Bonn <[e-mail]>
···
 F:	drivers/net/dsa/realtek-smi*
 F:	drivers/net/dsa/rtl83*
 
+REDPINE WIRELESS DRIVER
+M:	Amitkumar Karwar <[e-mail]>
+M:	Siva Rebbagondla <[e-mail]>
+L:	[e-mail]
+S:	Maintained
+F:	drivers/net/wireless/rsi/
+
 REGISTER MAP ABSTRACTION
 M:	Mark Brown <[e-mail]>
 L:	[e-mail]
···
 L:	[e-mail]
 S:	Supported
 F:	drivers/net/ethernet/sfc/
+
+SFF/SFP/SFP+ MODULE SUPPORT
+M:	Russell King <[e-mail]>
+L:	[e-mail]
+S:	Maintained
+F:	drivers/net/phy/phylink.c
+F:	drivers/net/phy/sfp*
+F:	include/linux/phylink.h
+F:	include/linux/sfp.h
 
 SGI GRU DRIVER
 M:	Dimitri Sivanich <[e-mail]>
···
 F:	drivers/platform/x86/
 F:	drivers/platform/olpc/
 
+X86 PLATFORM DRIVERS - ARCH
+R:	Darren Hart <[e-mail]>
+R:	Andy Shevchenko <[e-mail]>
+L:	[e-mail]
+L:	[e-mail]
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
+S:	Maintained
+F:	arch/x86/platform
+
 X86 VDSO
 M:	Andy Lutomirski <[e-mail]>
 L:	[e-mail]
···
 T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
 F:	drivers/media/tuners/tuner-xc2028.*
+
+XDP (eXpress Data Path)
+M:	Alexei Starovoitov <[e-mail]>
+M:	Daniel Borkmann <[e-mail]>
+M:	David S. Miller <[e-mail]>
+M:	Jakub Kicinski <[e-mail]>
+M:	Jesper Dangaard Brouer <[e-mail]>
+M:	John Fastabend <[e-mail]>
+L:	[e-mail]
+L:	[e-mail]
+S:	Supported
+F:	net/core/xdp.c
+F:	include/net/xdp.h
+F:	kernel/bpf/devmap.c
+F:	kernel/bpf/cpumap.c
+F:	include/trace/events/xdp.h
+K:	xdp
+N:	xdp
 
 XDP SOCKETS (AF_XDP)
 M:	Björn Töpel <[e-mail]>

Makefile

···
 VERSION = 5
 PATCHLEVEL = 0
 SUBLEVEL = 0
-EXTRAVERSION = -rc4
+EXTRAVERSION = -rc6
 NAME = Shy Crocodile
 
 # *DOCUMENTATION*

arch/arm/boot/dts/am335x-shc.dts

···
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc1_pins>;
 	bus-width = <0x4>;
-	cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
+	cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
 	cd-inverted;
 	max-frequency = <26000000>;
 	vmmc-supply = <&vmmcsd_fixed>;

arch/arm/boot/dts/da850.dtsi

···
 		clocksource: timer@20000 {
 			compatible = "ti,da830-timer";
 			reg = <0x20000 0x1000>;
-			interrupts = <12>, <13>;
+			interrupts = <21>, <22>;
 			interrupt-names = "tint12", "tint34";
 			clocks = <&pll0_auxclk>;
 		};

arch/arm/boot/dts/imx6q-pistachio.dts

···
 		power {
 			label = "Power Button";
 			gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
-			gpio-key,wakeup;
+			wakeup-source;
 			linux,code = <KEY_POWER>;
 		};
 	};

arch/arm/boot/dts/imx6sll-evk.dts

···
 	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
 	cd-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>;
 	keep-power-in-suspend;
-	enable-sdio-wakeup;
+	wakeup-source;
 	vmmc-supply = <&reg_sd3_vmmc>;
 	status = "okay";
 };

arch/arm/boot/dts/imx6sx.dtsi

···
 			};
 
 			gpt: gpt@2098000 {
-				compatible = "fsl,imx6sx-gpt", "fsl,imx31-gpt";
+				compatible = "fsl,imx6sx-gpt", "fsl,imx6dl-gpt";
 				reg = <0x02098000 0x4000>;
 				interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks IMX6SX_CLK_GPT_BUS>,

arch/arm/boot/dts/meson.dtsi

···
 			compatible = "amlogic,meson6-dwmac", "snps,dwmac";
 			reg = <0xc9410000 0x10000
 			       0xc1108108 0x4>;
-			interrupts = <GIC_SPI 8 IRQ_TYPE_EDGE_RISING>;
+			interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "macirq";
 			status = "disabled";
 		};

arch/arm/boot/dts/meson8b-ec100.dts

···
 		cap-sd-highspeed;
 		disable-wp;
 
-		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-		cd-inverted;
+		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 		vmmc-supply = <&vcc_3v3>;
 	};

arch/arm/boot/dts/meson8b-odroidc1.dts

···
 		/* Realtek RTL8211F (0x001cc916) */
 		eth_phy: ethernet-phy@0 {
 			reg = <0>;
-			eee-broken-1000t;
 			interrupt-parent = <&gpio_intc>;
 			/* GPIOH_3 */
 			interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
···
 		cap-sd-highspeed;
 		disable-wp;
 
-		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-		cd-inverted;
+		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 		vmmc-supply = <&tflash_vdd>;
 		vqmmc-supply = <&tf_io>;

arch/arm/boot/dts/meson8m2-mxiii-plus.dts

···
 		cap-sd-highspeed;
 		disable-wp;
 
-		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-		cd-inverted;
+		cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 		vmmc-supply = <&vcc_3v3>;
 	};

arch/arm/boot/dts/motorola-cpcap-mapphone.dtsi

···
 			interrupts-extended = <
 				&cpcap 15 0 &cpcap 14 0 &cpcap 28 0 &cpcap 19 0
 				&cpcap 18 0 &cpcap 17 0 &cpcap 16 0 &cpcap 49 0
-				&cpcap 48 1
+				&cpcap 48 0
 			>;
 			interrupt-names =
 				"id_ground", "id_float", "se0conn", "vbusvld",

arch/arm/boot/dts/omap3-gta04.dtsi

···
 
 	vdda-supply = <&vdac>;
 
-	#address-cells = <1>;
-	#size-cells = <0>;
-
 	port {
-		reg = <0>;
 		venc_out: endpoint {
 			remote-endpoint = <&opa_in>;
 			ti,channels = <1>;

arch/arm/boot/dts/omap3-n900.dts

···
 	/* For debugging, it is often good idea to remove this GPIO.
 	   It means you can remove back cover (to reboot by removing
 	   battery) and still use the MMC card. */
-	cd-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>; /* 160 */
+	cd-gpios = <&gpio6 0 GPIO_ACTIVE_LOW>; /* 160 */
 };
 
 /* most boards use vaux3, only some old versions use vmmc2 instead */

arch/arm/boot/dts/omap3-n950-n9.dtsi

···
 		compatible = "ti,omap2-onenand";
 		reg = <0 0 0x20000>;	/* CS0, offset 0, IO size 128K */
 
+		/*
+		 * These timings are based on CONFIG_OMAP_GPMC_DEBUG=y reported
+		 * bootloader set values when booted with v4.19 using both N950
+		 * and N9 devices (OneNAND Manufacturer: Samsung):
+		 *
+		 *   gpmc cs0 before gpmc_cs_program_settings:
+		 *   cs0 GPMC_CS_CONFIG1: 0xfd001202
+		 *   cs0 GPMC_CS_CONFIG2: 0x00181800
+		 *   cs0 GPMC_CS_CONFIG3: 0x00030300
+		 *   cs0 GPMC_CS_CONFIG4: 0x18001804
+		 *   cs0 GPMC_CS_CONFIG5: 0x03171d1d
+		 *   cs0 GPMC_CS_CONFIG6: 0x97080000
+		 */
 		gpmc,sync-read;
 		gpmc,sync-write;
 		gpmc,burst-length = <16>;
···
 		gpmc,device-width = <2>;
 		gpmc,mux-add-data = <2>;
 		gpmc,cs-on-ns = <0>;
-		gpmc,cs-rd-off-ns = <87>;
-		gpmc,cs-wr-off-ns = <87>;
+		gpmc,cs-rd-off-ns = <122>;
+		gpmc,cs-wr-off-ns = <122>;
 		gpmc,adv-on-ns = <0>;
-		gpmc,adv-rd-off-ns = <10>;
-		gpmc,adv-wr-off-ns = <10>;
-		gpmc,oe-on-ns = <15>;
-		gpmc,oe-off-ns = <87>;
+		gpmc,adv-rd-off-ns = <15>;
+		gpmc,adv-wr-off-ns = <15>;
+		gpmc,oe-on-ns = <20>;
+		gpmc,oe-off-ns = <122>;
 		gpmc,we-on-ns = <0>;
-		gpmc,we-off-ns = <87>;
-		gpmc,rd-cycle-ns = <112>;
-		gpmc,wr-cycle-ns = <112>;
-		gpmc,access-ns = <81>;
+		gpmc,we-off-ns = <122>;
+		gpmc,rd-cycle-ns = <148>;
+		gpmc,wr-cycle-ns = <148>;
+		gpmc,access-ns = <117>;
 		gpmc,page-burst-access-ns = <15>;
 		gpmc,bus-turnaround-ns = <0>;
 		gpmc,cycle2cycle-delay-ns = <0>;
 		gpmc,wait-monitoring-ns = <0>;
-		gpmc,clk-activation-ns = <5>;
-		gpmc,wr-data-mux-bus-ns = <30>;
-		gpmc,wr-access-ns = <81>;
-		gpmc,sync-clk-ps = <15000>;
+		gpmc,clk-activation-ns = <10>;
+		gpmc,wr-data-mux-bus-ns = <40>;
+		gpmc,wr-access-ns = <117>;
+
+		gpmc,sync-clk-ps = <15000>; /* TBC; Where this value came? */
 
 		/*
 		 * MTD partition table corresponding to Nokia's MeeGo 1.2

arch/arm/boot/dts/omap5-l4.dtsi

···
 					<SYSC_IDLE_SMART>,
 					<SYSC_IDLE_SMART_WKUP>;
 			ti,syss-mask = <1>;
-			ti,no-reset-on-init;
-			ti,no-idle-on-init;
 			/* Domains (V, P, C): core, core_pwrdm, l4per_clkdm */
 			clocks = <&l4per_clkctrl OMAP5_UART3_CLKCTRL 0>;
 			clock-names = "fck";

arch/arm/boot/dts/r8a7743.dtsi

···
 
 		du: display@feb00000 {
 			compatible = "renesas,du-r8a7743";
-			reg = <0 0xfeb00000 0 0x40000>,
-			      <0 0xfeb90000 0 0x1c>;
-			reg-names = "du", "lvds.0";
+			reg = <0 0xfeb00000 0 0x40000>;
 			interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 724>,
-				 <&cpg CPG_MOD 723>,
-				 <&cpg CPG_MOD 726>;
-			clock-names = "du.0", "du.1", "lvds.0";
+				 <&cpg CPG_MOD 723>;
+			clock-names = "du.0", "du.1";
 			status = "disabled";
 
 			ports {
···
 				port@1 {
 					reg = <1>;
 					du_out_lvds0: endpoint {
+						remote-endpoint = <&lvds0_in>;
+					};
+				};
+			};
+		};
+
+		lvds0: lvds@feb90000 {
+			compatible = "renesas,r8a7743-lvds";
+			reg = <0 0xfeb90000 0 0x1c>;
+			clocks = <&cpg CPG_MOD 726>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 726>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					lvds0_in: endpoint {
+						remote-endpoint = <&du_out_lvds0>;
+					};
+				};
+				port@1 {
+					reg = <1>;
+					lvds0_out: endpoint {
 					};
 				};
 			};

arch/arm/boot/dts/sun6i-a31.dtsi

···
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
 			clock-frequency = <24000000>;
+			clock-output-names = "osc24M";
 		};
 
 		osc32k: clk-32k {

arch/arm/boot/dts/sun8i-h3-beelink-x2.dts

···
 
 	aliases {
 		serial0 = &uart0;
-		/* ethernet0 is the H3 emac, defined in sun8i-h3.dtsi */
+		ethernet0 = &emac;
 		ethernet1 = &sdiowifi;
 	};
 

arch/arm/boot/dts/vf610-bk4.dts

···
 	bus-num = <3>;
 	status = "okay";
 	spi-slave;
+	#address-cells = <0>;
 
-	slave@0 {
+	slave {
 		compatible = "lwn,bk4";
 		spi-max-frequency = <30000000>;
-		reg = <0>;
 	};
 };
 

arch/arm/mach-cns3xxx/pcie.c

···
 	} else /* remote PCI bus */
 		base = cnspci->cfg1_regs + ((busno & 0xf) << 20);
 
-	return base + (where & 0xffc) + (devfn << 12);
+	return base + where + (devfn << 12);
 }
 
 static int cns3xxx_pci_read_config(struct pci_bus *bus, unsigned int devfn,
···
 	u32 mask = (0x1ull << (size * 8)) - 1;
 	int shift = (where % 4) * 8;
 
-	ret = pci_generic_config_read32(bus, devfn, where, size, val);
+	ret = pci_generic_config_read(bus, devfn, where, size, val);
 
 	if (ret == PCIBIOS_SUCCESSFUL && !bus->number && !devfn &&
 	    (where & 0xffc) == PCI_CLASS_REVISION)

arch/arm/mach-iop32x/n2100.c

···
 /*
  * N2100 PCI.
  */
-static int __init
-n2100_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int n2100_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq;
 

arch/arm/mach-tango/pm.c

···
 #include <linux/suspend.h>
 #include <asm/suspend.h>
 #include "smc.h"
+#include "pm.h"
 
 static int tango_pm_powerdown(unsigned long arg)
 {
···
 	.valid = suspend_valid_only_mem,
 };
 
-static int __init tango_pm_init(void)
+void __init tango_pm_init(void)
 {
 	suspend_set_ops(&tango_pm_ops);
-	return 0;
 }
-
-late_initcall(tango_pm_init);

arch/arm/mach-tango/pm.h

···
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifdef CONFIG_SUSPEND
+void __init tango_pm_init(void);
+#else
+#define tango_pm_init NULL
+#endif

arch/arm/mach-tango/setup.c

···
 #include <asm/mach/arch.h>
 #include <asm/hardware/cache-l2x0.h>
 #include "smc.h"
+#include "pm.h"
 
 static void tango_l2c_write(unsigned long val, unsigned int reg)
 {
···
 	.dt_compat	= tango_dt_compat,
 	.l2c_aux_mask	= ~0,
 	.l2c_write_sec	= tango_l2c_write,
+	.init_late	= tango_pm_init,
 MACHINE_END

arch/arm/plat-pxa/ssp.c

···
 	if (ssp == NULL)
 		return -ENODEV;
 
-	iounmap(ssp->mmio_base);
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	release_mem_region(res->start, resource_size(res));
 
···
 	list_del(&ssp->node);
 	mutex_unlock(&ssp_lock);
 
-	kfree(ssp);
 	return 0;
 }
 

arch/arm/xen/mm.c

···
 #include <linux/of_address.h>
 #include <linux/slab.h>
 #include <linux/types.h>
-#include <linux/dma-mapping.h>
 #include <linux/vmalloc.h>
 #include <linux/swiotlb.h>
 

arch/arm64/boot/dts/allwinner/sun50i-a64-orangepi-win.dts

···
 		reg = <0x3a3>;
 		interrupt-parent = <&r_intc>;
 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+		x-powers,drive-vbus-en; /* set N_VBUSEN as output pin */
 	};
 };
 

arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi

···
 		};
 
 		video-codec@1c0e000 {
-			compatible = "allwinner,sun50i-h5-video-engine";
+			compatible = "allwinner,sun50i-a64-video-engine";
 			reg = <0x01c0e000 0x1000>;
 			clocks = <&ccu CLK_BUS_VE>, <&ccu CLK_VE>,
 				 <&ccu CLK_DRAM_VE>;

arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_boot>;

arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts

···
 	max-frequency = <200000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddio_ao3v3>;
 	vqmmc-supply = <&vddio_tf>;

arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_card>;

arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&tflash_vdd>;
 	vqmmc-supply = <&tf_io>;

arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_card>;

arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vcc_3v3>;
 };

arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vcc_3v3>;

arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_card>;

arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vcc_3v3>;
 	vqmmc-supply = <&vcc_card>;

arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_card>;

arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_boot>;

arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_boot>;

arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_boot>;

arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts

···
 	max-frequency = <100000000>;
 	disable-wp;
 
-	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
-	cd-inverted;
+	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
 
 	vmmc-supply = <&vddao_3v3>;
 	vqmmc-supply = <&vddio_boot>;

arch/arm64/boot/dts/qcom/msm8996.dtsi

···
 		};
 
 		intc: interrupt-controller@9bc0000 {
-			compatible = "arm,gic-v3";
+			compatible = "qcom,msm8996-gic-v3", "arm,gic-v3";
 			#interrupt-cells = <3>;
 			interrupt-controller;
 			#redistributor-regions = <1>;

arch/arm64/boot/dts/renesas/r8a774a1.dtsi

···
 				 <&cpg CPG_CORE R8A774A1_CLK_S3D1>,
 				 <&scif_clk>;
 			clock-names = "fck", "brg_int", "scif_clk";
+			dmas = <&dmac1 0x13>, <&dmac1 0x12>,
+			       <&dmac2 0x13>, <&dmac2 0x12>;
+			dma-names = "tx", "rx", "tx", "rx";
 			power-domains = <&sysc R8A774A1_PD_ALWAYS_ON>;
 			resets = <&cpg 310>;
 			status = "disabled";

arch/arm64/boot/dts/renesas/r8a7796.dtsi

···
 				 <&cpg CPG_CORE R8A7796_CLK_S3D1>,
 				 <&scif_clk>;
 			clock-names = "fck", "brg_int", "scif_clk";
+			dmas = <&dmac1 0x13>, <&dmac1 0x12>,
+			       <&dmac2 0x13>, <&dmac2 0x12>;
+			dma-names = "tx", "rx", "tx", "rx";
 			power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
 			resets = <&cpg 310>;
 			status = "disabled";

arch/arm64/boot/dts/renesas/r8a77965.dtsi

···
 				 <&cpg CPG_CORE R8A77965_CLK_S3D1>,
 				 <&scif_clk>;
 			clock-names = "fck", "brg_int", "scif_clk";
+			dmas = <&dmac1 0x13>, <&dmac1 0x12>,
+			       <&dmac2 0x13>, <&dmac2 0x12>;
+			dma-names = "tx", "rx", "tx", "rx";
 			power-domains = <&sysc R8A77965_PD_ALWAYS_ON>;
 			resets = <&cpg 310>;
 			status = "disabled";

arch/arm64/kernel/hibernate.c

···
 		dcache_clean_range(__idmap_text_start, __idmap_text_end);
 
 		/* Clean kvm setup code to PoC? */
-		if (el2_reset_needed())
+		if (el2_reset_needed()) {
 			dcache_clean_range(__hyp_idmap_text_start, __hyp_idmap_text_end);
+			dcache_clean_range(__hyp_text_start, __hyp_text_end);
+		}
 
 		/* make the crash dump kernel image protected again */
 		crash_post_resume();

arch/arm64/kernel/hyp-stub.S

···
 #include <asm/virt.h>
 
 	.text
+	.pushsection	.hyp.text, "ax"
+
 	.align 11
 
 ENTRY(__hyp_stub_vectors)

arch/arm64/kernel/kaslr.c

···
 	 * we end up running with module randomization disabled.
 	 */
 	module_alloc_base = (u64)_etext - MODULES_VSIZE;
+	__flush_dcache_area(&module_alloc_base, sizeof(module_alloc_base));
 
 	/*
 	 * Try to map the FDT early. If this fails, we simply bail,

arch/arm64/kernel/machine_kexec_file.c

···
 {
 	void *buf;
 	size_t buf_size;
+	size_t cmdline_len;
 	int ret;
 
+	cmdline_len = cmdline ? strlen(cmdline) : 0;
 	buf_size = fdt_totalsize(initial_boot_params)
-			+ strlen(cmdline) + DTB_EXTRA_SPACE;
+			+ cmdline_len + DTB_EXTRA_SPACE;
 
 	for (;;) {
 		buf = vmalloc(buf_size);

arch/arm64/kernel/probes/kprobes.c

···
 	    addr < (unsigned long)__entry_text_end) ||
 	    (addr >= (unsigned long)__idmap_text_start &&
 	    addr < (unsigned long)__idmap_text_end) ||
+	    (addr >= (unsigned long)__hyp_text_start &&
+	    addr < (unsigned long)__hyp_text_end) ||
 	    !!search_exception_tables(addr))
 		return true;
 
 	if (!is_kernel_in_hyp_mode()) {
-		if ((addr >= (unsigned long)__hyp_text_start &&
-		    addr < (unsigned long)__hyp_text_end) ||
-		    (addr >= (unsigned long)__hyp_idmap_text_start &&
+		if ((addr >= (unsigned long)__hyp_idmap_text_start &&
 		    addr < (unsigned long)__hyp_idmap_text_end))
 			return true;
 	}

arch/arm64/mm/dump.c

···
 
 }
 
-static void walk_pte(struct pg_state *st, pmd_t *pmdp, unsigned long start)
+static void walk_pte(struct pg_state *st, pmd_t *pmdp, unsigned long start,
+		     unsigned long end)
 {
-	pte_t *ptep = pte_offset_kernel(pmdp, 0UL);
-	unsigned long addr;
-	unsigned i;
+	unsigned long addr = start;
+	pte_t *ptep = pte_offset_kernel(pmdp, start);
 
-	for (i = 0; i < PTRS_PER_PTE; i++, ptep++) {
-		addr = start + i * PAGE_SIZE;
+	do {
 		note_page(st, addr, 4, READ_ONCE(pte_val(*ptep)));
-	}
+	} while (ptep++, addr += PAGE_SIZE, addr != end);
 }
 
-static void walk_pmd(struct pg_state *st, pud_t *pudp, unsigned long start)
+static void walk_pmd(struct pg_state *st, pud_t *pudp, unsigned long start,
+		     unsigned long end)
 {
-	pmd_t *pmdp = pmd_offset(pudp, 0UL);
-	unsigned long addr;
-	unsigned i;
+	unsigned long next, addr = start;
+	pmd_t *pmdp = pmd_offset(pudp, start);
 
-	for (i = 0; i < PTRS_PER_PMD; i++, pmdp++) {
+	do {
 		pmd_t pmd = READ_ONCE(*pmdp);
+		next = pmd_addr_end(addr, end);
 
-		addr = start + i * PMD_SIZE;
 		if (pmd_none(pmd) || pmd_sect(pmd)) {
 			note_page(st, addr, 3, pmd_val(pmd));
 		} else {
 			BUG_ON(pmd_bad(pmd));
-			walk_pte(st, pmdp, addr);
+			walk_pte(st, pmdp, addr, next);
 		}
-	}
+	} while (pmdp++, addr = next, addr != end);
 }
 
-static void walk_pud(struct pg_state *st, pgd_t *pgdp, unsigned long start)
+static void walk_pud(struct pg_state *st, pgd_t *pgdp, unsigned long start,
+		     unsigned long end)
 {
-	pud_t *pudp = pud_offset(pgdp, 0UL);
-	unsigned long addr;
-	unsigned i;
+	unsigned long next, addr = start;
+	pud_t *pudp = pud_offset(pgdp, start);
 
-	for (i = 0; i < PTRS_PER_PUD; i++, pudp++) {
+	do {
 		pud_t pud = READ_ONCE(*pudp);
+		next = pud_addr_end(addr, end);
 
-		addr = start + i * PUD_SIZE;
 		if (pud_none(pud) || pud_sect(pud)) {
 			note_page(st, addr, 2, pud_val(pud));
 		} else {
 			BUG_ON(pud_bad(pud));
-			walk_pmd(st, pudp, addr);
+			walk_pmd(st, pudp, addr, next);
 		}
-	}
+	} while (pudp++, addr = next, addr != end);
 }
 
 static void walk_pgd(struct pg_state *st, struct mm_struct *mm,
 		     unsigned long start)
 {
-	pgd_t *pgdp = pgd_offset(mm, 0UL);
-	unsigned i;
-	unsigned long addr;
+	unsigned long end = (start < TASK_SIZE_64) ? TASK_SIZE_64 : 0;
+	unsigned long next, addr = start;
+	pgd_t *pgdp = pgd_offset(mm, start);
 
-	for (i = 0; i < PTRS_PER_PGD; i++, pgdp++) {
+	do {
 		pgd_t pgd = READ_ONCE(*pgdp);
+		next = pgd_addr_end(addr, end);
 
-		addr = start + i * PGDIR_SIZE;
 		if (pgd_none(pgd)) {
 			note_page(st, addr, 1, pgd_val(pgd));
 		} else {
 			BUG_ON(pgd_bad(pgd));
-			walk_pud(st, pgdp, addr);
+			walk_pud(st, pgdp, addr, next);
 		}
-	}
+	} while (pgdp++, addr = next, addr != end);
 }
 
 void ptdump_walk_pgd(struct seq_file *m, struct ptdump_info *info)

arch/arm64/mm/flush.c

···
 		__clean_dcache_area_pou(kaddr, len);
 		__flush_icache_all();
 	} else {
-		flush_icache_range(addr, addr + len);
+		/*
+		 * Don't issue kick_all_cpus_sync() after I-cache invalidation
+		 * for user mappings.
+		 */
+		__flush_icache_range(addr, addr + len);
 	}
 }
 

arch/c6x/include/asm/Kbuild

···
 generic-y += preempt.h
 generic-y += segment.h
 generic-y += serial.h
+generic-y += shmparam.h
 generic-y += tlbflush.h
 generic-y += topology.h
 generic-y += trace_clock.h

arch/c6x/include/uapi/asm/Kbuild

···
 include include/uapi/asm-generic/Kbuild.asm
 
 generic-y += kvm_para.h
-generic-y += shmparam.h
 generic-y += ucontext.h

arch/h8300/include/asm/Kbuild

···
 generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += serial.h
+generic-y += shmparam.h
 generic-y += sizes.h
 generic-y += spinlock.h
 generic-y += timex.h

arch/h8300/include/uapi/asm/Kbuild

···
 include include/uapi/asm-generic/Kbuild.asm
 
 generic-y += kvm_para.h
-generic-y += shmparam.h
 generic-y += ucontext.h

arch/hexagon/include/asm/Kbuild

···
 generic-y += sections.h
 generic-y += segment.h
 generic-y += serial.h
+generic-y += shmparam.h
 generic-y += sizes.h
 generic-y += topology.h
 generic-y += trace_clock.h

arch/hexagon/include/uapi/asm/Kbuild

···
 include include/uapi/asm-generic/Kbuild.asm
 
-generic-y += shmparam.h
 generic-y += ucontext.h

arch/m68k/emu/nfblock.c

···
 static int __init nfhd_init(void)
 {
 	u32 blocks, bsize;
+	int ret;
 	int i;
 
 	nfhd_id = nf_get_id("XHDI");
 	if (!nfhd_id)
 		return -ENODEV;
 
-	major_num = register_blkdev(major_num, "nfhd");
-	if (major_num <= 0) {
+	ret = register_blkdev(major_num, "nfhd");
+	if (ret < 0) {
 		pr_warn("nfhd: unable to get major number\n");
-		return major_num;
+		return ret;
 	}
+
+	if (!major_num)
+		major_num = ret;
 
 	for (i = NFHD_DEV_OFFSET; i < 24; i++) {
 		if (nfhd_get_capacity(i, 0, &blocks, &bsize))

arch/m68k/include/asm/Kbuild

···
 generic-y += percpu.h
 generic-y += preempt.h
 generic-y += sections.h
+generic-y += shmparam.h
 generic-y += spinlock.h
 generic-y += topology.h
 generic-y += trace_clock.h

arch/m68k/include/uapi/asm/Kbuild

···
 
 generated-y += unistd_32.h
 generic-y += kvm_para.h
-generic-y += shmparam.h

arch/microblaze/include/asm/Kbuild

···
 generic-y += percpu.h
 generic-y += preempt.h
 generic-y += serial.h
+generic-y += shmparam.h
 generic-y += syscalls.h
 generic-y += topology.h
 generic-y += trace_clock.h

arch/microblaze/include/uapi/asm/Kbuild

···
 
 generated-y += unistd_32.h
 generic-y += kvm_para.h
-generic-y += shmparam.h
 generic-y += ucontext.h

arch/mips/Kconfig

···
 	  please say 'N' here. If you want a high-performance kernel to run on
 	  new Loongson 3 machines only, please say 'Y' here.
 
+config CPU_LOONGSON3_WORKAROUNDS
+	bool "Old Loongson 3 LLSC Workarounds"
+	default y if SMP
+	depends on CPU_LOONGSON3
+	help
+	  Loongson 3 processors have the llsc issues which require workarounds.
+	  Without workarounds the system may hang unexpectedly.
+
+	  Newer Loongson 3 will fix these issues and no workarounds are needed.
+	  The workarounds have no significant side effect on them but may
+	  decrease the performance of the system so this option should be
+	  disabled unless the kernel is intended to be run on old systems.
+
+	  If unsure, please say Y.
+
 config CPU_LOONGSON2E
 	bool "Loongson 2E"
 	depends on SYS_HAS_CPU_LOONGSON2E

arch/mips/boot/dts/ingenic/ci20.dts

···
 	status = "okay";
 
 	pinctrl-names = "default";
-	pinctrl-0 = <&pins_uart2>;
+	pinctrl-0 = <&pins_uart3>;
 };
 
 &uart4 {
···
 		bias-disable;
 	};
 
-	pins_uart2: uart2 {
-		function = "uart2";
-		groups = "uart2-data", "uart2-hwflow";
+	pins_uart3: uart3 {
+		function = "uart3";
+		groups = "uart3-data", "uart3-hwflow";
 		bias-disable;
 	};
 

arch/mips/boot/dts/ingenic/jz4740.dtsi

···
 		#dma-cells = <2>;
 
 		interrupt-parent = <&intc>;
-		interrupts = <29>;
+		interrupts = <20>;
 
 		clocks = <&cgu JZ4740_CLK_DMA>;
 

arch/mips/boot/dts/xilfpga/nexys4ddr.dts

···
 		interrupts = <0>;
 	};
 
-	axi_i2c: i2c@10A00000 {
+	axi_i2c: i2c@10a00000 {
 	    compatible = "xlnx,xps-iic-2.00.a";
 	    interrupt-parent = <&axi_intc>;
 	    interrupts = <4>;
-	    reg = < 0x10A00000 0x10000 >;
+	    reg = < 0x10a00000 0x10000 >;
 	    clocks = <&ext>;
 	    xlnx,clk-freq = <0x5f5e100>;
 	    xlnx,family = "Artix7";
···
 	    #address-cells = <1>;
 	    #size-cells = <0>;
 
-	    ad7420@4B {
+	    ad7420@4b {
 		compatible = "adi,adt7420";
-		reg = <0x4B>;
+		reg = <0x4b>;
 	    };
 	} ;
 };

arch/mips/include/asm/atomic.h

···
 	if (kernel_uses_llsc) {						      \
 		int temp;						      \
 									      \
+		loongson_llsc_mb();					      \
 		__asm__ __volatile__(					      \
 		"	.set	push					\n"   \
 		"	.set	"MIPS_ISA_LEVEL"			\n"   \
···
 	if (kernel_uses_llsc) {						      \
 		int temp;						      \
 									      \
+		loongson_llsc_mb();					      \
 		__asm__ __volatile__(					      \
 		"	.set	push					\n"   \
 		"	.set	"MIPS_ISA_LEVEL"			\n"   \
···
 	if (kernel_uses_llsc) {						      \
 		int temp;						      \
 									      \
+		loongson_llsc_mb();					      \
 		__asm__ __volatile__(					      \
 		"	.set	push					\n"   \
 		"	.set	"MIPS_ISA_LEVEL"			\n"   \
···
 	if (kernel_uses_llsc) {						      \
 		long temp;						      \
 									      \
+		loongson_llsc_mb();					      \
 		__asm__ __volatile__(					      \
 		"	.set	push					\n"   \
 		"	.set	"MIPS_ISA_LEVEL"			\n"   \
···
 	if (kernel_uses_llsc) {						      \
 		long temp;						      \
 									      \
+		loongson_llsc_mb();					      \
 		__asm__ __volatile__(					      \
 		"	.set	push					\n"   \
 		"	.set	"MIPS_ISA_LEVEL"			\n"   \
···
 	if (kernel_uses_llsc) {						      \
 		long temp;						      \
 									      \
+		loongson_llsc_mb();					      \
 		__asm__ __volatile__(					      \
 		"	.set	push					\n"   \
 		"	.set	"MIPS_ISA_LEVEL"			\n"   \

arch/mips/include/asm/barrier.h

···
 #define __smp_mb__before_atomic()	__smp_mb__before_llsc()
 #define __smp_mb__after_atomic()	smp_llsc_mb()
 
+/*
+ * Some Loongson 3 CPUs have a bug wherein execution of a memory access (load,
+ * store or pref) in between an ll & sc can cause the sc instruction to
+ * erroneously succeed, breaking atomicity. Whilst it's unusual to write code
+ * containing such sequences, this bug bites harder than we might otherwise
+ * expect due to reordering & speculation:
+ *
+ * 1) A memory access appearing prior to the ll in program order may actually
+ *    be executed after the ll - this is the reordering case.
+ *
+ *    In order to avoid this we need to place a memory barrier (ie. a sync
+ *    instruction) prior to every ll instruction, in between it & any earlier
+ *    memory access instructions. Many of these cases are already covered by
+ *    smp_mb__before_llsc() but for the remaining cases, typically ones in
+ *    which multiple CPUs may operate on a memory location but ordering is not
+ *    usually guaranteed, we use loongson_llsc_mb() below.
+ *
+ *    This reordering case is fixed by 3A R2 CPUs, ie. 3A2000 models and later.
+ *
+ * 2) If a conditional branch exists between an ll & sc with a target outside
+ *    of the ll-sc loop, for example an exit upon value mismatch in cmpxchg()
+ *    or similar, then misprediction of the branch may allow speculative
+ *    execution of memory accesses from outside of the ll-sc loop.
+ *
+ *    In order to avoid this we need a memory barrier (ie. a sync instruction)
+ *    at each affected branch target, for which we also use loongson_llsc_mb()
+ *    defined below.
+ *
+ *    This case affects all current Loongson 3 CPUs.
+ */
+#ifdef CONFIG_CPU_LOONGSON3_WORKAROUNDS /* Loongson-3's LLSC workaround */
+#define loongson_llsc_mb()	__asm__ __volatile__(__WEAK_LLSC_MB : : :"memory")
+#else
+#define loongson_llsc_mb()	do { } while (0)
+#endif
+
 #include <asm-generic/barrier.h>
 
 #endif /* __ASM_BARRIER_H */

arch/mips/include/asm/bitops.h

···
 		: "ir" (1UL << bit), GCC_OFF_SMALL_ASM() (*m));
 #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
 	} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	" __LL "%0, %1		# set_bit	\n"
···
 		} while (unlikely(!temp));
 #endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
 	} else if (kernel_uses_llsc) {
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	.set	push				\n"
···
 		: "ir" (~(1UL << bit)));
 #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
 	} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	" __LL "%0, %1		# clear_bit	\n"
···
 		} while (unlikely(!temp));
 #endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
 	} else if (kernel_uses_llsc) {
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	.set	push				\n"
···
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
 
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	.set	push				\n"

arch/mips/include/asm/futex.h

···
 		  "i" (-EFAULT)						\
 		: "memory");						\
 	} else if (cpu_has_llsc) {					\
+		loongson_llsc_mb();					\
 		__asm__ __volatile__(					\
 		"	.set	push				\n"	\
 		"	.set	noat				\n"	\
···
 		  "i" (-EFAULT)
 		: "memory");
 	} else if (cpu_has_llsc) {
+		loongson_llsc_mb();
 		__asm__ __volatile__(
 		"# futex_atomic_cmpxchg_inatomic			\n"
 		"	.set	push					\n"
···
 		: GCC_OFF_SMALL_ASM() (*uaddr), "Jr" (oldval), "Jr" (newval),
 		  "i" (-EFAULT)
 		: "memory");
+		loongson_llsc_mb();
 	} else
 		return -ENOSYS;
 

arch/mips/include/asm/pgtable.h

···
 			: [buddy] "+m" (buddy->pte), [tmp] "=&r" (tmp)
 			: [global] "r" (page_global));
 		} else if (kernel_uses_llsc) {
+			loongson_llsc_mb();
 			__asm__ __volatile__ (
 			"	.set	push				\n"
 			"	.set	"MIPS_ISA_ARCH_LEVEL"		\n"
···
 			"	.set	pop				\n"
 			: [buddy] "+m" (buddy->pte), [tmp] "=&r" (tmp)
 			: [global] "r" (page_global));
+			loongson_llsc_mb();
 		}
 #else /* !CONFIG_SMP */
 		if (pte_none(*buddy))

arch/mips/kernel/mips-cm.c

···
 	}
 
 	/* reprime cause register */
-	write_gcr_error_cause(0);
+	write_gcr_error_cause(cm_error);
 }

arch/mips/kernel/process.c

···
 static int get_frame_info(struct mips_frame_info *info)
 {
 	bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS);
-	union mips_instruction insn, *ip, *ip_end;
+	union mips_instruction insn, *ip;
 	const unsigned int max_insns = 128;
 	unsigned int last_insn_size = 0;
 	unsigned int i;
···
 	if (!ip)
 		goto err;
 
-	ip_end = (void *)ip + info->func_size;
-
-	for (i = 0; i < max_insns && ip < ip_end; i++) {
+	for (i = 0; i < max_insns; i++) {
 		ip = (void *)ip + last_insn_size;
+
 		if (is_mmips && mm_insn_16bit(ip->halfword[0])) {
 			insn.word = ip->halfword[0] << 16;
 			last_insn_size = 2;

arch/mips/loongson64/Platform

···
 endif
 
 cflags-$(CONFIG_CPU_LOONGSON3)	+= -Wa,--trap
+
+#
+# Some versions of binutils, not currently mainline as of 2019/02/04, support
+# an -mfix-loongson3-llsc flag which emits a sync prior to each ll instruction
+# to work around a CPU bug (see loongson_llsc_mb() in asm/barrier.h for a
+# description).
+#
+# We disable this in order to prevent the assembler meddling with the
+# instruction that labels refer to, ie. if we label an ll instruction:
+#
+# 1: ll v0, 0(a0)
+#
+# ...then with the assembler fix applied the label may actually point at a sync
+# instruction inserted by the assembler, and if we were using the label in an
+# exception table the table would no longer contain the address of the ll
+# instruction.
+#
+# Avoid this by explicitly disabling that assembler behaviour. If upstream
+# binutils does not merge support for the flag then we can revisit & remove
+# this later - for now it ensures vendor toolchains don't cause problems.
+#
+cflags-$(CONFIG_CPU_LOONGSON3)	+= $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
+
 #
 # binutils from v2.25 on and gcc starting from v4.9.0 treat -march=loongson3a
 # as MIPS64 R2; older versions as just R1.  This leaves the possibility open

arch/mips/loongson64/common/reset.c

···
 {
 #ifndef CONFIG_LEFI_FIRMWARE_INTERFACE
 	mach_prepare_shutdown();
-	unreachable();
+
+	/*
+	 * It needs a wait loop here, but mips/kernel/reset.c already calls
+	 * a generic delay loop, machine_hang(), so simply return.
+	 */
+	return;
 #else
 	void (*fw_poweroff)(void) = (void *)loongson_sysconf.poweroff_addr;
 

arch/mips/mm/tlbex.c

···
 		 * to mimic that here by taking a load/istream page
 		 * fault.
 		 */
+		if (IS_ENABLED(CONFIG_CPU_LOONGSON3_WORKAROUNDS))
+			uasm_i_sync(p, 0);
 		UASM_i_LA(p, ptr, (unsigned long)tlb_do_page_fault_0);
 		uasm_i_jr(p, ptr);
 
···
 iPTE_LW(u32 **p, unsigned int pte, unsigned int ptr)
 {
 #ifdef CONFIG_SMP
+	if (IS_ENABLED(CONFIG_CPU_LOONGSON3_WORKAROUNDS))
+		uasm_i_sync(p, 0);
 # ifdef CONFIG_PHYS_ADDR_T_64BIT
 	if (cpu_has_64bits)
 		uasm_i_lld(p, pte, 0, ptr);
···
 #endif
 
 	uasm_l_nopage_tlbl(&l, p);
+	if (IS_ENABLED(CONFIG_CPU_LOONGSON3_WORKAROUNDS))
+		uasm_i_sync(&p, 0);
 	build_restore_work_registers(&p);
 #ifdef CONFIG_CPU_MICROMIPS
 	if ((unsigned long)tlb_do_page_fault_0 & 1) {
···
 #endif
 
 	uasm_l_nopage_tlbs(&l, p);
+	if (IS_ENABLED(CONFIG_CPU_LOONGSON3_WORKAROUNDS))
+		uasm_i_sync(&p, 0);
 	build_restore_work_registers(&p);
 #ifdef CONFIG_CPU_MICROMIPS
 	if ((unsigned long)tlb_do_page_fault_1 & 1) {
···
 #endif
 
 	uasm_l_nopage_tlbm(&l, p);
+	if (IS_ENABLED(CONFIG_CPU_LOONGSON3_WORKAROUNDS))
+		uasm_i_sync(&p, 0);
 	build_restore_work_registers(&p);
 #ifdef CONFIG_CPU_MICROMIPS
 	if ((unsigned long)tlb_do_page_fault_1 & 1) {

arch/mips/pci/pci-octeon.c

···
 	if (octeon_has_feature(OCTEON_FEATURE_PCIE))
 		return 0;
 
+	if (!octeon_is_pci_host()) {
+		pr_notice("Not in host mode, PCI Controller not initialized\n");
+		return 0;
+	}
+
 	/* Point pcibios_map_irq() to the PCI version of it */
 	octeon_pcibios_map_irq = octeon_pci_pcibios_map_irq;
 
···
 		octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_SMALL;
 	else
 		octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_BIG;
-
-	if (!octeon_is_pci_host()) {
-		pr_notice("Not in host mode, PCI Controller not initialized\n");
-		return 0;
-	}
 
 	/* PCI I/O and PCI MEM values */
 	set_io_port_base(OCTEON_PCI_IOSPACE_BASE);

arch/mips/vdso/Makefile

···
 	$(filter -E%,$(KBUILD_CFLAGS)) \
 	$(filter -mmicromips,$(KBUILD_CFLAGS)) \
 	$(filter -march=%,$(KBUILD_CFLAGS)) \
+	$(filter -m%-float,$(KBUILD_CFLAGS)) \
 	-D__VDSO__
 
 ifdef CONFIG_CC_IS_CLANG
···
 	$(call cmd,force_checksrc)
 	$(call if_changed_rule,cc_o_c)
 
-$(obj)/vdso-o32.lds: KBUILD_CPPFLAGS := -mabi=32
+$(obj)/vdso-o32.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) -mabi=32
 $(obj)/vdso-o32.lds: $(src)/vdso.lds.S FORCE
 	$(call if_changed_dep,cpp_lds_S)
 
···
 	$(call cmd,force_checksrc)
 	$(call if_changed_rule,cc_o_c)
 
-$(obj)/vdso-n32.lds: KBUILD_CPPFLAGS := -mabi=n32
+$(obj)/vdso-n32.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) -mabi=n32
 $(obj)/vdso-n32.lds: $(src)/vdso.lds.S FORCE
 	$(call if_changed_dep,cpp_lds_S)
 

arch/openrisc/include/asm/Kbuild

···
 generic-y += qrwlock.h
 generic-y += sections.h
 generic-y += segment.h
+generic-y += shmparam.h
 generic-y += string.h
 generic-y += switch_to.h
 generic-y += topology.h

arch/openrisc/include/uapi/asm/Kbuild

···
 include include/uapi/asm-generic/Kbuild.asm
 
 generic-y += kvm_para.h
-generic-y += shmparam.h
 generic-y += ucontext.h

arch/powerpc/include/asm/book3s/64/pgtable.h

···
 
 #define pmd_move_must_withdraw pmd_move_must_withdraw
 struct spinlock;
-static inline int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl,
-					 struct spinlock *old_pmd_ptl,
-					 struct vm_area_struct *vma)
-{
-	if (radix_enabled())
-		return false;
-	/*
-	 * Archs like ppc64 use pgtable to store per pmd
-	 * specific information. So when we switch the pmd,
-	 * we should also withdraw and deposit the pgtable
-	 */
-	return true;
-}
-
-
+extern int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl,
+				  struct spinlock *old_pmd_ptl,
+				  struct vm_area_struct *vma);
+/*
+ * Hash translation mode use the deposited table to store hash pte
+ * slot information.
+ */
 #define arch_needs_pgtable_deposit arch_needs_pgtable_deposit
 static inline bool arch_needs_pgtable_deposit(void)
 {

arch/powerpc/mm/pgtable-book3s64.c

···
 		   atomic_long_read(&direct_pages_count[MMU_PAGE_1G]) << 20);
 }
 #endif /* CONFIG_PROC_FS */
+
+/*
+ * For hash translation mode, we use the deposited table to store hash slot
+ * information and they are stored at PTRS_PER_PMD offset from related pmd
+ * location. Hence a pmd move requires deposit and withdraw.
+ *
+ * For radix translation with split pmd ptl, we store the deposited table in the
+ * pmd page. Hence if we have different pmd page we need to withdraw during pmd
+ * move.
+ *
+ * With hash we use deposited table always irrespective of anon or not.
+ * With radix we use deposited table only for anonymous mapping.
+ */
+int pmd_move_must_withdraw(struct spinlock *new_pmd_ptl,
+			   struct spinlock *old_pmd_ptl,
+			   struct vm_area_struct *vma)
+{
+	if (radix_enabled())
+		return (new_pmd_ptl != old_pmd_ptl) && vma_is_anonymous(vma);
+
+	return true;
+}

arch/powerpc/platforms/pseries/papr_scm.c

···
 {
 	unsigned long ret[PLPAR_HCALL_BUFSIZE];
 	uint64_t rc, token;
+	uint64_t saved = 0;
 
 	/*
 	 * When the hypervisor cannot map all the requested memory in a single
···
 		rc = plpar_hcall(H_SCM_BIND_MEM, ret, p->drc_index, 0,
 				p->blocks, BIND_ANY_ADDR, token);
 		token = ret[0];
+		if (!saved)
+			saved = ret[1];
 		cond_resched();
 	} while (rc == H_BUSY);
 
···
 		return -ENXIO;
 	}
 
-	p->bound_addr = ret[1];
+	p->bound_addr = saved;
 
 	dev_dbg(&p->pdev->dev, "bound drc %x to %pR\n", p->drc_index, &p->res);
 

arch/riscv/Kconfig

···
 	prompt "Base ISA"
 	default ARCH_RV64I
 	help
-	  This selects the base ISA that this kernel will traget and must match
+	  This selects the base ISA that this kernel will target and must match
 	  the target platform.
 
 config ARCH_RV32I

arch/riscv/configs/defconfig

···
 CONFIG_EXPERT=y
 CONFIG_BPF_SYSCALL=y
 CONFIG_SMP=y
-CONFIG_PCI=y
-CONFIG_PCIE_XILINX=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_NET=y
···
 CONFIG_IP_PNP_BOOTP=y
 CONFIG_IP_PNP_RARP=y
 CONFIG_NETLINK_DIAG=y
+CONFIG_PCI=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCI_HOST_GENERIC=y
+CONFIG_PCIE_XILINX=y
 CONFIG_DEVTMPFS=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_VIRTIO_BLK=y
···
 CONFIG_USB_UAS=y
 CONFIG_VIRTIO_MMIO=y
 CONFIG_SIFIVE_PLIC=y
-CONFIG_RAS=y
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
 CONFIG_AUTOFS4_FS=y
···
 CONFIG_NFS_V4_2=y
 CONFIG_ROOT_NFS=y
 CONFIG_CRYPTO_USER_API_HASH=y
+CONFIG_CRYPTO_DEV_VIRTIO=y
 CONFIG_PRINTK_TIME=y
 # CONFIG_RCU_TRACE is not set

arch/riscv/include/asm/page.h

···
 #define __pgd(x)	((pgd_t) { (x) })
 #define __pgprot(x)	((pgprot_t) { (x) })
 
-#ifdef CONFIG_64BITS
+#ifdef CONFIG_64BIT
 #define PTE_FMT "%016lx"
 #else
 #define PTE_FMT "%08lx"

arch/riscv/include/asm/processor.h

···
  * This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
  */
-#define TASK_UNMAPPED_BASE	PAGE_ALIGN(TASK_SIZE >> 1)
+#define TASK_UNMAPPED_BASE	PAGE_ALIGN(TASK_SIZE / 3)
 
 #define STACK_TOP		TASK_SIZE
 #define STACK_TOP_MAX		STACK_TOP

arch/riscv/kernel/asm-offsets.c

···
 	OFFSET(TASK_STACK, task_struct, stack);
 	OFFSET(TASK_TI, task_struct, thread_info);
 	OFFSET(TASK_TI_FLAGS, task_struct, thread_info.flags);
+	OFFSET(TASK_TI_PREEMPT_COUNT, task_struct, thread_info.preempt_count);
 	OFFSET(TASK_TI_KERNEL_SP, task_struct, thread_info.kernel_sp);
 	OFFSET(TASK_TI_USER_SP, task_struct, thread_info.user_sp);
 	OFFSET(TASK_TI_CPU, task_struct, thread_info.cpu);

arch/riscv/kernel/entry.S

···
 	REG_L x2,  PT_SP(sp)
 	.endm
 
+#if !IS_ENABLED(CONFIG_PREEMPT)
+.set resume_kernel, restore_all
+#endif
+
 ENTRY(handle_exception)
 	SAVE_ALL
 
···
 	REG_L s0, PT_SSTATUS(sp)
 	csrc sstatus, SR_SIE
 	andi s0, s0, SR_SPP
-	bnez s0, restore_all
+	bnez s0, resume_kernel
 
 resume_userspace:
 	/* Interrupts must be disabled here so flags are checked atomically */
···
 restore_all:
 	RESTORE_ALL
 	sret
+
+#if IS_ENABLED(CONFIG_PREEMPT)
+resume_kernel:
+	REG_L s0, TASK_TI_PREEMPT_COUNT(tp)
+	bnez s0, restore_all
+need_resched:
+	REG_L s0, TASK_TI_FLAGS(tp)
+	andi s0, s0, _TIF_NEED_RESCHED
+	beqz s0, restore_all
+	call preempt_schedule_irq
+	j need_resched
+#endif
 
 work_pending:
 	/* Enter slow path for supplementary processing */

arch/riscv/kernel/setup.c

···
 	BUG_ON(mem_size == 0);
 
 	set_max_mapnr(PFN_DOWN(mem_size));
-	max_low_pfn = memblock_end_of_DRAM();
+	max_low_pfn = PFN_DOWN(memblock_end_of_DRAM());
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	setup_initrd();

arch/riscv/kernel/smpboot.c

···
 
 	while ((dn = of_find_node_by_type(dn, "cpu"))) {
 		hart = riscv_of_processor_hartid(dn);
-		if (hart < 0) {
-			of_node_put(dn);
+		if (hart < 0)
 			continue;
-		}
 
 		if (hart == cpuid_to_hartid_map(0)) {
 			BUG_ON(found_boot_cpu);
 			found_boot_cpu = 1;
-			of_node_put(dn);
 			continue;
 		}
 
···
 		set_cpu_possible(cpuid, true);
 		set_cpu_present(cpuid, true);
 		cpuid++;
-		of_node_put(dn);
 	}
 
 	BUG_ON(!found_boot_cpu);

arch/riscv/mm/init.c

···
 	unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, };
 
 #ifdef CONFIG_ZONE_DMA32
-	max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G, max_low_pfn));
+	max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G,
+			(unsigned long) PFN_PHYS(max_low_pfn)));
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 

arch/unicore32/include/asm/Kbuild

···
 generic-y += sections.h
 generic-y += segment.h
 generic-y += serial.h
+generic-y += shmparam.h
 generic-y += sizes.h
 generic-y += syscalls.h
 generic-y += topology.h

arch/unicore32/include/uapi/asm/Kbuild

···
 include include/uapi/asm-generic/Kbuild.asm
 
 generic-y += kvm_para.h
-generic-y += shmparam.h
 generic-y += ucontext.h

arch/x86/Kconfig

···
 	  branches. Requires a compiler with -mindirect-branch=thunk-extern
 	  support for full protection. The kernel may run slower.
 
-config X86_RESCTRL
-	bool "Resource Control support"
+config X86_CPU_RESCTRL
+	bool "x86 CPU resource control support"
 	depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD)
 	select KERNFS
 	help
-	  Enable Resource Control support.
+	  Enable x86 CPU resource control support.
 
 	  Provide support for the allocation and monitoring of system resources
 	  usage by the CPU.

arch/x86/boot/compressed/head_64.S

···
 	leal	TRAMPOLINE_32BIT_PGTABLE_OFFSET(%ecx), %eax
 	movl	%eax, %cr3
 3:
+	/* Set EFER.LME=1 as a precaution in case hypervsior pulls the rug */
+	pushl	%ecx
+	pushl	%edx
+	movl	$MSR_EFER, %ecx
+	rdmsr
+	btsl	$_EFER_LME, %eax
+	wrmsr
+	popl	%edx
+	popl	%ecx
+
 	/* Enable PAE and LA57 (if required) paging modes */
 	movl	$X86_CR4_PAE, %eax
 	cmpl	$0, %edx

arch/x86/boot/compressed/pgtable.h

···
 #define TRAMPOLINE_32BIT_PGTABLE_OFFSET	0
 
 #define TRAMPOLINE_32BIT_CODE_OFFSET	PAGE_SIZE
-#define TRAMPOLINE_32BIT_CODE_SIZE	0x60
+#define TRAMPOLINE_32BIT_CODE_SIZE	0x70
 
 #define TRAMPOLINE_32BIT_STACK_END	TRAMPOLINE_32BIT_SIZE
 

arch/x86/events/intel/core.c

···
 
 static void intel_pmu_cpu_dying(int cpu)
 {
+	fini_debug_store_on_cpu(cpu);
+
+	if (x86_pmu.counter_freezing)
+		disable_counter_freeze();
+}
+
+static void intel_pmu_cpu_dead(int cpu)
+{
 	struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
 	struct intel_shared_regs *pc;
 
···
 	}
 
 	free_excl_cntrs(cpu);
-
-	fini_debug_store_on_cpu(cpu);
-
-	if (x86_pmu.counter_freezing)
-		disable_counter_freeze();
 }
 
 static void intel_pmu_sched_task(struct perf_event_context *ctx,
···
 	.cpu_prepare		= intel_pmu_cpu_prepare,
 	.cpu_starting		= intel_pmu_cpu_starting,
 	.cpu_dying		= intel_pmu_cpu_dying,
+	.cpu_dead		= intel_pmu_cpu_dead,
 };
 
 static struct attribute *intel_pmu_attrs[];
···
 	.cpu_prepare		= intel_pmu_cpu_prepare,
 	.cpu_starting		= intel_pmu_cpu_starting,
 	.cpu_dying		= intel_pmu_cpu_dying,
+	.cpu_dead		= intel_pmu_cpu_dead,
+
 	.guest_get_msrs		= intel_guest_get_msrs,
 	.sched_task		= intel_pmu_sched_task,
 };

arch/x86/events/intel/uncore_snbep.c

···
 	.id_table	= snbep_uncore_pci_ids,
 };
 
+#define NODE_ID_MASK	0x7
+
 /*
  * build pci bus to socket mapping
  */
···
 		err = pci_read_config_dword(ubox_dev, nodeid_loc, &config);
 		if (err)
 			break;
-		nodeid = config;
+		nodeid = config & NODE_ID_MASK;
 		/* get the Node ID mapping */
 		err = pci_read_config_dword(ubox_dev, idmap_loc, &config);
 		if (err)

arch/x86/include/asm/intel-family.h

···
  * "Big Core" Processors (Branded as Core, Xeon, etc...)
  *
  * The "_X" parts are generally the EP and EX Xeons, or the
- * "Extreme" ones, like Broadwell-E.
+ * "Extreme" ones, like Broadwell-E, or Atom microserver.
  *
  * While adding a new CPUID for a new microarchitecture, add a new
  * group to keep logically sorted out in chronological order. Within
···
 #define INTEL_FAM6_ATOM_GOLDMONT	0x5C /* Apollo Lake */
 #define INTEL_FAM6_ATOM_GOLDMONT_X	0x5F /* Denverton */
 #define INTEL_FAM6_ATOM_GOLDMONT_PLUS	0x7A /* Gemini Lake */
+#define INTEL_FAM6_ATOM_TREMONT_X	0x86 /* Jacobsville */
 
 /* Xeon Phi */
 

arch/x86/include/asm/page_64_types.h

···
 #endif
 
 #ifdef CONFIG_KASAN
+#ifdef CONFIG_KASAN_EXTRA
+#define KASAN_STACK_ORDER 2
+#else
 #define KASAN_STACK_ORDER 1
+#endif
 #else
 #define KASAN_STACK_ORDER 0
 #endif

arch/x86/include/asm/pgtable.h

···
 static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 			      pmd_t *pmdp, pmd_t pmd)
 {
-	native_set_pmd(pmdp, pmd);
+	set_pmd(pmdp, pmd);
 }
 
 static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,

arch/x86/include/asm/resctrl_sched.h

···
 #ifndef _ASM_X86_RESCTRL_SCHED_H
 #define _ASM_X86_RESCTRL_SCHED_H
 
-#ifdef CONFIG_X86_RESCTRL
+#ifdef CONFIG_X86_CPU_RESCTRL
 
 #include <linux/sched.h>
 #include <linux/jump_label.h>
···
 
 static inline void resctrl_sched_in(void) {}
 
-#endif /* CONFIG_X86_RESCTRL */
+#endif /* CONFIG_X86_CPU_RESCTRL */
 
 #endif /* _ASM_X86_RESCTRL_SCHED_H */

arch/x86/kernel/cpu/Makefile

···
 obj-$(CONFIG_X86_MCE)			+= mce/
 obj-$(CONFIG_MTRR)			+= mtrr/
 obj-$(CONFIG_MICROCODE)			+= microcode/
-obj-$(CONFIG_X86_RESCTRL)		+= resctrl/
+obj-$(CONFIG_X86_CPU_RESCTRL)		+= resctrl/
 
 obj-$(CONFIG_X86_LOCAL_APIC)		+= perfctr-watchdog.o
 

arch/x86/kernel/cpu/bugs.c

···
 	 * identify_boot_cpu() initialized SMT support information, let the
 	 * core code know.
 	 */
-	cpu_smt_check_topology_early();
+	cpu_smt_check_topology();
 
 	if (!IS_ENABLED(CONFIG_SMP)) {
 		pr_info("CPU: ");

arch/x86/kernel/cpu/mce/core.c

···
 			quirk_no_way_out(i, m, regs);
 
 		if (mce_severity(m, mca_cfg.tolerant, &tmp, true) >= MCE_PANIC_SEVERITY) {
+			m->bank = i;
 			mce_read_aux(m, i);
 			*msg = tmp;
 			return 1;

arch/x86/kernel/cpu/microcode/amd.c

···
 	if (!p) {
 		return ret;
 	} else {
-		if (boot_cpu_data.microcode == p->patch_id)
+		if (boot_cpu_data.microcode >= p->patch_id)
 			return ret;
 
 		ret = UCODE_NEW;

arch/x86/kernel/cpu/resctrl/Makefile

···
 # SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_X86_RESCTRL)	+= core.o rdtgroup.o monitor.o
-obj-$(CONFIG_X86_RESCTRL)	+= ctrlmondata.o pseudo_lock.o
+obj-$(CONFIG_X86_CPU_RESCTRL)	+= core.o rdtgroup.o monitor.o
+obj-$(CONFIG_X86_CPU_RESCTRL)	+= ctrlmondata.o pseudo_lock.o
 CFLAGS_pseudo_lock.o = -I$(src)

arch/x86/kernel/kexec-bzimage64.c

···
 	struct efi_info *current_ei = &boot_params.efi_info;
 	struct efi_info *ei = &params->efi_info;
 
+	if (!efi_enabled(EFI_RUNTIME_SERVICES))
+		return 0;
+
 	if (!current_ei->efi_memmap_size)
 		return 0;
 

arch/x86/kvm/vmx/nested.c

···
 	if (!vmx->nested.vmxon && !vmx->nested.smm.vmxon)
 		return;
 
+	hrtimer_cancel(&vmx->nested.preemption_timer);
 	vmx->nested.vmxon = false;
 	vmx->nested.smm.vmxon = false;
 	free_vpid(vmx->nested.vpid02);

arch/x86/kvm/vmx/vmx.c

···
 #include <linux/mod_devicetable.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/sched/smt.h>
 #include <linux/slab.h>
 #include <linux/tboot.h>
 #include <linux/trace_events.h>
···
 			 * Warn upon starting the first VM in a potentially
 			 * insecure environment.
 			 */
-			if (cpu_smt_control == CPU_SMT_ENABLED)
+			if (sched_smt_active())
 				pr_warn_once(L1TF_MSG_SMT);
 			if (l1tf_vmx_mitigation == VMENTER_L1D_FLUSH_NEVER)
 				pr_warn_once(L1TF_MSG_L1D);

arch/x86/kvm/x86.c

···
 {
 	u32 access = (kvm_x86_ops->get_cpl(vcpu) == 3) ? PFERR_USER_MASK : 0;
 
+	/*
+	 * FIXME: this should call handle_emulation_failure if X86EMUL_IO_NEEDED
+	 * is returned, but our callers are not ready for that and they blindly
+	 * call kvm_inject_page_fault.  Ensure that they at least do not leak
+	 * uninitialized kernel stack memory into cr2 and error code.
+	 */
+	memset(exception, 0, sizeof(*exception));
 	return kvm_read_guest_virt_helper(addr, val, bytes, vcpu, access,
 					  exception);
 }

arch/x86/lib/iomem.c

···
 #include <linux/module.h>
 #include <linux/io.h>
 
+#define movs(type,to,from) \
+	asm volatile("movs" type:"=&D" (to), "=&S" (from):"0" (to), "1" (from):"memory")
+
 /* Originally from i386/string.h */
-static __always_inline void __iomem_memcpy(void *to, const void *from, size_t n)
+static __always_inline void rep_movs(void *to, const void *from, size_t n)
 {
 	unsigned long d0, d1, d2;
 	asm volatile("rep ; movsl\n\t"
···
 
 void memcpy_fromio(void *to, const volatile void __iomem *from, size_t n)
 {
-	__iomem_memcpy(to, (const void *)from, n);
+	if (unlikely(!n))
+		return;
+
+	/* Align any unaligned source IO */
+	if (unlikely(1 & (unsigned long)from)) {
+		movs("b", to, from);
+		n--;
+	}
+	if (n > 1 && unlikely(2 & (unsigned long)from)) {
+		movs("w", to, from);
+		n-=2;
+	}
+	rep_movs(to, (const void *)from, n);
 }
 EXPORT_SYMBOL(memcpy_fromio);
 
 void memcpy_toio(volatile void __iomem *to, const void *from, size_t n)
 {
-	__iomem_memcpy((void *)to, (const void *) from, n);
+	if (unlikely(!n))
+		return;
+
+	/* Align any unaligned destination IO */
+	if (unlikely(1 & (unsigned long)to)) {
+		movs("b", to, from);
+		n--;
+	}
+	if (n > 1 && unlikely(2 & (unsigned long)to)) {
+		movs("w", to, from);
+		n-=2;
+	}
+	rep_movs((void *)to, (const void *) from, n);
 }
 EXPORT_SYMBOL(memcpy_toio);
 

arch/x86/mm/fault.c

···
 		return;
 	}
 
-	addr = desc.base0 | (desc.base1 << 16) | (desc.base2 << 24);
+	addr = desc.base0 | (desc.base1 << 16) | ((unsigned long)desc.base2 << 24);
 #ifdef CONFIG_X86_64
 	addr |= ((u64)desc.base3 << 32);
 #endif

arch/x86/mm/pageattr.c

···
 
 #endif
 
+/*
+ * See set_mce_nospec().
+ *
+ * Machine check recovery code needs to change cache mode of poisoned pages to
+ * UC to avoid speculative access logging another error. But passing the
+ * address of the 1:1 mapping to set_memory_uc() is a fine way to encourage a
+ * speculative access. So we cheat and flip the top bit of the address. This
+ * works fine for the code that updates the page tables. But at the end of the
+ * process we need to flush the TLB and cache and the non-canonical address
+ * causes a #GP fault when used by the INVLPG and CLFLUSH instructions.
+ *
+ * But in the common case we already have a canonical address. This code
+ * will fix the top bit if needed and is a no-op otherwise.
+ */
+static inline unsigned long fix_addr(unsigned long addr)
+{
+#ifdef CONFIG_X86_64
+	return (long)(addr << 1) >> 1;
+#else
+	return addr;
+#endif
+}
+
 static unsigned long __cpa_addr(struct cpa_data *cpa, unsigned long idx)
 {
 	if (cpa->flags & CPA_PAGES_ARRAY) {
···
 	unsigned int i;
 
 	for (i = 0; i < cpa->numpages; i++)
-		__flush_tlb_one_kernel(__cpa_addr(cpa, i));
+		__flush_tlb_one_kernel(fix_addr(__cpa_addr(cpa, i)));
 }
 
 static void cpa_flush(struct cpa_data *data, int cache)
···
 		 * Only flush present addresses:
 		 */
 		if (pte && (pte_val(*pte) & _PAGE_PRESENT))
-			clflush_cache_range_opt((void *)addr, PAGE_SIZE);
+			clflush_cache_range_opt((void *)fix_addr(addr), PAGE_SIZE);
 	}
 	mb();
 }
···
 	cpa->numpages = numpages;
 	return ret;
 }
-
-/*
- * Machine check recovery code needs to change cache mode of poisoned
- * pages to UC to avoid speculative access logging another error. But
- * passing the address of the 1:1 mapping to set_memory_uc() is a fine
- * way to encourage a speculative access. So we cheat and flip the top
- * bit of the address. This works fine for the code that updates the
- * page tables. But at the end of the process we need to flush the cache
- * and the non-canonical address causes a #GP fault when used by the
- * CLFLUSH instruction.
- *
- * But in the common case we already have a canonical address. This code
- * will fix the top bit if needed and is a no-op otherwise.
- */
-static inline unsigned long make_addr_canonical_again(unsigned long addr)
-{
-#ifdef CONFIG_X86_64
-	return (long)(addr << 1) >> 1;
-#else
-	return addr;
-#endif
-}
-
 
 static int change_page_attr_set_clr(unsigned long *addr, int numpages,
 				    pgprot_t mask_set, pgprot_t mask_clr,

arch/xtensa/Kconfig

···
 	  If unsure, say N.
 
 config XTENSA_UNALIGNED_USER
-	bool "Unaligned memory access in use space"
+	bool "Unaligned memory access in user space"
 	help
 	  The Xtensa architecture currently does not handle unaligned
 	  memory accesses in hardware but through an exception handler.
···
 	help
 	  Include support for flattened device tree machine descriptions.
 
