Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

include/net/sock.h
7b50ecfcc6cd ("net: Rename ->stream_memory_read to ->sock_is_readable")
4c1e34c0dbff ("vsock: Enable y2038 safe timeval for timeout")

drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
0daa55d033b0 ("octeontx2-af: cn10k: debugfs for dumping LMTST map table")
e77bcdd1f639 ("octeontx2-af: Display all enabled PF VF rsrc_alloc entries.")

Adjacent code addition in both cases, keep both.

Signed-off-by: Jakub Kicinski <[e-mail]>

Documentation/devicetree/bindings/mfd/brcm,cru.yaml

···
   "#size-cells":
     const: 1
 
-  pinctrl:
-    $ref: ../pinctrl/brcm,ns-pinmux.yaml
-
 patternProperties:
   '^clock-controller@[a-f0-9]+$':
     $ref: ../clock/brcm,iproc-clocks.yaml
+
+  '^pin-controller@[a-f0-9]+$':
+    $ref: ../pinctrl/brcm,ns-pinmux.yaml
 
   '^thermal@[a-f0-9]+$':
     $ref: ../thermal/brcm,ns-thermal.yaml
···
                                  "iprocfast", "sata1", "sata2";
         };
 
-        pinctrl {
+        pin-controller@1c0 {
             compatible = "brcm,bcm4708-pinmux";
-            offset = <0x1c0>;
+            reg = <0x1c0 0x24>;
+            reg-names = "cru_gpio_control";
         };
 
         thermal@2c0 {

Documentation/devicetree/bindings/pinctrl/brcm,ns-pinmux.yaml

···
 
   A list of pins varies across chipsets so few bindings are available.
 
-  Node of the pinmux must be nested in the CRU (Central Resource Unit) "syscon"
-  node.
-
 properties:
   compatible:
     enum:
···
       - brcm,bcm4709-pinmux
       - brcm,bcm53012-pinmux
 
-  offset:
-    description: offset of pin registers in the CRU block
+  reg:
     maxItems: 1
-    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  reg-names:
+    const: cru_gpio_control
 
 patternProperties:
   '-pins$':
···
                         uart1_grp ]
 
 required:
-  - offset
+  - reg
+  - reg-names
 
 additionalProperties: false
 
 examples:
   - |
-    cru@1800c100 {
-        compatible = "syscon", "simple-mfd";
-        reg = <0x1800c100 0x1a4>;
+    pin-controller@1800c1c0 {
+        compatible = "brcm,bcm4708-pinmux";
+        reg = <0x1800c1c0 0x24>;
+        reg-names = "cru_gpio_control";
 
-        pinctrl {
-            compatible = "brcm,bcm4708-pinmux";
-            offset = <0xc0>;
-
-            spi-pins {
-                function = "spi";
-                groups = "spi_grp";
-            };
+        spi-pins {
+            function = "spi";
+            groups = "spi_grp";
         };
     };

Documentation/userspace-api/ioctl/ioctl-number.rst

···
 '8'   all                                                            SNP8023 advanced NIC card
                                                                      <mailto:[e-mail]>
 ';'   64-7F  linux/vfio.h
+'='   00-3f  uapi/linux/ptp_clock.h                                  <mailto:[e-mail]>
 '@'   00-0F  linux/radeonfb.h                                        conflict!
 '@'   00-0F  drivers/video/aty/aty128fb.c                            conflict!
 'A'   00-1F  linux/apm_bios.h                                        conflict!

MAINTAINERS

···
 F:	include/uapi/linux/devlink.h
 F:	net/core/devlink.c
 
+DH ELECTRONICS IMX6 DHCOM BOARD SUPPORT
+M:	Christoph Niedermaier <[e-mail]>
+L:	[e-mail]
+S:	Maintained
+F:	arch/arm/boot/dts/imx6*-dhcom-*
+
+DH ELECTRONICS STM32MP1 DHCOM/DHCOR BOARD SUPPORT
+M:	Marek Vasut <[e-mail]>
+L:	[e-mail]
+S:	Maintained
+F:	arch/arm/boot/dts/stm32mp1*-dhcom-*
+F:	arch/arm/boot/dts/stm32mp1*-dhcor-*
+
 DIALOG SEMICONDUCTOR DRIVERS
 M:	Support Opensource <[e-mail]>
 S:	Supported
···
 F:	drivers/net/ethernet/marvell/octeontx2/af/
 
 MARVELL PRESTERA ETHERNET SWITCH DRIVER
-M:	Vadym Kochan <[e-mail]>
 M:	Taras Chornyi <[e-mail]>
 S:	Supported
 W:	https://github.com/Marvell-switching/switchdev-prestera
···
 M:	Thomas Gleixner <[e-mail]>
 M:	Ingo Molnar <[e-mail]>
 M:	Borislav Petkov <[e-mail]>
+M:	Dave Hansen <[e-mail]>
 M:	[e-mail]
 R:	"H. Peter Anvin" <[e-mail]>
 L:	[e-mail]

Makefile

···
 VERSION = 5
 PATCHLEVEL = 15
 SUBLEVEL = 0
-EXTRAVERSION = -rc6
+EXTRAVERSION = -rc7
 NAME = Opossums on Parade
 
 # *DOCUMENTATION*

arch/arm/Kconfig

···
 	select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
 	select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL && !CC_IS_CLANG
 	select HAVE_FUNCTION_TRACER if !XIP_KERNEL
+	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_GCC_PLUGINS
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)
 	select HAVE_IRQ_TIME_ACCOUNTING

arch/arm/boot/compressed/decompress.c

···
 #endif
 
 #ifdef CONFIG_KERNEL_XZ
+/* Prevent KASAN override of string helpers in decompressor */
+#undef memmove
 #define memmove memmove
+#undef memcpy
 #define memcpy memcpy
 #include "../../../../lib/decompress_unxz.c"
 #endif

arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts

···
 	pinctrl-names = "default";
 	pinctrl-0 = <&gmac_rgmii_pins>;
 	phy-handle = <&phy1>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	status = "okay";
 };
 

arch/arm/include/asm/uaccess.h

···
 		register unsigned long __l asm("r1") = __limit;		\
 		register int __e asm("r0");				\
 		unsigned int __ua_flags = uaccess_save_and_enable();	\
+		int __tmp_e;						\
 		switch (sizeof(*(__p))) {				\
 		case 1:							\
 			if (sizeof((x)) >= 8)				\
···
 			break;						\
 		default: __e = __get_user_bad(); break;			\
 		}							\
+		__tmp_e = __e;						\
 		uaccess_restore(__ua_flags);				\
 		x = (typeof(*(p))) __r2;				\
-		__e;							\
+		__tmp_e;						\
 	})
 
 #define get_user(x, p)							\

arch/arm/kernel/head.S

···
 	add	r0, r4, #KERNEL_OFFSET >> (SECTION_SHIFT - PMD_ORDER)
 	ldr	r6, =(_end - 1)
 	adr_l	r5, kernel_sec_start		@ _pa(kernel_sec_start)
-#ifdef CONFIG_CPU_ENDIAN_BE8
+#if defined CONFIG_CPU_ENDIAN_BE8 || defined CONFIG_CPU_ENDIAN_BE32
 	str	r8, [r5, #4]			@ Save physical start of kernel (BE)
 #else
 	str	r8, [r5]			@ Save physical start of kernel (LE)
···
 	bls	1b
 	eor	r3, r3, r7			@ Remove the MMU flags
 	adr_l	r5, kernel_sec_end		@ _pa(kernel_sec_end)
-#ifdef CONFIG_CPU_ENDIAN_BE8
+#if defined CONFIG_CPU_ENDIAN_BE8 || defined CONFIG_CPU_ENDIAN_BE32
 	str	r3, [r5, #4]			@ Save physical end of kernel (BE)
 #else
 	str	r3, [r5]			@ Save physical end of kernel (LE)

arch/arm/kernel/traps.c

···
 		for (p = first, i = 0; i < 8 && p < top; i++, p += 4) {
 			if (p >= bottom && p < top) {
 				unsigned long val;
-				if (get_kernel_nofault(val, (unsigned long *)p))
+				if (!get_kernel_nofault(val, (unsigned long *)p))
 					sprintf(str + i * 9, " %08lx", val);
 				else
 					sprintf(str + i * 9, " ????????");

arch/arm/kernel/vmlinux-xip.lds.S

···
 		ARM_DISCARD
 		*(.alt.smp.init)
 		*(.pv_table)
+#ifndef CONFIG_ARM_UNWIND
+		*(.ARM.exidx) *(.ARM.exidx.*)
+		*(.ARM.extab) *(.ARM.extab.*)
+#endif
 	}
 
 	. = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
···
 ASSERT((_end - __bss_start) >= 12288, ".bss too small for CONFIG_XIP_DEFLATED_DATA")
 #endif
 
-#ifdef CONFIG_ARM_MPU
+#if defined(CONFIG_ARM_MPU) && !defined(CONFIG_COMPILE_TEST)
 /*
  * Due to PMSAv7 restriction on base address and size we have to
  * enforce minimal alignment restrictions. It was seen that weaker

arch/arm/mm/proc-macros.S

···
 
 .macro define_tlb_functions name:req, flags_up:req, flags_smp
 	.type	\name\()_tlb_fns, #object
+	.align 2
 ENTRY(\name\()_tlb_fns)
 	.long	\name\()_flush_user_tlb_range
 	.long	\name\()_flush_kern_tlb_range

arch/arm/probes/kprobes/core.c

···
 
 #endif /* !CONFIG_THUMB2_KERNEL */
 
-int __init arch_init_kprobes()
+int __init arch_init_kprobes(void)
 {
 	arm_probes_decode_init();
 #ifdef CONFIG_THUMB2_KERNEL

arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts

···
 	pinctrl-0 = <&emac_rgmii_pins>;
 	phy-supply = <&reg_gmac_3v3>;
 	phy-handle = <&ext_rgmii_phy>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	status = "okay";
 };
 

arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts

···
 		regulator-name = "rst-usb-eth2";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_usb_eth2>;
-		gpio = <&gpio3 2 GPIO_ACTIVE_LOW>;
+		gpio = <&gpio3 2 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
 	};
 
 	reg_vdd_5v: regulator-5v {
···
 		clocks = <&osc_can>;
 		interrupt-parent = <&gpio4>;
 		interrupts = <28 IRQ_TYPE_EDGE_FALLING>;
-		spi-max-frequency = <100000>;
+		spi-max-frequency = <10000000>;
 		vdd-supply = <&reg_vdd_3v3>;
 		xceiver-supply = <&reg_vdd_5v>;
 	};
···
 &fec1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-connection-type = "rgmii";
+	phy-connection-type = "rgmii-rxid";
 	phy-handle = <&ethphy>;
 	status = "okay";
 

arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi

···
 			reg_vdd_soc: BUCK1 {
 				regulator-name = "buck1";
 				regulator-min-microvolt = <800000>;
-				regulator-max-microvolt = <900000>;
+				regulator-max-microvolt = <850000>;
 				regulator-boot-on;
 				regulator-always-on;
 				regulator-ramp-delay = <3125>;
+				nxp,dvs-run-voltage = <850000>;
+				nxp,dvs-standby-voltage = <800000>;
 			};
 
 			reg_vdd_arm: BUCK2 {
···
 			reg_vdd_dram: BUCK3 {
 				regulator-name = "buck3";
 				regulator-min-microvolt = <850000>;
-				regulator-max-microvolt = <900000>;
+				regulator-max-microvolt = <950000>;
 				regulator-boot-on;
 				regulator-always-on;
 			};
···
 
 			reg_vdd_snvs: LDO2 {
 				regulator-name = "ldo2";
-				regulator-min-microvolt = <850000>;
+				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <900000>;
 				regulator-boot-on;
 				regulator-always-on;

arch/arm64/boot/dts/qcom/sm8250.dtsi

···
 			power-domains = <&dispcc MDSS_GDSC>;
 
 			clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+				 <&gcc GCC_DISP_HF_AXI_CLK>,
 				 <&gcc GCC_DISP_SF_AXI_CLK>,
 				 <&dispcc DISP_CC_MDSS_MDP_CLK>;
-			clock-names = "iface", "nrt_bus", "core";
+			clock-names = "iface", "bus", "nrt_bus", "core";
 
 			assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>;
 			assigned-clock-rates = <460000000>;

arch/arm64/net/bpf_jit_comp.c

···
 	return prog;
 }
 
+u64 bpf_jit_alloc_exec_limit(void)
+{
+	return BPF_JIT_REGION_SIZE;
+}
+
 void *bpf_jit_alloc_exec(unsigned long size)
 {
 	return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START,

arch/nds32/kernel/ftrace.c

···
 
 #ifndef CONFIG_DYNAMIC_FTRACE
 extern void (*ftrace_trace_function)(unsigned long, unsigned long,
-				     struct ftrace_ops*, struct pt_regs*);
+				     struct ftrace_ops*, struct ftrace_regs*);
 extern void ftrace_graph_caller(void);
 
 noinline void __naked ftrace_stub(unsigned long ip, unsigned long parent_ip,

arch/nios2/platform/Kconfig.platform

···
 
 config NIOS2_DTB_SOURCE_BOOL
 	bool "Compile and link device tree into kernel image"
+	depends on !COMPILE_TEST
 	help
 	  This allows you to specify a dts (device tree source) file
 	  which will be compiled and linked into the kernel image.

arch/riscv/net/bpf_jit_core.c

···
 
 	if (i == NR_JIT_ITERATIONS) {
 		pr_err("bpf-jit: image did not converge in <%d passes!\n", i);
-		bpf_jit_binary_free(jit_data->header);
+		if (jit_data->header)
+			bpf_jit_binary_free(jit_data->header);
 		prog = orig_prog;
 		goto out_offset;
 	}
···
 		bpf_jit_prog_release_other(prog, prog == orig_prog ?
 					   tmp : orig_prog);
 	return prog;
+}
+
+u64 bpf_jit_alloc_exec_limit(void)
+{
+	return BPF_JIT_REGION_SIZE;
 }
 
 void *bpf_jit_alloc_exec(unsigned long size)

arch/x86/include/asm/kvm_host.h

···
 
 	struct kvm_pio_request pio;
 	void *pio_data;
-	void *guest_ins_data;
+	void *sev_pio_data;
+	unsigned sev_pio_count;
 
 	u8 event_exit_inst_len;
 

arch/x86/kvm/mmu/mmu.c

···
 	unsigned bit;
 	bool wp;
 
-	if (!is_cr4_pke(mmu)) {
-		mmu->pkru_mask = 0;
+	mmu->pkru_mask = 0;
+
+	if (!is_cr4_pke(mmu))
 		return;
-	}
 
 	wp = is_cr0_wp(mmu);
 

arch/x86/kvm/svm/sev.c

···
 		goto e_free_trans;
 	}
 
+	/*
+	 * Flush (on non-coherent CPUs) before RECEIVE_UPDATE_DATA, the PSP
+	 * encrypts the written data with the guest's key, and the cache may
+	 * contain dirty, unencrypted data.
+	 */
+	sev_clflush_pages(guest_page, n);
+
 	/* The RECEIVE_UPDATE_DATA command requires C-bit to be always set. */
 	data.guest_address = (page_to_pfn(guest_page[0]) << PAGE_SHIFT) + offset;
 	data.guest_address |= sev_me_mask;

arch/x86/kvm/vmx/vmx.c

···
 
 		/*
 		 * If we are running L2 and L1 has a new pending interrupt
-		 * which can be injected, we should re-evaluate
-		 * what should be done with this new L1 interrupt.
-		 * If L1 intercepts external-interrupts, we should
-		 * exit from L2 to L1. Otherwise, interrupt should be
-		 * delivered directly to L2.
+		 * which can be injected, this may cause a vmexit or it may
+		 * be injected into L2.  Either way, this interrupt will be
+		 * processed via KVM_REQ_EVENT, not RVI, because we do not use
+		 * virtual interrupt delivery to inject L1 interrupts into L2.
 		 */
-		if (is_guest_mode(vcpu) && max_irr_updated) {
-			if (nested_exit_on_intr(vcpu))
-				kvm_vcpu_exiting_guest_mode(vcpu);
-			else
-				kvm_make_request(KVM_REQ_EVENT, vcpu);
-		}
+		if (is_guest_mode(vcpu) && max_irr_updated)
+			kvm_make_request(KVM_REQ_EVENT, vcpu);
 	} else {
 		max_irr = kvm_lapic_find_highest_irr(vcpu);
 	}

arch/x86/kvm/x86.c

···
 }
 
 static int emulator_pio_in_out(struct kvm_vcpu *vcpu, int size,
-			       unsigned short port, void *val,
+			       unsigned short port,
 			       unsigned int count, bool in)
 {
 	vcpu->arch.pio.port = port;
···
 	vcpu->arch.pio.count  = count;
 	vcpu->arch.pio.size = size;
 
-	if (!kernel_pio(vcpu, vcpu->arch.pio_data)) {
-		vcpu->arch.pio.count = 0;
+	if (!kernel_pio(vcpu, vcpu->arch.pio_data))
 		return 1;
-	}
 
 	vcpu->run->exit_reason = KVM_EXIT_IO;
 	vcpu->run->io.direction = in ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT;
···
 	return 0;
 }
 
+static int __emulator_pio_in(struct kvm_vcpu *vcpu, int size,
+			     unsigned short port, unsigned int count)
+{
+	WARN_ON(vcpu->arch.pio.count);
+	memset(vcpu->arch.pio_data, 0, size * count);
+	return emulator_pio_in_out(vcpu, size, port, count, true);
+}
+
+static void complete_emulator_pio_in(struct kvm_vcpu *vcpu, void *val)
+{
+	int size = vcpu->arch.pio.size;
+	unsigned count = vcpu->arch.pio.count;
+	memcpy(val, vcpu->arch.pio_data, size * count);
+	trace_kvm_pio(KVM_PIO_IN, vcpu->arch.pio.port, size, count, vcpu->arch.pio_data);
+	vcpu->arch.pio.count = 0;
+}
+
 static int emulator_pio_in(struct kvm_vcpu *vcpu, int size,
 			   unsigned short port, void *val, unsigned int count)
 {
-	int ret;
+	if (vcpu->arch.pio.count) {
+		/* Complete previous iteration.  */
+	} else {
+		int r = __emulator_pio_in(vcpu, size, port, count);
+		if (!r)
+			return r;
 
-	if (vcpu->arch.pio.count)
-		goto data_avail;
-
-	memset(vcpu->arch.pio_data, 0, size * count);
-
-	ret = emulator_pio_in_out(vcpu, size, port, val, count, true);
-	if (ret) {
-data_avail:
-		memcpy(val, vcpu->arch.pio_data, size * count);
-		trace_kvm_pio(KVM_PIO_IN, port, size, count, vcpu->arch.pio_data);
-		vcpu->arch.pio.count = 0;
-		return 1;
+		/* Results already available, fall through.  */
 	}
 
-	return 0;
+	WARN_ON(count != vcpu->arch.pio.count);
+	complete_emulator_pio_in(vcpu, val);
+	return 1;
 }
 
 static int emulator_pio_in_emulated(struct x86_emulate_ctxt *ctxt,
···
 			    unsigned short port, const void *val,
 			    unsigned int count)
 {
+	int ret;
+
 	memcpy(vcpu->arch.pio_data, val, size * count);
 	trace_kvm_pio(KVM_PIO_OUT, port, size, count, vcpu->arch.pio_data);
-	return emulator_pio_in_out(vcpu, size, port, (void *)val, count, false);
+	ret = emulator_pio_in_out(vcpu, size, port, count, false);
+	if (ret)
+                vcpu->arch.pio.count = 0;
+
+        return ret;
 }
 
 static int emulator_pio_out_emulated(struct x86_emulate_ctxt *ctxt,
···
 		if (likely(exit_fastpath != EXIT_FASTPATH_REENTER_GUEST))
 			break;
 
-                if (unlikely(kvm_vcpu_exit_request(vcpu))) {
+		if (vcpu->arch.apicv_active)
+			static_call(kvm_x86_sync_pir_to_irr)(vcpu);
+
+		if (unlikely(kvm_vcpu_exit_request(vcpu))) {
 			exit_fastpath = EXIT_FASTPATH_EXIT_HANDLED;
 			break;
 		}
-
-		if (vcpu->arch.apicv_active)
-			static_call(kvm_x86_sync_pir_to_irr)(vcpu);
-        }
+	}
 
 	/*
 	 * Do this here before restoring debug registers on the host.  And
···
 }
 EXPORT_SYMBOL_GPL(kvm_sev_es_mmio_read);
 
-static int complete_sev_es_emulated_ins(struct kvm_vcpu *vcpu)
-{
-	memcpy(vcpu->arch.guest_ins_data, vcpu->arch.pio_data,
-	       vcpu->arch.pio.count * vcpu->arch.pio.size);
-	vcpu->arch.pio.count = 0;
+static int kvm_sev_es_outs(struct kvm_vcpu *vcpu, unsigned int size,
+			   unsigned int port);
 
+static int complete_sev_es_emulated_outs(struct kvm_vcpu *vcpu)
+{
+	int size = vcpu->arch.pio.size;
+	int port = vcpu->arch.pio.port;
+
+	vcpu->arch.pio.count = 0;
+	if (vcpu->arch.sev_pio_count)
+		return kvm_sev_es_outs(vcpu, size, port);
 	return 1;
 }
 
 static int kvm_sev_es_outs(struct kvm_vcpu *vcpu, unsigned int size,
-			   unsigned int port, void *data,  unsigned int count)
+			   unsigned int port)
 {
-	int ret;
+	for (;;) {
+		unsigned int count =
+			min_t(unsigned int, PAGE_SIZE / size, vcpu->arch.sev_pio_count);
+		int ret = emulator_pio_out(vcpu, size, port, vcpu->arch.sev_pio_data, count);
 
-	ret = emulator_pio_out_emulated(vcpu->arch.emulate_ctxt, size, port,
-					data, count);
-	if (ret)
-		return ret;
+		/* memcpy done already by emulator_pio_out.  */
+		vcpu->arch.sev_pio_count -= count;
+		vcpu->arch.sev_pio_data += count * vcpu->arch.pio.size;
+		if (!ret)
+			break;
 
-	vcpu->arch.pio.count = 0;
+		/* Emulation done by the kernel.  */
+		if (!vcpu->arch.sev_pio_count)
+			return 1;
+	}
 
+	vcpu->arch.complete_userspace_io = complete_sev_es_emulated_outs;
 	return 0;
 }
 
 static int kvm_sev_es_ins(struct kvm_vcpu *vcpu, unsigned int size,
-			  unsigned int port, void *data, unsigned int count)
-{
-	int ret;
+			  unsigned int port);
 
-	ret = emulator_pio_in_emulated(vcpu->arch.emulate_ctxt, size, port,
-				       data, count);
-	if (ret) {
-		vcpu->arch.pio.count = 0;
-	} else {
-		vcpu->arch.guest_ins_data = data;
-		vcpu->arch.complete_userspace_io = complete_sev_es_emulated_ins;
+static void advance_sev_es_emulated_ins(struct kvm_vcpu *vcpu)
+{
+	unsigned count = vcpu->arch.pio.count;
+	complete_emulator_pio_in(vcpu, vcpu->arch.sev_pio_data);
+	vcpu->arch.sev_pio_count -= count;
+	vcpu->arch.sev_pio_data += count * vcpu->arch.pio.size;
+}
+
+static int complete_sev_es_emulated_ins(struct kvm_vcpu *vcpu)
+{
+	int size = vcpu->arch.pio.size;
+	int port = vcpu->arch.pio.port;
+
+	advance_sev_es_emulated_ins(vcpu);
+	if (vcpu->arch.sev_pio_count)
+		return kvm_sev_es_ins(vcpu, size, port);
+	return 1;
+}
+
+static int kvm_sev_es_ins(struct kvm_vcpu *vcpu, unsigned int size,
+			  unsigned int port)
+{
+	for (;;) {
+		unsigned int count =
+			min_t(unsigned int, PAGE_SIZE / size, vcpu->arch.sev_pio_count);
+		if (!__emulator_pio_in(vcpu, size, port, count))
+			break;
+
+		/* Emulation done by the kernel.  */
+		advance_sev_es_emulated_ins(vcpu);
+		if (!vcpu->arch.sev_pio_count)
+			return 1;
 	}
 
+	vcpu->arch.complete_userspace_io = complete_sev_es_emulated_ins;
 	return 0;
 }
 
···
 			 unsigned int port, void *data,  unsigned int count,
 			 int in)
 {
-	return in ? kvm_sev_es_ins(vcpu, size, port, data, count)
-		  : kvm_sev_es_outs(vcpu, size, port, data, count);
+	vcpu->arch.sev_pio_data = data;
+	vcpu->arch.sev_pio_count = count;
+	return in ? kvm_sev_es_ins(vcpu, size, port)
+		  : kvm_sev_es_outs(vcpu, size, port);
 }
 EXPORT_SYMBOL_GPL(kvm_sev_es_string_io);
 

block/blk-cgroup.c

···
 {
 	int rwd = blk_cgroup_io_type(bio), cpu;
 	struct blkg_iostat_set *bis;
+	unsigned long flags;
 
 	cpu = get_cpu();
 	bis = per_cpu_ptr(bio->bi_blkg->iostat_cpu, cpu);
-	u64_stats_update_begin(&bis->sync);
+	flags = u64_stats_update_begin_irqsave(&bis->sync);
 