-config BUILTIN_DTB
+config BUILTIN_DTB_SOURCE
 	string "DTB to build into the kernel image"
 	depends on OF
 

arch/xtensa/boot/dts/Makefile

···
 #
 #
 
-BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_BUILTIN_DTB)).dtb.o
-ifneq ($(CONFIG_BUILTIN_DTB),"")
-obj-$(CONFIG_OF) += $(BUILTIN_DTB)
+BUILTIN_DTB_SOURCE := $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_SOURCE)).dtb.o
+ifneq ($(CONFIG_BUILTIN_DTB_SOURCE),"")
+obj-$(CONFIG_OF) += $(BUILTIN_DTB_SOURCE)
 endif
 
 # for CONFIG_OF_ALL_DTBS test

arch/xtensa/configs/audio_kc705_defconfig

···
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=0x38000000@0"
 CONFIG_USE_OF=y
-CONFIG_BUILTIN_DTB="kc705"
+CONFIG_BUILTIN_DTB_SOURCE="kc705"
 # CONFIG_COMPACTION is not set
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 CONFIG_PM=y

arch/xtensa/configs/cadence_csp_defconfig

···
 # CONFIG_PCI is not set
 CONFIG_XTENSA_PLATFORM_XTFPGA=y
 CONFIG_USE_OF=y
-CONFIG_BUILTIN_DTB="csp"
+CONFIG_BUILTIN_DTB_SOURCE="csp"
 # CONFIG_COMPACTION is not set
 CONFIG_XTFPGA_LCD=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set

arch/xtensa/configs/generic_kc705_defconfig

···
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=0x38000000@0"
 CONFIG_USE_OF=y
-CONFIG_BUILTIN_DTB="kc705"
+CONFIG_BUILTIN_DTB_SOURCE="kc705"
 # CONFIG_COMPACTION is not set
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 CONFIG_NET=y

arch/xtensa/configs/nommu_kc705_defconfig

···
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0x9d050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=256M@0x60000000"
 CONFIG_USE_OF=y
-CONFIG_BUILTIN_DTB="kc705_nommu"
+CONFIG_BUILTIN_DTB_SOURCE="kc705_nommu"
 CONFIG_BINFMT_FLAT=y
 CONFIG_NET=y
 CONFIG_PACKET=y

arch/xtensa/configs/smp_lx200_defconfig

···
 CONFIG_HOTPLUG_CPU=y
 # CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX is not set
 # CONFIG_PCI is not set
+CONFIG_VECTORS_OFFSET=0x00002000
 CONFIG_XTENSA_PLATFORM_XTFPGA=y
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=96M@0"
 CONFIG_USE_OF=y
-CONFIG_BUILTIN_DTB="lx200mx"
+CONFIG_BUILTIN_DTB_SOURCE="lx200mx"
 # CONFIG_COMPACTION is not set
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 CONFIG_NET=y

arch/xtensa/kernel/head.S

···
 
 	movi	a2, cpu_start_ccount
 1:
+	memw
 	l32i	a3, a2, 0
 	beqi	a3, 0, 1b
 	movi	a3, 0
 	s32i	a3, a2, 0
-	memw
 1:
+	memw
 	l32i	a3, a2, 0
 	beqi	a3, 0, 1b
 	wsr	a3, ccount
···
 	rsr	a0, prid
 	neg	a2, a0
 	movi	a3, cpu_start_id
+	memw
 	s32i	a2, a3, 0
 #if XCHAL_DCACHE_IS_WRITEBACK
 	dhwbi	a3, 0
 #endif
 1:
+	memw
 	l32i	a2, a3, 0
 	dhi	a3, 0
 	bne	a2, a0, 1b

arch/xtensa/kernel/smp.c

···
 {
 	unsigned i;
 
-	for (i = 0; i < max_cpus; ++i)
+	for_each_possible_cpu(i)
 		set_cpu_present(i, true);
 }
 
···
 
 	pr_info("%s: Core Count = %d\n", __func__, ncpus);
 	pr_info("%s: Core Id = %d\n", __func__, core_id);
+
+	if (ncpus > NR_CPUS) {
+		ncpus = NR_CPUS;
+		pr_info("%s: limiting core count by %d\n", __func__, ncpus);
+	}
 
 	for (i = 0; i < ncpus; ++i)
 		set_cpu_possible(i, true);
···
 	int i;
 
 #ifdef CONFIG_HOTPLUG_CPU
-	cpu_start_id = cpu;
-	system_flush_invalidate_dcache_range(
-			(unsigned long)&cpu_start_id, sizeof(cpu_start_id));
+	WRITE_ONCE(cpu_start_id, cpu);
+	/* Pairs with the third memw in the cpu_restart */
+	mb();
+	system_flush_invalidate_dcache_range((unsigned long)&cpu_start_id,
+					     sizeof(cpu_start_id));
 #endif
 	smp_call_function_single(0, mx_cpu_start, (void *)cpu, 1);
 
···
 			ccount = get_ccount();
 		while (!ccount);
 
-		cpu_start_ccount = ccount;
+		WRITE_ONCE(cpu_start_ccount, ccount);
 
-		while (time_before(jiffies, timeout)) {
+		do {
+			/*
+			 * Pairs with the first two memws in the
+			 * .Lboot_secondary.
+			 */
 			mb();
-			if (!cpu_start_ccount)
-				break;
-		}
+			ccount = READ_ONCE(cpu_start_ccount);
+		} while (ccount && time_before(jiffies, timeout));
 
-		if (cpu_start_ccount) {
+		if (ccount) {
 			smp_call_function_single(0, mx_cpu_stop,
-					(void *)cpu, 1);
-			cpu_start_ccount = 0;
+						 (void *)cpu, 1);
+			WRITE_ONCE(cpu_start_ccount, 0);
 			return -EIO;
 		}
 	}
···
 	pr_debug("%s: Calling wakeup_secondary(cpu:%d, idle:%p, sp: %08lx)\n",
 			__func__, cpu, idle, start_info.stack);
 
+	init_completion(&cpu_running);
 	ret = boot_secondary(cpu, idle);
 	if (ret == 0) {
 		wait_for_completion_timeout(&cpu_running,
···
 	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
 	while (time_before(jiffies, timeout)) {
 		system_invalidate_dcache_range((unsigned long)&cpu_start_id,
-				sizeof(cpu_start_id));
-		if (cpu_start_id == -cpu) {
+					       sizeof(cpu_start_id));
+		/* Pairs with the second memw in the cpu_restart */
+		mb();
+		if (READ_ONCE(cpu_start_id) == -cpu) {
 			platform_cpu_kill(cpu);
 			return;
 		}

arch/xtensa/kernel/time.c

···
 		container_of(evt, struct ccount_timer, evt);
 
 	if (timer->irq_enabled) {
-		disable_irq(evt->irq);
+		disable_irq_nosync(evt->irq);
 		timer->irq_enabled = 0;
 	}
 	return 0;

block/blk-core.c

···
 	kblockd_schedule_work(&q->timeout_work);
 }
 
+static void blk_timeout_work(struct work_struct *work)
+{
+}
+
 /**
  * blk_alloc_queue_node - allocate a request queue
  * @gfp_mask: memory allocation flags
···
 	timer_setup(&q->backing_dev_info->laptop_mode_wb_timer,
 		    laptop_mode_timer_fn, 0);
 	timer_setup(&q->timeout, blk_rq_timed_out_timer, 0);
-	INIT_WORK(&q->timeout_work, NULL);
+	INIT_WORK(&q->timeout_work, blk_timeout_work);
 	INIT_LIST_HEAD(&q->icq_list);
 #ifdef CONFIG_BLK_CGROUP
 	INIT_LIST_HEAD(&q->blkg_list);

block/blk-flush.c

···
 	blk_flush_complete_seq(rq, fq, REQ_FSEQ_DATA, error);
 	spin_unlock_irqrestore(&fq->mq_flush_lock, flags);
 
-	blk_mq_run_hw_queue(hctx, true);
+	blk_mq_sched_restart(hctx);
 }
 
 /**

block/blk-iolatency.c

···
 #include <linux/sched/loadavg.h>
 #include <linux/sched/signal.h>
 #include <trace/events/block.h>
+#include <linux/blk-mq.h>
 #include "blk-rq-qos.h"
 #include "blk-stat.h"
 
···
 	u64 now = ktime_to_ns(ktime_get());
 	bool issue_as_root = bio_issue_as_root_blkg(bio);
 	bool enabled = false;
+	int inflight = 0;
 
 	blkg = bio->bi_blkg;
 	if (!blkg || !bio_flagged(bio, BIO_TRACKED))
···
 		return;
 
 	enabled = blk_iolatency_enabled(iolat->blkiolat);
+	if (!enabled)
+		return;
+
 	while (blkg && blkg->parent) {
 		iolat = blkg_to_lat(blkg);
 		if (!iolat) {
···
 		}
 		rqw = &iolat->rq_wait;
 
-		atomic_dec(&rqw->inflight);
-		if (!enabled || iolat->min_lat_nsec == 0)
+		inflight = atomic_dec_return(&rqw->inflight);
+		WARN_ON_ONCE(inflight < 0);
+		if (iolat->min_lat_nsec == 0)
 			goto next;
 		iolatency_record_time(iolat, &bio->bi_issue, now,
 				      issue_as_root);
···
 	return 0;
 }
 
-static void iolatency_set_min_lat_nsec(struct blkcg_gq *blkg, u64 val)
+/*
+ * return 1 for enabling iolatency, return -1 for disabling iolatency, otherwise
+ * return 0.
+ */
+static int iolatency_set_min_lat_nsec(struct blkcg_gq *blkg, u64 val)
 {
 	struct iolatency_grp *iolat = blkg_to_lat(blkg);
-	struct blk_iolatency *blkiolat = iolat->blkiolat;
 	u64 oldval = iolat->min_lat_nsec;
 
 	iolat->min_lat_nsec = val;
···
 				    BLKIOLATENCY_MAX_WIN_SIZE);
 
 	if (!oldval && val)
-		atomic_inc(&blkiolat->enabled);
+		return 1;
 	if (oldval && !val)
-		atomic_dec(&blkiolat->enabled);
+		return -1;
+	return 0;
 }
 
 static void iolatency_clear_scaling(struct blkcg_gq *blkg)
···
 	u64 lat_val = 0;
 	u64 oldval;
 	int ret;
+	int enable = 0;
 
 	ret = blkg_conf_prep(blkcg, &blkcg_policy_iolatency, buf, &ctx);
 	if (ret)
···
 	blkg = ctx.blkg;
 	oldval = iolat->min_lat_nsec;
 
-	iolatency_set_min_lat_nsec(blkg, lat_val);
+	enable = iolatency_set_min_lat_nsec(blkg, lat_val);
+	if (enable) {
+		WARN_ON_ONCE(!blk_get_queue(blkg->q));
+		blkg_get(blkg);
+	}
+
 	if (oldval != iolat->min_lat_nsec) {
 		iolatency_clear_scaling(blkg);
 	}
···
 	ret = 0;
 out:
 	blkg_conf_finish(&ctx);
+	if (ret == 0 && enable) {
+		struct iolatency_grp *tmp = blkg_to_lat(blkg);
+		struct blk_iolatency *blkiolat = tmp->blkiolat;
+
+		blk_mq_freeze_queue(blkg->q);
+
+		if (enable == 1)
+			atomic_inc(&blkiolat->enabled);
+		else if (enable == -1)
+			atomic_dec(&blkiolat->enabled);
+		else
+			WARN_ON_ONCE(1);
+
+		blk_mq_unfreeze_queue(blkg->q);
+
+		blkg_put(blkg);
+		blk_put_queue(blkg->q);
+	}
 	return ret ?: nbytes;
 }
 
···
 {
 	struct iolatency_grp *iolat = pd_to_lat(pd);
 	struct blkcg_gq *blkg = lat_to_blkg(iolat);
+	struct blk_iolatency *blkiolat = iolat->blkiolat;
+	int ret;
 
-	iolatency_set_min_lat_nsec(blkg, 0);
+	ret = iolatency_set_min_lat_nsec(blkg, 0);
+	if (ret == 1)
+		atomic_inc(&blkiolat->enabled);
+	if (ret == -1)
+		atomic_dec(&blkiolat->enabled);
 	iolatency_clear_scaling(blkg);
 }
 

block/blk-mq-debugfs.c

···
 static bool debugfs_create_files(struct dentry *parent, void *data,
 				 const struct blk_mq_debugfs_attr *attr)
 {
+	if (IS_ERR_OR_NULL(parent))
+		return false;
+
 	d_inode(parent)->i_private = data;
 
 	for (; attr->name; attr++) {

block/blk-mq.h

···
 	struct kobject		kobj;
 } ____cacheline_aligned_in_smp;
 
-void blk_mq_freeze_queue(struct request_queue *q);
 void blk_mq_free_queue(struct request_queue *q);
 int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr);
 void blk_mq_wake_waiters(struct request_queue *q);

drivers/acpi/bus.c

···
 
 	acpi_permanent_mmap = true;
 
+	/* Initialize debug output. Linux does not use ACPICA defaults */
+	acpi_dbg_level = ACPI_LV_INFO | ACPI_LV_REPAIR;
+
 #ifdef CONFIG_X86
 	/*
 	 * If the machine falls into the DMI check table,

drivers/android/binder.c

···
 static int __init binder_init(void)
 {
 	int ret;
-	char *device_name, *device_names, *device_tmp;
+	char *device_name, *device_tmp;
 	struct binder_device *device;
 	struct hlist_node *tmp;
+	char *device_names = NULL;
 
 	ret = binder_alloc_shrinker_init();
 	if (ret)
···
 				    &transaction_log_fops);
 	}
 
-	/*
-	 * Copy the module_parameter string, because we don't want to
-	 * tokenize it in-place.
-	 */
-	device_names = kstrdup(binder_devices_param, GFP_KERNEL);
-	if (!device_names) {
-		ret = -ENOMEM;
-		goto err_alloc_device_names_failed;
+	if (strcmp(binder_devices_param, "") != 0) {
+		/*
+		* Copy the module_parameter string, because we don't want to
+		* tokenize it in-place.
+		 */
+		device_names = kstrdup(binder_devices_param, GFP_KERNEL);
+		if (!device_names) {
+			ret = -ENOMEM;
+			goto err_alloc_device_names_failed;
+		}
+
+		device_tmp = device_names;
+		while ((device_name = strsep(&device_tmp, ","))) {
+			ret = init_binder_device(device_name);
+			if (ret)
+				goto err_init_binder_device_failed;
+		}
 	}
 
-	device_tmp = device_names;
-	while ((device_name = strsep(&device_tmp, ","))) {
-		ret = init_binder_device(device_name);
-		if (ret)
-			goto err_init_binder_device_failed;
-	}
+	ret = init_binderfs();
+	if (ret)
+		goto err_init_binder_device_failed;
 
 	return ret;
 

drivers/android/binder_internal.h

···
 }
 #endif
 
+#ifdef CONFIG_ANDROID_BINDERFS
+extern int __init init_binderfs(void);
+#else
+static inline int __init init_binderfs(void)
+{
+	return 0;
+}
+#endif
+
 #endif /* _LINUX_BINDER_INTERNAL_H */

drivers/android/binderfs.c

···
 	struct inode *inode = NULL;
 	struct dentry *root = sb->s_root;
 	struct binderfs_info *info = sb->s_fs_info;
+#if defined(CONFIG_IPC_NS)
+	bool use_reserve = (info->ipc_ns == &init_ipc_ns);
+#else
+	bool use_reserve = true;
+#endif
 
 	device = kzalloc(sizeof(*device), GFP_KERNEL);
 	if (!device)
···
 
 	/* Reserve a new minor number for the new device. */
 	mutex_lock(&binderfs_minors_mutex);
-	minor = ida_alloc_max(&binderfs_minors, BINDERFS_MAX_MINOR, GFP_KERNEL);
+	minor = ida_alloc_max(&binderfs_minors,
+			      use_reserve ? BINDERFS_MAX_MINOR :
+					    BINDERFS_MAX_MINOR_CAPPED,
+			      GFP_KERNEL);
 	mutex_unlock(&binderfs_minors_mutex);
 	if (minor < 0) {
 		ret = minor;
···
 	.fs_flags	= FS_USERNS_MOUNT,
 };
 
-static int __init init_binderfs(void)
+int __init init_binderfs(void)
 {
 	int ret;
 
···
 
 	return ret;
 }
-
-device_initcall(init_binderfs);

drivers/ata/libata-core.c

···
 	{ "SAMSUNG MZMPC128HBFU-000MV", "CXM14M1Q", ATA_HORKAGE_NOLPM, },
 	{ "SAMSUNG SSD PM830 mSATA *",  "CXM13D1Q", ATA_HORKAGE_NOLPM, },
 	{ "SAMSUNG MZ7TD256HAFV-000L9", NULL,       ATA_HORKAGE_NOLPM, },
+	{ "SAMSUNG MZ7TE512HMHP-000L1", "EXT06L0Q", ATA_HORKAGE_NOLPM, },
 
 	/* devices that don't properly handle queued TRIM commands */
 	{ "Micron_M500IT_*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |

drivers/base/cacheinfo.c

···
 	ct_idx = get_cacheinfo_idx(this_leaf->type);
 	propname = cache_type_info[ct_idx].size_prop;
 
-	if (of_property_read_u32(np, propname, &this_leaf->size))
-		this_leaf->size = 0;
+	of_property_read_u32(np, propname, &this_leaf->size);
 }
 
 /* not cache_line_size() because that's a macro in include/linux/cache.h */
···
 	ct_idx = get_cacheinfo_idx(this_leaf->type);
 	propname = cache_type_info[ct_idx].nr_sets_prop;
 
-	if (of_property_read_u32(np, propname, &this_leaf->number_of_sets))
-		this_leaf->number_of_sets = 0;
+	of_property_read_u32(np, propname, &this_leaf->number_of_sets);
 }
 
 static void cache_associativity(struct cacheinfo *this_leaf)

drivers/base/power/runtime.c

···
 {
 	int autosuspend_delay;
 	u64 last_busy, expires = 0;
-	u64 now = ktime_to_ns(ktime_get());
+	u64 now = ktime_get_mono_fast_ns();
 
 	if (!dev->power.use_autosuspend)
 		goto out;
···
 	 * If 'expires' is after the current time, we've been called
 	 * too early.
 	 */
-	if (expires > 0 && expires < ktime_to_ns(ktime_get())) {
+	if (expires > 0 && expires < ktime_get_mono_fast_ns()) {
 		dev->power.timer_expires = 0;
 		rpm_suspend(dev, dev->power.timer_autosuspends ?
 		    (RPM_ASYNC | RPM_AUTO) : RPM_ASYNC);
···
 int pm_schedule_suspend(struct device *dev, unsigned int delay)
 {
 	unsigned long flags;
-	ktime_t expires;
+	u64 expires;
 	int retval;
 
 	spin_lock_irqsave(&dev->power.lock, flags);
···
 	/* Other scheduled or pending requests need to be canceled. */
 	pm_runtime_cancel_pending(dev);
 
-	expires = ktime_add(ktime_get(), ms_to_ktime(delay));
-	dev->power.timer_expires = ktime_to_ns(expires);
+	expires = ktime_get_mono_fast_ns() + (u64)delay * NSEC_PER_MSEC;
+	dev->power.timer_expires = expires;
 	dev->power.timer_autosuspends = 0;
 	hrtimer_start(&dev->power.suspend_timer, expires, HRTIMER_MODE_ABS);
 

drivers/clk/clk.c

···
 	if (!parent)
 		return -EINVAL;
 
-	for (i = 0; i < core->num_parents; i++)
-		if (clk_core_get_parent_by_index(core, i) == parent)
+	for (i = 0; i < core->num_parents; i++) {
+		if (core->parents[i] == parent)
 			return i;
+
+		if (core->parents[i])
+			continue;
+
+		/* Fallback to comparing globally unique names */
+		if (!strcmp(parent->name, core->parent_names[i])) {
+			core->parents[i] = parent;
+			return i;
+		}
+	}
 
 	return -EINVAL;
 }

drivers/clk/imx/clk-frac-pll.c

···
 {
 	struct clk_frac_pll *pll = to_clk_frac_pll(hw);
 	u32 val, divfi, divff;
-	u64 temp64 = parent_rate;
+	u64 temp64;
 	int ret;
 
 	parent_rate *= 8;
 	rate *= 2;
 	divfi = rate / parent_rate;
-	temp64 *= rate - divfi;
+	temp64 = parent_rate * divfi;
+	temp64 = rate - temp64;
 	temp64 *= PLL_FRAC_DENOM;
 	do_div(temp64, parent_rate);
 	divff = temp64;

drivers/clk/mmp/clk-of-mmp2.c

···
 #define APMU_DISP1	0x110
 #define APMU_CCIC0	0x50
 #define APMU_CCIC1	0xf4
-#define APMU_SP		0x68
 #define MPMU_UART_PLL	0x14
 
 struct mmp2_clk_unit {
···
 	.reg_info = DEFINE_MIX_REG_INFO(4, 16, 2, 6, 32),
 };
 
-static DEFINE_SPINLOCK(sp_lock);
-
 static struct mmp_param_mux_clk apmu_mux_clks[] = {
 	{MMP2_CLK_DISP0_MUX, "disp0_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP0, 6, 2, 0, &disp0_lock},
 	{MMP2_CLK_DISP1_MUX, "disp1_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP1, 6, 2, 0, &disp1_lock},
···
 	{MMP2_CLK_CCIC1, "ccic1_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x1b, 0x1b, 0x0, 0, &ccic1_lock},
 	{MMP2_CLK_CCIC1_PHY, "ccic1_phy_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x24, 0x24, 0x0, 0, &ccic1_lock},
 	{MMP2_CLK_CCIC1_SPHY, "ccic1_sphy_clk", "ccic1_sphy_div", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x300, 0x300, 0x0, 0, &ccic1_lock},
-	{MMP2_CLK_SP, "sp_clk", NULL, CLK_SET_RATE_PARENT, APMU_SP, 0x1b, 0x1b, 0x0, 0, &sp_lock},
 };
 
 static void mmp2_axi_periph_clk_init(struct mmp2_clk_unit *pxa_unit)

drivers/clk/qcom/gcc-sdm845.c

···
 	"core_bi_pll_test_se",
 };
 
-static const char * const gcc_parent_names_7[] = {
-	"bi_tcxo",
+static const char * const gcc_parent_names_7_ao[] = {
+	"bi_tcxo_ao",
 	"gpll0",
 	"gpll0_out_even",
 	"core_bi_pll_test_se",
···
 
 static const char * const gcc_parent_names_8[] = {
 	"bi_tcxo",
+	"gpll0",
+	"core_bi_pll_test_se",
+};
+
+static const char * const gcc_parent_names_8_ao[] = {
+	"bi_tcxo_ao",
 	"gpll0",
 	"core_bi_pll_test_se",
 };
···
 	.freq_tbl = ftbl_gcc_cpuss_ahb_clk_src,
 	.clkr.hw.init = &(struct clk_init_data){
 		.name = "gcc_cpuss_ahb_clk_src",
-		.parent_names = gcc_parent_names_7,
+		.parent_names = gcc_parent_names_7_ao,
 		.num_parents = 4,
 		.ops = &clk_rcg2_ops,
 	},
···
 	.freq_tbl = ftbl_gcc_cpuss_rbcpr_clk_src,
 	.clkr.hw.init = &(struct clk_init_data){
 		.name = "gcc_cpuss_rbcpr_clk_src",
-		.parent_names = gcc_parent_names_8,
+		.parent_names = gcc_parent_names_8_ao,
 		.num_parents = 3,
 		.ops = &clk_rcg2_ops,
 	},

drivers/clk/ti/divider.c

···
 	num_dividers = i;
 
 	tmp = kcalloc(valid_div + 1, sizeof(*tmp), GFP_KERNEL);
-	if (!tmp)
+	if (!tmp) {
+		*table = ERR_PTR(-ENOMEM);
 		return -ENOMEM;
+	}
 
 	valid_div = 0;
 	*width = 0;
···
 {
 	struct clk_omap_divider *div;
 	struct clk_omap_reg *reg;
+	int ret;
 
 	if (!setup)
 		return NULL;
···
 		div->flags |= CLK_DIVIDER_POWER_OF_TWO;
 
 	div->table = _get_div_table_from_setup(setup, &div->width);
+	if (IS_ERR(div->table)) {
+		ret = PTR_ERR(div->table);
+		kfree(div);
+		return ERR_PTR(ret);
+	}
+
 
 	div->shift = setup->bit_shift;
 	div->latch = -EINVAL;

drivers/cpuidle/poll_state.c

···
 	local_irq_enable();
 	if (!current_set_polling_and_test()) {
 		unsigned int loop_count = 0;
-		u64 limit = TICK_USEC;
+		u64 limit = TICK_NSEC;
 		int i;
 
 		for (i = 1; i < drv->state_count; i++) {

drivers/crypto/cavium/nitrox/nitrox_reqmgr.c

···
 	struct nitrox_device *ndev = cmdq->ndev;
 	struct nitrox_softreq *sr;
 	int req_completed = 0, err = 0, budget;
+	completion_t callback;
+	void *cb_arg;
 
 	/* check all pending requests */
 	budget = atomic_read(&cmdq->pending_count);
···
 		smp_mb__after_atomic();
 		/* remove from response list */
 		response_list_del(sr, cmdq);
-
 		/* ORH error code */
 		err = READ_ONCE(*sr->resp.orh) & 0xff;
-
-		if (sr->callback)
-			sr->callback(sr->cb_arg, err);
+		callback = sr->callback;
+		cb_arg = sr->cb_arg;
 		softreq_destroy(sr);
+		if (callback)
+			callback(cb_arg, err);
 
 		req_completed++;
 	}

drivers/dma/at_xdmac.c

···
 	u32				save_cim;
 	u32				save_cnda;
 	u32				save_cndc;
+	u32				irq_status;
 	unsigned long			status;
 	struct tasklet_struct		tasklet;
 	struct dma_slave_config		sconfig;
···
 	struct at_xdmac_desc	*desc;
 	u32			error_mask;
 
-	dev_dbg(chan2dev(&atchan->chan), "%s: status=0x%08lx\n",
-		 __func__, atchan->status);
+	dev_dbg(chan2dev(&atchan->chan), "%s: status=0x%08x\n",
+		__func__, atchan->irq_status);
 
 	error_mask = AT_XDMAC_CIS_RBEIS
 		     | AT_XDMAC_CIS_WBEIS
···
 
 	if (at_xdmac_chan_is_cyclic(atchan)) {
 		at_xdmac_handle_cyclic(atchan);
-	} else if ((atchan->status & AT_XDMAC_CIS_LIS)
-		   || (atchan->status & error_mask)) {
+	} else if ((atchan->irq_status & AT_XDMAC_CIS_LIS)
+		   || (atchan->irq_status & error_mask)) {
 		struct dma_async_tx_descriptor  *txd;
 
-		if (atchan->status & AT_XDMAC_CIS_RBEIS)
+		if (atchan->irq_status & AT_XDMAC_CIS_RBEIS)
 			dev_err(chan2dev(&atchan->chan), "read bus error!!!");
-		if (atchan->status & AT_XDMAC_CIS_WBEIS)
+		if (atchan->irq_status & AT_XDMAC_CIS_WBEIS)
 			dev_err(chan2dev(&atchan->chan), "write bus error!!!");
-		if (atchan->status & AT_XDMAC_CIS_ROIS)
+		if (atchan->irq_status & AT_XDMAC_CIS_ROIS)
 			dev_err(chan2dev(&atchan->chan), "request overflow error!!!");
 
 		spin_lock(&atchan->lock);
···
 			atchan = &atxdmac->chan[i];
 			chan_imr = at_xdmac_chan_read(atchan, AT_XDMAC_CIM);
 			chan_status = at_xdmac_chan_read(atchan, AT_XDMAC_CIS);
-			atchan->status = chan_status & chan_imr;
+			atchan->irq_status = chan_status & chan_imr;
 			dev_vdbg(atxdmac->dma.dev,
 				 "%s: chan%d: imr=0x%x, status=0x%x\n",
 				 __func__, i, chan_imr, chan_status);
···
 				 at_xdmac_chan_read(atchan, AT_XDMAC_CDA),
 				 at_xdmac_chan_read(atchan, AT_XDMAC_CUBC));
 
-			if (atchan->status & (AT_XDMAC_CIS_RBEIS | AT_XDMAC_CIS_WBEIS))
+			if (atchan->irq_status & (AT_XDMAC_CIS_RBEIS | AT_XDMAC_CIS_WBEIS))
 				at_xdmac_write(atxdmac, AT_XDMAC_GD, atchan->mask);
 
 			tasklet_schedule(&atchan->tasklet);

drivers/dma/bcm2835-dma.c

···
 	}
 }
 
-static int bcm2835_dma_abort(void __iomem *chan_base)
+static int bcm2835_dma_abort(struct bcm2835_chan *c)
 {
-	unsigned long cs;
+	void __iomem *chan_base = c->chan_base;
 	long int timeout = 10000;
 
-	cs = readl(chan_base + BCM2835_DMA_CS);
-	if (!(cs & BCM2835_DMA_ACTIVE))
+	/*
+	 * A zero control block address means the channel is idle.
+	 * (The ACTIVE flag in the CS register is not a reliable indicator.)
+	 */
+	if (!readl(chan_base + BCM2835_DMA_ADDR))
 		return 0;
 
 	/* Write 0 to the active bit - Pause the DMA */
 	writel(0, chan_base + BCM2835_DMA_CS);
 
 	/* Wait for any current AXI transfer to complete */
-	while ((cs & BCM2835_DMA_ISPAUSED) && --timeout) {
+	while ((readl(chan_base + BCM2835_DMA_CS) &
+		BCM2835_DMA_WAITING_FOR_WRITES) && --timeout)
 		cpu_relax();
-		cs = readl(chan_base + BCM2835_DMA_CS);
-	}
 
-	/* We'll un-pause when we set of our next DMA */
+	/* Peripheral might be stuck and fail to signal AXI write responses */
 	if (!timeout)
-		return -ETIMEDOUT;
+		dev_err(c->vc.chan.device->dev,
+			"failed to complete outstanding writes\n");
 
-	if (!(cs & BCM2835_DMA_ACTIVE))
-		return 0;
-
-	/* Terminate the control block chain */
-	writel(0, chan_base + BCM2835_DMA_NEXTCB);
-
-	/* Abort the whole DMA */
-	writel(BCM2835_DMA_ABORT | BCM2835_DMA_ACTIVE,
-	       chan_base + BCM2835_DMA_CS);
-
+	writel(BCM2835_DMA_RESET, chan_base + BCM2835_DMA_CS);
 	return 0;
 }
 
···
 
 	spin_lock_irqsave(&c->vc.lock, flags);
 
-	/* Acknowledge interrupt */
-	writel(BCM2835_DMA_INT, c->chan_base + BCM2835_DMA_CS);
+	/*
+	 * Clear the INT flag to receive further interrupts. Keep the channel
+	 * active in case the descriptor is cyclic or in case the client has
+	 * already terminated the descriptor and issued a new one. (May happen
+	 * if this IRQ handler is threaded.) If the channel is finished, it
+	 * will remain idle despite the ACTIVE flag being set.
+	 */
+	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
+	       c->chan_base + BCM2835_DMA_CS);
 
 	d = c->desc;
 
···
 		if (d->cyclic) {
 			/* call the cyclic callback */
 			vchan_cyclic_callback(&d->vd);
-
-			/* Keep the DMA engine running */
-			writel(BCM2835_DMA_ACTIVE,
-			       c->chan_base + BCM2835_DMA_CS);
-		} else {
+		} else if (!readl(c->chan_base + BCM2835_DMA_ADDR)) {
 			vchan_cookie_complete(&c->desc->vd);
 			bcm2835_dma_start_desc(c);
 		}
···
 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
 	struct bcm2835_dmadev *d = to_bcm2835_dma_dev(c->vc.chan.device);
 	unsigned long flags;
-	int timeout = 10000;
 	LIST_HEAD(head);
 
 	spin_lock_irqsave(&c->vc.lock, flags);
···
 	list_del_init(&c->node);
 	spin_unlock(&d->lock);
 
-	/*
-	 * Stop DMA activity: we assume the callback will not be called
-	 * after bcm_dma_abort() returns (even if it does, it will see
-	 * c->desc is NULL and exit.)
-	 */
+	/* stop DMA activity */
 	if (c->desc) {
 		vchan_terminate_vdesc(&c->desc->vd);
 		c->desc = NULL;
-		bcm2835_dma_abort(c->chan_base);
-
-		/* Wait for stopping */
-		while (--timeout) {
-			if (!(readl(c->chan_base + BCM2835_DMA_CS) &
-						BCM2835_DMA_ACTIVE))
-				break;
-
-			cpu_relax();
-		}
-
-		if (!timeout)
-			dev_err(d->ddev.dev, "DMA transfer could not be terminated\n");
+		bcm2835_dma_abort(c);
 	}
 
 	vchan_get_all_descriptors(&c->vc, &head);

drivers/dma/dmatest.c

···
 			srcs[i] = um->addr[i] + src_off;
 			ret = dma_mapping_error(dev->dev, um->addr[i]);
 			if (ret) {
-				dmaengine_unmap_put(um);
 				result("src mapping error", total_tests,
 				       src_off, dst_off, len, ret);
-				failed_tests++;
-				continue;
+				goto error_unmap_continue;
 			}
 			um->to_cnt++;
 		}
···
 					       DMA_BIDIRECTIONAL);
 			ret = dma_mapping_error(dev->dev, dsts[i]);
 			if (ret) {
-				dmaengine_unmap_put(um);
 				result("dst mapping error", total_tests,
 				       src_off, dst_off, len, ret);
-				failed_tests++;
-				continue;
+				goto error_unmap_continue;
 			}
 			um->bidi_cnt++;
 		}
···
 		}
 
 		if (!tx) {
-			dmaengine_unmap_put(um);
 			result("prep error", total_tests, src_off,
 			       dst_off, len, ret);
 			msleep(100);
-			failed_tests++;
-			continue;
+			goto error_unmap_continue;
 		}
 
 		done->done = false;
···
 		cookie = tx->tx_submit(tx);
 
 		if (dma_submit_error(cookie)) {
-			dmaengine_unmap_put(um);
 			result("submit error", total_tests, src_off,
 			       dst_off, len, ret);
 			msleep(100);
-			failed_tests++;
-			continue;
+			goto error_unmap_continue;
 		}
 		dma_async_issue_pending(chan);
 
···
 
 		status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);
 
-		dmaengine_unmap_put(um);
-
 		if (!done->done) {
 			result("test timed out", total_tests, src_off, dst_off,
 			       len, 0);
-			failed_tests++;
-			continue;
+			goto error_unmap_continue;
 		} else if (status != DMA_COMPLETE) {
 			result(status == DMA_ERROR ?
 			       "completion error status" :
 			       "completion busy status", total_tests, src_off,
 			       dst_off, len, ret);
-			failed_tests++;
-			continue;
+			goto error_unmap_continue;
 		}
+
+		dmaengine_unmap_put(um);
 
 		if (params->noverify) {
 			verbose_result("test passed", total_tests, src_off,
···
 			verbose_result("test passed", total_tests, src_off,
 				       dst_off, len, 0);
 		}
+
+		continue;
+
+error_unmap_continue:
+		dmaengine_unmap_put(um);
+		failed_tests++;
 	}
 	ktime = ktime_sub(ktime_get(), ktime);
 	ktime = ktime_sub(ktime, comparetime);

drivers/dma/imx-dma.c

···
 {
 	struct imxdma_channel *imxdmac = (void *)data;
 	struct imxdma_engine *imxdma = imxdmac->imxdma;
-	struct imxdma_desc *desc;
+	struct imxdma_desc *desc, *next_desc;
 	unsigned long flags;
 
 	spin_lock_irqsave(&imxdma->lock, flags);
···
 	list_move_tail(imxdmac->ld_active.next, &imxdmac->ld_free);
 
 	if (!list_empty(&imxdmac->ld_queue)) {
-		desc = list_first_entry(&imxdmac->ld_queue, struct imxdma_desc,
-					node);
+		next_desc = list_first_entry(&imxdmac->ld_queue,
+					     struct imxdma_desc, node);
 		list_move_tail(imxdmac->ld_queue.next, &imxdmac->ld_active);
-		if (imxdma_xfer_desc(desc) < 0)
+		if (imxdma_xfer_desc(next_desc) < 0)
 			dev_warn(imxdma->dev, "%s: channel: %d couldn't xfer desc\n",
 				 __func__, imxdmac->channel);
 	}

drivers/firmware/arm_scmi/bus.c

···
 }
 EXPORT_SYMBOL_GPL(scmi_driver_unregister);
 
+static void scmi_device_release(struct device *dev)
+{
+	kfree(to_scmi_dev(dev));
+}
+
 struct scmi_device *
 scmi_device_create(struct device_node *np, struct device *parent, int protocol)
 {
···
 	scmi_dev->dev.parent = parent;
 	scmi_dev->dev.of_node = np;
 	scmi_dev->dev.bus = &scmi_bus_type;
+	scmi_dev->dev.release = scmi_device_release;
 	dev_set_name(&scmi_dev->dev, "scmi_dev.%d", id);
 
 	retval = device_register(&scmi_dev->dev);
···
 void scmi_device_destroy(struct scmi_device *scmi_dev)
 {
 	scmi_handle_put(scmi_dev->handle);
-	device_unregister(&scmi_dev->dev);
 	ida_simple_remove(&scmi_bus_id, scmi_dev->id);
-	kfree(scmi_dev);
+	device_unregister(&scmi_dev->dev);
 }
 
 void scmi_set_handle(struct scmi_device *scmi_dev)

drivers/firmware/efi/arm-runtime.c

···
 static struct ptdump_info efi_ptdump_info = {
 	.mm		= &efi_mm,
 	.markers	= (struct addr_marker[]){
-		{ 0,		"UEFI runtime start" },
-		{ DEFAULT_MAP_WINDOW_64, "UEFI runtime end" }
+		{ 0,				"UEFI runtime start" },
+		{ DEFAULT_MAP_WINDOW_64,	"UEFI runtime end" },
+		{ -1,				NULL }
 	},
 	.base_addr	= 0,
 };

drivers/fpga/stratix10-soc.c

···
 		return -ENODEV;
 
 	np = of_find_matching_node(fw_np, s10_of_match);
-	if (!np) {
-		of_node_put(fw_np);
+	if (!np)
 		return -ENODEV;
-	}
 
 	of_node_put(np);
 	ret = of_platform_populate(fw_np, s10_of_match, NULL, NULL);
-	of_node_put(fw_np);
 	if (ret)
 		return ret;
 

drivers/gpio/gpio-altera-a10sr.c

···
 static int altr_a10sr_gpio_direction_output(struct gpio_chip *gc,
 					    unsigned int nr, int value)
 {
-	if (nr <= (ALTR_A10SR_OUT_VALID_RANGE_HI - ALTR_A10SR_LED_VALID_SHIFT))
+	if (nr <= (ALTR_A10SR_OUT_VALID_RANGE_HI - ALTR_A10SR_LED_VALID_SHIFT)) {
+		altr_a10sr_gpio_set(gc, nr, value);
 		return 0;
+	}
 	return -EINVAL;
 }
 

drivers/gpio/gpio-eic-sprd.c

···
 
 static int sprd_eic_get(struct gpio_chip *chip, unsigned int offset)
 {
-	return sprd_eic_read(chip, offset, SPRD_EIC_DBNC_DATA);
+	struct sprd_eic *sprd_eic = gpiochip_get_data(chip);
+
+	switch (sprd_eic->type) {
+	case SPRD_EIC_DEBOUNCE:
+		return sprd_eic_read(chip, offset, SPRD_EIC_DBNC_DATA);
+	case SPRD_EIC_ASYNC:
+		return sprd_eic_read(chip, offset, SPRD_EIC_ASYNC_DATA);
+	case SPRD_EIC_SYNC:
+		return sprd_eic_read(chip, offset, SPRD_EIC_SYNC_DATA);
+	default:
+		return -ENOTSUPP;
+	}
 }
 
 static int sprd_eic_direction_input(struct gpio_chip *chip, unsigned int offset)
···
 			irq_set_handler_locked(data, handle_edge_irq);
 			break;
 		case IRQ_TYPE_EDGE_BOTH:
+			sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTMODE, 0);
 			sprd_eic_update(chip, offset, SPRD_EIC_ASYNC_INTBOTH, 1);
 			irq_set_handler_locked(data, handle_edge_irq);
 			break;

drivers/gpio/gpio-pcf857x.c

···
  */
 struct pcf857x {
 	struct gpio_chip	chip;
+	struct irq_chip		irqchip;
 	struct i2c_client	*client;
 	struct mutex		lock;		/* protect 'out' */
 	unsigned		out;		/* software latch */
···
 	mutex_unlock(&gpio->lock);
 }
 
-static struct irq_chip pcf857x_irq_chip = {
-	.name		= "pcf857x",
-	.irq_enable	= pcf857x_irq_enable,
-	.irq_disable	= pcf857x_irq_disable,
-	.irq_ack	= noop,
-	.irq_mask	= noop,
-	.irq_unmask	= noop,
-	.irq_set_wake	= pcf857x_irq_set_wake,
-	.irq_bus_lock		= pcf857x_irq_bus_lock,
-	.irq_bus_sync_unlock	= pcf857x_irq_bus_sync_unlock,
-};
-
 /*-------------------------------------------------------------------------*/
 
 static int pcf857x_probe(struct i2c_client *client,
···
 
 	/* Enable irqchip if we have an interrupt */
 	if (client->irq) {
+		gpio->irqchip.name = "pcf857x",
+		gpio->irqchip.irq_enable = pcf857x_irq_enable,
+		gpio->irqchip.irq_disable = pcf857x_irq_disable,
+		gpio->irqchip.irq_ack = noop,
+		gpio->irqchip.irq_mask = noop,
+		gpio->irqchip.irq_unmask = noop,
+		gpio->irqchip.irq_set_wake = pcf857x_irq_set_wake,
+		gpio->irqchip.irq_bus_lock = pcf857x_irq_bus_lock,
+		gpio->irqchip.irq_bus_sync_unlock = pcf857x_irq_bus_sync_unlock,
 		status = gpiochip_irqchip_add_nested(&gpio->chip,
-						     &pcf857x_irq_chip,
+						     &gpio->irqchip,
 						     0, handle_level_irq,
 						     IRQ_TYPE_NONE);
 		if (status) {
···
 		if (status)
 			goto fail;
 
-		gpiochip_set_nested_irqchip(&gpio->chip, &pcf857x_irq_chip,
+		gpiochip_set_nested_irqchip(&gpio->chip, &gpio->irqchip,
 					    client->irq);
 		gpio->irq_parent = client->irq;
 	}

drivers/gpio/gpio-vf610.c

···
 	struct vf610_gpio_port *port;
 	struct resource *iores;
 	struct gpio_chip *gc;
+	int i;
 	int ret;
 
 	port = devm_kzalloc(&pdev->dev, sizeof(*port), GFP_KERNEL);
···
 	ret = gpiochip_add_data(gc, port);
 	if (ret < 0)
 		return ret;
+
+	/* Mask all GPIO interrupts */
+	for (i = 0; i < gc->ngpio; i++)
+		vf610_gpio_writel(0, port->base + PORT_PCR(i));
 
 	/* Clear the interrupt status register for all GPIO's */
 	vf610_gpio_writel(~0, port->base + PORT_ISFR);

drivers/gpio/gpiolib.c

···
 	/* Do not leak kernel stack to userspace */
 	memset(&ge, 0, sizeof(ge));
 
-	ge.timestamp = le->timestamp;
+	/*
+	 * We may be running from a nested threaded interrupt in which case
+	 * we didn't get the timestamp from lineevent_irq_handler().
+	 */
+	if (!le->timestamp)
+		ge.timestamp = ktime_get_real_ns();
+	else
+		ge.timestamp = le->timestamp;
 
 	if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE
 	    && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {

drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c

···
 		effective_mode &= ~S_IWUSR;
 
 	if ((adev->flags & AMD_IS_APU) &&
-	    (attr == &sensor_dev_attr_power1_cap_max.dev_attr.attr ||
+	    (attr == &sensor_dev_attr_power1_average.dev_attr.attr ||
+	     attr == &sensor_dev_attr_power1_cap_max.dev_attr.attr ||
 	     attr == &sensor_dev_attr_power1_cap_min.dev_attr.attr||
 	     attr == &sensor_dev_attr_power1_cap.dev_attr.attr))
 		return 0;

drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c

···
 #include "amdgpu_gem.h"
 #include <drm/amdgpu_drm.h>
 #include <linux/dma-buf.h>
+#include <linux/dma-fence-array.h>
 
 /**
  * amdgpu_gem_prime_get_sg_table - &drm_driver.gem_prime_get_sg_table
···
 	return ERR_PTR(ret);
 }
 
+static int
+__reservation_object_make_exclusive(struct reservation_object *obj)
+{
+	struct dma_fence **fences;
+	unsigned int count;
+	int r;
+
+	if (!reservation_object_get_list(obj)) /* no shared fences to convert */
+		return 0;
+
+	r = reservation_object_get_fences_rcu(obj, NULL, &count, &fences);
+	if (r)
+		return r;
+
+	if (count == 0) {
+		/* Now that was unexpected. */
+	} else if (count == 1) {
+		reservation_object_add_excl_fence(obj, fences[0]);
+		dma_fence_put(fences[0]);
+		kfree(fences);
+	} else {
+		struct dma_fence_array *array;
+
+		array = dma_fence_array_create(count, fences,
+					       dma_fence_context_alloc(1), 0,
+					       false);
+		if (!array)
+			goto err_fences_put;
+
+		reservation_object_add_excl_fence(obj, &array->base);
+		dma_fence_put(&array->base);
+	}
+
+	return 0;
+
+err_fences_put:
+	while (count--)
+		dma_fence_put(fences[count]);
+	kfree(fences);
+	return -ENOMEM;
+}
+
 /**
  * amdgpu_gem_map_attach - &dma_buf_ops.attach implementation
  * @dma_buf: Shared DMA buffer
···
 
 	if (attach->dev->driver != adev->dev->driver) {
 		/*
-		 * Wait for all shared fences to complete before we switch to future
-		 * use of exclusive fence on this prime shared bo.
+		 * We only create shared fences for internal use, but importers
+		 * of the dmabuf rely on exclusive fences for implicitly
+		 * tracking write hazards. As any of the current fences may
+		 * correspond to a write, we need to convert all existing
+		 * fences on the reservation object into a single exclusive
+		 * fence.
 		 */
-		r = reservation_object_wait_timeout_rcu(bo->tbo.resv,
-							true, false,
-							MAX_SCHEDULE_TIMEOUT);
-		if (unlikely(r < 0)) {
-			DRM_DEBUG_PRIME("Fence wait failed: %li\n", r);
+		r = __reservation_object_make_exclusive(bo->tbo.resv);
+		if (r)
 			goto error_unreserve;
-		}
 	}
 
 	/* pin buffer into GTT */

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

···
 			 struct amdgpu_task_info *task_info)
 {
 	struct amdgpu_vm *vm;
+	unsigned long flags;
 
-	spin_lock(&adev->vm_manager.pasid_lock);
+	spin_lock_irqsave(&adev->vm_manager.pasid_lock, flags);
 
 	vm = idr_find(&adev->vm_manager.pasid_idr, pasid);
 	if (vm)
 		*task_info = vm->task_info;
 
-	spin_unlock(&adev->vm_manager.pasid_lock);
+	spin_unlock_irqrestore(&adev->vm_manager.pasid_lock, flags);
 }
 
 /**

drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c

···
 static void nbio_v7_4_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
 							bool enable)
 {
+	u32 tmp = 0;
 
+	if (enable) {
+		tmp = REG_SET_FIELD(tmp, DOORBELL_SELFRING_GPA_APER_CNTL, DOORBELL_SELFRING_GPA_APER_EN, 1) |
+		      REG_SET_FIELD(tmp, DOORBELL_SELFRING_GPA_APER_CNTL, DOORBELL_SELFRING_GPA_APER_MODE, 1) |
+		      REG_SET_FIELD(tmp, DOORBELL_SELFRING_GPA_APER_CNTL, DOORBELL_SELFRING_GPA_APER_SIZE, 0);
+
+		WREG32_SOC15(NBIO, 0, mmDOORBELL_SELFRING_GPA_APER_BASE_LOW,
+			     lower_32_bits(adev->doorbell.base));
+		WREG32_SOC15(NBIO, 0, mmDOORBELL_SELFRING_GPA_APER_BASE_HIGH,
+			     upper_32_bits(adev->doorbell.base));
+	}
+
+	WREG32_SOC15(NBIO, 0, mmDOORBELL_SELFRING_GPA_APER_CNTL, tmp);
 }
 
 static void nbio_v7_4_ih_doorbell_range(struct amdgpu_device *adev,

drivers/gpu/drm/amd/amdgpu/soc15.c

···
 	case CHIP_RAVEN:
 		adev->asic_funcs = &soc15_asic_funcs;
 		if (adev->rev_id >= 0x8)
-			adev->external_rev_id = adev->rev_id + 0x81;
+			adev->external_rev_id = adev->rev_id + 0x79;
 		else if (adev->pdev->device == 0x15d8)
 			adev->external_rev_id = adev->rev_id + 0x41;
+		else if (adev->rev_id == 1)
+			adev->external_rev_id = adev->rev_id + 0x20;
 		else
-			adev->external_rev_id = 0x1;
+			adev->external_rev_id = adev->rev_id + 0x01;
 
 		if (adev->rev_id >= 0x8) {
 			adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |

drivers/gpu/drm/amd/amdkfd/kfd_crat.c

···
 	return 0;
 }
 
-#if CONFIG_X86_64
+#ifdef CONFIG_X86_64
 static int kfd_fill_iolink_info_for_cpu(int numa_node_id, int *avail_size,
 				uint32_t *num_entries,
 				struct crat_subtype_iolink *sub_type_hdr)

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

···
 	}
 
 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
-	    connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+	    connector_type == DRM_MODE_CONNECTOR_eDP) {
 		drm_connector_attach_vrr_capable_property(
 			&aconnector->base);
 	}

drivers/gpu/drm/amd/display/dc/dce/dce_clk_mgr.c

···
 			dc,
 			context->bw.dce.sclk_khz);
 
-	pp_display_cfg->min_dcfclock_khz = pp_display_cfg->min_engine_clock_khz;
+	/*
+	 * As workaround for >4x4K lightup set dcfclock to min_engine_clock value.
+	 * This is not required for less than 5 displays,
+	 * thus don't request decfclk in dc to avoid impact
+	 * on power saving.
+	 *
+	 */
+	pp_display_cfg->min_dcfclock_khz = (context->stream_count > 4)?
+			pp_display_cfg->min_engine_clock_khz : 0;
 
 	pp_display_cfg->min_engine_clock_deep_sleep_khz
 			= context->bw.dce.sclk_deep_sleep_khz;

drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c

···
 		break;
 	case amd_pp_dpp_clock:
 		pclk_vol_table = pinfo->vdd_dep_on_dppclk;
+		break;
 	default:
 		return -EINVAL;
 	}

drivers/gpu/drm/drm_modes.c

···
 	if (mode->hsync)
 		return mode->hsync;
 
-	if (mode->htotal < 0)
+	if (mode->htotal <= 0)
 		return 0;
 
 	calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */

drivers/gpu/drm/i915/intel_ddi.c

···
 			return DDI_CLK_SEL_TBT_810;
 		default:
 			MISSING_CASE(clock);
-			break;
+			return DDI_CLK_SEL_NONE;
 		}
 	case DPLL_ID_ICL_MGPLL1:
 	case DPLL_ID_ICL_MGPLL2:

drivers/gpu/drm/i915/intel_display.c

···
 	}
 }
 
+static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
+
+	/*
+	 * Some SNB BIOSen (eg. ASUS K53SV) are known to misprogram
+	 * the hardware when a high res displays plugged in. DPLL P
+	 * divider is zero, and the pipe timings are bonkers. We'll
+	 * try to disable everything in that case.
+	 *
+	 * FIXME would be nice to be able to sanitize this state
+	 * without several WARNs, but for now let's take the easy
+	 * road.
+	 */
+	return IS_GEN6(dev_priv) &&
+		crtc_state->base.active &&
+		crtc_state->shared_dpll &&
+		crtc_state->port_clock == 0;
+}
+
 static void intel_sanitize_encoder(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_connector *connector;
+	struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
+	struct intel_crtc_state *crtc_state = crtc ?
+		to_intel_crtc_state(crtc->base.state) : NULL;
 
 	/* We need to check both for a crtc link (meaning that the
 	 * encoder is active and trying to read from a pipe) and the
 	 * pipe itself being active. */
-	bool has_active_crtc = encoder->base.crtc &&
-		to_intel_crtc(encoder->base.crtc)->active;
+	bool has_active_crtc = crtc_state &&
+		crtc_state->base.active;
+
+	if (crtc_state && has_bogus_dpll_config(crtc_state)) {
+		DRM_DEBUG_KMS("BIOS has misprogrammed the hardware. Disabling pipe %c\n",
+			      pipe_name(crtc->pipe));
+		has_active_crtc = false;
+	}
 
 	connector = intel_encoder_find_connector(encoder);
 	if (connector && !has_active_crtc) {
···
 		/* Connector is active, but has no active pipe. This is
 		 * fallout from our resume register restoring. Disable
 		 * the encoder manually again. */
-		if (encoder->base.crtc) {
-			struct drm_crtc_state *crtc_state = encoder->base.crtc->state;
+		if (crtc_state) {
+			struct drm_encoder *best_encoder;
 
 			DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
 				      encoder->base.base.id,
 				      encoder->base.name);
+
+			/* avoid oopsing in case the hooks consult best_encoder */
+			best_encoder = connector->base.state->best_encoder;
+			connector->base.state->best_encoder = &encoder->base;
+
 			if (encoder->disable)
-				encoder->disable(encoder, to_intel_crtc_state(crtc_state), connector->base.state);
+				encoder->disable(encoder, crtc_state,
+						 connector->base.state);
 			if (encoder->post_disable)
-				encoder->post_disable(encoder, to_intel_crtc_state(crtc_state), connector->base.state);
+				encoder->post_disable(encoder, crtc_state,
+						      connector->base.state);
+
+			connector->base.state->best_encoder = best_encoder;
 		}
 		encoder->base.crtc = NULL;
 

drivers/gpu/drm/i915/intel_sprite.c

···
 
 	keymax = (key->max_value & 0xffffff) | PLANE_KEYMAX_ALPHA(alpha);
 
-	keymsk = key->channel_mask & 0x3ffffff;
+	keymsk = key->channel_mask & 0x7ffffff;
 	if (alpha < 0xff)
 		keymsk |= PLANE_KEYMSK_ALPHA_ENABLE;
 

drivers/gpu/drm/omapdrm/dss/dsi.c

···
 
 static int dsi_dump_dsi_clocks(struct seq_file *s, void *p)
 {
-	struct dsi_data *dsi = p;
+	struct dsi_data *dsi = s->private;
 	struct dss_pll_clock_info *cinfo = &dsi->pll.cinfo;
 	enum dss_clk_source dispc_clk_src, dsi_clk_src;
 	int dsi_module = dsi->module_id;
···
 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
 static int dsi_dump_dsi_irqs(struct seq_file *s, void *p)
 {
-	struct dsi_data *dsi = p;
+	struct dsi_data *dsi = s->private;
 	unsigned long flags;
 	struct dsi_irq_stats stats;
 
···
 
 static int dsi_dump_dsi_regs(struct seq_file *s, void *p)
 {
-	struct dsi_data *dsi = p;
+	struct dsi_data *dsi = s->private;
 
 	if (dsi_runtime_get(dsi))
 		return 0;
···
 	dsi->vm.flags |= DISPLAY_FLAGS_HSYNC_HIGH;
 	dsi->vm.flags &= ~DISPLAY_FLAGS_VSYNC_LOW;
 	dsi->vm.flags |= DISPLAY_FLAGS_VSYNC_HIGH;
+	/*
+	 * HACK: These flags should be handled through the omap_dss_device bus
+	 * flags, but this will only be possible when the DSI encoder will be
+	 * converted to the omapdrm-managed encoder model.
+	 */
+	dsi->vm.flags &= ~DISPLAY_FLAGS_PIXDATA_NEGEDGE;
+	dsi->vm.flags |= DISPLAY_FLAGS_PIXDATA_POSEDGE;
+	dsi->vm.flags &= ~DISPLAY_FLAGS_DE_LOW;
+	dsi->vm.flags |= DISPLAY_FLAGS_DE_HIGH;
+	dsi->vm.flags &= ~DISPLAY_FLAGS_SYNC_POSEDGE;
+	dsi->vm.flags |= DISPLAY_FLAGS_SYNC_NEGEDGE;
 
 	dss_mgr_set_timings(&dsi->output, &dsi->vm);
 
···
 
 	snprintf(name, sizeof(name), "dsi%u_regs", dsi->module_id + 1);
 	dsi->debugfs.regs = dss_debugfs_create_file(dss, name,
-						    dsi_dump_dsi_regs, &dsi);
+						    dsi_dump_dsi_regs, dsi);
 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
 	snprintf(name, sizeof(name), "dsi%u_irqs", dsi->module_id + 1);
 	dsi->debugfs.irqs = dss_debugfs_create_file(dss, name,
-						    dsi_dump_dsi_irqs, &dsi);
+						    dsi_dump_dsi_irqs, dsi);
 #endif
 	snprintf(name, sizeof(name), "dsi%u_clks", dsi->module_id + 1);
 	dsi->debugfs.clks = dss_debugfs_create_file(dss, name,
-						    dsi_dump_dsi_clocks, &dsi);
+						    dsi_dump_dsi_clocks, dsi);
 
 	return 0;
 }
···
 	dss_debugfs_remove_file(dsi->debugfs.clks);
 	dss_debugfs_remove_file(dsi->debugfs.irqs);
 	dss_debugfs_remove_file(dsi->debugfs.regs);
-
-	of_platform_depopulate(dev);
 
 	WARN_ON(dsi->scp_clk_refcount > 0);
 
···
 	component_del(&pdev->dev, &dsi_component_ops);
 
 	dsi_uninit_output(dsi);
+
+	of_platform_depopulate(&pdev->dev);
 
 	pm_runtime_disable(&pdev->dev);
 

drivers/gpu/drm/radeon/ci_dpm.c

···
 	u16 data_offset, size;
 	u8 frev, crev;
 	struct ci_power_info *pi;
-	enum pci_bus_speed speed_cap;
+	enum pci_bus_speed speed_cap = PCI_SPEED_UNKNOWN;
 	struct pci_dev *root = rdev->pdev->bus->self;
 	int ret;
 
···
 		return -ENOMEM;
 	rdev->pm.dpm.priv = pi;
 
-	speed_cap = pcie_get_speed_cap(root);
+	if (!pci_is_root_bus(rdev->pdev->bus))
+		speed_cap = pcie_get_speed_cap(root);
 	if (speed_cap == PCI_SPEED_UNKNOWN) {
 		pi->sys_pcie_mask = 0;
 	} else {

drivers/gpu/drm/radeon/si_dpm.c

···
 	struct ni_power_info *ni_pi;
 	struct si_power_info *si_pi;
 	struct atom_clock_dividers dividers;
-	enum pci_bus_speed speed_cap;
+	enum pci_bus_speed speed_cap = PCI_SPEED_UNKNOWN;
 	struct pci_dev *root = rdev->pdev->bus->self;
 	int ret;
 
···
 	eg_pi = &ni_pi->eg;
 	pi = &eg_pi->rv7xx;
 
-	speed_cap = pcie_get_speed_cap(root);
+	if (!pci_is_root_bus(rdev->pdev->bus))
+		speed_cap = pcie_get_speed_cap(root);
 	if (speed_cap == PCI_SPEED_UNKNOWN) {
 		si_pi->sys_pcie_mask = 0;
 	} else {

drivers/gpu/drm/rockchip/rockchip_rgb.c

···
-//SPDX-License-Identifier: GPL-2.0+
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
  * Author:
  *      Sandy Huang <[e-mail]>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <drm/drmP.h>

drivers/gpu/drm/rockchip/rockchip_rgb.h

···
-//SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
  * Author:
  *      Sandy Huang <[e-mail]>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #ifdef CONFIG_ROCKCHIP_RGB

drivers/gpu/drm/sun4i/sun4i_tcon.c

···
 			return PTR_ERR(tcon->sclk0);
 		}
 	}
+	clk_prepare_enable(tcon->sclk0);
 
 	if (tcon->quirks->has_channel_1) {
 		tcon->sclk1 = devm_clk_get(dev, "tcon-ch1");
···
 
 static void sun4i_tcon_free_clocks(struct sun4i_tcon *tcon)
 {
+	clk_disable_unprepare(tcon->sclk0);
 	clk_disable_unprepare(tcon->clk);
 }
 

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

···
  **************************************************************************/
 #include <linux/module.h>
 #include <linux/console.h>
+#include <linux/dma-mapping.h>
 
 #include <drm/drmP.h>
 #include "vmwgfx_drv.h"
···
 #include <drm/ttm/ttm_placement.h>
 #include <drm/ttm/ttm_bo_driver.h>
 #include <drm/ttm/ttm_module.h>
-#include <linux/intel-iommu.h>
 
 #define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices"
 #define VMWGFX_CHIP_SVGAII 0
···
 }
 
 /**
+ * vmw_assume_iommu - Figure out whether coherent dma-remapping might be
+ * taking place.
+ * @dev: Pointer to the struct drm_device.
+ *
+ * Return: true if iommu present, false otherwise.
+ */
+static bool vmw_assume_iommu(struct drm_device *dev)
+{
+	const struct dma_map_ops *ops = get_dma_ops(dev->dev);
+
+	return !dma_is_direct(ops) && ops &&
+		ops->map_page != dma_direct_map_page;
+}
+
+/**
  * vmw_dma_select_mode - Determine how DMA mappings should be set up for this
  * system.
  *
···
 		[vmw_dma_alloc_coherent] = "Using coherent TTM pages.",
 		[vmw_dma_map_populate] = "Keeping DMA mappings.",
 		[vmw_dma_map_bind] = "Giving up DMA mappings early."};
-#ifdef CONFIG_X86
-	const struct dma_map_ops *dma_ops = get_dma_ops(dev_priv->dev->dev);
-
-#ifdef CONFIG_INTEL_IOMMU
-	if (intel_iommu_enabled) {
-		dev_priv->map_mode = vmw_dma_map_populate;
-		goto out_fixup;
-	}
-#endif
-
-	if (!(vmw_force_iommu || vmw_force_coherent)) {
-		dev_priv->map_mode = vmw_dma_phys;
-		DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]);
-		return 0;
-	}
-
-	dev_priv->map_mode = vmw_dma_map_populate;
-
-	if (dma_ops && dma_ops->sync_single_for_cpu)
-		dev_priv->map_mode = vmw_dma_alloc_coherent;
-#ifdef CONFIG_SWIOTLB
-	if (swiotlb_nr_tbl() == 0)
-		dev_priv->map_mode = vmw_dma_map_populate;
-#endif
-
-#ifdef CONFIG_INTEL_IOMMU
-out_fixup:
-#endif
-	if (dev_priv->map_mode == vmw_dma_map_populate &&
-	    vmw_restrict_iommu)
-		dev_priv->map_mode = vmw_dma_map_bind;
 
 	if (vmw_force_coherent)
 		dev_priv->map_mode = vmw_dma_alloc_coherent;
+	else if (vmw_assume_iommu(dev_priv->dev))
+		dev_priv->map_mode = vmw_dma_map_populate;
+	else if (!vmw_force_iommu)
+		dev_priv->map_mode = vmw_dma_phys;
+	else if (IS_ENABLED(CONFIG_SWIOTLB) && swiotlb_nr_tbl())
+		dev_priv->map_mode = vmw_dma_alloc_coherent;
+	else
+		dev_priv->map_mode = vmw_dma_map_populate;
 
-#if !defined(CONFIG_SWIOTLB) && !defined(CONFIG_INTEL_IOMMU)
-	/*
-	 * No coherent page pool
-	 */
-	if (dev_priv->map_mode == vmw_dma_alloc_coherent)
+	if (dev_priv->map_mode == vmw_dma_map_populate && vmw_restrict_iommu)
+		dev_priv->map_mode = vmw_dma_map_bind;
+
+	/* No TTM coherent page pool? FIXME: Ask TTM instead! */
+        if (!(IS_ENABLED(CONFIG_SWIOTLB) || IS_ENABLED(CONFIG_INTEL_IOMMU)) &&
+	    (dev_priv->map_mode == vmw_dma_alloc_coherent))
 		return -EINVAL;
-#endif
-
-#else /* CONFIG_X86 */
-	dev_priv->map_mode = vmw_dma_map_populate;
-#endif /* CONFIG_X86 */
 
 	DRM_INFO("DMA map mode: %s\n", names[dev_priv->map_mode]);
-
 	return 0;
 }
 
···
  * With 32-bit we can only handle 32 bit PFNs. Optionally set that
  * restriction also for 64-bit systems.
  */
-#ifdef CONFIG_INTEL_IOMMU
 static int vmw_dma_masks(struct vmw_private *dev_priv)
 {
 	struct drm_device *dev = dev_priv->dev;
+	int ret = 0;
 
-	if (intel_iommu_enabled &&
+	ret = dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64));
+	if (dev_priv->map_mode != vmw_dma_phys &&
 	    (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask)) {
 		DRM_INFO("Restricting DMA addresses to 44 bits.\n");
-		return dma_set_mask(dev->dev, DMA_BIT_MASK(44));
+		return dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(44));
 	}
-	return 0;
+
+	return ret;
 }
-#else
-static int vmw_dma_masks(struct vmw_private *dev_priv)
-{
-	return 0;
-}
-#endif
 
 static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 {

drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c

···
 		*p_fence = NULL;
 	}
 
-	return 0;
+	return ret;
 }
 
 /**

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

···
 		struct drm_connector_state *conn_state;
 		struct vmw_connector_state *vmw_conn_state;
 
-		if (!du->pref_active) {
+		if (!du->pref_active && new_crtc_state->enable) {
 			ret = -EINVAL;
 			goto clean;
 		}
···
 				      user_fence_rep)
 {
 	struct vmw_fence_obj *fence = NULL;
-	uint32_t handle;
-	int ret;
+	uint32_t handle = 0;
+	int ret = 0;
 
 	if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
 	    out_fence)

drivers/hid/hid-debug.c

···
 
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
+#include <linux/kfifo.h>
 #include <linux/sched/signal.h>
 #include <linux/export.h>
 #include <linux/slab.h>
···
 /* enqueue string to 'events' ring buffer */
 void hid_debug_event(struct hid_device *hdev, char *buf)
 {
-	unsigned i;
 	struct hid_debug_list *list;
 	unsigned long flags;
 
 	spin_lock_irqsave(&hdev->debug_list_lock, flags);
-	list_for_each_entry(list, &hdev->debug_list, node) {
-		for (i = 0; buf[i]; i++)
-			list->hid_debug_buf[(list->tail + i) % HID_DEBUG_BUFSIZE] =
-				buf[i];
-		list->tail = (list->tail + i) % HID_DEBUG_BUFSIZE;
-        }
+	list_for_each_entry(list, &hdev->debug_list, node)
+		kfifo_in(&list->hid_debug_fifo, buf, strlen(buf));
 	spin_unlock_irqrestore(&hdev->debug_list_lock, flags);
 
 	wake_up_interruptible(&hdev->debug_wait);
···
 	hid_debug_event(hdev, buf);
 
 	kfree(buf);
-        wake_up_interruptible(&hdev->debug_wait);
-
+	wake_up_interruptible(&hdev->debug_wait);
 }
 EXPORT_SYMBOL_GPL(hid_dump_input);
 
···
 		goto out;
 	}
 
-	if (!(list->hid_debug_buf = kzalloc(HID_DEBUG_BUFSIZE, GFP_KERNEL))) {
-		err = -ENOMEM;
+	err = kfifo_alloc(&list->hid_debug_fifo, HID_DEBUG_FIFOSIZE, GFP_KERNEL);
+	if (err) {
 		kfree(list);
 		goto out;
 	}
···
 		size_t count, loff_t *ppos)
 {
 	struct hid_debug_list *list = file->private_data;
-	int ret = 0, len;
+	int ret = 0, copied;
 	DECLARE_WAITQUEUE(wait, current);
 
 	mutex_lock(&list->read_mutex);
-	while (ret == 0) {
-		if (list->head == list->tail) {
-			add_wait_queue(&list->hdev->debug_wait, &wait);
-			set_current_state(TASK_INTERRUPTIBLE);
+	if (kfifo_is_empty(&list->hid_debug_fifo)) {
+		add_wait_queue(&list->hdev->debug_wait, &wait);
+		set_current_state(TASK_INTERRUPTIBLE);
 
-			while (list->head == list->tail) {
-				if (file->f_flags & O_NONBLOCK) {
-					ret = -EAGAIN;
-					break;
-				}
-				if (signal_pending(current)) {
-					ret = -ERESTARTSYS;
-					break;
-				}
-
-				if (!list->hdev || !list->hdev->debug) {
-					ret = -EIO;
-					set_current_state(TASK_RUNNING);
-					goto out;
-				}
-
-				/* allow O_NONBLOCK from other threads */
-				mutex_unlock(&list->read_mutex);
-				schedule();
-				mutex_lock(&list->read_mutex);
-				set_current_state(TASK_INTERRUPTIBLE);
+		while (kfifo_is_empty(&list->hid_debug_fifo)) {
+			if (file->f_flags & O_NONBLOCK) {
+				ret = -EAGAIN;
+				break;
 			}
 
-			set_current_state(TASK_RUNNING);
-			remove_wait_queue(&list->hdev->debug_wait, &wait);
+			if (signal_pending(current)) {
+				ret = -ERESTARTSYS;
+				break;
+			}
+
+			/* if list->hdev is NULL we cannot remove_wait_queue().
+			 * if list->hdev->debug is 0 then hid_debug_unregister()
+			 * was already called and list->hdev is being destroyed.
+			 * if we add remove_wait_queue() here we can hit a race.
+			 */
+			if (!list->hdev || !list->hdev->debug) {
+				ret = -EIO;
+				set_current_state(TASK_RUNNING);
+				goto out;
+			}
+
+			/* allow O_NONBLOCK from other threads */
+			mutex_unlock(&list->read_mutex);
+			schedule();
+			mutex_lock(&list->read_mutex);
+			set_current_state(TASK_INTERRUPTIBLE);
 		}
+
+		__set_current_state(TASK_RUNNING);
+		remove_wait_queue(&list->hdev->debug_wait, &wait);
 
 		if (ret)
 			goto out;
-
-		/* pass the ringbuffer contents to userspace */
-copy_rest:
-		if (list->tail == list->head)
-			goto out;
-		if (list->tail > list->head) {
-			len = list->tail - list->head;
-			if (len > count)
-				len = count;
-
-			if (copy_to_user(buffer + ret, &list->hid_debug_buf[list->head], len)) {
-				ret = -EFAULT;
-				goto out;
-			}
-			ret += len;
-			list->head += len;
-		} else {
-			len = HID_DEBUG_BUFSIZE - list->head;
-			if (len > count)
-				len = count;
-
-			if (copy_to_user(buffer, &list->hid_debug_buf[list->head], len)) {
-				ret = -EFAULT;
-				goto out;
-			}
-			list->head = 0;
-			ret += len;
-			count -= len;
-			if (count > 0)
-				goto copy_rest;
-		}
-
 	}
+
+	/* pass the fifo content to userspace, locking is not needed with only
+	 * one concurrent reader and one concurrent writer
+	 */
+	ret = kfifo_to_user(&list->hid_debug_fifo, buffer, count, &copied);
+	if (ret)
+		goto out;
+	ret = copied;
 out:
 	mutex_unlock(&list->read_mutex);
 	return ret;
···
 	struct hid_debug_list *list = file->private_data;
 
 	poll_wait(file, &list->hdev->debug_wait, wait);
-	if (list->head != list->tail)
+	if (!kfifo_is_empty(&list->hid_debug_fifo))
 		return EPOLLIN | EPOLLRDNORM;
 	if (!list->hdev->debug)
 		return EPOLLERR | EPOLLHUP;
···
 	spin_lock_irqsave(&list->hdev->debug_list_lock, flags);
 	list_del(&list->node);
 	spin_unlock_irqrestore(&list->hdev->debug_list_lock, flags);
-	kfree(list->hid_debug_buf);
+	kfifo_free(&list->hid_debug_fifo);
 	kfree(list);
 
 	return 0;
···
 {
 	debugfs_remove_recursive(hid_debug_root);
 }
-

drivers/i2c/busses/i2c-omap.c

···
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int omap_i2c_runtime_suspend(struct device *dev)
+static int __maybe_unused omap_i2c_runtime_suspend(struct device *dev)
 {
 	struct omap_i2c_dev *omap = dev_get_drvdata(dev);
 
···
 	return 0;
 }
 
-static int omap_i2c_runtime_resume(struct device *dev)
+static int __maybe_unused omap_i2c_runtime_resume(struct device *dev)
 {
 	struct omap_i2c_dev *omap = dev_get_drvdata(dev);
 
···
 }
 
 static const struct dev_pm_ops omap_i2c_pm_ops = {
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				      pm_runtime_force_resume)
 	SET_RUNTIME_PM_OPS(omap_i2c_runtime_suspend,
 			   omap_i2c_runtime_resume, NULL)
 };
-#define OMAP_I2C_PM_OPS (&omap_i2c_pm_ops)
-#else
-#define OMAP_I2C_PM_OPS NULL
-#endif /* CONFIG_PM */
 
 static struct platform_driver omap_i2c_driver = {
 	.probe		= omap_i2c_probe,
 	.remove		= omap_i2c_remove,
 	.driver		= {
 		.name	= "omap_i2c",
-		.pm	= OMAP_I2C_PM_OPS,
+		.pm	= &omap_i2c_pm_ops,
 		.of_match_table = of_match_ptr(omap_i2c_of_match),
 	},
 };

drivers/i3c/master.c

···
 
 	ret = i3c_master_retrieve_dev_info(newdev);
 	if (ret)
-		goto err_free_dev;
+		goto err_detach_dev;
 
 	olddev = i3c_master_search_i3c_dev_duplicate(newdev);
 	if (olddev) {

drivers/i3c/master/dw-i3c-master.c

···
 	spin_unlock_irqrestore(&master->xferqueue.lock, flags);
 }
 
-static void dw_i3c_master_dequeue_xfer(struct dw_i3c_master *master,
-				       struct dw_i3c_xfer *xfer)
+static void dw_i3c_master_dequeue_xfer_locked(struct dw_i3c_master *master,
+					      struct dw_i3c_xfer *xfer)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&master->xferqueue.lock, flags);
 	if (master->xferqueue.cur == xfer) {
 		u32 status;
 
···
 	} else {
 		list_del_init(&xfer->node);
 	}
+}
+
+static void dw_i3c_master_dequeue_xfer(struct dw_i3c_master *master,
+				       struct dw_i3c_xfer *xfer)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&master->xferqueue.lock, flags);
+	dw_i3c_master_dequeue_xfer_locked(master, xfer);
 	spin_unlock_irqrestore(&master->xferqueue.lock, flags);
 }
 
···
 	complete(&xfer->comp);
 
 	if (ret < 0) {
-		dw_i3c_master_dequeue_xfer(master, xfer);
+		dw_i3c_master_dequeue_xfer_locked(master, xfer);
 		writel(readl(master->regs + DEVICE_CTRL) | DEV_CTRL_RESUME,
 		       master->regs + DEVICE_CTRL);
 	}

drivers/ide/ide-atapi.c

···
 
 int ide_queue_sense_rq(ide_drive_t *drive, void *special)
 {
-	struct request *sense_rq = drive->sense_rq;
+	ide_hwif_t *hwif = drive->hwif;
+	struct request *sense_rq;
+	unsigned long flags;
+
+	spin_lock_irqsave(&hwif->lock, flags);
 
 	/* deferred failure from ide_prep_sense() */
 	if (!drive->sense_rq_armed) {
 		printk(KERN_WARNING PFX "%s: error queuing a sense request\n",
 		       drive->name);
+		spin_unlock_irqrestore(&hwif->lock, flags);
 		return -ENOMEM;
 	}
 
+	sense_rq = drive->sense_rq;
 	ide_req(sense_rq)->special = special;
 	drive->sense_rq_armed = false;
 
 	drive->hwif->rq = NULL;
 
 	ide_insert_request_head(drive, sense_rq);
+	spin_unlock_irqrestore(&hwif->lock, flags);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ide_queue_sense_rq);

drivers/ide/ide-io.c

···
 	}
 
 	if (!blk_update_request(rq, error, nr_bytes)) {
-		if (rq == drive->sense_rq)
+		if (rq == drive->sense_rq) {
 			drive->sense_rq = NULL;
+			drive->sense_rq_active = false;
+		}
 
 		__blk_mq_end_request(rq, error);
 		return 0;
···
 		blk_mq_delay_run_hw_queue(q->queue_hw_ctx[0], 3);
 }
 
-/*
- * Issue a new request to a device.
- */
-blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *hctx,
-			  const struct blk_mq_queue_data *bd)
+blk_status_t ide_issue_rq(ide_drive_t *drive, struct request *rq,
+			  bool local_requeue)
 {
-	ide_drive_t	*drive = hctx->queue->queuedata;
-	ide_hwif_t	*hwif = drive->hwif;
+	ide_hwif_t *hwif = drive->hwif;
 	struct ide_host *host = hwif->host;
-	struct request	*rq = bd->rq;
 	ide_startstop_t	startstop;
 
 	if (!blk_rq_is_passthrough(rq) && !(rq->rq_flags & RQF_DONTPREP)) {
···
 
 	if (ide_lock_host(host, hwif))
 		return BLK_STS_DEV_RESOURCE;
-
-	blk_mq_start_request(rq);
 
 	spin_lock_irq(&hwif->lock);
 
···
 		}
 		hwif->cur_dev = drive;
 		drive->dev_flags &= ~(IDE_DFLAG_SLEEPING | IDE_DFLAG_PARKED);
-
-		/*
-		 * we know that the queue isn't empty, but this can happen
-		 * if ->prep_rq() decides to kill a request
-		 */
-		if (!rq) {
-			rq = bd->rq;
-			if (!rq) {
-				ide_unlock_port(hwif);
-				goto out;
-			}
-		}
 
 		/*
 		 * Sanity: don't accept a request that isn't a PM request
···
 		}
 	} else {
 plug_device:
+		if (local_requeue)
+			list_add(&rq->queuelist, &drive->rq_list);
 		spin_unlock_irq(&hwif->lock);
 		ide_unlock_host(host);
-		ide_requeue_and_plug(drive, rq);
+		if (!local_requeue)
+			ide_requeue_and_plug(drive, rq);
 		return BLK_STS_OK;
 	}
 
···
 	if (rq == NULL)
 		ide_unlock_host(host);
 	return BLK_STS_OK;
+}
+
+/*
+ * Issue a new request to a device.
+ */
+blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *hctx,
+			  const struct blk_mq_queue_data *bd)
+{
+	ide_drive_t *drive = hctx->queue->queuedata;
+	ide_hwif_t *hwif = drive->hwif;
+
+	spin_lock_irq(&hwif->lock);
+	if (drive->sense_rq_active) {
+		spin_unlock_irq(&hwif->lock);
+		return BLK_STS_DEV_RESOURCE;
+	}
+	spin_unlock_irq(&hwif->lock);
+
+	blk_mq_start_request(bd->rq);
+	return ide_issue_rq(drive, bd->rq, false);
 }
 
 static int drive_is_ready(ide_drive_t *drive)
···
 
 void ide_insert_request_head(ide_drive_t *drive, struct request *rq)
 {
-	ide_hwif_t *hwif = drive->hwif;
-	unsigned long flags;
-
-	spin_lock_irqsave(&hwif->lock, flags);
+	drive->sense_rq_active = true;
 	list_add_tail(&rq->queuelist, &drive->rq_list);
-	spin_unlock_irqrestore(&hwif->lock, flags);
-
 	kblockd_schedule_work(&drive->rq_work);
 }
 EXPORT_SYMBOL_GPL(ide_insert_request_head);

drivers/ide/ide-park.c

···
 	scsi_req(rq)->cmd[0] = REQ_UNPARK_HEADS;
 	scsi_req(rq)->cmd_len = 1;
 	ide_req(rq)->type = ATA_PRIV_MISC;
+	spin_lock_irq(&hwif->lock);
 	ide_insert_request_head(drive, rq);
+	spin_unlock_irq(&hwif->lock);
 
 out:
 	return;

drivers/ide/ide-probe.c

···
 	ide_drive_t *drive = container_of(work, ide_drive_t, rq_work);
 	ide_hwif_t *hwif = drive->hwif;
 	struct request *rq;
+	blk_status_t ret;
 	LIST_HEAD(list);
 
+	blk_mq_quiesce_queue(drive->queue);
+
+	ret = BLK_STS_OK;
 	spin_lock_irq(&hwif->lock);
-	if (!list_empty(&drive->rq_list))
-		list_splice_init(&drive->rq_list, &list);
+	while (!list_empty(&drive->rq_list)) {
+		rq = list_first_entry(&drive->rq_list, struct request, queuelist);
+		list_del_init(&rq->queuelist);
+
+		spin_unlock_irq(&hwif->lock);
+		ret = ide_issue_rq(drive, rq, true);
+		spin_lock_irq(&hwif->lock);
+	}
 	spin_unlock_irq(&hwif->lock);
 
-	while (!list_empty(&list)) {
-		rq = list_first_entry(&list, struct request, queuelist);
-		list_del_init(&rq->queuelist);
-		blk_execute_rq_nowait(drive->queue, rq->rq_disk, rq, true, NULL);
-	}
+	blk_mq_unquiesce_queue(drive->queue);
+
+	if (ret != BLK_STS_OK)
+		kblockd_schedule_work(&drive->rq_work);
 }
 
 static const u8 ide_hwif_to_major[] =

drivers/iio/adc/axp288_adc.c

···
 #include <linux/iio/machine.h>
 #include <linux/iio/driver.h>
 
-#define AXP288_ADC_EN_MASK		0xF1
-#define AXP288_ADC_TS_PIN_GPADC		0xF2
-#define AXP288_ADC_TS_PIN_ON		0xF3
+/*
+ * This mask enables all ADCs except for the battery temp-sensor (TS), that is
+ * left as-is to avoid breaking charging on devices without a temp-sensor.
+ */
+#define AXP288_ADC_EN_MASK				0xF0
+#define AXP288_ADC_TS_ENABLE				0x01
+
+#define AXP288_ADC_TS_CURRENT_ON_OFF_MASK		GENMASK(1, 0)
+#define AXP288_ADC_TS_CURRENT_OFF			(0 << 0)
+#define AXP288_ADC_TS_CURRENT_ON_WHEN_CHARGING		(1 << 0)
+#define AXP288_ADC_TS_CURRENT_ON_ONDEMAND		(2 << 0)
+#define AXP288_ADC_TS_CURRENT_ON			(3 << 0)
 
 enum axp288_adc_id {
 	AXP288_ADC_TS,
···
 struct axp288_adc_info {
 	int irq;
 	struct regmap *regmap;
+	bool ts_enabled;
 };
 
 static const struct iio_chan_spec axp288_adc_channels[] = {
···
 	return IIO_VAL_INT;
 }
 
-static int axp288_adc_set_ts(struct regmap *regmap, unsigned int mode,
-				unsigned long address)
+/*
+ * The current-source used for the battery temp-sensor (TS) is shared
+ * with the GPADC. For proper fuel-gauge and charger operation the TS
+ * current-source needs to be permanently on. But to read the GPADC we
+ * need to temporary switch the TS current-source to ondemand, so that
+ * the GPADC can use it, otherwise we will always read an all 0 value.
+ */
+static int axp288_adc_set_ts(struct axp288_adc_info *info,
+			     unsigned int mode, unsigned long address)
 {
 	int ret;
 
-	/* channels other than GPADC do not need to switch TS pin */
+	/* No need to switch the current-source if the TS pin is disabled */
+	if (!info->ts_enabled)
+		return 0;
+
+	/* Channels other than GPADC do not need the current source */
 	if (address != AXP288_GP_ADC_H)
 		return 0;
 
-	ret = regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, mode);
+	ret = regmap_update_bits(info->regmap, AXP288_ADC_TS_PIN_CTRL,
+				 AXP288_ADC_TS_CURRENT_ON_OFF_MASK, mode);
 	if (ret)
 		return ret;
 
 	/* When switching to the GPADC pin give things some time to settle */
-	if (mode == AXP288_ADC_TS_PIN_GPADC)
+	if (mode == AXP288_ADC_TS_CURRENT_ON_ONDEMAND)
 		usleep_range(6000, 10000);
 
 	return 0;
···
 	mutex_lock(&indio_dev->mlock);
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		if (axp288_adc_set_ts(info->regmap, AXP288_ADC_TS_PIN_GPADC,
+		if (axp288_adc_set_ts(info, AXP288_ADC_TS_CURRENT_ON_ONDEMAND,
 					chan->address)) {
 			dev_err(&indio_dev->dev, "GPADC mode\n");
 			ret = -EINVAL;
 			break;
 		}
 		ret = axp288_adc_read_channel(val, chan->address, info->regmap);
-		if (axp288_adc_set_ts(info->regmap, AXP288_ADC_TS_PIN_ON,
+		if (axp288_adc_set_ts(info, AXP288_ADC_TS_CURRENT_ON,
 						chan->address))
 			dev_err(&indio_dev->dev, "TS pin restore\n");
 		break;
···
 	return ret;
 }
 
-static int axp288_adc_set_state(struct regmap *regmap)
+static int axp288_adc_initialize(struct axp288_adc_info *info)
 {
-	/* ADC should be always enabled for internal FG to function */
-	if (regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, AXP288_ADC_TS_PIN_ON))
-		return -EIO;
+	int ret, adc_enable_val;
 
-	return regmap_write(regmap, AXP20X_ADC_EN1, AXP288_ADC_EN_MASK);
+	/*
+	 * Determine if the TS pin is enabled and set the TS current-source
+	 * accordingly.
+	 */
+	ret = regmap_read(info->regmap, AXP20X_ADC_EN1, &adc_enable_val);
+	if (ret)
+		return ret;
+
+	if (adc_enable_val & AXP288_ADC_TS_ENABLE) {
+		info->ts_enabled = true;
+		ret = regmap_update_bits(info->regmap, AXP288_ADC_TS_PIN_CTRL,
+					 AXP288_ADC_TS_CURRENT_ON_OFF_MASK,
+					 AXP288_ADC_TS_CURRENT_ON);
+	} else {
+		info->ts_enabled = false;
+		ret = regmap_update_bits(info->regmap, AXP288_ADC_TS_PIN_CTRL,
+					 AXP288_ADC_TS_CURRENT_ON_OFF_MASK,
+					 AXP288_ADC_TS_CURRENT_OFF);
+	}
+	if (ret)
+		return ret;
+
+	/* Turn on the ADC for all channels except TS, leave TS as is */
+	return regmap_update_bits(info->regmap, AXP20X_ADC_EN1,
+				  AXP288_ADC_EN_MASK, AXP288_ADC_EN_MASK);
 }
 
 static const struct iio_info axp288_adc_iio_info = {
···
 	 * Set ADC to enabled state at all time, including system suspend.
 	 * otherwise internal fuel gauge functionality may be affected.
 	 */
-	ret = axp288_adc_set_state(axp20x->regmap);
+	ret = axp288_adc_initialize(info);
 	if (ret) {
 		dev_err(&pdev->dev, "unable to enable ADC device\n");
 		return ret;

drivers/iio/adc/ti-ads8688.c

···
 
 #define ADS8688_VREF_MV			4096
 #define ADS8688_REALBITS		16
+#define ADS8688_MAX_CHANNELS		8
 
 /*
  * enum ads8688_range - ADS8688 reference voltage range
···
 {
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
-	u16 buffer[8];
+	u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)];
 	int i, j = 0;
 
 	for (i = 0; i < indio_dev->masklength; i++) {

drivers/iio/chemical/atlas-ph-sensor.c

···
 	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_TEMP:
-			*val = 1; /* 0.01 */
-			*val2 = 100;
-			break;
+			*val = 10;
+			return IIO_VAL_INT;
 		case IIO_PH:
 			*val = 1; /* 0.001 */
 			*val2 = 1000;
···
 			   int val, int val2, long mask)
 {
 	struct atlas_data *data = iio_priv(indio_dev);
-	__be32 reg = cpu_to_be32(val);
+	__be32 reg = cpu_to_be32(val / 10);
 
 	if (val2 != 0 || val < 0 || val > 20000)
 		return -EINVAL;

drivers/infiniband/core/core_priv.h

···
 #endif
 
 struct ib_device *ib_device_get_by_index(u32 ifindex);
-void ib_device_put(struct ib_device *device);
 /* RDMA device netlink */
 void nldev_init(void);
 void nldev_exit(void);

drivers/infiniband/core/device.c

···
 	down_read(&lists_rwsem);
 	device = __ib_device_get_by_index(index);
 	if (device) {
-		/* Do not return a device if unregistration has started. */
-		if (!refcount_inc_not_zero(&device->refcount))
+		if (!ib_device_try_get(device))
 			device = NULL;
 	}
 	up_read(&lists_rwsem);
 	return device;
 }
 
+/**
+ * ib_device_put - Release IB device reference
+ * @device: device whose reference to be released
+ *
+ * ib_device_put() releases reference to the IB device to allow it to be
+ * unregistered and eventually free.
+ */
 void ib_device_put(struct ib_device *device)
 {
 	if (refcount_dec_and_test(&device->refcount))
 		complete(&device->unreg_completion);
 }
+EXPORT_SYMBOL(ib_device_put);
 
 static struct ib_device *__ib_device_get_by_name(const char *name)
 {
···
 	rwlock_init(&device->client_data_lock);
 	INIT_LIST_HEAD(&device->client_data_list);
 	INIT_LIST_HEAD(&device->port_list);
-	refcount_set(&device->refcount, 1);
 	init_completion(&device->unreg_completion);
 
 	return device;
···
 		goto cg_cleanup;
 	}
 
+	refcount_set(&device->refcount, 1);
 	device->reg_state = IB_DEV_REGISTERED;
 
 	list_for_each_entry(client, &client_list, list)

drivers/infiniband/core/umem_odp.c

···
 	umem->writable   = 1;
 	umem->is_odp = 1;
 	odp_data->per_mm = per_mm;
+	umem->owning_mm  = per_mm->mm;
+	mmgrab(umem->owning_mm);
 
 	mutex_init(&odp_data->umem_mutex);
 	init_completion(&odp_data->notifier_completion);
···
 out_page_list:
 	vfree(odp_data->page_list);
 out_odp_data:
+	mmdrop(umem->owning_mm);
 	kfree(odp_data);
 	return ERR_PTR(ret);
 }

drivers/infiniband/core/uverbs_main.c

···
 	if (atomic_dec_and_test(&file->device->refcount))
 		ib_uverbs_comp_dev(file->device);
 
+	if (file->async_file)
+		kref_put(&file->async_file->ref,
+			 ib_uverbs_release_async_event_file);
 	put_device(&file->device->dev);
 	kfree(file);
 }
···
 
 		/* Get an arbitrary mm pointer that hasn't been cleaned yet */
 		mutex_lock(&ufile->umap_lock);
-		if (!list_empty(&ufile->umaps)) {
-			mm = list_first_entry(&ufile->umaps,
-					      struct rdma_umap_priv, list)
-				     ->vma->vm_mm;
-			mmget(mm);
+		while (!list_empty(&ufile->umaps)) {
+			int ret;
+
+			priv = list_first_entry(&ufile->umaps,
+						struct rdma_umap_priv, list);
+			mm = priv->vma->vm_mm;
+			ret = mmget_not_zero(mm);
+			if (!ret) {
+				list_del_init(&priv->list);
+				mm = NULL;
+				continue;
+			}
+			break;
 		}
 		mutex_unlock(&ufile->umap_lock);
 		if (!mm)
···
 	mutex_lock(&file->device->lists_mutex);
 	list_del_init(&file->list);
 	mutex_unlock(&file->device->lists_mutex);
-
-	if (file->async_file)
-		kref_put(&file->async_file->ref,
-			 ib_uverbs_release_async_event_file);
 
 	kref_put(&file->ref, ib_uverbs_release_file);
 

drivers/infiniband/core/uverbs_std_types_device.c

···
 static int UVERBS_HANDLER(UVERBS_METHOD_QUERY_PORT)(
 	struct uverbs_attr_bundle *attrs)
 {
-	struct ib_device *ib_dev = attrs->ufile->device->ib_dev;
+	struct ib_device *ib_dev;
 	struct ib_port_attr attr = {};
 	struct ib_uverbs_query_port_resp_ex resp = {};
+	struct ib_ucontext *ucontext;
 	int ret;
 	u8 port_num;
+
+	ucontext = ib_uverbs_get_ucontext(attrs);
+	if (IS_ERR(ucontext))
+		return PTR_ERR(ucontext);
+	ib_dev = ucontext->device;
 
 	/* FIXME: Extend the UAPI_DEF_OBJ_NEEDS_FN stuff.. */
 	if (!ib_dev->ops.query_port)

drivers/infiniband/hw/hfi1/file_ops.c

···
 		vmf = 1;
 		break;
 	case STATUS:
-		if (flags & (unsigned long)(VM_WRITE | VM_EXEC)) {
+		if (flags & VM_WRITE) {
 			ret = -EPERM;
 			goto done;
 		}

drivers/infiniband/hw/hfi1/ud.c

···
 	    opcode == IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE) {
 		wc.ex.imm_data = packet->ohdr->u.ud.imm_data;
 		wc.wc_flags = IB_WC_WITH_IMM;
-		tlen -= sizeof(u32);
 	} else if (opcode == IB_OPCODE_UD_SEND_ONLY) {
 		wc.ex.imm_data = 0;
 		wc.wc_flags = 0;

drivers/infiniband/hw/hns/hns_roce_srq.c

···
 				   struct ib_udata *udata)
 {
 	struct hns_roce_dev *hr_dev = to_hr_dev(pd->device);
+	struct hns_roce_ib_create_srq_resp resp = {};
 	struct hns_roce_srq *srq;
 	int srq_desc_size;
 	int srq_buf_size;
···
 
 	srq->event = hns_roce_ib_srq_event;
 	srq->ibsrq.ext.xrc.srq_num = srq->srqn;
+	resp.srqn = srq->srqn;
 
 	if (udata) {
-		if (ib_copy_to_udata(udata, &srq->srqn, sizeof(__u32))) {
+		if (ib_copy_to_udata(udata, &resp,
+				     min(udata->outlen, sizeof(resp)))) {
 			ret = -EFAULT;
-			goto err_wrid;
+			goto err_srqc_alloc;
 		}
 	}
 
 	return &srq->ibsrq;
+
+err_srqc_alloc:
+	hns_roce_srq_free(hr_dev, srq);
 
 err_wrid:
 	kvfree(srq->wrid);

drivers/infiniband/hw/mlx4/mad.c

···
 
 	sqp_mad = (struct mlx4_mad_snd_buf *) (sqp->tx_ring[wire_tx_ix].buf.addr);
 	if (sqp->tx_ring[wire_tx_ix].ah)
-		rdma_destroy_ah(sqp->tx_ring[wire_tx_ix].ah, 0);
+		mlx4_ib_destroy_ah(sqp->tx_ring[wire_tx_ix].ah, 0);
 	sqp->tx_ring[wire_tx_ix].ah = ah;
 	ib_dma_sync_single_for_cpu(&dev->ib_dev,
 				   sqp->tx_ring[wire_tx_ix].buf.map,
···
 		if (wc.status == IB_WC_SUCCESS) {
 			switch (wc.opcode) {
 			case IB_WC_SEND:
-				rdma_destroy_ah(sqp->tx_ring[wc.wr_id &
+				mlx4_ib_destroy_ah(sqp->tx_ring[wc.wr_id &
 					      (MLX4_NUM_TUNNEL_BUFS - 1)].ah, 0);
 				sqp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
 					= NULL;
···
 				 " status = %d, wrid = 0x%llx\n",
 				 ctx->slave, wc.status, wc.wr_id);
 			if (!MLX4_TUN_IS_RECV(wc.wr_id)) {
-				rdma_destroy_ah(sqp->tx_ring[wc.wr_id &
+				mlx4_ib_destroy_ah(sqp->tx_ring[wc.wr_id &
 					      (MLX4_NUM_TUNNEL_BUFS - 1)].ah, 0);
 				sqp->tx_ring[wc.wr_id & (MLX4_NUM_TUNNEL_BUFS - 1)].ah
 					= NULL;

drivers/infiniband/hw/mlx5/flow.c

···
 		UAPI_DEF_IS_OBJ_SUPPORTED(flow_is_supported)),
 	UAPI_DEF_CHAIN_OBJ_TREE(
 		UVERBS_OBJECT_FLOW,
-		&mlx5_ib_fs,
-		UAPI_DEF_IS_OBJ_SUPPORTED(flow_is_supported)),
+		&mlx5_ib_fs),
 	UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_FLOW_ACTION,
 				&mlx5_ib_flow_actions),
 	{},

drivers/infiniband/hw/mlx5/odp.c

···
 	struct prefetch_mr_work *w =
 		container_of(work, struct prefetch_mr_work, work);
 
-	if (w->dev->ib_dev.reg_state == IB_DEV_REGISTERED)
+	if (ib_device_try_get(&w->dev->ib_dev)) {
 		mlx5_ib_prefetch_sg_list(w->dev, w->pf_flags, w->sg_list,
 					 w->num_sge);
-
+		ib_device_put(&w->dev->ib_dev);
+	}
+	put_device(&w->dev->ib_dev.dev);
 	kfree(w);
 }
 
···
 		return mlx5_ib_prefetch_sg_list(dev, pf_flags, sg_list,
 						num_sge);
 
-	if (dev->ib_dev.reg_state != IB_DEV_REGISTERED)
-		return -ENODEV;
-
 	work = kvzalloc(struct_size(work, sg_list, num_sge), GFP_KERNEL);
 	if (!work)
 		return -ENOMEM;
 
 	memcpy(work->sg_list, sg_list, num_sge * sizeof(struct ib_sge));
 
+	get_device(&dev->ib_dev.dev);
 	work->dev = dev;
 	work->pf_flags = pf_flags;
 	work->num_sge = num_sge;

drivers/infiniband/hw/mlx5/qp.c

···
 		}
 
 		if (!check_flags_mask(ucmd.flags,
+				      MLX5_QP_FLAG_ALLOW_SCATTER_CQE |
+				      MLX5_QP_FLAG_BFREG_INDEX |
+				      MLX5_QP_FLAG_PACKET_BASED_CREDIT_MODE |
+				      MLX5_QP_FLAG_SCATTER_CQE |
 				      MLX5_QP_FLAG_SIGNATURE |
-					      MLX5_QP_FLAG_SCATTER_CQE |
-					      MLX5_QP_FLAG_TUNNEL_OFFLOADS |
-					      MLX5_QP_FLAG_BFREG_INDEX |
-					      MLX5_QP_FLAG_TYPE_DCT |
-					      MLX5_QP_FLAG_TYPE_DCI |
-					      MLX5_QP_FLAG_ALLOW_SCATTER_CQE |
-					      MLX5_QP_FLAG_PACKET_BASED_CREDIT_MODE))
+				      MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_MC |
+				      MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_UC |
+				      MLX5_QP_FLAG_TUNNEL_OFFLOADS |
+				      MLX5_QP_FLAG_TYPE_DCI |
+				      MLX5_QP_FLAG_TYPE_DCT))
 			return -EINVAL;
 
 		err = get_qp_user_index(to_mucontext(pd->uobject->context),

drivers/infiniband/hw/qib/qib_ud.c

···
 	    opcode == IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE) {
 		wc.ex.imm_data = ohdr->u.ud.imm_data;
 		wc.wc_flags = IB_WC_WITH_IMM;
-		tlen -= sizeof(u32);
 	} else if (opcode == IB_OPCODE_UD_SEND_ONLY) {
 		wc.ex.imm_data = 0;
 		wc.wc_flags = 0;

drivers/infiniband/sw/rdmavt/qp.c

···
 			goto op_err;
 		if (!ret)
 			goto rnr_nak;
+		if (wqe->length > qp->r_len)
+			goto inv_err;
 		break;
 
 	case IB_WR_RDMA_WRITE_WITH_IMM:
···
 	goto err;
 
 inv_err:
-	send_status = IB_WC_REM_INV_REQ_ERR;
+	send_status =
+		sqp->ibqp.qp_type == IB_QPT_RC ?
+			IB_WC_REM_INV_REQ_ERR :
+			IB_WC_SUCCESS;
 	wc.status = IB_WC_LOC_QP_OP_ERR;
 	goto err;
 

drivers/infiniband/ulp/ipoib/ipoib.h

···
 	struct list_head     list;
 	struct net_device   *dev;
 	struct ipoib_neigh  *neigh;
-	struct ipoib_path   *path;
 	struct ipoib_tx_buf *tx_ring;
 	unsigned int	     tx_head;
 	unsigned int	     tx_tail;

drivers/infiniband/ulp/ipoib/ipoib_cm.c

···
 
 	neigh->cm = tx;
 	tx->neigh = neigh;
-	tx->path = path;
 	tx->dev = dev;
 	list_add(&tx->list, &priv->cm.start_list);
 	set_bit(IPOIB_FLAG_INITIALIZED, &tx->flags);
···
 				neigh->daddr + QPN_AND_OPTIONS_OFFSET);
 			goto free_neigh;
 		}
-		memcpy(&pathrec, &p->path->pathrec, sizeof(pathrec));
+		memcpy(&pathrec, &path->pathrec, sizeof(pathrec));
 
 		spin_unlock_irqrestore(&priv->lock, flags);
 		netif_tx_unlock_bh(dev);

drivers/input/serio/olpc_apsp.c

···
 #include <linux/of.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
-#include <linux/clk.h>
 
 /*
  * The OLPC XO-1.75 and XO-4 laptops do not have a hardware PS/2 controller.
···
 	struct serio *kbio;
 	struct serio *padio;
 	void __iomem *base;
-	struct clk *clk;
 	int open_count;
 	int irq;
 };
···
 	struct olpc_apsp *priv = port->port_data;
 	unsigned int tmp;
 	unsigned long l;
-	int error;
 
 	if (priv->open_count++ == 0) {
-		error = clk_prepare_enable(priv->clk);
-		if (error)
-			return error;
-
 		l = readl(priv->base + COMMAND_FIFO_STATUS);
 		if (!(l & CMD_STS_MASK)) {
 			dev_err(priv->dev, "SP cannot accept commands.\n");
-			clk_disable_unprepare(priv->clk);
 			return -EIO;
 		}
 
···
 		/* Disable interrupt 0 */
 		tmp = readl(priv->base + PJ_INTERRUPT_MASK);
 		writel(tmp | INT_0, priv->base + PJ_INTERRUPT_MASK);
-
-		clk_disable_unprepare(priv->clk);
 	}
 }
 
···
 	priv->irq = platform_get_irq(pdev, 0);
 	if (priv->irq < 0)
 		return priv->irq;
-
-	priv->clk = devm_clk_get(&pdev->dev, "sp");
-	if (IS_ERR(priv->clk))
-		return PTR_ERR(priv->clk);
 
 	/* KEYBOARD */
 	kb_serio = kzalloc(sizeof(struct serio), GFP_KERNEL);

drivers/iommu/amd_iommu.c

···
 
 static void do_detach(struct iommu_dev_data *dev_data)
 {
+	struct protection_domain *domain = dev_data->domain;
 	struct amd_iommu *iommu;
 	u16 alias;
 
 	iommu = amd_iommu_rlookup_table[dev_data->devid];
 	alias = dev_data->alias;
-
-	/* decrease reference counters */
-	dev_data->domain->dev_iommu[iommu->index] -= 1;
-	dev_data->domain->dev_cnt                 -= 1;
 
 	/* Update data structures */
 	dev_data->domain = NULL;
···
 
 	/* Flush the DTE entry */
 	device_flush_dte(dev_data);
+
+	/* Flush IOTLB */
+	domain_flush_tlb_pde(domain);
+
+	/* Wait for the flushes to finish */
+	domain_flush_complete(domain);
+
+	/* decrease reference counters - needs to happen after the flushes */
+	domain->dev_iommu[iommu->index] -= 1;
+	domain->dev_cnt                 -= 1;
 }
 
 /*
···
 			bus_addr  = address + s->dma_address + (j << PAGE_SHIFT);
 			iommu_unmap_page(domain, bus_addr, PAGE_SIZE);
 
-			if (--mapped_pages)
+			if (--mapped_pages == 0)
 				goto out_free_iova;
 		}
 	}
 
 out_free_iova:
-	free_iova_fast(&dma_dom->iovad, address, npages);
+	free_iova_fast(&dma_dom->iovad, address >> PAGE_SHIFT, npages);
 
 out_err:
 	return 0;

drivers/iommu/intel-iommu.c

···
 static int dmar_forcedac;
 static int intel_iommu_strict;
 static int intel_iommu_superpage = 1;
-static int intel_iommu_sm = 1;
+static int intel_iommu_sm;
 static int iommu_identity_mapping;
 
 #define IDENTMAP_ALL		1
···
 		} else if (!strncmp(str, "sp_off", 6)) {
 			pr_info("Disable supported super page\n");
 			intel_iommu_superpage = 0;
-		} else if (!strncmp(str, "sm_off", 6)) {
-			pr_info("Intel-IOMMU: disable scalable mode support\n");
-			intel_iommu_sm = 0;
+		} else if (!strncmp(str, "sm_on", 5)) {
+			pr_info("Intel-IOMMU: scalable mode supported\n");
+			intel_iommu_sm = 1;
 		} else if (!strncmp(str, "tboot_noforce", 13)) {
 			printk(KERN_INFO
 				"Intel-IOMMU: not forcing on after tboot. This could expose security risk for tboot\n");
···
 	struct iommu_resv_region *entry, *next;
 
 	list_for_each_entry_safe(entry, next, head, list) {
-		if (entry->type == IOMMU_RESV_RESERVED)
+		if (entry->type == IOMMU_RESV_MSI)
 			kfree(entry);
 	}
 }

drivers/iommu/mtk_iommu_v1.c

···
 		iommu_spec.args_count = count;
 
 		mtk_iommu_create_mapping(dev, &iommu_spec);
+
+		/* dev->iommu_fwspec might have changed */
+		fwspec = dev_iommu_fwspec_get(dev);
+
 		of_node_put(iommu_spec.np);
 	}
 

drivers/irqchip/irq-gic-v3-its.c

···
  * The ITS structure - contains most of the infrastructure, with the
  * top-level MSI domain, the command queue, the collections, and the
  * list of devices writing to it.
+ *
+ * dev_alloc_lock has to be taken for device allocations, while the
+ * spinlock must be taken to parse data structures such as the device
+ * list.
  */
 struct its_node {
 	raw_spinlock_t		lock;
+	struct mutex		dev_alloc_lock;
 	struct list_head	entry;
 	void __iomem		*base;
 	phys_addr_t		phys_base;
···
 	void			*itt;
 	u32			nr_ites;
 	u32			device_id;
+	bool			shared;
 };
 
 static struct {
···
 		nr_irqs /= 2;
 	} while (nr_irqs > 0);
 
+	if (!nr_irqs)
+		err = -ENOSPC;
+
 	if (err)
 		goto out;
 
···
 	return 0;
 }
 
+static u64 its_clear_vpend_valid(void __iomem *vlpi_base)
+{
+	u32 count = 1000000;	/* 1s! */
+	bool clean;
+	u64 val;
+
+	val = gits_read_vpendbaser(vlpi_base + GICR_VPENDBASER);
+	val &= ~GICR_VPENDBASER_Valid;
+	gits_write_vpendbaser(val, vlpi_base + GICR_VPENDBASER);
+
+	do {
+		val = gits_read_vpendbaser(vlpi_base + GICR_VPENDBASER);
+		clean = !(val & GICR_VPENDBASER_Dirty);
+		if (!clean) {
+			count--;
+			cpu_relax();
+			udelay(1);
+		}
+	} while (!clean && count);
+
+	return val;
+}
+
 static void its_cpu_init_lpis(void)
 {
 	void __iomem *rbase = gic_data_rdist_rd_base();
···
 	val = readl_relaxed(rbase + GICR_CTLR);
 	val |= GICR_CTLR_ENABLE_LPIS;
 	writel_relaxed(val, rbase + GICR_CTLR);
+
+	if (gic_rdists->has_vlpis) {
+		void __iomem *vlpi_base = gic_data_rdist_vlpi_base();
+
+		/*
+		 * It's possible for CPU to receive VLPIs before it is
+		 * sheduled as a vPE, especially for the first CPU, and the
+		 * VLPI with INTID larger than 2^(IDbits+1) will be considered
+		 * as out of range and dropped by GIC.
+		 * So we initialize IDbits to known value to avoid VLPI drop.
+		 */
+		val = (LPI_NRBITS - 1) & GICR_VPROPBASER_IDBITS_MASK;
+		pr_debug("GICv4: CPU%d: Init IDbits to 0x%llx for GICR_VPROPBASER\n",
+			smp_processor_id(), val);
+		gits_write_vpropbaser(val, vlpi_base + GICR_VPROPBASER);
+
+		/*
+		 * Also clear Valid bit of GICR_VPENDBASER, in case some
+		 * ancient programming gets left in and has possibility of
+		 * corrupting memory.
+		 */
+		val = its_clear_vpend_valid(vlpi_base);
+		WARN_ON(val & GICR_VPENDBASER_Dirty);
+	}
 
 	/* Make sure the GIC has seen the above */
 	dsb(sy);
···
 	struct its_device *its_dev;
 	struct msi_domain_info *msi_info;
 	u32 dev_id;
+	int err = 0;
 
 	/*
 	 * We ignore "dev" entierely, and rely on the dev_id that has
···
 		return -EINVAL;
 	}
 
+	mutex_lock(&its->dev_alloc_lock);
 	its_dev = its_find_device(its, dev_id);
 	if (its_dev) {
 		/*
···
 		 * another alias (PCI bridge of some sort). No need to
 		 * create the device.
 		 */
+		its_dev->shared = true;
 		pr_debug("Reusing ITT for devID %x\n", dev_id);
 		goto out;
 	}
 
 	its_dev = its_create_device(its, dev_id, nvec, true);
-	if (!its_dev)
-		return -ENOMEM;
+	if (!its_dev) {
+		err = -ENOMEM;
+		goto out;
+	}
 
 	pr_debug("ITT %d entries, %d bits\n", nvec, ilog2(nvec));
 out:
+	mutex_unlock(&its->dev_alloc_lock);
 	info->scratchpad[0].ptr = its_dev;
-	return 0;
+	return err;
 }
 
 static struct msi_domain_ops its_msi_domain_ops = {
···
 {
 	struct irq_data *d = irq_domain_get_irq_data(domain, virq);
 	struct its_device *its_dev = irq_data_get_irq_chip_data(d);
+	struct its_node *its = its_dev->its;
 	int i;
 
 	for (i = 0; i < nr_irqs; i++) {
···
 		irq_domain_reset_irq_data(data);
 	}
 
-	/* If all interrupts have been freed, start mopping the floor */
-	if (bitmap_empty(its_dev->event_map.lpi_map,
+	mutex_lock(&its->dev_alloc_lock);
+
+	/*
+	 * If all interrupts have been freed, start mopping the
+	 * floor. This is conditionned on the device not being shared.
+	 */
+	if (!its_dev->shared &&
+	    bitmap_empty(its_dev->event_map.lpi_map,
 			 its_dev->event_map.nr_lpis)) {
 		its_lpi_free(its_dev->event_map.lpi_map,
 			     its_dev->event_map.lpi_base,
···
 		its_send_mapd(its_dev, 0);
 		its_free_device(its_dev);
 	}
+
+	mutex_unlock(&its->dev_alloc_lock);
 
 	irq_domain_free_irqs_parent(domain, virq, nr_irqs);
 }
···
 static void its_vpe_deschedule(struct its_vpe *vpe)
 {
 	void __iomem *vlpi_base = gic_data_rdist_vlpi_base();
-	u32 count = 1000000;	/* 1s! */
-	bool clean;
 	u64 val;
 
-	/* We're being scheduled out */
-	val = gits_read_vpendbaser(vlpi_base + GICR_VPENDBASER);
-	val &= ~GICR_VPENDBASER_Valid;
-	gits_write_vpendbaser(val, vlpi_base + GICR_VPENDBASER);
+	val = its_clear_vpend_valid(vlpi_base);
 
-	do {
-		val = gits_read_vpendbaser(vlpi_base + GICR_VPENDBASER);
-		clean = !(val & GICR_VPENDBASER_Dirty);
-		if (!clean) {
-			count--;
-			cpu_relax();
-			udelay(1);
-		}
-	} while (!clean && count);
-
-	if (unlikely(!clean && !count)) {
+	if (unlikely(val & GICR_VPENDBASER_Dirty)) {
 		pr_err_ratelimited("ITS virtual pending table not cleaning\n");
 		vpe->idai = false;
 		vpe->pending_last = true;
···
 	}
 
 	raw_spin_lock_init(&its->lock);
+	mutex_init(&its->dev_alloc_lock);
 	INIT_LIST_HEAD(&its->entry);
 	INIT_LIST_HEAD(&its->its_device_list);
 	typer = gic_read_typer(its_base + GITS_TYPER);

drivers/irqchip/irq-mmp.c

···
 #define SEL_INT_PENDING		(1 << 6)
 #define SEL_INT_NUM_MASK	0x3f
 
+#define MMP2_ICU_INT_ROUTE_PJ4_IRQ	(1 << 5)
+#define MMP2_ICU_INT_ROUTE_PJ4_FIQ	(1 << 6)
+
 struct icu_chip_data {
 	int			nr_irqs;
 	unsigned int		virq_base;
···
 static const struct mmp_intc_conf mmp2_conf = {
 	.conf_enable	= 0x20,
 	.conf_disable	= 0x0,
-	.conf_mask	= 0x7f,
+	.conf_mask	= MMP2_ICU_INT_ROUTE_PJ4_IRQ |
+			  MMP2_ICU_INT_ROUTE_PJ4_FIQ,
 };
 
 static void __exception_irq_entry mmp_handle_irq(struct pt_regs *regs)

drivers/irqchip/irq-xtensa-mx.c

···
 	unsigned int mask = 1u << d->hwirq;
 
 	if (mask & (XCHAL_INTTYPE_MASK_EXTERN_EDGE |
-				XCHAL_INTTYPE_MASK_EXTERN_LEVEL)) {
-		set_er(1u << (xtensa_get_ext_irq_no(d->hwirq) -
-					HW_IRQ_MX_BASE), MIENG);
-	} else {
-		mask = __this_cpu_read(cached_irq_mask) & ~mask;
-		__this_cpu_write(cached_irq_mask, mask);
-		xtensa_set_sr(mask, intenable);
+		    XCHAL_INTTYPE_MASK_EXTERN_LEVEL)) {
+		unsigned int ext_irq = xtensa_get_ext_irq_no(d->hwirq);
+
+		if (ext_irq >= HW_IRQ_MX_BASE) {
+			set_er(1u << (ext_irq - HW_IRQ_MX_BASE), MIENG);
+			return;
+		}
 	}
+	mask = __this_cpu_read(cached_irq_mask) & ~mask;
+	__this_cpu_write(cached_irq_mask, mask);
+	xtensa_set_sr(mask, intenable);
 }
 
 static void xtensa_mx_irq_unmask(struct irq_data *d)
···
 	unsigned int mask = 1u << d->hwirq;
 
 	if (mask & (XCHAL_INTTYPE_MASK_EXTERN_EDGE |
-				XCHAL_INTTYPE_MASK_EXTERN_LEVEL)) {
-		set_er(1u << (xtensa_get_ext_irq_no(d->hwirq) -
-					HW_IRQ_MX_BASE), MIENGSET);
-	} else {
-		mask |= __this_cpu_read(cached_irq_mask);
-		__this_cpu_write(cached_irq_mask, mask);
-		xtensa_set_sr(mask, intenable);
+		    XCHAL_INTTYPE_MASK_EXTERN_LEVEL)) {
+		unsigned int ext_irq = xtensa_get_ext_irq_no(d->hwirq);
+
+		if (ext_irq >= HW_IRQ_MX_BASE) {
+			set_er(1u << (ext_irq - HW_IRQ_MX_BASE), MIENGSET);
+			return;
+		}
 	}
+	mask |= __this_cpu_read(cached_irq_mask);
+	__this_cpu_write(cached_irq_mask, mask);
+	xtensa_set_sr(mask, intenable);
 }
 
 static void xtensa_mx_irq_enable(struct irq_data *d)
···
 
 static int xtensa_mx_irq_retrigger(struct irq_data *d)
 {
-	xtensa_set_sr(1 << d->hwirq, intset);
+	unsigned int mask = 1u << d->hwirq;
+
+	if (WARN_ON(mask & ~XCHAL_INTTYPE_MASK_SOFTWARE))
+		return 0;
+	xtensa_set_sr(mask, intset);
 	return 1;
 }
 

drivers/irqchip/irq-xtensa-pic.c

···
 
 static int xtensa_irq_retrigger(struct irq_data *d)
 {
-	xtensa_set_sr(1 << d->hwirq, intset);
+	unsigned int mask = 1u << d->hwirq;
+
+	if (WARN_ON(mask & ~XCHAL_INTTYPE_MASK_SOFTWARE))
+		return 0;
+	xtensa_set_sr(mask, intset);
 	return 1;
 }
 

drivers/isdn/mISDN/timerdev.c

···
 	spin_lock_irqsave(&timer->dev->lock, flags);
 	if (timer->id >= 0)
 		list_move_tail(&timer->list, &timer->dev->expired);
-	spin_unlock_irqrestore(&timer->dev->lock, flags);
 	wake_up_interruptible(&timer->dev->wait);
+	spin_unlock_irqrestore(&timer->dev->lock, flags);
 }
 
 static int

drivers/md/dm-rq.c

···
 static void rq_completed(struct mapped_device *md)
 {
 	/* nudge anyone waiting on suspend queue */
-	if (unlikely(waitqueue_active(&md->wait)))
+	if (unlikely(wq_has_sleeper(&md->wait)))
 		wake_up(&md->wait);
 
 	/*

drivers/md/dm.c

···
 				    true, duration, &io->stats_aux);
 
 	/* nudge anyone waiting on suspend queue */
-	if (unlikely(waitqueue_active(&md->wait)))
+	if (unlikely(wq_has_sleeper(&md->wait)))
 		wake_up(&md->wait);
 }
 
···
 			return r;
 	}
 
-	bio_trim(clone, sector - clone->bi_iter.bi_sector, len);
+	bio_advance(clone, to_bytes(sector - clone->bi_iter.bi_sector));
+	clone->bi_iter.bi_size = to_bytes(len);
+
+	if (bio_integrity(bio))
+		bio_integrity_trim(clone);
 
 	return 0;
 }

drivers/md/raid5-cache.c

···
 }
 
 static struct stripe_head *
-r5c_recovery_alloc_stripe(struct r5conf *conf,
-			  sector_t stripe_sect)
+r5c_recovery_alloc_stripe(
+		struct r5conf *conf,
+		sector_t stripe_sect,
+		int noblock)
 {
 	struct stripe_head *sh;
 
-	sh = raid5_get_active_stripe(conf, stripe_sect, 0, 1, 0);
+	sh = raid5_get_active_stripe(conf, stripe_sect, 0, noblock, 0);
 	if (!sh)
 		return NULL;  /* no more stripe available */
 
···
 						stripe_sect);
 
 		if (!sh) {
-			sh = r5c_recovery_alloc_stripe(conf, stripe_sect);
+			sh = r5c_recovery_alloc_stripe(conf, stripe_sect, 1);
 			/*
 			 * cannot get stripe from raid5_get_active_stripe
 			 * try replay some stripes
···
 				r5c_recovery_replay_stripes(
 					cached_stripe_list, ctx);
 				sh = r5c_recovery_alloc_stripe(
-					conf, stripe_sect);
+					conf, stripe_sect, 1);
 			}
 			if (!sh) {
+				int new_size = conf->min_nr_stripes * 2;
 				pr_debug("md/raid:%s: Increasing stripe cache size to %d to recovery data on journal.\n",
 					mdname(mddev),
-					conf->min_nr_stripes * 2);
-				raid5_set_cache_size(mddev,
-						     conf->min_nr_stripes * 2);
-				sh = r5c_recovery_alloc_stripe(conf,
-							       stripe_sect);
+					new_size);
+				ret = raid5_set_cache_size(mddev, new_size);
+				if (conf->min_nr_stripes <= new_size / 2) {
+					pr_err("md/raid:%s: Cannot increase cache size, ret=%d, new_size=%d, min_nr_stripes=%d, max_nr_stripes=%d\n",
+						mdname(mddev),
+						ret,
+						new_size,
+						conf->min_nr_stripes,
+						conf->max_nr_stripes);
+					return -ENOMEM;
+				}
+				sh = r5c_recovery_alloc_stripe(
+					conf, stripe_sect, 0);
 			}
 			if (!sh) {
 				pr_err("md/raid:%s: Cannot get enough stripes due to memory pressure. Recovery failed.\n",
-				       mdname(mddev));
+					mdname(mddev));
 				return -ENOMEM;
 			}
 			list_add_tail(&sh->lru, cached_stripe_list);

drivers/md/raid5.c

···
 int
 raid5_set_cache_size(struct mddev *mddev, int size)
 {
+	int result = 0;
 	struct r5conf *conf = mddev->private;
 
 	if (size <= 16 || size > 32768)
···
 
 	mutex_lock(&conf->cache_size_mutex);
 	while (size > conf->max_nr_stripes)
-		if (!grow_one_stripe(conf, GFP_KERNEL))
+		if (!grow_one_stripe(conf, GFP_KERNEL)) {
+			conf->min_nr_stripes = conf->max_nr_stripes;
+			result = -ENOMEM;
 			break;
+		}
 	mutex_unlock(&conf->cache_size_mutex);
 
-	return 0;
+	return result;
 }
 EXPORT_SYMBOL(raid5_set_cache_size);
 

drivers/mfd/Kconfig

···
 
 config MFD_TPS68470
 	bool "TI TPS68470 Power Management / LED chips"
-	depends on ACPI && I2C=y
+	depends on ACPI && PCI && I2C=y
 	select MFD_CORE
 	select REGMAP_I2C
 	select I2C_DESIGNWARE_PLATFORM

drivers/misc/mei/client.c

···
 	struct mei_cl_cb *cb, *next;
 
 	list_for_each_entry_safe(cb, next, head, list) {
-		if (cl == cb->cl)
+		if (cl == cb->cl) {
 			list_del_init(&cb->list);
+			if (cb->fop_type == MEI_FOP_READ)
+				mei_io_cb_free(cb);
+		}
 	}
 }
 

drivers/misc/mei/hw-me-regs.h

···
 #define MEI_DEV_ID_CNP_H      0xA360  /* Cannon Point H */
 #define MEI_DEV_ID_CNP_H_4    0xA364  /* Cannon Point H 4 (iTouch) */
 
+#define MEI_DEV_ID_ICP_LP     0x34E0  /* Ice Lake Point LP */
+
 /*
  * MEI HW Section
  */

drivers/misc/mei/pci-me.c

···
 	{MEI_PCI_DEVICE(MEI_DEV_ID_CNP_H, MEI_ME_PCH12_CFG)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_CNP_H_4, MEI_ME_PCH8_CFG)},
 
+	{MEI_PCI_DEVICE(MEI_DEV_ID_ICP_LP, MEI_ME_PCH12_CFG)},
+
 	/* required last entry */
 	{0, }
 };

drivers/misc/mic/vop/vop_main.c

···
  * @dc: Virtio device control
  * @vpdev: VOP device which is the parent for this virtio device
  * @vr: Buffer for accessing the VRING
- * @used: Buffer for used
+ * @used_virt: Virtual address of used ring
+ * @used: DMA address of used ring
  * @used_size: Size of the used buffer
  * @reset_done: Track whether VOP reset is complete
  * @virtio_cookie: Cookie returned upon requesting a interrupt
···
 	struct mic_device_ctrl __iomem *dc;
 	struct vop_device *vpdev;
 	void __iomem *vr[VOP_MAX_VRINGS];
+	void *used_virt[VOP_MAX_VRINGS];
 	dma_addr_t used[VOP_MAX_VRINGS];
 	int used_size[VOP_MAX_VRINGS];
 	struct completion reset_done;
···
 static void vop_del_vq(struct virtqueue *vq, int n)
 {
 	struct _vop_vdev *vdev = to_vopvdev(vq->vdev);
-	struct vring *vr = (struct vring *)(vq + 1);
 	struct vop_device *vpdev = vdev->vpdev;
 
 	dma_unmap_single(&vpdev->dev, vdev->used[n],
 			 vdev->used_size[n], DMA_BIDIRECTIONAL);
-	free_pages((unsigned long)vr->used, get_order(vdev->used_size[n]));
+	free_pages((unsigned long)vdev->used_virt[n],
+		   get_order(vdev->used_size[n]));
 	vring_del_virtqueue(vq);
 	vpdev->hw_ops->iounmap(vpdev, vdev->vr[n]);
 	vdev->vr[n] = NULL;
···
 
 	list_for_each_entry_safe(vq, n, &dev->vqs, list)
 		vop_del_vq(vq, idx++);
+}
+
+static struct virtqueue *vop_new_virtqueue(unsigned int index,
+				      unsigned int num,
+				      struct virtio_device *vdev,
+				      bool context,
+				      void *pages,
+				      bool (*notify)(struct virtqueue *vq),
+				      void (*callback)(struct virtqueue *vq),
+				      const char *name,
+				      void *used)
+{
+	bool weak_barriers = false;
+	struct vring vring;
+
+	vring_init(&vring, num, pages, MIC_VIRTIO_RING_ALIGN);
+	vring.used = used;
+
+	return __vring_new_virtqueue(index, vring, vdev, weak_barriers, context,
+				     notify, callback, name);
 }
 
 /*
···
 	struct _mic_vring_info __iomem *info;
 	void *used;
 	int vr_size, _vr_size, err, magic;
-	struct vring *vr;
 	u8 type = ioread8(&vdev->desc->type);
 
 	if (index >= ioread8(&vdev->desc->num_vq))
···
 		return ERR_PTR(-ENOMEM);
 	vdev->vr[index] = va;
 	memset_io(va, 0x0, _vr_size);
-	vq = vring_new_virtqueue(
-				index,
-				le16_to_cpu(config.num), MIC_VIRTIO_RING_ALIGN,
-				dev,
-				false,
-				ctx,
-				(void __force *)va, vop_notify, callback, name);
-	if (!vq) {
-		err = -ENOMEM;
-		goto unmap;
-	}
+
 	info = va + _vr_size;
 	magic = ioread32(&info->magic);
 
···
 		goto unmap;
 	}
 
-	/* Allocate and reassign used ring now */
 	vdev->used_size[index] = PAGE_ALIGN(sizeof(__u16) * 3 +
 					     sizeof(struct vring_used_elem) *
 					     le16_to_cpu(config.num));
 	used = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
 					get_order(vdev->used_size[index]));
+	vdev->used_virt[index] = used;
 	if (!used) {
 		err = -ENOMEM;
 		dev_err(_vop_dev(vdev), "%s %d err %d\n",
 			__func__, __LINE__, err);
-		goto del_vq;
+		goto unmap;
 	}
+
+	vq = vop_new_virtqueue(index, le16_to_cpu(config.num), dev, ctx,
+			       (void __force *)va, vop_notify, callback,
+			       name, used);
+	if (!vq) {
+		err = -ENOMEM;
+		goto free_used;
+	}
+
 	vdev->used[index] = dma_map_single(&vpdev->dev, used,
 					    vdev->used_size[index],
 					    DMA_BIDIRECTIONAL);
···
 		err = -ENOMEM;
 		dev_err(_vop_dev(vdev), "%s %d err %d\n",
 			__func__, __LINE__, err);
-		goto free_used;
+		goto del_vq;
 	}
 	writeq(vdev->used[index], &vqconfig->used_address);
-	/*
-	 * To reassign the used ring here we are directly accessing
-	 * struct vring_virtqueue which is a private data structure
-	 * in virtio_ring.c. At the minimum, a BUILD_BUG_ON() in
-	 * vring_new_virtqueue() would ensure that
-	 *  (&vq->vring == (struct vring *) (&vq->vq + 1));
-	 */
-	vr = (struct vring *)(vq + 1);
-	vr->used = used;
 
 	vq->priv = vdev;
 	return vq;
+del_vq:
+	vring_del_virtqueue(vq);
 free_used:
 	free_pages((unsigned long)used,
 		   get_order(vdev->used_size[index]));
-del_vq:
-	vring_del_virtqueue(vq);
 unmap:
 	vpdev->hw_ops->iounmap(vpdev, vdev->vr[index]);
 	return ERR_PTR(err);
···
 	int ret = -1;
 
 	if (ioread8(&dc->config_change) == MIC_VIRTIO_PARAM_DEV_REMOVE) {
+		struct device *dev = get_device(&vdev->vdev.dev);
+
 		dev_dbg(&vpdev->dev,
 			"%s %d config_change %d type %d vdev %p\n",
 			__func__, __LINE__,
···
 		iowrite8(-1, &dc->h2c_vdev_db);
 		if (status & VIRTIO_CONFIG_S_DRIVER_OK)
 			wait_for_completion(&vdev->reset_done);
-		put_device(&vdev->vdev.dev);
+		put_device(dev);
 		iowrite8(1, &dc->guest_ack);
 		dev_dbg(&vpdev->dev, "%s %d guest_ack %d\n",
 			__func__, __LINE__, ioread8(&dc->guest_ack));

drivers/mmc/host/bcm2835.c

···
 
 err:
 	dev_dbg(dev, "%s -> err %d\n", __func__, ret);
+	if (host->dma_chan_rxtx)
+		dma_release_channel(host->dma_chan_rxtx);
 	mmc_free_host(mmc);
 
 	return ret;

drivers/mmc/host/mtk-sd.c

···
 
 	if (timing == MMC_TIMING_MMC_HS400 &&
 	    host->dev_comp->hs400_tune)
-		sdr_set_field(host->base + PAD_CMD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_CMDRRDLY,
 			      host->hs400_cmd_int_delay);
 	dev_dbg(host->dev, "sclk: %d, timing: %d\n", host->mmc->actual_clock,

drivers/mtd/mtdpart.c

···
 		/* let's register it anyway to preserve ordering */
 		slave->offset = 0;
 		slave->mtd.size = 0;
+
+		/* Initialize ->erasesize to make add_mtd_device() happy. */
+		slave->mtd.erasesize = parent->erasesize;
+
 		printk(KERN_ERR"mtd: partition \"%s\" is out of reach -- disabled\n",
 			part->name);
 		goto out_register;
···
 	mutex_unlock(&mtd_partitions_mutex);
 
 	free_partition(new);
-	pr_info("%s:%i\n", __func__, __LINE__);
 
 	return ret;
 }

drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c

···
 
 	/*
 	 * Reset BCH here, too. We got failures otherwise :(
-	 * See later BCH reset for explanation of MX23 handling
+	 * See later BCH reset for explanation of MX23 and MX28 handling
 	 */
-	ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MX23(this));
+	ret = gpmi_reset_block(r->bch_regs,
+			       GPMI_IS_MX23(this) || GPMI_IS_MX28(this));
 	if (ret)
 		goto err_out;
 
···
 	/*
 	* Due to erratum #2847 of the MX23, the BCH cannot be soft reset on this
 	* chip, otherwise it will lock up. So we skip resetting BCH on the MX23.
-	* On the other hand, the MX28 needs the reset, because one case has been
-	* seen where the BCH produced ECC errors constantly after 10000
-	* consecutive reboots. The latter case has not been seen on the MX23
-	* yet, still we don't know if it could happen there as well.
+	* and MX28.
 	*/
-	ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MX23(this));
+	ret = gpmi_reset_block(r->bch_regs,
+			       GPMI_IS_MX23(this) || GPMI_IS_MX28(this));
 	if (ret)
 		goto err_out;
 

drivers/mtd/nand/raw/nand_base.c

···
 
 /**
  * nand_fill_oob - [INTERN] Transfer client buffer to oob
+ * @chip: NAND chip object
  * @oob: oob data buffer
  * @len: oob data write length
  * @ops: oob ops structure

drivers/mtd/nand/raw/nand_bbt.c

···
 
 /**
  * read_bbt - [GENERIC] Read the bad block table starting from page
- * @chip: NAND chip object
+ * @this: NAND chip object
  * @buf: temporary buffer
  * @page: the starting page
  * @num: the number of bbt descriptors to read

drivers/mtd/nand/spi/core.c

···
 	struct nand_device *nand = spinand_to_nand(spinand);
 	struct mtd_info *mtd = nanddev_to_mtd(nand);
 	struct nand_page_io_req adjreq = *req;
-	unsigned int nbytes = 0;
-	void *buf = NULL;
+	void *buf = spinand->databuf;
+	unsigned int nbytes;
 	u16 column = 0;
 	int ret;
 
-	memset(spinand->databuf, 0xff,
-	       nanddev_page_size(nand) +
-	       nanddev_per_page_oobsize(nand));
+	/*
+	 * Looks like PROGRAM LOAD (AKA write cache) does not necessarily reset
+	 * the cache content to 0xFF (depends on vendor implementation), so we
+	 * must fill the page cache entirely even if we only want to program
+	 * the data portion of the page, otherwise we might corrupt the BBM or
+	 * user data previously programmed in OOB area.
+	 */
+	nbytes = nanddev_page_size(nand) + nanddev_per_page_oobsize(nand);
+	memset(spinand->databuf, 0xff, nbytes);
+	adjreq.dataoffs = 0;
+	adjreq.datalen = nanddev_page_size(nand);
+	adjreq.databuf.out = spinand->databuf;
+	adjreq.ooblen = nanddev_per_page_oobsize(nand);
+	adjreq.ooboffs = 0;
+	adjreq.oobbuf.out = spinand->oobbuf;
 
-	if (req->datalen) {
+	if (req->datalen)
 		memcpy(spinand->databuf + req->dataoffs, req->databuf.out,
 		       req->datalen);
-		adjreq.dataoffs = 0;
-		adjreq.datalen = nanddev_page_size(nand);
-		adjreq.databuf.out = spinand->databuf;
-		nbytes = adjreq.datalen;
-		buf = spinand->databuf;
-	}
 
 	if (req->ooblen) {
 		if (req->mode == MTD_OPS_AUTO_OOB)
···
 		else
 			memcpy(spinand->oobbuf + req->ooboffs, req->oobbuf.out,
 			       req->ooblen);
-
-		adjreq.ooblen = nanddev_per_page_oobsize(nand);
-		adjreq.ooboffs = 0;
-		nbytes += nanddev_per_page_oobsize(nand);
-		if (!buf) {
-			buf = spinand->oobbuf;
-			column = nanddev_page_size(nand);
-		}
 	}
 
 	spinand_cache_op_adjust_colum(spinand, &adjreq, &column);
···
 
 		/*
 		 * We need to use the RANDOM LOAD CACHE operation if there's
-		 * more than one iteration, because the LOAD operation resets
-		 * the cache to 0xff.
+		 * more than one iteration, because the LOAD operation might
+		 * reset the cache to 0xff.
 		 */
 		if (nbytes) {
 			column = op.addr.val;
···
 	for (i = 0; i < nand->memorg.ntargets; i++) {
 		ret = spinand_select_target(spinand, i);
 		if (ret)
-			goto err_free_bufs;
+			goto err_manuf_cleanup;
 
 		ret = spinand_lock_block(spinand, BL_ALL_UNLOCKED);
 		if (ret)
-			goto err_free_bufs;
+			goto err_manuf_cleanup;
 	}
 
 	ret = nanddev_init(nand, &spinand_ops, THIS_MODULE);

drivers/net/caif/caif_serial.c

···
 		if (skb->len == 0) {
 			struct sk_buff *tmp = skb_dequeue(&ser->head);
 			WARN_ON(tmp != skb);
-			if (in_interrupt())
-				dev_kfree_skb_irq(skb);
-			else
-				kfree_skb(skb);
+			dev_consume_skb_any(skb);
 		}
 	}
 	/* Send flow off if queue is empty */

drivers/net/dsa/b53/b53_srab.c

···
 	/* Clear all pending interrupts */
 	writel(0xffffffff, priv->regs + B53_SRAB_INTR);
 
-	if (dev->pdata && dev->pdata->chip_id != BCM58XX_DEVICE_ID)
-		return;
-
 	for (i = 0; i < B53_N_PORTS; i++) {
 		port = &priv->port_intrs[i];
 

drivers/net/dsa/mv88e6xxx/global1_atu.c

···
 {
 	struct mv88e6xxx_chip *chip = dev_id;
 	struct mv88e6xxx_atu_entry entry;
+	int spid;
 	int err;
 	u16 val;
 
···
 	if (err)
 		goto out;
 
+	spid = entry.state;
+
 	if (val & MV88E6XXX_G1_ATU_OP_AGE_OUT_VIOLATION) {
 		dev_err_ratelimited(chip->dev,
 				    "ATU age out violation for %pM\n",
···
 
 	if (val & MV88E6XXX_G1_ATU_OP_MEMBER_VIOLATION) {
 		dev_err_ratelimited(chip->dev,
-				    "ATU member violation for %pM portvec %x\n",
-				    entry.mac, entry.portvec);
-		chip->ports[entry.portvec].atu_member_violation++;
+				    "ATU member violation for %pM portvec %x spid %d\n",
+				    entry.mac, entry.portvec, spid);
+		chip->ports[spid].atu_member_violation++;
 	}
 
 	if (val & MV88E6XXX_G1_ATU_OP_MISS_VIOLATION) {
 		dev_err_ratelimited(chip->dev,
-				    "ATU miss violation for %pM portvec %x\n",
-				    entry.mac, entry.portvec);
-		chip->ports[entry.portvec].atu_miss_violation++;
+				    "ATU miss violation for %pM portvec %x spid %d\n",
+				    entry.mac, entry.portvec, spid);
+		chip->ports[spid].atu_miss_violation++;
 	}
 
 	if (val & MV88E6XXX_G1_ATU_OP_FULL_VIOLATION) {
 		dev_err_ratelimited(chip->dev,
-				    "ATU full violation for %pM portvec %x\n",
-				    entry.mac, entry.portvec);
-		chip->ports[entry.portvec].atu_full_violation++;
+				    "ATU full violation for %pM portvec %x spid %d\n",
+				    entry.mac, entry.portvec, spid);
+		chip->ports[spid].atu_full_violation++;
 	}
 	mutex_unlock(&chip->reg_lock);
 

drivers/net/dsa/mv88e6xxx/serdes.c

···
 	if (port < 9)
 		return 0;
 
-	return mv88e6390_serdes_irq_setup(chip, port);
+	return mv88e6390x_serdes_irq_setup(chip, port);
 }
 
 void mv88e6390x_serdes_irq_free(struct mv88e6xxx_chip *chip, int port)

drivers/net/ethernet/alteon/acenic.c

···
 		if (skb) {
 			dev->stats.tx_packets++;
 			dev->stats.tx_bytes += skb->len;
-			dev_kfree_skb_irq(skb);
+			dev_consume_skb_irq(skb);
 			info->skb = NULL;
 		}
 

drivers/net/ethernet/altera/altera_msgdma.c

···
 			& 0xffff;
 
 	if (inuse) { /* Tx FIFO is not empty */
-		ready = priv->tx_prod - priv->tx_cons - inuse - 1;
+		ready = max_t(int,
+			      priv->tx_prod - priv->tx_cons - inuse - 1, 0);
 	} else {
 		/* Check for buffered last packet */
 		status = csrrd32(priv->tx_dma_csr, msgdma_csroffs(status));

drivers/net/ethernet/amd/amd8111e.c

···
 			pci_unmap_single(lp->pci_dev, lp->tx_dma_addr[tx_index],
 				  	lp->tx_skbuff[tx_index]->len,
 					PCI_DMA_TODEVICE);
-			dev_kfree_skb_irq (lp->tx_skbuff[tx_index]);
+			dev_consume_skb_irq(lp->tx_skbuff[tx_index]);
 			lp->tx_skbuff[tx_index] = NULL;
 			lp->tx_dma_addr[tx_index] = 0;
 		}

drivers/net/ethernet/apple/bmac.c

···
 
 		if (bp->tx_bufs[bp->tx_empty]) {
 			++dev->stats.tx_packets;
-			dev_kfree_skb_irq(bp->tx_bufs[bp->tx_empty]);
+			dev_consume_skb_irq(bp->tx_bufs[bp->tx_empty]);
 		}
 		bp->tx_bufs[bp->tx_empty] = NULL;
 		bp->tx_fullup = 0;

drivers/net/ethernet/broadcom/b44.c

···
 		bytes_compl += skb->len;
 		pkts_compl++;
 
-		dev_kfree_skb_irq(skb);
+		dev_consume_skb_irq(skb);
 	}
 
 	netdev_completed_queue(bp->dev, pkts_compl, bytes_compl);
···
 		}
 
 		skb_copy_from_linear_data(skb, skb_put(bounce_skb, len), len);
-		dev_kfree_skb_any(skb);
+		dev_consume_skb_any(skb);
 		skb = bounce_skb;
 	}
 

drivers/net/ethernet/broadcom/bcmsysport.c

···
 				struct ethtool_wolinfo *wol)
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
-	u32 reg;
 
 	wol->supported = WAKE_MAGIC | WAKE_MAGICSECURE | WAKE_FILTER;
 	wol->wolopts = priv->wolopts;
···
 	if (!(priv->wolopts & WAKE_MAGICSECURE))
 		return;
 
-	/* Return the programmed SecureOn password */
-	reg = umac_readl(priv, UMAC_PSW_MS);
-	put_unaligned_be16(reg, &wol->sopass[0]);
-	reg = umac_readl(priv, UMAC_PSW_LS);
-	put_unaligned_be32(reg, &wol->sopass[2]);
+	memcpy(wol->sopass, priv->sopass, sizeof(priv->sopass));
 }
 
 static int bcm_sysport_set_wol(struct net_device *dev,
···
 	if (wol->wolopts & ~supported)
 		return -EINVAL;
 
-	/* Program the SecureOn password */
-	if (wol->wolopts & WAKE_MAGICSECURE) {
-		umac_writel(priv, get_unaligned_be16(&wol->sopass[0]),
-			    UMAC_PSW_MS);
-		umac_writel(priv, get_unaligned_be32(&wol->sopass[2]),
-			    UMAC_PSW_LS);
-	}
+	if (wol->wolopts & WAKE_MAGICSECURE)
+		memcpy(priv->sopass, wol->sopass, sizeof(priv->sopass));
 
 	/* Flag the device and relevant IRQ as wakeup capable */
 	if (wol->wolopts) {
···
 	unsigned int index, i = 0;
 	u32 reg;
 
-	/* Password has already been programmed */
 	reg = umac_readl(priv, UMAC_MPD_CTRL);
 	if (priv->wolopts & (WAKE_MAGIC | WAKE_MAGICSECURE))
 		reg |= MPD_EN;
 	reg &= ~PSW_EN;
-	if (priv->wolopts & WAKE_MAGICSECURE)
+	if (priv->wolopts & WAKE_MAGICSECURE) {
+		/* Program the SecureOn password */
+		umac_writel(priv, get_unaligned_be16(&priv->sopass[0]),
+			    UMAC_PSW_MS);
+		umac_writel(priv, get_unaligned_be32(&priv->sopass[2]),
+			    UMAC_PSW_LS);
 		reg |= PSW_EN;
+	}
 	umac_writel(priv, reg, UMAC_MPD_CTRL);
 
 	if (priv->wolopts & WAKE_FILTER) {

drivers/net/ethernet/broadcom/bcmsysport.h

···
 #define __BCM_SYSPORT_H
 
 #include <linux/bitmap.h>
+#include <linux/ethtool.h>
 #include <linux/if_vlan.h>
 #include <linux/net_dim.h>
 
···
 	unsigned int		crc_fwd:1;
 	u16			rev;
 	u32			wolopts;
+	u8			sopass[SOPASS_MAX];
 	unsigned int		wol_irq_disabled:1;
 
 	/* MIB related fields */

drivers/net/ethernet/broadcom/bnxt/bnxt.c

···
 		struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
 		struct bnxt_ring_struct *ring = &cpr->cp_ring_struct;
 		u32 map_idx = ring->map_idx;
+		unsigned int vector;
 
+		vector = bp->irq_tbl[map_idx].vector;
+		disable_irq_nosync(vector);
 		rc = hwrm_ring_alloc_send_msg(bp, ring, type, map_idx);
-		if (rc)
+		if (rc) {
+			enable_irq(vector);
 			goto err_out;
+		}
 		bnxt_set_db(bp, &cpr->cp_db, type, map_idx, ring->fw_ring_id);
 		bnxt_db_nq(bp, &cpr->cp_db, cpr->cp_raw_cons);
+		enable_irq(vector);
 		bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id;
 
 		if (!i) {

drivers/net/ethernet/broadcom/sb1250-mac.c

···
 		 * for transmits, we just free buffers.
 		 */
 
-		dev_kfree_skb_irq(sb);
+		dev_consume_skb_irq(sb);
 
 		/*
 		 * .. and advance to the next buffer.

drivers/net/ethernet/cadence/macb.h

···
 #define MACB_CAPS_JUMBO				0x00000020
 #define MACB_CAPS_GEM_HAS_PTP			0x00000040
 #define MACB_CAPS_BD_RD_PREFETCH		0x00000080
+#define MACB_CAPS_NEEDS_RSTONUBR		0x00000100
 #define MACB_CAPS_FIFO_MODE			0x10000000
 #define MACB_CAPS_GIGABIT_MODE_AVAILABLE	0x20000000
 #define MACB_CAPS_SG_DISABLED			0x40000000
···
 
 	int	rx_bd_rd_prefetch;
 	int	tx_bd_rd_prefetch;
+
+	u32	rx_intr_mask;
 };
 
 #ifdef CONFIG_MACB_USE_HWSTAMP

drivers/net/ethernet/cadence/macb_main.c

···
 /* level of occupied TX descriptors under which we wake up TX process */
 #define MACB_TX_WAKEUP_THRESH(bp)	(3 * (bp)->tx_ring_size / 4)
 
-#define MACB_RX_INT_FLAGS	(MACB_BIT(RCOMP) | MACB_BIT(RXUBR)	\
-				 | MACB_BIT(ISR_ROVR))
+#define MACB_RX_INT_FLAGS	(MACB_BIT(RCOMP) | MACB_BIT(ISR_ROVR))
 #define MACB_TX_ERR_FLAGS	(MACB_BIT(ISR_TUND)			\
 					| MACB_BIT(ISR_RLE)		\
 					| MACB_BIT(TXERR))
···
 				queue_writel(queue, ISR, MACB_BIT(RCOMP));
 			napi_reschedule(napi);
 		} else {
-			queue_writel(queue, IER, MACB_RX_INT_FLAGS);
+			queue_writel(queue, IER, bp->rx_intr_mask);
 		}
 	}
 
···
 	u32 ctrl;
 
 	for (q = 0, queue = bp->queues; q < bp->num_queues; ++q, ++queue) {
-		queue_writel(queue, IDR, MACB_RX_INT_FLAGS |
+		queue_writel(queue, IDR, bp->rx_intr_mask |
 					 MACB_TX_INT_FLAGS |
 					 MACB_BIT(HRESP));
 	}
···
 
 		/* Enable interrupts */
 		queue_writel(queue, IER,
-			     MACB_RX_INT_FLAGS |
+			     bp->rx_intr_mask |
 			     MACB_TX_INT_FLAGS |
 			     MACB_BIT(HRESP));
 	}
···
 			    (unsigned int)(queue - bp->queues),
 			    (unsigned long)status);
 
-		if (status & MACB_RX_INT_FLAGS) {
+		if (status & bp->rx_intr_mask) {
 			/* There's no point taking any more interrupts
 			 * until we have processed the buffers. The
 			 * scheduling call may fail if the poll routine
 			 * is already scheduled, so disable interrupts
 			 * now.
 			 */
-			queue_writel(queue, IDR, MACB_RX_INT_FLAGS);
+			queue_writel(queue, IDR, bp->rx_intr_mask);
 			if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
 				queue_writel(queue, ISR, MACB_BIT(RCOMP));
 
···
 		/* There is a hardware issue under heavy load where DMA can
 		 * stop, this causes endless "used buffer descriptor read"
 		 * interrupts but it can be cleared by re-enabling RX. See
-		 * the at91 manual, section 41.3.1 or the Zynq manual
-		 * section 16.7.4 for details.
+		 * the at91rm9200 manual, section 41.3.1 or the Zynq manual
+		 * section 16.7.4 for details. RXUBR is only enabled for
+		 * these two versions.
 		 */
 		if (status & MACB_BIT(RXUBR)) {
 			ctrl = macb_readl(bp, NCR);
···
 
 		/* Enable interrupts */
 		queue_writel(queue, IER,
-			     MACB_RX_INT_FLAGS |
+			     bp->rx_intr_mask |
 			     MACB_TX_INT_FLAGS |
 			     MACB_BIT(HRESP));
 	}
···
 };
 
 static const struct macb_config emac_config = {
+	.caps = MACB_CAPS_NEEDS_RSTONUBR,
 	.clk_init = at91ether_clk_init,
 	.init = at91ether_init,
 };
···
 };
 
 static const struct macb_config zynq_config = {
-	.caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_NO_GIGABIT_HALF,
+	.caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_NO_GIGABIT_HALF |
+		MACB_CAPS_NEEDS_RSTONUBR,
 	.dma_burst_length = 16,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
···
 			bp->tx_bd_rd_prefetch = (2 << (val - 1)) *
 						macb_dma_desc_get_size(bp);
 	}
+
+	bp->rx_intr_mask = MACB_RX_INT_FLAGS;
+	if (bp->caps & MACB_CAPS_NEEDS_RSTONUBR)
+		bp->rx_intr_mask |= MACB_BIT(RXUBR);
 
 	mac = of_get_mac_address(np);
 	if (mac) {

drivers/net/ethernet/cavium/Kconfig

···
 	tristate "Cavium PTP coprocessor as PTP clock"
 	depends on 64BIT && PCI
 	imply PTP_1588_CLOCK
-	default y
 	---help---
 	  This driver adds support for the Precision Time Protocol Clocks and
 	  Timestamping coprocessor (PTP) found on Cavium processors.

drivers/net/ethernet/cisco/enic/enic_main.c

···
 		 * csum is correct or is zero.
 		 */
 		if ((netdev->features & NETIF_F_RXCSUM) && !csum_not_calc &&
-		    tcp_udp_csum_ok && ipv4_csum_ok && outer_csum_ok) {
+		    tcp_udp_csum_ok && outer_csum_ok &&
+		    (ipv4_csum_ok || ipv6)) {
 			skb->ip_summed = CHECKSUM_UNNECESSARY;
 			skb->csum_level = encap;
 		}

drivers/net/ethernet/dec/tulip/de2104x.c

···
 				netif_dbg(de, tx_done, de->dev,
 					  "tx done, slot %d\n", tx_tail);
 			}
-			dev_kfree_skb_irq(skb);
+			dev_consume_skb_irq(skb);
 		}
 
 next:

drivers/net/ethernet/freescale/fec_mpc52xx.c

···
 		dma_unmap_single(dev->dev.parent, bd->skb_pa, skb->len,
 				 DMA_TO_DEVICE);
 
-		dev_kfree_skb_irq(skb);
+		dev_consume_skb_irq(skb);
 	}
 	spin_unlock(&priv->lock);
 

drivers/net/ethernet/freescale/ucc_geth.c

···
 	u16 i, j;
 	u8 __iomem *bd;
 
+	netdev_reset_queue(ugeth->ndev);
+
 	ug_info = ugeth->ug_info;
 	uf_info = &ug_info->uf_info;
 

drivers/net/ethernet/hisilicon/hns/hns_enet.c

···
 out_notify_fail:
 	(void)cancel_work_sync(&priv->service_task);
 out_read_prop_fail:
+	/* safe for ACPI FW */
+	of_node_put(to_of_node(priv->fwnode));
 	free_netdev(ndev);
 	return ret;
 }
···
 
 	set_bit(NIC_STATE_REMOVING, &priv->state);
 	(void)cancel_work_sync(&priv->service_task);
+
+	/* safe for ACPI FW */
+	of_node_put(to_of_node(priv->fwnode));
 
 	free_netdev(ndev);
 	return 0;

drivers/net/ethernet/hisilicon/hns/hns_ethtool.c

···
  */
 static int hns_nic_nway_reset(struct net_device *netdev)
 {
-	int ret = 0;
 	struct phy_device *phy = netdev->phydev;
 
-	if (netif_running(netdev)) {
-		/* if autoneg is disabled, don't restart auto-negotiation */
-		if (phy && phy->autoneg == AUTONEG_ENABLE)
-			ret = genphy_restart_aneg(phy);
-	}
+	if (!netif_running(netdev))
+		return 0;
 
-	return ret;
+	if (!phy)
+		return -EOPNOTSUPP;
+
+	if (phy->autoneg != AUTONEG_ENABLE)
+		return -EINVAL;
+
+	return genphy_restart_aneg(phy);
 }
 
 static u32

drivers/net/ethernet/hisilicon/hns_mdio.c

···
 		}
 
 		hns_mdio_cmd_write(mdio_dev, is_c45,
-				   MDIO_C45_WRITE_ADDR, phy_id, devad);
+				   MDIO_C45_READ, phy_id, devad);
 	}
 
 	/* Step 5: waitting for MDIO_COMMAND_REG 's mdio_start==0,*/

drivers/net/ethernet/i825xx/82596.c

···
 						dev->stats.tx_aborted_errors++;
 				}
 
-				dev_kfree_skb_irq(skb);
+				dev_consume_skb_irq(skb);
 
 				tx_cmd->cmd.command = 0; /* Mark free */
 				break;

drivers/net/ethernet/marvell/skge.c

···
 	memset(p, 0, regs->len);
 	memcpy_fromio(p, io, B3_RAM_ADDR);
 
-	memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1,
-		      regs->len - B3_RI_WTO_R1);
+	if (regs->len > B3_RI_WTO_R1) {
+		memcpy_fromio(p + B3_RI_WTO_R1, io + B3_RI_WTO_R1,
+			      regs->len - B3_RI_WTO_R1);
+	}
 }
 