 	/*
 	 * If the bio is flagged with BIO_CGROUP_ACCT it means this is a split
···
 	}
 	bis->cur.ios[rwd]++;
 
-	u64_stats_update_end(&bis->sync);
+	u64_stats_update_end_irqrestore(&bis->sync, flags);
 	if (cgroup_subsys_on_dfl(io_cgrp_subsys))
 		cgroup_rstat_updated(bio->bi_blkg->blkcg->css.cgroup, cpu);
 	put_cpu();

block/partitions/core.c

···
 	device_del(pdev);
 out_put:
 	put_device(pdev);
+	return ERR_PTR(err);
 out_put_disk:
 	put_disk(disk);
 	return ERR_PTR(err);

drivers/acpi/power.c

···
 	list_for_each_entry_reverse(resource, &acpi_power_resource_list, list_node) {
 		mutex_lock(&resource->resource_lock);
 
-		/*
-		 * Turn off power resources in an unknown state too, because the
-		 * platform firmware on some system expects the OS to turn off
-		 * power resources without any users unconditionally.
-		 */
 		if (!resource->ref_count &&
-		    resource->state != ACPI_POWER_RESOURCE_STATE_OFF) {
+		    resource->state == ACPI_POWER_RESOURCE_STATE_ON) {
 			acpi_handle_debug(resource->device.handle, "Turning OFF\n");
 			__acpi_power_off(resource);
 		}

drivers/ata/sata_mv.c

···
 		break;
 
 	default:
-		dev_err(host->dev, "BUG: invalid board index %u\n", board_idx);
-		return 1;
+		dev_alert(host->dev, "BUG: invalid board index %u\n", board_idx);
+		return -EINVAL;
 	}
 
 	hpriv->hp_flags = hp_flags;

drivers/base/regmap/regcache-rbtree.c

···
 	if (!blk)
 		return -ENOMEM;
 
+	rbnode->block = blk;
+
 	if (BITS_TO_LONGS(blklen) > BITS_TO_LONGS(rbnode->blklen)) {
 		present = krealloc(rbnode->cache_present,
 				   BITS_TO_LONGS(blklen) * sizeof(*present),
 				   GFP_KERNEL);
-		if (!present) {
-			kfree(blk);
+		if (!present)
 			return -ENOMEM;
-		}
 
 		memset(present + BITS_TO_LONGS(rbnode->blklen), 0,
 		       (BITS_TO_LONGS(blklen) - BITS_TO_LONGS(rbnode->blklen))
···
 	}
 
 	/* update the rbnode block, its size and the base register */
-	rbnode->block = blk;
 	rbnode->blklen = blklen;
 	rbnode->base_reg = base_reg;
 	rbnode->cache_present = present;

drivers/hv/hyperv_vmbus.h

···
 #define _HYPERV_VMBUS_H
 
 #include <linux/list.h>
+#include <linux/bitops.h>
 #include <asm/sync_bitops.h>
 #include <asm/hyperv-tlfs.h>
 #include <linux/atomic.h>

drivers/infiniband/core/sa_query.c

···
 
 	/* Construct the family header first */
 	header = skb_put(skb, NLMSG_ALIGN(sizeof(*header)));
-	memcpy(header->device_name, dev_name(&query->port->agent->device->dev),
-	       LS_DEVICE_NAME_MAX);
+	strscpy_pad(header->device_name,
+		    dev_name(&query->port->agent->device->dev),
+		    LS_DEVICE_NAME_MAX);
 	header->port_num = query->port->port_num;
 
 	if ((comp_mask & IB_SA_PATH_REC_REVERSIBLE) &&

drivers/infiniband/hw/hfi1/pio.c

···
 {
 	u64 reg;
 	struct pio_buf *pbuf;
+	LIST_HEAD(wake_list);
 
 	if (!sc)
 		return;
···
 	spin_unlock(&sc->release_lock);
 
 	write_seqlock(&sc->waitlock);
-	while (!list_empty(&sc->piowait)) {
+	if (!list_empty(&sc->piowait))
+		list_move(&sc->piowait, &wake_list);
+	write_sequnlock(&sc->waitlock);
+	while (!list_empty(&wake_list)) {
 		struct iowait *wait;
 		struct rvt_qp *qp;
 		struct hfi1_qp_priv *priv;
 
-		wait = list_first_entry(&sc->piowait, struct iowait, list);
+		wait = list_first_entry(&wake_list, struct iowait, list);
 		qp = iowait_to_qp(wait);
 		priv = qp->priv;
 		list_del_init(&priv->s_iowait.list);
 		priv->s_iowait.lock = NULL;
 		hfi1_qp_wakeup(qp, RVT_S_WAIT_PIO | HFI1_S_WAIT_PIO_DRAIN);
 	}
-	write_sequnlock(&sc->waitlock);
 
 	spin_unlock_irq(&sc->alloc_lock);
 }

drivers/infiniband/hw/irdma/uk.c

···
 		if (cq->avoid_mem_cflct) {
 			ext_cqe = (__le64 *)((u8 *)cqe + 32);
 			get_64bit_val(ext_cqe, 24, &qword7);
-			polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword3);
+			polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword7);
 		} else {
 			peek_head = (cq->cq_ring.head + 1) % cq->cq_ring.size;
 			ext_cqe = cq->cq_base[peek_head].buf;
 			get_64bit_val(ext_cqe, 24, &qword7);
-			polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword3);
+			polarity = (u8)FIELD_GET(IRDMA_CQ_VALID, qword7);
 			if (!peek_head)
 				polarity ^= 1;
 		}

drivers/infiniband/hw/irdma/verbs.c

···
 		}
 
 		if (cq_poll_info->ud_vlan_valid) {
-			entry->vlan_id = cq_poll_info->ud_vlan & VLAN_VID_MASK;
-			entry->wc_flags |= IB_WC_WITH_VLAN;
+			u16 vlan = cq_poll_info->ud_vlan & VLAN_VID_MASK;
+
 			entry->sl = cq_poll_info->ud_vlan >> VLAN_PRIO_SHIFT;
+			if (vlan) {
+				entry->vlan_id = vlan;
+				entry->wc_flags |= IB_WC_WITH_VLAN;
+			}
 		} else {
 			entry->sl = 0;
 		}

drivers/infiniband/hw/irdma/ws.c

···
 
 		tc_node->enable = true;
 		ret = irdma_ws_cqp_cmd(vsi, tc_node, IRDMA_OP_WS_MODIFY_NODE);
-		if (ret)
+		if (ret) {
+			vsi->unregister_qset(vsi, tc_node);
 			goto reg_err;
+		}
 	}
 	ibdev_dbg(to_ibdev(vsi->dev),
 		  "WS: Using node %d which represents VSI %d TC %d\n",
···
 	}
 	goto exit;
 
+reg_err:
+	irdma_ws_cqp_cmd(vsi, tc_node, IRDMA_OP_WS_DELETE_NODE);
+	list_del(&tc_node->siblings);
+	irdma_free_node(vsi, tc_node);
 leaf_add_err:
 	if (list_empty(&vsi_node->child_list_head)) {
 		if (irdma_ws_cqp_cmd(vsi, vsi_node, IRDMA_OP_WS_DELETE_NODE))
···
 
 exit:
 	mutex_unlock(&vsi->dev->ws_mutex);
-	return ret;
-
-reg_err:
-	mutex_unlock(&vsi->dev->ws_mutex);
-	irdma_ws_remove(vsi, user_pri);
 	return ret;
 }
 

drivers/infiniband/hw/mlx5/mr.c

···
 		goto err_2;
 	}
 	mr->mmkey.type = MLX5_MKEY_MR;
-	mr->desc_size = sizeof(struct mlx5_mtt);
 	mr->umem = umem;
 	set_mr_fields(dev, mr, umem->length, access_flags, iova);
 	kvfree(in);
···
 		ib_umem_release(&odp->umem);
 		return ERR_CAST(mr);
 	}
+	xa_init(&mr->implicit_children);
 
 	odp->private = mr;
 	err = mlx5r_store_odp_mkey(dev, &mr->mmkey);

drivers/infiniband/hw/mlx5/qp.c

···
 		MLX5_SET(dctc, dctc, mtu, attr->path_mtu);
 		MLX5_SET(dctc, dctc, my_addr_index, attr->ah_attr.grh.sgid_index);
 		MLX5_SET(dctc, dctc, hop_limit, attr->ah_attr.grh.hop_limit);
+		if (attr->ah_attr.type == RDMA_AH_ATTR_TYPE_ROCE)
+			MLX5_SET(dctc, dctc, eth_prio, attr->ah_attr.sl & 0x7);
 
 		err = mlx5_core_create_dct(dev, &qp->dct.mdct, qp->dct.in,
 					   MLX5_ST_SZ_BYTES(create_dct_in), out,

drivers/infiniband/hw/qedr/qedr.h

···
 	/* synchronization objects used with iwarp ep */
 	struct kref refcnt;
 	struct completion iwarp_cm_comp;
+	struct completion qp_rel_comp;
 	unsigned long iwarp_cm_flags; /* enum iwarp_cm_flags */
 };
 

drivers/infiniband/hw/qedr/qedr_iw_cm.c

···
 {
 	struct qedr_qp *qp = container_of(ref, struct qedr_qp, refcnt);
 
-	kfree(qp);
+	complete(&qp->qp_rel_comp);
 }
 
 static void

drivers/infiniband/hw/qedr/verbs.c

···
 	if (rdma_protocol_iwarp(&dev->ibdev, 1)) {
 		kref_init(&qp->refcnt);
 		init_completion(&qp->iwarp_cm_comp);
+		init_completion(&qp->qp_rel_comp);
 	}
 
 	qp->pd = pd;
···
 
 	qedr_free_qp_resources(dev, qp, udata);
 
-	if (rdma_protocol_iwarp(&dev->ibdev, 1))
+	if (rdma_protocol_iwarp(&dev->ibdev, 1)) {
 		qedr_iw_qp_rem_ref(&qp->ibqp);
+		wait_for_completion(&qp->qp_rel_comp);
+	}
 
 	return 0;
 }

drivers/infiniband/hw/qib/qib_user_sdma.c

···
 /*
  * How many pages in this iovec element?
  */
-static int qib_user_sdma_num_pages(const struct iovec *iov)
+static size_t qib_user_sdma_num_pages(const struct iovec *iov)
 {
 	const unsigned long addr  = (unsigned long) iov->iov_base;
 	const unsigned long  len  = iov->iov_len;
···
 static int qib_user_sdma_pin_pages(const struct qib_devdata *dd,
 				   struct qib_user_sdma_queue *pq,
 				   struct qib_user_sdma_pkt *pkt,
-				   unsigned long addr, int tlen, int npages)
+				   unsigned long addr, int tlen, size_t npages)
 {
 	struct page *pages[8];
 	int i, j;
···
 	unsigned long idx;
 
 	for (idx = 0; idx < niov; idx++) {
-		const int npages = qib_user_sdma_num_pages(iov + idx);
+		const size_t npages = qib_user_sdma_num_pages(iov + idx);
 		const unsigned long addr = (unsigned long) iov[idx].iov_base;
 
 		ret = qib_user_sdma_pin_pages(dd, pq, pkt, addr,
···
 		unsigned pktnw;
 		unsigned pktnwc;
 		int nfrags = 0;
-		int npages = 0;
-		int bytes_togo = 0;
+		size_t npages = 0;
+		size_t bytes_togo = 0;
 		int tiddma = 0;
 		int cfur;
 
···
 
 			npages += qib_user_sdma_num_pages(&iov[idx]);
 
-			bytes_togo += slen;
+			if (check_add_overflow(bytes_togo, slen, &bytes_togo) ||
+			    bytes_togo > type_max(typeof(pkt->bytes_togo))) {
+				ret = -EINVAL;
+				goto free_pbc;
+			}
 			pktnwc += slen >> 2;
 			idx++;
 			nfrags++;
···
 		}
 
 		if (frag_size) {
-			int tidsmsize, n;
-			size_t pktsize;
+			size_t tidsmsize, n, pktsize, sz, addrlimit;
 
 			n = npages*((2*PAGE_SIZE/frag_size)+1);
 			pktsize = struct_size(pkt, addr, n);
···
 			else
 				tidsmsize = 0;
 