 /* Wake on Lan only supported on Yukon chips with rev 1 or above */

drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c

···
 	e->m_neigh.family = n->ops->family;
 	memcpy(&e->m_neigh.dst_ip, n->primary_key, n->tbl->key_len);
 	e->out_dev = out_dev;
+	e->route_dev = route_dev;
 
 	/* It's important to add the neigh to the hash table before checking
 	 * the neigh validity state. So if we'll get a notification, in case the
···
 	e->m_neigh.family = n->ops->family;
 	memcpy(&e->m_neigh.dst_ip, n->primary_key, n->tbl->key_len);
 	e->out_dev = out_dev;
+	e->route_dev = route_dev;
 
 	/* It's importent to add the neigh to the hash table before checking
 	 * the neigh validity state. So if we'll get a notification, in case the
···
 		       struct mlx5_flow_spec *spec,
 		       struct tc_cls_flower_offload *f,
 		       void *headers_c,
-		       void *headers_v)
+		       void *headers_v, u8 *match_level)
 {
 	int tunnel_type;
 	int err = 0;
 
 	tunnel_type = mlx5e_tc_tun_get_type(filter_dev);
 	if (tunnel_type == MLX5E_TC_TUNNEL_TYPE_VXLAN) {
+		*match_level = MLX5_MATCH_L4;
 		err = mlx5e_tc_tun_parse_vxlan(priv, spec, f,
 					       headers_c, headers_v);
 	} else if (tunnel_type == MLX5E_TC_TUNNEL_TYPE_GRETAP) {
+		*match_level = MLX5_MATCH_L3;
 		err = mlx5e_tc_tun_parse_gretap(priv, spec, f,
 						headers_c, headers_v);
 	} else {

drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h

···
 		       struct mlx5_flow_spec *spec,
 		       struct tc_cls_flower_offload *f,
 		       void *headers_c,
-		       void *headers_v);
+		       void *headers_v, u8 *match_level);
 
 #endif //__MLX5_EN_TC_TUNNEL_H__

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

···
 	if (params->rx_dim_enabled)
 		__set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);
 
-	if (params->pflags & MLX5E_PFLAG_RX_NO_CSUM_COMPLETE)
+	if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_NO_CSUM_COMPLETE))
 		__set_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state);
 
 	return 0;

drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

···
 	if (neigh_connected && !(e->flags & MLX5_ENCAP_ENTRY_VALID)) {
 		ether_addr_copy(e->h_dest, ha);
 		ether_addr_copy(eth->h_dest, ha);
+		/* Update the encap source mac, in case that we delete
+		 * the flows when encap source mac changed.
+		 */
+		ether_addr_copy(eth->h_source, e->route_dev->dev_addr);
 
 		mlx5e_tc_encap_flows_add(priv, e);
 	}
···
 	struct mlx5e_priv *priv = netdev_priv(dev);
 	struct mlx5e_rep_priv *rpriv = priv->ppriv;
 	struct mlx5_eswitch_rep *rep = rpriv->rep;
-	int ret;
+	int ret, pf_num;
 
-	ret = snprintf(buf, len, "%d", rep->vport - 1);
+	ret = mlx5_lag_get_pf_num(priv->mdev, &pf_num);
+	if (ret)
+		return ret;
+
+	if (rep->vport == FDB_UPLINK_VPORT)
+		ret = snprintf(buf, len, "p%d", pf_num);
+	else
+		ret = snprintf(buf, len, "pf%dvf%d", pf_num, rep->vport - 1);
+
 	if (ret >= len)
 		return -EOPNOTSUPP;
 
···
 	return 0;
 }
 
+static int mlx5e_uplink_rep_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
+					__be16 vlan_proto)
+{
+	netdev_warn_once(dev, "legacy vf vlan setting isn't supported in switchdev mode\n");
+
+	if (vlan != 0)
+		return -EOPNOTSUPP;
+
+	/* allow setting 0-vid for compatibility with libvirt */
+	return 0;
+}
+
 static const struct switchdev_ops mlx5e_rep_switchdev_ops = {
 	.switchdev_port_attr_get	= mlx5e_attr_get,
 };
···
 	.ndo_set_vf_rate         = mlx5e_set_vf_rate,
 	.ndo_get_vf_config       = mlx5e_get_vf_config,
 	.ndo_get_vf_stats        = mlx5e_get_vf_stats,
+	.ndo_set_vf_vlan         = mlx5e_uplink_rep_set_vf_vlan,
 };
 
 bool mlx5e_eswitch_rep(struct net_device *netdev)

drivers/net/ethernet/mellanox/mlx5/core/en_rep.h

···
 	unsigned char h_dest[ETH_ALEN];	/* destination eth addr	*/
 
 	struct net_device *out_dev;
+	struct net_device *route_dev;
 	int tunnel_type;
 	int tunnel_hlen;
 	int reformat_type;

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

···
 	struct net_device *filter_dev;
 	struct mlx5_flow_spec spec;
 	int num_mod_hdr_actions;
+	int max_mod_hdr_actions;
 	void *mod_hdr_actions;
 	int mirred_ifindex[MLX5_MAX_FLOW_FWD_VPORTS];
 };
···
 static int parse_tunnel_attr(struct mlx5e_priv *priv,
 			     struct mlx5_flow_spec *spec,
 			     struct tc_cls_flower_offload *f,
-			     struct net_device *filter_dev)
+			     struct net_device *filter_dev, u8 *match_level)
 {
 	struct netlink_ext_ack *extack = f->common.extack;
 	void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
···
 	int err = 0;
 
 	err = mlx5e_tc_tun_parse(filter_dev, priv, spec, f,
-				 headers_c, headers_v);
+				 headers_c, headers_v, match_level);
 	if (err) {
 		NL_SET_ERR_MSG_MOD(extack,
 				   "failed to parse tunnel attributes");
···
 			      struct mlx5_flow_spec *spec,
 			      struct tc_cls_flower_offload *f,
 			      struct net_device *filter_dev,
-			      u8 *match_level)
+			      u8 *match_level, u8 *tunnel_match_level)
 {
 	struct netlink_ext_ack *extack = f->common.extack;
 	void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
···
 		switch (key->addr_type) {
 		case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
 		case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
-			if (parse_tunnel_attr(priv, spec, f, filter_dev))
+			if (parse_tunnel_attr(priv, spec, f, filter_dev, tunnel_match_level))
 				return -EOPNOTSUPP;
 			break;
 		default:
···
 	struct mlx5_core_dev *dev = priv->mdev;
 	struct mlx5_eswitch *esw = dev->priv.eswitch;
 	struct mlx5e_rep_priv *rpriv = priv->ppriv;
+	u8 match_level, tunnel_match_level = MLX5_MATCH_NONE;
 	struct mlx5_eswitch_rep *rep;
-	u8 match_level;
 	int err;
 
-	err = __parse_cls_flower(priv, spec, f, filter_dev, &match_level);
+	err = __parse_cls_flower(priv, spec, f, filter_dev, &match_level, &tunnel_match_level);
 
 	if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH)) {
 		rep = rpriv->rep;
···
 		}
 	}
 
-	if (flow->flags & MLX5E_TC_FLOW_ESWITCH)
+	if (flow->flags & MLX5E_TC_FLOW_ESWITCH) {
 		flow->esw_attr->match_level = match_level;
-	else
+		flow->esw_attr->tunnel_match_level = tunnel_match_level;
+	} else {
 		flow->nic_attr->match_level = match_level;
+	}
 
 	return err;
 }
···
 	OFFLOAD(UDP_DPORT, 2, udp.dest,   0),
 };
 
-/* On input attr->num_mod_hdr_actions tells how many HW actions can be parsed at
- * max from the SW pedit action. On success, it says how many HW actions were
- * actually parsed.
+/* On input attr->max_mod_hdr_actions tells how many HW actions can be parsed at
+ * max from the SW pedit action. On success, attr->num_mod_hdr_actions
+ * says how many HW actions were actually parsed.
  */
 static int offload_pedit_fields(struct pedit_headers *masks,
 				struct pedit_headers *vals,
···
 	add_vals = &vals[TCA_PEDIT_KEY_EX_CMD_ADD];
 
 	action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto);
-	action = parse_attr->mod_hdr_actions;
-	max_actions = parse_attr->num_mod_hdr_actions;
-	nactions = 0;
+	action = parse_attr->mod_hdr_actions +
+		 parse_attr->num_mod_hdr_actions * action_size;
+
+	max_actions = parse_attr->max_mod_hdr_actions;
+	nactions = parse_attr->num_mod_hdr_actions;
 
 	for (i = 0; i < ARRAY_SIZE(fields); i++) {
 		f = &fields[i];
···
 	if (!parse_attr->mod_hdr_actions)
 		return -ENOMEM;
 
-	parse_attr->num_mod_hdr_actions = max_actions;
+	parse_attr->max_mod_hdr_actions = max_actions;
 	return 0;
 }
 
···
 			goto out_err;
 	}
 
-	err = alloc_mod_hdr_actions(priv, a, namespace, parse_attr);
-	if (err)
-		goto out_err;
+	if (!parse_attr->mod_hdr_actions) {
+		err = alloc_mod_hdr_actions(priv, a, namespace, parse_attr);
+		if (err)
+			goto out_err;
+	}
 
 	err = offload_pedit_fields(masks, vals, parse_attr, extack);
 	if (err < 0)
···
 
 static bool modify_header_match_supported(struct mlx5_flow_spec *spec,
 					  struct tcf_exts *exts,
+					  u32 actions,
 					  struct netlink_ext_ack *extack)
 {
 	const struct tc_action *a;
···
 	u16 ethertype;
 	int nkeys, i;
 
-	headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers);
+	if (actions & MLX5_FLOW_CONTEXT_ACTION_DECAP)
+		headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, inner_headers);
+	else
+		headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers);
+
 	ethertype = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ethertype);
 
 	/* for non-IP we only re-write MACs, so we're okay */
···
 
 	if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
 		return modify_header_match_supported(&parse_attr->spec, exts,
-						     extack);
+						     actions, extack);
 
 	return true;
 }

drivers/net/ethernet/mellanox/mlx5/core/en_tx.c

···
 	num_wqebbs = DIV_ROUND_UP(ds_cnt, MLX5_SEND_WQEBB_NUM_DS);
 	contig_wqebbs_room = mlx5_wq_cyc_get_contig_wqebbs(wq, pi);
 	if (unlikely(contig_wqebbs_room < num_wqebbs)) {
+#ifdef CONFIG_MLX5_EN_IPSEC
+		struct mlx5_wqe_eth_seg cur_eth = wqe->eth;
+#endif
 		mlx5e_fill_sq_frag_edge(sq, wq, pi, contig_wqebbs_room);
 		mlx5e_sq_fetch_wqe(sq, &wqe, &pi);
+#ifdef CONFIG_MLX5_EN_IPSEC
+		wqe->eth = cur_eth;
+#endif
 	}
 
 	/* fill wqe */

drivers/net/ethernet/mellanox/mlx5/core/eswitch.c

···
 	int err = 0;
 	u8 *smac_v;
 
-	if (vport->info.spoofchk && !is_valid_ether_addr(vport->info.mac)) {
-		mlx5_core_warn(esw->dev,
-			       "vport[%d] configure ingress rules failed, illegal mac with spoofchk\n",
-			       vport->vport);
-		return -EPERM;
-	}
-
 	esw_vport_cleanup_ingress_rules(esw, vport);
 
 	if (!vport->info.vlan && !vport->info.qos && !vport->info.spoofchk) {
···
 	int vport_num;
 	int err;
 
-	if (!MLX5_ESWITCH_MANAGER(dev))
+	if (!MLX5_VPORT_MANAGER(dev))
 		return 0;
 
 	esw_info(dev,
···
 
 void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
 {
-	if (!esw || !MLX5_ESWITCH_MANAGER(esw->dev))
+	if (!esw || !MLX5_VPORT_MANAGER(esw->dev))
 		return;
 
 	esw_info(esw->dev, "cleanup\n");
···
 	mutex_lock(&esw->state_lock);
 	evport = &esw->vports[vport];
 
-	if (evport->info.spoofchk && !is_valid_ether_addr(mac)) {
+	if (evport->info.spoofchk && !is_valid_ether_addr(mac))
 		mlx5_core_warn(esw->dev,
-			       "MAC invalidation is not allowed when spoofchk is on, vport(%d)\n",
+			       "Set invalid MAC while spoofchk is on, vport(%d)\n",
 			       vport);
-		err = -EPERM;
-		goto unlock;
-	}
 
 	err = mlx5_modify_nic_vport_mac_address(esw->dev, vport, mac);
 	if (err) {
···
 	evport = &esw->vports[vport];
 	pschk = evport->info.spoofchk;
 	evport->info.spoofchk = spoofchk;
+	if (pschk && !is_valid_ether_addr(evport->info.mac))
+		mlx5_core_warn(esw->dev,
+			       "Spoofchk in set while MAC is invalid, vport(%d)\n",
+			       evport->vport);
 	if (evport->enabled && esw->mode == SRIOV_LEGACY)
 		err = esw_vport_ingress_config(esw, evport);
 	if (err)

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

···
 	} dests[MLX5_MAX_FLOW_FWD_VPORTS];
 	u32	mod_hdr_id;
 	u8	match_level;
+	u8	tunnel_match_level;
 	struct mlx5_fc *counter;
 	u32	chain;
 	u16	prio;

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

···
 		MLX5_SET_TO_ONES(fte_match_set_misc, misc,
 				 source_eswitch_owner_vhca_id);
 
-	if (attr->match_level == MLX5_MATCH_NONE)
-		spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
-	else
-		spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS |
-					      MLX5_MATCH_MISC_PARAMETERS;
-
-	if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_DECAP)
-		spec->match_criteria_enable |= MLX5_MATCH_INNER_HEADERS;
+	spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
+	if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_DECAP) {
+		if (attr->tunnel_match_level != MLX5_MATCH_NONE)
+			spec->match_criteria_enable |= MLX5_MATCH_OUTER_HEADERS;
+		if (attr->match_level != MLX5_MATCH_NONE)
+			spec->match_criteria_enable |= MLX5_MATCH_INNER_HEADERS;
+	} else if (attr->match_level != MLX5_MATCH_NONE) {
+		spec->match_criteria_enable |= MLX5_MATCH_OUTER_HEADERS;
+	}
 
 	if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
 		flow_act.modify_id = attr->mod_hdr_id;

drivers/net/ethernet/mellanox/mlx5/core/lag.c

···
 	}
 }
 
+int mlx5_lag_get_pf_num(struct mlx5_core_dev *dev, int *pf_num)
+{
+	struct mlx5_lag *ldev;
+	int n;
+
+	ldev = mlx5_lag_dev_get(dev);
+	if (!ldev) {
+		mlx5_core_warn(dev, "no lag device, can't get pf num\n");
+		return -EINVAL;
+	}
+
+	for (n = 0; n < MLX5_MAX_PORTS; n++)
+		if (ldev->pf[n].dev == dev) {
+			*pf_num = n;
+			return 0;
+		}
+
+	mlx5_core_warn(dev, "wasn't able to locate pf in the lag device\n");
+	return -EINVAL;
+}
+
 /* Must be called with intf_mutex held */
 void mlx5_lag_remove(struct mlx5_core_dev *dev)
 {

drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h

···
 		    MLX5_CAP_GEN(dev, lag_master);
 }
 
+int mlx5_lag_get_pf_num(struct mlx5_core_dev *dev, int *pf_num);
+
 void mlx5_reload_interface(struct mlx5_core_dev *mdev, int protocol);
 void mlx5_lag_update(struct mlx5_core_dev *dev);
 

drivers/net/ethernet/mellanox/mlx5/core/qp.c

···
 mlx5_get_rsc(struct mlx5_qp_table *table, u32 rsn)
 {
 	struct mlx5_core_rsc_common *common;
+	unsigned long flags;
 
-	spin_lock(&table->lock);
+	spin_lock_irqsave(&table->lock, flags);
 
 	common = radix_tree_lookup(&table->tree, rsn);
 	if (common)
 		atomic_inc(&common->refcount);
 
-	spin_unlock(&table->lock);
+	spin_unlock_irqrestore(&table->lock, flags);
 
 	return common;
 }

drivers/net/ethernet/qlogic/qed/qed.h

···
 extern const struct qed_common_ops qed_common_ops_pass;
 
 #define QED_MAJOR_VERSION		8
-#define QED_MINOR_VERSION		33
+#define QED_MINOR_VERSION		37
 #define QED_REVISION_VERSION		0
 #define QED_ENGINEERING_VERSION		20
 

drivers/net/ethernet/qlogic/qed/qed_dev.c

···
 
 /* get pq index according to PQ_FLAGS */
 static u16 *qed_init_qm_get_idx_from_flags(struct qed_hwfn *p_hwfn,
-					   u32 pq_flags)
+					   unsigned long pq_flags)
 {
 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
 
 	/* Can't have multiple flags set here */
-	if (bitmap_weight((unsigned long *)&pq_flags,
+	if (bitmap_weight(&pq_flags,
 			  sizeof(pq_flags) * BITS_PER_BYTE) > 1) {
-		DP_ERR(p_hwfn, "requested multiple pq flags 0x%x\n", pq_flags);
+		DP_ERR(p_hwfn, "requested multiple pq flags 0x%lx\n", pq_flags);
 		goto err;
 	}
 
 	if (!(qed_get_pq_flags(p_hwfn) & pq_flags)) {
-		DP_ERR(p_hwfn, "pq flag 0x%x is not set\n", pq_flags);
+		DP_ERR(p_hwfn, "pq flag 0x%lx is not set\n", pq_flags);
 		goto err;
 	}
 

drivers/net/ethernet/qlogic/qed/qed_l2.c

···
 			  (!!(accept_filter & QED_ACCEPT_MCAST_MATCHED) &&
 			   !!(accept_filter & QED_ACCEPT_MCAST_UNMATCHED)));
 
+		SET_FIELD(state, ETH_VPORT_TX_MODE_UCAST_ACCEPT_ALL,
+			  (!!(accept_filter & QED_ACCEPT_UCAST_MATCHED) &&
+			   !!(accept_filter & QED_ACCEPT_UCAST_UNMATCHED)));
+
 		SET_FIELD(state, ETH_VPORT_TX_MODE_BCAST_ACCEPT_ALL,
 			  !!(accept_filter & QED_ACCEPT_BCAST));
 
···
 	if (rc) {
 		qed_sp_destroy_request(p_hwfn, p_ent);
 		return rc;
+	}
+
+	if (p_params->update_ctl_frame_check) {
+		p_cmn->ctl_frame_mac_check_en = p_params->mac_chk_en;
+		p_cmn->ctl_frame_ethtype_check_en = p_params->ethtype_chk_en;
 	}
 
 	/* Update mcast bins for VFs, PF doesn't use this functionality */
···
 			u16 num_queues = 0;
 
 			/* Since the feature controls only queue-zones,
-			 * make sure we have the contexts [rx, tx, xdp] to
+			 * make sure we have the contexts [rx, xdp, tcs] to
 			 * match.
 			 */
 			for_each_hwfn(cdev, i) {
···
 				u16 cids;
 
 				cids = hwfn->pf_params.eth_pf_params.num_cons;
-				num_queues += min_t(u16, l2_queues, cids / 3);
+				cids /= (2 + info->num_tc);
+				num_queues += min_t(u16, l2_queues, cids);
 			}
 
 			/* queues might theoretically be >256, but interrupts'
···
 	if (type == QED_FILTER_RX_MODE_TYPE_PROMISC) {
 		accept_flags.rx_accept_filter |= QED_ACCEPT_UCAST_UNMATCHED |
 						 QED_ACCEPT_MCAST_UNMATCHED;
-		accept_flags.tx_accept_filter |= QED_ACCEPT_MCAST_UNMATCHED;
+		accept_flags.tx_accept_filter |= QED_ACCEPT_UCAST_UNMATCHED |
+						 QED_ACCEPT_MCAST_UNMATCHED;
 	} else if (type == QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC) {
 		accept_flags.rx_accept_filter |= QED_ACCEPT_MCAST_UNMATCHED;
 		accept_flags.tx_accept_filter |= QED_ACCEPT_MCAST_UNMATCHED;
···
 	p_hwfn = p_cid->p_owner;
 	rc = qed_get_queue_coalesce(p_hwfn, coal, handle);
 	if (rc)
-		DP_NOTICE(p_hwfn, "Unable to read queue coalescing\n");
+		DP_VERBOSE(cdev, QED_MSG_DEBUG,
+			   "Unable to read queue coalescing\n");
 
 	return rc;
 }

drivers/net/ethernet/qlogic/qed/qed_l2.h

···
 	struct qed_rss_params		*rss_params;
 	struct qed_filter_accept_flags	accept_flags;
 	struct qed_sge_tpa_params	*sge_tpa_params;
+	u8				update_ctl_frame_check;
+	u8				mac_chk_en;
+	u8				ethtype_chk_en;
 };
 
 int qed_sp_vport_update(struct qed_hwfn *p_hwfn,

drivers/net/ethernet/qlogic/qed/qed_ll2.c

···
 {
 	struct qed_ll2_tx_pkt_info pkt;
 	const skb_frag_t *frag;
+	u8 flags = 0, nr_frags;
 	int rc = -EINVAL, i;
 	dma_addr_t mapping;
 	u16 vlan = 0;
-	u8 flags = 0;
 
 	if (unlikely(skb->ip_summed != CHECKSUM_NONE)) {
 		DP_INFO(cdev, "Cannot transmit a checksummed packet\n");
 		return -EINVAL;
 	}
 
-	if (1 + skb_shinfo(skb)->nr_frags > CORE_LL2_TX_MAX_BDS_PER_PACKET) {
+	/* Cache number of fragments from SKB since SKB may be freed by
+	 * the completion routine after calling qed_ll2_prepare_tx_packet()
+	 */
+	nr_frags = skb_shinfo(skb)->nr_frags;
+
+	if (1 + nr_frags > CORE_LL2_TX_MAX_BDS_PER_PACKET) {
 		DP_ERR(cdev, "Cannot transmit a packet with %d fragments\n",
-		       1 + skb_shinfo(skb)->nr_frags);
+		       1 + nr_frags);
 		return -EINVAL;
 	}
 
···
 	}
 
 	memset(&pkt, 0, sizeof(pkt));
-	pkt.num_of_bds = 1 + skb_shinfo(skb)->nr_frags;
+	pkt.num_of_bds = 1 + nr_frags;
 	pkt.vlan = vlan;
 	pkt.bd_flags = flags;
 	pkt.tx_dest = QED_LL2_TX_DEST_NW;
···
 	    test_bit(QED_LL2_XMIT_FLAGS_FIP_DISCOVERY, &xmit_flags))
 		pkt.remove_stag = true;
 
+	/* qed_ll2_prepare_tx_packet() may actually send the packet if
+	 * there are no fragments in the skb and subsequently the completion
+	 * routine may run and free the SKB, so no dereferencing the SKB
+	 * beyond this point unless skb has any fragments.
+	 */
 	rc = qed_ll2_prepare_tx_packet(&cdev->hwfns[0], cdev->ll2->handle,
 				       &pkt, 1);
 	if (rc)
 		goto err;
 
-	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+	for (i = 0; i < nr_frags; i++) {
 		frag = &skb_shinfo(skb)->frags[i];
 
 		mapping = skb_frag_dma_map(&cdev->pdev->dev, frag, 0,

drivers/net/ethernet/qlogic/qed/qed_sp.h

···
  * @param p_hwfn
  */
 void qed_consq_free(struct qed_hwfn *p_hwfn);
+int qed_spq_pend_post(struct qed_hwfn *p_hwfn);
 
 /**
  * @file

drivers/net/ethernet/qlogic/qed/qed_sp_commands.c

···
 
 	p_ent->ramrod.pf_update.update_mf_vlan_flag = true;
 	p_ent->ramrod.pf_update.mf_vlan = cpu_to_le16(p_hwfn->hw_info.ovlan);
+	if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits))
+		p_ent->ramrod.pf_update.mf_vlan |=
+			cpu_to_le16(((u16)p_hwfn->ufp_info.tc << 13));
 
 	return qed_spq_post(p_hwfn, p_ent, NULL);
 }

drivers/net/ethernet/qlogic/qed/qed_spq.c

···
 
 	qed_eq_prod_update(p_hwfn, qed_chain_get_prod_idx(p_chain));
 
+	/* Attempt to post pending requests */
+	spin_lock_bh(&p_hwfn->p_spq->lock);
+	rc = qed_spq_pend_post(p_hwfn);
+	spin_unlock_bh(&p_hwfn->p_spq->lock);
+
 	return rc;
 }
 
···
 	return 0;
 }
 
-static int qed_spq_pend_post(struct qed_hwfn *p_hwfn)
+int qed_spq_pend_post(struct qed_hwfn *p_hwfn)
 {
 	struct qed_spq *p_spq = p_hwfn->p_spq;
 	struct qed_spq_entry *p_ent = NULL;
···
 	struct qed_spq_entry	*p_ent = NULL;
 	struct qed_spq_entry	*tmp;
 	struct qed_spq_entry	*found = NULL;
-	int			rc;
 
 	if (!p_hwfn)
 		return -EINVAL;
···
 		 */
 		qed_spq_return_entry(p_hwfn, found);
 
-	/* Attempt to post pending requests */
-	spin_lock_bh(&p_spq->lock);
-	rc = qed_spq_pend_post(p_hwfn);
-	spin_unlock_bh(&p_spq->lock);
-
-	return rc;
+	return 0;
 }
 
 int qed_consq_alloc(struct qed_hwfn *p_hwfn)

drivers/net/ethernet/qlogic/qed/qed_sriov.c

···
 	params.vport_id = vf->vport_id;
 	params.max_buffers_per_cqe = start->max_buffers_per_cqe;
 	params.mtu = vf->mtu;
-	params.check_mac = true;
+
+	/* Non trusted VFs should enable control frame filtering */
+	params.check_mac = !vf->p_vf_info.is_trusted_configured;
 
 	rc = qed_sp_eth_vport_start(p_hwfn, &params);
 	if (rc) {
···
 		params.opaque_fid = vf->opaque_fid;
 		params.vport_id = vf->vport_id;
 
+		params.update_ctl_frame_check = 1;
+		params.mac_chk_en = !vf_info->is_trusted_configured;
+
 		if (vf_info->rx_accept_mode & mask) {
 			flags->update_rx_mode_config = 1;
 			flags->rx_accept_filter = vf_info->rx_accept_mode;
···
 		}
 
 		if (flags->update_rx_mode_config ||
-		    flags->update_tx_mode_config)
+		    flags->update_tx_mode_config ||
+		    params.update_ctl_frame_check)
 			qed_sp_vport_update(hwfn, &params,
 					    QED_SPQ_MODE_EBLOCK, NULL);
 	}

drivers/net/ethernet/qlogic/qed/qed_vf.c

···
 	struct pfvf_acquire_resp_tlv *resp = &p_iov->pf2vf_reply->acquire_resp;
 	struct pf_vf_pfdev_info *pfdev_info = &resp->pfdev_info;
 	struct vf_pf_resc_request *p_resc;
+	u8 retry_cnt = VF_ACQUIRE_THRESH;
 	bool resources_acquired = false;
 	struct vfpf_acquire_tlv *req;
 	int rc = 0, attempts = 0;
···
 
 		/* send acquire request */
 		rc = qed_send_msg2pf(p_hwfn, &resp->hdr.status, sizeof(*resp));
+
+		/* Re-try acquire in case of vf-pf hw channel timeout */
+		if (retry_cnt && rc == -EBUSY) {
+			DP_VERBOSE(p_hwfn, QED_MSG_IOV,
+				   "VF retrying to acquire due to VPC timeout\n");
+			retry_cnt--;
+			continue;
+		}
+
 		if (rc)
 			goto exit;
 

drivers/net/ethernet/qlogic/qede/qede.h

···
 #include <net/tc_act/tc_gact.h>
 
 #define QEDE_MAJOR_VERSION		8
-#define QEDE_MINOR_VERSION		33
+#define QEDE_MINOR_VERSION		37
 #define QEDE_REVISION_VERSION		0
 #define QEDE_ENGINEERING_VERSION	20
 #define DRV_MODULE_VERSION __stringify(QEDE_MAJOR_VERSION) "."	\
···
 
 /* Datapath functions definition */
 netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev);
+u16 qede_select_queue(struct net_device *dev, struct sk_buff *skb,
+		      struct net_device *sb_dev,
+		      select_queue_fallback_t fallback);
 netdev_features_t qede_features_check(struct sk_buff *skb,
 				      struct net_device *dev,
 				      netdev_features_t features);

drivers/net/ethernet/qlogic/qede/qede_fp.c

···
 	return NETDEV_TX_OK;
 }
 
+u16 qede_select_queue(struct net_device *dev, struct sk_buff *skb,
+		      struct net_device *sb_dev,
+		      select_queue_fallback_t fallback)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+	int total_txq;
+
+	total_txq = QEDE_TSS_COUNT(edev) * edev->dev_info.num_tc;
+
+	return QEDE_TSS_COUNT(edev) ?
+		fallback(dev, skb, NULL) % total_txq :  0;
+}
+
 /* 8B udp header + 8B base tunnel header + 32B option length */
 #define QEDE_MAX_TUN_HDR_LEN 48
 

drivers/net/ethernet/qlogic/qede/qede_main.c

···
 	.ndo_open = qede_open,
 	.ndo_stop = qede_close,
 	.ndo_start_xmit = qede_start_xmit,
+	.ndo_select_queue = qede_select_queue,
 	.ndo_set_rx_mode = qede_set_rx_mode,
 	.ndo_set_mac_address = qede_set_mac_addr,
 	.ndo_validate_addr = eth_validate_addr,
···
 	.ndo_open = qede_open,
 	.ndo_stop = qede_close,
 	.ndo_start_xmit = qede_start_xmit,
+	.ndo_select_queue = qede_select_queue,
 	.ndo_set_rx_mode = qede_set_rx_mode,
 	.ndo_set_mac_address = qede_set_mac_addr,
 	.ndo_validate_addr = eth_validate_addr,
···
 	.ndo_open = qede_open,
 	.ndo_stop = qede_close,
 	.ndo_start_xmit = qede_start_xmit,
+	.ndo_select_queue = qede_select_queue,
 	.ndo_set_rx_mode = qede_set_rx_mode,
 	.ndo_set_mac_address = qede_set_mac_addr,
 	.ndo_validate_addr = eth_validate_addr,

drivers/net/ethernet/realtek/8139cp.c

···
 			}
 			bytes_compl += skb->len;
 			pkts_compl++;
-			dev_kfree_skb_irq(skb);
+			dev_consume_skb_irq(skb);
 		}
 
 		cp->tx_skb[tx_tail] = NULL;

drivers/net/ethernet/smsc/epic100.c

···
 		skb = ep->tx_skbuff[entry];
 		pci_unmap_single(ep->pci_dev, ep->tx_ring[entry].bufaddr,
 				 skb->len, PCI_DMA_TODEVICE);
-		dev_kfree_skb_irq(skb);
+		dev_consume_skb_irq(skb);
 		ep->tx_skbuff[entry] = NULL;
 	}
 

drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c

···
 	}
 
 	ret = phy_power_on(bsp_priv, true);
-	if (ret)
+	if (ret) {
+		gmac_clk_enable(bsp_priv, false);
 		return ret;
+	}
 
 	pm_runtime_enable(dev);
 	pm_runtime_get_sync(dev);

drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c

···
 {
 	unsigned long clk = clk_get_rate(priv->plat->stmmac_clk);
 
-	if (!clk)
-		return 0;
+	if (!clk) {
+		clk = priv->plat->clk_ref_rate;
+		if (!clk)
+			return 0;
+	}
 
 	return (usec * (clk / 1000000)) / 256;
 }
···
 {
 	unsigned long clk = clk_get_rate(priv->plat->stmmac_clk);
 
-	if (!clk)
-		return 0;
+	if (!clk) {
+		clk = priv->plat->clk_ref_rate;
+		if (!clk)
+			return 0;
+	}
 
 	return (riwt * 256) / (clk / 1000000);
 }

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

···
 
 	tx_q = &priv->tx_queue[queue];
 
+	if (priv->tx_path_in_lpi_mode)
+		stmmac_disable_eee_mode(priv);
+
 	/* Manage oversized TCP frames for GMAC4 device */
 	if (skb_is_gso(skb) && priv->tso) {
-		if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))
+		if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
+			/*
+			 * There is no way to determine the number of TSO
+			 * capable Queues. Let's use always the Queue 0
+			 * because if TSO is supported then at least this
+			 * one will be capable.
+			 */
+			skb_set_queue_mapping(skb, 0);
+
 			return stmmac_tso_xmit(skb, dev);
+		}
 	}
 
 	if (unlikely(stmmac_tx_avail(priv, queue) < nfrags + 1)) {
···
 		}
 		return NETDEV_TX_BUSY;
 	}
-
-	if (priv->tx_path_in_lpi_mode)
-		stmmac_disable_eee_mode(priv);
 
 	entry = tx_q->cur_tx;
 	first_entry = entry;

drivers/net/ethernet/sun/cassini.c

···
 		cp->net_stats[ring].tx_packets++;
 		cp->net_stats[ring].tx_bytes += skb->len;
 		spin_unlock(&cp->stat_lock[ring]);
-		dev_kfree_skb_irq(skb);
+		dev_consume_skb_irq(skb);
 	}
 	cp->tx_old[ring] = entry;
 

drivers/net/ethernet/sun/sunbmac.c

···
 
 		DTX(("skb(%p) ", skb));
 		bp->tx_skbs[elem] = NULL;
-		dev_kfree_skb_irq(skb);
+		dev_consume_skb_irq(skb);
 
 		elem = NEXT_TX(elem);
 	}

drivers/net/ethernet/sun/sunhme.c

···
 			this = &txbase[elem];
 		}
 
-		dev_kfree_skb_irq(skb);
+		dev_consume_skb_irq(skb);
 		dev->stats.tx_packets++;
 	}
 	hp->tx_old = elem;

drivers/net/ethernet/tehuti/tehuti.c

···
 		tx_level -= db->rptr->len;	/* '-' koz len is negative */
 
 		/* now should come skb pointer - free it */
-		dev_kfree_skb_irq(db->rptr->addr.skb);
+		dev_consume_skb_irq(db->rptr->addr.skb);
 		bdx_tx_db_inc_rptr(db);
 	}
 

drivers/net/ethernet/ti/cpmac.c

···
 			netdev_dbg(dev, "sent 0x%p, len=%d\n",
 				   desc->skb, desc->skb->len);
 
-		dev_kfree_skb_irq(desc->skb);
+		dev_consume_skb_irq(desc->skb);
 		desc->skb = NULL;
 		if (__netif_subqueue_stopped(dev, queue))
 			netif_wake_subqueue(dev, queue);

drivers/net/ethernet/via/via-velocity.c

···
 		dma_unmap_single(vptr->dev, tdinfo->skb_dma[i],
 				 le16_to_cpu(pktlen), DMA_TO_DEVICE);
 	}
-	dev_kfree_skb_irq(skb);
+	dev_consume_skb_irq(skb);
 	tdinfo->skb = NULL;
 }
 

drivers/net/fddi/defxx.c

···
 				 bp->descr_block_virt->xmt_data[comp].long_1,
 				 p_xmt_drv_descr->p_skb->len,
 				 DMA_TO_DEVICE);
-		dev_kfree_skb_irq(p_xmt_drv_descr->p_skb);
+		dev_consume_skb_irq(p_xmt_drv_descr->p_skb);
 
 		/*
 		 * Move to start of next packet by updating completion index

drivers/net/geneve.c

···
 	}
 #if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6: {
-		struct rt6_info *rt = rt6_lookup(geneve->net,
-						 &info->key.u.ipv6.dst, NULL, 0,
-						 NULL, 0);
+		struct rt6_info *rt;
+
+		if (!__in6_dev_get(dev))
+			break;
+
+		rt = rt6_lookup(geneve->net, &info->key.u.ipv6.dst, NULL, 0,
+				NULL, 0);
 
 		if (rt && rt->dst.dev)
 			ldev_mtu = rt->dst.dev->mtu - GENEVE_IPV6_HLEN;

drivers/net/ieee802154/mcr20a.c

···
 		}
 		break;
 	case (DAR_IRQSTS1_RXIRQ | DAR_IRQSTS1_SEQIRQ):
-			/* rx is starting */
-			dev_dbg(printdev(lp), "RX is starting\n");
-			mcr20a_handle_rx(lp);
+		/* rx is starting */
+		dev_dbg(printdev(lp), "RX is starting\n");
+		mcr20a_handle_rx(lp);
 		break;
 	case (DAR_IRQSTS1_RXIRQ | DAR_IRQSTS1_TXIRQ | DAR_IRQSTS1_SEQIRQ):
 		if (lp->is_tx) {

drivers/net/ipvlan/ipvlan_main.c

···
 			err = ipvlan_register_nf_hook(read_pnet(&port->pnet));
 			if (!err) {
 				mdev->l3mdev_ops = &ipvl_l3mdev_ops;
-				mdev->priv_flags |= IFF_L3MDEV_MASTER;
+				mdev->priv_flags |= IFF_L3MDEV_RX_HANDLER;
 			} else
 				goto fail;
 		} else if (port->mode == IPVLAN_MODE_L3S) {
 			/* Old mode was L3S */
-			mdev->priv_flags &= ~IFF_L3MDEV_MASTER;
+			mdev->priv_flags &= ~IFF_L3MDEV_RX_HANDLER;
 			ipvlan_unregister_nf_hook(read_pnet(&port->pnet));
 			mdev->l3mdev_ops = NULL;
 		}
···
 	struct sk_buff *skb;
 
 	if (port->mode == IPVLAN_MODE_L3S) {
-		dev->priv_flags &= ~IFF_L3MDEV_MASTER;
+		dev->priv_flags &= ~IFF_L3MDEV_RX_HANDLER;
 		ipvlan_unregister_nf_hook(dev_net(dev));
 		dev->l3mdev_ops = NULL;
 	}

drivers/net/phy/dp83640.c

···
 			struct phy_txts *phy_txts)
 {
 	struct skb_shared_hwtstamps shhwtstamps;
+	struct dp83640_skb_info *skb_info;
 	struct sk_buff *skb;
-	u64 ns;
 	u8 overflow;
+	u64 ns;
 
 	/* We must already have the skb that triggered this. */
-
+again:
 	skb = skb_dequeue(&dp83640->tx_queue);
-
 	if (!skb) {
 		pr_debug("have timestamp but tx_queue empty\n");
 		return;
···
 			skb = skb_dequeue(&dp83640->tx_queue);
 		}
 		return;
+	}
+	skb_info = (struct dp83640_skb_info *)skb->cb;
+	if (time_after(jiffies, skb_info->tmo)) {
+		kfree_skb(skb);
+		goto again;
 	}
 
 	ns = phy2txts(phy_txts);
···
 static void dp83640_txtstamp(struct phy_device *phydev,
 			     struct sk_buff *skb, int type)
 {
+	struct dp83640_skb_info *skb_info = (struct dp83640_skb_info *)skb->cb;
 	struct dp83640_private *dp83640 = phydev->priv;
 
 	switch (dp83640->hwts_tx_en) {
···
 		/* fall through */
 	case HWTSTAMP_TX_ON:
 		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+		skb_info->tmo = jiffies + SKB_TIMESTAMP_TIMEOUT;
 		skb_queue_tail(&dp83640->tx_queue, skb);
 		break;
 

drivers/net/phy/marvell.c

···
 
 	/* SGMII-to-Copper mode initialization */
 	if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
-
 		/* Select page 18 */
 		err = marvell_set_page(phydev, 18);
 		if (err < 0)
···
 		err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
 		if (err < 0)
 			return err;
-
-		/* There appears to be a bug in the 88e1512 when used in
-		 * SGMII to copper mode, where the AN advertisement register
-		 * clears the pause bits each time a negotiation occurs.
-		 * This means we can never be truely sure what was advertised,
-		 * so disable Pause support.
-		 */
-		linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
-				   phydev->supported);
-		linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT,
-				   phydev->supported);
-		linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
-				   phydev->advertising);
-		linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT,
-				   phydev->advertising);
 	}
 
 	return m88e1318_config_init(phydev);

drivers/net/tun.c

···
 	if (rtnl_dereference(tun->xdp_prog))
 		sock_set_flag(&tfile->sk, SOCK_XDP);
 
-	tun_set_real_num_queues(tun);
-
 	/* device is allowed to go away first, so no need to hold extra
 	 * refcnt.
 	 */
···
 	rcu_assign_pointer(tfile->tun, tun);
 	rcu_assign_pointer(tun->tfiles[tun->numqueues], tfile);
 	tun->numqueues++;
+	tun_set_real_num_queues(tun);
 out:
 	return err;
 }

drivers/net/virtio_net.c

···
 #define VIRTIO_XDP_TX		BIT(0)
 #define VIRTIO_XDP_REDIR	BIT(1)
 
+#define VIRTIO_XDP_FLAG	BIT(0)
+
 /* RX packet size EWMA. The average packet size is used to determine the packet
  * buffer size when refilling RX rings. As the entire RX ring may be refilled
  * at once, the weight is chosen so that the EWMA will be insensitive to short-
···
 	 */
 	char padding[4];
 };
+
+static bool is_xdp_frame(void *ptr)
+{
+	return (unsigned long)ptr & VIRTIO_XDP_FLAG;
+}
+
+static void *xdp_to_ptr(struct xdp_frame *ptr)
+{
+	return (void *)((unsigned long)ptr | VIRTIO_XDP_FLAG);
+}
+
+static struct xdp_frame *ptr_to_xdp(void *ptr)
+{
+	return (struct xdp_frame *)((unsigned long)ptr & ~VIRTIO_XDP_FLAG);
+}
 
 /* Converting between virtqueue no. and kernel tx/rx queue no.
  * 0:rx0 1:tx0 2:rx1 3:tx1 ... 2N:rxN 2N+1:txN 2N+2:cvq
···
 
 	sg_init_one(sq->sg, xdpf->data, xdpf->len);
 
-	err = virtqueue_add_outbuf(sq->vq, sq->sg, 1, xdpf, GFP_ATOMIC);
+	err = virtqueue_add_outbuf(sq->vq, sq->sg, 1, xdp_to_ptr(xdpf),
+				   GFP_ATOMIC);
 	if (unlikely(err))
 		return -ENOSPC; /* Caller handle free/refcnt */
 
···
 {
 	struct virtnet_info *vi = netdev_priv(dev);
 	struct receive_queue *rq = vi->rq;
-	struct xdp_frame *xdpf_sent;
 	struct bpf_prog *xdp_prog;
 	struct send_queue *sq;
 	unsigned int len;
+	int packets = 0;
+	int bytes = 0;
 	int drops = 0;
 	int kicks = 0;
 	int ret, err;
+	void *ptr;
 	int i;
+
+	/* Only allow ndo_xdp_xmit if XDP is loaded on dev, as this
+	 * indicate XDP resources have been successfully allocated.
+	 */
+	xdp_prog = rcu_dereference(rq->xdp_prog);
+	if (!xdp_prog)
+		return -ENXIO;
 
 	sq = virtnet_xdp_sq(vi);
 
···
 		goto out;
 	}
 
-	/* Only allow ndo_xdp_xmit if XDP is loaded on dev, as this
-	 * indicate XDP resources have been successfully allocated.
-	 */
-	xdp_prog = rcu_dereference(rq->xdp_prog);
-	if (!xdp_prog) {
-		ret = -ENXIO;
-		drops = n;
-		goto out;
-	}
-
 	/* Free up any pending old buffers before queueing new ones. */
-	while ((xdpf_sent = virtqueue_get_buf(sq->vq, &len)) != NULL)
-		xdp_return_frame(xdpf_sent);
+	while ((ptr = virtqueue_get_buf(sq->vq, &len)) != NULL) {
+		if (likely(is_xdp_frame(ptr))) {
+			struct xdp_frame *frame = ptr_to_xdp(ptr);
+
+			bytes += frame->len;
+			xdp_return_frame(frame);
+		} else {
+			struct sk_buff *skb = ptr;
+
+			bytes += skb->len;
+			napi_consume_skb(skb, false);
+		}
+		packets++;
+	}
 
 	for (i = 0; i < n; i++) {
 		struct xdp_frame *xdpf = frames[i];
···
 	}
 out:
 	u64_stats_update_begin(&sq->stats.syncp);
+	sq->stats.bytes += bytes;
+	sq->stats.packets += packets;
 	sq->stats.xdp_tx += n;
 	sq->stats.xdp_tx_drops += drops;
 	sq->stats.kicks += kicks;
···
 
 static void free_old_xmit_skbs(struct send_queue *sq, bool in_napi)
 {
-	struct sk_buff *skb;
 	unsigned int len;
 	unsigned int packets = 0;
 	unsigned int bytes = 0;
+	void *ptr;
 
-	while ((skb = virtqueue_get_buf(sq->vq, &len)) != NULL) {
-		pr_debug("Sent skb %p\n", skb);
+	while ((ptr = virtqueue_get_buf(sq->vq, &len)) != NULL) {
+		if (likely(!is_xdp_frame(ptr))) {
+			struct sk_buff *skb = ptr;
 
-		bytes += skb->len;
+			pr_debug("Sent skb %p\n", skb);
+
+			bytes += skb->len;
+			napi_consume_skb(skb, in_napi);
+		} else {
+			struct xdp_frame *frame = ptr_to_xdp(ptr);
+
+			bytes += frame->len;
+			xdp_return_frame(frame);
+		}
 		packets++;
-
-		napi_consume_skb(skb, in_napi);
 	}
 
 	/* Avoid overhead when no packets have been processed
···
 	u64_stats_update_end(&sq->stats.syncp);
 }
 
+static bool is_xdp_raw_buffer_queue(struct virtnet_info *vi, int q)
+{
+	if (q < (vi->curr_queue_pairs - vi->xdp_queue_pairs))
+		return false;
+	else if (q < vi->curr_queue_pairs)
+		return true;
+	else
+		return false;
+}
+
 static void virtnet_poll_cleantx(struct receive_queue *rq)
 {
 	struct virtnet_info *vi = rq->vq->vdev->priv;
···
 	struct send_queue *sq = &vi->sq[index];
 	struct netdev_queue *txq = netdev_get_tx_queue(vi->dev, index);
 
-	if (!sq->napi.weight)
+	if (!sq->napi.weight || is_xdp_raw_buffer_queue(vi, index))
 		return;
 
 	if (__netif_tx_trylock(txq)) {
···
 {
 	struct send_queue *sq = container_of(napi, struct send_queue, napi);
 	struct virtnet_info *vi = sq->vq->vdev->priv;
-	struct netdev_queue *txq = netdev_get_tx_queue(vi->dev, vq2txq(sq->vq));
+	unsigned int index = vq2txq(sq->vq);
+	struct netdev_queue *txq;
 
+	if (unlikely(is_xdp_raw_buffer_queue(vi, index))) {
+		/* We don't need to enable cb for XDP */
+		napi_complete_done(napi, 0);
+		return 0;
+	}
+
+	txq = netdev_get_tx_queue(vi->dev, index);
 	__netif_tx_lock(txq, raw_smp_processor_id());
 	free_old_xmit_skbs(sq, true);
 	__netif_tx_unlock(txq);
···
 		return -ENOMEM;
 	}
 
+	old_prog = rtnl_dereference(vi->rq[0].xdp_prog);
+	if (!prog && !old_prog)
+		return 0;
+
 	if (prog) {
 		prog = bpf_prog_add(prog, vi->max_queue_pairs - 1);
 		if (IS_ERR(prog))
···
 	}
 
 	/* Make sure NAPI is not using any XDP TX queues for RX. */
-	if (netif_running(dev))
-		for (i = 0; i < vi->max_queue_pairs; i++)
+	if (netif_running(dev)) {
+		for (i = 0; i < vi->max_queue_pairs; i++) {
 			napi_disable(&vi->rq[i].napi);
+			virtnet_napi_tx_disable(&vi->sq[i].napi);
+		}
+	}
 
-	netif_set_real_num_rx_queues(dev, curr_qp + xdp_qp);
+	if (!prog) {
+		for (i = 0; i < vi->max_queue_pairs; i++) {
+			rcu_assign_pointer(vi->rq[i].xdp_prog, prog);
+			if (i == 0)
+				virtnet_restore_guest_offloads(vi);
+		}
+		synchronize_net();
+	}
+
 	err = _virtnet_set_queues(vi, curr_qp + xdp_qp);
 	if (err)
 		goto err;
+	netif_set_real_num_rx_queues(dev, curr_qp + xdp_qp);
 	vi->xdp_queue_pairs = xdp_qp;
 
-	for (i = 0; i < vi->max_queue_pairs; i++) {
-		old_prog = rtnl_dereference(vi->rq[i].xdp_prog);
-		rcu_assign_pointer(vi->rq[i].xdp_prog, prog);
-		if (i == 0) {
-			if (!old_prog)
+	if (prog) {
+		for (i = 0; i < vi->max_queue_pairs; i++) {
+			rcu_assign_pointer(vi->rq[i].xdp_prog, prog);
+			if (i == 0 && !old_prog)
 				virtnet_clear_guest_offloads(vi);
-			if (!prog)
-				virtnet_restore_guest_offloads(vi);
 		}
+	}
+
+	for (i = 0; i < vi->max_queue_pairs; i++) {
 		if (old_prog)
 			bpf_prog_put(old_prog);
-		if (netif_running(dev))
+		if (netif_running(dev)) {
 			virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi);
+			virtnet_napi_tx_enable(vi, vi->sq[i].vq,
+					       &vi->sq[i].napi);
+		}
 	}
 
 	return 0;
 
 err:
-	for (i = 0; i < vi->max_queue_pairs; i++)
-		virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi);
+	if (!prog) {
+		virtnet_clear_guest_offloads(vi);
+		for (i = 0; i < vi->max_queue_pairs; i++)
+			rcu_assign_pointer(vi->rq[i].xdp_prog, old_prog);
+	}
+
+	if (netif_running(dev)) {
+		for (i = 0; i < vi->max_queue_pairs; i++) {
+			virtnet_napi_enable(vi->rq[i].vq, &vi->rq[i].napi);
+			virtnet_napi_tx_enable(vi, vi->sq[i].vq,
+					       &vi->sq[i].napi);
+		}
+	}
 	if (prog)
 		bpf_prog_sub(prog, vi->max_queue_pairs - 1);
 	return err;
···
 			put_page(vi->rq[i].alloc_frag.page);
 }
 
-static bool is_xdp_raw_buffer_queue(struct virtnet_info *vi, int q)
-{
-	if (q < (vi->curr_queue_pairs - vi->xdp_queue_pairs))
-		return false;
-	else if (q < vi->curr_queue_pairs)
-		return true;
-	else
-		return false;
-}
-
 static void free_unused_bufs(struct virtnet_info *vi)
 {
 	void *buf;
···
 	for (i = 0; i < vi->max_queue_pairs; i++) {
 		struct virtqueue *vq = vi->sq[i].vq;
 		while ((buf = virtqueue_detach_unused_buf(vq)) != NULL) {
-			if (!is_xdp_raw_buffer_queue(vi, i))
+			if (!is_xdp_frame(buf))
 				dev_kfree_skb(buf);
 			else
-				put_page(virt_to_head_page(buf));
+				xdp_return_frame(ptr_to_xdp(buf));
 		}
 	}
 

drivers/net/wan/dscc4.c

···
 					dev->stats.tx_packets++;
 					dev->stats.tx_bytes += skb->len;
 				}
-				dev_kfree_skb_irq(skb);
+				dev_consume_skb_irq(skb);
 				dpriv->tx_skbuff[cur] = NULL;
 				++dpriv->tx_dirty;
 			} else {

drivers/net/wan/fsl_ucc_hdlc.c

···
 		memset(priv->tx_buffer +
 		       (be32_to_cpu(bd->buf) - priv->dma_tx_addr),
 		       0, skb->len);
-		dev_kfree_skb_irq(skb);
+		dev_consume_skb_irq(skb);
 
 		priv->tx_skbuff[priv->skb_dirtytx] = NULL;
 		priv->skb_dirtytx =

drivers/net/wireless/ath/ath10k/core.c

···
 	{
 		.id = WCN3990_HW_1_0_DEV_VERSION,
 		.dev_id = 0,
-		.bus = ATH10K_BUS_PCI,
+		.bus = ATH10K_BUS_SNOC,
 		.name = "wcn3990 hw1.0",
 		.continuous_frag_desc = true,
 		.tx_chain_mask = 0x7,

drivers/net/wireless/intel/iwlwifi/Kconfig

···
 config IWLWIFI
 	tristate "Intel Wireless WiFi Next Gen AGN - Wireless-N/Advanced-N/Ultimate-N (iwlwifi) "
-	depends on PCI && HAS_IOMEM
+	depends on PCI && HAS_IOMEM && CFG80211
 	select FW_LOADER
 	---help---
 	  Select to build the driver supporting the:
···
 config IWLWIFI_LEDS
 	bool
 	depends on LEDS_CLASS=y || LEDS_CLASS=IWLWIFI
+	depends on IWLMVM || IWLDVM
 	select LEDS_TRIGGERS
 	select MAC80211_LEDS
 	default y

drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c

···
 	mt76x02_add_rate_power_offset(t, delta);
 }
 
-void mt76x0_get_power_info(struct mt76x02_dev *dev, u8 *info)
+void mt76x0_get_power_info(struct mt76x02_dev *dev, s8 *tp)
 {
 	struct mt76x0_chan_map {
 		u8 chan;
 		u8 offset;
 	} chan_map[] = {
-		{   2,  0 }, {   4,  1 }, {   6,  2 }, {   8,  3 },
-		{  10,  4 }, {  12,  5 }, {  14,  6 }, {  38,  0 },
-		{  44,  1 }, {  48,  2 }, {  54,  3 }, {  60,  4 },
-		{  64,  5 }, { 102,  6 }, { 108,  7 }, { 112,  8 },
-		{ 118,  9 }, { 124, 10 }, { 128, 11 }, { 134, 12 },
-		{ 140, 13 }, { 151, 14 }, { 157, 15 }, { 161, 16 },
-		{ 167, 17 }, { 171, 18 }, { 173, 19 },
+		{   2,  0 }, {   4,  2 }, {   6,  4 }, {   8,  6 },
+		{  10,  8 }, {  12, 10 }, {  14, 12 }, {  38,  0 },
+		{  44,  2 }, {  48,  4 }, {  54,  6 }, {  60,  8 },
+		{  64, 10 }, { 102, 12 }, { 108, 14 }, { 112, 16 },
+		{ 118, 18 }, { 124, 20 }, { 128, 22 }, { 134, 24 },
+		{ 140, 26 }, { 151, 28 }, { 157, 30 }, { 161, 32 },
+		{ 167, 34 }, { 171, 36 }, { 175, 38 },
 	};
 	struct ieee80211_channel *chan = dev->mt76.chandef.chan;
 	u8 offset, addr;
+	int i, idx = 0;
 	u16 data;
-	int i;
 
 	if (mt76x0_tssi_enabled(dev)) {
 		s8 target_power;
···
 		else
 			data = mt76x02_eeprom_get(dev, MT_EE_2G_TARGET_POWER);
 		target_power = (data & 0xff) - dev->mt76.rate_power.ofdm[7];
-		info[0] = target_power + mt76x0_get_delta(dev);
-		info[1] = 0;
+		*tp = target_power + mt76x0_get_delta(dev);
 
 		return;
 	}
 
 	for (i = 0; i < ARRAY_SIZE(chan_map); i++) {
-		if (chan_map[i].chan <= chan->hw_value) {
+		if (chan->hw_value <= chan_map[i].chan) {
+			idx = (chan->hw_value == chan_map[i].chan);
 			offset = chan_map[i].offset;
 			break;
 		}
···
 		addr = MT_EE_TX_POWER_DELTA_BW80 + offset;
 	} else {
 		switch (chan->hw_value) {
+		case 42:
+			offset = 2;
+			break;
 		case 58:
 			offset = 8;
 			break;
 		case 106:
 			offset = 14;
 			break;
-		case 112:
+		case 122:
 			offset = 20;
 			break;
 		case 155:
···
 	}
 
 	data = mt76x02_eeprom_get(dev, addr);
-
-	info[0] = data;
-	if (!info[0] || info[0] > 0x3f)
-		info[0] = 5;
-
-	info[1] = data >> 8;
-	if (!info[1] || info[1] > 0x3f)
-		info[1] = 5;
+	*tp = data >> (8 * idx);
+	if (*tp < 0 || *tp > 0x3f)
+		*tp = 5;
 }
 
 static int mt76x0_check_eeprom(struct mt76x02_dev *dev)

drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.h

···
 int mt76x0_eeprom_init(struct mt76x02_dev *dev);
 void mt76x0_read_rx_gain(struct mt76x02_dev *dev);
 void mt76x0_get_tx_power_per_rate(struct mt76x02_dev *dev);
-void mt76x0_get_power_info(struct mt76x02_dev *dev, u8 *info);
+void mt76x0_get_power_info(struct mt76x02_dev *dev, s8 *tp);
 
 static inline s8 s6_to_s8(u32 val)
 {

drivers/net/wireless/mediatek/mt76/mt76x0/phy.c

···
 void mt76x0_phy_set_txpower(struct mt76x02_dev *dev)
 {
 	struct mt76_rate_power *t = &dev->mt76.rate_power;
-	u8 info[2];
+	s8 info;
 
 	mt76x0_get_tx_power_per_rate(dev);
-	mt76x0_get_power_info(dev, info);
+	mt76x0_get_power_info(dev, &info);
 
-	mt76x02_add_rate_power_offset(t, info[0]);
+	mt76x02_add_rate_power_offset(t, info);
 	mt76x02_limit_rate_power(t, dev->mt76.txpower_conf);
 	dev->mt76.txpower_cur = mt76x02_get_max_rate_power(t);
-	mt76x02_add_rate_power_offset(t, -info[0]);
+	mt76x02_add_rate_power_offset(t, -info);
 
-	mt76x02_phy_set_txpower(dev, info[0], info[1]);
+	mt76x02_phy_set_txpower(dev, info, info);
 }
 
 void mt76x0_phy_calibrate(struct mt76x02_dev *dev, bool power_on)

drivers/net/wireless/ti/wlcore/sdio.c

···
 	}
 
 	sdio_claim_host(func);
+	/*
+	 * To guarantee that the SDIO card is power cycled, as required to make
+	 * the FW programming to succeed, let's do a brute force HW reset.
+	 */
+	mmc_hw_reset(card->host);
+
 	sdio_enable_func(func);
 	sdio_release_host(func);
 
···
 {
 	struct sdio_func *func = dev_to_sdio_func(glue->dev);
 	struct mmc_card *card = func->card;
-	int error;
 
 	sdio_claim_host(func);
 	sdio_disable_func(func);
 	sdio_release_host(func);
 
 	/* Let runtime PM know the card is powered off */
-	error = pm_runtime_put(&card->dev);
-	if (error < 0 && error != -EBUSY) {
-		dev_err(&card->dev, "%s failed: %i\n", __func__, error);
-
-		return error;
-	}
-
+	pm_runtime_put(&card->dev);
 	return 0;
 }
 

drivers/nvme/host/core.c

···
 	 * effects say only one namespace is affected.
 	 */
 	if (effects & (NVME_CMD_EFFECTS_LBCC | NVME_CMD_EFFECTS_CSE_MASK)) {
+		mutex_lock(&ctrl->scan_lock);
 		nvme_start_freeze(ctrl);
 		nvme_wait_freeze(ctrl);
 	}
···
 	 */
 	if (effects & NVME_CMD_EFFECTS_LBCC)
 		nvme_update_formats(ctrl);
-	if (effects & (NVME_CMD_EFFECTS_LBCC | NVME_CMD_EFFECTS_CSE_MASK))
+	if (effects & (NVME_CMD_EFFECTS_LBCC | NVME_CMD_EFFECTS_CSE_MASK)) {
 		nvme_unfreeze(ctrl);
+		mutex_unlock(&ctrl->scan_lock);
+	}
 	if (effects & NVME_CMD_EFFECTS_CCC)
 		nvme_init_identify(ctrl);
 	if (effects & (NVME_CMD_EFFECTS_NIC | NVME_CMD_EFFECTS_NCC))
···
 	if (nvme_identify_ctrl(ctrl, &id))
 		return;
 
+	mutex_lock(&ctrl->scan_lock);
 	nn = le32_to_cpu(id->nn);
 	if (ctrl->vs >= NVME_VS(1, 1, 0) &&
 	    !(ctrl->quirks & NVME_QUIRK_IDENTIFY_CNS)) {
···
 	}
 	nvme_scan_ns_sequential(ctrl, nn);
 out_free_id:
+	mutex_unlock(&ctrl->scan_lock);
 	kfree(id);
 	down_write(&ctrl->namespaces_rwsem);
 	list_sort(NULL, &ctrl->namespaces, ns_cmp);
···
 
 	ctrl->state = NVME_CTRL_NEW;
 	spin_lock_init(&ctrl->lock);
+	mutex_init(&ctrl->scan_lock);
 	INIT_LIST_HEAD(&ctrl->namespaces);
 	init_rwsem(&ctrl->namespaces_rwsem);
 	ctrl->dev = dev;

drivers/nvme/host/nvme.h

···
 	enum nvme_ctrl_state state;
 	bool identified;
 	spinlock_t lock;
+	struct mutex scan_lock;
 	const struct nvme_ctrl_ops *ops;
 	struct request_queue *admin_q;
 	struct request_queue *connect_q;

drivers/nvme/host/pci.c

···
 	if (dev->ctrl.ctrl_config & NVME_CC_ENABLE)
 		nvme_dev_disable(dev, false);
 
-	/*
-	 * Introduce CONNECTING state from nvme-fc/rdma transports to mark the
-	 * initializing procedure here.
-	 */
-	if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_CONNECTING)) {
-		dev_warn(dev->ctrl.device,
-			"failed to mark controller CONNECTING\n");
-		goto out;
-	}
-
+	mutex_lock(&dev->shutdown_lock);
 	result = nvme_pci_enable(dev);
 	if (result)
 		goto out;
···
 	 */
 	dev->ctrl.max_hw_sectors = NVME_MAX_KB_SZ << 1;
 	dev->ctrl.max_segments = NVME_MAX_SEGS;
+	mutex_unlock(&dev->shutdown_lock);
+
+	/*
+	 * Introduce CONNECTING state from nvme-fc/rdma transports to mark the
+	 * initializing procedure here.
+	 */
+	if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_CONNECTING)) {
+		dev_warn(dev->ctrl.device,
+			"failed to mark controller CONNECTING\n");
+		goto out;
+	}
 
 	result = nvme_init_identify(&dev->ctrl);
 	if (result)

drivers/pci/controller/dwc/pci-imx6.c

···
 	imx6_pcie->pd_pcie = dev_pm_domain_attach_by_name(dev, "pcie");
 	if (IS_ERR(imx6_pcie->pd_pcie))
 		return PTR_ERR(imx6_pcie->pd_pcie);
+	/* Do nothing when power domain missing */
+	if (!imx6_pcie->pd_pcie)
+		return 0;
 	link = device_link_add(dev, imx6_pcie->pd_pcie,
 			DL_FLAG_STATELESS |
 			DL_FLAG_PM_RUNTIME |
···
 	if (IS_ERR(imx6_pcie->pd_pcie_phy))
 		return PTR_ERR(imx6_pcie->pd_pcie_phy);
 
-	device_link_add(dev, imx6_pcie->pd_pcie_phy,
+	link = device_link_add(dev, imx6_pcie->pd_pcie_phy,
 			DL_FLAG_STATELESS |
 			DL_FLAG_PM_RUNTIME |
 			DL_FLAG_RPM_ACTIVE);
-	if (IS_ERR(link)) {
-		dev_err(dev, "Failed to add device_link to pcie_phy pd: %ld\n", PTR_ERR(link));
-		return PTR_ERR(link);
+	if (!link) {
+		dev_err(dev, "Failed to add device_link to pcie_phy pd.\n");
+		return -EINVAL;
 	}
 
 	return 0;

drivers/pci/controller/dwc/pcie-armada8k.c

···
 #include <linux/resource.h>
 #include <linux/of_pci.h>
 #include <linux/of_irq.h>
-#include <linux/gpio/consumer.h>
 
 #include "pcie-designware.h"
 
···
 	struct dw_pcie *pci;
 	struct clk *clk;
 	struct clk *clk_reg;
-	struct gpio_desc *reset_gpio;
 };
 
 #define PCIE_VENDOR_REGS_OFFSET		0x8000
···
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 	struct armada8k_pcie *pcie = to_armada8k_pcie(pci);
 
-	if (pcie->reset_gpio) {
-		/* assert and then deassert the reset signal */
-		gpiod_set_value_cansleep(pcie->reset_gpio, 1);
-		msleep(100);
-		gpiod_set_value_cansleep(pcie->reset_gpio, 0);
-	}
 	dw_pcie_setup_rc(pp);
 	armada8k_pcie_establish_link(pcie);
 
···
 	if (IS_ERR(pci->dbi_base)) {
 		dev_err(dev, "couldn't remap regs base %p\n", base);
 		ret = PTR_ERR(pci->dbi_base);
-		goto fail_clkreg;
-	}
-
-	/* Get reset gpio signal and hold asserted (logically high) */
-	pcie->reset_gpio = devm_gpiod_get_optional(dev, "reset",
-						   GPIOD_OUT_HIGH);
-	if (IS_ERR(pcie->reset_gpio)) {
-		ret = PTR_ERR(pcie->reset_gpio);
 		goto fail_clkreg;
 	}
 

drivers/pci/quirks.c

···
 		break;
 	}
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SYNOPSYS, PCI_ANY_ID,
-			 quirk_synopsys_haps);
+DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_SYNOPSYS, PCI_ANY_ID,
+			       PCI_CLASS_SERIAL_USB_XHCI, 0,
+			       quirk_synopsys_haps);
 
 /*
  * Let's make the southbridge information explicit instead of having to

drivers/pinctrl/intel/pinctrl-cherryview.c

···
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
 			DMI_MATCH(DMI_PRODUCT_FAMILY, "Intel_Strago"),
-			DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
 		},
 	},
 	{
···
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "HP"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Setzer"),
-			DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
 		},
 	},
 	{
···
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Cyan"),
-			DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
 		},
 	},
 	{
···
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Celes"),
-			DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
 		},
 	},
 	{}

drivers/pinctrl/mediatek/Kconfig

···
 config PINCTRL_MT7623
 	bool "Mediatek MT7623 pin control with generic binding"
 	depends on MACH_MT7623 || COMPILE_TEST
+	depends on OF
 	default MACH_MT7623
 	select PINCTRL_MTK_MOORE
 
 config PINCTRL_MT7629
 	bool "Mediatek MT7629 pin control"
 	depends on MACH_MT7629 || COMPILE_TEST
+	depends on OF
 	default MACH_MT7629
 	select PINCTRL_MTK_MOORE
 
···
 
 config PINCTRL_MT7622
 	bool "MediaTek MT7622 pin control"
+	depends on OF
 	depends on ARM64 || COMPILE_TEST
 	default ARM64 && ARCH_MEDIATEK
 	select PINCTRL_MTK_MOORE

drivers/pinctrl/pinctrl-mcp23s08.c

···
 		break;
 
 	case MCP_TYPE_S18:
+		one_regmap_config =
+			devm_kmemdup(dev, &mcp23x17_regmap,
+				sizeof(struct regmap_config), GFP_KERNEL);
+		if (!one_regmap_config)
+			return -ENOMEM;
 		mcp->regmap = devm_regmap_init(dev, &mcp23sxx_spi_regmap, mcp,
-					       &mcp23x17_regmap);
+					       one_regmap_config);
 		mcp->reg_shift = 1;
 		mcp->chip.ngpio = 16;
 		mcp->chip.label = "mcp23s18";

drivers/pinctrl/sunxi/pinctrl-sun50i-h6.c

···
 static const struct sunxi_pinctrl_desc h6_pinctrl_data = {
 	.pins = h6_pins,
 	.npins = ARRAY_SIZE(h6_pins),
-	.irq_banks = 3,
+	.irq_banks = 4,
 	.irq_bank_map = h6_irq_bank_map,
 	.irq_read_needs_mux = true,
 };

drivers/pinctrl/sunxi/pinctrl-sunxi.c

···
 {
 	struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
 	unsigned short bank = offset / PINS_PER_BANK;
-	struct sunxi_pinctrl_regulator *s_reg = &pctl->regulators[bank];
-	struct regulator *reg;
+	unsigned short bank_offset = bank - pctl->desc->pin_base /
+					    PINS_PER_BANK;
+	struct sunxi_pinctrl_regulator *s_reg = &pctl->regulators[bank_offset];
+	struct regulator *reg = s_reg->regulator;
+	char supply[16];
 	int ret;
 
-	reg = s_reg->regulator;
-	if (!reg) {
-		char supply[16];
-
-		snprintf(supply, sizeof(supply), "vcc-p%c", 'a' + bank);
-		reg = regulator_get(pctl->dev, supply);
-		if (IS_ERR(reg)) {
-			dev_err(pctl->dev, "Couldn't get bank P%c regulator\n",
-				'A' + bank);
-			return PTR_ERR(reg);
-		}
-
-		s_reg->regulator = reg;
-		refcount_set(&s_reg->refcount, 1);
-	} else {
+	if (reg) {
 		refcount_inc(&s_reg->refcount);
+		return 0;
+	}
+
+	snprintf(supply, sizeof(supply), "vcc-p%c", 'a' + bank);
+	reg = regulator_get(pctl->dev, supply);
+	if (IS_ERR(reg)) {
+		dev_err(pctl->dev, "Couldn't get bank P%c regulator\n",
+			'A' + bank);
+		return PTR_ERR(reg);
 	}
 
 	ret = regulator_enable(reg);
···
 		goto out;
 	}
 
+	s_reg->regulator = reg;
+	refcount_set(&s_reg->refcount, 1);
+
 	return 0;
 
 out:
-	if (refcount_dec_and_test(&s_reg->refcount)) {
-		regulator_put(s_reg->regulator);
-		s_reg->regulator = NULL;
-	}
+	regulator_put(s_reg->regulator);
 
 	return ret;
 }
···
 {
 	struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
 	unsigned short bank = offset / PINS_PER_BANK;
-	struct sunxi_pinctrl_regulator *s_reg = &pctl->regulators[bank];
+	unsigned short bank_offset = bank - pctl->desc->pin_base /
+					    PINS_PER_BANK;
+	struct sunxi_pinctrl_regulator *s_reg = &pctl->regulators[bank_offset];
 
 	if (!refcount_dec_and_test(&s_reg->refcount))
 		return 0;

drivers/pinctrl/sunxi/pinctrl-sunxi.h

···
 	struct gpio_chip		*chip;
 	const struct sunxi_pinctrl_desc	*desc;
 	struct device			*dev;
-	struct sunxi_pinctrl_regulator	regulators[12];
+	struct sunxi_pinctrl_regulator	regulators[9];
 	struct irq_domain		*domain;
 	struct sunxi_pinctrl_function	*functions;
 	unsigned			nfunctions;

drivers/platform/x86/Kconfig

···
 config ACPI_CMPC
 	tristate "CMPC Laptop Extras"
 	depends on ACPI && INPUT
+	depends on BACKLIGHT_LCD_SUPPORT
 	depends on RFKILL || RFKILL=n
 	select BACKLIGHT_CLASS_DEVICE
 	help
···
 config SAMSUNG_Q10
 	tristate "Samsung Q10 Extras"
 	depends on ACPI
+	depends on BACKLIGHT_LCD_SUPPORT
 	select BACKLIGHT_CLASS_DEVICE
 	---help---
 	  This driver provides support for backlight control on Samsung Q10

drivers/s390/net/qeth_core.h

···
 #include <linux/hashtable.h>
 #include <linux/ip.h>
 #include <linux/refcount.h>
+#include <linux/workqueue.h>
 
 #include <net/ipv6.h>
 #include <net/if_inet6.h>
···
 	struct qeth_seqno seqno;
 	struct qeth_card_options options;
 
+	struct workqueue_struct *event_wq;
 	wait_queue_head_t wait_q;
 	spinlock_t mclock;
 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
···
 extern const struct attribute_group qeth_device_attr_group;
 extern const struct attribute_group qeth_device_blkt_group;
 extern const struct device_type qeth_generic_devtype;
-extern struct workqueue_struct *qeth_wq;
 
 int qeth_card_hw_is_reachable(struct qeth_card *);
 const char *qeth_get_cardname_short(struct qeth_card *);

drivers/s390/net/qeth_core_main.c

···
 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
 
-struct workqueue_struct *qeth_wq;
-EXPORT_SYMBOL_GPL(qeth_wq);
+static struct workqueue_struct *qeth_wq;
 
 int qeth_card_hw_is_reachable(struct qeth_card *card)
 {
···
 		QETH_DBF_MESSAGE(2, "error %i on device %x when starting next read ccw!\n",
 				 rc, CARD_DEVID(card));
 		atomic_set(&channel->irq_pending, 0);
+		qeth_release_buffer(channel, iob);
 		card->read_or_write_problem = 1;
 		qeth_schedule_recovery(card);
 		wake_up(&card->wait_q);
···
 		rc = qeth_get_problem(card, cdev, irb);
 		if (rc) {
 			card->read_or_write_problem = 1;
+			if (iob)
+				qeth_release_buffer(iob->channel, iob);
 			qeth_clear_ipacmd_list(card);
 			qeth_schedule_recovery(card);
 			goto out;
···
 	CARD_RDEV(card) = gdev->cdev[0];
 	CARD_WDEV(card) = gdev->cdev[1];
 	CARD_DDEV(card) = gdev->cdev[2];
+
+	card->event_wq = alloc_ordered_workqueue("%s", 0, dev_name(&gdev->dev));
+	if (!card->event_wq)
+		goto out_wq;
 	if (qeth_setup_channel(&card->read, true))
 		goto out_ip;
 	if (qeth_setup_channel(&card->write, true))
···
 out_channel:
 	qeth_clean_channel(&card->read);
 out_ip:
+	destroy_workqueue(card->event_wq);
+out_wq:
 	dev_set_drvdata(&gdev->dev, NULL);
 	kfree(card);
 out:
···
 		QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
 		QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
 		atomic_set(&channel->irq_pending, 0);
+		qeth_release_buffer(channel, iob);
 		wake_up(&card->wait_q);
 		return rc;
 	}
···
 			rc);
 		QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
 		atomic_set(&channel->irq_pending, 0);
+		qeth_release_buffer(channel, iob);
 		wake_up(&card->wait_q);
 		return rc;
 	}
···
 	}
 	reply = qeth_alloc_reply(card);
 	if (!reply) {
+		qeth_release_buffer(channel, iob);
 		return -ENOMEM;
 	}
 	reply->callback = reply_cb;
···
 	return 0;
 }
 