-			pkt = kmalloc(pktsize+tidsmsize, GFP_KERNEL);
+			if (check_add_overflow(pktsize, tidsmsize, &sz)) {
+				ret = -EINVAL;
+				goto free_pbc;
+			}
+			pkt = kmalloc(sz, GFP_KERNEL);
 			if (!pkt) {
 				ret = -ENOMEM;
 				goto free_pbc;
 			}
 			pkt->largepkt = 1;
 			pkt->frag_size = frag_size;
-			pkt->addrlimit = n + ARRAY_SIZE(pkt->addr);
+			if (check_add_overflow(n, ARRAY_SIZE(pkt->addr),
+					       &addrlimit) ||
+			    addrlimit > type_max(typeof(pkt->addrlimit))) {
+				ret = -EINVAL;
+				goto free_pbc;
+			}
+			pkt->addrlimit = addrlimit;
 
 			if (tiddma) {
 				char *tidsm = (char *)pkt + pktsize;

drivers/infiniband/sw/rdmavt/qp.c

···
 	spin_lock(&rdi->n_qps_lock);
 	if (rdi->n_qps_allocated == rdi->dparms.props.max_qp) {
 		spin_unlock(&rdi->n_qps_lock);
-		ret = ENOMEM;
+		ret = -ENOMEM;
 		goto bail_ip;
 	}
 

drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c

···
 		.name = "uc",
 		.cmd = HNAE3_DBG_CMD_MAC_UC,
 		.dentry = HNS3_DBG_DENTRY_MAC,
-		.buf_len = HNS3_DBG_READ_LEN,
+		.buf_len = HNS3_DBG_READ_LEN_128KB,
 		.init = hns3_dbg_common_file_init,
 	},
 	{
···
 		.name = "tqp",
 		.cmd = HNAE3_DBG_CMD_REG_TQP,
 		.dentry = HNS3_DBG_DENTRY_REG,
-		.buf_len = HNS3_DBG_READ_LEN,
+		.buf_len = HNS3_DBG_READ_LEN_128KB,
 		.init = hns3_dbg_common_file_init,
 	},
 	{
···
 		.name = "fd_tcam",
 		.cmd = HNAE3_DBG_CMD_FD_TCAM,
 		.dentry = HNS3_DBG_DENTRY_FD,
-		.buf_len = HNS3_DBG_READ_LEN,
+		.buf_len = HNS3_DBG_READ_LEN_1MB,
 		.init = hns3_dbg_common_file_init,
 	},
 	{
···
 	{ "TAIL", 2 },
 	{ "HEAD", 2 },
 	{ "FBDNUM", 2 },
-	{ "PKTNUM", 2 },
+	{ "PKTNUM", 5 },
 	{ "COPYBREAK", 2 },
 	{ "RING_EN", 2 },
 	{ "RX_RING_EN", 2 },
···
 	{ "HEAD", 2 },
 	{ "FBDNUM", 2 },
 	{ "OFFSET", 2 },
-	{ "PKTNUM", 2 },
+	{ "PKTNUM", 5 },
 	{ "RING_EN", 2 },
 	{ "TX_RING_EN", 2 },
 	{ "BASE_ADDR", 10 },
···
 }
 
 static const struct hns3_dbg_item tx_bd_info_items[] = {
-	{ "BD_IDX", 5 },
-	{ "ADDRESS", 2 },
+	{ "BD_IDX", 2 },
+	{ "ADDRESS", 13 },
 	{ "VLAN_TAG", 2 },
 	{ "SIZE", 2 },
 	{ "T_CS_VLAN_TSO", 2 },
 	{ "OT_VLAN_TAG", 3 },
-	{ "TV", 2 },
+	{ "TV", 5 },
 	{ "OLT_VLAN_LEN", 2 },
 	{ "PAYLEN_OL4CS", 2 },
 	{ "BD_FE_SC_VLD", 2 },

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c

···
 static int hclge_dbg_dump_dcb_qset(struct hclge_dev *hdev, char *buf, int len,
 				   int *pos)
 {
-	struct hclge_dbg_bitmap_cmd *bitmap;
+	struct hclge_dbg_bitmap_cmd req;
 	struct hclge_desc desc;
 	u16 qset_id, qset_num;
 	int ret;
···
 		if (ret)
 			return ret;
 
-		bitmap = (struct hclge_dbg_bitmap_cmd *)&desc.data[1];
+		req.bitmap = (u8)le32_to_cpu(desc.data[1]);
 
 		*pos += scnprintf(buf + *pos, len - *pos,
 				  "%04u           %#x            %#x             %#x               %#x\n",
-				  qset_id, bitmap->bit0, bitmap->bit1,
-				  bitmap->bit2, bitmap->bit3);
+				  qset_id, req.bit0, req.bit1, req.bit2,
+				  req.bit3);
 	}
 
 	return 0;
···
 static int hclge_dbg_dump_dcb_pri(struct hclge_dev *hdev, char *buf, int len,
 				  int *pos)
 {
-	struct hclge_dbg_bitmap_cmd *bitmap;
+	struct hclge_dbg_bitmap_cmd req;
 	struct hclge_desc desc;
 	u8 pri_id, pri_num;
 	int ret;
···
 		if (ret)
 			return ret;
 
-		bitmap = (struct hclge_dbg_bitmap_cmd *)&desc.data[1];
+		req.bitmap = (u8)le32_to_cpu(desc.data[1]);
 
 		*pos += scnprintf(buf + *pos, len - *pos,
 				  "%03u       %#x           %#x                %#x\n",
-				  pri_id, bitmap->bit0, bitmap->bit1,
-				  bitmap->bit2);
+				  pri_id, req.bit0, req.bit1, req.bit2);
 	}
 
 	return 0;
···
 static int hclge_dbg_dump_dcb_pg(struct hclge_dev *hdev, char *buf, int len,
 				 int *pos)
 {
-	struct hclge_dbg_bitmap_cmd *bitmap;
+	struct hclge_dbg_bitmap_cmd req;
 	struct hclge_desc desc;
 	u8 pg_id;
 	int ret;
···
 		if (ret)
 			return ret;
 
-		bitmap = (struct hclge_dbg_bitmap_cmd *)&desc.data[1];
+		req.bitmap = (u8)le32_to_cpu(desc.data[1]);
 
 		*pos += scnprintf(buf + *pos, len - *pos,
 				  "%03u      %#x           %#x               %#x\n",
-				  pg_id, bitmap->bit0, bitmap->bit1,
-				  bitmap->bit2);
+				  pg_id, req.bit0, req.bit1, req.bit2);
 	}
 
 	return 0;
···
 static int hclge_dbg_dump_dcb_port(struct hclge_dev *hdev, char *buf, int len,
 				   int *pos)
 {
-	struct hclge_dbg_bitmap_cmd *bitmap;
+	struct hclge_dbg_bitmap_cmd req;
 	struct hclge_desc desc;
 	u8 port_id = 0;
 	int ret;
···
 	if (ret)
 		return ret;
 
-	bitmap = (struct hclge_dbg_bitmap_cmd *)&desc.data[1];
+	req.bitmap = (u8)le32_to_cpu(desc.data[1]);
 
 	*pos += scnprintf(buf + *pos, len - *pos, "port_mask: %#x\n",
-			 bitmap->bit0);
+			 req.bit0);
 	*pos += scnprintf(buf + *pos, len - *pos, "port_shaping_pass: %#x\n",
-			 bitmap->bit1);
+			 req.bit1);
 
 	return 0;
 }

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

···
 {
 	if (!test_bit(HCLGE_STATE_REMOVING, &hdev->state) &&
 	    !test_and_set_bit(HCLGE_STATE_MBX_SERVICE_SCHED, &hdev->state))
-		mod_delayed_work_on(cpumask_first(&hdev->affinity_mask),
-				    hclge_wq, &hdev->service_task, 0);
+		mod_delayed_work(hclge_wq, &hdev->service_task, 0);
 }
 
 static void hclge_reset_task_schedule(struct hclge_dev *hdev)
 {
 	if (!test_bit(HCLGE_STATE_REMOVING, &hdev->state) &&
+	    test_bit(HCLGE_STATE_SERVICE_INITED, &hdev->state) &&
 	    !test_and_set_bit(HCLGE_STATE_RST_SERVICE_SCHED, &hdev->state))
-		mod_delayed_work_on(cpumask_first(&hdev->affinity_mask),
-				    hclge_wq, &hdev->service_task, 0);
+		mod_delayed_work(hclge_wq, &hdev->service_task, 0);
 }
 
 static void hclge_errhand_task_schedule(struct hclge_dev *hdev)
 {
 	if (!test_bit(HCLGE_STATE_REMOVING, &hdev->state) &&
 	    !test_and_set_bit(HCLGE_STATE_ERR_SERVICE_SCHED, &hdev->state))
-		mod_delayed_work_on(cpumask_first(&hdev->affinity_mask),
-				    hclge_wq, &hdev->service_task, 0);
+		mod_delayed_work(hclge_wq, &hdev->service_task, 0);
 }
 
 void hclge_task_schedule(struct hclge_dev *hdev, unsigned long delay_time)
 {
 	if (!test_bit(HCLGE_STATE_REMOVING, &hdev->state) &&
 	    !test_bit(HCLGE_STATE_RST_FAIL, &hdev->state))
-		mod_delayed_work_on(cpumask_first(&hdev->affinity_mask),
-				    hclge_wq, &hdev->service_task,
-				    delay_time);
+		mod_delayed_work(hclge_wq, &hdev->service_task, delay_time);
 }
 
 static int hclge_get_mac_link_status(struct hclge_dev *hdev, int *link_status)
···
 	hdev->num_msi_used += 1;
 }
 
-static void hclge_irq_affinity_notify(struct irq_affinity_notify *notify,
-				      const cpumask_t *mask)
-{
-	struct hclge_dev *hdev = container_of(notify, struct hclge_dev,
-					      affinity_notify);
-
-	cpumask_copy(&hdev->affinity_mask, mask);
-}
-
-static void hclge_irq_affinity_release(struct kref *ref)
-{
-}
-
 static void hclge_misc_affinity_setup(struct hclge_dev *hdev)
 {
 	irq_set_affinity_hint(hdev->misc_vector.vector_irq,
 			      &hdev->affinity_mask);
-
-	hdev->affinity_notify.notify = hclge_irq_affinity_notify;
-	hdev->affinity_notify.release = hclge_irq_affinity_release;
-	irq_set_affinity_notifier(hdev->misc_vector.vector_irq,
-				  &hdev->affinity_notify);
 }
 
 static void hclge_misc_affinity_teardown(struct hclge_dev *hdev)
 {
-	irq_set_affinity_notifier(hdev->misc_vector.vector_irq, NULL);
 	irq_set_affinity_hint(hdev->misc_vector.vector_irq, NULL);
 }
 
···
 {
 	pr_info("%s is initializing\n", HCLGE_NAME);
 
-	hclge_wq = alloc_workqueue("%s", 0, 0, HCLGE_NAME);
+	hclge_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, HCLGE_NAME);
 	if (!hclge_wq) {
 		pr_err("%s: failed to create workqueue\n", HCLGE_NAME);
 		return -ENOMEM;

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h

···
 
 	/* affinity mask and notify for misc interrupt */
 	cpumask_t affinity_mask;
-	struct irq_affinity_notify affinity_notify;
 	struct hclge_ptp *ptp;
 	struct devlink *devlink;
 };

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c

···
 void hclgevf_reset_task_schedule(struct hclgevf_dev *hdev)
 {
 	if (!test_bit(HCLGEVF_STATE_REMOVING, &hdev->state) &&
+	    test_bit(HCLGEVF_STATE_SERVICE_INITED, &hdev->state) &&
 	    !test_and_set_bit(HCLGEVF_STATE_RST_SERVICE_SCHED,
 			      &hdev->state))
 		mod_delayed_work(hclgevf_wq, &hdev->service_task, 0);
···
 
 	hclgevf_init_rxd_adv_layout(hdev);
 
+	set_bit(HCLGEVF_STATE_SERVICE_INITED, &hdev->state);
+
 	hdev->last_reset_time = jiffies;
 	dev_info(&hdev->pdev->dev, "finished initializing %s driver\n",
 		 HCLGEVF_DRIVER_NAME);
···
 {
 	pr_info("%s is initializing\n", HCLGEVF_NAME);
 
-	hclgevf_wq = alloc_workqueue("%s", 0, 0, HCLGEVF_NAME);
+	hclgevf_wq = alloc_workqueue("%s", WQ_UNBOUND, 0, HCLGEVF_NAME);
 	if (!hclgevf_wq) {
 		pr_err("%s: failed to create workqueue\n", HCLGEVF_NAME);
 		return -ENOMEM;

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h

···
 	HCLGEVF_STATE_REMOVING,
 	HCLGEVF_STATE_NIC_REGISTERED,
 	HCLGEVF_STATE_ROCE_REGISTERED,
+	HCLGEVF_STATE_SERVICE_INITED,
 	/* task states */
 	HCLGEVF_STATE_RST_SERVICE_SCHED,
 	HCLGEVF_STATE_RST_HANDLING,

drivers/net/ethernet/intel/ice/ice_lag.c

···
  */
 static void ice_lag_info_event(struct ice_lag *lag, void *ptr)
 {
-	struct net_device *event_netdev, *netdev_tmp;
 	struct netdev_notifier_bonding_info *info;
 	struct netdev_bonding_info *bonding_info;
+	struct net_device *event_netdev;
 	const char *lag_netdev_name;
 
 	event_netdev = netdev_notifier_info_to_dev(ptr);
···
 		netdev_dbg(lag->netdev, "Bonding event recv, but slave info not for us\n");
 		goto lag_out;
 	}
-
-	rcu_read_lock();
-	for_each_netdev_in_bond_rcu(lag->upper_netdev, netdev_tmp) {
-		if (!netif_is_ice(netdev_tmp))
-			continue;
-
-		if (netdev_tmp && netdev_tmp != lag->netdev &&
-		    lag->peer_netdev != netdev_tmp) {
-			dev_hold(netdev_tmp);
-			lag->peer_netdev = netdev_tmp;
-		}
-	}
-	rcu_read_unlock();
 
 	if (bonding_info->slave.state)
 		ice_lag_set_backup(lag);
···
 		break;
 	case NETDEV_BONDING_INFO:
 		ice_lag_info_event(lag, ptr);
+		break;
+	case NETDEV_UNREGISTER:
+		ice_lag_unlink(lag, ptr);
 		break;
 	default:
 		break;

drivers/net/ethernet/intel/ice/ice_ptp.c

···
  */
 void ice_ptp_release(struct ice_pf *pf)
 {
+	if (!test_bit(ICE_FLAG_PTP, pf->flags))
+		return;
+
 	/* Disable timestamping for both Tx and Rx */
 	ice_ptp_cfg_timestamp(pf, false);
 

drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c

···
 
 RVU_DEBUG_FOPS(lmtst_map_table, lmtst_map_table_display, NULL);
 
+static void get_lf_str_list(struct rvu_block block, int pcifunc,
+			    char *lfs)
+{
+	int lf = 0, seq = 0, len = 0, prev_lf = block.lf.max;
+
+	for_each_set_bit(lf, block.lf.bmap, block.lf.max) {
+		if (lf >= block.lf.max)
+			break;
+
+		if (block.fn_map[lf] != pcifunc)
+			continue;
+
+		if (lf == prev_lf + 1) {
+			prev_lf = lf;
+			seq = 1;
+			continue;
+		}
+
+		if (seq)
+			len += sprintf(lfs + len, "-%d,%d", prev_lf, lf);
+		else
+			len += (len ? sprintf(lfs + len, ",%d", lf) :
+				      sprintf(lfs + len, "%d", lf));
+
+		prev_lf = lf;
+		seq = 0;
+	}
+
+	if (seq)
+		len += sprintf(lfs + len, "-%d", prev_lf);
+
+	lfs[len] = '\0';
+}
+
+static int get_max_column_width(struct rvu *rvu)
+{
+	int index, pf, vf, lf_str_size = 12, buf_size = 256;
+	struct rvu_block block;
+	u16 pcifunc;
+	char *buf;
+
+	buf = kzalloc(buf_size, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
+		for (vf = 0; vf <= rvu->hw->total_vfs; vf++) {
+			pcifunc = pf << 10 | vf;
+			if (!pcifunc)
+				continue;
+
+			for (index = 0; index < BLK_COUNT; index++) {
+				block = rvu->hw->block[index];
+				if (!strlen(block.name))
+					continue;
+
+				get_lf_str_list(block, pcifunc, buf);
+				if (lf_str_size <= strlen(buf))
+					lf_str_size = strlen(buf) + 1;
+			}
+		}
+	}
+
+	kfree(buf);
+	return lf_str_size;
+}
+
 /* Dumps current provisioning status of all RVU block LFs */
 static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 					  char __user *buffer,
 					  size_t count, loff_t *ppos)
 {
-	int index, off = 0, flag = 0, go_back = 0, len = 0;
+	int index, off = 0, flag = 0, len = 0, i = 0;
 	struct rvu *rvu = filp->private_data;
-	int lf, pf, vf, pcifunc;
+	int bytes_not_copied = 0;
 	struct rvu_block block;
-	int bytes_not_copied;
-	int lf_str_size = 12;
+	int pf, vf, pcifunc;
 	int buf_size = 2048;
+	int lf_str_size;
 	char *lfs;
 	char *buf;
 
···
 	buf = kzalloc(buf_size, GFP_KERNEL);
 	if (!buf)
 		return -ENOSPC;
+
+	/* Get the maximum width of a column */
+	lf_str_size = get_max_column_width(rvu);
 
 	lfs = kzalloc(lf_str_size, GFP_KERNEL);
 	if (!lfs) {
···
 					 "%-*s", lf_str_size,
 					 rvu->hw->block[index].name);
 		}
+
 	off += scnprintf(&buf[off], buf_size - 1 - off, "\n");
+	bytes_not_copied = copy_to_user(buffer + (i * off), buf, off);
+	if (bytes_not_copied)
+		goto out;
+
+	i++;
+	*ppos += off;
 	for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
 		for (vf = 0; vf <= rvu->hw->total_vfs; vf++) {
+			off = 0;
+			flag = 0;
 			pcifunc = pf << 10 | vf;
 			if (!pcifunc)
 				continue;
 
 			if (vf) {
 				sprintf(lfs, "PF%d:VF%d", pf, vf - 1);
-				go_back = scnprintf(&buf[off],
-						    buf_size - 1 - off,
-						    "%-*s", lf_str_size, lfs);
+				off = scnprintf(&buf[off],
+						buf_size - 1 - off,
+						"%-*s", lf_str_size, lfs);
 			} else {
 				sprintf(lfs, "PF%d", pf);
-				go_back = scnprintf(&buf[off],
-						    buf_size - 1 - off,
-						    "%-*s", lf_str_size, lfs);
+				off = scnprintf(&buf[off],
+						buf_size - 1 - off,
+						"%-*s", lf_str_size, lfs);
 			}
 
-			off += go_back;
-			for (index = 0; index < BLKTYPE_MAX; index++) {
+			for (index = 0; index < BLK_COUNT; index++) {
 				block = rvu->hw->block[index];
 				if (!strlen(block.name))
 					continue;
 				len = 0;
 				lfs[len] = '\0';
-				for (lf = 0; lf < block.lf.max; lf++) {
-					if (block.fn_map[lf] != pcifunc)
-						continue;
+				get_lf_str_list(block, pcifunc, lfs);
+				if (strlen(lfs))
 					flag = 1;
-					len += sprintf(&lfs[len], "%d,", lf);
-				}
 
-				if (flag)
-					len--;
-				lfs[len] = '\0';
 				off += scnprintf(&buf[off], buf_size - 1 - off,
 						 "%-*s", lf_str_size, lfs);
-				if (!strlen(lfs))
-					go_back += lf_str_size;
 			}
-			if (!flag)
-				off -= go_back;
-			else
-				flag = 0;
-			off--;
-			off +=	scnprintf(&buf[off], buf_size - 1 - off, "\n");
+			if (flag) {
+				off +=	scnprintf(&buf[off],
+						  buf_size - 1 - off, "\n");
+				bytes_not_copied = copy_to_user(buffer +
+								(i * off),
+								buf, off);
+				if (bytes_not_copied)
+					goto out;
+
+				i++;
+				*ppos += off;
+			}
 		}
 	}
 
-	bytes_not_copied = copy_to_user(buffer, buf, off);
+out:
 	kfree(lfs);
 	kfree(buf);
-
 	if (bytes_not_copied)
 		return -EFAULT;
 
-	*ppos = off;
-	return off;
+	return *ppos;
 }
 
 RVU_DEBUG_FOPS(rsrc_status, rsrc_attach_status, NULL);
···
 	if (cmd_buf)
 		ret = -EINVAL;
 
-	if (!strncmp(subtoken, "help", 4) || ret < 0) {
+	if (ret < 0 || !strncmp(subtoken, "help", 4)) {
 		dev_info(rvu->dev, "Use echo <%s-lf > qsize\n", blk_string);
 		goto qsize_write_done;
 	}
···
 	u16 pcifunc;
 	char *str;
 
+	/* Ingress policers do not exist on all platforms */
+	if (!nix_hw->ipolicer)
+		return 0;
+
 	for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) {
 		if (layer == BAND_PROF_INVAL_LAYER)
 			continue;
···
 	struct nix_ipolicer *ipolicer;
 	int layer;
 	char *str;
+
+	/* Ingress policers do not exist on all platforms */
+	if (!nix_hw->ipolicer)
+		return 0;
 
 	seq_puts(m, "\nBandwidth profile resource free count\n");
 	seq_puts(m, "=====================================\n");

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

···
 		return;
 
 	nix_hw = get_nix_hw(rvu->hw, blkaddr);
+	if (!nix_hw)
+		return;
+
 	vlan = &nix_hw->txvlan;
 
 	mutex_lock(&vlan->rsrc_lock);

drivers/net/ethernet/mellanox/mlxsw/pci.c

···
 	struct sk_buff *skb;
 	int err;
 
-	elem_info->u.rdq.skb = NULL;
 	skb = netdev_alloc_skb_ip_align(NULL, buf_len);
 	if (!skb)
 		return -ENOMEM;
-
-	/* Assume that wqe was previously zeroed. */
 
 	err = mlxsw_pci_wqe_frag_map(mlxsw_pci, wqe, 0, skb->data,
 				     buf_len, DMA_FROM_DEVICE);
···
 	struct pci_dev *pdev = mlxsw_pci->pdev;
 	struct mlxsw_pci_queue_elem_info *elem_info;
 	struct mlxsw_rx_info rx_info = {};
-	char *wqe;
+	char wqe[MLXSW_PCI_WQE_SIZE];
 	struct sk_buff *skb;
 	u16 byte_count;
 	int err;
 
 	elem_info = mlxsw_pci_queue_elem_info_consumer_get(q);
-	skb = elem_info->u.sdq.skb;
-	if (!skb)
-		return;
-	wqe = elem_info->elem;
-	mlxsw_pci_wqe_frag_unmap(mlxsw_pci, wqe, 0, DMA_FROM_DEVICE);
+	skb = elem_info->u.rdq.skb;
+	memcpy(wqe, elem_info->elem, MLXSW_PCI_WQE_SIZE);
 
 	if (q->consumer_counter++ != consumer_counter_limit)
 		dev_dbg_ratelimited(&pdev->dev, "Consumer counter does not match limit in RDQ\n");
+
+	err = mlxsw_pci_rdq_skb_alloc(mlxsw_pci, elem_info);
+	if (err) {
+		dev_err_ratelimited(&pdev->dev, "Failed to alloc skb for RDQ\n");
+		goto out;
+	}
+
+	mlxsw_pci_wqe_frag_unmap(mlxsw_pci, wqe, 0, DMA_FROM_DEVICE);
 
 	if (mlxsw_pci_cqe_lag_get(cqe_v, cqe)) {
 		rx_info.is_lag = true;
···
 	skb_put(skb, byte_count);
 	mlxsw_core_skb_receive(mlxsw_pci->core, skb, &rx_info);
 
-	memset(wqe, 0, q->elem_size);
-	err = mlxsw_pci_rdq_skb_alloc(mlxsw_pci, elem_info);
-	if (err)
-		dev_dbg_ratelimited(&pdev->dev, "Failed to alloc skb for RDQ\n");
+out:
 	/* Everything is set up, ring doorbell to pass elem to HW */
 	q->producer_counter++;
 	mlxsw_pci_queue_doorbell_producer_ring(mlxsw_pci, q);

drivers/net/ethernet/microchip/lan743x_main.c

···
 		ret = -EINVAL;
 		goto cleanup;
 	}
+	if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev,
+				      DMA_BIT_MASK(64))) {
+		if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev,
+					      DMA_BIT_MASK(32))) {
+			dev_warn(&tx->adapter->pdev->dev,
+				 "lan743x_: No suitable DMA available\n");
+			ret = -ENOMEM;
+			goto cleanup;
+		}
+	}
 	ring_allocation_size = ALIGN(tx->ring_size *
 				     sizeof(struct lan743x_tx_descriptor),
 				     PAGE_SIZE);
···
 				  index);
 }
 
-static int lan743x_rx_init_ring_element(struct lan743x_rx *rx, int index)
+static int lan743x_rx_init_ring_element(struct lan743x_rx *rx, int index,
+					gfp_t gfp)
 {
 	struct net_device *netdev = rx->adapter->netdev;
 	struct device *dev = &rx->adapter->pdev->dev;
···
 
 	descriptor = &rx->ring_cpu_ptr[index];
 	buffer_info = &rx->buffer_info[index];
-	skb = __netdev_alloc_skb(netdev, buffer_length, GFP_ATOMIC | GFP_DMA);
+	skb = __netdev_alloc_skb(netdev, buffer_length, gfp);
 	if (!skb)
 		return -ENOMEM;
 	dma_ptr = dma_map_single(dev, skb->data, buffer_length, DMA_FROM_DEVICE);
···
 