-static void qeth_free_qdio_out_buf(struct qeth_qdio_out_q *q)
+static void qeth_free_output_queue(struct qeth_qdio_out_q *q)
 {
 	if (!q)
 		return;
 
+	qeth_clear_outq_buffers(q, 1);
 	qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q);
 	kfree(q);
 }
···
 		card->qdio.out_qs[i]->bufs[j] = NULL;
 	}
 out_freeoutq:
-	while (i > 0) {
-		qeth_free_qdio_out_buf(card->qdio.out_qs[--i]);
-		qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
-	}
+	while (i > 0)
+		qeth_free_output_queue(card->qdio.out_qs[--i]);
 	kfree(card->qdio.out_qs);
 	card->qdio.out_qs = NULL;
 out_freepool:
···
 	qeth_free_buffer_pool(card);
 	/* free outbound qdio_qs */
 	if (card->qdio.out_qs) {
-		for (i = 0; i < card->qdio.no_out_queues; ++i) {
-			qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
-			qeth_free_qdio_out_buf(card->qdio.out_qs[i]);
-		}
+		for (i = 0; i < card->qdio.no_out_queues; i++)
+			qeth_free_output_queue(card->qdio.out_qs[i]);
 		kfree(card->qdio.out_qs);
 		card->qdio.out_qs = NULL;
 	}
···
 	qeth_clean_channel(&card->read);
 	qeth_clean_channel(&card->write);
 	qeth_clean_channel(&card->data);
+	destroy_workqueue(card->event_wq);
 	qeth_free_qdio_buffers(card);
 	unregister_service_level(&card->qeth_service_level);
 	dev_set_drvdata(&card->gdev->dev, NULL);

drivers/s390/net/qeth_l2_main.c

···
 		qeth_clear_cmd_buffers(&card->read);
 		qeth_clear_cmd_buffers(&card->write);
 	}
+
+	flush_workqueue(card->event_wq);
 }
 
 static int qeth_l2_process_inbound_buffer(struct qeth_card *card,
···
 
 	if (cgdev->state == CCWGROUP_ONLINE)
 		qeth_l2_set_offline(cgdev);
+
+	cancel_work_sync(&card->close_dev_work);
 	if (qeth_netdev_is_registered(card->dev))
 		unregister_netdev(card->dev);
 }
···
 	data->card = card;
 	memcpy(&data->qports, qports,
 			sizeof(struct qeth_sbp_state_change) + extrasize);
-	queue_work(qeth_wq, &data->worker);
+	queue_work(card->event_wq, &data->worker);
 }
 
 struct qeth_bridge_host_data {
···
 	data->card = card;
 	memcpy(&data->hostevs, hostevs,
 			sizeof(struct qeth_ipacmd_addr_change) + extrasize);
-	queue_work(qeth_wq, &data->worker);
+	queue_work(card->event_wq, &data->worker);
 }
 
 /* SETBRIDGEPORT support; sending commands */

drivers/s390/net/qeth_l3_main.c

···
 		qeth_clear_cmd_buffers(&card->read);
 		qeth_clear_cmd_buffers(&card->write);
 	}
+
+	flush_workqueue(card->event_wq);
 }
 
 /*
···
 	if (cgdev->state == CCWGROUP_ONLINE)
 		qeth_l3_set_offline(cgdev);
 
+	cancel_work_sync(&card->close_dev_work);
 	if (qeth_netdev_is_registered(card->dev))
 		unregister_netdev(card->dev);
 	qeth_l3_clear_ip_htable(card, 0);

drivers/s390/scsi/zfcp_aux.c

···
 		goto failed;
 
 	/* report size limit per scatter-gather segment */
-	adapter->dma_parms.max_segment_size = ZFCP_QDIO_SBALE_LEN;
 	adapter->ccw_device->dev.dma_parms = &adapter->dma_parms;
 
 	adapter->stat_read_buf_num = FSF_STATUS_READS_RECOM;

drivers/s390/scsi/zfcp_scsi.c

···
 	.max_sectors		 = (((QDIO_MAX_ELEMENTS_PER_BUFFER - 1)
 				     * ZFCP_QDIO_MAX_SBALS_PER_REQ) - 2) * 8,
 				   /* GCD, adjusted later */
+	/* report size limit per scatter-gather segment */
+	.max_segment_size	 = ZFCP_QDIO_SBALE_LEN,
 	.dma_boundary		 = ZFCP_QDIO_SBALE_LEN - 1,
 	.shost_attrs		 = zfcp_sysfs_shost_attrs,
 	.sdev_attrs		 = zfcp_sysfs_sdev_attrs,

drivers/scsi/53c700.c

···
 	if(tpnt->sdev_attrs == NULL)
 		tpnt->sdev_attrs = NCR_700_dev_attrs;
 
-	memory = dma_alloc_attrs(hostdata->dev, TOTAL_MEM_SIZE, &pScript,
+	memory = dma_alloc_attrs(dev, TOTAL_MEM_SIZE, &pScript,
 				 GFP_KERNEL, DMA_ATTR_NON_CONSISTENT);
 	if(memory == NULL) {
 		printk(KERN_ERR "53c700: Failed to allocate memory for driver, detaching\n");

drivers/scsi/aic94xx/aic94xx_init.c

···
 	return snprintf(buf, PAGE_SIZE, "%s\n",
 			asd_dev_rev[asd_ha->revision_id]);
 }
-static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
+static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL);
 
 static ssize_t asd_show_dev_bios_build(struct device *dev,
 				       struct device_attribute *attr,char *buf)
···
 {
 	int err;
 
-	err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
+	err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
 	if (err)
 		return err;
 
···
 err_biosb:
 	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 err_rev:
-	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
+	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
 	return err;
 }
 
 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 {
-	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
+	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
 	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);

drivers/scsi/bnx2fc/bnx2fc_io.c

···
 		return NULL;
 	}
 
+	cmgr->hba = hba;
 	cmgr->free_list = kcalloc(arr_sz, sizeof(*cmgr->free_list),
 				  GFP_KERNEL);
 	if (!cmgr->free_list) {
···
 		goto mem_err;
 	}
 
-	cmgr->hba = hba;
 	cmgr->cmds = (struct bnx2fc_cmd **)(cmgr + 1);
 
 	for (i = 0; i < arr_sz; i++)  {
···
 
 	/* Allocate pool of io_bdts - one for each bnx2fc_cmd */
 	mem_size = num_ios * sizeof(struct io_bdt *);
-	cmgr->io_bdt_pool = kmalloc(mem_size, GFP_KERNEL);
+	cmgr->io_bdt_pool = kzalloc(mem_size, GFP_KERNEL);
 	if (!cmgr->io_bdt_pool) {
 		printk(KERN_ERR PFX "failed to alloc io_bdt_pool\n");
 		goto mem_err;

drivers/scsi/cxlflash/main.c

···
 	host->max_cmd_len = CXLFLASH_MAX_CDB_LEN;
 
 	cfg = shost_priv(host);
+	cfg->state = STATE_PROBING;
 	cfg->host = host;
 	rc = alloc_mem(cfg);
 	if (rc) {
···
 	return rc;
 
 out_remove:
+	cfg->state = STATE_PROBED;
 	cxlflash_remove(pdev);
 	goto out;
 }

drivers/scsi/libfc/fc_lport.c

···
 	    fc_frame_payload_op(fp) != ELS_LS_ACC) {
 		FC_LPORT_DBG(lport, "FLOGI not accepted or bad response\n");
 		fc_lport_error(lport, fp);
-		goto err;
+		goto out;
 	}
 
 	flp = fc_frame_payload_get(fp, sizeof(*flp));
 	if (!flp) {
 		FC_LPORT_DBG(lport, "FLOGI bad response\n");
 		fc_lport_error(lport, fp);
-		goto err;
+		goto out;
 	}
 
 	mfs = ntohs(flp->fl_csp.sp_bb_data) &
···
 		FC_LPORT_DBG(lport, "FLOGI bad mfs:%hu response, "
 			     "lport->mfs:%hu\n", mfs, lport->mfs);
 		fc_lport_error(lport, fp);
-		goto err;
+		goto out;
 	}
 
 	if (mfs <= lport->mfs) {

drivers/scsi/libfc/fc_rport.c

···
 	struct fc_rport_priv *rdata;
 
 	rdata = container_of(kref, struct fc_rport_priv, kref);
-	WARN_ON(!list_empty(&rdata->peers));
 	kfree_rcu(rdata, rcu);
 }
 EXPORT_SYMBOL(fc_rport_destroy);

drivers/scsi/scsi_debug.c

···
 
 /* make sure inq_product_rev string corresponds to this version */
 #define SDEBUG_VERSION "0188"	/* format to fit INQUIRY revision field */
-static const char *sdebug_version_date = "20180128";
+static const char *sdebug_version_date = "20190125";
 
 #define MY_NAME "scsi_debug"
 
···
 		(sdebug_lbpu || sdebug_lbpws || sdebug_lbpws10);
 }
 
-static void *fake_store(unsigned long long lba)
+static void *lba2fake_store(unsigned long long lba)
 {
 	lba = do_div(lba, sdebug_store_sectors);
 
···
 	return ret;
 }
 
-/* If fake_store(lba,num) compares equal to arr(num), then copy top half of
- * arr into fake_store(lba,num) and return true. If comparison fails then
+/* If lba2fake_store(lba,num) compares equal to arr(num), then copy top half of
+ * arr into lba2fake_store(lba,num) and return true. If comparison fails then
  * return false. */
 static bool comp_write_worker(u64 lba, u32 num, const u8 *arr)
 {
···
 		if (sdt->app_tag == cpu_to_be16(0xffff))
 			continue;
 
-		ret = dif_verify(sdt, fake_store(sector), sector, ei_lba);
+		ret = dif_verify(sdt, lba2fake_store(sector), sector, ei_lba);
 		if (ret) {
 			dif_errors++;
 			return ret;
···
 static int resp_write_same(struct scsi_cmnd *scp, u64 lba, u32 num,
 			   u32 ei_lba, bool unmap, bool ndob)
 {
+	int ret;
 	unsigned long iflags;
 	unsigned long long i;
-	int ret;
-	u64 lba_off;
+	u32 lb_size = sdebug_sector_size;
+	u64 block, lbaa;
+	u8 *fs1p;
 
 	ret = check_device_access_params(scp, lba, num);
 	if (ret)
···
 		unmap_region(lba, num);
 		goto out;
 	}
-
-	lba_off = lba * sdebug_sector_size;
+	lbaa = lba;
+	block = do_div(lbaa, sdebug_store_sectors);
 	/* if ndob then zero 1 logical block, else fetch 1 logical block */
+	fs1p = fake_storep + (block * lb_size);
 	if (ndob) {
-		memset(fake_storep + lba_off, 0, sdebug_sector_size);
+		memset(fs1p, 0, lb_size);
 		ret = 0;
 	} else
-		ret = fetch_to_dev_buffer(scp, fake_storep + lba_off,
-					  sdebug_sector_size);
+		ret = fetch_to_dev_buffer(scp, fs1p, lb_size);
 
 	if (-1 == ret) {
 		write_unlock_irqrestore(&atomic_rw, iflags);
 		return DID_ERROR << 16;
-	} else if (sdebug_verbose && !ndob && (ret < sdebug_sector_size))
+	} else if (sdebug_verbose && !ndob && (ret < lb_size))
 		sdev_printk(KERN_INFO, scp->device,
 			    "%s: %s: lb size=%u, IO sent=%d bytes\n",
-			    my_name, "write same",
-			    sdebug_sector_size, ret);
+			    my_name, "write same", lb_size, ret);
 
 	/* Copy first sector to remaining blocks */
-	for (i = 1 ; i < num ; i++)
-		memcpy(fake_storep + ((lba + i) * sdebug_sector_size),
-		       fake_storep + lba_off,
-		       sdebug_sector_size);
-
+	for (i = 1 ; i < num ; i++) {
+		lbaa = lba + i;
+		block = do_div(lbaa, sdebug_store_sectors);
+		memmove(fake_storep + (block * lb_size), fs1p, lb_size);
+	}
 	if (scsi_debug_lbp())
 		map_region(lba, num);
 out:

drivers/scsi/sd_zbc.c

···
 	sdkp->device->use_10_for_rw = 0;
 
 	/*
-	 * If something changed, revalidate the disk zone bitmaps once we have
-	 * the capacity, that is on the second revalidate execution during disk
-	 * scan and always during normal revalidate.
+	 * Revalidate the disk zone bitmaps once the block device capacity is
+	 * set on the second revalidate execution during disk scan and if
+	 * something changed when executing a normal revalidate.
 	 */
-	if (sdkp->first_scan)
+	if (sdkp->first_scan) {
+		sdkp->zone_blocks = zone_blocks;
+		sdkp->nr_zones = nr_zones;
 		return 0;
+	}
+
 	if (sdkp->zone_blocks != zone_blocks ||
 	    sdkp->nr_zones != nr_zones ||
 	    disk->queue->nr_zones != nr_zones) {

drivers/soc/fsl/qbman/qman.c

···
 static irqreturn_t portal_isr(int irq, void *ptr)
 {
 	struct qman_portal *p = ptr;
-
-	u32 clear = QM_DQAVAIL_MASK | p->irq_sources;
 	u32 is = qm_in(&p->p, QM_REG_ISR) & p->irq_sources;
+	u32 clear = 0;
 
 	if (unlikely(!is))
 		return IRQ_NONE;
 
 	/* DQRR-handling if it's interrupt-driven */
-	if (is & QM_PIRQ_DQRI)
+	if (is & QM_PIRQ_DQRI) {
 		__poll_portal_fast(p, QMAN_POLL_LIMIT);
+		clear = QM_DQAVAIL_MASK | QM_PIRQ_DQRI;
+	}
 	/* Handling of anything else that's interrupt-driven */
-	clear |= __poll_portal_slow(p, is);
+	clear |= __poll_portal_slow(p, is) & QM_PIRQ_SLOW;
 	qm_out(&p->p, QM_REG_ISR, clear);
 	return IRQ_HANDLED;
 }

drivers/staging/octeon/ethernet-mdio.c

···
 		return -ENODEV;
 
 	priv->last_link = 0;
-	phy_start_aneg(phydev);
+	phy_start(phydev);
 
 	return 0;
 no_phy:

drivers/staging/speakup/spk_ttyio.c

···
 		return;
 	}
 
-	speakup_tty->ops->send_xchar(speakup_tty, ch);
+	if (speakup_tty->ops->send_xchar)
+		speakup_tty->ops->send_xchar(speakup_tty, ch);
 	mutex_unlock(&speakup_tty_mutex);
 }
 
···
 		return;
 	}
 
-	speakup_tty->ops->tiocmset(speakup_tty, set, clear);
+	if (speakup_tty->ops->tiocmset)
+		speakup_tty->ops->tiocmset(speakup_tty, set, clear);
 	mutex_unlock(&speakup_tty_mutex);
 }
 

drivers/target/target_core_configfs.c

···
 	return count;
 }
 
+/* always zero, but attr needs to remain RW to avoid userspace breakage */
+static ssize_t pi_prot_format_show(struct config_item *item, char *page)
+{
+	return snprintf(page, PAGE_SIZE, "0\n");
+}
+
 static ssize_t pi_prot_format_store(struct config_item *item,
 		const char *page, size_t count)
 {
···
 CONFIGFS_ATTR(, emulate_pr);
 CONFIGFS_ATTR(, pi_prot_type);
 CONFIGFS_ATTR_RO(, hw_pi_prot_type);
-CONFIGFS_ATTR_WO(, pi_prot_format);
+CONFIGFS_ATTR(, pi_prot_format);
 CONFIGFS_ATTR(, pi_prot_verify);
 CONFIGFS_ATTR(, enforce_pr_isids);
 CONFIGFS_ATTR(, is_nonrot);

drivers/tty/serial/8250/8250_mtk.c

···
 	if (dmacnt == 2) {
 		data->dma = devm_kzalloc(&pdev->dev, sizeof(*data->dma),
 					 GFP_KERNEL);
+		if (!data->dma)
+			return -ENOMEM;
+
 		data->dma->fn = mtk8250_dma_filter;
 		data->dma->rx_size = MTK_UART_RX_SIZE;
 		data->dma->rxconf.src_maxburst = MTK_UART_RX_TRIGGER;

drivers/tty/serial/8250/8250_pci.c

···
 serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
 {
 	int num_iomem, num_port, first_port = -1, i;
+	int rc;
+
+	rc = serial_pci_is_class_communication(dev);
+	if (rc)
+		return rc;
 
 	/*
 	 * Should we try to make guesses for multiport serial devices later?
···
 	}
 
 	board = &pci_boards[ent->driver_data];
-
-	rc = serial_pci_is_class_communication(dev);
-	if (rc)
-		return rc;
 
 	rc = serial_pci_is_blacklisted(dev);
 	if (rc)

drivers/tty/serial/earlycon-riscv-sbi.c

···
 #include <linux/serial_core.h>
 #include <asm/sbi.h>
 
-static void sbi_console_write(struct console *con,
-			      const char *s, unsigned int n)
+static void sbi_putc(struct uart_port *port, int c)
 {
-	int i;
+	sbi_console_putchar(c);
+}
 
-	for (i = 0; i < n; ++i)
-		sbi_console_putchar(s[i]);
+static void sbi_console_write(struct console *con,
+			      const char *s, unsigned n)
+{
+	struct earlycon_device *dev = con->data;
+	uart_console_write(&dev->port, s, n, sbi_putc);
 }
 
 static int __init early_sbi_setup(struct earlycon_device *device,

drivers/tty/serial/serial_core.c

···
 	struct uart_port *port;
 	unsigned long flags;
 
+	if (!state)
+		return;
+
 	port = uart_port_lock(state, flags);
 	__uart_start(tty);
 	uart_port_unlock(port, flags);
···
 	struct uart_state *state = tty->driver_data;
 	upstat_t mask = UPSTAT_SYNC_FIFO;
 	struct uart_port *port;
+
+	if (!state)
+		return;
 
 	port = uart_port_ref(state);
 	if (!port)

drivers/tty/serial/sh-sci.c

···
 
 static void sci_free_irq(struct sci_port *port)
 {
-	int i;
+	int i, j;
 
 	/*
 	 * Intentionally in reverse order so we iterate over the muxed
···
 		 * interrupt sources.
 		 */
 		if (unlikely(irq < 0))
+			continue;
+
+		/* Check if already freed (irq was muxed) */
+		for (j = 0; j < i; j++)
+			if (port->irqs[j] == irq)
+				j = i + 1;
+		if (j > i)
 			continue;
 
 		free_irq(port->irqs[i], port);

drivers/usb/dwc3/dwc3-exynos.c

···
 	for (i = 0; i < exynos->num_clks; i++) {
 		ret = clk_prepare_enable(exynos->clks[i]);
 		if (ret) {
-			while (--i > 0)
+			while (i-- > 0)
 				clk_disable_unprepare(exynos->clks[i]);
 			return ret;
 		}
···
 	for (i = 0; i < exynos->num_clks; i++) {
 		ret = clk_prepare_enable(exynos->clks[i]);
 		if (ret) {
-			while (--i > 0)
+			while (i-- > 0)
 				clk_disable_unprepare(exynos->clks[i]);
 			return ret;
 		}

drivers/usb/dwc3/gadget.c

···
 	unsigned int maxp = usb_endpoint_maxp(dep->endpoint.desc);
 	unsigned int rem = length % maxp;
 
-	if (rem && usb_endpoint_dir_out(dep->endpoint.desc)) {
+	if ((!length || rem) && usb_endpoint_dir_out(dep->endpoint.desc)) {
 		struct dwc3	*dwc = dep->dwc;
 		struct dwc3_trb	*trb;
 

drivers/usb/gadget/udc/net2272.c

···
 #if defined(PLX_PCI_RDK2)
 	/* see if PCI int for us by checking irqstat */
 	intcsr = readl(dev->rdk2.fpga_base_addr + RDK2_IRQSTAT);
-	if (!intcsr & (1 << NET2272_PCI_IRQ)) {
+	if (!(intcsr & (1 << NET2272_PCI_IRQ))) {
 		spin_unlock(&dev->lock);
 		return IRQ_NONE;
 	}

drivers/usb/musb/musb_gadget.c

···
 	}
 
 	if (request) {
-		u8	is_dma = 0;
-		bool	short_packet = false;
 
 		trace_musb_req_tx(req);
 
 		if (dma && (csr & MUSB_TXCSR_DMAENAB)) {
-			is_dma = 1;
 			csr |= MUSB_TXCSR_P_WZC_BITS;
 			csr &= ~(MUSB_TXCSR_DMAENAB | MUSB_TXCSR_P_UNDERRUN |
 				 MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_AUTOSET);
···
 		 */
 		if ((request->zero && request->length)
 			&& (request->length % musb_ep->packet_sz == 0)
-			&& (request->actual == request->length))
-				short_packet = true;
+			&& (request->actual == request->length)) {
 
-		if ((musb_dma_inventra(musb) || musb_dma_ux500(musb)) &&
-			(is_dma && (!dma->desired_mode ||
-				(request->actual &
-					(musb_ep->packet_sz - 1)))))
-				short_packet = true;
-
-		if (short_packet) {
 			/*
 			 * On DMA completion, FIFO may not be
 			 * available yet...

drivers/usb/musb/musbhsdma.c

···
 				channel->status = MUSB_DMA_STATUS_FREE;
 
 				/* completed */
-				if ((devctl & MUSB_DEVCTL_HM)
-					&& (musb_channel->transmit)
-					&& ((channel->desired_mode == 0)
-					    || (channel->actual_len &
-					    (musb_channel->max_packet_sz - 1)))
-				    ) {
+				if (musb_channel->transmit &&
+					(!channel->desired_mode ||
+					(channel->actual_len %
+					    musb_channel->max_packet_sz))) {
 					u8  epnum  = musb_channel->epnum;
 					int offset = musb->io.ep_offset(epnum,
 								    MUSB_TXCSR);
···
 					 */
 					musb_ep_select(mbase, epnum);
 					txcsr = musb_readw(mbase, offset);
-					txcsr &= ~(MUSB_TXCSR_DMAENAB
+					if (channel->desired_mode == 1) {
+						txcsr &= ~(MUSB_TXCSR_DMAENAB
 							| MUSB_TXCSR_AUTOSET);
-					musb_writew(mbase, offset, txcsr);
-					/* Send out the packet */
-					txcsr &= ~MUSB_TXCSR_DMAMODE;
+						musb_writew(mbase, offset, txcsr);
+						/* Send out the packet */
+						txcsr &= ~MUSB_TXCSR_DMAMODE;
+						txcsr |= MUSB_TXCSR_DMAENAB;
+					}
 					txcsr |=  MUSB_TXCSR_TXPKTRDY;
 					musb_writew(mbase, offset, txcsr);
 				}

drivers/usb/phy/Kconfig

···
 
 config FSL_USB2_OTG
 	bool "Freescale USB OTG Transceiver Driver"
-	depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_OTG_FSM && PM
+	depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_OTG_FSM=y && PM
 	depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
 	select USB_PHY
 	help

drivers/usb/phy/phy-am335x.c

···
 	if (ret)
 		return ret;
 
-	ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
-	if (ret)
-		return ret;
 	am_phy->usb_phy_gen.phy.init = am335x_init;
 	am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown;
 
···
 	device_set_wakeup_enable(dev, false);
 	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
 
-	return 0;
+	return usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
 }
 
 static int am335x_phy_remove(struct platform_device *pdev)

drivers/usb/typec/tcpm/tcpm.c

···
 					      pdo_pps_apdo_max_voltage(snk));
 		port->pps_data.max_curr = min_pps_apdo_current(src, snk);
 		port->pps_data.out_volt = min(port->pps_data.max_volt,
-					      port->pps_data.out_volt);
+					      max(port->pps_data.min_volt,
+						  port->pps_data.out_volt));
 		port->pps_data.op_curr = min(port->pps_data.max_curr,
 					     port->pps_data.op_curr);
 	}

drivers/vhost/net.c

···
 		n->vqs[i].rx_ring = NULL;
 		vhost_net_buf_init(&n->vqs[i].rxq);
 	}
-	vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX);
+	vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX,
+		       UIO_MAXIOV + VHOST_NET_BATCH);
 
 	vhost_poll_init(n->poll + VHOST_NET_VQ_TX, handle_tx_net, EPOLLOUT, dev);
 	vhost_poll_init(n->poll + VHOST_NET_VQ_RX, handle_rx_net, EPOLLIN, dev);

drivers/vhost/scsi.c

···
 		vqs[i] = &vs->vqs[i].vq;
 		vs->vqs[i].vq.handle_kick = vhost_scsi_handle_kick;
 	}
-	vhost_dev_init(&vs->dev, vqs, VHOST_SCSI_MAX_VQ);
+	vhost_dev_init(&vs->dev, vqs, VHOST_SCSI_MAX_VQ, UIO_MAXIOV);
 
 	vhost_scsi_init_inflight(vs, NULL);
 

drivers/vhost/vhost.c

···
 		vq->indirect = kmalloc_array(UIO_MAXIOV,
 					     sizeof(*vq->indirect),
 					     GFP_KERNEL);
-		vq->log = kmalloc_array(UIO_MAXIOV, sizeof(*vq->log),
+		vq->log = kmalloc_array(dev->iov_limit, sizeof(*vq->log),
 					GFP_KERNEL);
-		vq->heads = kmalloc_array(UIO_MAXIOV, sizeof(*vq->heads),
+		vq->heads = kmalloc_array(dev->iov_limit, sizeof(*vq->heads),
 					  GFP_KERNEL);
 		if (!vq->indirect || !vq->log || !vq->heads)
 			goto err_nomem;
···
 }
 
 void vhost_dev_init(struct vhost_dev *dev,
-		    struct vhost_virtqueue **vqs, int nvqs)
+		    struct vhost_virtqueue **vqs, int nvqs, int iov_limit)
 {
 	struct vhost_virtqueue *vq;
 	int i;
···
 	dev->iotlb = NULL;
 	dev->mm = NULL;
 	dev->worker = NULL;
+	dev->iov_limit = iov_limit;
 	init_llist_head(&dev->work_list);
 	init_waitqueue_head(&dev->wait);
 	INIT_LIST_HEAD(&dev->read_list);

drivers/vhost/vhost.h

···
 	struct list_head read_list;
 	struct list_head pending_list;
 	wait_queue_head_t wait;
+	int iov_limit;
 };
 
-void vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs, int nvqs);
+void vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs,
+		    int nvqs, int iov_limit);
 long vhost_dev_set_owner(struct vhost_dev *dev);
 bool vhost_dev_has_owner(struct vhost_dev *dev);
 long vhost_dev_check_owner(struct vhost_dev *);

drivers/vhost/vsock.c

···
 	vsock->vqs[VSOCK_VQ_TX].handle_kick = vhost_vsock_handle_tx_kick;
 	vsock->vqs[VSOCK_VQ_RX].handle_kick = vhost_vsock_handle_rx_kick;
 
-	vhost_dev_init(&vsock->dev, vqs, ARRAY_SIZE(vsock->vqs));
+	vhost_dev_init(&vsock->dev, vqs, ARRAY_SIZE(vsock->vqs), UIO_MAXIOV);
 
 	file->private_data = vsock;
 	spin_lock_init(&vsock->send_pkt_list_lock);

drivers/virtio/virtio_ring.c

···
 		/* Available for packed ring */
 		struct {
 			/* Actual memory layout for this queue. */
-			struct vring_packed vring;
+			struct {
+				unsigned int num;
+				struct vring_packed_desc *desc;
+				struct vring_packed_desc_event *driver;
+				struct vring_packed_desc_event *device;
+			} vring;
 
 			/* Driver ring wrap counter. */
 			bool avail_wrap_counter;
···
 		!context;
 	vq->event = virtio_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX);
 
+	if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
+		vq->weak_barriers = false;
+
 	vq->packed.ring_dma_addr = ring_dma_addr;
 	vq->packed.driver_event_dma_addr = driver_event_dma_addr;
 	vq->packed.device_event_dma_addr = device_event_dma_addr;
···
 		!context;
 	vq->event = virtio_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX);
 
+	if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
+		vq->weak_barriers = false;
+
 	vq->split.queue_dma_addr = 0;
 	vq->split.queue_size_in_bytes = 0;
 
···
 		case VIRTIO_F_IOMMU_PLATFORM:
 			break;
 		case VIRTIO_F_RING_PACKED:
+			break;
+		case VIRTIO_F_ORDER_PLATFORM:
 			break;
 		default:
 			/* We don't understand this bit. */

fs/aio.c

···
 	if (unlikely(!req->ki_filp))
 		return -EBADF;
 	req->ki_complete = aio_complete_rw;
+	req->private = NULL;
 	req->ki_pos = iocb->aio_offset;
 	req->ki_flags = iocb_flags(req->ki_filp);
 	if (iocb->aio_flags & IOCB_FLAG_RESFD)

fs/autofs/expire.c

···
 	pkt.len = dentry->d_name.len;
 	memcpy(pkt.name, dentry->d_name.name, pkt.len);
 	pkt.name[pkt.len] = '\0';
-	dput(dentry);
 
 	if (copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)))
 		ret = -EFAULT;
···
 	ino->flags &= ~(AUTOFS_INF_EXPIRING|AUTOFS_INF_WANT_EXPIRE);
 	complete_all(&ino->expire_complete);
 	spin_unlock(&sbi->fs_lock);
+
+	dput(dentry);
 
 	return ret;
 }

fs/autofs/inode.c

···
 	}
 	root_inode = autofs_get_inode(s, S_IFDIR | 0755);
 	root = d_make_root(root_inode);
-	if (!root)
+	if (!root) {
+		ret = -ENOMEM;
 		goto fail_ino;
+	}
 	pipe = NULL;
 
 	root->d_fsdata = ino;

fs/btrfs/ctree.c

···
 	return 0;
 }
 
+static struct extent_buffer *alloc_tree_block_no_bg_flush(
+					  struct btrfs_trans_handle *trans,
+					  struct btrfs_root *root,
+					  u64 parent_start,
+					  const struct btrfs_disk_key *disk_key,
+					  int level,
+					  u64 hint,
+					  u64 empty_size)
+{
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	struct extent_buffer *ret;
+
+	/*
+	 * If we are COWing a node/leaf from the extent, chunk, device or free
+	 * space trees, make sure that we do not finish block group creation of
+	 * pending block groups. We do this to avoid a deadlock.
+	 * COWing can result in allocation of a new chunk, and flushing pending
+	 * block groups (btrfs_create_pending_block_groups()) can be triggered
+	 * when finishing allocation of a new chunk. Creation of a pending block
+	 * group modifies the extent, chunk, device and free space trees,
+	 * therefore we could deadlock with ourselves since we are holding a
+	 * lock on an extent buffer that btrfs_create_pending_block_groups() may
+	 * try to COW later.
+	 * For similar reasons, we also need to delay flushing pending block
+	 * groups when splitting a leaf or node, from one of those trees, since
+	 * we are holding a write lock on it and its parent or when inserting a
+	 * new root node for one of those trees.
+	 */
+	if (root == fs_info->extent_root ||
+	    root == fs_info->chunk_root ||
+	    root == fs_info->dev_root ||
+	    root == fs_info->free_space_root)
+		trans->can_flush_pending_bgs = false;
+
+	ret = btrfs_alloc_tree_block(trans, root, parent_start,
+				     root->root_key.objectid, disk_key, level,
+				     hint, empty_size);
+	trans->can_flush_pending_bgs = true;
+
+	return ret;
+}
+
 /*
  * does the dirty work in cow of a single block.  The parent block (if
  * supplied) is updated to point to the new cow copy.  The new buffer is marked
···
 	if ((root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) && parent)
 		parent_start = parent->start;
 
-	/*
-	 * If we are COWing a node/leaf from the extent, chunk, device or free
-	 * space trees, make sure that we do not finish block group creation of
-	 * pending block groups. We do this to avoid a deadlock.
-	 * COWing can result in allocation of a new chunk, and flushing pending
-	 * block groups (btrfs_create_pending_block_groups()) can be triggered
-	 * when finishing allocation of a new chunk. Creation of a pending block
-	 * group modifies the extent, chunk, device and free space trees,
-	 * therefore we could deadlock with ourselves since we are holding a
-	 * lock on an extent buffer that btrfs_create_pending_block_groups() may
-	 * try to COW later.
-	 */
-	if (root == fs_info->extent_root ||
-	    root == fs_info->chunk_root ||
-	    root == fs_info->dev_root ||
-	    root == fs_info->free_space_root)
-		trans->can_flush_pending_bgs = false;
-
-	cow = btrfs_alloc_tree_block(trans, root, parent_start,
-			root->root_key.objectid, &disk_key, level,
-			search_start, empty_size);
-	trans->can_flush_pending_bgs = true;
+	cow = alloc_tree_block_no_bg_flush(trans, root, parent_start, &disk_key,
+					   level, search_start, empty_size);
 	if (IS_ERR(cow))
 		return PTR_ERR(cow);
 
···
 	else
 		btrfs_node_key(lower, &lower_key, 0);
 
-	c = btrfs_alloc_tree_block(trans, root, 0, root->root_key.objectid,
-				   &lower_key, level, root->node->start, 0);
+	c = alloc_tree_block_no_bg_flush(trans, root, 0, &lower_key, level,
+					 root->node->start, 0);
 	if (IS_ERR(c))
 		return PTR_ERR(c);
 
···
 	mid = (c_nritems + 1) / 2;
 	btrfs_node_key(c, &disk_key, mid);
 
-	split = btrfs_alloc_tree_block(trans, root, 0, root->root_key.objectid,
-			&disk_key, level, c->start, 0);
+	split = alloc_tree_block_no_bg_flush(trans, root, 0, &disk_key, level,
+					     c->start, 0);
 	if (IS_ERR(split))
 		return PTR_ERR(split);
 
···
 	else
 		btrfs_item_key(l, &disk_key, mid);
 
-	right = btrfs_alloc_tree_block(trans, root, 0, root->root_key.objectid,
-			&disk_key, 0, l->start, 0);
+	right = alloc_tree_block_no_bg_flush(trans, root, 0, &disk_key, 0,
+					     l->start, 0);
 	if (IS_ERR(right))
 		return PTR_ERR(right);
 

fs/btrfs/super.c

···
 				flags | SB_RDONLY, device_name, data);
 			if (IS_ERR(mnt_root)) {
 				root = ERR_CAST(mnt_root);
+				kfree(subvol_name);
 				goto out;
 			}
 
···
 			if (error < 0) {
 				root = ERR_PTR(error);
 				mntput(mnt_root);
+				kfree(subvol_name);
 				goto out;
 			}
 		}
 	}
 	if (IS_ERR(mnt_root)) {
 		root = ERR_CAST(mnt_root);
+		kfree(subvol_name);
 		goto out;
 	}
 

fs/btrfs/transaction.c

···
 
 	btrfs_trans_release_chunk_metadata(trans);
 
-	if (lock && should_end_transaction(trans) &&
-	    READ_ONCE(cur_trans->state) == TRANS_STATE_RUNNING) {
-		spin_lock(&info->trans_lock);
-		if (cur_trans->state == TRANS_STATE_RUNNING)
-			cur_trans->state = TRANS_STATE_BLOCKED;
-		spin_unlock(&info->trans_lock);
-	}
-
 	if (lock && READ_ONCE(cur_trans->state) == TRANS_STATE_BLOCKED) {
 		if (throttle)
 			return btrfs_commit_transaction(trans);
···
 	kmem_cache_free(btrfs_trans_handle_cachep, trans);
 }
 
+/*
+ * Release reserved delayed ref space of all pending block groups of the
+ * transaction and remove them from the list
+ */
+static void btrfs_cleanup_pending_block_groups(struct btrfs_trans_handle *trans)
+{
+       struct btrfs_fs_info *fs_info = trans->fs_info;
+       struct btrfs_block_group_cache *block_group, *tmp;
+
+       list_for_each_entry_safe(block_group, tmp, &trans->new_bgs, bg_list) {
+               btrfs_delayed_refs_rsv_release(fs_info, 1);
+               list_del_init(&block_group->bg_list);
+       }
+}
+
 static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info)
 {
 	/*
···
 	btrfs_scrub_continue(fs_info);
 cleanup_transaction:
 	btrfs_trans_release_metadata(trans);
+	btrfs_cleanup_pending_block_groups(trans);
 	btrfs_trans_release_chunk_metadata(trans);
 	trans->block_rsv = NULL;
 	btrfs_warn(fs_info, "Skipping commit of aborted transaction.");

fs/btrfs/volumes.c

···
 		else
 			fs_devices = alloc_fs_devices(disk_super->fsid, NULL);
 
-		fs_devices->fsid_change = fsid_change_in_progress;
-
 		if (IS_ERR(fs_devices))
 			return ERR_CAST(fs_devices);
+
+		fs_devices->fsid_change = fsid_change_in_progress;
 
 		mutex_lock(&fs_devices->device_list_mutex);
 		list_add(&fs_devices->fs_list, &fs_uuids);

fs/buffer.c

···
 	struct buffer_head *head;
 	struct page *page;
 	int all_mapped = 1;
+	static DEFINE_RATELIMIT_STATE(last_warned, HZ, 1);
 
 	index = block >> (PAGE_SHIFT - bd_inode->i_blkbits);
 	page = find_get_page_flags(bd_mapping, index, FGP_ACCESSED);
···
 	 * file io on the block device and getblk.  It gets dealt with
 	 * elsewhere, don't buffer_error if we had some unmapped buffers
 	 */
-	if (all_mapped) {
-		printk("__find_get_block_slow() failed. "
-			"block=%llu, b_blocknr=%llu\n",
-			(unsigned long long)block,
-			(unsigned long long)bh->b_blocknr);
-		printk("b_state=0x%08lx, b_size=%zu\n",
-			bh->b_state, bh->b_size);
-		printk("device %pg blocksize: %d\n", bdev,
-			1 << bd_inode->i_blkbits);
+	ratelimit_set_flags(&last_warned, RATELIMIT_MSG_ON_RELEASE);
+	if (all_mapped && __ratelimit(&last_warned)) {
+		printk("__find_get_block_slow() failed. block=%llu, "
+		       "b_blocknr=%llu, b_state=0x%08lx, b_size=%zu, "
+		       "device %pg blocksize: %d\n",
+		       (unsigned long long)block,
+		       (unsigned long long)bh->b_blocknr,
+		       bh->b_state, bh->b_size, bdev,
+		       1 << bd_inode->i_blkbits);
 	}
 out_unlock:
 	spin_unlock(&bd_mapping->private_lock);

fs/cifs/cifsfs.h

···
 extern const struct export_operations cifs_export_ops;
 #endif /* CONFIG_CIFS_NFSD_EXPORT */
 
-#define CIFS_VERSION   "2.16"
+#define CIFS_VERSION   "2.17"
 #endif				/* _CIFSFS_H */

fs/cifs/file.c

···
 
 			rc = cifs_write_allocate_pages(wdata->pages, nr_pages);
 			if (rc) {
+				kvfree(wdata->pages);
 				kfree(wdata);
 				add_credits_and_wake_if(server, credits, 0);
 				break;
···
 			if (rc) {
 				for (i = 0; i < nr_pages; i++)
 					put_page(wdata->pages[i]);
+				kvfree(wdata->pages);
 				kfree(wdata);
 				add_credits_and_wake_if(server, credits, 0);
 				break;
···
 			}
 
 			rc = cifs_read_allocate_pages(rdata, npages);
-			if (rc)
-				goto error;
+			if (rc) {
+				kvfree(rdata->pages);
+				kfree(rdata);
+				add_credits_and_wake_if(server, credits, 0);
+				break;
+			}
 
 			rdata->tailsz = PAGE_SIZE;
 		}
···
 		if (!rdata->cfile->invalidHandle ||
 		    !(rc = cifs_reopen_file(rdata->cfile, true)))
 			rc = server->ops->async_readv(rdata);
-error:
 		if (rc) {
 			add_credits_and_wake_if(server, rdata->credits, 0);
 			kref_put(&rdata->refcount,

fs/cifs/smb2ops.c

···
 				      FILE_READ_EA,
 				      FILE_FULL_EA_INFORMATION,
 				      SMB2_O_INFO_FILE,
-				      SMB2_MAX_EA_BUF,
+				      CIFSMaxBufSize -
+				      MAX_SMB2_CREATE_RESPONSE_SIZE -
+				      MAX_SMB2_CLOSE_RESPONSE_SIZE,
 				      &rsp_iov, &buftype, cifs_sb);
 	if (rc) {
 		/*

fs/cifs/smb2pdu.c

···
 		rdata->mr = NULL;
 	}
 #endif
-	if (rdata->result)
+	if (rdata->result && rdata->result != -ENODATA) {
 		cifs_stats_fail_inc(tcon, SMB2_READ_HE);
+		trace_smb3_read_err(0 /* xid */,
+				    rdata->cfile->fid.persistent_fid,
+				    tcon->tid, tcon->ses->Suid, rdata->offset,
+				    rdata->bytes, rdata->result);
+	} else
+		trace_smb3_read_done(0 /* xid */,
+				     rdata->cfile->fid.persistent_fid,
+				     tcon->tid, tcon->ses->Suid,
+				     rdata->offset, rdata->got_bytes);
 
 	queue_work(cifsiod_wq, &rdata->work);
 	DeleteMidQEntry(mid);
···
 	if (rc) {
 		kref_put(&rdata->refcount, cifs_readdata_release);
 		cifs_stats_fail_inc(io_parms.tcon, SMB2_READ_HE);
-		trace_smb3_read_err(rc, 0 /* xid */, io_parms.persistent_fid,
-				   io_parms.tcon->tid, io_parms.tcon->ses->Suid,
-				   io_parms.offset, io_parms.length);
-	} else
-		trace_smb3_read_done(0 /* xid */, io_parms.persistent_fid,
-				   io_parms.tcon->tid, io_parms.tcon->ses->Suid,
-				   io_parms.offset, io_parms.length);
+		trace_smb3_read_err(0 /* xid */, io_parms.persistent_fid,
+				    io_parms.tcon->tid,
+				    io_parms.tcon->ses->Suid,
+				    io_parms.offset, io_parms.length, rc);
+	}
 
 	cifs_small_buf_release(buf);
 	return rc;
···
 		if (rc != -ENODATA) {
 			cifs_stats_fail_inc(io_parms->tcon, SMB2_READ_HE);
 			cifs_dbg(VFS, "Send error in read = %d\n", rc);
+			trace_smb3_read_err(xid, req->PersistentFileId,
+					    io_parms->tcon->tid, ses->Suid,
+					    io_parms->offset, io_parms->length,
+					    rc);
 		}
-		trace_smb3_read_err(rc, xid, req->PersistentFileId,
-				    io_parms->tcon->tid, ses->Suid,
-				    io_parms->offset, io_parms->length);
 		free_rsp_buf(resp_buftype, rsp_iov.iov_base);
 		return rc == -ENODATA ? 0 : rc;
 	} else
···
 		wdata->mr = NULL;
 	}
 #endif
-	if (wdata->result)
+	if (wdata->result) {
 		cifs_stats_fail_inc(tcon, SMB2_WRITE_HE);
+		trace_smb3_write_err(0 /* no xid */,
+				     wdata->cfile->fid.persistent_fid,
+				     tcon->tid, tcon->ses->Suid, wdata->offset,
+				     wdata->bytes, wdata->result);
+	} else
+		trace_smb3_write_done(0 /* no xid */,
+				      wdata->cfile->fid.persistent_fid,
+				      tcon->tid, tcon->ses->Suid,
+				      wdata->offset, wdata->bytes);
 
 	queue_work(cifsiod_wq, &wdata->work);
 	DeleteMidQEntry(mid);
···
 				     wdata->bytes, rc);
 		kref_put(&wdata->refcount, release);
 		cifs_stats_fail_inc(tcon, SMB2_WRITE_HE);
-	} else
-		trace_smb3_write_done(0 /* no xid */, req->PersistentFileId,
-				     tcon->tid, tcon->ses->Suid, wdata->offset,
-				     wdata->bytes);
+	}
 
 async_writev_out:
 	cifs_small_buf_release(req);
···
 		    rsp->sync_hdr.Status == STATUS_NO_MORE_FILES) {
 			srch_inf->endOfSearch = true;
 			rc = 0;
-		}
-		cifs_stats_fail_inc(tcon, SMB2_QUERY_DIRECTORY_HE);
+		} else
+			cifs_stats_fail_inc(tcon, SMB2_QUERY_DIRECTORY_HE);
 		goto qdir_exit;
 	}
 
···
 	rc = cifs_send_recv(xid, ses, &rqst, &resp_buf_type, flags, &rsp_iov);
 	cifs_small_buf_release(req);
 
-	please_key_low = (__u64 *)req->LeaseKey;
-	please_key_high = (__u64 *)(req->LeaseKey+8);
+	please_key_low = (__u64 *)lease_key;
+	please_key_high = (__u64 *)(lease_key+8);
 	if (rc) {
 		cifs_stats_fail_inc(tcon, SMB2_OPLOCK_BREAK_HE);
 		trace_smb3_lease_err(le32_to_cpu(lease_state), tcon->tid,

fs/cifs/smb2pdu.h

···
 
 #define NUMBER_OF_SMB2_COMMANDS	0x0013
 
-/* 4 len + 52 transform hdr + 64 hdr + 56 create rsp */
-#define MAX_SMB2_HDR_SIZE 0x00b0
+/* 52 transform hdr + 64 hdr + 88 create rsp */
+#define SMB2_TRANSFORM_HEADER_SIZE 52
+#define MAX_SMB2_HDR_SIZE 204
 
 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
···
 	__u8   Buffer[0];
 } __packed;
 
+/*
+ * Maximum size of a SMB2_CREATE response is 64 (smb2 header) +
+ * 88 (fixed part of create response) + 520 (path) + 150 (contexts) +
+ * 2 bytes of padding.
+ */
+#define MAX_SMB2_CREATE_RESPONSE_SIZE 824
+
 struct smb2_create_rsp {
 	struct smb2_sync_hdr sync_hdr;
 	__le16 StructureSize;	/* Must be 89 */
···
 	__u64  PersistentFileId; /* opaque endianness */
 	__u64  VolatileFileId; /* opaque endianness */
 } __packed;
+
+/*
+ * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
+ */
+#define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
 
 struct smb2_close_rsp {
 	struct smb2_sync_hdr sync_hdr;
···
 	__le32 FileNameLength;
 	char   FileName[0];     /* Name to be assigned to new link */
 } __packed; /* level 11 Set */
-
-#define SMB2_MAX_EA_BUF 65536
 
 struct smb2_file_full_ea_info { /* encoding of response for level 15 */
 	__le32 next_entry_offset;

fs/dcache.c

···
 
 static DEFINE_PER_CPU(long, nr_dentry);
 static DEFINE_PER_CPU(long, nr_dentry_unused);
+static DEFINE_PER_CPU(long, nr_dentry_negative);
 
 #if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
 
···
 	return sum < 0 ? 0 : sum;
 }
 
+static long get_nr_dentry_negative(void)
+{
+	int i;
+	long sum = 0;
+
+	for_each_possible_cpu(i)
+		sum += per_cpu(nr_dentry_negative, i);
+	return sum < 0 ? 0 : sum;
+}
+
 int proc_nr_dentry(struct ctl_table *table, int write, void __user *buffer,
 		   size_t *lenp, loff_t *ppos)
 {
 	dentry_stat.nr_dentry = get_nr_dentry();
 	dentry_stat.nr_unused = get_nr_dentry_unused();
+	dentry_stat.nr_negative = get_nr_dentry_negative();
 	return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
 }
 #endif
···
 	flags &= ~(DCACHE_ENTRY_TYPE | DCACHE_FALLTHRU);
 	WRITE_ONCE(dentry->d_flags, flags);
 	dentry->d_inode = NULL;
+	if (dentry->d_flags & DCACHE_LRU_LIST)
+		this_cpu_inc(nr_dentry_negative);
 }
 
 static void dentry_free(struct dentry *dentry)
···
  * The per-cpu "nr_dentry_unused" counters are updated with
  * the DCACHE_LRU_LIST bit.
  *
+ * The per-cpu "nr_dentry_negative" counters are only updated
+ * when deleted from or added to the per-superblock LRU list, not
+ * from/to the shrink list. That is to avoid an unneeded dec/inc
+ * pair when moving from LRU to shrink list in select_collect().
+ *
  * These helper functions make sure we always follow the
  * rules. d_lock must be held by the caller.
  */
···
 	D_FLAG_VERIFY(dentry, 0);
 	dentry->d_flags |= DCACHE_LRU_LIST;
 	this_cpu_inc(nr_dentry_unused);
+	if (d_is_negative(dentry))
+		this_cpu_inc(nr_dentry_negative);
 	WARN_ON_ONCE(!list_lru_add(&dentry->d_sb->s_dentry_lru, &dentry->d_lru));
 }
 
···
 	D_FLAG_VERIFY(dentry, DCACHE_LRU_LIST);
 	dentry->d_flags &= ~DCACHE_LRU_LIST;
 	this_cpu_dec(nr_dentry_unused);
+	if (d_is_negative(dentry))
+		this_cpu_dec(nr_dentry_negative);
 	WARN_ON_ONCE(!list_lru_del(&dentry->d_sb->s_dentry_lru, &dentry->d_lru));
 }
 
···
 	D_FLAG_VERIFY(dentry, DCACHE_LRU_LIST);
 	dentry->d_flags &= ~DCACHE_LRU_LIST;
 	this_cpu_dec(nr_dentry_unused);
+	if (d_is_negative(dentry))
+		this_cpu_dec(nr_dentry_negative);
 	list_lru_isolate(lru, &dentry->d_lru);
 }
 
···
 {
 	D_FLAG_VERIFY(dentry, DCACHE_LRU_LIST);
 	dentry->d_flags |= DCACHE_SHRINK_LIST;
+	if (d_is_negative(dentry))
+		this_cpu_dec(nr_dentry_negative);
 	list_lru_isolate_move(lru, &dentry->d_lru, list);
 }
 
···
  */
 void shrink_dcache_sb(struct super_block *sb)
 {
-	long freed;
-
 	do {
 		LIST_HEAD(dispose);
 
-		freed = list_lru_walk(&sb->s_dentry_lru,
+		list_lru_walk(&sb->s_dentry_lru,
 			dentry_lru_isolate_shrink, &dispose, 1024);
-
-		this_cpu_sub(nr_dentry_unused, freed);
 		shrink_dentry_list(&dispose);
 	} while (list_lru_count(&sb->s_dentry_lru) > 0);
 }
···
 	WARN_ON(d_in_lookup(dentry));
 
 	spin_lock(&dentry->d_lock);
+	/*
+	 * Decrement negative dentry count if it was in the LRU list.
+	 */
+	if (dentry->d_flags & DCACHE_LRU_LIST)
+		this_cpu_dec(nr_dentry_negative);
 	hlist_add_head(&dentry->d_u.d_alias, &inode->i_dentry);
 	raw_write_seqcount_begin(&dentry->d_seq);
 	__d_set_inode_and_type(dentry, inode, add_flags);

fs/debugfs/inode.c

···
 	inode_unlock(d_inode(dentry->d_parent));
 	dput(dentry);
 	simple_release_fs(&debugfs_mount, &debugfs_mount_count);
-	return NULL;
+	return ERR_PTR(-ENOMEM);
 }
 
 static struct dentry *end_creating(struct dentry *dentry)
···
 	dentry = start_creating(name, parent);
 
 	if (IS_ERR(dentry))
-		return NULL;
+		return dentry;
 
 	inode = debugfs_get_inode(dentry->d_sb);
 	if (unlikely(!inode))
···
  * This function will return a pointer to a dentry if it succeeds.  This
  * pointer must be passed to the debugfs_remove() function when the file is
  * to be removed (no automatic cleanup happens if your module is unloaded,
- * you are responsible here.)  If an error occurs, %NULL will be returned.
+ * you are responsible here.)  If an error occurs, %ERR_PTR(-ERROR) will be
+ * returned.
  *
  * If debugfs is not enabled in the kernel, the value -%ENODEV will be
  * returned.
···
  * This function will return a pointer to a dentry if it succeeds.  This
  * pointer must be passed to the debugfs_remove() function when the file is
  * to be removed (no automatic cleanup happens if your module is unloaded,
- * you are responsible here.)  If an error occurs, %NULL will be returned.
+ * you are responsible here.)  If an error occurs, %ERR_PTR(-ERROR) will be
+ * returned.
  *
  * If debugfs is not enabled in the kernel, the value -%ENODEV will be
  * returned.
···
  * This function will return a pointer to a dentry if it succeeds.  This
  * pointer must be passed to the debugfs_remove() function when the file is
  * to be removed (no automatic cleanup happens if your module is unloaded,
- * you are responsible here.)  If an error occurs, %NULL will be returned.
+ * you are responsible here.)  If an error occurs, %ERR_PTR(-ERROR) will be
+ * returned.
  *
  * If debugfs is not enabled in the kernel, the value -%ENODEV will be
  * returned.
···
 	struct inode *inode;
 
 	if (IS_ERR(dentry))
-		return NULL;
+		return dentry;
 
 	inode = debugfs_get_inode(dentry->d_sb);
 	if (unlikely(!inode))
···
 	struct inode *inode;
 
 	if (IS_ERR(dentry))
-		return NULL;
+		return dentry;
 
 	inode = debugfs_get_inode(dentry->d_sb);
 	if (unlikely(!inode))
···
  * This function will return a pointer to a dentry if it succeeds.  This
  * pointer must be passed to the debugfs_remove() function when the symbolic
  * link is to be removed (no automatic cleanup happens if your module is
- * unloaded, you are responsible here.)  If an error occurs, %NULL will be
- * returned.
+ * unloaded, you are responsible here.)  If an error occurs, %ERR_PTR(-ERROR)
+ * will be returned.
  *
  * If debugfs is not enabled in the kernel, the value -%ENODEV will be
  * returned.
···
 	struct inode *inode;
 	char *link = kstrdup(target, GFP_KERNEL);
 	if (!link)
-		return NULL;
+		return ERR_PTR(-ENOMEM);
 
 	dentry = start_creating(name, parent);
 	if (IS_ERR(dentry)) {
 		kfree(link);
-		return NULL;
+		return dentry;
 	}
 
 	inode = debugfs_get_inode(dentry->d_sb);
···
 	struct dentry *dentry = NULL, *trap;
 	struct name_snapshot old_name;
 
+	if (IS_ERR(old_dir))
+		return old_dir;
+	if (IS_ERR(new_dir))
+		return new_dir;
+	if (IS_ERR_OR_NULL(old_dentry))
+		return old_dentry;
+
 	trap = lock_rename(new_dir, old_dir);
 	/* Source or destination directories don't exist? */
 	if (d_really_is_negative(old_dir) || d_really_is_negative(new_dir))
···
 	if (dentry && !IS_ERR(dentry))
 		dput(dentry);
 	unlock_rename(new_dir, old_dir);
-	return NULL;
+	if (IS_ERR(dentry))
+		return dentry;
+	return ERR_PTR(-EINVAL);
 }
 EXPORT_SYMBOL_GPL(debugfs_rename);
 

fs/drop_caches.c

···
 	spin_lock(&sb->s_inode_list_lock);
 	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
 		spin_lock(&inode->i_lock);
+		/*
+		 * We must skip inodes in unusual state. We may also skip
+		 * inodes without pages but we deliberately won't in case
+		 * we need to reschedule to avoid softlockups.
+		 */
 		if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) ||
-		    (inode->i_mapping->nrpages == 0)) {
+		    (inode->i_mapping->nrpages == 0 && !need_resched())) {
 			spin_unlock(&inode->i_lock);
 			continue;
 		}
···
 		spin_unlock(&inode->i_lock);
 		spin_unlock(&sb->s_inode_list_lock);
 
+		cond_resched();
 		invalidate_mapping_pages(inode->i_mapping, 0, -1);
 		iput(toput_inode);
 		toput_inode = inode;

fs/fuse/dev.c

···
 	req->in.h.nodeid = outarg->nodeid;
 	req->in.numargs = 2;
 	req->in.argpages = 1;
-	req->page_descs[0].offset = offset;
 	req->end = fuse_retrieve_end;
 
 	index = outarg->offset >> PAGE_SHIFT;
···
 
 		this_num = min_t(unsigned, num, PAGE_SIZE - offset);
 		req->pages[req->num_pages] = page;
+		req->page_descs[req->num_pages].offset = offset;
 		req->page_descs[req->num_pages].length = this_num;
 		req->num_pages++;
 
···
 
 	ret = fuse_dev_do_write(fud, &cs, len);
 
+	pipe_lock(pipe);
 	for (idx = 0; idx < nbuf; idx++)
 		pipe_buf_release(pipe, &bufs[idx]);
+	pipe_unlock(pipe);
 
 out:
 	kvfree(bufs);

fs/fuse/file.c

···
 		spin_unlock(&fc->lock);
 
 		dec_wb_stat(&bdi->wb, WB_WRITEBACK);
-		dec_node_page_state(page, NR_WRITEBACK_TEMP);
+		dec_node_page_state(new_req->pages[0], NR_WRITEBACK_TEMP);
 		wb_writeout_inc(&bdi->wb);
 		fuse_writepage_free(fc, new_req);
 		fuse_request_free(new_req);

fs/fuse/inode.c

···
 	get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key));
 	fc->pid_ns = get_pid_ns(task_active_pid_ns(current));
 	fc->user_ns = get_user_ns(user_ns);
+	fc->max_pages = FUSE_DEFAULT_MAX_PAGES_PER_REQ;
 }
 EXPORT_SYMBOL_GPL(fuse_conn_init);
 
···
 	fc->user_id = d.user_id;
 	fc->group_id = d.group_id;
 	fc->max_read = max_t(unsigned, 4096, d.max_read);
-	fc->max_pages = FUSE_DEFAULT_MAX_PAGES_PER_REQ;
 
 	/* Used by get_root_inode() */
 	sb->s_fs_info = fc;

fs/gfs2/rgrp.c

···
 			goto next_iter;
 		}
 		if (ret == -E2BIG) {
-			n += rbm->bii - initial_bii;
 			rbm->bii = 0;
 			rbm->offset = 0;
+			n += (rbm->bii - initial_bii);
 			goto res_covered_end_of_rgrp;
 		}
 		return ret;

fs/iomap.c

···
 	atomic_set(&iop->read_count, 0);
 	atomic_set(&iop->write_count, 0);
 	bitmap_zero(iop->uptodate, PAGE_SIZE / SECTOR_SIZE);
+
+	/*
+	 * migrate_page_move_mapping() assumes that pages with private data have
+	 * their count elevated by 1.
+	 */
+	get_page(page);
 	set_page_private(page, (unsigned long)iop);
 	SetPagePrivate(page);
 	return iop;
···
 	WARN_ON_ONCE(atomic_read(&iop->write_count));
 	ClearPagePrivate(page);
 	set_page_private(page, 0);
+	put_page(page);
 	kfree(iop);
 }
 
···
 
 	if (page_has_private(page)) {
 		ClearPagePrivate(page);
+		get_page(newpage);
 		set_page_private(newpage, page_private(page));
 		set_page_private(page, 0);
+		put_page(page);
 		SetPagePrivate(newpage);
 	}
 
···
 	loff_t pos = iocb->ki_pos, start = pos;
 	loff_t end = iocb->ki_pos + count - 1, ret = 0;
 	unsigned int flags = IOMAP_DIRECT;
+	bool wait_for_completion = is_sync_kiocb(iocb);
 	struct blk_plug plug;
 	struct iomap_dio *dio;
 
···
 	dio->end_io = end_io;
 	dio->error = 0;
 	dio->flags = 0;
-	dio->wait_for_completion = is_sync_kiocb(iocb);
 
 	dio->submit.iter = iter;
 	dio->submit.waiter = current;
···
 		dio_warn_stale_pagecache(iocb->ki_filp);
 	ret = 0;
 
-	if (iov_iter_rw(iter) == WRITE && !dio->wait_for_completion &&
+	if (iov_iter_rw(iter) == WRITE && !wait_for_completion &&
 	    !inode->i_sb->s_dio_done_wq) {
 		ret = sb_init_dio_done_wq(inode->i_sb);
 		if (ret < 0)
···
 		if (ret <= 0) {
 			/* magic error code to fall back to buffered I/O */
 			if (ret == -ENOTBLK) {
-				dio->wait_for_completion = true;
+				wait_for_completion = true;
 				ret = 0;
 			}
 			break;
···
 	if (dio->flags & IOMAP_DIO_WRITE_FUA)
 		dio->flags &= ~IOMAP_DIO_NEED_SYNC;
 
+	/*
+	 * We are about to drop our additional submission reference, which
+	 * might be the last reference to the dio.  There are three three
+	 * different ways we can progress here:
+	 *
+	 *  (a) If this is the last reference we will always complete and free
+	 *	the dio ourselves.
+	 *  (b) If this is not the last reference, and we serve an asynchronous
+	 *	iocb, we must never touch the dio after the decrement, the
+	 *	I/O completion handler will complete and free it.
+	 *  (c) If this is not the last reference, but we serve a synchronous
+	 *	iocb, the I/O completion handler will wake us up on the drop
+	 *	of the final reference, and we will complete and free it here
+	 *	after we got woken by the I/O completion handler.
+	 */
+	dio->wait_for_completion = wait_for_completion;
 	if (!atomic_dec_and_test(&dio->ref)) {
-		if (!dio->wait_for_completion)
+		if (!wait_for_completion)
 			return -EIOCBQUEUED;
 
 		for (;;) {
···
 		__set_current_state(TASK_RUNNING);
 	}
 
-	ret = iomap_dio_complete(dio);
-
-	return ret;
+	return iomap_dio_complete(dio);
 
 out_free_dio:
 	kfree(dio);

fs/nfs/super.c

···
 	size_t len;
 	char *end;
 
+	if (unlikely(!dev_name || !*dev_name)) {
+		dfprintk(MOUNT, "NFS: device name not specified\n");
+		return -EINVAL;
+	}
+
 	/* Is the host name protected with square brakcets? */
 	if (*dev_name == '[') {
 		end = strchr(++dev_name, ']');

fs/nfs/write.c

···
 	nfs_set_page_writeback(page);
 	WARN_ON_ONCE(test_bit(PG_CLEAN, &req->wb_flags));
 
-	ret = 0;
+	ret = req->wb_context->error;
 	/* If there is a fatal error that covers this write, just exit */
-	if (nfs_error_is_fatal_on_server(req->wb_context->error))
+	if (nfs_error_is_fatal_on_server(ret))
 		goto out_launder;
 
+	ret = 0;
 	if (!nfs_pageio_add_request(pgio, req)) {
 		ret = pgio->pg_error;
 		/*
···
 			nfs_context_set_write_error(req->wb_context, ret);
 			if (nfs_error_is_fatal_on_server(ret))
 				goto out_launder;
-		}
+		} else
+			ret = -EAGAIN;
 		nfs_redirty_request(req);
-		ret = -EAGAIN;
 	} else
 		nfs_add_stats(page_file_mapping(page)->host,
 				NFSIOS_WRITEPAGES, 1);

fs/nfsd/vfs.c

···
 	loff_t cloned;
 
 	cloned = vfs_clone_file_range(src, src_pos, dst, dst_pos, count, 0);
+	if (cloned < 0)
+		return nfserrno(cloned);
 	if (count && cloned != count)
-		cloned = -EINVAL;
-	return nfserrno(cloned < 0 ? cloned : 0);
+		return nfserrno(-EINVAL);
+	return 0;
 }
 
 ssize_t nfsd_copy_file_range(struct file *src, u64 src_pos, struct file *dst,

fs/proc/generic.c

···
 		inode = proc_get_inode(dir->i_sb, de);
 		if (!inode)
 			return ERR_PTR(-ENOMEM);
-		d_set_d_op(dentry, &proc_misc_dentry_ops);
+		d_set_d_op(dentry, de->proc_dops);
 		return d_splice_alias(inode, dentry);
 	}
 	read_unlock(&proc_subdir_lock);
···
 	spin_lock_init(&ent->pde_unload_lock);
 	INIT_LIST_HEAD(&ent->pde_openers);
 	proc_set_user(ent, (*parent)->uid, (*parent)->gid);
+
+	ent->proc_dops = &proc_misc_dentry_ops;
 
 out:
 	return ent;

fs/proc/internal.h

···
 	struct completion *pde_unload_completion;
 	const struct inode_operations *proc_iops;
 	const struct file_operations *proc_fops;
+	const struct dentry_operations *proc_dops;
 	union {
 		const struct seq_operations *seq_ops;
 		int (*single_show)(struct seq_file *, void *);

fs/proc/proc_net.c

···
 	return maybe_get_net(PDE_NET(PDE(inode)));
 }
 
+static int proc_net_d_revalidate(struct dentry *dentry, unsigned int flags)
+{
+	return 0;
+}
+
+static const struct dentry_operations proc_net_dentry_ops = {
+	.d_revalidate	= proc_net_d_revalidate,
+	.d_delete	= always_delete_dentry,
+};
+
+static void pde_force_lookup(struct proc_dir_entry *pde)
+{
+	/* /proc/net/ entries can be changed under us by setns(CLONE_NEWNET) */
+	pde->proc_dops = &proc_net_dentry_ops;
+}
+
 static int seq_open_net(struct inode *inode, struct file *file)
 {
 	unsigned int state_size = PDE(inode)->state_size;
···
 	p = proc_create_reg(name, mode, &parent, data);
 	if (!p)
 		return NULL;
+	pde_force_lookup(p);
 	p->proc_fops = &proc_net_seq_fops;
 	p->seq_ops = ops;
 	p->state_size = state_size;
···
 	p = proc_create_reg(name, mode, &parent, data);
 	if (!p)
 		return NULL;
+	pde_force_lookup(p);
 	p->proc_fops = &proc_net_seq_fops;
 	p->seq_ops = ops;
 	p->state_size = state_size;
···
 	p = proc_create_reg(name, mode, &parent, data);
 	if (!p)
 		return NULL;
+	pde_force_lookup(p);
 	p->proc_fops = &proc_net_single_fops;
 	p->single_show = show;
 	return proc_register(parent, p);
···
 	p = proc_create_reg(name, mode, &parent, data);
 	if (!p)
 		return NULL;
+	pde_force_lookup(p);
 	p->proc_fops = &proc_net_single_fops;
 	p->single_show = show;
 	p->write = write;

fs/xfs/scrub/repair.c

···
 		if (!uuid_equal(&btblock->bb_u.s.bb_uuid,
 				&mp->m_sb.sb_meta_uuid))
 			goto out;
+		/*
+		 * Read verifiers can reference b_ops, so we set the pointer
+		 * here.  If the verifier fails we'll reset the buffer state
+		 * to what it was before we touched the buffer.
+		 */
+		bp->b_ops = fab->buf_ops;
 		fab->buf_ops->verify_read(bp);
 		if (bp->b_error) {
+			bp->b_ops = NULL;
 			bp->b_error = 0;
 			goto out;
 		}
 
 		/*
 		 * Some read verifiers will (re)set b_ops, so we must be
-		 * careful not to blow away any such assignment.
+		 * careful not to change b_ops after running the verifier.
 		 */
-		if (!bp->b_ops)
-			bp->b_ops = fab->buf_ops;
 	}
 
 	/*

fs/xfs/xfs_aops.c

···
 	}
 
 	wpc->imap = imap;
+	xfs_trim_extent_eof(&wpc->imap, ip);
 	trace_xfs_map_blocks_found(ip, offset, count, wpc->io_type, &imap);
 	return 0;
 allocate_blocks:
···
 	ASSERT(whichfork == XFS_COW_FORK || cow_fsb == NULLFILEOFF ||
 	       imap.br_startoff + imap.br_blockcount <= cow_fsb);
 	wpc->imap = imap;
+	xfs_trim_extent_eof(&wpc->imap, ip);
 	trace_xfs_map_blocks_alloc(ip, offset, count, wpc->io_type, &imap);
 	return 0;
 }

fs/xfs/xfs_buf.c

···
 }
 
 /*
+ * Set buffer ops on an unchecked buffer and validate it, if possible.
+ *
  * If the caller passed in an ops structure and the buffer doesn't have ops
  * assigned, set the ops and use them to verify the contents.  If the contents
  * cannot be verified, we'll clear XBF_DONE.  We assume the buffer has no
  * recorded errors and is already in XBF_DONE state.
+ *
+ * Under normal operations, every in-core buffer must have buffer ops assigned
+ * to them when the buffer is read in from disk so that we can validate the
+ * metadata.
+ *
+ * However, there are two scenarios where one can encounter in-core buffers
+ * that don't have buffer ops.  The first is during log recovery of buffers on
+ * a V4 filesystem, though these buffers are purged at the end of recovery.
+ *
+ * The other is online repair, which tries to match arbitrary metadata blocks
+ * with btree types in order to find the root.  If online repair doesn't match
+ * the buffer with /any/ btree type, the buffer remains in memory in DONE state
+ * with no ops, and a subsequent read_buf call from elsewhere will not set the
+ * ops.  This function helps us fix this situation.
  */
 int
 xfs_buf_ensure_ops(
···
 		xfs_buf_ioerror(bp, -EIO);
 		bp->b_flags &= ~XBF_DONE;
 		xfs_buf_stale(bp);
-		if (bp->b_flags & XBF_ASYNC)
-			xfs_buf_ioend(bp);
+		xfs_buf_ioend(bp);
 		return -EIO;
 	}
 

include/dt-bindings/clock/imx8mq-clock.h

···
 #define IMX8MQ_CLK_VPU_G2_ROOT			241
 
 /* SCCG PLL GATE */
-#define IMX8MQ_SYS1_PLL_OUT			232
+#define IMX8MQ_SYS1_PLL_OUT			242
 #define IMX8MQ_SYS2_PLL_OUT			243
 #define IMX8MQ_SYS3_PLL_OUT			244
 #define IMX8MQ_DRAM_PLL_OUT			245
···
 /* txesc clock */
 #define IMX8MQ_CLK_DSI_IPG_DIV                  256
 
-#define IMX8MQ_CLK_TMU_ROOT			265
+#define IMX8MQ_CLK_TMU_ROOT			257
 
 /* Display root clocks */
-#define IMX8MQ_CLK_DISP_AXI_ROOT		266
-#define IMX8MQ_CLK_DISP_APB_ROOT		267
-#define IMX8MQ_CLK_DISP_RTRM_ROOT		268
+#define IMX8MQ_CLK_DISP_AXI_ROOT		258
+#define IMX8MQ_CLK_DISP_APB_ROOT		259
+#define IMX8MQ_CLK_DISP_RTRM_ROOT		260
 
-#define IMX8MQ_CLK_OCOTP_ROOT			269
+#define IMX8MQ_CLK_OCOTP_ROOT			261
 
-#define IMX8MQ_CLK_DRAM_ALT_ROOT		270
-#define IMX8MQ_CLK_DRAM_CORE			271
+#define IMX8MQ_CLK_DRAM_ALT_ROOT		262
+#define IMX8MQ_CLK_DRAM_CORE			263
 
-#define IMX8MQ_CLK_MU_ROOT			272
-#define IMX8MQ_VIDEO2_PLL_OUT			273
+#define IMX8MQ_CLK_MU_ROOT			264
+#define IMX8MQ_VIDEO2_PLL_OUT			265
 
-#define IMX8MQ_CLK_CLKO2			274
+#define IMX8MQ_CLK_CLKO2			266
 
-#define IMX8MQ_CLK_NAND_USDHC_BUS_RAWNAND_CLK	275
+#define IMX8MQ_CLK_NAND_USDHC_BUS_RAWNAND_CLK	267
 
-#define IMX8MQ_CLK_END				276
+#define IMX8MQ_CLK_END				268
 #endif /* __DT_BINDINGS_CLOCK_IMX8MQ_H */

include/dt-bindings/clock/marvell,mmp2.h

···
 #define MMP2_CLK_CCIC1_MIX		117
 #define MMP2_CLK_CCIC1_PHY		118
 #define MMP2_CLK_CCIC1_SPHY		119
-#define MMP2_CLK_SP			120
 
 #define MMP2_NR_CLKS			200
 #endif

include/linux/blktrace_api.h

···
 
 static inline sector_t blk_rq_trace_sector(struct request *rq)
 {
-	return blk_rq_is_passthrough(rq) ? 0 : blk_rq_pos(rq);
+	/*
+	 * Tracing should ignore starting sector for passthrough requests and
+	 * requests where starting sector didn't get set.
+	 */
+	if (blk_rq_is_passthrough(rq) || blk_rq_pos(rq) == (sector_t)-1)
+		return 0;
+	return blk_rq_pos(rq);
 }
 
 static inline unsigned int blk_rq_trace_nr_sectors(struct request *rq)

include/linux/cpu.h

···
 #if defined(CONFIG_SMP) && defined(CONFIG_HOTPLUG_SMT)
 extern enum cpuhp_smt_control cpu_smt_control;
 extern void cpu_smt_disable(bool force);
-extern void cpu_smt_check_topology_early(void);
 extern void cpu_smt_check_topology(void);
 #else
 # define cpu_smt_control		(CPU_SMT_ENABLED)
 static inline void cpu_smt_disable(bool force) { }
-static inline void cpu_smt_check_topology_early(void) { }
 static inline void cpu_smt_check_topology(void) { }
 #endif
 

include/linux/dcache.h

···
 struct dentry_stat_t {
 	long nr_dentry;
 	long nr_unused;
-	long age_limit;          /* age in seconds */
-	long want_pages;         /* pages requested by system */
-	long dummy[2];
+	long age_limit;		/* age in seconds */
+	long want_pages;	/* pages requested by system */
+	long nr_negative;	/* # of unused negative dentries */
+	long dummy;		/* Reserved for future use */
 };
 extern struct dentry_stat_t dentry_stat;
 

include/linux/filter.h

···
 	return qdisc_skb_cb(skb)->data;
 }
 
-static inline u32 bpf_prog_run_save_cb(const struct bpf_prog *prog,
-				       struct sk_buff *skb)
+static inline u32 __bpf_prog_run_save_cb(const struct bpf_prog *prog,
+					 struct sk_buff *skb)
 {
 	u8 *cb_data = bpf_skb_cb(skb);
 	u8 cb_saved[BPF_SKB_CB_LEN];
···
 	return res;
 }
 