 	/* save existing skb, allocate new skb and map to dma */
 	skb = buffer_info->skb;
-	if (lan743x_rx_init_ring_element(rx, rx->last_head)) {
+	if (lan743x_rx_init_ring_element(rx, rx->last_head,
+					 GFP_ATOMIC | GFP_DMA)) {
 		/* failed to allocate next skb.
 		 * Memory is very low.
 		 * Drop this packet and reuse buffer.
···
 		ret = -EINVAL;
 		goto cleanup;
 	}
+	if (dma_set_mask_and_coherent(&rx->adapter->pdev->dev,
+				      DMA_BIT_MASK(64))) {
+		if (dma_set_mask_and_coherent(&rx->adapter->pdev->dev,
+					      DMA_BIT_MASK(32))) {
+			dev_warn(&rx->adapter->pdev->dev,
+				 "lan743x_: No suitable DMA available\n");
+			ret = -ENOMEM;
+			goto cleanup;
+		}
+	}
 	ring_allocation_size = ALIGN(rx->ring_size *
 				     sizeof(struct lan743x_rx_descriptor),
 				     PAGE_SIZE);
···
 
 	rx->last_head = 0;
 	for (index = 0; index < rx->ring_size; index++) {
-		ret = lan743x_rx_init_ring_element(rx, index);
+		ret = lan743x_rx_init_ring_element(rx, index, GFP_KERNEL);
 		if (ret)
 			goto cleanup;
 	}
 	return 0;
 
 cleanup:
+	netif_warn(rx->adapter, ifup, rx->adapter->netdev,
+		   "Error allocating memory for LAN743x\n");
+
 	lan743x_rx_ring_cleanup(rx);
 	return ret;
 }
···
 	if (ret) {
 		netif_err(adapter, probe, adapter->netdev,
 			  "lan743x_hardware_init returned %d\n", ret);
+		lan743x_pci_cleanup(adapter);
+		return ret;
 	}
 
 	/* open netdev when netdev is at running state while resume.

drivers/net/ethernet/netronome/nfp/bpf/main.c

···
 nfp_bpf_check_mtu(struct nfp_app *app, struct net_device *netdev, int new_mtu)
 {
 	struct nfp_net *nn = netdev_priv(netdev);
-	unsigned int max_mtu;
+	struct nfp_bpf_vnic *bv;
+	struct bpf_prog *prog;
 
 	if (~nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF)
 		return 0;
 
-	max_mtu = nn_readb(nn, NFP_NET_CFG_BPF_INL_MTU) * 64 - 32;
-	if (new_mtu > max_mtu) {
-		nn_info(nn, "BPF offload active, MTU over %u not supported\n",
-			max_mtu);
+	if (nn->xdp_hw.prog) {
+		prog = nn->xdp_hw.prog;
+	} else {
+		bv = nn->app_priv;
+		prog = bv->tc_prog;
+	}
+
+	if (nfp_bpf_offload_check_mtu(nn, prog, new_mtu)) {
+		nn_info(nn, "BPF offload active, potential packet access beyond hardware packet boundary");
 		return -EBUSY;
 	}
 	return 0;

drivers/net/ethernet/netronome/nfp/bpf/main.h

···
 void nfp_bpf_jit_prepare(struct nfp_prog *nfp_prog);
 int nfp_bpf_jit(struct nfp_prog *prog);
 bool nfp_bpf_supported_opcode(u8 code);
+bool nfp_bpf_offload_check_mtu(struct nfp_net *nn, struct bpf_prog *prog,
+			       unsigned int mtu);
 
 int nfp_verify_insn(struct bpf_verifier_env *env, int insn_idx,
 		    int prev_insn_idx);

drivers/net/ethernet/netronome/nfp/bpf/offload.c

···
 	return 0;
 }
 
+bool nfp_bpf_offload_check_mtu(struct nfp_net *nn, struct bpf_prog *prog,
+			       unsigned int mtu)
+{
+	unsigned int fw_mtu, pkt_off;
+
+	fw_mtu = nn_readb(nn, NFP_NET_CFG_BPF_INL_MTU) * 64 - 32;
+	pkt_off = min(prog->aux->max_pkt_offset, mtu);
+
+	return fw_mtu < pkt_off;
+}
+
 static int
 nfp_net_bpf_load(struct nfp_net *nn, struct bpf_prog *prog,
 		 struct netlink_ext_ack *extack)
 {
 	struct nfp_prog *nfp_prog = prog->aux->offload->dev_priv;
-	unsigned int fw_mtu, pkt_off, max_stack, max_prog_len;
+	unsigned int max_stack, max_prog_len;
 	dma_addr_t dma_addr;
 	void *img;
 	int err;
 
-	fw_mtu = nn_readb(nn, NFP_NET_CFG_BPF_INL_MTU) * 64 - 32;
-	pkt_off = min(prog->aux->max_pkt_offset, nn->dp.netdev->mtu);
-	if (fw_mtu < pkt_off) {
+	if (nfp_bpf_offload_check_mtu(nn, prog, nn->dp.netdev->mtu)) {
 		NL_SET_ERR_MSG_MOD(extack, "BPF offload not supported with potential packet access beyond HW packet split boundary");
 		return -EOPNOTSUPP;
 	}

drivers/net/ethernet/nxp/lpc_eth.c

···
 	napi_disable(&pldat->napi);
 	netif_stop_queue(ndev);
 
-	if (ndev->phydev)
-		phy_stop(ndev->phydev);
-
 	spin_lock_irqsave(&pldat->lock, flags);
 	__lpc_eth_reset(pldat);
 	netif_carrier_off(ndev);
···
 	writel(0, LPC_ENET_MAC2(pldat->net_base));
 	spin_unlock_irqrestore(&pldat->lock, flags);
 
+	if (ndev->phydev)
+		phy_stop(ndev->phydev);
 	clk_disable_unprepare(pldat->clk);
 
 	return 0;

drivers/net/ethernet/realtek/r8169_main.c

···
 	{ PCI_VDEVICE(REALTEK,	0x8129) },
 	{ PCI_VDEVICE(REALTEK,	0x8136), RTL_CFG_NO_GBIT },
 	{ PCI_VDEVICE(REALTEK,	0x8161) },
+	{ PCI_VDEVICE(REALTEK,	0x8162) },
 	{ PCI_VDEVICE(REALTEK,	0x8167) },
 	{ PCI_VDEVICE(REALTEK,	0x8168) },
 	{ PCI_VDEVICE(NCUBE,	0x8168) },

drivers/net/phy/phy.c

···
 	}
 }
 
-int phy_ethtool_ksettings_set(struct phy_device *phydev,
-			      const struct ethtool_link_ksettings *cmd)
-{
-	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
-	u8 autoneg = cmd->base.autoneg;
-	u8 duplex = cmd->base.duplex;
-	u32 speed = cmd->base.speed;
-
-	if (cmd->base.phy_address != phydev->mdio.addr)
-		return -EINVAL;
-
-	linkmode_copy(advertising, cmd->link_modes.advertising);
-
-	/* We make sure that we don't pass unsupported values in to the PHY */
-	linkmode_and(advertising, advertising, phydev->supported);
-
-	/* Verify the settings we care about. */
-	if (autoneg != AUTONEG_ENABLE && autoneg != AUTONEG_DISABLE)
-		return -EINVAL;
-
-	if (autoneg == AUTONEG_ENABLE && linkmode_empty(advertising))
-		return -EINVAL;
-
-	if (autoneg == AUTONEG_DISABLE &&
-	    ((speed != SPEED_1000 &&
-	      speed != SPEED_100 &&
-	      speed != SPEED_10) ||
-	     (duplex != DUPLEX_HALF &&
-	      duplex != DUPLEX_FULL)))
-		return -EINVAL;
-
-	phydev->autoneg = autoneg;
-
-	if (autoneg == AUTONEG_DISABLE) {
-		phydev->speed = speed;
-		phydev->duplex = duplex;
-	}
-
-	linkmode_copy(phydev->advertising, advertising);
-
-	linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
-			 phydev->advertising, autoneg == AUTONEG_ENABLE);
-
-	phydev->master_slave_set = cmd->base.master_slave_cfg;
-	phydev->mdix_ctrl = cmd->base.eth_tp_mdix_ctrl;
-
-	/* Restart the PHY */
-	phy_start_aneg(phydev);
-
-	return 0;
-}
-EXPORT_SYMBOL(phy_ethtool_ksettings_set);
-
 void phy_ethtool_ksettings_get(struct phy_device *phydev,
 			       struct ethtool_link_ksettings *cmd)
 {
+	mutex_lock(&phydev->lock);
 	linkmode_copy(cmd->link_modes.supported, phydev->supported);
 	linkmode_copy(cmd->link_modes.advertising, phydev->advertising);
 	linkmode_copy(cmd->link_modes.lp_advertising, phydev->lp_advertising);
···
 	cmd->base.autoneg = phydev->autoneg;
 	cmd->base.eth_tp_mdix_ctrl = phydev->mdix_ctrl;
 	cmd->base.eth_tp_mdix = phydev->mdix;
+	mutex_unlock(&phydev->lock);
 }
 EXPORT_SYMBOL(phy_ethtool_ksettings_get);
 
···
 }
 
 /**
+ * _phy_start_aneg - start auto-negotiation for this PHY device
+ * @phydev: the phy_device struct
+ *
+ * Description: Sanitizes the settings (if we're not autonegotiating
+ *   them), and then calls the driver's config_aneg function.
+ *   If the PHYCONTROL Layer is operating, we change the state to
+ *   reflect the beginning of Auto-negotiation or forcing.
+ */
+static int _phy_start_aneg(struct phy_device *phydev)
+{
+	int err;
+
+	lockdep_assert_held(&phydev->lock);
+
+	if (!phydev->drv)
+		return -EIO;
+
+	if (AUTONEG_DISABLE == phydev->autoneg)
+		phy_sanitize_settings(phydev);
+
+	err = phy_config_aneg(phydev);
+	if (err < 0)
+		return err;
+
+	if (phy_is_started(phydev))
+		err = phy_check_link_status(phydev);
+
+	return err;
+}
+
+/**
  * phy_start_aneg - start auto-negotiation for this PHY device
  * @phydev: the phy_device struct
  *
···
 {
 	int err;
 
-	if (!phydev->drv)
-		return -EIO;
-
 	mutex_lock(&phydev->lock);
-
-	if (AUTONEG_DISABLE == phydev->autoneg)
-		phy_sanitize_settings(phydev);
-
-	err = phy_config_aneg(phydev);
-	if (err < 0)
-		goto out_unlock;
-
-	if (phy_is_started(phydev))
-		err = phy_check_link_status(phydev);
-out_unlock:
+	err = _phy_start_aneg(phydev);
 	mutex_unlock(&phydev->lock);
 
 	return err;
···
 
 	return ret < 0 ? ret : 0;
 }
+
+int phy_ethtool_ksettings_set(struct phy_device *phydev,
+			      const struct ethtool_link_ksettings *cmd)
+{
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
+	u8 autoneg = cmd->base.autoneg;
+	u8 duplex = cmd->base.duplex;
+	u32 speed = cmd->base.speed;
+
+	if (cmd->base.phy_address != phydev->mdio.addr)
+		return -EINVAL;
+
+	linkmode_copy(advertising, cmd->link_modes.advertising);
+
+	/* We make sure that we don't pass unsupported values in to the PHY */
+	linkmode_and(advertising, advertising, phydev->supported);
+
+	/* Verify the settings we care about. */
+	if (autoneg != AUTONEG_ENABLE && autoneg != AUTONEG_DISABLE)
+		return -EINVAL;
+
+	if (autoneg == AUTONEG_ENABLE && linkmode_empty(advertising))
+		return -EINVAL;
+
+	if (autoneg == AUTONEG_DISABLE &&
+	    ((speed != SPEED_1000 &&
+	      speed != SPEED_100 &&
+	      speed != SPEED_10) ||
+	     (duplex != DUPLEX_HALF &&
+	      duplex != DUPLEX_FULL)))
+		return -EINVAL;
+
+	mutex_lock(&phydev->lock);
+	phydev->autoneg = autoneg;
+
+	if (autoneg == AUTONEG_DISABLE) {
+		phydev->speed = speed;
+		phydev->duplex = duplex;
+	}
+
+	linkmode_copy(phydev->advertising, advertising);
+
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
+			 phydev->advertising, autoneg == AUTONEG_ENABLE);
+
+	phydev->master_slave_set = cmd->base.master_slave_cfg;
+	phydev->mdix_ctrl = cmd->base.eth_tp_mdix_ctrl;
+
+	/* Restart the PHY */
+	_phy_start_aneg(phydev);
+
+	mutex_unlock(&phydev->lock);
+	return 0;
+}
+EXPORT_SYMBOL(phy_ethtool_ksettings_set);
 
 /**
  * phy_speed_down - set speed to lowest speed supported by both link partners

drivers/net/usb/lan78xx.c

···
 
 	dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out, 1);
 
+	/* Reject broken descriptors. */
+	if (dev->maxpacket == 0) {
+		ret = -ENODEV;
+		goto out4;
+	}
+
 	/* driver requires remote-wakeup capability during autosuspend. */
 	intf->needs_remote_wakeup = 1;
 

drivers/net/usb/usbnet.c

···
 	dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
 	if (dev->maxpacket == 0) {
 		/* that is a broken device */
+		status = -ENODEV;
 		goto out4;
 	}
 

drivers/net/vmxnet3/vmxnet3_drv.c

···
 	vmxnet3_free_intr_resources(adapter);
 
 	netif_device_detach(netdev);
-	netif_tx_stop_all_queues(netdev);
 
 	/* Create wake-up filters. */
 	pmConf = adapter->pm_conf;

drivers/net/xen-netfront.c

···
 
 	dev_dbg(&dev->dev, "%s\n", dev->nodename);
 
+	netif_tx_lock_bh(info->netdev);
+	netif_device_detach(info->netdev);
+	netif_tx_unlock_bh(info->netdev);
+
 	xennet_disconnect_backend(info);
 	return 0;
 }
···
 	 * domain a kick because we've probably just requeued some
 	 * packets.
 	 */
+	netif_tx_lock_bh(np->netdev);
+	netif_device_attach(np->netdev);
+	netif_tx_unlock_bh(np->netdev);
+
 	netif_carrier_on(np->netdev);
 	for (j = 0; j < num_queues; ++j) {
 		queue = &np->queues[j];

drivers/nfc/port100.c

···
 
 	skb = port100_alloc_skb(dev, 0);
 	if (!skb)
-		return -ENOMEM;
+		return 0;
 
 	resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb);
 	if (IS_ERR(resp))
-		return PTR_ERR(resp);
+		return 0;
 
 	if (resp->len < 8)
 		mask = 0;

drivers/pinctrl/bcm/pinctrl-ns.c

···
 
 #include <linux/err.h>
 #include <linux/io.h>
-#include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
···
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>
 #include <linux/platform_device.h>
-#include <linux/regmap.h>
 #include <linux/slab.h>
 
 #define FLAG_BCM4708		BIT(1)
···
 	struct device *dev;
 	unsigned int chipset_flag;
 	struct pinctrl_dev *pctldev;
-	struct regmap *regmap;
-	u32 offset;
+	void __iomem *base;
 
 	struct pinctrl_desc pctldesc;
 	struct ns_pinctrl_group *groups;
···
 		unset |= BIT(pin_number);
 	}
 
-	regmap_read(ns_pinctrl->regmap, ns_pinctrl->offset, &tmp);
+	tmp = readl(ns_pinctrl->base);
 	tmp &= ~unset;
-	regmap_write(ns_pinctrl->regmap, ns_pinctrl->offset, tmp);
+	writel(tmp, ns_pinctrl->base);
 
 	return 0;
 }
···
 static int ns_pinctrl_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct device_node *np = dev->of_node;
 	const struct of_device_id *of_id;
 	struct ns_pinctrl *ns_pinctrl;
 	struct pinctrl_desc *pctldesc;
 	struct pinctrl_pin_desc *pin;
 	struct ns_pinctrl_group *group;
 	struct ns_pinctrl_function *function;
+	struct resource *res;
 	int i;
 
 	ns_pinctrl = devm_kzalloc(dev, sizeof(*ns_pinctrl), GFP_KERNEL);
···
 		return -EINVAL;
 	ns_pinctrl->chipset_flag = (uintptr_t)of_id->data;
 
-	ns_pinctrl->regmap = syscon_node_to_regmap(of_get_parent(np));
-	if (IS_ERR(ns_pinctrl->regmap)) {
-		int err = PTR_ERR(ns_pinctrl->regmap);
-
-		dev_err(dev, "Failed to map pinctrl regs: %d\n", err);
-
-		return err;
-	}
-
-	if (of_property_read_u32(np, "offset", &ns_pinctrl->offset)) {
-		dev_err(dev, "Failed to get register offset\n");
-		return -ENOENT;
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+					   "cru_gpio_control");
+	ns_pinctrl->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ns_pinctrl->base)) {
+		dev_err(dev, "Failed to map pinctrl regs\n");
+		return PTR_ERR(ns_pinctrl->base);
 	}
 
 	memcpy(pctldesc, &ns_pinctrl_desc, sizeof(*pctldesc));

drivers/pinctrl/pinctrl-amd.c

···
 	.pin_config_group_set = amd_pinconf_group_set,
 };
 
+static void amd_gpio_irq_init(struct amd_gpio *gpio_dev)
+{
+	struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
+	unsigned long flags;
+	u32 pin_reg, mask;
+	int i;
+
+	mask = BIT(WAKE_CNTRL_OFF_S0I3) | BIT(WAKE_CNTRL_OFF_S3) |
+		BIT(INTERRUPT_MASK_OFF) | BIT(INTERRUPT_ENABLE_OFF) |
+		BIT(WAKE_CNTRL_OFF_S4);
+
+	for (i = 0; i < desc->npins; i++) {
+		int pin = desc->pins[i].number;
+		const struct pin_desc *pd = pin_desc_get(gpio_dev->pctrl, pin);
+
+		if (!pd)
+			continue;
+
+		raw_spin_lock_irqsave(&gpio_dev->lock, flags);
+
+		pin_reg = readl(gpio_dev->base + i * 4);
+		pin_reg &= ~mask;
+		writel(pin_reg, gpio_dev->base + i * 4);
+
+		raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
+	}
+}
+
 #ifdef CONFIG_PM_SLEEP
 static bool amd_gpio_should_save(struct amd_gpio *gpio_dev, unsigned int pin)
 {
···
 		dev_err(&pdev->dev, "Couldn't register pinctrl driver\n");
 		return PTR_ERR(gpio_dev->pctrl);
 	}
+
+	/* Disable and mask interrupts */
+	amd_gpio_irq_init(gpio_dev);
 
 	girq = &gpio_dev->gc.irq;
 	girq->chip = &amd_gpio_irqchip;

drivers/pinctrl/stm32/pinctrl-stm32.c

···
 	struct stm32_pinctrl_group *g = pctl->groups;
 	int i;
 
-	for (i = g->pin; i < g->pin + pctl->ngroups; i++)
-		stm32_pinctrl_restore_gpio_regs(pctl, i);
+	for (i = 0; i < pctl->ngroups; i++, g++)
+		stm32_pinctrl_restore_gpio_regs(pctl, g->pin);
 
 	return 0;
 }

drivers/reset/Kconfig

···
 	bool
 
 config RESET_PISTACHIO
-	bool "Pistachio Reset Driver" if COMPILE_TEST
-	default MACH_PISTACHIO
+	bool "Pistachio Reset Driver"
+	depends on MIPS || COMPILE_TEST
 	help
 	  This enables the reset driver for ImgTec Pistachio SoCs.
 

drivers/reset/reset-brcmstb-rescal.c

···
 	}
 
 	ret = readl_poll_timeout(base + BRCM_RESCAL_STATUS, reg,
-				 !(reg & BRCM_RESCAL_STATUS_BIT), 100, 1000);
+				 (reg & BRCM_RESCAL_STATUS_BIT), 100, 1000);
 	if (ret) {
 		dev_err(data->dev, "time out on SATA/PCIe rescal\n");
 		return ret;

drivers/reset/reset-socfpga.c

···
 	for_each_matching_node(np, socfpga_early_reset_dt_ids)
 		a10_reset_init(np);
 }
+
+/*
+ * The early driver is problematic, because it doesn't register
+ * itself as a driver. This causes certain device links to prevent
+ * consumer devices from probing. The hacky solution is to register
+ * an empty driver, whose only job is to attach itself to the reset
+ * manager and call probe.
+ */
+static const struct of_device_id socfpga_reset_dt_ids[] = {
+	{ .compatible = "altr,rst-mgr", },
+	{ /* sentinel */ },
+};
+
+static int reset_simple_probe(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static struct platform_driver reset_socfpga_driver = {
+	.probe	= reset_simple_probe,
+	.driver = {
+		.name		= "socfpga-reset",
+		.of_match_table	= socfpga_reset_dt_ids,
+	},
+};
+builtin_platform_driver(reset_socfpga_driver);

drivers/reset/tegra/reset-bpmp.c

···
 	struct tegra_bpmp *bpmp = to_tegra_bpmp(rstc);
 	struct mrq_reset_request request;
 	struct tegra_bpmp_message msg;
+	int err;
 
 	memset(&request, 0, sizeof(request));
 	request.cmd = command;
···
 	msg.tx.data = &request;
 	msg.tx.size = sizeof(request);
 
-	return tegra_bpmp_transfer(bpmp, &msg);
+	err = tegra_bpmp_transfer(bpmp, &msg);
+	if (err)
+		return err;
+	if (msg.rx.ret)
+		return -EINVAL;
+
+	return 0;
 }
 
 static int tegra_bpmp_reset_module(struct reset_controller_dev *rstc,

drivers/scsi/hosts.c

···
 		goto fail;
 	}
 
-	shost->cmd_per_lun = min_t(short, shost->cmd_per_lun,
+	/* Use min_t(int, ...) in case shost->can_queue exceeds SHRT_MAX */
+	shost->cmd_per_lun = min_t(int, shost->cmd_per_lun,
 				   shost->can_queue);
 
 	error = scsi_init_sense_cache(shost);

drivers/scsi/mpi3mr/mpi3mr_os.c

···
 	shost->max_lun = -1;
 	shost->unique_id = mrioc->id;
 
-	shost->max_channel = 1;
+	shost->max_channel = 0;
 	shost->max_id = 0xFFFFFFFF;
 
 	if (prot_mask >= 0)

drivers/scsi/qla2xxx/qla_bsg.c

···
 	goto done_free_fcport;
 
 done_free_fcport:
-	if (bsg_request->msgcode == FC_BSG_RPT_ELS)
+	if (bsg_request->msgcode != FC_BSG_RPT_ELS)
 		qla2x00_free_fcport(fcport);
 done:
 	return rval;

drivers/scsi/qla2xxx/qla_os.c

···
 					ql_dbg_pci(ql_dbg_init, ha->pdev,
 					    0xe0ee, "%s: failed alloc dsd\n",
 					    __func__);
-					return 1;
+					return -ENOMEM;
 				}
 				ha->dif_bundle_kallocs++;
 

drivers/scsi/qla2xxx/qla_target.c

···
 			"RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
 			vha->flags.online, qla2x00_reset_active(vha),
 			cmd->reset_count, qpair->chip_reset);
-		spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
-		return 0;
+		goto out_unmap_unlock;
 	}
 
 	/* Does F/W have an IOCBs for this request */
···
 	prm.sg = NULL;
 	prm.req_cnt = 1;
 
-	/* Calculate number of entries and segments required */
-	if (qlt_pci_map_calc_cnt(&prm) != 0)
-		return -EAGAIN;
-
 	if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
 	    (cmd->sess && cmd->sess->deleted)) {
 		/*
···
 			cmd->reset_count, qpair->chip_reset);
 		return 0;
 	}
+
+	/* Calculate number of entries and segments required */
+	if (qlt_pci_map_calc_cnt(&prm) != 0)
+		return -EAGAIN;
 
 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
 	/* Does F/W have an IOCBs for this request */
···
 	    be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));
 
 	BUG_ON(cmd->cmd_in_wq);
-
-	if (cmd->sg_mapped)
-		qlt_unmap_sg(cmd->vha, cmd);
 
 	if (!cmd->q_full)
 		qlt_decr_num_pend_cmds(cmd->vha);

drivers/scsi/scsi.c

···
  */
 void scsi_device_put(struct scsi_device *sdev)
 {
-	module_put(sdev->host->hostt->module);
+	struct module *mod = sdev->host->hostt->module;
+
 	put_device(&sdev->sdev_gendev);
+	module_put(mod);
 }
 EXPORT_SYMBOL(scsi_device_put);
 

drivers/scsi/scsi_sysfs.c

···
 	struct scsi_vpd *vpd_pg80 = NULL, *vpd_pg83 = NULL;
 	struct scsi_vpd *vpd_pg0 = NULL, *vpd_pg89 = NULL;
 	unsigned long flags;
+	struct module *mod;
 
 	sdev = container_of(work, struct scsi_device, ew.work);
+
+	mod = sdev->host->hostt->module;
 
 	scsi_dh_release_device(sdev);
 