+static inline u32 bpf_prog_run_save_cb(const struct bpf_prog *prog,
+				       struct sk_buff *skb)
+{
+	u32 res;
+
+	preempt_disable();
+	res = __bpf_prog_run_save_cb(prog, skb);
+	preempt_enable();
+	return res;
+}
+
 static inline u32 bpf_prog_run_clear_cb(const struct bpf_prog *prog,
 					struct sk_buff *skb)
 {
 	u8 *cb_data = bpf_skb_cb(skb);
+	u32 res;
 
 	if (unlikely(prog->cb_access))
 		memset(cb_data, 0, BPF_SKB_CB_LEN);
 
-	return BPF_PROG_RUN(prog, skb);
+	preempt_disable();
+	res = BPF_PROG_RUN(prog, skb);
+	preempt_enable();
+	return res;
 }
 
 static __always_inline u32 bpf_prog_run_xdp(const struct bpf_prog *prog,

include/linux/fs.h

···
 	struct user_namespace *s_user_ns;
 
 	/*
-	 * Keep the lru lists last in the structure so they always sit on their
-	 * own individual cachelines.
+	 * The list_lru structure is essentially just a pointer to a table
+	 * of per-node lru lists, each of which has its own spinlock.
+	 * There is no need to put them into separate cachelines.
 	 */
-	struct list_lru		s_dentry_lru ____cacheline_aligned_in_smp;
-	struct list_lru		s_inode_lru ____cacheline_aligned_in_smp;
+	struct list_lru		s_dentry_lru;
+	struct list_lru		s_inode_lru;
 	struct rcu_head		rcu;
 	struct work_struct	destroy_work;
 

include/linux/hid-debug.h

···
 
 #ifdef CONFIG_DEBUG_FS
 
+#include <linux/kfifo.h>
+
 #define HID_DEBUG_BUFSIZE 512
+#define HID_DEBUG_FIFOSIZE 512
 
 void hid_dump_input(struct hid_device *, struct hid_usage *, __s32);
 void hid_dump_report(struct hid_device *, int , u8 *, int);
···
 void hid_debug_exit(void);
 void hid_debug_event(struct hid_device *, char *);
 
-
 struct hid_debug_list {
-	char *hid_debug_buf;
-	int head;
-	int tail;
+	DECLARE_KFIFO_PTR(hid_debug_fifo, char);
 	struct fasync_struct *fasync;
 	struct hid_device *hdev;
 	struct list_head node;
···
 #endif
 
 #endif
-

include/linux/ide.h

···
 
 	/* current sense rq and buffer */
 	bool sense_rq_armed;
+	bool sense_rq_active;
 	struct request *sense_rq;
 	struct request_sense sense_data;
 
···
 extern void ide_timer_expiry(struct timer_list *t);
 extern irqreturn_t ide_intr(int irq, void *dev_id);
 extern blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *, const struct blk_mq_queue_data *);
+extern blk_status_t ide_issue_rq(ide_drive_t *, struct request *, bool);
 extern void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq);
 
 void ide_init_disk(struct gendisk *, ide_drive_t *);

include/linux/irqchip/arm-gic-v3.h

···
 #define GITS_TYPER_PLPIS		(1UL << 0)
 #define GITS_TYPER_VLPIS		(1UL << 1)
 #define GITS_TYPER_ITT_ENTRY_SIZE_SHIFT	4
-#define GITS_TYPER_ITT_ENTRY_SIZE(r)	((((r) >> GITS_TYPER_ITT_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
+#define GITS_TYPER_ITT_ENTRY_SIZE(r)	((((r) >> GITS_TYPER_ITT_ENTRY_SIZE_SHIFT) & 0xf) + 1)
 #define GITS_TYPER_IDBITS_SHIFT		8
 #define GITS_TYPER_DEVBITS_SHIFT	13
 #define GITS_TYPER_DEVBITS(r)		((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)

include/linux/memory_hotplug.h

···
  * walkers which rely on the fully initialized page->flags and others
  * should use this rather than pfn_valid && pfn_to_page
  */
-#define pfn_to_online_page(pfn)				\
-({							\
-	struct page *___page = NULL;			\
-	unsigned long ___nr = pfn_to_section_nr(pfn);	\
-							\
-	if (___nr < NR_MEM_SECTIONS && online_section_nr(___nr))\
-		___page = pfn_to_page(pfn);		\
-	___page;					\
+#define pfn_to_online_page(pfn)					   \
+({								   \
+	struct page *___page = NULL;				   \
+	unsigned long ___pfn = pfn;				   \
+	unsigned long ___nr = pfn_to_section_nr(___pfn);	   \
+								   \
+	if (___nr < NR_MEM_SECTIONS && online_section_nr(___nr) && \
+	    pfn_valid_within(___pfn))				   \
+		___page = pfn_to_page(___pfn);			   \
+	___page;						   \
 })
 
 /*

include/linux/netdevice.h

···
  * @IFF_NO_RX_HANDLER: device doesn't support the rx_handler hook
  * @IFF_FAILOVER: device is a failover master device
  * @IFF_FAILOVER_SLAVE: device is lower dev of a failover master device
+ * @IFF_L3MDEV_RX_HANDLER: only invoke the rx handler of L3 master device
  */
 enum netdev_priv_flags {
 	IFF_802_1Q_VLAN			= 1<<0,
···
 	IFF_NO_RX_HANDLER		= 1<<26,
 	IFF_FAILOVER			= 1<<27,
 	IFF_FAILOVER_SLAVE		= 1<<28,
+	IFF_L3MDEV_RX_HANDLER		= 1<<29,
 };
 
 #define IFF_802_1Q_VLAN			IFF_802_1Q_VLAN
···
 #define IFF_NO_RX_HANDLER		IFF_NO_RX_HANDLER
 #define IFF_FAILOVER			IFF_FAILOVER
 #define IFF_FAILOVER_SLAVE		IFF_FAILOVER_SLAVE
+#define IFF_L3MDEV_RX_HANDLER		IFF_L3MDEV_RX_HANDLER
 
 /**
  *	struct net_device - The DEVICE structure.
···
 static inline bool netif_supports_nofcs(struct net_device *dev)
 {
 	return dev->priv_flags & IFF_SUPP_NOFCS;
+}
+
+static inline bool netif_has_l3_rx_handler(const struct net_device *dev)
+{
+	return dev->priv_flags & IFF_L3MDEV_RX_HANDLER;
 }
 
 static inline bool netif_is_l3_master(const struct net_device *dev)

include/linux/pm_runtime.h

···
 
 static inline void pm_runtime_mark_last_busy(struct device *dev)
 {
-	WRITE_ONCE(dev->power.last_busy, ktime_to_ns(ktime_get()));
+	WRITE_ONCE(dev->power.last_busy, ktime_get_mono_fast_ns());
 }
 
 static inline bool pm_runtime_is_irq_safe(struct device *dev)

include/linux/sched.h

···
 	/* cg_list protected by css_set_lock and tsk->alloc_lock: */
 	struct list_head		cg_list;
 #endif
-#ifdef CONFIG_X86_RESCTRL
+#ifdef CONFIG_X86_CPU_RESCTRL
 	u32				closid;
 	u32				rmid;
 #endif

include/linux/sched/coredump.h

···
 #define MMF_HUGE_ZERO_PAGE	23      /* mm has ever used the global huge zero page */
 #define MMF_DISABLE_THP		24	/* disable THP for all VMAs */
 #define MMF_OOM_VICTIM		25	/* mm is the oom victim */
+#define MMF_OOM_REAP_QUEUED	26	/* mm was queued for oom_reaper */
 #define MMF_DISABLE_THP_MASK	(1 << MMF_DISABLE_THP)
 
 #define MMF_INIT_MASK		(MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\

include/linux/signal.h

···
 #endif
 
 #define siginmask(sig, mask) \
-	((sig) < SIGRTMIN && (rt_sigmask(sig) & (mask)))
+	((sig) > 0 && (sig) < SIGRTMIN && (rt_sigmask(sig) & (mask)))
 
 #define SIG_KERNEL_ONLY_MASK (\
 	rt_sigmask(SIGKILL)   |  rt_sigmask(SIGSTOP))

include/linux/stmmac.h

···
 	struct clk *pclk;
 	struct clk *clk_ptp_ref;
 	unsigned int clk_ptp_rate;
+	unsigned int clk_ref_rate;
 	struct reset_control *stmmac_rst;
 	struct stmmac_axi *axi;
 	int has_gmac4;

include/net/l3mdev.h

···
 
 	if (netif_is_l3_slave(skb->dev))
 		master = netdev_master_upper_dev_get_rcu(skb->dev);
-	else if (netif_is_l3_master(skb->dev))
+	else if (netif_is_l3_master(skb->dev) ||
+		 netif_has_l3_rx_handler(skb->dev))
 		master = skb->dev;
 
 	if (master && master->l3mdev_ops->l3mdev_l3_rcv)

include/net/netfilter/nf_tables.h

···
 int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
 		       struct nft_set_binding *binding);
 void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set,
-			  struct nft_set_binding *binding);
-void nf_tables_rebind_set(const struct nft_ctx *ctx, struct nft_set *set,
-			  struct nft_set_binding *binding);
+			  struct nft_set_binding *binding, bool commit);
 void nf_tables_destroy_set(const struct nft_ctx *ctx, struct nft_set *set);
 
 /**
···
 #define NFT_EXPR_STATEFUL		0x1
 #define NFT_EXPR_GC			0x2
 
+enum nft_trans_phase {
+	NFT_TRANS_PREPARE,
+	NFT_TRANS_ABORT,
+	NFT_TRANS_COMMIT,
+	NFT_TRANS_RELEASE
+};
+
 /**
  *	struct nft_expr_ops - nf_tables expression operations
  *
···
 	void				(*activate)(const struct nft_ctx *ctx,
 						    const struct nft_expr *expr);
 	void				(*deactivate)(const struct nft_ctx *ctx,
-						      const struct nft_expr *expr);
+						      const struct nft_expr *expr,
+						      enum nft_trans_phase phase);
 	void				(*destroy)(const struct nft_ctx *ctx,
 						   const struct nft_expr *expr);
 	void				(*destroy_clone)(const struct nft_ctx *ctx,
···
 struct nft_trans_set {
 	struct nft_set			*set;
 	u32				set_id;
+	bool				bound;
 };
 
 #define nft_trans_set(trans)	\
 	(((struct nft_trans_set *)trans->data)->set)
 #define nft_trans_set_id(trans)	\
 	(((struct nft_trans_set *)trans->data)->set_id)
+#define nft_trans_set_bound(trans)	\
+	(((struct nft_trans_set *)trans->data)->bound)
 
 struct nft_trans_chain {
 	bool				update;

include/net/tls.h

···
 	struct scatterlist sg_aead_out[2];
 
 	char aad_space[TLS_AAD_SPACE_SIZE];
+	u8 iv_data[TLS_CIPHER_AES_GCM_128_IV_SIZE +
+		   TLS_CIPHER_AES_GCM_128_SALT_SIZE];
 	struct aead_request aead_req;
 	u8 aead_req_ctx[];
 };

include/rdma/ib_verbs.h

···
 
 	const struct uapi_definition   *driver_def;
 	enum rdma_driver_id		driver_id;
+
 	/*
-	 * Provides synchronization between device unregistration and netlink
-	 * commands on a device. To be used only by core.
+	 * Positive refcount indicates that the device is currently
+	 * registered and cannot be unregistered.
 	 */
 	refcount_t refcount;
 	struct completion unreg_completion;
···
 int ib_check_mr_status(struct ib_mr *mr, u32 check_mask,
 		       struct ib_mr_status *mr_status);
 
+/**
+ * ib_device_try_get: Hold a registration lock
+ * device: The device to lock
+ *
+ * A device under an active registration lock cannot become unregistered. It
+ * is only possible to obtain a registration lock on a device that is fully
+ * registered, otherwise this function returns false.
+ *
+ * The registration lock is only necessary for actions which require the
+ * device to still be registered. Uses that only require the device pointer to
+ * be valid should use get_device(&ibdev->dev) to hold the memory.
+ *
+ */
+static inline bool ib_device_try_get(struct ib_device *dev)
+{
+	return refcount_inc_not_zero(&dev->refcount);
+}
+
+void ib_device_put(struct ib_device *device);
 struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port,
 					    u16 pkey, const union ib_gid *gid,
 					    const struct sockaddr *addr);

include/sound/compress_driver.h

···
 	if (snd_BUG_ON(!stream))
 		return;
 
-	stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+	if (stream->direction == SND_COMPRESS_PLAYBACK)
+		stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+	else
+		stream->runtime->state = SNDRV_PCM_STATE_PREPARED;
+
 	wake_up(&stream->runtime->sleep);
 }
 

include/sound/hda_codec.h

···
 	unsigned int response_reset:1;	/* controller was reset */
 	unsigned int in_reset:1;	/* during reset operation */
 	unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
+	unsigned int bus_probing :1;	/* during probing process */
 
 	int primary_dig_out_type;	/* primary digital out PCM type */
 	unsigned int mixer_assigned;	/* codec addr for mixer name */

include/uapi/linux/virtio_config.h

···
 #define VIRTIO_F_RING_PACKED		34
 
 /*
+ * This feature indicates that memory accesses by the driver and the
+ * device are ordered in a way described by the platform.
+ */
+#define VIRTIO_F_ORDER_PLATFORM		36
+
+/*
  * Does the device support Single Root I/O Virtualization?
  */
 #define VIRTIO_F_SR_IOV			37

include/uapi/linux/virtio_ring.h

···
 	__le16 flags;
 };
 
-struct vring_packed {
-	unsigned int num;
-
-	struct vring_packed_desc *desc;
-
-	struct vring_packed_desc_event *driver;
-
-	struct vring_packed_desc_event *device;
-};
-
 #endif /* _UAPI_LINUX_VIRTIO_RING_H */

include/uapi/rdma/hns-abi.h

···
 	__aligned_u64 que_addr;
 };
 
+struct hns_roce_ib_create_srq_resp {
+	__u32	srqn;
+	__u32	reserved;
+};
+
 struct hns_roce_ib_create_qp {
 	__aligned_u64 buf_addr;
 	__aligned_u64 db_addr;

init/Kconfig

···
 	  per default but can be enabled through passing psi=1 on the
 	  kernel commandline during boot.
 
+	  This feature adds some code to the task wakeup and sleep
+	  paths of the scheduler. The overhead is too low to affect
+	  common scheduling-intense workloads in practice (such as
+	  webservers, memcache), but it does show up in artificial
+	  scheduler stress tests, such as hackbench.
+
+	  If you are paranoid and not sure what the kernel will be
+	  used for, say Y.
+
+	  Say N if unsure.
+
 endmenu # "CPU/Task time and stats accounting"
 
 config CPU_ISOLATION
···
 	  PIDs controller is designed to stop this from happening.
 
 	  It should be noted that organisational operations (such as attaching
-	  to a cgroup hierarchy will *not* be blocked by the PIDs controller),
+	  to a cgroup hierarchy) will *not* be blocked by the PIDs controller,
 	  since the PIDs limit only affects a process's ability to fork, not to
 	  attach to a cgroup.
 

kernel/bpf/btf.c

···
 
 		/* "typedef void new_void", "const void"...etc */
 		if (!btf_type_is_void(next_type) &&
-		    !btf_type_is_fwd(next_type)) {
+		    !btf_type_is_fwd(next_type) &&
+		    !btf_type_is_func_proto(next_type)) {
 			btf_verifier_log_type(env, v->t, "Invalid type_id");
 			return -EINVAL;
 		}

kernel/bpf/cgroup.c

···
 	bpf_compute_and_save_data_end(skb, &saved_data_end);
 
 	ret = BPF_PROG_RUN_ARRAY(cgrp->bpf.effective[type], skb,
-				 bpf_prog_run_save_cb);
+				 __bpf_prog_run_save_cb);
 	bpf_restore_data_end(skb, saved_data_end);
 	__skb_pull(skb, offset);
 	skb->sk = save_sk;

kernel/bpf/hashtab.c

···
 	}
 
 	if (htab_is_prealloc(htab)) {
-		pcpu_freelist_push(&htab->freelist, &l->fnode);
+		__pcpu_freelist_push(&htab->freelist, &l->fnode);
 	} else {
 		atomic_dec(&htab->count);
 		l->htab = htab;
···
 		} else {
 			struct pcpu_freelist_node *l;
 
-			l = pcpu_freelist_pop(&htab->freelist);
+			l = __pcpu_freelist_pop(&htab->freelist);
 			if (!l)
 				return ERR_PTR(-E2BIG);
 			l_new = container_of(l, struct htab_elem, fnode);

kernel/bpf/percpu_freelist.c

···
 	free_percpu(s->freelist);
 }
 
-static inline void __pcpu_freelist_push(struct pcpu_freelist_head *head,
-					struct pcpu_freelist_node *node)
+static inline void ___pcpu_freelist_push(struct pcpu_freelist_head *head,
+					 struct pcpu_freelist_node *node)
 {
 	raw_spin_lock(&head->lock);
 	node->next = head->first;
···
 	raw_spin_unlock(&head->lock);
 }
 
-void pcpu_freelist_push(struct pcpu_freelist *s,
+void __pcpu_freelist_push(struct pcpu_freelist *s,
 			struct pcpu_freelist_node *node)
 {
 	struct pcpu_freelist_head *head = this_cpu_ptr(s->freelist);
 
-	__pcpu_freelist_push(head, node);
+	___pcpu_freelist_push(head, node);
+}
+
+void pcpu_freelist_push(struct pcpu_freelist *s,
+			struct pcpu_freelist_node *node)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	__pcpu_freelist_push(s, node);
+	local_irq_restore(flags);
 }
 
 void pcpu_freelist_populate(struct pcpu_freelist *s, void *buf, u32 elem_size,
···
 	for_each_possible_cpu(cpu) {
 again:
 		head = per_cpu_ptr(s->freelist, cpu);
-		__pcpu_freelist_push(head, buf);
+		___pcpu_freelist_push(head, buf);
 		i++;
 		buf += elem_size;
 		if (i == nr_elems)
···
 	local_irq_restore(flags);
 }
 
-struct pcpu_freelist_node *pcpu_freelist_pop(struct pcpu_freelist *s)
+struct pcpu_freelist_node *__pcpu_freelist_pop(struct pcpu_freelist *s)
 {
 	struct pcpu_freelist_head *head;
 	struct pcpu_freelist_node *node;
-	unsigned long flags;
 	int orig_cpu, cpu;
 
-	local_irq_save(flags);
 	orig_cpu = cpu = raw_smp_processor_id();
 	while (1) {
 		head = per_cpu_ptr(s->freelist, cpu);
···
 		node = head->first;
 		if (node) {
 			head->first = node->next;
-			raw_spin_unlock_irqrestore(&head->lock, flags);
+			raw_spin_unlock(&head->lock);
 			return node;
 		}
 		raw_spin_unlock(&head->lock);
 		cpu = cpumask_next(cpu, cpu_possible_mask);
 		if (cpu >= nr_cpu_ids)
 			cpu = 0;
-		if (cpu == orig_cpu) {
-			local_irq_restore(flags);
+		if (cpu == orig_cpu)
 			return NULL;
-		}
 	}
+}
+
+struct pcpu_freelist_node *pcpu_freelist_pop(struct pcpu_freelist *s)
+{
+	struct pcpu_freelist_node *ret;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	ret = __pcpu_freelist_pop(s);
+	local_irq_restore(flags);
+	return ret;
 }

kernel/bpf/percpu_freelist.h

···
 	struct pcpu_freelist_node *next;
 };
 
+/* pcpu_freelist_* do spin_lock_irqsave. */
 void pcpu_freelist_push(struct pcpu_freelist *, struct pcpu_freelist_node *);
 struct pcpu_freelist_node *pcpu_freelist_pop(struct pcpu_freelist *);
+/* __pcpu_freelist_* do spin_lock only. caller must disable irqs. */
+void __pcpu_freelist_push(struct pcpu_freelist *, struct pcpu_freelist_node *);
+struct pcpu_freelist_node *__pcpu_freelist_pop(struct pcpu_freelist *);
 void pcpu_freelist_populate(struct pcpu_freelist *s, void *buf, u32 elem_size,
 			    u32 nr_elems);
 int pcpu_freelist_init(struct pcpu_freelist *);

kernel/bpf/syscall.c

···
 
 	if (bpf_map_is_dev_bound(map)) {
 		err = bpf_map_offload_lookup_elem(map, key, value);
-	} else if (map->map_type == BPF_MAP_TYPE_PERCPU_HASH ||
-		   map->map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH) {
+		goto done;
+	}
+
+	preempt_disable();
+	this_cpu_inc(bpf_prog_active);
+	if (map->map_type == BPF_MAP_TYPE_PERCPU_HASH ||
+	    map->map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH) {
 		err = bpf_percpu_hash_copy(map, key, value);
 	} else if (map->map_type == BPF_MAP_TYPE_PERCPU_ARRAY) {
 		err = bpf_percpu_array_copy(map, key, value);
···
 		}
 		rcu_read_unlock();
 	}
+	this_cpu_dec(bpf_prog_active);
+	preempt_enable();
 
+done:
 	if (err)
 		goto free_value;
 

kernel/cpu.c

···
 
 #ifdef CONFIG_HOTPLUG_SMT
 enum cpuhp_smt_control cpu_smt_control __read_mostly = CPU_SMT_ENABLED;
-EXPORT_SYMBOL_GPL(cpu_smt_control);
-
-static bool cpu_smt_available __read_mostly;
 
 void __init cpu_smt_disable(bool force)
 {
···
 
 /*
  * The decision whether SMT is supported can only be done after the full
- * CPU identification. Called from architecture code before non boot CPUs
- * are brought up.
- */
-void __init cpu_smt_check_topology_early(void)
-{
-	if (!topology_smt_supported())
-		cpu_smt_control = CPU_SMT_NOT_SUPPORTED;
-}
-
-/*
- * If SMT was disabled by BIOS, detect it here, after the CPUs have been
- * brought online. This ensures the smt/l1tf sysfs entries are consistent
- * with reality. cpu_smt_available is set to true during the bringup of non
- * boot CPUs when a SMT sibling is detected. Note, this may overwrite
- * cpu_smt_control's previous setting.
+ * CPU identification. Called from architecture code.
  */
 void __init cpu_smt_check_topology(void)
 {
-	if (!cpu_smt_available)
+	if (!topology_smt_supported())
 		cpu_smt_control = CPU_SMT_NOT_SUPPORTED;
 }
 
···
 
 static inline bool cpu_smt_allowed(unsigned int cpu)
 {
-	if (topology_is_primary_thread(cpu))
+	if (cpu_smt_control == CPU_SMT_ENABLED)
 		return true;
 
-	/*
-	 * If the CPU is not a 'primary' thread and the booted_once bit is
-	 * set then the processor has SMT support. Store this information
-	 * for the late check of SMT support in cpu_smt_check_topology().
-	 */
-	if (per_cpu(cpuhp_state, cpu).booted_once)
-		cpu_smt_available = true;
-
-	if (cpu_smt_control == CPU_SMT_ENABLED)
+	if (topology_is_primary_thread(cpu))
 		return true;
 
 	/*
···
 		 */
 		cpuhp_offline_cpu_device(cpu);
 	}
-	if (!ret) {
+	if (!ret)
 		cpu_smt_control = ctrlval;
-		arch_smt_update();
-	}
 	cpu_maps_update_done();
 	return ret;
 }
···
 
 	cpu_maps_update_begin();
 	cpu_smt_control = CPU_SMT_ENABLED;
-	arch_smt_update();
 	for_each_present_cpu(cpu) {
 		/* Skip online CPUs and CPUs on offline nodes */
 		if (cpu_online(cpu) || !node_online(cpu_to_node(cpu)))

kernel/events/core.c

···
 		void __user *buffer, size_t *lenp,
 		loff_t *ppos)
 {
-	int ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
-
-	if (ret || !write)
-		return ret;
-
+	int ret;
+	int perf_cpu = sysctl_perf_cpu_time_max_percent;
 	/*
 	 * If throttling is disabled don't allow the write:
 	 */
-	if (sysctl_perf_cpu_time_max_percent == 100 ||
-	    sysctl_perf_cpu_time_max_percent == 0)
+	if (write && (perf_cpu == 100 || perf_cpu == 0))
 		return -EINVAL;
+
+	ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+	if (ret || !write)
+		return ret;
 
 	max_samples_per_tick = DIV_ROUND_UP(sysctl_perf_event_sample_rate, HZ);
 	perf_sample_period_ns = NSEC_PER_SEC / sysctl_perf_event_sample_rate;

kernel/events/ring_buffer.c

···
 	size = sizeof(struct ring_buffer);
 	size += nr_pages * sizeof(void *);
 
+	if (order_base_2(size) >= MAX_ORDER)
+		goto fail;
+
 	rb = kzalloc(size, GFP_KERNEL);
 	if (!rb)
 		goto fail;

kernel/exit.c

···
 	return NULL;
 }
 
-static struct task_struct *find_child_reaper(struct task_struct *father)
+static struct task_struct *find_child_reaper(struct task_struct *father,
+						struct list_head *dead)
 	__releases(&tasklist_lock)
 	__acquires(&tasklist_lock)
 {
 	struct pid_namespace *pid_ns = task_active_pid_ns(father);
 	struct task_struct *reaper = pid_ns->child_reaper;
+	struct task_struct *p, *n;
 
 	if (likely(reaper != father))
 		return reaper;
···
 		panic("Attempted to kill init! exitcode=0x%08x\n",
 			father->signal->group_exit_code ?: father->exit_code);
 	}
+
+	list_for_each_entry_safe(p, n, dead, ptrace_entry) {
+		list_del_init(&p->ptrace_entry);
+		release_task(p);
+	}
+
 	zap_pid_ns_processes(pid_ns);
 	write_lock_irq(&tasklist_lock);
 
···
 		exit_ptrace(father, dead);
 
 	/* Can drop and reacquire tasklist_lock */
-	reaper = find_child_reaper(father);
+	reaper = find_child_reaper(father, dead);
 	if (list_empty(&father->children))
 		return;
 

kernel/futex.c

···
 	 * decrement the counter at queue_unlock() when some error has
 	 * occurred and we don't end up adding the task to the list.
 	 */
-	hb_waiters_inc(hb);
+	hb_waiters_inc(hb); /* implies smp_mb(); (A) */
 
 	q->lock_ptr = &hb->lock;
 
-	spin_lock(&hb->lock); /* implies smp_mb(); (A) */
+	spin_lock(&hb->lock);
 	return hb;
 }
 
···
 	 * and BUG when futex_unlock_pi() interleaves with this.
 	 *
 	 * Therefore acquire wait_lock while holding hb->lock, but drop the
-	 * latter before calling rt_mutex_start_proxy_lock(). This still fully
-	 * serializes against futex_unlock_pi() as that does the exact same
-	 * lock handoff sequence.
+	 * latter before calling __rt_mutex_start_proxy_lock(). This
+	 * interleaves with futex_unlock_pi() -- which does a similar lock
+	 * handoff -- such that the latter can observe the futex_q::pi_state
+	 * before __rt_mutex_start_proxy_lock() is done.
 	 */
 	raw_spin_lock_irq(&q.pi_state->pi_mutex.wait_lock);
 	spin_unlock(q.lock_ptr);
+	/*
+	 * __rt_mutex_start_proxy_lock() unconditionally enqueues the @rt_waiter
+	 * such that futex_unlock_pi() is guaranteed to observe the waiter when
+	 * it sees the futex_q::pi_state.
+	 */
 	ret = __rt_mutex_start_proxy_lock(&q.pi_state->pi_mutex, &rt_waiter, current);
 	raw_spin_unlock_irq(&q.pi_state->pi_mutex.wait_lock);
 
 	if (ret) {
 		if (ret == 1)
 			ret = 0;
-
-		spin_lock(q.lock_ptr);
-		goto no_block;
+		goto cleanup;
 	}
-
 
 	if (unlikely(to))
 		hrtimer_start_expires(&to->timer, HRTIMER_MODE_ABS);
 
 	ret = rt_mutex_wait_proxy_lock(&q.pi_state->pi_mutex, to, &rt_waiter);
 
+cleanup:
 	spin_lock(q.lock_ptr);
 	/*
-	 * If we failed to acquire the lock (signal/timeout), we must
+	 * If we failed to acquire the lock (deadlock/signal/timeout), we must
 	 * first acquire the hb->lock before removing the lock from the
-	 * rt_mutex waitqueue, such that we can keep the hb and rt_mutex
-	 * wait lists consistent.
+	 * rt_mutex waitqueue, such that we can keep the hb and rt_mutex wait
+	 * lists consistent.
 	 *
 	 * In particular; it is important that futex_unlock_pi() can not
 	 * observe this inconsistency.
···
 		 * there is no point where we hold neither; and therefore
 		 * wake_futex_pi() must observe a state consistent with what we
 		 * observed.
+		 *
+		 * In particular; this forces __rt_mutex_start_proxy() to
+		 * complete such that we're guaranteed to observe the
+		 * rt_waiter. Also see the WARN in wake_futex_pi().
 		 */
 		raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
 		spin_unlock(&hb->lock);

kernel/locking/rtmutex.c

···
 	rt_mutex_set_owner(lock, NULL);
 }
 
+/**
+ * __rt_mutex_start_proxy_lock() - Start lock acquisition for another task
+ * @lock:		the rt_mutex to take
+ * @waiter:		the pre-initialized rt_mutex_waiter
+ * @task:		the task to prepare
+ *
+ * Starts the rt_mutex acquire; it enqueues the @waiter and does deadlock
+ * detection. It does not wait, see rt_mutex_wait_proxy_lock() for that.
+ *
+ * NOTE: does _NOT_ remove the @waiter on failure; must either call
+ * rt_mutex_wait_proxy_lock() or rt_mutex_cleanup_proxy_lock() after this.
+ *
+ * Returns:
+ *  0 - task blocked on lock
+ *  1 - acquired the lock for task, caller should wake it up
+ * <0 - error
+ *
+ * Special API call for PI-futex support.
+ */
 int __rt_mutex_start_proxy_lock(struct rt_mutex *lock,
 			      struct rt_mutex_waiter *waiter,
 			      struct task_struct *task)
 {
 	int ret;
+
+	lockdep_assert_held(&lock->wait_lock);
 
 	if (try_to_take_rt_mutex(lock, task, NULL))
 		return 1;
···
 		ret = 0;
 	}
 
-	if (unlikely(ret))
-		remove_waiter(lock, waiter);
-
 	debug_rt_mutex_print_deadlock(waiter);
 
 	return ret;
···
  * @waiter:		the pre-initialized rt_mutex_waiter
  * @task:		the task to prepare
  *
+ * Starts the rt_mutex acquire; it enqueues the @waiter and does deadlock
+ * detection. It does not wait, see rt_mutex_wait_proxy_lock() for that.
+ *
+ * NOTE: unlike __rt_mutex_start_proxy_lock this _DOES_ remove the @waiter
+ * on failure.
+ *
  * Returns:
  *  0 - task blocked on lock
  *  1 - acquired the lock for task, caller should wake it up
  * <0 - error
  *
- * Special API call for FUTEX_REQUEUE_PI support.
+ * Special API call for PI-futex support.
  */
 int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
 			      struct rt_mutex_waiter *waiter,
···
 
 	raw_spin_lock_irq(&lock->wait_lock);
 	ret = __rt_mutex_start_proxy_lock(lock, waiter, task);
+	if (unlikely(ret))
+		remove_waiter(lock, waiter);
 	raw_spin_unlock_irq(&lock->wait_lock);
 
 	return ret;
···
  * @lock:		the rt_mutex we were woken on
  * @waiter:		the pre-initialized rt_mutex_waiter
  *
- * Attempt to clean up after a failed rt_mutex_wait_proxy_lock().
+ * Attempt to clean up after a failed __rt_mutex_start_proxy_lock() or
+ * rt_mutex_wait_proxy_lock().
  *
  * Unless we acquired the lock; we're still enqueued on the wait-list and can
  * in fact still be granted ownership until we're removed. Therefore we can

kernel/relay.c

···
 	dentry = chan->cb->create_buf_file(tmpname, chan->parent,
 					   S_IRUSR, buf,
 					   &chan->is_global);
+	if (IS_ERR(dentry))
+		dentry = NULL;
 
 	kfree(tmpname);
 
···
 		dentry = chan->cb->create_buf_file(NULL, NULL,
 						   S_IRUSR, buf,
 						   &chan->is_global);
-		if (WARN_ON(dentry))
+		if (IS_ERR_OR_NULL(dentry))
 			goto free_buf;
 	}
 

kernel/sched/fair.c

···
 
 #ifdef CONFIG_SCHED_SMT
 DEFINE_STATIC_KEY_FALSE(sched_smt_present);
+EXPORT_SYMBOL_GPL(sched_smt_present);
 
 static inline void set_idle_cores(int cpu, int val)
 {

kernel/sched/psi.c

···
  * sampling of the aggregate task states would be.
  */
 
+#include "../workqueue_internal.h"
 #include <linux/sched/loadavg.h>
 #include <linux/seq_file.h>
 #include <linux/proc_fs.h>
···
 			groupc->tasks[t]++;
 
 	write_seqcount_end(&groupc->seq);
-
-	if (!delayed_work_pending(&group->clock_work))
-		schedule_delayed_work(&group->clock_work, PSI_FREQ);
 }
 
 static struct psi_group *iterate_groups(struct task_struct *task, void **iter)
···
 {
 	int cpu = task_cpu(task);
 	struct psi_group *group;
+	bool wake_clock = true;
 	void *iter = NULL;
 
 	if (!task->pid)
···
 	task->psi_flags &= ~clear;
 	task->psi_flags |= set;
 
-	while ((group = iterate_groups(task, &iter)))
+	/*
+	 * Periodic aggregation shuts off if there is a period of no
+	 * task changes, so we wake it back up if necessary. However,
+	 * don't do this if the task change is the aggregation worker
+	 * itself going to sleep, or we'll ping-pong forever.
+	 */
+	if (unlikely((clear & TSK_RUNNING) &&
+		     (task->flags & PF_WQ_WORKER) &&
+		     wq_worker_last_func(task) == psi_update_work))
+		wake_clock = false;
+
+	while ((group = iterate_groups(task, &iter))) {
 		psi_group_change(group, cpu, clear, set);
+		if (wake_clock && !delayed_work_pending(&group->clock_work))
+			schedule_delayed_work(&group->clock_work, PSI_FREQ);
+	}
 }
 
 void psi_memstall_tick(struct task_struct *task, int cpu)

kernel/signal.c

···
 }
 EXPORT_SYMBOL_GPL(dequeue_signal);
 
+static int dequeue_synchronous_signal(kernel_siginfo_t *info)
+{
+	struct task_struct *tsk = current;
+	struct sigpending *pending = &tsk->pending;
+	struct sigqueue *q, *sync = NULL;
+
+	/*
+	 * Might a synchronous signal be in the queue?
+	 */
+	if (!((pending->signal.sig[0] & ~tsk->blocked.sig[0]) & SYNCHRONOUS_MASK))
+		return 0;
+
+	/*
+	 * Return the first synchronous signal in the queue.
+	 */
+	list_for_each_entry(q, &pending->list, list) {
+		/* Synchronous signals have a postive si_code */
+		if ((q->info.si_code > SI_USER) &&
+		    (sigmask(q->info.si_signo) & SYNCHRONOUS_MASK)) {
+			sync = q;
+			goto next;
+		}
+	}
+	return 0;
+next:
+	/*
+	 * Check if there is another siginfo for the same signal.
+	 */
+	list_for_each_entry_continue(q, &pending->list, list) {
+		if (q->info.si_signo == sync->info.si_signo)
+			goto still_pending;
+	}
+
+	sigdelset(&pending->signal, sync->info.si_signo);
+	recalc_sigpending();
+still_pending:
+	list_del_init(&sync->list);
+	copy_siginfo(info, &sync->info);
+	__sigqueue_free(sync);
+	return info->si_signo;
+}
+
 /*
  * Tell a process that it has a new active signal..
  *
···
 
 	result = TRACE_SIGNAL_DELIVERED;
 	/*
-	 * Skip useless siginfo allocation for SIGKILL SIGSTOP,
-	 * and kernel threads.
+	 * Skip useless siginfo allocation for SIGKILL and kernel threads.
 	 */
-	if (sig_kernel_only(sig) || (t->flags & PF_KTHREAD))
+	if ((sig == SIGKILL) || (t->flags & PF_KTHREAD))
 		goto out_set;
 
 	/*
···
 		goto relock;
 	}
 
+	/* Has this task already been marked for death? */
+	ksig->info.si_signo = signr = SIGKILL;
+	if (signal_group_exit(signal))
+		goto fatal;
+
 	for (;;) {
 		struct k_sigaction *ka;
 
···
 			goto relock;
 		}
 
-		signr = dequeue_signal(current, &current->blocked, &ksig->info);
+		/*
+		 * Signals generated by the execution of an instruction
+		 * need to be delivered before any other pending signals
+		 * so that the instruction pointer in the signal stack
+		 * frame points to the faulting instruction.
+		 */
+		signr = dequeue_synchronous_signal(&ksig->info);
+		if (!signr)
+			signr = dequeue_signal(current, &current->blocked, &ksig->info);
 
 		if (!signr)
 			break; /* will return 0 */
···
 			continue;
 		}
 
+	fatal:
 		spin_unlock_irq(&sighand->siglock);
 
 		/*

kernel/smp.c

···
 		num_nodes, (num_nodes > 1 ? "s" : ""),
 		num_cpus,  (num_cpus  > 1 ? "s" : ""));
 
-	/* Final decision about SMT support */
-	cpu_smt_check_topology();
 	/* Any cleanup work */
 	smp_cpus_done(setup_max_cpus);
 }

kernel/trace/bpf_trace.c

···
 
 int bpf_probe_register(struct bpf_raw_event_map *btp, struct bpf_prog *prog)
 {
-	int err;
-
-	mutex_lock(&bpf_event_mutex);
-	err = __bpf_probe_register(btp, prog);
-	mutex_unlock(&bpf_event_mutex);
-	return err;
+	return __bpf_probe_register(btp, prog);
 }
 
 int bpf_probe_unregister(struct bpf_raw_event_map *btp, struct bpf_prog *prog)
 {
-	int err;
-
-	mutex_lock(&bpf_event_mutex);
-	err = tracepoint_probe_unregister(btp->tp, (void *)btp->bpf_func, prog);
-	mutex_unlock(&bpf_event_mutex);
-	return err;
+	return tracepoint_probe_unregister(btp->tp, (void *)btp->bpf_func, prog);
 }
 
 int bpf_get_perf_event_info(const struct perf_event *event, u32 *prog_id,

kernel/trace/trace_uprobe.c

···
  * Copyright (C) IBM Corporation, 2010-2012
  * Author:	Srikar Dronamraju <[e-mail]>
  */
-#define pr_fmt(fmt)	"trace_kprobe: " fmt
+#define pr_fmt(fmt)	"trace_uprobe: " fmt
 
 #include <linux/ctype.h>
 #include <linux/module.h>
···
 	if (ret >= 0) {
 		if (ret == maxlen)
 			dst[ret - 1] = '\0';
+		else
+			/*
+			 * Include the terminating null byte. In this case it
+			 * was copied by strncpy_from_user but not accounted
+			 * for in ret.
+			 */
+			ret++;
 		*(u32 *)dest = make_data_loc(ret, (void *)dst - base);
 	}
 

kernel/workqueue.c

···
 }
 
 /**
+ * wq_worker_last_func - retrieve worker's last work function
+ *
+ * Determine the last function a worker executed. This is called from
+ * the scheduler to get a worker's last known identity.
+ *
+ * CONTEXT:
+ * spin_lock_irq(rq->lock)
+ *
+ * Return:
+ * The last work function %current executed as a worker, NULL if it
+ * hasn't executed any work yet.
+ */
+work_func_t wq_worker_last_func(struct task_struct *task)
+{
+	struct worker *worker = kthread_data(task);
+
+	return worker->last_func;
+}
+
+/**
  * worker_set_flags - set worker flags and adjust nr_running accordingly
  * @worker: self
  * @flags: flags to set
···
 	/* clear cpu intensive status */
 	if (unlikely(cpu_intensive))
 		worker_clr_flags(worker, WORKER_CPU_INTENSIVE);
+
+	/* tag the worker for identification in schedule() */
+	worker->last_func = worker->current_func;
 
 	/* we're done with it, release */
 	hash_del(&worker->hentry);

kernel/workqueue_internal.h

···
 
 	/* used only by rescuers to point to the target workqueue */
 	struct workqueue_struct	*rescue_wq;	/* I: the workqueue to rescue */
+
+	/* used by the scheduler to determine a worker's last known identity */
+	work_func_t		last_func;
 };
 
 /**
···
 
 /*
  * Scheduler hooks for concurrency managed workqueue.  Only to be used from
- * sched/core.c and workqueue.c.
+ * sched/ and workqueue.c.
  */
 void wq_worker_waking_up(struct task_struct *task, int cpu);
 struct task_struct *wq_worker_sleeping(struct task_struct *task);
+work_func_t wq_worker_last_func(struct task_struct *task);
 
 #endif /* _KERNEL_WORKQUEUE_INTERNAL_H */

lib/test_kmod.c

···
 	config->test_driver = NULL;
 
 	kfree_const(config->test_fs);
-	config->test_driver = NULL;
+	config->test_fs = NULL;
 }
 
 static void kmod_config_free(struct kmod_test_device *test_dev)

lib/test_rhashtable.c

···
 static int __init test_insert_dup(struct test_obj_rhl *rhl_test_objects,
 				  int cnt, bool slow)
 {
-	struct rhltable rhlt;
+	struct rhltable *rhlt;
 	unsigned int i, ret;
 	const char *key;
 	int err = 0;
 
-	err = rhltable_init(&rhlt, &test_rht_params_dup);
-	if (WARN_ON(err))
+	rhlt = kmalloc(sizeof(*rhlt), GFP_KERNEL);
+	if (WARN_ON(!rhlt))
+		return -EINVAL;
+
+	err = rhltable_init(rhlt, &test_rht_params_dup);
+	if (WARN_ON(err)) {
+		kfree(rhlt);
 		return err;
+	}
 
 	for (i = 0; i < cnt; i++) {
 		rhl_test_objects[i].value.tid = i;
-		key = rht_obj(&rhlt.ht, &rhl_test_objects[i].list_node.rhead);
+		key = rht_obj(&rhlt->ht, &rhl_test_objects[i].list_node.rhead);
 		key += test_rht_params_dup.key_offset;
 
 		if (slow) {
-			err = PTR_ERR(rhashtable_insert_slow(&rhlt.ht, key,
+			err = PTR_ERR(rhashtable_insert_slow(&rhlt->ht, key,
 							     &rhl_test_objects[i].list_node.rhead));
 			if (err == -EAGAIN)
 				err = 0;
 		} else
-			err = rhltable_insert(&rhlt,
+			err = rhltable_insert(rhlt,
 					      &rhl_test_objects[i].list_node,
 					      test_rht_params_dup);
 		if (WARN(err, "error %d on element %d/%d (%s)\n", err, i, cnt, slow? "slow" : "fast"))
 			goto skip_print;
 	}
 
-	ret = print_ht(&rhlt);
+	ret = print_ht(rhlt);
 	WARN(ret != cnt, "missing rhltable elements (%d != %d, %s)\n", ret, cnt, slow? "slow" : "fast");
 
 skip_print:
-	rhltable_destroy(&rhlt);
+	rhltable_destroy(rhlt);
+	kfree(rhlt);
 
 	return 0;
 }

mm/hugetlb.c

···
 				break;
 			}
 			if (ret & VM_FAULT_RETRY) {
-				if (nonblocking)
+				if (nonblocking &&
+				    !(fault_flags & FAULT_FLAG_RETRY_NOWAIT))
 					*nonblocking = 0;
 				*nr_pages = 0;
 				/*

mm/kasan/Makefile

···
 UBSAN_SANITIZE_tags.o := n
 KCOV_INSTRUMENT := n
 
+CFLAGS_REMOVE_common.o = -pg
 CFLAGS_REMOVE_generic.o = -pg
 # Function splitter causes unnecessary splits in __asan_load1/__asan_store1
 # see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63533

mm/memory-failure.c

···
 			if (fail || tk->addr_valid == 0) {
 				pr_err("Memory failure: %#lx: forcibly killing %s:%d because of failure to unmap corrupted page\n",
 				       pfn, tk->tsk->comm, tk->tsk->pid);
-				force_sig(SIGKILL, tk->tsk);
+				do_send_sig_info(SIGKILL, SEND_SIG_PRIV,
+						 tk->tsk, PIDTYPE_PID);
 			}
 
 			/*

mm/memory_hotplug.c

···
 bool is_mem_section_removable(unsigned long start_pfn, unsigned long nr_pages)
 {
 	struct page *page = pfn_to_page(start_pfn);
-	struct page *end_page = page + nr_pages;
+	unsigned long end_pfn = min(start_pfn + nr_pages, zone_end_pfn(page_zone(page)));
+	struct page *end_page = pfn_to_page(end_pfn);
 
 	/* Check the starting page of each pageblock within the range */
 	for (; page < end_page; page = next_active_pageblock(page)) {
···
 				i++;
 			if (i == MAX_ORDER_NR_PAGES || pfn + i >= end_pfn)
 				continue;
+			/* Check if we got outside of the zone */
+			if (zone && !zone_spans_pfn(zone, pfn + i))
+				return 0;
 			page = pfn_to_page(pfn + i);
 			if (zone && page_zone(page) != zone)
 				return 0;
···
 static unsigned long scan_movable_pages(unsigned long start, unsigned long end)
 {
 	unsigned long pfn;
-	struct page *page;
+
 	for (pfn = start; pfn < end; pfn++) {
-		if (pfn_valid(pfn)) {
-			page = pfn_to_page(pfn);
-			if (PageLRU(page))
-				return pfn;
-			if (__PageMovable(page))
-				return pfn;
-			if (PageHuge(page)) {
-				if (hugepage_migration_supported(page_hstate(page)) &&
-				    page_huge_active(page))
-					return pfn;
-				else
-					pfn = round_up(pfn + 1,
-						1 << compound_order(page)) - 1;
-			}
-		}
+		struct page *page, *head;
+		unsigned long skip;
+
+		if (!pfn_valid(pfn))
+			continue;
+		page = pfn_to_page(pfn);
+		if (PageLRU(page))
+			return pfn;
+		if (__PageMovable(page))
+			return pfn;
+
+		if (!PageHuge(page))
+			continue;
+		head = compound_head(page);
+		if (hugepage_migration_supported(page_hstate(head)) &&
+		    page_huge_active(head))
+			return pfn;
+		skip = (1 << compound_order(head)) - (page - head);
+		pfn += skip - 1;
 	}
 	return 0;
 }
···
 {
 	unsigned long pfn;
 	struct page *page;
-	int not_managed = 0;
 	int ret = 0;
 	LIST_HEAD(source);
 
···
 		else
 			ret = isolate_movable_page(page, ISOLATE_UNEVICTABLE);
 		if (!ret) { /* Success */
-			put_page(page);
 			list_add_tail(&page->lru, &source);
 			if (!__PageMovable(page))
 				inc_node_page_state(page, NR_ISOLATED_ANON +
···
 		} else {
 			pr_warn("failed to isolate pfn %lx\n", pfn);
 			dump_page(page, "isolation failed");
-			put_page(page);
-			/* Because we don't have big zone->lock. we should
-			   check this again here. */
-			if (page_count(page)) {
-				not_managed++;
-				ret = -EBUSY;
-				break;
-			}
 		}
+		put_page(page);
 	}
 	if (!list_empty(&source)) {
-		if (not_managed) {
-			putback_movable_pages(&source);
-			goto out;
-		}
-
 		/* Allocate a new page from the nearest neighbor node */
 		ret = migrate_pages(&source, new_node_page, NULL, 0,
 					MIGRATE_SYNC, MR_MEMORY_HOTPLUG);
···
 			putback_movable_pages(&source);
 		}
 	}
-out:
+
 	return ret;
 }
 
···
 	   we assume this for now. .*/
 	if (!test_pages_in_a_zone(start_pfn, end_pfn, &valid_start,
 				  &valid_end)) {
-		mem_hotplug_done();
 		ret = -EINVAL;
 		reason = "multizone range";
 		goto failed_removal;
···
 				       MIGRATE_MOVABLE,
 				       SKIP_HWPOISON | REPORT_FAILURE);
 	if (ret) {
-		mem_hotplug_done();
 		reason = "failure to isolate range";
 		goto failed_removal;
 	}

mm/migrate.c

···
 	/* Simple case, sync compaction */
 	if (mode != MIGRATE_ASYNC) {
 		do {
-			get_bh(bh);
 			lock_buffer(bh);
 			bh = bh->b_this_page;
 
···
 
 	/* async case, we cannot block on lock_buffer so use trylock_buffer */
 	do {
-		get_bh(bh);
 		if (!trylock_buffer(bh)) {
 			/*
 			 * We failed to lock the buffer and cannot stall in
 			 * async migration. Release the taken locks
 			 */
 			struct buffer_head *failed_bh = bh;
-			put_bh(failed_bh);
 			bh = head;
 			while (bh != failed_bh) {
 				unlock_buffer(bh);
-				put_bh(bh);
 				bh = bh->b_this_page;
 			}
 			return false;
···
 	bh = head;
 	do {
 		unlock_buffer(bh);
-		put_bh(bh);
 		bh = bh->b_this_page;
 
 	} while (bh != head);
···
 	 * If migration is successful, decrease refcount of the newpage
 	 * which will not free the page because new page owner increased
 	 * refcounter. As well, if it is LRU page, add the page to LRU
-	 * list in here.
+	 * list in here. Use the old state of the isolated source page to
+	 * determine if we migrated a LRU page. newpage was already unlocked
+	 * and possibly modified by its owner - don't rely on the page
+	 * state.
 	 */
 	if (rc == MIGRATEPAGE_SUCCESS) {
-		if (unlikely(__PageMovable(newpage)))
+		if (unlikely(!is_lru))
 			put_page(newpage);
 		else
 			putback_lru_page(newpage);

mm/oom_kill.c

···
 
 static void wake_oom_reaper(struct task_struct *tsk)
 {
-	/* tsk is already queued? */
-	if (tsk == oom_reaper_list || tsk->oom_reaper_list)
+	/* mm is already queued? */
+	if (test_and_set_bit(MMF_OOM_REAP_QUEUED, &tsk->signal->oom_mm->flags))
 		return;
 
 	get_task_struct(tsk);
···
 	 * still freeing memory.
 	 */
 	read_lock(&tasklist_lock);
+
+	/*
+	 * The task 'p' might have already exited before reaching here. The
+	 * put_task_struct() will free task_struct 'p' while the loop still try
+	 * to access the field of 'p', so, get an extra reference.
+	 */
+	get_task_struct(p);
 	for_each_thread(p, t) {
 		list_for_each_entry(child, &t->children, sibling) {
 			unsigned int child_points;
···
 			}
 		}
 	}
+	put_task_struct(p);
 	read_unlock(&tasklist_lock);
 
 	/*

mm/page_alloc.c

···
 			cond_resched();
 		}
 	}
-#ifdef CONFIG_SPARSEMEM
-	/*
-	 * If the zone does not span the rest of the section then
-	 * we should at least initialize those pages. Otherwise we
-	 * could blow up on a poisoned page in some paths which depend
-	 * on full sections being initialized (e.g. memory hotplug).
-	 */
-	while (end_pfn % PAGES_PER_SECTION) {
-		__init_single_page(pfn_to_page(end_pfn), end_pfn, zone, nid);
-		end_pfn++;
-	}
-#endif
 }
 
 #ifdef CONFIG_ZONE_DEVICE

net/batman-adv/bat_v_elp.c

···
 
 		ret = cfg80211_get_station(real_netdev, neigh->addr, &sinfo);
 
+		/* free the TID stats immediately */
+		cfg80211_sinfo_release_content(&sinfo);
+
 		dev_put(real_netdev);
 		if (ret == -ENOENT) {
 			/* Node is not associated anymore! It would be

net/batman-adv/hard-interface.c

···
 #include "main.h"
 
 #include <linux/atomic.h>
-#include <linux/bug.h>
 #include <linux/byteorder/generic.h>
 #include <linux/errno.h>
 #include <linux/gfp.h>
···
 	parent_dev = __dev_get_by_index((struct net *)parent_net,
 					dev_get_iflink(net_dev));
 	/* if we got a NULL parent_dev there is something broken.. */
-	if (WARN(!parent_dev, "Cannot find parent device"))
+	if (!parent_dev) {
+		pr_err("Cannot find parent device\n");
 		return false;
+	}
 
 	if (batadv_mutual_parents(net_dev, net, parent_dev, parent_net))
 		return false;

net/batman-adv/soft-interface.c

···
 
 	netif_trans_update(soft_iface);
 	vid = batadv_get_vid(skb, 0);
+
+	skb_reset_mac_header(skb);
 	ethhdr = eth_hdr(skb);
 
 	switch (ntohs(ethhdr->h_proto)) {

net/bridge/netfilter/ebtables.c

···
 
 	xt_compat_lock(NFPROTO_BRIDGE);
 
-	ret = xt_compat_init_offsets(NFPROTO_BRIDGE, tmp.nentries);
-	if (ret < 0)
-		goto out_unlock;
+	if (tmp.nentries) {
+		ret = xt_compat_init_offsets(NFPROTO_BRIDGE, tmp.nentries);
+		if (ret < 0)
+			goto out_unlock;
+	}
+
 	ret = compat_copy_entries(entries_tmp, tmp.entries_size, &state);
 	if (ret < 0)
 		goto out_unlock;

net/core/dev.c

···
 	set_bit(__LINK_STATE_PRESENT, &dev->state);
 	set_bit(__LINK_STATE_START, &dev->state);
 
+	/* napi_busy_loop stats accounting wants this */
+	dev_net_set(dev, &init_net);
+
 	/* Note : We dont allocate pcpu_refcnt for dummy devices,
 	 * because users of this 'device' dont need to change
 	 * its refcount.

net/core/filter.c

···
 		/* Only some socketops are supported */
 		switch (optname) {
 		case SO_RCVBUF:
+			val = min_t(u32, val, sysctl_rmem_max);
 			sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
 			sk->sk_rcvbuf = max_t(int, val * 2, SOCK_MIN_RCVBUF);
 			break;
 		case SO_SNDBUF:
+			val = min_t(u32, val, sysctl_wmem_max);
 			sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
 			sk->sk_sndbuf = max_t(int, val * 2, SOCK_MIN_SNDBUF);
 			break;

net/core/skmsg.c

···
 	struct sk_psock *psock = container_of(gc, struct sk_psock, gc);
 
 	/* No sk_callback_lock since already detached. */
-	if (psock->parser.enabled)
-		strp_done(&psock->parser.strp);
+	strp_done(&psock->parser.strp);
 
 	cancel_work_sync(&psock->work);
 

net/dccp/ccid.h

···
 static inline int ccid_hc_tx_parse_options(struct ccid *ccid, struct sock *sk,
 					   u8 pkt, u8 opt, u8 *val, u8 len)
 {
-	if (ccid->ccid_ops->ccid_hc_tx_parse_options == NULL)
+	if (!ccid || !ccid->ccid_ops->ccid_hc_tx_parse_options)
 		return 0;
 	return ccid->ccid_ops->ccid_hc_tx_parse_options(sk, pkt, opt, val, len);
 }
···
 static inline int ccid_hc_rx_parse_options(struct ccid *ccid, struct sock *sk,
 					   u8 pkt, u8 opt, u8 *val, u8 len)
 {
-	if (ccid->ccid_ops->ccid_hc_rx_parse_options == NULL)
+	if (!ccid || !ccid->ccid_ops->ccid_hc_rx_parse_options)
 		return 0;
 	return ccid->ccid_ops->ccid_hc_rx_parse_options(sk, pkt, opt, val, len);
 }

net/decnet/dn_dev.c

···
 #include <net/dn_neigh.h>
 #include <net/dn_fib.h>
 
-#define DN_IFREQ_SIZE (sizeof(struct ifreq) - sizeof(struct sockaddr) + sizeof(struct sockaddr_dn))
+#define DN_IFREQ_SIZE (offsetof(struct ifreq, ifr_ifru) + sizeof(struct sockaddr_dn))
 
 static char dn_rt_all_end_mcast[ETH_ALEN] = {0xAB,0x00,0x00,0x04,0x00,0x00};
 static char dn_rt_all_rt_mcast[ETH_ALEN]  = {0xAB,0x00,0x00,0x03,0x00,0x00};

net/dsa/master.c

···
 	rtnl_unlock();
 }
 
+static struct lock_class_key dsa_master_addr_list_lock_key;
+
 int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp)
 {
 	int ret;
···
 	wmb();
 
 	dev->dsa_ptr = cpu_dp;
+	lockdep_set_class(&dev->addr_list_lock,
+			  &dsa_master_addr_list_lock_key);
 
 	ret = dsa_master_ethtool_setup(dev);
 	if (ret)

net/dsa/slave.c

···
 static void dsa_slave_change_rx_flags(struct net_device *dev, int change)
 {
 	struct net_device *master = dsa_slave_to_master(dev);
-
-	if (change & IFF_ALLMULTI)
-		dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1);
-	if (change & IFF_PROMISC)
-		dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1);
+	if (dev->flags & IFF_UP) {
+		if (change & IFF_ALLMULTI)
+			dev_set_allmulti(master,
+					 dev->flags & IFF_ALLMULTI ? 1 : -1);
+		if (change & IFF_PROMISC)
+			dev_set_promiscuity(master,
+					    dev->flags & IFF_PROMISC ? 1 : -1);
+	}
 }
 
 static void dsa_slave_set_rx_mode(struct net_device *dev)
···
 	int ret;
 
 	/* Port's PHY and MAC both need to be EEE capable */
-	if (!dev->phydev && !dp->pl)
+	if (!dev->phydev || !dp->pl)
 		return -ENODEV;
 
 	if (!ds->ops->set_mac_eee)
···
 	int ret;
 
 	/* Port's PHY and MAC both need to be EEE capable */
-	if (!dev->phydev && !dp->pl)
+	if (!dev->phydev || !dp->pl)
 		return -ENODEV;
 
 	if (!ds->ops->get_mac_eee)

net/ipv4/ip_gre.c

···
 {
 	struct ip_tunnel *t = netdev_priv(dev);
 	struct ip_tunnel_parm *p = &t->parms;
+	__be16 o_flags = p->o_flags;
+
+	if ((t->erspan_ver == 1 || t->erspan_ver == 2) &&
+	    !t->collect_md)
+		o_flags |= TUNNEL_KEY;
 
 	if (nla_put_u32(skb, IFLA_GRE_LINK, p->link) ||
 	    nla_put_be16(skb, IFLA_GRE_IFLAGS,
 			 gre_tnl_flags_to_gre_flags(p->i_flags)) ||
 	    nla_put_be16(skb, IFLA_GRE_OFLAGS,
-			 gre_tnl_flags_to_gre_flags(p->o_flags)) ||
+			 gre_tnl_flags_to_gre_flags(o_flags)) ||
 	    nla_put_be32(skb, IFLA_GRE_IKEY, p->i_key) ||
 	    nla_put_be32(skb, IFLA_GRE_OKEY, p->o_key) ||
 	    nla_put_in_addr(skb, IFLA_GRE_LOCAL, p->iph.saddr) ||

net/ipv4/ip_vti.c

···
 	return 0;
 }
 
+static int vti_input_ipip(struct sk_buff *skb, int nexthdr, __be32 spi,
+		     int encap_type)
+{
+	struct ip_tunnel *tunnel;
+	const struct iphdr *iph = ip_hdr(skb);
+	struct net *net = dev_net(skb->dev);
+	struct ip_tunnel_net *itn = net_generic(net, vti_net_id);
+
+	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
+				  iph->saddr, iph->daddr, 0);
+	if (tunnel) {
+		if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
+			goto drop;
+
+		XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip4 = tunnel;
+
+		skb->dev = tunnel->dev;
+
+		return xfrm_input(skb, nexthdr, spi, encap_type);
+	}
+
+	return -EINVAL;
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
 static int vti_rcv(struct sk_buff *skb)
 {
 	XFRM_SPI_SKB_CB(skb)->family = AF_INET;
 	XFRM_SPI_SKB_CB(skb)->daddroff = offsetof(struct iphdr, daddr);
 
 	return vti_input(skb, ip_hdr(skb)->protocol, 0, 0);
+}
+
+static int vti_rcv_ipip(struct sk_buff *skb)
+{
+	XFRM_SPI_SKB_CB(skb)->family = AF_INET;
+	XFRM_SPI_SKB_CB(skb)->daddroff = offsetof(struct iphdr, daddr);
+
+	return vti_input_ipip(skb, ip_hdr(skb)->protocol, ip_hdr(skb)->saddr, 0);
 }
 
 static int vti_rcv_cb(struct sk_buff *skb, int err)
···
 	.priority	=	100,
 };
 
+static struct xfrm_tunnel ipip_handler __read_mostly = {
+	.handler	=	vti_rcv_ipip,
+	.err_handler	=	vti4_err,
+	.priority	=	0,
+};
+
 static int __net_init vti_init_net(struct net *net)
 {
 	int err;
···
 	if (err < 0)
 		goto xfrm_proto_comp_failed;
 
+	msg = "ipip tunnel";
+	err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
+	if (err < 0) {
+		pr_info("%s: cant't register tunnel\n",__func__);
+		goto xfrm_tunnel_failed;
+	}
+
 	msg = "netlink interface";
 	err = rtnl_link_register(&vti_link_ops);
 	if (err < 0)
···
 
 rtnl_link_failed:
 	xfrm4_protocol_deregister(&vti_ipcomp4_protocol, IPPROTO_COMP);
+xfrm_tunnel_failed:
+	xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
 xfrm_proto_comp_failed:
 	xfrm4_protocol_deregister(&vti_ah4_protocol, IPPROTO_AH);
 xfrm_proto_ah_failed:

net/ipv4/netfilter/ipt_CLUSTERIP.c

···
 
 static void clusterip_net_exit(struct net *net)
 {
+#ifdef CONFIG_PROC_FS
 	struct clusterip_net *cn = clusterip_pernet(net);
 
-#ifdef CONFIG_PROC_FS
 	mutex_lock(&cn->mutex);
 	proc_remove(cn->procdir);
 	cn->procdir = NULL;

net/ipv6/ip6_gre.c

···
 {
 	struct ip6_tnl *t = netdev_priv(dev);
 	struct __ip6_tnl_parm *p = &t->parms;
+	__be16 o_flags = p->o_flags;
+
+	if ((p->erspan_ver == 1 || p->erspan_ver == 2) &&
+	    !p->collect_md)
+		o_flags |= TUNNEL_KEY;
 
 	if (nla_put_u32(skb, IFLA_GRE_LINK, p->link) ||
 	    nla_put_be16(skb, IFLA_GRE_IFLAGS,
 			 gre_tnl_flags_to_gre_flags(p->i_flags)) ||
 	    nla_put_be16(skb, IFLA_GRE_OFLAGS,
-			 gre_tnl_flags_to_gre_flags(p->o_flags)) ||
+			 gre_tnl_flags_to_gre_flags(o_flags)) ||
 	    nla_put_be32(skb, IFLA_GRE_IKEY, p->i_key) ||
 	    nla_put_be32(skb, IFLA_GRE_OKEY, p->o_key) ||
 	    nla_put_in6_addr(skb, IFLA_GRE_LOCAL, &p->laddr) ||

net/ipv6/ip6mr.c

···
 			continue;
 		rhltable_remove(&mrt->mfc_hash, &c->mnode, ip6mr_rht_params);
 		list_del_rcu(&c->list);
+		call_ip6mr_mfc_entry_notifiers(read_pnet(&mrt->net),
+					       FIB_EVENT_ENTRY_DEL,
+					       (struct mfc6_cache *)c, mrt->id);
 		mr6_netlink_event(mrt, (struct mfc6_cache *)c, RTM_DELROUTE);
 		mr_cache_put(c);
 	}
···
 		spin_lock_bh(&mfc_unres_lock);
 		list_for_each_entry_safe(c, tmp, &mrt->mfc_unres_queue, list) {
 			list_del(&c->list);
-			call_ip6mr_mfc_entry_notifiers(read_pnet(&mrt->net),
-						       FIB_EVENT_ENTRY_DEL,
-						       (struct mfc6_cache *)c,
-						       mrt->id);
 			mr6_netlink_event(mrt, (struct mfc6_cache *)c,
 					  RTM_DELROUTE);
 			ip6mr_destroy_unres(mrt, (struct mfc6_cache *)c);

net/ipv6/netfilter.c

···
 	struct sock *sk = sk_to_full_sk(skb->sk);
 	unsigned int hh_len;
 	struct dst_entry *dst;
+	int strict = (ipv6_addr_type(&iph->daddr) &
+		      (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL));
 	struct flowi6 fl6 = {
 		.flowi6_oif = sk && sk->sk_bound_dev_if ? sk->sk_bound_dev_if :
-			rt6_need_strict(&iph->daddr) ? skb_dst(skb)->dev->ifindex : 0,
+			strict ? skb_dst(skb)->dev->ifindex : 0,
 		.flowi6_mark = skb->mark,
 		.flowi6_uid = sock_net_uid(net, sk),
 		.daddr = iph->daddr,

net/ipv6/seg6_iptunnel.c

···
 	} else {
 		ip6_flow_hdr(hdr, 0, flowlabel);
 		hdr->hop_limit = ip6_dst_hoplimit(skb_dst(skb));
+
+		memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
 	}
 
 	hdr->nexthdr = NEXTHDR_ROUTING;

net/ipv6/sit.c

···
 	}
 
 	err = 0;
-	if (!ip6_err_gen_icmpv6_unreach(skb, iph->ihl * 4, type, data_len))
+	if (__in6_dev_get(skb->dev) &&
+	    !ip6_err_gen_icmpv6_unreach(skb, iph->ihl * 4, type, data_len))
 		goto out;
 
 	if (t->parms.iph.daddr == 0)

net/l2tp/l2tp_core.c

···
 #define L2TP_SLFLAG_S	   0x40000000
 #define L2TP_SL_SEQ_MASK   0x00ffffff
 
-#define L2TP_HDR_SIZE_SEQ		10
-#define L2TP_HDR_SIZE_NOSEQ		6
+#define L2TP_HDR_SIZE_MAX		14
 
 /* Default trace flags */
 #define L2TP_DEFAULT_DEBUG_FLAGS	0
···
 	__skb_pull(skb, sizeof(struct udphdr));
 
 	/* Short packet? */
-	if (!pskb_may_pull(skb, L2TP_HDR_SIZE_SEQ)) {
+	if (!pskb_may_pull(skb, L2TP_HDR_SIZE_MAX)) {
 		l2tp_info(tunnel, L2TP_MSG_DATA,
 			  "%s: recv short packet (len=%d)\n",
 			  tunnel->name, skb->len);
···
 			  tunnel->name, tunnel_id, session_id);
 		goto error;
 	}
+
+	if (tunnel->version == L2TP_HDR_VER_3 &&
+	    l2tp_v3_ensure_opt_in_linear(session, skb, &ptr, &optr))
+		goto error;
 
 	l2tp_recv_common(session, skb, ptr, optr, hdrflags, length);
 	l2tp_session_dec_refcount(session);

net/l2tp/l2tp_core.h

···
 }
 #endif
 
+static inline int l2tp_v3_ensure_opt_in_linear(struct l2tp_session *session, struct sk_buff *skb,
+					       unsigned char **ptr, unsigned char **optr)
+{
+	int opt_len = session->peer_cookie_len + l2tp_get_l2specific_len(session);
+
+	if (opt_len > 0) {
+		int off = *ptr - *optr;
+
+		if (!pskb_may_pull(skb, off + opt_len))
+			return -1;
+
+		if (skb->data != *optr) {
+			*optr = skb->data;
+			*ptr = skb->data + off;
+		}
+	}
+
+	return 0;
+}
+
 #define l2tp_printk(ptr, type, func, fmt, ...)				\
 do {									\
 	if (((ptr)->debug) & (type))					\

net/l2tp/l2tp_ip.c

···
 		print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length);
 	}
 
+	if (l2tp_v3_ensure_opt_in_linear(session, skb, &ptr, &optr))
+		goto discard_sess;
+
 	l2tp_recv_common(session, skb, ptr, optr, 0, skb->len);
 	l2tp_session_dec_refcount(session);
 

net/l2tp/l2tp_ip6.c

···
 		print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length);
 	}
 
+	if (l2tp_v3_ensure_opt_in_linear(session, skb, &ptr, &optr))
+		goto discard_sess;
+
 	l2tp_recv_common(session, skb, ptr, optr, 0, skb->len);
 	l2tp_session_dec_refcount(session);
 

net/mac80211/tx.c

···
 				int head_need, bool may_encrypt)
 {
 	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_hdr *hdr;
+	bool enc_tailroom;
 	int tail_need = 0;
 
-	if (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt) {
+	hdr = (struct ieee80211_hdr *) skb->data;
+	enc_tailroom = may_encrypt &&
+		       (sdata->crypto_tx_tailroom_needed_cnt ||
+			ieee80211_is_mgmt(hdr->frame_control));
+
+	if (enc_tailroom) {
 		tail_need = IEEE80211_ENCRYPT_TAILROOM;
 		tail_need -= skb_tailroom(skb);
 		tail_need = max_t(int, tail_need, 0);
···
 
 	if (skb_cloned(skb) &&
 	    (!ieee80211_hw_check(&local->hw, SUPPORTS_CLONED_SKBS) ||
-	     !skb_clone_writable(skb, ETH_HLEN) ||
-	     (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt)))
+	     !skb_clone_writable(skb, ETH_HLEN) || enc_tailroom))
 		I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
 	else if (head_need || tail_need)
 		I802_DEBUG_INC(local->tx_expand_skb_head);

net/netfilter/ipvs/ip_vs_ctl.c

···
 		  u->udp_timeout);
 
 #ifdef CONFIG_IP_VS_PROTO_TCP
+	if (u->tcp_timeout < 0 || u->tcp_timeout > (INT_MAX / HZ) ||
+	    u->tcp_fin_timeout < 0 || u->tcp_fin_timeout > (INT_MAX / HZ)) {
+		return -EINVAL;
+	}
+#endif
+
+#ifdef CONFIG_IP_VS_PROTO_UDP
+	if (u->udp_timeout < 0 || u->udp_timeout > (INT_MAX / HZ))
+		return -EINVAL;
+#endif
+
+#ifdef CONFIG_IP_VS_PROTO_TCP
 	if (u->tcp_timeout) {
 		pd = ip_vs_proto_data_get(ipvs, IPPROTO_TCP);
 		pd->timeout_table[IP_VS_TCP_S_ESTABLISHED]

net/netfilter/nf_conntrack_core.c

···
 		}
 
 		if (nf_ct_key_equal(h, tuple, zone, net)) {
+			/* Tuple is taken already, so caller will need to find
+			 * a new source port to use.
+			 *
+			 * Only exception:
+			 * If the *original tuples* are identical, then both
+			 * conntracks refer to the same flow.
+			 * This is a rare situation, it can occur e.g. when
+			 * more than one UDP packet is sent from same socket
+			 * in different threads.
+			 *
+			 * Let nf_ct_resolve_clash() deal with this later.
+			 */
+			if (nf_ct_tuple_equal(&ignored_conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
+					      &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple))
+				continue;
+
 			NF_CT_STAT_INC_ATOMIC(net, found);
 			rcu_read_unlock();
 			return 1;

net/netfilter/nf_tables_api.c

···
 	kfree(trans);
 }
 
+static void nft_set_trans_bind(const struct nft_ctx *ctx, struct nft_set *set)
+{
+	struct net *net = ctx->net;
+	struct nft_trans *trans;
+
+	if (!nft_set_is_anonymous(set))
+		return;
+
+	list_for_each_entry_reverse(trans, &net->nft.commit_list, list) {
+		if (trans->msg_type == NFT_MSG_NEWSET &&
+		    nft_trans_set(trans) == set) {
+			nft_trans_set_bound(trans) = true;
+			break;
+		}
+	}
+}
+
 static int nf_tables_register_hook(struct net *net,
 				   const struct nft_table *table,
 				   struct nft_chain *chain)
···
 	return err;
 }
 
-/* either expr ops provide both activate/deactivate, or neither */
-static bool nft_expr_check_ops(const struct nft_expr_ops *ops)
-{
-	if (!ops)
-		return true;
-
-	if (WARN_ON_ONCE((!ops->activate ^ !ops->deactivate)))
-		return false;
-
-	return true;
-}
-
 static void nft_rule_expr_activate(const struct nft_ctx *ctx,
 				   struct nft_rule *rule)
 {
···
 }
 
 static void nft_rule_expr_deactivate(const struct nft_ctx *ctx,
-				     struct nft_rule *rule)
+				     struct nft_rule *rule,
+				     enum nft_trans_phase phase)
 {
 	struct nft_expr *expr;
 
 	expr = nft_expr_first(rule);
 	while (expr != nft_expr_last(rule) && expr->ops) {
 		if (expr->ops->deactivate)
-			expr->ops->deactivate(ctx, expr);
+			expr->ops->deactivate(ctx, expr, phase);
 
 		expr = nft_expr_next(expr);
 	}
···
 		nft_trans_destroy(trans);
 		return err;
 	}
-	nft_rule_expr_deactivate(ctx, rule);
+	nft_rule_expr_deactivate(ctx, rule, NFT_TRANS_PREPARE);
 
 	return 0;
 }
···
  */
 int nft_register_expr(struct nft_expr_type *type)
 {
-	if (!nft_expr_check_ops(type->ops))
-		return -EINVAL;
-
 	nfnl_lock(NFNL_SUBSYS_NFTABLES);
 	if (type->family == NFPROTO_UNSPEC)
 		list_add_tail_rcu(&type->list, &nf_tables_expressions);
···
 				       (const struct nlattr * const *)info->tb);
 		if (IS_ERR(ops)) {
 			err = PTR_ERR(ops);
-			goto err1;
-		}
-		if (!nft_expr_check_ops(ops)) {
-			err = -EINVAL;
 			goto err1;
 		}
 	} else
···
 static void nf_tables_rule_release(const struct nft_ctx *ctx,
 				   struct nft_rule *rule)
 {
-	nft_rule_expr_deactivate(ctx, rule);
+	nft_rule_expr_deactivate(ctx, rule, NFT_TRANS_RELEASE);
 	nf_tables_rule_destroy(ctx, rule);
 }
 
···
 bind:
 	binding->chain = ctx->chain;
 	list_add_tail_rcu(&binding->list, &set->bindings);
+	nft_set_trans_bind(ctx, set);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(nf_tables_bind_set);
 
-void nf_tables_rebind_set(const struct nft_ctx *ctx, struct nft_set *set,
-			  struct nft_set_binding *binding)
-{
-	if (list_empty(&set->bindings) && nft_set_is_anonymous(set) &&
-	    nft_is_active(ctx->net, set))
-		list_add_tail_rcu(&set->list, &ctx->table->sets);
-
-	list_add_tail_rcu(&binding->list, &set->bindings);
-}
-EXPORT_SYMBOL_GPL(nf_tables_rebind_set);
-
 void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set,
-		          struct nft_set_binding *binding)
+			  struct nft_set_binding *binding, bool event)
 {
 	list_del_rcu(&binding->list);
 
-	if (list_empty(&set->bindings) && nft_set_is_anonymous(set) &&
-	    nft_is_active(ctx->net, set))
+	if (list_empty(&set->bindings) && nft_set_is_anonymous(set)) {
 		list_del_rcu(&set->list);
+		if (event)
+			nf_tables_set_notify(ctx, set, NFT_MSG_DELSET,
+					     GFP_KERNEL);
+	}
 }
 EXPORT_SYMBOL_GPL(nf_tables_unbind_set);
 
 void nf_tables_destroy_set(const struct nft_ctx *ctx, struct nft_set *set)
 {
-	if (list_empty(&set->bindings) && nft_set_is_anonymous(set) &&
-	    nft_is_active(ctx->net, set)) {
-		nf_tables_set_notify(ctx, set, NFT_MSG_DELSET, GFP_ATOMIC);
+	if (list_empty(&set->bindings) && nft_set_is_anonymous(set))
 		nft_set_destroy(set);
-	}
 }
 EXPORT_SYMBOL_GPL(nf_tables_destroy_set);
 
···
 			nf_tables_rule_notify(&trans->ctx,
 					      nft_trans_rule(trans),
 					      NFT_MSG_DELRULE);
+			nft_rule_expr_deactivate(&trans->ctx,
+						 nft_trans_rule(trans),
+						 NFT_TRANS_COMMIT);
 			break;
 		case NFT_MSG_NEWSET:
 			nft_clear(net, nft_trans_set(trans));
···
 		nf_tables_rule_destroy(&trans->ctx, nft_trans_rule(trans));
 		break;
 	case NFT_MSG_NEWSET:
-		nft_set_destroy(nft_trans_set(trans));
+		if (!nft_trans_set_bound(trans))
+			nft_set_destroy(nft_trans_set(trans));
 		break;
 	case NFT_MSG_NEWSETELEM:
 		nft_set_elem_destroy(nft_trans_elem_set(trans),
···
 		case NFT_MSG_NEWRULE:
 			trans->ctx.chain->use--;
 			list_del_rcu(&nft_trans_rule(trans)->list);
-			nft_rule_expr_deactivate(&trans->ctx, nft_trans_rule(trans));
+			nft_rule_expr_deactivate(&trans->ctx,
+						 nft_trans_rule(trans),
+						 NFT_TRANS_ABORT);
 			break;
 		case NFT_MSG_DELRULE:
 			trans->ctx.chain->use++;
···
 			break;
 		case NFT_MSG_NEWSET:
 			trans->ctx.table->use--;
-			list_del_rcu(&nft_trans_set(trans)->list);
+			if (!nft_trans_set_bound(trans))
+				list_del_rcu(&nft_trans_set(trans)->list);
 			break;
 		case NFT_MSG_DELSET:
 			trans->ctx.table->use++;

net/netfilter/nfnetlink_osf.c

···
 			     int ttl_check,
 			     struct nf_osf_hdr_ctx *ctx)
 {
+	const __u8 *optpinit = ctx->optp;
 	unsigned int check_WSS = 0;
 	int fmatch = FMATCH_WRONG;
 	int foptsize, optnum;
···
 			break;
 		}
 	}
+
+	if (fmatch != FMATCH_OK)
+		ctx->optp = optpinit;
 
 	return fmatch == FMATCH_OK;
 }

net/netfilter/nft_compat.c

···
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_arp/arp_tables.h>
 #include <net/netfilter/nf_tables.h>
+#include <net/netns/generic.h>
 
 struct nft_xt {
 	struct list_head	head;
 	struct nft_expr_ops	ops;
-	unsigned int		refcnt;
+	refcount_t		refcnt;
+
+	/* used only when transaction mutex is locked */
+	unsigned int		listcnt;
 
 	/* Unlike other expressions, ops doesn't have static storage duration.
 	 * nft core assumes they do.  We use kfree_rcu so that nft core can
···
 	void *info;
 };
 
+struct nft_compat_net {
+	struct list_head nft_target_list;
+	struct list_head nft_match_list;
+};
+
+static unsigned int nft_compat_net_id __read_mostly;
+static struct nft_expr_type nft_match_type;
+static struct nft_expr_type nft_target_type;
+
+static struct nft_compat_net *nft_compat_pernet(struct net *net)
+{
+	return net_generic(net, nft_compat_net_id);
+}
+
+static void nft_xt_get(struct nft_xt *xt)
+{
+	/* refcount_inc() warns on 0 -> 1 transition, but we can't
+	 * init the reference count to 1 in .select_ops -- we can't
+	 * undo such an increase when another expression inside the same
+	 * rule fails afterwards.
+	 */
+	if (xt->listcnt == 0)
+		refcount_set(&xt->refcnt, 1);
+	else
+		refcount_inc(&xt->refcnt);
+
+	xt->listcnt++;
+}
+
 static bool nft_xt_put(struct nft_xt *xt)
 {
-	if (--xt->refcnt == 0) {
-		list_del(&xt->head);
+	if (refcount_dec_and_test(&xt->refcnt)) {
+		WARN_ON_ONCE(!list_empty(&xt->head));
 		kfree_rcu(xt, rcu_head);
 		return true;
 	}
···
 		return -EINVAL;
 
 	nft_xt = container_of(expr->ops, struct nft_xt, ops);
-	nft_xt->refcnt++;
+	nft_xt_get(nft_xt);
 	return 0;
 }
 
···
 		return ret;
 
 	nft_xt = container_of(expr->ops, struct nft_xt, ops);
-	nft_xt->refcnt++;
+	nft_xt_get(nft_xt);
 	return 0;
 }
 
···
 nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
 {
 	__nft_match_destroy(ctx, expr, nft_expr_priv(expr));
+}
+
+static void nft_compat_deactivate(const struct nft_ctx *ctx,
+				  const struct nft_expr *expr,
+				  enum nft_trans_phase phase)
+{
+	struct nft_xt *xt = container_of(expr->ops, struct nft_xt, ops);
+
+	if (phase == NFT_TRANS_ABORT || phase == NFT_TRANS_COMMIT) {
+		if (--xt->listcnt == 0)
+			list_del_init(&xt->head);
+	}
 }
 
 static void
···
 	.cb		= nfnl_nft_compat_cb,
 };
 
-static LIST_HEAD(nft_match_list);
-
-static struct nft_expr_type nft_match_type;
-
 static bool nft_match_cmp(const struct xt_match *match,
 			  const char *name, u32 rev, u32 family)
 {
···
 nft_match_select_ops(const struct nft_ctx *ctx,
 		     const struct nlattr * const tb[])
 {
+	struct nft_compat_net *cn;
 	struct nft_xt *nft_match;
 	struct xt_match *match;
 	unsigned int matchsize;
···
 	rev = ntohl(nla_get_be32(tb[NFTA_MATCH_REV]));
 	family = ctx->family;
 
+	cn = nft_compat_pernet(ctx->net);
+
 	/* Re-use the existing match if it's already loaded. */
-	list_for_each_entry(nft_match, &nft_match_list, head) {
+	list_for_each_entry(nft_match, &cn->nft_match_list, head) {
 		struct xt_match *match = nft_match->ops.data;
 
 		if (nft_match_cmp(match, mt_name, rev, family))
···
 		goto err;
 	}
 
-	nft_match->refcnt = 0;
+	refcount_set(&nft_match->refcnt, 0);
 	nft_match->ops.type = &nft_match_type;
 	nft_match->ops.eval = nft_match_eval;
 	nft_match->ops.init = nft_match_init;
 	nft_match->ops.destroy = nft_match_destroy;
+	nft_match->ops.deactivate = nft_compat_deactivate;
 	nft_match->ops.dump = nft_match_dump;
 	nft_match->ops.validate = nft_match_validate;
 	nft_match->ops.data = match;
···
 
 	nft_match->ops.size = matchsize;
 
-	list_add(&nft_match->head, &nft_match_list);
+	nft_match->listcnt = 0;
+	list_add(&nft_match->head, &cn->nft_match_list);
 
 	return &nft_match->ops;
 err:
···
 	.owner		= THIS_MODULE,
 };
 
-static LIST_HEAD(nft_target_list);
-
-static struct nft_expr_type nft_target_type;
-
 static bool nft_target_cmp(const struct xt_target *tg,
 			   const char *name, u32 rev, u32 family)
 {
···
 nft_target_select_ops(const struct nft_ctx *ctx,
 		      const struct nlattr * const tb[])
 {
+	struct nft_compat_net *cn;
 	struct nft_xt *nft_target;
 	struct xt_target *target;
 	char *tg_name;
···
 	    strcmp(tg_name, "standard") == 0)
 		return ERR_PTR(-EINVAL);
 
+	cn = nft_compat_pernet(ctx->net);
 	/* Re-use the existing target if it's already loaded. */
-	list_for_each_entry(nft_target, &nft_target_list, head) {
+	list_for_each_entry(nft_target, &cn->nft_target_list, head) {
 		struct xt_target *target = nft_target->ops.data;
 
 		if (!target->target)
···
 		goto err;
 	}
 
-	nft_target->refcnt = 0;
+	refcount_set(&nft_target->refcnt, 0);
 	nft_target->ops.type = &nft_target_type;
 	nft_target->ops.size = NFT_EXPR_SIZE(XT_ALIGN(target->targetsize));
 	nft_target->ops.init = nft_target_init;
 	nft_target->ops.destroy = nft_target_destroy;
+	nft_target->ops.deactivate = nft_compat_deactivate;
 	nft_target->ops.dump = nft_target_dump;
 	nft_target->ops.validate = nft_target_validate;
 	nft_target->ops.data = target;
···
 	else
 		nft_target->ops.eval = nft_target_eval_xt;
 
-	list_add(&nft_target->head, &nft_target_list);
+	nft_target->listcnt = 0;
+	list_add(&nft_target->head, &cn->nft_target_list);
 
 	return &nft_target->ops;
 err:
···
 	.owner		= THIS_MODULE,
 };
 
+static int __net_init nft_compat_init_net(struct net *net)
+{
+	struct nft_compat_net *cn = nft_compat_pernet(net);
+
+	INIT_LIST_HEAD(&cn->nft_target_list);
+	INIT_LIST_HEAD(&cn->nft_match_list);
+
+	return 0;
+}
+
+static void __net_exit nft_compat_exit_net(struct net *net)
+{
+	struct nft_compat_net *cn = nft_compat_pernet(net);
+	struct nft_xt *xt, *next;
+
+	if (list_empty(&cn->nft_match_list) &&
+	    list_empty(&cn->nft_target_list))
+		return;
+
+	/* If there was an error that caused nft_xt expr to not be initialized
+	 * fully and noone else requested the same expression later, the lists
+	 * contain 0-refcount entries that still hold module reference.
+	 *
+	 * Clean them here.
+	 */
+	mutex_lock(&net->nft.commit_mutex);
+	list_for_each_entry_safe(xt, next, &cn->nft_target_list, head) {
+		struct xt_target *target = xt->ops.data;
+
+		list_del_init(&xt->head);
+
+		if (refcount_read(&xt->refcnt))
+			continue;
+		module_put(target->me);
+		kfree(xt);
+	}
+
+	list_for_each_entry_safe(xt, next, &cn->nft_match_list, head) {
+		struct xt_match *match = xt->ops.data;
+
+		list_del_init(&xt->head);
+
+		if (refcount_read(&xt->refcnt))
+			continue;
+		module_put(match->me);
+		kfree(xt);
+	}
+	mutex_unlock(&net->nft.commit_mutex);
+}
+
+static struct pernet_operations nft_compat_net_ops = {
+	.init	= nft_compat_init_net,
+	.exit	= nft_compat_exit_net,
+	.id	= &nft_compat_net_id,
+	.size	= sizeof(struct nft_compat_net),
+};
+
 static int __init nft_compat_module_init(void)
 {
 	int ret;
 
+	ret = register_pernet_subsys(&nft_compat_net_ops);
+	if (ret < 0)
+		goto err_target;
+
 	ret = nft_register_expr(&nft_match_type);
 	if (ret < 0)
-		return ret;
+		goto err_pernet;
 
 	ret = nft_register_expr(&nft_target_type);
 	if (ret < 0)
···
 	}
 
 	return ret;
-
 err_target:
 	nft_unregister_expr(&nft_target_type);
 err_match:
 	nft_unregister_expr(&nft_match_type);
+err_pernet:
+	unregister_pernet_subsys(&nft_compat_net_ops);
 	return ret;
 }
 
 static void __exit nft_compat_module_exit(void)
 {
-	struct nft_xt *xt, *next;
-
-	/* list should be empty here, it can be non-empty only in case there
-	 * was an error that caused nft_xt expr to not be initialized fully
-	 * and noone else requested the same expression later.
-	 *
-	 * In this case, the lists contain 0-refcount entries that still
-	 * hold module reference.
-	 */
-	list_for_each_entry_safe(xt, next, &nft_target_list, head) {
-		struct xt_target *target = xt->ops.data;
-
-		if (WARN_ON_ONCE(xt->refcnt))
-			continue;
-		module_put(target->me);
-		kfree(xt);
-	}
-
-	list_for_each_entry_safe(xt, next, &nft_match_list, head) {
-		struct xt_match *match = xt->ops.data;
-
-		if (WARN_ON_ONCE(xt->refcnt))
-			continue;
-		module_put(match->me);
-		kfree(xt);
-	}
 	nfnetlink_subsys_unregister(&nfnl_compat_subsys);
 	nft_unregister_expr(&nft_target_type);
 	nft_unregister_expr(&nft_match_type);
+	unregister_pernet_subsys(&nft_compat_net_ops);
 }
 
 MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_NFT_COMPAT);

net/netfilter/nft_dynset.c

···
 	return err;
 }
 
-static void nft_dynset_activate(const struct nft_ctx *ctx,
-				const struct nft_expr *expr)
-{
-	struct nft_dynset *priv = nft_expr_priv(expr);
-
-	nf_tables_rebind_set(ctx, priv->set, &priv->binding);
-}
-
 static void nft_dynset_deactivate(const struct nft_ctx *ctx,
-				  const struct nft_expr *expr)
+				  const struct nft_expr *expr,
+				  enum nft_trans_phase phase)
 {
 	struct nft_dynset *priv = nft_expr_priv(expr);
 
-	nf_tables_unbind_set(ctx, priv->set, &priv->binding);
+	if (phase == NFT_TRANS_PREPARE)
+		return;
+
+	nf_tables_unbind_set(ctx, priv->set, &priv->binding,
+			     phase == NFT_TRANS_COMMIT);
 }
 
 static void nft_dynset_destroy(const struct nft_ctx *ctx,
···
 	.eval		= nft_dynset_eval,
 	.init		= nft_dynset_init,
 	.destroy	= nft_dynset_destroy,
-	.activate	= nft_dynset_activate,
 	.deactivate	= nft_dynset_deactivate,
 	.dump		= nft_dynset_dump,
 };

net/netfilter/nft_immediate.c

···
 }
 
 static void nft_immediate_deactivate(const struct nft_ctx *ctx,
-				     const struct nft_expr *expr)
+				     const struct nft_expr *expr,
+				     enum nft_trans_phase phase)
 {
 	const struct nft_immediate_expr *priv = nft_expr_priv(expr);
+
+	if (phase == NFT_TRANS_COMMIT)
+		return;
 
 	return nft_data_release(&priv->data, nft_dreg_to_type(priv->dreg));
 }

net/netfilter/nft_lookup.c

···
 	return 0;
 }
 
-static void nft_lookup_activate(const struct nft_ctx *ctx,
-				const struct nft_expr *expr)
-{
-	struct nft_lookup *priv = nft_expr_priv(expr);
-
-	nf_tables_rebind_set(ctx, priv->set, &priv->binding);
-}
-
 static void nft_lookup_deactivate(const struct nft_ctx *ctx,
-				  const struct nft_expr *expr)
+				  const struct nft_expr *expr,
+				  enum nft_trans_phase phase)
 {
 	struct nft_lookup *priv = nft_expr_priv(expr);
 
-	nf_tables_unbind_set(ctx, priv->set, &priv->binding);
+	if (phase == NFT_TRANS_PREPARE)
+		return;
+
+	nf_tables_unbind_set(ctx, priv->set, &priv->binding,
+			     phase == NFT_TRANS_COMMIT);
 }
 
 static void nft_lookup_destroy(const struct nft_ctx *ctx,
···
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_lookup)),
 	.eval		= nft_lookup_eval,
 	.init		= nft_lookup_init,
-	.activate	= nft_lookup_activate,
 	.deactivate	= nft_lookup_deactivate,
 	.destroy	= nft_lookup_destroy,
 	.dump		= nft_lookup_dump,

net/netfilter/nft_objref.c

···
 	return -1;
 }
 
-static void nft_objref_map_activate(const struct nft_ctx *ctx,
-				    const struct nft_expr *expr)
-{
-	struct nft_objref_map *priv = nft_expr_priv(expr);
-
-	nf_tables_rebind_set(ctx, priv->set, &priv->binding);
-}
-
 static void nft_objref_map_deactivate(const struct nft_ctx *ctx,
-				      const struct nft_expr *expr)
+				      const struct nft_expr *expr,
+				      enum nft_trans_phase phase)
 {
 	struct nft_objref_map *priv = nft_expr_priv(expr);
 
-	nf_tables_unbind_set(ctx, priv->set, &priv->binding);
+	if (phase == NFT_TRANS_PREPARE)
+		return;
+
+	nf_tables_unbind_set(ctx, priv->set, &priv->binding,
+			     phase == NFT_TRANS_COMMIT);
 }
 
 static void nft_objref_map_destroy(const struct nft_ctx *ctx,
···
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_objref_map)),
 	.eval		= nft_objref_map_eval,
 	.init		= nft_objref_map_init,
-	.activate	= nft_objref_map_activate,
 	.deactivate	= nft_objref_map_deactivate,
 	.destroy	= nft_objref_map_destroy,
 	.dump		= nft_objref_map_dump,

net/netrom/nr_timer.c

···
 {
 	struct nr_sock *nr = nr_sk(sk);
 
-	mod_timer(&nr->t1timer, jiffies + nr->t1);
+	sk_reset_timer(sk, &nr->t1timer, jiffies + nr->t1);
 }
 
 void nr_start_t2timer(struct sock *sk)
 {
 	struct nr_sock *nr = nr_sk(sk);
 
-	mod_timer(&nr->t2timer, jiffies + nr->t2);
+	sk_reset_timer(sk, &nr->t2timer, jiffies + nr->t2);
 }
 
 void nr_start_t4timer(struct sock *sk)
 {
 	struct nr_sock *nr = nr_sk(sk);
 
-	mod_timer(&nr->t4timer, jiffies + nr->t4);
+	sk_reset_timer(sk, &nr->t4timer, jiffies + nr->t4);
 }
 
 void nr_start_idletimer(struct sock *sk)
···
 	struct nr_sock *nr = nr_sk(sk);
 
 	if (nr->idle > 0)
-		mod_timer(&nr->idletimer, jiffies + nr->idle);
+		sk_reset_timer(sk, &nr->idletimer, jiffies + nr->idle);
 }
 
 void nr_start_heartbeat(struct sock *sk)
 {
-	mod_timer(&sk->sk_timer, jiffies + 5 * HZ);
+	sk_reset_timer(sk, &sk->sk_timer, jiffies + 5 * HZ);
 }
 
 void nr_stop_t1timer(struct sock *sk)
 {
-	del_timer(&nr_sk(sk)->t1timer);
+	sk_stop_timer(sk, &nr_sk(sk)->t1timer);
 }
 
 void nr_stop_t2timer(struct sock *sk)
 {
-	del_timer(&nr_sk(sk)->t2timer);
+	sk_stop_timer(sk, &nr_sk(sk)->t2timer);
 }
 
 void nr_stop_t4timer(struct sock *sk)
 {
-	del_timer(&nr_sk(sk)->t4timer);
+	sk_stop_timer(sk, &nr_sk(sk)->t4timer);
 }
 
 void nr_stop_idletimer(struct sock *sk)
 {
-	del_timer(&nr_sk(sk)->idletimer);
+	sk_stop_timer(sk, &nr_sk(sk)->idletimer);
 }
 
 void nr_stop_heartbeat(struct sock *sk)
 {
-	del_timer(&sk->sk_timer);
+	sk_stop_timer(sk, &sk->sk_timer);
 }
 
 int nr_t1timer_running(struct sock *sk)

net/rds/bind.c

···
 	__rds_create_bind_key(key, addr, port, scope_id);
 	rcu_read_lock();
 	rs = rhashtable_lookup(&bind_hash_table, key, ht_parms);
-	if (rs && !sock_flag(rds_rs_to_sk(rs), SOCK_DEAD))
-		rds_sock_addref(rs);
-	else
+	if (rs && (sock_flag(rds_rs_to_sk(rs), SOCK_DEAD) ||
+		   !refcount_inc_not_zero(&rds_rs_to_sk(rs)->sk_refcnt)))
 		rs = NULL;
+
 	rcu_read_unlock();
 
 	rdsdebug("returning rs %p for %pI6c:%u\n", rs, addr,

net/rose/rose_route.c

···
 
 /*
  *	Route a frame to an appropriate AX.25 connection.
+ *	A NULL ax25_cb indicates an internally generated frame.
  */
 int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)
 {
···
 
 	if (skb->len < ROSE_MIN_LEN)
 		return res;
+
+	if (!ax25)
+		return rose_loopback_queue(skb, NULL);
+
 	frametype = skb->data[2];
 	lci = ((skb->data[0] << 8) & 0xF00) + ((skb->data[1] << 0) & 0x0FF);
 	if (frametype == ROSE_CALL_REQUEST &&

net/rxrpc/recvmsg.c

···
 	}
 error_no_call:
 	release_sock(&rx->sk);
+error_trace:
 	trace_rxrpc_recvmsg(call, rxrpc_recvmsg_return, 0, 0, 0, ret);
 	return ret;
 
···
 wait_error:
 	finish_wait(sk_sleep(&rx->sk), &wait);
 	call = NULL;
-	goto error_no_call;
+	goto error_trace;
 }
 
 /**

net/sched/cls_flower.c

···
 	if (!tc_skip_hw(fnew->flags)) {
 		err = fl_hw_replace_filter(tp, fnew, extack);
 		if (err)
-			goto errout_mask;
+			goto errout_mask_ht;
 	}
 
 	if (!tc_in_hw(fnew->flags))
···
 	kfree(tb);
 	kfree(mask);
 	return 0;
+
+errout_mask_ht:
+	rhashtable_remove_fast(&fnew->mask->ht, &fnew->ht_node,
+			       fnew->mask->filter_ht_params);
 
 errout_mask:
 	fl_mask_put(head, fnew->mask, false);

net/sctp/socket.c

···
 	struct sctp_endpoint *ep = sctp_sk(sk)->ep;
 	struct sctp_transport *transport = NULL;
 	struct sctp_sndrcvinfo _sinfo, *sinfo;
-	struct sctp_association *asoc;
+	struct sctp_association *asoc, *tmp;
 	struct sctp_cmsgs cmsgs;
 	union sctp_addr *daddr;
 	bool new = false;
···
 
 	/* SCTP_SENDALL process */
 	if ((sflags & SCTP_SENDALL) && sctp_style(sk, UDP)) {
-		list_for_each_entry(asoc, &ep->asocs, asocs) {
+		list_for_each_entry_safe(asoc, tmp, &ep->asocs, asocs) {
 			err = sctp_sendmsg_check_sflags(asoc, sflags, msg,
 							msg_len);
 			if (err == 0)

net/sctp/stream.c

···
 	}
 }
 
+static size_t fa_index(struct flex_array *fa, void *elem, size_t count)
+{
+	size_t index = 0;
+
+	while (count--) {
+		if (elem == flex_array_get(fa, index))
+			break;
+		index++;
+	}
+
+	return index;
+}
+
 /* Migrates chunks from stream queues to new stream queues if needed,
  * but not across associations. Also, removes those chunks to streams
  * higher than the new max.
···
 
 	if (stream->out) {
 		fa_copy(out, stream->out, 0, min(outcnt, stream->outcnt));
+		if (stream->out_curr) {
+			size_t index = fa_index(stream->out, stream->out_curr,
+						stream->outcnt);
+
+			BUG_ON(index == stream->outcnt);
+			stream->out_curr = flex_array_get(out, index);
+		}
 		fa_free(stream->out);
 	}
 

net/smc/af_smc.c

···
 
 	smc = smc_sk(sk);
 	lock_sock(sk);
+	if (sk->sk_state == SMC_CLOSED && (sk->sk_shutdown & RCV_SHUTDOWN)) {
+		/* socket was connected before, no more data to read */
+		rc = 0;
+		goto out;
+	}
 	if ((sk->sk_state == SMC_INIT) ||
 	    (sk->sk_state == SMC_LISTEN) ||
 	    (sk->sk_state == SMC_CLOSED))
···
 
 	smc = smc_sk(sk);
 	lock_sock(sk);
-
+	if (sk->sk_state == SMC_CLOSED && (sk->sk_shutdown & RCV_SHUTDOWN)) {
+		/* socket was connected before, no more data to read */
+		rc = 0;
+		goto out;
+	}
 	if (sk->sk_state == SMC_INIT ||
 	    sk->sk_state == SMC_LISTEN ||
 	    sk->sk_state == SMC_CLOSED)

net/smc/smc_cdc.c

···
 
 /********************************** send *************************************/
 
-struct smc_cdc_tx_pend {
-	struct smc_connection	*conn;		/* socket connection */
-	union smc_host_cursor	cursor;	/* tx sndbuf cursor sent */
-	union smc_host_cursor	p_cursor;	/* rx RMBE cursor produced */
-	u16			ctrl_seq;	/* conn. tx sequence # */
-};
-
 /* handler for send/transmission completion of a CDC msg */
 static void smc_cdc_tx_handler(struct smc_wr_tx_pend_priv *pnd_snd,
 			       struct smc_link *link,
···
 
 int smc_cdc_get_free_slot(struct smc_connection *conn,
 			  struct smc_wr_buf **wr_buf,
+			  struct smc_rdma_wr **wr_rdma_buf,
 			  struct smc_cdc_tx_pend **pend)
 {
 	struct smc_link *link = &conn->lgr->lnk[SMC_SINGLE_LINK];
 	int rc;
 
 	rc = smc_wr_tx_get_free_slot(link, smc_cdc_tx_handler, wr_buf,
+				     wr_rdma_buf,
 				     (struct smc_wr_tx_pend_priv **)pend);
 	if (!conn->alert_token_local)
 		/* abnormal termination */
···
 		     struct smc_wr_buf *wr_buf,
 		     struct smc_cdc_tx_pend *pend)
 {
+	union smc_host_cursor cfed;
 	struct smc_link *link;
 	int rc;
 
···
 	conn->local_tx_ctrl.seqno = conn->tx_cdc_seq;
 	smc_host_msg_to_cdc((struct smc_cdc_msg *)wr_buf,
 			    &conn->local_tx_ctrl, conn);
+	smc_curs_copy(&cfed, &((struct smc_host_cdc_msg *)wr_buf)->cons, conn);
 	rc = smc_wr_tx_send(link, (struct smc_wr_tx_pend_priv *)pend);
 	if (!rc)
-		smc_curs_copy(&conn->rx_curs_confirmed,
-			      &conn->local_tx_ctrl.cons, conn);
+		smc_curs_copy(&conn->rx_curs_confirmed, &cfed, conn);
 
 	return rc;
 }
···
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
-	rc = smc_cdc_get_free_slot(conn, &wr_buf, &pend);
+	rc = smc_cdc_get_free_slot(conn, &wr_buf, NULL, &pend);
 	if (rc)
 		return rc;
 
-	return smc_cdc_msg_send(conn, wr_buf, pend);
+	spin_lock_bh(&conn->send_lock);
+	rc = smc_cdc_msg_send(conn, wr_buf, pend);
+	spin_unlock_bh(&conn->send_lock);
+	return rc;
 }
 
 int smc_cdc_get_slot_and_msg_send(struct smc_connection *conn)

net/smc/smc_cdc.h

···
 #endif
 }
 
-/* calculate cursor difference between old and new, where old <= new */
+/* calculate cursor difference between old and new, where old <= new and
+ * difference cannot exceed size
+ */
 static inline int smc_curs_diff(unsigned int size,
 				union smc_host_cursor *old,
 				union smc_host_cursor *new)
···
 	    (old->wrap == new->wrap && old->count > new->count))
 		return -smc_curs_diff(size, new, old);
 	return smc_curs_diff(size, old, new);
+}
+
+/* calculate cursor difference between old and new, where old <= new and
+ * difference may exceed size
+ */
+static inline int smc_curs_diff_large(unsigned int size,
+				      union smc_host_cursor *old,
+				      union smc_host_cursor *new)
+{
+	if (old->wrap < new->wrap)
+		return min_t(int,
+			     (size - old->count) + new->count +
+			     (new->wrap - old->wrap - 1) * size,
+			     size);
+
+	if (old->wrap > new->wrap) /* wrap has switched from 0xffff to 0x0000 */
+		return min_t(int,
+			     (size - old->count) + new->count +
+			     (new->wrap + 0xffff - old->wrap) * size,
+			     size);
+
+	return max_t(int, 0, (new->count - old->count));
 }
 
 static inline void smc_host_cursor_to_cdc(union smc_cdc_cursor *peer,
···
 		smcr_cdc_msg_to_host(local, peer, conn);
 }
 
-struct smc_cdc_tx_pend;
+struct smc_cdc_tx_pend {
+	struct smc_connection	*conn;		/* socket connection */
+	union smc_host_cursor	cursor;		/* tx sndbuf cursor sent */
+	union smc_host_cursor	p_cursor;	/* rx RMBE cursor produced */
+	u16			ctrl_seq;	/* conn. tx sequence # */
+};
 
 int smc_cdc_get_free_slot(struct smc_connection *conn,
 			  struct smc_wr_buf **wr_buf,
+			  struct smc_rdma_wr **wr_rdma_buf,
 			  struct smc_cdc_tx_pend **pend);
 void smc_cdc_tx_dismiss_slots(struct smc_connection *conn);
 int smc_cdc_msg_send(struct smc_connection *conn, struct smc_wr_buf *wr_buf,

net/smc/smc_clc.c

···
 	vec.iov_len = sizeof(struct smc_clc_msg_decline);
 	len = kernel_sendmsg(smc->clcsock, &msg, &vec, 1,
 			     sizeof(struct smc_clc_msg_decline));
-	if (len < sizeof(struct smc_clc_msg_decline))
+	if (len < 0 || len < sizeof(struct smc_clc_msg_decline))
 		len = -EPROTO;
 	return len > 0 ? 0 : len;
 }

net/smc/smc_close.c

···
 
 	switch (sk->sk_state) {
 	case SMC_INIT:
-		if (atomic_read(&conn->bytes_to_rcv) ||
-		    (rxflags->peer_done_writing &&
-		     !smc_cdc_rxed_any_close(conn))) {
-			sk->sk_state = SMC_APPCLOSEWAIT1;
-		} else {
-			sk->sk_state = SMC_CLOSED;
-			sock_put(sk); /* passive closing */
-		}
+		sk->sk_state = SMC_APPCLOSEWAIT1;
 		break;
 	case SMC_ACTIVE:
 		sk->sk_state = SMC_APPCLOSEWAIT1;

net/smc/smc_core.c

···
 {
 	struct smc_link_group *lgr = conn->lgr;
 
+	if (!lgr)
+		return;
 	write_lock_bh(&lgr->conns_lock);
 	if (conn->alert_token_local) {
 		__smc_lgr_unregister_conn(conn);
···
 		conn->sndbuf_desc->used = 0;
 	if (conn->rmb_desc) {
 		if (!conn->rmb_desc->regerr) {
-			conn->rmb_desc->used = 0;
 			if (!lgr->is_smcd) {
 				/* unregister rmb with peer */
 				smc_llc_do_delete_rkey(
 						&lgr->lnk[SMC_SINGLE_LINK],
 						conn->rmb_desc);
 			}
+			conn->rmb_desc->used = 0;
 		} else {
 			/* buf registration failed, reuse not possible */
 			write_lock_bh(&lgr->rmbs_lock);
···
 			local_contact = SMC_REUSE_CONTACT;
 			conn->lgr = lgr;
 			smc_lgr_register_conn(conn); /* add smc conn to lgr */
+			if (delayed_work_pending(&lgr->free_work))
+				cancel_delayed_work(&lgr->free_work);
 			write_unlock_bh(&lgr->conns_lock);
 			break;
 		}

net/smc/smc_core.h

···
 	FAILED		/* ib_wr_reg_mr response: failure */
 };
 
+struct smc_rdma_sge {				/* sges for RDMA writes */
+	struct ib_sge		wr_tx_rdma_sge[SMC_IB_MAX_SEND_SGE];
+};
+
+#define SMC_MAX_RDMA_WRITES	2		/* max. # of RDMA writes per
+						 * message send
+						 */
+
+struct smc_rdma_sges {				/* sges per message send */
+	struct smc_rdma_sge	tx_rdma_sge[SMC_MAX_RDMA_WRITES];
+};
+
+struct smc_rdma_wr {				/* work requests per message
+						 * send
+						 */
+	struct ib_rdma_wr	wr_tx_rdma[SMC_MAX_RDMA_WRITES];
+};
+
 struct smc_link {
 	struct smc_ib_device	*smcibdev;	/* ib-device */
 	u8			ibport;		/* port - values 1 | 2 */
···
 	struct smc_wr_buf	*wr_tx_bufs;	/* WR send payload buffers */
 	struct ib_send_wr	*wr_tx_ibs;	/* WR send meta data */
 	struct ib_sge		*wr_tx_sges;	/* WR send gather meta data */
+	struct smc_rdma_sges	*wr_tx_rdma_sges;/*RDMA WRITE gather meta data*/
+	struct smc_rdma_wr	*wr_tx_rdmas;	/* WR RDMA WRITE */
 	struct smc_wr_tx_pend	*wr_tx_pends;	/* WR send waiting for CQE */
 	/* above four vectors have wr_tx_cnt elements and use the same index */
 	dma_addr_t		wr_tx_dma_addr;	/* DMA address of wr_tx_bufs */

net/smc/smc_ib.c

···
 
 static void smc_ib_qp_event_handler(struct ib_event *ibevent, void *priv)
 {
-	struct smc_ib_device *smcibdev =
-		(struct smc_ib_device *)ibevent->device;
+	struct smc_link *lnk = (struct smc_link *)priv;
+	struct smc_ib_device *smcibdev = lnk->smcibdev;
 	u8 port_idx;
 
 	switch (ibevent->event) {
···
 	case IB_EVENT_GID_CHANGE:
 	case IB_EVENT_PORT_ERR:
 	case IB_EVENT_QP_ACCESS_ERR:
-		port_idx = ibevent->element.port_num - 1;
+		port_idx = ibevent->element.qp->port - 1;
 		set_bit(port_idx, &smcibdev->port_event_mask);
 		schedule_work(&smcibdev->port_event_work);
 		break;

net/smc/smc_llc.c

···
 {
 	int rc;
 
-	rc = smc_wr_tx_get_free_slot(link, smc_llc_tx_handler, wr_buf, pend);
+	rc = smc_wr_tx_get_free_slot(link, smc_llc_tx_handler, wr_buf, NULL,
+				     pend);
 	if (rc < 0)
 		return rc;
 	BUILD_BUG_ON_MSG(

net/smc/smc_pnet.c

···
 static struct nla_policy smc_pnet_policy[SMC_PNETID_MAX + 1] = {
 	[SMC_PNETID_NAME] = {
 		.type = NLA_NUL_STRING,
-		.len = SMC_MAX_PNETID_LEN - 1
+		.len = SMC_MAX_PNETID_LEN
 	},
 	[SMC_PNETID_ETHNAME] = {
 		.type = NLA_NUL_STRING,

net/smc/smc_tx.c

···
 			conn->local_tx_ctrl.prod_flags.urg_data_pending = 1;
 
 		if (!atomic_read(&conn->sndbuf_space) || conn->urg_tx_pend) {
+			if (send_done)
+				return send_done;
 			rc = smc_tx_wait(smc, msg->msg_flags);
-			if (rc) {
-				if (send_done)
-					return send_done;
+			if (rc)
 				goto out_err;
-			}
 			continue;
 		}
 
···
 
 /* sndbuf consumer: actual data transfer of one target chunk with RDMA write */
 static int smc_tx_rdma_write(struct smc_connection *conn, int peer_rmbe_offset,
-			     int num_sges, struct ib_sge sges[])
+			     int num_sges, struct ib_rdma_wr *rdma_wr)
 {
 	struct smc_link_group *lgr = conn->lgr;
-	struct ib_rdma_wr rdma_wr;
 	struct smc_link *link;
 	int rc;
 
-	memset(&rdma_wr, 0, sizeof(rdma_wr));
 	link = &lgr->lnk[SMC_SINGLE_LINK];
-	rdma_wr.wr.wr_id = smc_wr_tx_get_next_wr_id(link);
-	rdma_wr.wr.sg_list = sges;
-	rdma_wr.wr.num_sge = num_sges;
-	rdma_wr.wr.opcode = IB_WR_RDMA_WRITE;
-	rdma_wr.remote_addr =
+	rdma_wr->wr.wr_id = smc_wr_tx_get_next_wr_id(link);
+	rdma_wr->wr.num_sge = num_sges;
+	rdma_wr->remote_addr =
 		lgr->rtokens[conn->rtoken_idx][SMC_SINGLE_LINK].dma_addr +
 		/* RMBE within RMB */
 		conn->tx_off +
 		/* offset within RMBE */
 		peer_rmbe_offset;
-	rdma_wr.rkey = lgr->rtokens[conn->rtoken_idx][SMC_SINGLE_LINK].rkey;
-	rc = ib_post_send(link->roce_qp, &rdma_wr.wr, NULL);
+	rdma_wr->rkey = lgr->rtokens[conn->rtoken_idx][SMC_SINGLE_LINK].rkey;
+	rc = ib_post_send(link->roce_qp, &rdma_wr->wr, NULL);
 	if (rc) {
 		conn->local_tx_ctrl.conn_state_flags.peer_conn_abort = 1;
 		smc_lgr_terminate(lgr);
···
 /* SMC-R helper for smc_tx_rdma_writes() */
 static int smcr_tx_rdma_writes(struct smc_connection *conn, size_t len,
 			       size_t src_off, size_t src_len,
-			       size_t dst_off, size_t dst_len)
+			       size_t dst_off, size_t dst_len,
+			       struct smc_rdma_wr *wr_rdma_buf)
 {
 	dma_addr_t dma_addr =
 		sg_dma_address(conn->sndbuf_desc->sgt[SMC_SINGLE_LINK].sgl);
-	struct smc_link *link = &conn->lgr->lnk[SMC_SINGLE_LINK];
 	int src_len_sum = src_len, dst_len_sum = dst_len;
-	struct ib_sge sges[SMC_IB_MAX_SEND_SGE];
 	int sent_count = src_off;
 	int srcchunk, dstchunk;
 	int num_sges;
 	int rc;
 
 	for (dstchunk = 0; dstchunk < 2; dstchunk++) {
+		struct ib_sge *sge =
+			wr_rdma_buf->wr_tx_rdma[dstchunk].wr.sg_list;
+
 		num_sges = 0;
 		for (srcchunk = 0; srcchunk < 2; srcchunk++) {
-			sges[srcchunk].addr = dma_addr + src_off;
-			sges[srcchunk].length = src_len;
-			sges[srcchunk].lkey = link->roce_pd->local_dma_lkey;
+			sge[srcchunk].addr = dma_addr + src_off;
+			sge[srcchunk].length = src_len;
 			num_sges++;
 
 			src_off += src_len;
···
 			src_len = dst_len - src_len; /* remainder */
 			src_len_sum += src_len;
 		}
-		rc = smc_tx_rdma_write(conn, dst_off, num_sges, sges);
+		rc = smc_tx_rdma_write(conn, dst_off, num_sges,
+				       &wr_rdma_buf->wr_tx_rdma[dstchunk]);
 		if (rc)
 			return rc;
 		if (dst_len_sum == len)
···
 /* sndbuf consumer: prepare all necessary (src&dst) chunks of data transmit;
  * usable snd_wnd as max transmit
  */
-static int smc_tx_rdma_writes(struct smc_connection *conn)
+static int smc_tx_rdma_writes(struct smc_connection *conn,
+			      struct smc_rdma_wr *wr_rdma_buf)
 {
 	size_t len, src_len, dst_off, dst_len; /* current chunk values */
 	union smc_host_cursor sent, prep, prod, cons;
···
 					 dst_off, dst_len);
 	else
 		rc = smcr_tx_rdma_writes(conn, len, sent.count, src_len,
-					 dst_off, dst_len);
+					 dst_off, dst_len, wr_rdma_buf);
 	if (rc)
 		return rc;
 
···
 static int smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
 {
 	struct smc_cdc_producer_flags *pflags;
+	struct smc_rdma_wr *wr_rdma_buf;
 	struct smc_cdc_tx_pend *pend;
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
-	spin_lock_bh(&conn->send_lock);
-	rc = smc_cdc_get_free_slot(conn, &wr_buf, &pend);
+	rc = smc_cdc_get_free_slot(conn, &wr_buf, &wr_rdma_buf, &pend);
 	if (rc < 0) {
 		if (rc == -EBUSY) {
 			struct smc_sock *smc =
 				container_of(conn, struct smc_sock, conn);
 
-			if (smc->sk.sk_err == ECONNABORTED) {
-				rc = sock_error(&smc->sk);
-				goto out_unlock;
-			}
+			if (smc->sk.sk_err == ECONNABORTED)
+				return sock_error(&smc->sk);
 			rc = 0;
 			if (conn->alert_token_local) /* connection healthy */
 				mod_delayed_work(system_wq, &conn->tx_work,
 						 SMC_TX_WORK_DELAY);
 		}
-		goto out_unlock;
+		return rc;
 	}
 
+	spin_lock_bh(&conn->send_lock);
 	if (!conn->local_tx_ctrl.prod_flags.urg_data_present) {
-		rc = smc_tx_rdma_writes(conn);
+		rc = smc_tx_rdma_writes(conn, wr_rdma_buf);
 		if (rc) {
 			smc_wr_tx_put_slot(&conn->lgr->lnk[SMC_SINGLE_LINK],
 					   (struct smc_wr_tx_pend_priv *)pend);
···
 
 	spin_lock_bh(&conn->send_lock);
 	if (!pflags->urg_data_present)
-		rc = smc_tx_rdma_writes(conn);
+		rc = smc_tx_rdma_writes(conn, NULL);
 	if (!rc)
 		rc = smcd_cdc_msg_send(conn);
 
···
 	if (to_confirm > conn->rmbe_update_limit) {
 		smc_curs_copy(&prod, &conn->local_rx_ctrl.prod, conn);
 		sender_free = conn->rmb_desc->len -
-			      smc_curs_diff(conn->rmb_desc->len, &prod, &cfed);
+			      smc_curs_diff_large(conn->rmb_desc->len,
+						  &cfed, &prod);
 	}
 
 	if (conn->local_rx_ctrl.prod_flags.cons_curs_upd_req ||

net/smc/smc_wr.c

···
  * @link:		Pointer to smc_link used to later send the message.
  * @handler:		Send completion handler function pointer.
  * @wr_buf:		Out value returns pointer to message buffer.
+ * @wr_rdma_buf:	Out value returns pointer to rdma work request.
  * @wr_pend_priv:	Out value returns pointer serving as handler context.
  *
  * Return: 0 on success, or -errno on error.
···
 int smc_wr_tx_get_free_slot(struct smc_link *link,
 			    smc_wr_tx_handler handler,
 			    struct smc_wr_buf **wr_buf,
+			    struct smc_rdma_wr **wr_rdma_buf,
 			    struct smc_wr_tx_pend_priv **wr_pend_priv)
 {
 	struct smc_wr_tx_pend *wr_pend;
···
 	wr_ib = &link->wr_tx_ibs[idx];
 	wr_ib->wr_id = wr_id;
 	*wr_buf = &link->wr_tx_bufs[idx];
+	if (wr_rdma_buf)
+		*wr_rdma_buf = &link->wr_tx_rdmas[idx];
 	*wr_pend_priv = &wr_pend->priv;
 	return 0;
 }
···
 		u32 idx = pend->idx;
 
 		/* clear the full struct smc_wr_tx_pend including .priv */
-		memset(&link->wr_tx_pends[pend->idx], 0,
-		       sizeof(link->wr_tx_pends[pend->idx]));
-		memset(&link->wr_tx_bufs[pend->idx], 0,
-		       sizeof(link->wr_tx_bufs[pend->idx]));
+		memset(&link->wr_tx_pends[idx], 0,
+		       sizeof(link->wr_tx_pends[idx]));
+		memset(&link->wr_tx_bufs[idx], 0,
+		       sizeof(link->wr_tx_bufs[idx]));
 		test_and_clear_bit(idx, link->wr_tx_mask);
 		return 1;
 	}
···
 			lnk->wr_tx_dma_addr + i * SMC_WR_BUF_SIZE;
 		lnk->wr_tx_sges[i].length = SMC_WR_TX_SIZE;
 		lnk->wr_tx_sges[i].lkey = lnk->roce_pd->local_dma_lkey;
+		lnk->wr_tx_rdma_sges[i].tx_rdma_sge[0].wr_tx_rdma_sge[0].lkey =
+			lnk->roce_pd->local_dma_lkey;
+		lnk->wr_tx_rdma_sges[i].tx_rdma_sge[0].wr_tx_rdma_sge[1].lkey =
+			lnk->roce_pd->local_dma_lkey;
+		lnk->wr_tx_rdma_sges[i].tx_rdma_sge[1].wr_tx_rdma_sge[0].lkey =
+			lnk->roce_pd->local_dma_lkey;
+		lnk->wr_tx_rdma_sges[i].tx_rdma_sge[1].wr_tx_rdma_sge[1].lkey =
+			lnk->roce_pd->local_dma_lkey;
 		lnk->wr_tx_ibs[i].next = NULL;
 		lnk->wr_tx_ibs[i].sg_list = &lnk->wr_tx_sges[i];
 		lnk->wr_tx_ibs[i].num_sge = 1;
 		lnk->wr_tx_ibs[i].opcode = IB_WR_SEND;
 		lnk->wr_tx_ibs[i].send_flags =
 			IB_SEND_SIGNALED | IB_SEND_SOLICITED;
+		lnk->wr_tx_rdmas[i].wr_tx_rdma[0].wr.opcode = IB_WR_RDMA_WRITE;
+		lnk->wr_tx_rdmas[i].wr_tx_rdma[1].wr.opcode = IB_WR_RDMA_WRITE;
+		lnk->wr_tx_rdmas[i].wr_tx_rdma[0].wr.sg_list =
+			lnk->wr_tx_rdma_sges[i].tx_rdma_sge[0].wr_tx_rdma_sge;
+		lnk->wr_tx_rdmas[i].wr_tx_rdma[1].wr.sg_list =
+			lnk->wr_tx_rdma_sges[i].tx_rdma_sge[1].wr_tx_rdma_sge;
 	}
 	for (i = 0; i < lnk->wr_rx_cnt; i++) {
 		lnk->wr_rx_sges[i].addr =
···
 	lnk->wr_tx_mask = NULL;
 	kfree(lnk->wr_tx_sges);
 	lnk->wr_tx_sges = NULL;
+	kfree(lnk->wr_tx_rdma_sges);
+	lnk->wr_tx_rdma_sges = NULL;
 	kfree(lnk->wr_rx_sges);
 	lnk->wr_rx_sges = NULL;
+	kfree(lnk->wr_tx_rdmas);
+	lnk->wr_tx_rdmas = NULL;
 	kfree(lnk->wr_rx_ibs);
 	lnk->wr_rx_ibs = NULL;
 	kfree(lnk->wr_tx_ibs);
···
 				  GFP_KERNEL);
 	if (!link->wr_rx_ibs)
 		goto no_mem_wr_tx_ibs;
+	link->wr_tx_rdmas = kcalloc(SMC_WR_BUF_CNT,
+				    sizeof(link->wr_tx_rdmas[0]),
+				    GFP_KERNEL);
+	if (!link->wr_tx_rdmas)
+		goto no_mem_wr_rx_ibs;
+	link->wr_tx_rdma_sges = kcalloc(SMC_WR_BUF_CNT,
+					sizeof(link->wr_tx_rdma_sges[0]),
+					GFP_KERNEL);
+	if (!link->wr_tx_rdma_sges)
+		goto no_mem_wr_tx_rdmas;
 	link->wr_tx_sges = kcalloc(SMC_WR_BUF_CNT, sizeof(link->wr_tx_sges[0]),
 				   GFP_KERNEL);
 	if (!link->wr_tx_sges)
-		goto no_mem_wr_rx_ibs;
+		goto no_mem_wr_tx_rdma_sges;
 	link->wr_rx_sges = kcalloc(SMC_WR_BUF_CNT * 3,
 				   sizeof(link->wr_rx_sges[0]),
 				   GFP_KERNEL);
···
 	kfree(link->wr_rx_sges);
 no_mem_wr_tx_sges:
 	kfree(link->wr_tx_sges);
+no_mem_wr_tx_rdma_sges:
+	kfree(link->wr_tx_rdma_sges);
+no_mem_wr_tx_rdmas:
+	kfree(link->wr_tx_rdmas);
 no_mem_wr_rx_ibs:
 	kfree(link->wr_rx_ibs);
 no_mem_wr_tx_ibs:

net/smc/smc_wr.h

···
 
 int smc_wr_tx_get_free_slot(struct smc_link *link, smc_wr_tx_handler handler,
 			    struct smc_wr_buf **wr_buf,
+			    struct smc_rdma_wr **wrs,
 			    struct smc_wr_tx_pend_priv **wr_pend_priv);
 int smc_wr_tx_put_slot(struct smc_link *link,
 		       struct smc_wr_tx_pend_priv *wr_pend_priv);

net/socket.c

···
 EXPORT_SYMBOL(dlci_ioctl_set);
 
 static long sock_do_ioctl(struct net *net, struct socket *sock,
-			  unsigned int cmd, unsigned long arg,
-			  unsigned int ifreq_size)
+			  unsigned int cmd, unsigned long arg)
 {
 	int err;
 	void __user *argp = (void __user *)arg;
···
 	} else {
 		struct ifreq ifr;
 		bool need_copyout;
-		if (copy_from_user(&ifr, argp, ifreq_size))
+		if (copy_from_user(&ifr, argp, sizeof(struct ifreq)))
 			return -EFAULT;
 		err = dev_ioctl(net, cmd, &ifr, &need_copyout);
 		if (!err && need_copyout)
-			if (copy_to_user(argp, &ifr, ifreq_size))
+			if (copy_to_user(argp, &ifr, sizeof(struct ifreq)))
 				return -EFAULT;
 	}
 	return err;
···
 			err = open_related_ns(&net->ns, get_net_ns);
 			break;
 		default:
-			err = sock_do_ioctl(net, sock, cmd, arg,
-					    sizeof(struct ifreq));
+			err = sock_do_ioctl(net, sock, cmd, arg);
 			break;
 		}
 	return err;
···
 	int err;
 
 	set_fs(KERNEL_DS);
-	err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv,
-			    sizeof(struct compat_ifreq));
+	err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv);
 	set_fs(old_fs);
 	if (!err)
 		err = compat_put_timeval(&ktv, up);
···
 	int err;
 
 	set_fs(KERNEL_DS);
-	err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts,
-			    sizeof(struct compat_ifreq));
+	err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts);
 	set_fs(old_fs);
 	if (!err)
 		err = compat_put_timespec(&kts, up);
···
 	return dev_ioctl(net, cmd, &ifreq, NULL);
 }
 
+static int compat_ifreq_ioctl(struct net *net, struct socket *sock,
+			      unsigned int cmd,
+			      struct compat_ifreq __user *uifr32)
+{
+	struct ifreq __user *uifr;
+	int err;
+
+	/* Handle the fact that while struct ifreq has the same *layout* on
+	 * 32/64 for everything but ifreq::ifru_ifmap and ifreq::ifru_data,
+	 * which are handled elsewhere, it still has different *size* due to
+	 * ifreq::ifru_ifmap (which is 16 bytes on 32 bit, 24 bytes on 64-bit,
+	 * resulting in struct ifreq being 32 and 40 bytes respectively).
+	 * As a result, if the struct happens to be at the end of a page and
+	 * the next page isn't readable/writable, we get a fault. To prevent
+	 * that, copy back and forth to the full size.
+	 */
+
+	uifr = compat_alloc_user_space(sizeof(*uifr));
+	if (copy_in_user(uifr, uifr32, sizeof(*uifr32)))
+		return -EFAULT;
+
+	err = sock_do_ioctl(net, sock, cmd, (unsigned long)uifr);
+
+	if (!err) {
+		switch (cmd) {
+		case SIOCGIFFLAGS:
+		case SIOCGIFMETRIC:
+		case SIOCGIFMTU:
+		case SIOCGIFMEM:
+		case SIOCGIFHWADDR:
+		case SIOCGIFINDEX:
+		case SIOCGIFADDR:
+		case SIOCGIFBRDADDR:
+		case SIOCGIFDSTADDR:
+		case SIOCGIFNETMASK:
+		case SIOCGIFPFLAGS:
+		case SIOCGIFTXQLEN:
+		case SIOCGMIIPHY:
+		case SIOCGMIIREG:
+		case SIOCGIFNAME:
+			if (copy_in_user(uifr32, uifr, sizeof(*uifr32)))
+				err = -EFAULT;
+			break;
+		}
+	}
+	return err;
+}
+
 static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
 			struct compat_ifreq __user *uifr32)
 {
···
 	}
 
 	set_fs(KERNEL_DS);
-	ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r,
-			    sizeof(struct compat_ifreq));
+	ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
 	set_fs(old_fs);
 
 out:
···
 	case SIOCSIFTXQLEN:
 	case SIOCBRADDIF:
 	case SIOCBRDELIF:
+	case SIOCGIFNAME:
 	case SIOCSIFNAME:
 	case SIOCGMIIPHY:
 	case SIOCGMIIREG:
 	case SIOCSMIIREG:
-	case SIOCSARP:
-	case SIOCGARP:
-	case SIOCDARP:
-	case SIOCATMARK:
 	case SIOCBONDENSLAVE:
 	case SIOCBONDRELEASE:
 	case SIOCBONDSETHWADDR:
 	case SIOCBONDCHANGEACTIVE:
-	case SIOCGIFNAME:
-		return sock_do_ioctl(net, sock, cmd, arg,
-				     sizeof(struct compat_ifreq));
+		return compat_ifreq_ioctl(net, sock, cmd, argp);
+
+	case SIOCSARP:
+	case SIOCGARP:
+	case SIOCDARP:
+	case SIOCATMARK:
+		return sock_do_ioctl(net, sock, cmd, arg);
 	}
 
 	return -ENOIOCTLCMD;

net/sunrpc/xprtrdma/svc_rdma_sendto.c

···
 				      DMA_TO_DEVICE);
 }
 
+/* If the xdr_buf has more elements than the device can
+ * transmit in a single RDMA Send, then the reply will
+ * have to be copied into a bounce buffer.
+ */
+static bool svc_rdma_pull_up_needed(struct svcxprt_rdma *rdma,
+				    struct xdr_buf *xdr,
+				    __be32 *wr_lst)
+{
+	int elements;
+
+	/* xdr->head */
+	elements = 1;
+
+	/* xdr->pages */
+	if (!wr_lst) {
+		unsigned int remaining;
+		unsigned long pageoff;
+
+		pageoff = xdr->page_base & ~PAGE_MASK;
+		remaining = xdr->page_len;
+		while (remaining) {
+			++elements;
+			remaining -= min_t(u32, PAGE_SIZE - pageoff,
+					   remaining);
+			pageoff = 0;
+		}
+	}
+
+	/* xdr->tail */
+	if (xdr->tail[0].iov_len)
+		++elements;
+
+	/* assume 1 SGE is needed for the transport header */
+	return elements >= rdma->sc_max_send_sges;
+}
+
+/* The device is not capable of sending the reply directly.
+ * Assemble the elements of @xdr into the transport header
+ * buffer.
+ */
+static int svc_rdma_pull_up_reply_msg(struct svcxprt_rdma *rdma,
+				      struct svc_rdma_send_ctxt *ctxt,
+				      struct xdr_buf *xdr, __be32 *wr_lst)
+{
+	unsigned char *dst, *tailbase;
+	unsigned int taillen;
+
+	dst = ctxt->sc_xprt_buf;
+	dst += ctxt->sc_sges[0].length;
+
+	memcpy(dst, xdr->head[0].iov_base, xdr->head[0].iov_len);
+	dst += xdr->head[0].iov_len;
+
+	tailbase = xdr->tail[0].iov_base;
+	taillen = xdr->tail[0].iov_len;
+	if (wr_lst) {
+		u32 xdrpad;
+
+		xdrpad = xdr_padsize(xdr->page_len);
+		if (taillen && xdrpad) {
+			tailbase += xdrpad;
+			taillen -= xdrpad;
+		}
+	} else {
+		unsigned int len, remaining;
+		unsigned long pageoff;
+		struct page **ppages;
+
+		ppages = xdr->pages + (xdr->page_base >> PAGE_SHIFT);
+		pageoff = xdr->page_base & ~PAGE_MASK;
+		remaining = xdr->page_len;
+		while (remaining) {
+			len = min_t(u32, PAGE_SIZE - pageoff, remaining);
+
+			memcpy(dst, page_address(*ppages), len);
+			remaining -= len;
+			dst += len;
+			pageoff = 0;
+		}
+	}
+
+	if (taillen)
+		memcpy(dst, tailbase, taillen);
+
+	ctxt->sc_sges[0].length += xdr->len;
+	ib_dma_sync_single_for_device(rdma->sc_pd->device,
+				      ctxt->sc_sges[0].addr,
+				      ctxt->sc_sges[0].length,
+				      DMA_TO_DEVICE);
+
+	return 0;
+}
+
 /* svc_rdma_map_reply_msg - Map the buffer holding RPC message
  * @rdma: controlling transport
  * @ctxt: send_ctxt for the Send WR
···
 	u32 xdr_pad;
 	int ret;
 
-	if (++ctxt->sc_cur_sge_no >= rdma->sc_max_send_sges)
-		return -EIO;
+	if (svc_rdma_pull_up_needed(rdma, xdr, wr_lst))
+		return svc_rdma_pull_up_reply_msg(rdma, ctxt, xdr, wr_lst);
+
+	++ctxt->sc_cur_sge_no;
 	ret = svc_rdma_dma_map_buf(rdma, ctxt,
 				   xdr->head[0].iov_base,
 				   xdr->head[0].iov_len);
···
 	while (remaining) {
 		len = min_t(u32, PAGE_SIZE - page_off, remaining);
 
-		if (++ctxt->sc_cur_sge_no >= rdma->sc_max_send_sges)
-			return -EIO;
+		++ctxt->sc_cur_sge_no;
 		ret = svc_rdma_dma_map_page(rdma, ctxt, *ppages++,
 					    page_off, len);
 		if (ret < 0)
···
 	len = xdr->tail[0].iov_len;
 tail:
 	if (len) {
-		if (++ctxt->sc_cur_sge_no >= rdma->sc_max_send_sges)
-			return -EIO;
+		++ctxt->sc_cur_sge_no;
 		ret = svc_rdma_dma_map_buf(rdma, ctxt, base, len);
 		if (ret < 0)
 			return ret;

net/sunrpc/xprtrdma/svc_rdma_transport.c

···
 	/* Transport header, head iovec, tail iovec */
 	newxprt->sc_max_send_sges = 3;
 	/* Add one SGE per page list entry */
-	newxprt->sc_max_send_sges += svcrdma_max_req_size / PAGE_SIZE;
-	if (newxprt->sc_max_send_sges > dev->attrs.max_send_sge) {
-		pr_err("svcrdma: too few Send SGEs available (%d needed)\n",
-		       newxprt->sc_max_send_sges);
-		goto errout;
-	}
+	newxprt->sc_max_send_sges += (svcrdma_max_req_size / PAGE_SIZE) + 1;
+	if (newxprt->sc_max_send_sges > dev->attrs.max_send_sge)
+		newxprt->sc_max_send_sges = dev->attrs.max_send_sge;
 	newxprt->sc_max_req_size = svcrdma_max_req_size;
 	newxprt->sc_max_requests = svcrdma_max_requests;
 	newxprt->sc_max_bc_requests = svcrdma_max_bc_requests;

net/tls/tls_sw.c

···
 	struct scatterlist *sge = sk_msg_elem(msg_en, start);
 	int rc;
 
+	memcpy(rec->iv_data, tls_ctx->tx.iv, sizeof(rec->iv_data));
+
 	sge->offset += tls_ctx->tx.prepend_size;
 	sge->length -= tls_ctx->tx.prepend_size;
 
···
 	aead_request_set_ad(aead_req, TLS_AAD_SPACE_SIZE);
 	aead_request_set_crypt(aead_req, rec->sg_aead_in,
 			       rec->sg_aead_out,
-			       data_len, tls_ctx->tx.iv);
+			       data_len, rec->iv_data);
 
 	aead_request_set_callback(aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG,
 				  tls_encrypt_done, sk);
···
 	if (atomic_read(&ctx->encrypt_pending))
 		crypto_wait_req(-EINPROGRESS, &ctx->async_wait);
 
+	release_sock(sk);
 	cancel_delayed_work_sync(&ctx->tx_work.work);
+	lock_sock(sk);
 
 	/* Tx whatever records we can transmit and abandon the rest */
 	tls_tx_records(sk, -1);

net/vmw_vsock/virtio_transport.c

···
 {
 	struct virtio_vsock *vsock = virtio_vsock_get();
 
+	if (!vsock)
+		return VMADDR_CID_ANY;
+
 	return vsock->guest_cid;
 }
 
···
 
 	virtio_vsock_update_guest_cid(vsock);
 
-	ret = vsock_core_init(&virtio_transport.transport);
-	if (ret < 0)
-		goto out_vqs;
-
 	vsock->rx_buf_nr = 0;
 	vsock->rx_buf_max_nr = 0;
 	atomic_set(&vsock->queued_replies, 0);
···
 	mutex_unlock(&the_virtio_vsock_mutex);
 	return 0;
 
-out_vqs:
-	vsock->vdev->config->del_vqs(vsock->vdev);
 out:
 	kfree(vsock);
 	mutex_unlock(&the_virtio_vsock_mutex);
···
 	flush_work(&vsock->tx_work);
 	flush_work(&vsock->event_work);
 	flush_work(&vsock->send_pkt_work);
+
+	/* Reset all connected sockets when the device disappear */
+	vsock_for_each_connected_socket(virtio_vsock_reset_sock);
 
 	vdev->config->reset(vdev);
 
···
 
 	mutex_lock(&the_virtio_vsock_mutex);
 	the_virtio_vsock = NULL;
-	vsock_core_exit();
 	mutex_unlock(&the_virtio_vsock_mutex);
 
 	vdev->config->del_vqs(vdev);
···
 	virtio_vsock_workqueue = alloc_workqueue("virtio_vsock", 0, 0);
 	if (!virtio_vsock_workqueue)
 		return -ENOMEM;
+
 	ret = register_virtio_driver(&virtio_vsock_driver);
 	if (ret)
-		destroy_workqueue(virtio_vsock_workqueue);
+		goto out_wq;
+
+	ret = vsock_core_init(&virtio_transport.transport);
+	if (ret)
+		goto out_vdr;
+
+	return 0;
+
+out_vdr:
+	unregister_virtio_driver(&virtio_vsock_driver);
+out_wq:
+	destroy_workqueue(virtio_vsock_workqueue);
 	return ret;
+
 }
 
 static void __exit virtio_vsock_exit(void)
 {
+	vsock_core_exit();
 	unregister_virtio_driver(&virtio_vsock_driver);
 	destroy_workqueue(virtio_vsock_workqueue);
 }

net/wireless/ap.c

···
 		cfg80211_sched_dfs_chan_update(rdev);
 	}
 
+	schedule_work(&cfg80211_disconnect_work);
+
 	return err;
 }
 

net/wireless/core.h

···
 bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
 				u32 center_freq_khz, u32 bw_khz);
 
+extern struct work_struct cfg80211_disconnect_work;
+
 /**
  * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
  * @wiphy: the wiphy to validate against

net/wireless/sme.c

···
 	rtnl_unlock();
 }
 
-static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
+DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
 
 
 /*

net/xfrm/xfrm_policy.c

···
 	mutex_unlock(&hash_resize_mutex);
 }
 
-static void xfrm_hash_reset_inexact_table(struct net *net)
-{
-	struct xfrm_pol_inexact_bin *b;
-
-	lockdep_assert_held(&net->xfrm.xfrm_policy_lock);
-
-	list_for_each_entry(b, &net->xfrm.inexact_bins, inexact_bins)
-		INIT_HLIST_HEAD(&b->hhead);
-}
-
 /* Make sure *pol can be inserted into fastbin.
  * Useful to check that later insert requests will be sucessful
  * (provided xfrm_policy_lock is held throughout).
···
 					      u16 family)
 {
 	unsigned int matched_s, matched_d;
-	struct hlist_node *newpos = NULL;
 	struct xfrm_policy *policy, *p;
 
 	matched_s = 0;
 	matched_d = 0;
 
 	list_for_each_entry_reverse(policy, &net->xfrm.policy_all, walk.all) {
+		struct hlist_node *newpos = NULL;
 		bool matches_s, matches_d;
 
 		if (!policy->bydst_reinsert)
···
 
 		policy->bydst_reinsert = false;
 		hlist_for_each_entry(p, &n->hhead, bydst) {
-			if (policy->priority >= p->priority)
+			if (policy->priority > p->priority)
+				newpos = &p->bydst;
+			else if (policy->priority == p->priority &&
+				 policy->pos > p->pos)
 				newpos = &p->bydst;
 			else
 				break;
 		}
 
 		if (newpos)
-			hlist_add_behind(&policy->bydst, newpos);
+			hlist_add_behind_rcu(&policy->bydst, newpos);
 		else
-			hlist_add_head(&policy->bydst, &n->hhead);
+			hlist_add_head_rcu(&policy->bydst, &n->hhead);
 
 		/* paranoia checks follow.
 		 * Check that the reinserted policy matches at least
···
 					      struct rb_root *new,
 					      u16 family)
 {
-	struct rb_node **p, *parent = NULL;
 	struct xfrm_pol_inexact_node *node;
+	struct rb_node **p, *parent;
 
 	/* we should not have another subtree here */
 	WARN_ON_ONCE(!RB_EMPTY_ROOT(&n->root));
-
+restart:
+	parent = NULL;
 	p = &new->rb_node;
 	while (*p) {
 		u8 prefixlen;
···
 		} else {
 			struct xfrm_policy *tmp;
 
-			hlist_for_each_entry(tmp, &node->hhead, bydst)
+			hlist_for_each_entry(tmp, &n->hhead, bydst) {
 				tmp->bydst_reinsert = true;
-			hlist_for_each_entry(tmp, &n->hhead, bydst)
-				tmp->bydst_reinsert = true;
+				hlist_del_rcu(&tmp->bydst);
+			}
 
-			INIT_HLIST_HEAD(&node->hhead);
 			xfrm_policy_inexact_list_reinsert(net, node, family);
 
 			if (node->prefixlen == n->prefixlen) {
···
 			kfree_rcu(n, rcu);
 			n = node;
 			n->prefixlen = prefixlen;
-			*p = new->rb_node;
-			parent = NULL;
+			goto restart;
 		}
 	}
 
···
 						  family);
 	}
 
-	hlist_for_each_entry(tmp, &v->hhead, bydst)
+	hlist_for_each_entry(tmp, &v->hhead, bydst) {
 		tmp->bydst_reinsert = true;
-	hlist_for_each_entry(tmp, &n->hhead, bydst)
-		tmp->bydst_reinsert = true;
+		hlist_del_rcu(&tmp->bydst);
+	}
 
-	INIT_HLIST_HEAD(&n->hhead);
 	xfrm_policy_inexact_list_reinsert(net, n, family);
 }
 
···
 	} while (read_seqretry(&net->xfrm.policy_hthresh.lock, seq));
 
 	spin_lock_bh(&net->xfrm.xfrm_policy_lock);
+	write_seqcount_begin(&xfrm_policy_hash_generation);
 
 	/* make sure that we can insert the indirect policies again before
 	 * we start with destructive action.
···
 	}
 
 	/* reset the bydst and inexact table in all directions */
-	xfrm_hash_reset_inexact_table(net);
-
 	for (dir = 0; dir < XFRM_POLICY_MAX; dir++) {
-		INIT_HLIST_HEAD(&net->xfrm.policy_inexact[dir]);
+		struct hlist_node *n;
+
+		hlist_for_each_entry_safe(policy, n,
+					  &net->xfrm.policy_inexact[dir],
+					  bydst_inexact_list)
+			hlist_del_init(&policy->bydst_inexact_list);
+
 		hmask = net->xfrm.policy_bydst[dir].hmask;
 		odst = net->xfrm.policy_bydst[dir].table;
 		for (i = hmask; i >= 0; i--)
···
 		newpos = NULL;
 		chain = policy_hash_bysel(net, &policy->selector,
 					  policy->family, dir);
+
+		hlist_del_rcu(&policy->bydst);
+
 		if (!chain) {
 			void *p = xfrm_policy_inexact_insert(policy, dir, 0);
 
···
 
 out_unlock:
 	__xfrm_policy_inexact_flush(net);
+	write_seqcount_end(&xfrm_policy_hash_generation);
 	spin_unlock_bh(&net->xfrm.xfrm_policy_lock);
 
 	mutex_unlock(&hash_resize_mutex);
···
 		dst_copy_metrics(dst1, dst);
 
 		if (xfrm[i]->props.mode != XFRM_MODE_TRANSPORT) {
-			__u32 mark = xfrm_smark_get(fl->flowi_mark, xfrm[i]);
+			__u32 mark = 0;
+
+			if (xfrm[i]->props.smark.v || xfrm[i]->props.smark.m)
+				mark = xfrm_smark_get(fl->flowi_mark, xfrm[i]);
 
 			family = xfrm[i]->props.family;
 			dst = xfrm_dst_lookup(xfrm[i], tos, fl->flowi_oif,

net/xfrm/xfrm_user.c

···
 		if (!ut[i].family)
 			ut[i].family = family;
 
-		if ((ut[i].mode == XFRM_MODE_TRANSPORT) &&
-		    (ut[i].family != prev_family))
-			return -EINVAL;
-
+		switch (ut[i].mode) {
+		case XFRM_MODE_TUNNEL:
+		case XFRM_MODE_BEET:
+			break;
+		default:
+			if (ut[i].family != prev_family)
+				return -EINVAL;
+			break;
+		}
 		if (ut[i].mode >= XFRM_MODE_MAX)
 			return -EINVAL;
 

samples/mei/mei-amt-version.c

···
 
 	me->verbose = verbose;
 
-	me->fd = open("/dev/mei", O_RDWR);
+	me->fd = open("/dev/mei0", O_RDWR);
 	if (me->fd == -1) {
 		mei_err(me, "Cannot establish a handle to the Intel MEI driver\n");
 		goto err;

security/apparmor/domain.c

···
 			new = aa_label_merge(label, target, GFP_KERNEL);
 		if (IS_ERR_OR_NULL(new)) {
 			info = "failed to build target label";
-			error = PTR_ERR(new);
+			if (!new)
+				error = -ENOMEM;
+			else
+				error = PTR_ERR(new);
 			new = NULL;
 			perms.allow = 0;
 			goto audit;

security/apparmor/lsm.c

···
 	return apparmor_ip_postroute(priv, skb, state);
 }
 
+#if IS_ENABLED(CONFIG_IPV6)
 static unsigned int apparmor_ipv6_postroute(void *priv,
 					    struct sk_buff *skb,
 					    const struct nf_hook_state *state)
 {
 	return apparmor_ip_postroute(priv, skb, state);
 }
+#endif
 
 static const struct nf_hook_ops apparmor_nf_ops[] = {
 	{

sound/core/pcm_lib.c

···
 	return 0;
 }
 
+/* allow waiting for a capture stream that hasn't been started */
+#if IS_ENABLED(CONFIG_SND_PCM_OSS)
+#define wait_capture_start(substream)	((substream)->oss.oss)
+#else
+#define wait_capture_start(substream)	false
+#endif
+
 /* the common loop for read/write data */
 snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream,
 				     void *data, bool interleaved,
···
 			err = snd_pcm_start(substream);
 			if (err < 0)
 				goto _end_unlock;
-		} else {
+		} else if (!wait_capture_start(substream)) {
 			/* nothing to do */
 			err = 0;
 			goto _end_unlock;

sound/pci/hda/hda_bind.c

···
 	err = snd_hda_codec_build_controls(codec);
 	if (err < 0)
 		goto error_module;
-	if (codec->card->registered) {
+	/* only register after the bus probe finished; otherwise it's racy */
+	if (!codec->bus->bus_probing && codec->card->registered) {
 		err = snd_card_register(codec->card);
 		if (err < 0)
 			goto error_module;

sound/pci/hda/hda_intel.c

···
 	int dev = chip->dev_index;
 	int err;
 
+	to_hda_bus(bus)->bus_probing = 1;
 	hda->probe_continued = 1;
 
 	/* bind with i915 if needed */
···
 	if (err < 0)
 		hda->init_failed = 1;
 	complete_all(&hda->probe_wait);
+	to_hda_bus(bus)->bus_probing = 0;
 	return err;
 }
 

sound/pci/hda/patch_ca0132.c

···
 	ca0132_exit_chip(codec);
 
 	snd_hda_power_down(codec);
-	if (IS_ENABLED(CONFIG_PCI) && spec->mem_base)
+#ifdef CONFIG_PCI
+	if (spec->mem_base)
 		pci_iounmap(codec->bus->pci, spec->mem_base);
+#endif
 	kfree(spec->spec_init_verbs);
 	kfree(codec->spec);
 }

sound/pci/hda/patch_realtek.c

···
 	int codec_variant;	/* flag for other variants */
 	unsigned int has_alc5505_dsp:1;
 	unsigned int no_depop_delay:1;
+	unsigned int done_hp_init:1;
 
 	/* for PLL fix */
 	hda_nid_t pll_nid;
···
 	}
 }
 
+/* get a primary headphone pin if available */
+static hda_nid_t alc_get_hp_pin(struct alc_spec *spec)
+{
+	if (spec->gen.autocfg.hp_pins[0])
+		return spec->gen.autocfg.hp_pins[0];
+	if (spec->gen.autocfg.line_out_type == AC_JACK_HP_OUT)
+		return spec->gen.autocfg.line_out_pins[0];
+	return 0;
+}
 
 /*
  * Realtek SSID verification
···
 	 * 15   : 1 --> enable the function "Mute internal speaker
 	 *	        when the external headphone out jack is plugged"
 	 */
-	if (!spec->gen.autocfg.hp_pins[0] &&
-	    !(spec->gen.autocfg.line_out_pins[0] &&
-	      spec->gen.autocfg.line_out_type == AUTO_PIN_HP_OUT)) {
+	if (!alc_get_hp_pin(spec)) {
 		hda_nid_t nid;
 		tmp = (ass >> 11) & 0x3;	/* HP to chassis */
 		nid = ports[tmp];
···
 static void alc282_init(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp_pin_sense;
 	int coef78;
 
···
 static void alc282_shutup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp_pin_sense;
 	int coef78;
 
···
 static void alc283_init(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp_pin_sense;
-
-	if (!spec->gen.autocfg.hp_outs) {
-		if (spec->gen.autocfg.line_out_type == AC_JACK_HP_OUT)
-			hp_pin = spec->gen.autocfg.line_out_pins[0];
-	}
 
 	alc283_restore_default_value(codec);
 
···
 static void alc283_shutup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp_pin_sense;
-
-	if (!spec->gen.autocfg.hp_outs) {
-		if (spec->gen.autocfg.line_out_type == AC_JACK_HP_OUT)
-			hp_pin = spec->gen.autocfg.line_out_pins[0];
-	}
 
 	if (!hp_pin) {
 		alc269_shutup(codec);
···
 static void alc256_init(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp_pin_sense;
 
 	if (!hp_pin)
···
 static void alc256_shutup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp_pin_sense;
 
 	if (!hp_pin) {
···
 static void alc225_init(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp1_pin_sense, hp2_pin_sense;
 
 	if (!hp_pin)
···
 static void alc225_shutup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp1_pin_sense, hp2_pin_sense;
 
 	if (!hp_pin) {
···
 static void alc_default_init(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp_pin_sense;
 
 	if (!hp_pin)
···
 static void alc_default_shutup(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 	bool hp_pin_sense;
 
 	if (!hp_pin) {
···
 
 	alc_auto_setup_eapd(codec, false);
 	snd_hda_shutup_pins(codec);
+}
+
+static void alc294_hp_init(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
+	int i, val;
+
+	if (!hp_pin)
+		return;
+
+	snd_hda_codec_write(codec, hp_pin, 0,
+			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+
+	msleep(100);
+
+	snd_hda_codec_write(codec, hp_pin, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0);
+
+	alc_update_coef_idx(codec, 0x6f, 0x000f, 0);/* Set HP depop to manual mode */
+	alc_update_coefex_idx(codec, 0x58, 0x00, 0x8000, 0x8000); /* HP depop procedure start */
+
+	/* Wait for depop procedure finish  */
+	val = alc_read_coefex_idx(codec, 0x58, 0x01);
+	for (i = 0; i < 20 && val & 0x0080; i++) {
+		msleep(50);
+		val = alc_read_coefex_idx(codec, 0x58, 0x01);
+	}
+	/* Set HP depop to auto mode */
+	alc_update_coef_idx(codec, 0x6f, 0x000f, 0x000b);
+	msleep(50);
+}
+
+static void alc294_init(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+
+	if (!spec->done_hp_init) {
+		alc294_hp_init(codec);
+		spec->done_hp_init = true;
+	}
+	alc_default_init(codec);
 }
 
 static void alc5505_coef_set(struct hda_codec *codec, unsigned int index_reg,
···
 	struct alc_spec *spec = codec->spec;
 
 	hda_nid_t mux_pin = spec->gen.imux_pins[spec->gen.cur_mux[0]];
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
+	hda_nid_t hp_pin = alc_get_hp_pin(spec);
 
 	int new_headset_mode;
 
···
 static void alc_shutup_dell_xps13(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	int hp_pin = spec->gen.autocfg.hp_pins[0];
+	int hp_pin = alc_get_hp_pin(spec);
 
 	/* Prevent pop noises when headphones are plugged in */
 	snd_hda_codec_write(codec, hp_pin, 0,
···
 
 	if (action == HDA_FIXUP_ACT_PROBE) {
 		int mic_pin = find_ext_mic_pin(codec);
-		int hp_pin = spec->gen.autocfg.hp_pins[0];
+		int hp_pin = alc_get_hp_pin(spec);
 
 		if (snd_BUG_ON(!mic_pin || !hp_pin))
 			return;
···
 	ALC294_FIXUP_ASUS_HEADSET_MIC,
 	ALC294_FIXUP_ASUS_SPK,
 	ALC225_FIXUP_HEADSET_JACK,
+	ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
···
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_headset_jack,
 	},
+	[ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x1a, 0x01a1913c }, /* use as headset mic, without its own jack detect */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
···
 	SND_PCI_QUIRK(0x1458, 0xfa53, "Gigabyte BXBT-2807", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1462, 0xb120, "MSI Cubi MS-B120", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1462, 0xb171, "Cubi N 8GL (MS-B171)", ALC283_FIXUP_HEADSET_MIC),
+	SND_PCI_QUIRK(0x1558, 0x1325, "System76 Darter Pro (darp5)", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x17aa, 0x1036, "Lenovo P520", ALC233_FIXUP_LENOVO_MULTI_CODECS),
 	SND_PCI_QUIRK(0x17aa, 0x20f2, "Thinkpad SL410/510", ALC269_FIXUP_SKU_IGNORE),
 	SND_PCI_QUIRK(0x17aa, 0x215e, "Thinkpad L512", ALC269_FIXUP_SKU_IGNORE),
···
 	alc_update_coef_idx(codec, 0x4, 0, 1<<11);
 }
 
-static void alc294_hp_init(struct hda_codec *codec)
-{
-	struct alc_spec *spec = codec->spec;
-	hda_nid_t hp_pin = spec->gen.autocfg.hp_pins[0];
-	int i, val;
-
-	if (!hp_pin)
-		return;
-
-	snd_hda_codec_write(codec, hp_pin, 0,
-			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
-
-	msleep(100);
-
-	snd_hda_codec_write(codec, hp_pin, 0,
-			    AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0);
-
-	alc_update_coef_idx(codec, 0x6f, 0x000f, 0);/* Set HP depop to manual mode */
-	alc_update_coefex_idx(codec, 0x58, 0x00, 0x8000, 0x8000); /* HP depop procedure start */
-
-	/* Wait for depop procedure finish  */
-	val = alc_read_coefex_idx(codec, 0x58, 0x01);
-	for (i = 0; i < 20 && val & 0x0080; i++) {
-		msleep(50);
-		val = alc_read_coefex_idx(codec, 0x58, 0x01);
-	}
-	/* Set HP depop to auto mode */
-	alc_update_coef_idx(codec, 0x6f, 0x000f, 0x000b);
-	msleep(50);
-}
-
 /*
  */
 static int patch_alc269(struct hda_codec *codec)
···
 		spec->codec_variant = ALC269_TYPE_ALC294;
 		spec->gen.mixer_nid = 0; /* ALC2x4 does not have any loopback mixer path */
 		alc_update_coef_idx(codec, 0x6b, 0x0018, (1<<4) | (1<<3)); /* UAJ MIC Vref control by verb */
-		alc294_hp_init(codec);
+		spec->init_hook = alc294_init;
 		break;
 	case 0x10ec0300:
 		spec->codec_variant = ALC269_TYPE_ALC300;
···
 		spec->codec_variant = ALC269_TYPE_ALC700;
 		spec->gen.mixer_nid = 0; /* ALC700 does not have any loopback mixer path */
 		alc_update_coef_idx(codec, 0x4a, 1 << 15, 0); /* Combo jack auto trigger control */
-		alc294_hp_init(codec);
+		spec->init_hook = alc294_init;
 		break;
 
 	}

sound/usb/quirks.c

···
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 		break;
 
+	case USB_ID(0x10cb, 0x0103): /* The Bit Opus #3; with fp->dsd_raw */
 	case USB_ID(0x152a, 0x85de): /* SMSL D1 DAC */
 	case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */
 	case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */
···
 	case 0x20b1:  /* XMOS based devices */
 	case 0x152a:  /* Thesycon devices */
 	case 0x25ce:  /* Mytek devices */
+	case 0x2ab6:  /* T+A devices */
 		if (fp->dsd_raw)
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 		break;

tools/bpf/bpftool/common.c

···
 	snprintf(path, sizeof(path), "/proc/self/fdinfo/%d", fd);
 
 	fdi = fopen(path, "r");
-	if (!fdi) {
-		p_err("can't open fdinfo: %s", strerror(errno));
+	if (!fdi)
 		return NULL;
-	}
 
 	while ((n = getline(&line, &line_n, fdi)) > 0) {
 		char *value;
···
 
 		value = strchr(line, '\t');
 		if (!value || !value[1]) {
-			p_err("malformed fdinfo!?");
 			free(line);
 			return NULL;
 		}
···
 		return line;
 	}
 
-	p_err("key '%s' not found in fdinfo", key);
 	free(line);
 	fclose(fdi);
 	return NULL;

tools/bpf/bpftool/map.c

···
 	return argv + i;
 }
 
+/* on per cpu maps we must copy the provided value on all value instances */
+static void fill_per_cpu_value(struct bpf_map_info *info, void *value)
+{
+	unsigned int i, n, step;
+
+	if (!map_is_per_cpu(info->type))
+		return;
+
+	n = get_possible_cpus();
+	step = round_up(info->value_size, 8);
+	for (i = 1; i < n; i++)
+		memcpy(value + i * step, value, info->value_size);
+}
+
 static int parse_elem(char **argv, struct bpf_map_info *info,
 		      void *key, void *value, __u32 key_size, __u32 value_size,
 		      __u32 *flags, __u32 **value_fd)
···
 			argv = parse_bytes(argv, "value", value, value_size);
 			if (!argv)
 				return -1;
+
+			fill_per_cpu_value(info, value);
 		}
 
 		return parse_elem(argv, info, key, NULL, key_size, value_size,
···
 				jsonw_uint_field(json_wtr, "owner_prog_type",
 						 prog_type);
 		}
-		if (atoi(owner_jited))
-			jsonw_bool_field(json_wtr, "owner_jited", true);
-		else
-			jsonw_bool_field(json_wtr, "owner_jited", false);
+		if (owner_jited)
+			jsonw_bool_field(json_wtr, "owner_jited",
+					 !!atoi(owner_jited));
 
 		free(owner_prog_type);
 		free(owner_jited);
···
 		char *owner_prog_type = get_fdinfo(fd, "owner_prog_type");
 		char *owner_jited = get_fdinfo(fd, "owner_jited");
 
-		printf("\n\t");
+		if (owner_prog_type || owner_jited)
+			printf("\n\t");
 		if (owner_prog_type) {
 			unsigned int prog_type = atoi(owner_prog_type);
 
···
 			else
 				printf("owner_prog_type %d  ", prog_type);
 		}
-		if (atoi(owner_jited))
-			printf("owner jited");
-		else
-			printf("owner not jited");
+		if (owner_jited)
+			printf("owner%s jited",
+			       atoi(owner_jited) ? "" : " not");
 
 		free(owner_prog_type);
 		free(owner_jited);

tools/bpf/bpftool/prog.c

···
 
 static int prog_fd_by_tag(unsigned char *tag)
 {
-	struct bpf_prog_info info = {};
-	__u32 len = sizeof(info);
 	unsigned int id = 0;
 	int err;
 	int fd;
 
 	while (true) {
+		struct bpf_prog_info info = {};
+		__u32 len = sizeof(info);
+
 		err = bpf_prog_get_next_id(id, &id);
 		if (err) {
 			p_err("%s", strerror(errno));

tools/iio/iio_generic_buffer.c

···
 
 int main(int argc, char **argv)
 {
-	unsigned long long num_loops = 2;
+	long long num_loops = 2;
 	unsigned long timedelay = 1000000;
 	unsigned long buf_len = 128;
 

tools/include/uapi/linux/in.h

···
 #define	IN_MULTICAST(a)		IN_CLASSD(a)
 #define	IN_MULTICAST_NET	0xe0000000
 
-#define	IN_BADCLASS(a)		((((long int) (a) ) == 0xffffffff)
+#define	IN_BADCLASS(a)		(((long int) (a) ) == (long int)0xffffffff)
 #define	IN_EXPERIMENTAL(a)	IN_BADCLASS((a))
 
 #define	IN_CLASSE(a)		((((long int) (a)) & 0xf0000000) == 0xf0000000)

tools/perf/Documentation/perf-c2c.txt

···
 The perf c2c tool provides means for Shared Data C2C/HITM analysis. It allows
 you to track down the cacheline contentions.
 
-The tool is based on x86's load latency and precise store facility events
-provided by Intel CPUs. These events provide:
+On x86, the tool is based on load latency and precise store facility events
+provided by Intel CPUs. On PowerPC, the tool uses random instruction sampling
+with thresholding feature.
+
+These events provide:
   - memory address of the access
   - type of the access (load and store details)
   - latency (in cycles) of the load access
···
 
 -l::
 --ldlat::
-	Configure mem-loads latency.
+	Configure mem-loads latency. (x86 only)
 
 -k::
 --all-kernel::
···
   -W,-d,--phys-data,--sample-cpu
 
 Unless specified otherwise with '-e' option, following events are monitored by
-default:
+default on x86:
 
   cpu/mem-loads,ldlat=30/P
   cpu/mem-stores/P
+
+and following on PowerPC:
+
+  cpu/mem-loads/
+  cpu/mem-stores/
 
 User can pass any 'perf record' option behind '--' mark, like (to enable
 callchains and system wide monitoring):

tools/perf/Documentation/perf-mem.txt

···
 	Be more verbose (show counter open errors, etc)
 
 --ldlat <n>::
-	Specify desired latency for loads event.
+	Specify desired latency for loads event. (x86 only)
 
 In addition, for report all perf report options are valid, and for record
 all perf record options.

tools/perf/arch/powerpc/util/Build

···
 libperf-y += sym-handling.o
 libperf-y += kvm-stat.o
 libperf-y += perf_regs.o
+libperf-y += mem-events.o
 
 libperf-$(CONFIG_DWARF) += dwarf-regs.o
 libperf-$(CONFIG_DWARF) += skip-callchain-idx.o

tools/perf/arch/powerpc/util/mem-events.c

···
+// SPDX-License-Identifier: GPL-2.0
+#include "mem-events.h"
+
+/* PowerPC does not support 'ldlat' parameter. */
+char *perf_mem_events__name(int i)
+{
+	if (i == PERF_MEM_EVENTS__LOAD)
+		return (char *) "cpu/mem-loads/";
+
+	return (char *) "cpu/mem-stores/";
+}

tools/perf/builtin-script.c

···
 		.force_header = false,
 	};
 	struct perf_evsel *ev2;
-	static bool init;
 	u64 val;
 
-	if (!init) {
-		perf_stat__init_shadow_stats();
-		init = true;
-	}
 	if (!evsel->stats)
 		perf_evlist__alloc_stats(script->session->evlist, false);
 	if (evsel_script(evsel->leader)->gnum++ == 0)
···
 		return;
 	}
 
-	if (PRINT_FIELD(TRACE)) {
+	if (PRINT_FIELD(TRACE) && sample->raw_data) {
 		event_format__fprintf(evsel->tp_format, sample->cpu,
 				      sample->raw_data, sample->raw_size, fp);
 	}
···
 	int ret;
 
 	signal(SIGINT, sig_handler);
+
+	perf_stat__init_shadow_stats();
 
 	/* override event processing functions */
 	if (script->show_task_events) {

tools/perf/builtin-trace.c

···
 
 static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
 {
-	struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
+	bool found = false;
+	struct perf_evsel *evsel, *tmp;
+	struct parse_events_error err = { .idx = 0, };
+	int ret = parse_events(evlist, "probe:vfs_getname*", &err);
 
-	if (IS_ERR(evsel))
+	if (ret)
 		return false;
 
-	if (perf_evsel__field(evsel, "pathname") == NULL) {
+	evlist__for_each_entry_safe(evlist, evsel, tmp) {
+		if (!strstarts(perf_evsel__name(evsel), "probe:vfs_getname"))
+			continue;
+
+		if (perf_evsel__field(evsel, "pathname")) {
+			evsel->handler = trace__vfs_getname;
+			found = true;
+			continue;
+		}
+
+		list_del_init(&evsel->node);
+		evsel->evlist = NULL;
 		perf_evsel__delete(evsel);
-		return false;
 	}
 
-	evsel->handler = trace__vfs_getname;
-	perf_evlist__add(evlist, evsel);
-	return true;
+	return found;
 }
 
 static struct perf_evsel *perf_evsel__new_pgfault(u64 config)

tools/perf/tests/attr.py

···
 #! /usr/bin/python
 # SPDX-License-Identifier: GPL-2.0
 
+from __future__ import print_function
+
 import os
 import sys
 import glob
···
 import tempfile
 import logging
 import shutil
-import ConfigParser
+
+try:
+    import configparser
+except ImportError:
+    import ConfigParser as configparser
 
 def data_equal(a, b):
     # Allow multiple values in assignment separated by '|'
···
     def equal(self, other):
         for t in Event.terms:
             log.debug("      [%s] %s %s" % (t, self[t], other[t]));
-            if not self.has_key(t) or not other.has_key(t):
+            if t not in self or t not in other:
                 return False
             if not data_equal(self[t], other[t]):
                 return False
         return True
 
     def optional(self):
-        if self.has_key('optional') and self['optional'] == '1':
+        if 'optional' in self and self['optional'] == '1':
             return True
         return False
 
     def diff(self, other):
         for t in Event.terms:
-            if not self.has_key(t) or not other.has_key(t):
+            if t not in self or t not in other:
                 continue
             if not data_equal(self[t], other[t]):
                 log.warning("expected %s=%s, got %s" % (t, self[t], other[t]))
···
 #   - expected values assignments
 class Test(object):
     def __init__(self, path, options):
-        parser = ConfigParser.SafeConfigParser()
+        parser = configparser.SafeConfigParser()
         parser.read(path)
 
         log.warning("running '%s'" % path)
···
         return True
 
     def load_events(self, path, events):
-        parser_event = ConfigParser.SafeConfigParser()
+        parser_event = configparser.SafeConfigParser()
         parser_event.read(path)
 
         # The event record section header contains 'event' word,
···
             # Read parent event if there's any
             if (':' in section):
                 base = section[section.index(':') + 1:]
-                parser_base = ConfigParser.SafeConfigParser()
+                parser_base = configparser.SafeConfigParser()
                 parser_base.read(self.test_dir + '/' + base)
                 base_items = parser_base.items('event')
 
···
     for f in glob.glob(options.test_dir + '/' + options.test):
         try:
             Test(f, options).run()
-        except Unsup, obj:
+        except Unsup as obj:
             log.warning("unsupp  %s" % obj.getMsg())
-        except Notest, obj:
+        except Notest as obj:
             log.warning("skipped %s" % obj.getMsg())
 
 def setup_log(verbose):
···
     parser.add_option("-p", "--perf",
                       action="store", type="string", dest="perf")
     parser.add_option("-v", "--verbose",
-                      action="count", dest="verbose")
+                      default=0, action="count", dest="verbose")
 
     options, args = parser.parse_args()
     if args:
···
     setup_log(options.verbose)
 
     if not options.test_dir:
-        print 'FAILED no -d option specified'
+        print('FAILED no -d option specified')
         sys.exit(-1)
 
     if not options.test:
···
     try:
         run_tests(options)
 
-    except Fail, obj:
-        print "FAILED %s" % obj.getMsg();
+    except Fail as obj:
+        print("FAILED %s" % obj.getMsg())
         sys.exit(-1)
 
     sys.exit(0)

tools/perf/tests/evsel-tp-sched.c

···
 		return -1;
 	}
 
-	is_signed = !!(field->flags | TEP_FIELD_IS_SIGNED);
+	is_signed = !!(field->flags & TEP_FIELD_IS_SIGNED);
 	if (should_be_signed && !is_signed) {
 		pr_debug("%s: \"%s\" signedness(%d) is wrong, should be %d\n",
 			 evsel->name, name, is_signed, should_be_signed);

tools/perf/ui/browsers/annotate.c

···
 	return ret;
 }
 
-static int disasm__cmp(struct annotation_line *a, struct annotation_line *b)
+static double disasm__cmp(struct annotation_line *a, struct annotation_line *b,
+						  int percent_type)
 {
 	int i;
 
 	for (i = 0; i < a->data_nr; i++) {
-		if (a->data[i].percent == b->data[i].percent)
+		if (a->data[i].percent[percent_type] == b->data[i].percent[percent_type])
 			continue;
-		return a->data[i].percent < b->data[i].percent;
+		return a->data[i].percent[percent_type] -
+			   b->data[i].percent[percent_type];
 	}
 	return 0;
 }
 
-static void disasm_rb_tree__insert(struct rb_root *root, struct annotation_line *al)
+static void disasm_rb_tree__insert(struct annotate_browser *browser,
+				struct annotation_line *al)
 {
+	struct rb_root *root = &browser->entries;
 	struct rb_node **p = &root->rb_node;
 	struct rb_node *parent = NULL;
 	struct annotation_line *l;
···
 		parent = *p;
 		l = rb_entry(parent, struct annotation_line, rb_node);
 
-		if (disasm__cmp(al, l))
+		if (disasm__cmp(al, l, browser->opts->percent_type) < 0)
 			p = &(*p)->rb_left;
 		else
 			p = &(*p)->rb_right;
···
 			RB_CLEAR_NODE(&pos->al.rb_node);
 			continue;
 		}
-		disasm_rb_tree__insert(&browser->entries, &pos->al);
+		disasm_rb_tree__insert(browser, &pos->al);
 	}
 	pthread_mutex_unlock(&notes->lock);
 

tools/perf/util/c++/clang.cpp

···
 	}
 	PM.run(*Module);
 
-	return std::move(Buffer);
+	return Buffer;
 }
 
 }

tools/perf/util/cpumap.c

···
 	if (!cpu_list)
 		return cpu_map__read_all_cpu_map();
 
-	if (!isdigit(*cpu_list))
+	/*
+	 * must handle the case of empty cpumap to cover
+	 * TOPOLOGY header for NUMA nodes with no CPU
+	 * ( e.g., because of CPU hotplug)
+	 */
+	if (!isdigit(*cpu_list) && *cpu_list != '\0')
 		goto out;
 
 	while (isdigit(*cpu_list)) {
···
 
 	if (nr_cpus > 0)
 		cpus = cpu_map__trim_new(nr_cpus, tmp_cpus);
-	else
+	else if (*cpu_list != '\0')
 		cpus = cpu_map__default_new();
+	else
+		cpus = cpu_map__dummy_new();
 invalid:
 	free(tmp_cpus);
 out:

tools/perf/util/mem-events.c

···
 static char mem_loads_name[100];
 static bool mem_loads_name__init;
 
-char *perf_mem_events__name(int i)
+char * __weak perf_mem_events__name(int i)
 {
 	if (i == PERF_MEM_EVENTS__LOAD) {
 		if (!mem_loads_name__init) {

tools/perf/util/ordered-events.c

···
 	 * Current buffer might not have all the events allocated
 	 * yet, we need to free only allocated ones ...
 	 */
-	list_del(&oe->buffer->list);
-	ordered_events_buffer__free(oe->buffer, oe->buffer_idx, oe);
+	if (oe->buffer) {
+		list_del(&oe->buffer->list);
+		ordered_events_buffer__free(oe->buffer, oe->buffer_idx, oe);
+	}
 
 	/* ... and continue with the rest */
 	list_for_each_entry_safe(buffer, tmp, &oe->to_free, list) {

tools/perf/util/setup.py

···
             vars[var] = sub("-mcet", "", vars[var])
         if not clang_has_option("-fcf-protection"):
             vars[var] = sub("-fcf-protection", "", vars[var])
+        if not clang_has_option("-fstack-clash-protection"):
+            vars[var] = sub("-fstack-clash-protection", "", vars[var])
 
 from distutils.core import setup, Extension
 

tools/perf/util/symbol-elf.c

···
 #define EM_AARCH64	183  /* ARM 64 bit */
 #endif
 
+#ifndef ELF32_ST_VISIBILITY
+#define ELF32_ST_VISIBILITY(o)	((o) & 0x03)
+#endif
+
+/* For ELF64 the definitions are the same.  */
+#ifndef ELF64_ST_VISIBILITY
+#define ELF64_ST_VISIBILITY(o)	ELF32_ST_VISIBILITY (o)
+#endif
+
+/* How to extract information held in the st_other field.  */
+#ifndef GELF_ST_VISIBILITY
+#define GELF_ST_VISIBILITY(val)	ELF64_ST_VISIBILITY (val)
+#endif
+
 typedef Elf64_Nhdr GElf_Nhdr;
 
 #ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
···
 	return GELF_ST_TYPE(sym->st_info);
 }
 
+static inline uint8_t elf_sym__visibility(const GElf_Sym *sym)
+{
+	return GELF_ST_VISIBILITY(sym->st_other);
+}
+
 #ifndef STT_GNU_IFUNC
 #define STT_GNU_IFUNC 10
 #endif
···
 	return elf_sym__type(sym) == STT_NOTYPE &&
 		sym->st_name != 0 &&
 		sym->st_shndx != SHN_UNDEF &&
-		sym->st_shndx != SHN_ABS;
+		sym->st_shndx != SHN_ABS &&
+		elf_sym__visibility(sym) != STV_HIDDEN &&
+		elf_sym__visibility(sym) != STV_INTERNAL;
 }
 
 static bool elf_sym__filter(GElf_Sym *sym)

tools/testing/selftests/Makefile

···
 TARGETS += efivarfs
 TARGETS += exec
 TARGETS += filesystems
+TARGETS += filesystems/binderfs
 TARGETS += firmware
 TARGETS += ftrace
 TARGETS += futex

tools/testing/selftests/bpf/bpf_util.h

···
 	unsigned int start, end, possible_cpus = 0;
 	char buff[128];
 	FILE *fp;
-	int n;
+	int len, n, i, j = 0;
 
 	fp = fopen(fcpu, "r");
 	if (!fp) {
···
 		exit(1);
 	}
 
-	while (fgets(buff, sizeof(buff), fp)) {
-		n = sscanf(buff, "%u-%u", &start, &end);
-		if (n == 0) {
-			printf("Failed to retrieve # possible CPUs!\n");
-			exit(1);
-		} else if (n == 1) {
-			end = start;
-		}
-		possible_cpus = start == 0 ? end + 1 : 0;
-		break;
+	if (!fgets(buff, sizeof(buff), fp)) {
+		printf("Failed to read %s!\n", fcpu);
+		exit(1);
 	}
+
+	len = strlen(buff);
+	for (i = 0; i <= len; i++) {
+		if (buff[i] == ',' || buff[i] == '\0') {
+			buff[i] = '\0';
+			n = sscanf(&buff[j], "%u-%u", &start, &end);
+			if (n <= 0) {
+				printf("Failed to retrieve # possible CPUs!\n");
+				exit(1);
+			} else if (n == 1) {
+				end = start;
+			}
+			possible_cpus += end - start + 1;
+			j = i + 1;
+		}
+	}
+
 	fclose(fp);
 
 	return possible_cpus;

tools/testing/selftests/bpf/test_btf.c

···
 },
 
 {
-	.descr = "func proto (CONST=>TYPEDEF=>FUNC_PROTO)",
+	.descr = "func proto (TYPEDEF=>FUNC_PROTO)",
 	.raw_types = {
 		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
 		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
-		BTF_CONST_ENC(4),				/* [3] */
-		BTF_TYPEDEF_ENC(NAME_TBD, 5),			/* [4] */
-		BTF_FUNC_PROTO_ENC(0, 2),			/* [5] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),			/* [3] */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [4] */
 			BTF_FUNC_PROTO_ARG_ENC(0, 1),
 			BTF_FUNC_PROTO_ARG_ENC(0, 2),
 		BTF_END_RAW,
···
 	.key_type_id = 1,
 	.value_type_id = 1,
 	.max_entries = 4,
-	.btf_load_err = true,
-	.err_str = "Invalid type_id",
 },
 
 {

tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh

···
 		exit $ksft_skip
 	fi
 
+	present_cpus=`cat $SYSFS/devices/system/cpu/present`
+	present_max=${present_cpus##*-}
+	echo "present_cpus = $present_cpus present_max = $present_max"
+
 	echo -e "\t Cpus in online state: $online_cpus"
 
 	offline_cpus=`cat $SYSFS/devices/system/cpu/offline`
···
 online_max=0
 offline_cpus=0
 offline_max=0
+present_cpus=0
+present_max=0
 
 while getopts e:ahp: opt; do
 	case $opt in
···
 	online_cpu_expect_success $online_max
 
 	if [[ $offline_cpus -gt 0 ]]; then
-		echo -e "\t offline to online to offline: cpu $offline_max"
-		online_cpu_expect_success $offline_max
-		offline_cpu_expect_success $offline_max
+		echo -e "\t offline to online to offline: cpu $present_max"
+		online_cpu_expect_success $present_max
+		offline_cpu_expect_success $present_max
+		online_cpu $present_max
 	fi
 	exit 0
 else

tools/testing/selftests/filesystems/binderfs/.gitignore

···
+binderfs_test

tools/testing/selftests/filesystems/binderfs/Makefile

···
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += -I../../../../../usr/include/
+TEST_GEN_PROGS := binderfs_test
+
+include ../../lib.mk

tools/testing/selftests/filesystems/binderfs/binderfs_test.c

···
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <linux/android/binder.h>
+#include <linux/android/binderfs.h>
+#include "../../kselftest.h"
+
+static ssize_t write_nointr(int fd, const void *buf, size_t count)
+{
+	ssize_t ret;
+again:
+	ret = write(fd, buf, count);
+	if (ret < 0 && errno == EINTR)
+		goto again;
+
+	return ret;
+}
+
+static void write_to_file(const char *filename, const void *buf, size_t count,
+			  int allowed_errno)
+{
+	int fd, saved_errno;
+	ssize_t ret;
+
+	fd = open(filename, O_WRONLY | O_CLOEXEC);
+	if (fd < 0)
+		ksft_exit_fail_msg("%s - Failed to open file %s\n",
+				   strerror(errno), filename);
+
+	ret = write_nointr(fd, buf, count);
+	if (ret < 0) {
+		if (allowed_errno && (errno == allowed_errno)) {
+			close(fd);
+			return;
+		}
+
+		goto on_error;
+	}
+
+	if ((size_t)ret != count)
+		goto on_error;
+
+	close(fd);
+	return;
+
+on_error:
+	saved_errno = errno;
+	close(fd);
+	errno = saved_errno;
+
+	if (ret < 0)
+		ksft_exit_fail_msg("%s - Failed to write to file %s\n",
+				   strerror(errno), filename);
+
+	ksft_exit_fail_msg("Failed to write to file %s\n", filename);
+}
+
+static void change_to_userns(void)
+{
+	int ret;
+	uid_t uid;
+	gid_t gid;
+	/* {g,u}id_map files only allow a max of 4096 bytes written to them */
+	char idmap[4096];
+
+	uid = getuid();
+	gid = getgid();
+
+	ret = unshare(CLONE_NEWUSER);
+	if (ret < 0)
+		ksft_exit_fail_msg("%s - Failed to unshare user namespace\n",
+				   strerror(errno));
+
+	write_to_file("/proc/self/setgroups", "deny", strlen("deny"), ENOENT);
+
+	ret = snprintf(idmap, sizeof(idmap), "0 %d 1", uid);
+	if (ret < 0 || (size_t)ret >= sizeof(idmap))
+		ksft_exit_fail_msg("%s - Failed to prepare uid mapping\n",
+				   strerror(errno));
+
+	write_to_file("/proc/self/uid_map", idmap, strlen(idmap), 0);
+
+	ret = snprintf(idmap, sizeof(idmap), "0 %d 1", gid);
+	if (ret < 0 || (size_t)ret >= sizeof(idmap))
+		ksft_exit_fail_msg("%s - Failed to prepare uid mapping\n",
+				   strerror(errno));
+
+	write_to_file("/proc/self/gid_map", idmap, strlen(idmap), 0);
+
+	ret = setgid(0);
+	if (ret)
+		ksft_exit_fail_msg("%s - Failed to setgid(0)\n",
+				   strerror(errno));
+
+	ret = setuid(0);
+	if (ret)
+		ksft_exit_fail_msg("%s - Failed to setgid(0)\n",
+				   strerror(errno));
+}
+
+static void change_to_mountns(void)
+{
+	int ret;
+
+	ret = unshare(CLONE_NEWNS);
+	if (ret < 0)
+		ksft_exit_fail_msg("%s - Failed to unshare mount namespace\n",
+				   strerror(errno));
+
+	ret = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
+	if (ret < 0)
+		ksft_exit_fail_msg("%s - Failed to mount / as private\n",
+				   strerror(errno));
+}
+
+static void rmdir_protect_errno(const char *dir)
+{
+	int saved_errno = errno;
+	(void)rmdir(dir);
+	errno = saved_errno;
+}
+
+static void __do_binderfs_test(void)
+{
+	int fd, ret, saved_errno;
+	size_t len;
+	ssize_t wret;
+	bool keep = false;
+	struct binderfs_device device = { 0 };
+	struct binder_version version = { 0 };
+
+	change_to_mountns();
+
+	ret = mkdir("/dev/binderfs", 0755);
+	if (ret < 0) {
+		if (errno != EEXIST)
+			ksft_exit_fail_msg(
+				"%s - Failed to create binderfs mountpoint\n",
+				strerror(errno));
+
+		keep = true;
+	}
+
+	ret = mount(NULL, "/dev/binderfs", "binder", 0, 0);
+	if (ret < 0) {
+		if (errno != ENODEV)
+			ksft_exit_fail_msg("%s - Failed to mount binderfs\n",
+					   strerror(errno));
+
+		keep ? : rmdir_protect_errno("/dev/binderfs");
+		ksft_exit_skip(
+			"The Android binderfs filesystem is not available\n");
+	}
+
+	/* binderfs mount test passed */
+	ksft_inc_pass_cnt();
+
+	memcpy(device.name, "my-binder", strlen("my-binder"));
+
+	fd = open("/dev/binderfs/binder-control", O_RDONLY | O_CLOEXEC);
+	if (fd < 0)
+		ksft_exit_fail_msg(
+			"%s - Failed to open binder-control device\n",
+			strerror(errno));
+
+	ret = ioctl(fd, BINDER_CTL_ADD, &device);
+	saved_errno = errno;
+	close(fd);
+	errno = saved_errno;
+	if (ret < 0) {
+		keep ? : rmdir_protect_errno("/dev/binderfs");
+		ksft_exit_fail_msg(
+			"%s - Failed to allocate new binder device\n",
+			strerror(errno));
+	}
+
+	ksft_print_msg(
+		"Allocated new binder device with major %d, minor %d, and name %s\n",
+		device.major, device.minor, device.name);
+
+	/* binder device allocation test passed */
+	ksft_inc_pass_cnt();
+
+	fd = open("/dev/binderfs/my-binder", O_CLOEXEC | O_RDONLY);
+	if (fd < 0) {
+		keep ? : rmdir_protect_errno("/dev/binderfs");
+		ksft_exit_fail_msg("%s - Failed to open my-binder device\n",
+				   strerror(errno));
+	}
+
+	ret = ioctl(fd, BINDER_VERSION, &version);
+	saved_errno = errno;
+	close(fd);
+	errno = saved_errno;
+	if (ret < 0) {
+		keep ? : rmdir_protect_errno("/dev/binderfs");
+		ksft_exit_fail_msg(
+			"%s - Failed to open perform BINDER_VERSION request\n",
+			strerror(errno));
+	}
+
+	ksft_print_msg("Detected binder version: %d\n",
+		       version.protocol_version);
+
+	/* binder transaction with binderfs binder device passed */
+	ksft_inc_pass_cnt();
+
+	ret = unlink("/dev/binderfs/my-binder");
+	if (ret < 0) {
+		keep ? : rmdir_protect_errno("/dev/binderfs");
+		ksft_exit_fail_msg("%s - Failed to delete binder device\n",
+				   strerror(errno));
+	}
+
+	/* binder device removal passed */
+	ksft_inc_pass_cnt();
+
+	ret = unlink("/dev/binderfs/binder-control");
+	if (!ret) {
+		keep ? : rmdir_protect_errno("/dev/binderfs");
+		ksft_exit_fail_msg("Managed to delete binder-control device\n");
+	} else if (errno != EPERM) {
+		keep ? : rmdir_protect_errno("/dev/binderfs");
+		ksft_exit_fail_msg(
+			"%s - Failed to delete binder-control device but exited with unexpected error code\n",
+			strerror(errno));
+	}
+
+	/* binder-control device removal failed as expected */
+	ksft_inc_xfail_cnt();
+
+on_error:
+	ret = umount2("/dev/binderfs", MNT_DETACH);
+	keep ?: rmdir_protect_errno("/dev/binderfs");
+	if (ret < 0)
+		ksft_exit_fail_msg("%s - Failed to unmount binderfs\n",
+				   strerror(errno));
+
+	/* binderfs unmount test passed */
+	ksft_inc_pass_cnt();
+}
+
+static void binderfs_test_privileged()
+{
+	if (geteuid() != 0)
+		ksft_print_msg(
+			"Tests are not run as root. Skipping privileged tests\n");
+	else
+		__do_binderfs_test();
+}
+
+static void binderfs_test_unprivileged()
+{
+	change_to_userns();
+	__do_binderfs_test();
+}
+
+int main(int argc, char *argv[])
+{
+	binderfs_test_privileged();
+	binderfs_test_unprivileged();
+	ksft_exit_pass();
+}

tools/testing/selftests/filesystems/binderfs/config

···
+CONFIG_ANDROID=y
+CONFIG_ANDROID_BINDERFS=y
+CONFIG_ANDROID_BINDER_IPC=y

tools/testing/selftests/ir/Makefile

···
 # SPDX-License-Identifier: GPL-2.0
 TEST_PROGS := ir_loopback.sh
 TEST_GEN_PROGS_EXTENDED := ir_loopback
+APIDIR := ../../../include/uapi
+CFLAGS += -Wall -O2 -I$(APIDIR)
 
 include ../lib.mk

tools/testing/selftests/net/Makefile

···
 KSFT_KHDR_INSTALL := 1
 include ../lib.mk
 
-$(OUTPUT)/reuseport_bpf_numa: LDFLAGS += -lnuma
+$(OUTPUT)/reuseport_bpf_numa: LDLIBS += -lnuma
 $(OUTPUT)/tcp_mmap: LDFLAGS += -lpthread
 $(OUTPUT)/tcp_inq: LDFLAGS += -lpthread

tools/testing/selftests/net/xfrm_policy.sh

···
 SPI1=0x1
 SPI2=0x2
 
+do_esp_policy() {
+    local ns=$1
+    local me=$2
+    local remote=$3
+    local lnet=$4
+    local rnet=$5
+
+    # to encrypt packets as they go out (includes forwarded packets that need encapsulation)
+    ip -net $ns xfrm policy add src $lnet dst $rnet dir out tmpl src $me dst $remote proto esp mode tunnel priority 100 action allow
+    # to fwd decrypted packets after esp processing:
+    ip -net $ns xfrm policy add src $rnet dst $lnet dir fwd tmpl src $remote dst $me proto esp mode tunnel priority 100 action allow
+}
+
 do_esp() {
     local ns=$1
     local me=$2
···
     ip -net $ns xfrm state add src $remote dst $me proto esp spi $spi_in  enc aes $KEY_AES  auth sha1 $KEY_SHA  mode tunnel sel src $rnet dst $lnet
     ip -net $ns xfrm state add src $me  dst $remote proto esp spi $spi_out enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $lnet dst $rnet
 
-    # to encrypt packets as they go out (includes forwarded packets that need encapsulation)
-    ip -net $ns xfrm policy add src $lnet dst $rnet dir out tmpl src $me dst $remote proto esp mode tunnel priority 100 action allow
-    # to fwd decrypted packets after esp processing:
-    ip -net $ns xfrm policy add src $rnet dst $lnet dir fwd tmpl src $remote dst $me proto esp mode tunnel priority 100 action allow
+    do_esp_policy $ns $me $remote $lnet $rnet
+}
+
+# add policies with different netmasks, to make sure kernel carries
+# the policies contained within new netmask over when search tree is
+# re-built.
+# peer netns that are supposed to be encapsulated via esp have addresses
+# in the 10.0.1.0/24 and 10.0.2.0/24 subnets, respectively.
+#
+# Adding a policy for '10.0.1.0/23' will make it necessary to
+# alter the prefix of 10.0.1.0 subnet.
+# In case new prefix overlaps with existing node, the node and all
+# policies it carries need to be merged with the existing one(s).
+#
+# Do that here.
+do_overlap()
+{
+    local ns=$1
+
+    # adds new nodes to tree (neither network exists yet in policy database).
+    ip -net $ns xfrm policy add src 10.1.0.0/24 dst 10.0.0.0/24 dir fwd priority 200 action block
+
+    # adds a new node in the 10.0.0.0/24 tree (dst node exists).
+    ip -net $ns xfrm policy add src 10.2.0.0/24 dst 10.0.0.0/24 dir fwd priority 200 action block
+
+    # adds a 10.2.0.0/23 node, but for different dst.
+    ip -net $ns xfrm policy add src 10.2.0.0/23 dst 10.0.1.0/24 dir fwd priority 200 action block
+
+    # dst now overlaps with the 10.0.1.0/24 ESP policy in fwd.
+    # kernel must 'promote' existing one (10.0.0.0/24) to 10.0.0.0/23.
+    # But 10.0.0.0/23 also includes existing 10.0.1.0/24, so that node
+    # also has to be merged too, including source-sorted subtrees.
+    # old:
+    # 10.0.0.0/24 (node 1 in dst tree of the bin)
+    #    10.1.0.0/24 (node in src tree of dst node 1)
+    #    10.2.0.0/24 (node in src tree of dst node 1)
+    # 10.0.1.0/24 (node 2 in dst tree of the bin)
+    #    10.0.2.0/24 (node in src tree of dst node 2)
+    #    10.2.0.0/24 (node in src tree of dst node 2)
+    #
+    # The next 'policy add' adds dst '10.0.0.0/23', which means
+    # that dst node 1 and dst node 2 have to be merged including
+    # the sub-tree.  As no duplicates are allowed, policies in
+    # the two '10.0.2.0/24' are also merged.
+    #
+    # after the 'add', internal search tree should look like this:
+    # 10.0.0.0/23 (node in dst tree of bin)
+    #     10.0.2.0/24 (node in src tree of dst node)
+    #     10.1.0.0/24 (node in src tree of dst node)
+    #     10.2.0.0/24 (node in src tree of dst node)
+    #
+    # 10.0.0.0/24 and 10.0.1.0/24 nodes have been merged as 10.0.0.0/23.
+    ip -net $ns xfrm policy add src 10.1.0.0/24 dst 10.0.0.0/23 dir fwd priority 200 action block
 }
 
 do_esp_policy_get_check() {
···
 	return $lret
 }
 
+check_exceptions()
+{
+	logpostfix="$1"
+	local lret=0
+
+	# ping to .254 should be excluded from the tunnel (exception is in place).
+	check_xfrm 0 254
+	if [ $? -ne 0 ]; then
+		echo "FAIL: expected ping to .254 to fail ($logpostfix)"
+		lret=1
+	else
+		echo "PASS: ping to .254 bypassed ipsec tunnel ($logpostfix)"
+	fi
+
+	# ping to .253 should use use ipsec due to direct policy exception.
+	check_xfrm 1 253
+	if [ $? -ne 0 ]; then
+		echo "FAIL: expected ping to .253 to use ipsec tunnel ($logpostfix)"
+		lret=1
+	else
+		echo "PASS: direct policy matches ($logpostfix)"
+	fi
+
+	# ping to .2 should use ipsec.
+	check_xfrm 1 2
+	if [ $? -ne 0 ]; then
+		echo "FAIL: expected ping to .2 to use ipsec tunnel ($logpostfix)"
+		lret=1
+	else
+		echo "PASS: policy matches ($logpostfix)"
+	fi
+
+	return $lret
+}
+
 #check for needed privileges
 if [ "$(id -u)" -ne 0 ];then
 	echo "SKIP: Need root privileges"
···
 do_exception ns3 dead:3::1 dead:3::10 dead:2::fd  dead:2:f0::/96
 do_exception ns4 dead:3::10 dead:3::1 dead:1::fd  dead:1:f0::/96
 
-# ping to .254 should now be excluded from the tunnel
-check_xfrm 0 254
+check_exceptions "exceptions"
 if [ $? -ne 0 ]; then
-	echo "FAIL: expected ping to .254 to fail"
 	ret=1
-else
-	echo "PASS: ping to .254 bypassed ipsec tunnel"
 fi
 
-# ping to .253 should use use ipsec due to direct policy exception.
-check_xfrm 1 253
+# insert block policies with adjacent/overlapping netmasks
+do_overlap ns3
+
+check_exceptions "exceptions and block policies"
 if [ $? -ne 0 ]; then
-	echo "FAIL: expected ping to .253 to use ipsec tunnel"
 	ret=1
-else
-	echo "PASS: direct policy matches"
 fi
 
-# ping to .2 should use ipsec.
-check_xfrm 1 2
-if [ $? -ne 0 ]; then
-	echo "FAIL: expected ping to .2 to use ipsec tunnel"
-	ret=1
-else
-	echo "PASS: policy matches"
-fi
+for n in ns3 ns4;do
+	ip -net $n xfrm policy set hthresh4 28 24 hthresh6 126 125
+	sleep $((RANDOM%5))
+done
+
+check_exceptions "exceptions and block policies after hresh changes"
+
+# full flush of policy db, check everything gets freed incl. internal meta data
+ip -net ns3 xfrm policy flush
+
+do_esp_policy ns3 10.0.3.1 10.0.3.10 10.0.1.0/24 10.0.2.0/24
+do_exception ns3 10.0.3.1 10.0.3.10 10.0.2.253 10.0.2.240/28
+
+# move inexact policies to hash table
+ip -net ns3 xfrm policy set hthresh4 16 16
+
+sleep $((RANDOM%5))
+check_exceptions "exceptions and block policies after hthresh change in ns3"
+
+# restore original hthresh settings -- move policies back to tables
+for n in ns3 ns4;do
+	ip -net $n xfrm policy set hthresh4 32 32 hthresh6 128 128
+	sleep $((RANDOM%5))
+done
+check_exceptions "exceptions and block policies after hresh change to normal"
 
 for i in 1 2 3 4;do ip netns del ns$i;done
 

tools/testing/selftests/netfilter/Makefile

···
 # SPDX-License-Identifier: GPL-2.0
 # Makefile for netfilter selftests
 
-TEST_PROGS := nft_trans_stress.sh
+TEST_PROGS := nft_trans_stress.sh nft_nat.sh
 
 include ../lib.mk

tools/testing/selftests/netfilter/config

···
 CONFIG_NET_NS=y
-NF_TABLES_INET=y
+CONFIG_NF_TABLES_INET=y

tools/testing/selftests/netfilter/nft_nat.sh

···
+#!/bin/bash
+#
+# This test is for basic NAT functionality: snat, dnat, redirect, masquerade.
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+
+nft --version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without nft tool"
+	exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+ip netns add ns0
+ip netns add ns1
+ip netns add ns2
+
+ip link add veth0 netns ns0 type veth peer name eth0 netns ns1
+ip link add veth1 netns ns0 type veth peer name eth0 netns ns2
+
+ip -net ns0 link set lo up
+ip -net ns0 link set veth0 up
+ip -net ns0 addr add 10.0.1.1/24 dev veth0
+ip -net ns0 addr add dead:1::1/64 dev veth0
+
+ip -net ns0 link set veth1 up
+ip -net ns0 addr add 10.0.2.1/24 dev veth1
+ip -net ns0 addr add dead:2::1/64 dev veth1
+
+for i in 1 2; do
+  ip -net ns$i link set lo up
+  ip -net ns$i link set eth0 up
+  ip -net ns$i addr add 10.0.$i.99/24 dev eth0
+  ip -net ns$i route add default via 10.0.$i.1
+  ip -net ns$i addr add dead:$i::99/64 dev eth0
+  ip -net ns$i route add default via dead:$i::1
+done
+
+bad_counter()
+{
+	local ns=$1
+	local counter=$2
+	local expect=$3
+
+	echo "ERROR: $counter counter in $ns has unexpected value (expected $expect)" 1>&2
+	ip netns exec $ns nft list counter inet filter $counter 1>&2
+}
+
+check_counters()
+{
+	ns=$1
+	local lret=0
+
+	cnt=$(ip netns exec $ns nft list counter inet filter ns0in | grep -q "packets 1 bytes 84")
+	if [ $? -ne 0 ]; then
+		bad_counter $ns ns0in "packets 1 bytes 84"
+		lret=1
+	fi
+	cnt=$(ip netns exec $ns nft list counter inet filter ns0out | grep -q "packets 1 bytes 84")
+	if [ $? -ne 0 ]; then
+		bad_counter $ns ns0out "packets 1 bytes 84"
+		lret=1
+	fi
+
+	expect="packets 1 bytes 104"
+	cnt=$(ip netns exec $ns nft list counter inet filter ns0in6 | grep -q "$expect")
+	if [ $? -ne 0 ]; then
+		bad_counter $ns ns0in6 "$expect"
+		lret=1
+	fi
+	cnt=$(ip netns exec $ns nft list counter inet filter ns0out6 | grep -q "$expect")
+	if [ $? -ne 0 ]; then
+		bad_counter $ns ns0out6 "$expect"
+		lret=1
+	fi
+
+	return $lret
+}
+
+check_ns0_counters()
+{
+	local ns=$1
+	local lret=0
+
+	cnt=$(ip netns exec ns0 nft list counter inet filter ns0in | grep -q "packets 0 bytes 0")
+	if [ $? -ne 0 ]; then
+		bad_counter ns0 ns0in "packets 0 bytes 0"
+		lret=1
+	fi
+
+	cnt=$(ip netns exec ns0 nft list counter inet filter ns0in6 | grep -q "packets 0 bytes 0")
+	if [ $? -ne 0 ]; then
+		bad_counter ns0 ns0in6 "packets 0 bytes 0"
+		lret=1
+	fi
+
+	cnt=$(ip netns exec ns0 nft list counter inet filter ns0out | grep -q "packets 0 bytes 0")
+	if [ $? -ne 0 ]; then
+		bad_counter ns0 ns0out "packets 0 bytes 0"
+		lret=1
+	fi
+	cnt=$(ip netns exec ns0 nft list counter inet filter ns0out6 | grep -q "packets 0 bytes 0")
+	if [ $? -ne 0 ]; then
+		bad_counter ns0 ns0out6 "packets 0 bytes 0"
+		lret=1
+	fi
+
+	for dir in "in" "out" ; do
+		expect="packets 1 bytes 84"
+		cnt=$(ip netns exec ns0 nft list counter inet filter ${ns}${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns0 $ns$dir "$expect"
+			lret=1
+		fi
+
+		expect="packets 1 bytes 104"
+		cnt=$(ip netns exec ns0 nft list counter inet filter ${ns}${dir}6 | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns0 $ns$dir6 "$expect"
+			lret=1
+		fi
+	done
+
+	return $lret
+}
+
+reset_counters()
+{
+	for i in 0 1 2;do
+		ip netns exec ns$i nft reset counters inet > /dev/null
+	done
+}
+
+test_local_dnat6()
+{
+	local lret=0
+ip netns exec ns0 nft -f - <<EOF
+table ip6 nat {
+	chain output {
+		type nat hook output priority 0; policy accept;
+		ip6 daddr dead:1::99 dnat to dead:2::99
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add add ip6 dnat hook"
+		return $ksft_skip
+	fi
+
+	# ping netns1, expect rewrite to netns2
+	ip netns exec ns0 ping -q -c 1 dead:1::99 > /dev/null
+	if [ $? -ne 0 ]; then
+		lret=1
+		echo "ERROR: ping6 failed"
+		return $lret
+	fi
+
+	expect="packets 0 bytes 0"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns0 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns0 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns0 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns0 ns2$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# expect 0 count in ns1
+	expect="packets 0 bytes 0"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns0${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# expect 1 packet in ns2
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns0${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	test $lret -eq 0 && echo "PASS: ipv6 ping to ns1 was NATted to ns2"
+	ip netns exec ns0 nft flush chain ip6 nat output
+
+	return $lret
+}
+
+test_local_dnat()
+{
+	local lret=0
+ip netns exec ns0 nft -f - <<EOF
+table ip nat {
+	chain output {
+		type nat hook output priority 0; policy accept;
+		ip daddr 10.0.1.99 dnat to 10.0.2.99
+	}
+}
+EOF
+	# ping netns1, expect rewrite to netns2
+	ip netns exec ns0 ping -q -c 1 10.0.1.99 > /dev/null
+	if [ $? -ne 0 ]; then
+		lret=1
+		echo "ERROR: ping failed"
+		return $lret
+	fi
+
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns0 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns0 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns0 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns0 ns2$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# expect 0 count in ns1
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns0${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# expect 1 packet in ns2
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns0${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	test $lret -eq 0 && echo "PASS: ping to ns1 was NATted to ns2"
+
+	ip netns exec ns0 nft flush chain ip nat output
+
+	reset_counters
+	ip netns exec ns0 ping -q -c 1 10.0.1.99 > /dev/null
+	if [ $? -ne 0 ]; then
+		lret=1
+		echo "ERROR: ping failed"
+		return $lret
+	fi
+
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns0 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns0 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns0 ns2$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# expect 1 count in ns1
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns0${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns0 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# expect 0 packet in ns2
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns0${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns2$dir "$expect"
+			lret=1
+		fi
+	done
+
+	test $lret -eq 0 && echo "PASS: ping to ns1 OK after nat output chain flush"
+
+	return $lret
+}
+
+
+test_masquerade6()
+{
+	local lret=0
+
+	ip netns exec ns0 sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+
+	ip netns exec ns2 ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+	if [ $? -ne 0 ] ; then
+		echo "ERROR: cannot ping ns1 from ns2 via ipv6"
+		return 1
+		lret=1
+	fi
+
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns2$dir "$expect"
+			lret=1
+		fi
+
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+# add masquerading rule
+ip netns exec ns0 nft -f - <<EOF
+table ip6 nat {
+	chain postrouting {
+		type nat hook postrouting priority 0; policy accept;
+		meta oif veth0 masquerade
+	}
+}
+EOF
+	ip netns exec ns2 ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+	if [ $? -ne 0 ] ; then
+		echo "ERROR: cannot ping ns1 from ns2 with active ipv6 masquerading"
+		lret=1
+	fi
+
+	# ns1 should have seen packets from ns0, due to masquerade
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns0${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# ns1 should not have seen packets from ns2, due to masquerade
+	expect="packets 0 bytes 0"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	ip netns exec ns0 nft flush chain ip6 nat postrouting
+	if [ $? -ne 0 ]; then
+		echo "ERROR: Could not flush ip6 nat postrouting" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: IPv6 masquerade for ns2"
+
+	return $lret
+}
+
+test_masquerade()
+{
+	local lret=0
+
+	ip netns exec ns0 sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+	ip netns exec ns0 sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+	ip netns exec ns2 ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+	if [ $? -ne 0 ] ; then
+		echo "ERROR: canot ping ns1 from ns2"
+		lret=1
+	fi
+
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns2$dir "$expect"
+			lret=1
+		fi
+
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+# add masquerading rule
+ip netns exec ns0 nft -f - <<EOF
+table ip nat {
+	chain postrouting {
+		type nat hook postrouting priority 0; policy accept;
+		meta oif veth0 masquerade
+	}
+}
+EOF
+	ip netns exec ns2 ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+	if [ $? -ne 0 ] ; then
+		echo "ERROR: cannot ping ns1 from ns2 with active ip masquerading"
+		lret=1
+	fi
+
+	# ns1 should have seen packets from ns0, due to masquerade
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns0${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# ns1 should not have seen packets from ns2, due to masquerade
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	ip netns exec ns0 nft flush chain ip nat postrouting
+	if [ $? -ne 0 ]; then
+		echo "ERROR: Could not flush nat postrouting" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: IP masquerade for ns2"
+
+	return $lret
+}
+
+test_redirect6()
+{
+	local lret=0
+
+	ip netns exec ns0 sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+
+	ip netns exec ns2 ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+	if [ $? -ne 0 ] ; then
+		echo "ERROR: cannnot ping ns1 from ns2 via ipv6"
+		lret=1
+	fi
+
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns2$dir "$expect"
+			lret=1
+		fi
+
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+# add redirect rule
+ip netns exec ns0 nft -f - <<EOF
+table ip6 nat {
+	chain prerouting {
+		type nat hook prerouting priority 0; policy accept;
+		meta iif veth1 meta l4proto icmpv6 ip6 saddr dead:2::99 ip6 daddr dead:1::99 redirect
+	}
+}
+EOF
+	ip netns exec ns2 ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
+	if [ $? -ne 0 ] ; then
+		echo "ERROR: cannot ping ns1 from ns2 with active ip6 redirect"
+		lret=1
+	fi
+
+	# ns1 should have seen no packets from ns2, due to redirection
+	expect="packets 0 bytes 0"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# ns0 should have seen packets from ns2, due to masquerade
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		cnt=$(ip netns exec ns0 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	ip netns exec ns0 nft delete table ip6 nat
+	if [ $? -ne 0 ]; then
+		echo "ERROR: Could not delete ip6 nat table" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: IPv6 redirection for ns2"
+
+	return $lret
+}
+
+test_redirect()
+{
+	local lret=0
+
+	ip netns exec ns0 sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+	ip netns exec ns0 sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+	ip netns exec ns2 ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+	if [ $? -ne 0 ] ; then
+		echo "ERROR: cannot ping ns1 from ns2"
+		lret=1
+	fi
+
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns2$dir "$expect"
+			lret=1
+		fi
+
+		cnt=$(ip netns exec ns2 nft list counter inet filter ns1${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns2 ns1$dir "$expect"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+# add redirect rule
+ip netns exec ns0 nft -f - <<EOF
+table ip nat {
+	chain prerouting {
+		type nat hook prerouting priority 0; policy accept;
+		meta iif veth1 ip protocol icmp ip saddr 10.0.2.99 ip daddr 10.0.1.99 redirect
+	}
+}
+EOF
+	ip netns exec ns2 ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
+	if [ $? -ne 0 ] ; then
+		echo "ERROR: cannot ping ns1 from ns2 with active ip redirect"
+		lret=1
+	fi
+
+	# ns1 should have seen no packets from ns2, due to redirection
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+
+		cnt=$(ip netns exec ns1 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	# ns0 should have seen packets from ns2, due to masquerade
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		cnt=$(ip netns exec ns0 nft list counter inet filter ns2${dir} | grep -q "$expect")
+		if [ $? -ne 0 ]; then
+			bad_counter ns1 ns0$dir "$expect"
+			lret=1
+		fi
+	done
+
+	ip netns exec ns0 nft delete table ip nat
+	if [ $? -ne 0 ]; then
+		echo "ERROR: Could not delete nat table" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: IP redirection for ns2"
+
+	return $lret
+}
+
+
+# ip netns exec ns0 ping -c 1 -q 10.0.$i.99
+for i in 0 1 2; do
+ip netns exec ns$i nft -f - <<EOF
+table inet filter {
+	counter ns0in {}
+	counter ns1in {}
+	counter ns2in {}
+
+	counter ns0out {}
+	counter ns1out {}
+	counter ns2out {}
+
+	counter ns0in6 {}
+	counter ns1in6 {}
+	counter ns2in6 {}
+
+	counter ns0out6 {}
+	counter ns1out6 {}
+	counter ns2out6 {}
+
+	map nsincounter {
+		type ipv4_addr : counter
+		elements = { 10.0.1.1 : "ns0in",
+			     10.0.2.1 : "ns0in",
+			     10.0.1.99 : "ns1in",
+			     10.0.2.99 : "ns2in" }
+	}
+
+	map nsincounter6 {
+		type ipv6_addr : counter
+		elements = { dead:1::1 : "ns0in6",
+			     dead:2::1 : "ns0in6",
+			     dead:1::99 : "ns1in6",
+			     dead:2::99 : "ns2in6" }
+	}
+
+	map nsoutcounter {
+		type ipv4_addr : counter
+		elements = { 10.0.1.1 : "ns0out",
+			     10.0.2.1 : "ns0out",
+			     10.0.1.99: "ns1out",
+			     10.0.2.99: "ns2out" }
+	}
+
+	map nsoutcounter6 {
+		type ipv6_addr : counter
+		elements = { dead:1::1 : "ns0out6",
+			     dead:2::1 : "ns0out6",
+			     dead:1::99 : "ns1out6",
+			     dead:2::99 : "ns2out6" }
+	}
+
+	chain input {
+		type filter hook input priority 0; policy accept;
+		counter name ip saddr map @nsincounter
+		icmpv6 type { "echo-request", "echo-reply" } counter name ip6 saddr map @nsincounter6
+	}
+	chain output {
+		type filter hook output priority 0; policy accept;
+		counter name ip daddr map @nsoutcounter
+		icmpv6 type { "echo-request", "echo-reply" } counter name ip6 daddr map @nsoutcounter6
+	}
+}
+EOF
+done
+
+sleep 3
+# test basic connectivity
+for i in 1 2; do
+  ip netns exec ns0 ping -c 1 -q 10.0.$i.99 > /dev/null
+  if [ $? -ne 0 ];then
+  	echo "ERROR: Could not reach other namespace(s)" 1>&2
+	ret=1
+  fi
+
+  ip netns exec ns0 ping -c 1 -q dead:$i::99 > /dev/null
+  if [ $? -ne 0 ];then
+	echo "ERROR: Could not reach other namespace(s) via ipv6" 1>&2
+	ret=1
+  fi
+  check_counters ns$i
+  if [ $? -ne 0 ]; then
+	ret=1
+  fi
+
+  check_ns0_counters ns$i
+  if [ $? -ne 0 ]; then
+	ret=1
+  fi
+  reset_counters
+done
+
+if [ $ret -eq 0 ];then
+	echo "PASS: netns routing/connectivity: ns0 can reach ns1 and ns2"
+fi
+
+reset_counters
+test_local_dnat
+test_local_dnat6
+
+reset_counters
+test_masquerade
+test_masquerade6
+
+reset_counters
+test_redirect
+test_redirect6
+
+for i in 0 1 2; do ip netns del ns$i;done
+
+exit $ret

tools/testing/selftests/proc/.gitignore

···
 /proc-uptime-002
 /read
 /self
+/setns-dcache
 /thread-self

tools/testing/selftests/proc/Makefile

···
 TEST_GEN_PROGS += proc-uptime-002
 TEST_GEN_PROGS += read
 TEST_GEN_PROGS += self
+TEST_GEN_PROGS += setns-dcache
 TEST_GEN_PROGS += thread-self
 
 include ../lib.mk

tools/testing/selftests/proc/setns-dcache.c

···
+/*
+ * Copyright © 2019 Alexey Dobriyan <[e-mail]>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*
+ * Test that setns(CLONE_NEWNET) points to new /proc/net content even
+ * if old one is in dcache.
+ *
+ * FIXME /proc/net/unix is under CONFIG_UNIX which can be disabled.
+ */
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+
+static pid_t pid = -1;
+
+static void f(void)
+{
+	if (pid > 0) {
+		kill(pid, SIGTERM);
+	}
+}
+
+int main(void)
+{
+	int fd[2];
+	char _ = 0;
+	int nsfd;
+
+	atexit(f);
+
+	/* Check for priviledges and syscall availability straight away. */
+	if (unshare(CLONE_NEWNET) == -1) {
+		if (errno == ENOSYS || errno == EPERM) {
+			return 4;
+		}
+		return 1;
+	}
+	/* Distinguisher between two otherwise empty net namespaces. */
+	if (socket(AF_UNIX, SOCK_STREAM, 0) == -1) {
+		return 1;
+	}
+
+	if (pipe(fd) == -1) {
+		return 1;
+	}
+
+	pid = fork();
+	if (pid == -1) {
+		return 1;
+	}
+
+	if (pid == 0) {
+		if (unshare(CLONE_NEWNET) == -1) {
+			return 1;
+		}
+
+		if (write(fd[1], &_, 1) != 1) {
+			return 1;
+		}
+
+		pause();
+
+		return 0;
+	}
+
+	if (read(fd[0], &_, 1) != 1) {
+		return 1;
+	}
+
+	{
+		char buf[64];
+		snprintf(buf, sizeof(buf), "/proc/%u/ns/net", pid);
+		nsfd = open(buf, O_RDONLY);
+		if (nsfd == -1) {
+			return 1;
+		}
+	}
+
+	/* Reliably pin dentry into dcache. */
+	(void)open("/proc/net/unix", O_RDONLY);
+
+	if (setns(nsfd, CLONE_NEWNET) == -1) {
+		return 1;
+	}
+
+	kill(pid, SIGTERM);
+	pid = 0;
+
+	{
+		char buf[4096];
+		ssize_t rv;
+		int fd;
+
+		fd = open("/proc/net/unix", O_RDONLY);
+		if (fd == -1) {
+			return 1;
+		}
+
+#define S "Num       RefCount Protocol Flags    Type St Inode Path\n"
+		rv = read(fd, buf, sizeof(buf));
+
+		assert(rv == strlen(S));
+		assert(memcmp(buf, S, strlen(S)) == 0);
+	}
+
+	return 0;
+}

tools/testing/selftests/seccomp/seccomp_bpf.c

···
 #ifdef SYSCALL_NUM_RET_SHARE_REG
 # define EXPECT_SYSCALL_RETURN(val, action)	EXPECT_EQ(-1, action)
 #else
-# define EXPECT_SYSCALL_RETURN(val, action)	EXPECT_EQ(val, action)
+# define EXPECT_SYSCALL_RETURN(val, action)		\
+	do {						\
+		errno = 0;				\
+		if (val < 0) {				\
+			EXPECT_EQ(-1, action);		\
+			EXPECT_EQ(-(val), errno);	\
+		} else {				\
+			EXPECT_EQ(val, action);		\
+		}					\
+	} while (0)
 #endif
 
 /* Use PTRACE_GETREGS and PTRACE_SETREGS when available. This is useful for
···
 
 /* Architecture-specific syscall changing routine. */
 void change_syscall(struct __test_metadata *_metadata,
-		    pid_t tracee, int syscall)
+		    pid_t tracee, int syscall, int result)
 {
 	int ret;
 	ARCH_REGS regs;
···
 #ifdef SYSCALL_NUM_RET_SHARE_REG
 		TH_LOG("Can't modify syscall return on this architecture");
 #else
-		regs.SYSCALL_RET = EPERM;
+		regs.SYSCALL_RET = result;
 #endif
 
 #ifdef HAVE_GETREGS
···
 	case 0x1002:
 		/* change getpid to getppid. */
 		EXPECT_EQ(__NR_getpid, get_syscall(_metadata, tracee));
-		change_syscall(_metadata, tracee, __NR_getppid);
+		change_syscall(_metadata, tracee, __NR_getppid, 0);
 		break;
 	case 0x1003:
-		/* skip gettid. */
+		/* skip gettid with valid return code. */
 		EXPECT_EQ(__NR_gettid, get_syscall(_metadata, tracee));
-		change_syscall(_metadata, tracee, -1);
+		change_syscall(_metadata, tracee, -1, 45000);
 		break;
 	case 0x1004:
+		/* skip openat with error. */
+		EXPECT_EQ(__NR_openat, get_syscall(_metadata, tracee));
+		change_syscall(_metadata, tracee, -1, -ESRCH);
+		break;
+	case 0x1005:
 		/* do nothing (allow getppid) */
 		EXPECT_EQ(__NR_getppid, get_syscall(_metadata, tracee));
 		break;
···
 	nr = get_syscall(_metadata, tracee);
 
 	if (nr == __NR_getpid)
-		change_syscall(_metadata, tracee, __NR_getppid);
+		change_syscall(_metadata, tracee, __NR_getppid, 0);
+	if (nr == __NR_gettid)
+		change_syscall(_metadata, tracee, -1, 45000);
 	if (nr == __NR_openat)
-		change_syscall(_metadata, tracee, -1);
+		change_syscall(_metadata, tracee, -1, -ESRCH);
 }
 
 FIXTURE_DATA(TRACE_syscall) {
···
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE | 0x1002),
 		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_gettid, 0, 1),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE | 0x1003),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_openat, 0, 1),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE | 0x1004),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE | 0x1005),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
 	};
 
···
 	EXPECT_NE(self->mypid, syscall(__NR_getpid));
 }
 
-TEST_F(TRACE_syscall, ptrace_syscall_dropped)
+TEST_F(TRACE_syscall, ptrace_syscall_errno)
 {
 	/* Swap SECCOMP_RET_TRACE tracer for PTRACE_SYSCALL tracer. */
 	teardown_trace_fixture(_metadata, self->tracer);
 	self->tracer = setup_trace_fixture(_metadata, tracer_ptrace, NULL,
 					   true);
 
-	/* Tracer should skip the open syscall, resulting in EPERM. */
-	EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_openat));
+	/* Tracer should skip the open syscall, resulting in ESRCH. */
+	EXPECT_SYSCALL_RETURN(-ESRCH, syscall(__NR_openat));
+}
+
+TEST_F(TRACE_syscall, ptrace_syscall_faked)
+{
+	/* Swap SECCOMP_RET_TRACE tracer for PTRACE_SYSCALL tracer. */
+	teardown_trace_fixture(_metadata, self->tracer);
+	self->tracer = setup_trace_fixture(_metadata, tracer_ptrace, NULL,
+					   true);
+
+	/* Tracer should skip the gettid syscall, resulting fake pid. */
+	EXPECT_SYSCALL_RETURN(45000, syscall(__NR_gettid));
 }
 
 TEST_F(TRACE_syscall, syscall_allowed)
···
 	EXPECT_NE(self->mypid, syscall(__NR_getpid));
 }
 
-TEST_F(TRACE_syscall, syscall_dropped)
+TEST_F(TRACE_syscall, syscall_errno)
+{
+	long ret;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->prog, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* openat has been skipped and an errno return. */
+	EXPECT_SYSCALL_RETURN(-ESRCH, syscall(__NR_openat));
+}
+
+TEST_F(TRACE_syscall, syscall_faked)
 {
 	long ret;
 
···
 	ASSERT_EQ(0, ret);
 
 	/* gettid has been skipped and an altered return value stored. */
-	EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_gettid));
-	EXPECT_NE(self->mytid, syscall(__NR_gettid));
+	EXPECT_SYSCALL_RETURN(45000, syscall(__NR_gettid));
 }
 
 TEST_F(TRACE_syscall, skip_after_RET_TRACE)

tools/testing/selftests/timers/Makefile

···
 # SPDX-License-Identifier: GPL-2.0
 CFLAGS += -O3 -Wl,-no-as-needed -Wall
-LDFLAGS += -lrt -lpthread -lm
+LDLIBS += -lrt -lpthread -lm
 
 # these are all "safe" tests that don't modify
 # system time or require escalated privileges

virt/kvm/kvm_main.c

···
 	if (ops->init)
 		ops->init(dev);
 
+	kvm_get_kvm(kvm);
 	ret = anon_inode_getfd(ops->name, &kvm_device_fops, dev, O_RDWR | O_CLOEXEC);
 	if (ret < 0) {
+		kvm_put_kvm(kvm);
 		mutex_lock(&kvm->lock);
 		list_del(&dev->vm_node);
 		mutex_unlock(&kvm->lock);
···
 		return ret;
 	}
 
-	kvm_get_kvm(kvm);
 	cd->fd = ret;
 	return 0;
 }