···
 
 	if (parent)
 		put_device(parent);
+	module_put(mod);
 }
 
 static void scsi_device_dev_release(struct device *dev)
 {
 	struct scsi_device *sdp = to_scsi_device(dev);
+
+	/* Set module pointer as NULL in case of module unloading */
+	if (!try_module_get(sdp->host->hostt->module))
+		sdp->host->hostt->module = NULL;
+
 	execute_in_process_context(scsi_device_dev_release_usercontext,
 				   &sdp->ew);
 }

drivers/scsi/scsi_transport_iscsi.c

···
 			session->recovery_tmo = value;
 		break;
 	default:
-		err = transport->set_param(conn, ev->u.set_param.param,
-					   data, ev->u.set_param.len);
 		if ((conn->state == ISCSI_CONN_BOUND) ||
 			(conn->state == ISCSI_CONN_UP)) {
 			err = transport->set_param(conn, ev->u.set_param.param,

drivers/scsi/sd.c

···
 static int sd_resume_runtime(struct device *dev)
 {
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
-	struct scsi_device *sdp = sdkp->device;
+	struct scsi_device *sdp;
+
+	if (!sdkp)	/* E.g.: runtime resume at the start of sd_probe() */
+		return 0;
+
+	sdp = sdkp->device;
 
 	if (sdp->ignore_media_change) {
 		/* clear the device's sense data */

drivers/scsi/storvsc_drv.c

···
 	foreach_vmbus_pkt(desc, channel) {
 		struct vstor_packet *packet = hv_pkt_data(desc);
 		struct storvsc_cmd_request *request = NULL;
+		u32 pktlen = hv_pkt_datalen(desc);
 		u64 rqst_id = desc->trans_id;
+		u32 minlen = rqst_id ? sizeof(struct vstor_packet) -
+			stor_device->vmscsi_size_delta : sizeof(enum vstor_packet_operation);
 
-		if (hv_pkt_datalen(desc) < sizeof(struct vstor_packet) -
-				stor_device->vmscsi_size_delta) {
-			dev_err(&device->device, "Invalid packet len\n");
+		if (pktlen < minlen) {
+			dev_err(&device->device,
+				"Invalid pkt: id=%llu, len=%u, minlen=%u\n",
+				rqst_id, pktlen, minlen);
 			continue;
 		}
 
···
 			if (rqst_id == 0) {
 				/*
 				 * storvsc_on_receive() looks at the vstor_packet in the message
-				 * from the ring buffer.  If the operation in the vstor_packet is
-				 * COMPLETE_IO, then we call storvsc_on_io_completion(), and
-				 * dereference the guest memory address.  Make sure we don't call
-				 * storvsc_on_io_completion() with a guest memory address that is
-				 * zero if Hyper-V were to construct and send such a bogus packet.
+				 * from the ring buffer.
+				 *
+				 * - If the operation in the vstor_packet is COMPLETE_IO, then
+				 *   we call storvsc_on_io_completion(), and dereference the
+				 *   guest memory address.  Make sure we don't call
+				 *   storvsc_on_io_completion() with a guest memory address
+				 *   that is zero if Hyper-V were to construct and send such
+				 *   a bogus packet.
+				 *
+				 * - If the operation in the vstor_packet is FCHBA_DATA, then
+				 *   we call cache_wwn(), and access the data payload area of
+				 *   the packet (wwn_packet); however, there is no guarantee
+				 *   that the packet is big enough to contain such area.
+				 *   Future-proof the code by rejecting such a bogus packet.
 				 */
-				if (packet->operation == VSTOR_OPERATION_COMPLETE_IO) {
+				if (packet->operation == VSTOR_OPERATION_COMPLETE_IO ||
+				    packet->operation == VSTOR_OPERATION_FCHBA_DATA) {
 					dev_err(&device->device, "Invalid packet with ID of 0\n");
 					continue;
 				}

drivers/scsi/ufs/ufshcd-pci.c

···
 
 static int ufs_intel_resume(struct ufs_hba *hba, enum ufs_pm_op op)
 {
-	/*
-	 * To support S4 (suspend-to-disk) with spm_lvl other than 5, the base
-	 * address registers must be restored because the restore kernel can
-	 * have used different addresses.
-	 */
-	ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr),
-		      REG_UTP_TRANSFER_REQ_LIST_BASE_L);
-	ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr),
-		      REG_UTP_TRANSFER_REQ_LIST_BASE_H);
-	ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr),
-		      REG_UTP_TASK_REQ_LIST_BASE_L);
-	ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr),
-		      REG_UTP_TASK_REQ_LIST_BASE_H);
-
 	if (ufshcd_is_link_hibern8(hba)) {
 		int ret = ufshcd_uic_hibern8_exit(hba);
 
···
 	.resume			= ufs_intel_resume,
 	.device_reset		= ufs_intel_device_reset,
 };
+
+#ifdef CONFIG_PM_SLEEP
+static int ufshcd_pci_restore(struct device *dev)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+
+	/* Force a full reset and restore */
+	ufshcd_set_link_off(hba);
+
+	return ufshcd_system_resume(dev);
+}
+#endif
 
 /**
  * ufshcd_pci_shutdown - main function to put the controller in reset state
···
 }
 
 static const struct dev_pm_ops ufshcd_pci_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
 	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 #ifdef CONFIG_PM_SLEEP
+	.suspend	= ufshcd_system_suspend,
+	.resume		= ufshcd_system_resume,
+	.freeze		= ufshcd_system_suspend,
+	.thaw		= ufshcd_system_resume,
+	.poweroff	= ufshcd_system_suspend,
+	.restore	= ufshcd_pci_restore,
 	.prepare	= ufshcd_suspend_prepare,
 	.complete	= ufshcd_resume_complete,
 #endif

drivers/spi/spi-altera-dfl.c

···
 	if (!master)
 		return -ENOMEM;
 
-	master->bus_num = dfl_dev->id;
+	master->bus_num = -1;
 
 	hw = spi_master_get_devdata(master);
 

drivers/spi/spi-altera-platform.c

···
 		return err;
 
 	/* setup the master state. */
-	master->bus_num = pdev->id;
+	master->bus_num = -1;
 
 	if (pdata) {
 		if (pdata->num_chipselect > ALTERA_SPI_MAX_CS) {

drivers/spi/spi-pl022.c

···
 				return -EINVAL;
 			}
 		} else {
-			if (chip_info->duplex != SSP_MICROWIRE_CHANNEL_FULL_DUPLEX)
+			if (chip_info->duplex != SSP_MICROWIRE_CHANNEL_FULL_DUPLEX) {
 				dev_err(&pl022->adev->dev,
 					"Microwire half duplex mode requested,"
 					" but this is only available in the"
 					" ST version of PL022\n");
-			return -EINVAL;
+				return -EINVAL;
+			}
 		}
 	}
 	return 0;

drivers/spi/spi-tegra20-slink.c

···
 	return 0;
 }
 
-static int tegra_slink_runtime_resume(struct device *dev)
+static int __maybe_unused tegra_slink_runtime_resume(struct device *dev)
 {
 	struct spi_master *master = dev_get_drvdata(dev);
 	struct tegra_slink_data *tspi = spi_master_get_devdata(master);

drivers/vdpa/vdpa_user/vduse_dev.c

···
 	struct vdpa_callback config_cb;
 	struct work_struct inject;
 	spinlock_t irq_lock;
+	struct rw_semaphore rwsem;
 	int minor;
 	bool broken;
 	bool connected;
···
 	if (domain->bounce_map)
 		vduse_domain_reset_bounce_map(domain);
 
+	down_write(&dev->rwsem);
+
 	dev->status = 0;
 	dev->driver_features = 0;
 	dev->generation++;
···
 		flush_work(&vq->inject);
 		flush_work(&vq->kick);
 	}
+
+	up_write(&dev->rwsem);
 }
 
 static int vduse_vdpa_set_vq_address(struct vdpa_device *vdpa, u16 idx,
···
 	spin_unlock_irq(&vq->irq_lock);
 }
 
+static int vduse_dev_queue_irq_work(struct vduse_dev *dev,
+				    struct work_struct *irq_work)
+{
+	int ret = -EINVAL;
+
+	down_read(&dev->rwsem);
+	if (!(dev->status & VIRTIO_CONFIG_S_DRIVER_OK))
+		goto unlock;
+
+	ret = 0;
+	queue_work(vduse_irq_wq, irq_work);
+unlock:
+	up_read(&dev->rwsem);
+
+	return ret;
+}
+
 static long vduse_dev_ioctl(struct file *file, unsigned int cmd,
 			    unsigned long arg)
 {
···
 		break;
 	}
 	case VDUSE_DEV_INJECT_CONFIG_IRQ:
-		ret = 0;
-		queue_work(vduse_irq_wq, &dev->inject);
+		ret = vduse_dev_queue_irq_work(dev, &dev->inject);
 		break;
 	case VDUSE_VQ_SETUP: {
 		struct vduse_vq_config config;
···
 		if (index >= dev->vq_num)
 			break;
 
-		ret = 0;
 		index = array_index_nospec(index, dev->vq_num);
-		queue_work(vduse_irq_wq, &dev->vqs[index].inject);
+		ret = vduse_dev_queue_irq_work(dev, &dev->vqs[index].inject);
 		break;
 	}
 	default:
···
 	INIT_LIST_HEAD(&dev->send_list);
 	INIT_LIST_HEAD(&dev->recv_list);
 	spin_lock_init(&dev->irq_lock);
+	init_rwsem(&dev->rwsem);
 
 	INIT_WORK(&dev->inject, vduse_dev_irq_inject);
 	init_waitqueue_head(&dev->waitq);

drivers/virtio/virtio_ring.c

···
 	/* Last one doesn't continue. */
 	desc[prev].flags &= cpu_to_virtio16(_vq->vdev, ~VRING_DESC_F_NEXT);
 	if (!indirect && vq->use_dma_api)
-		vq->split.desc_extra[prev & (vq->split.vring.num - 1)].flags =
+		vq->split.desc_extra[prev & (vq->split.vring.num - 1)].flags &=
 			~VRING_DESC_F_NEXT;
 
 	if (indirect) {

drivers/watchdog/iTCO_wdt.c

···
 #define TCOBASE(p)	((p)->tco_res->start)
 /* SMI Control and Enable Register */
 #define SMI_EN(p)	((p)->smi_res->start)
-#define TCO_EN		(1 << 13)
-#define GBL_SMI_EN	(1 << 0)
 
 #define TCO_RLD(p)	(TCOBASE(p) + 0x00) /* TCO Timer Reload/Curr. Value */
 #define TCOv1_TMR(p)	(TCOBASE(p) + 0x01) /* TCOv1 Timer Initial Value*/
···
 
 	tmrval = seconds_to_ticks(p, t);
 
-	/*
-	 * If TCO SMIs are off, the timer counts down twice before rebooting.
-	 * Otherwise, the BIOS generally reboots when the SMI triggers.
-	 */
-	if (p->smi_res &&
-	    (inl(SMI_EN(p)) & (TCO_EN | GBL_SMI_EN)) != (TCO_EN | GBL_SMI_EN))
+	/* For TCO v1 the timer counts down twice before rebooting */
+	if (p->iTCO_version == 1)
 		tmrval /= 2;
 
 	/* from the specs: */
···
 		 * Disables TCO logic generating an SMI#
 		 */
 		val32 = inl(SMI_EN(p));
-		val32 &= ~TCO_EN;	/* Turn off SMI clearing watchdog */
+		val32 &= 0xffffdfff;	/* Turn off SMI clearing watchdog */
 		outl(val32, SMI_EN(p));
 	}
 

drivers/watchdog/ixp4xx_wdt.c

···
 	iwdt = devm_kzalloc(dev, sizeof(*iwdt), GFP_KERNEL);
 	if (!iwdt)
 		return -ENOMEM;
-	iwdt->base = dev->platform_data;
+	iwdt->base = (void __iomem *)dev->platform_data;
 
 	/*
 	 * Retrieve rate from a fixed clock from the device tree if

drivers/watchdog/omap_wdt.c

···
 			wdev->wdog.bootstatus = WDIOF_CARDRESET;
 	}
 
-	if (!early_enable)
+	if (early_enable) {
+		omap_wdt_start(&wdev->wdog);
+		set_bit(WDOG_HW_RUNNING, &wdev->wdog.status);
+	} else {
 		omap_wdt_disable(wdev);
+	}
 
 	ret = watchdog_register_device(&wdev->wdog);
 	if (ret) {

drivers/watchdog/sbsa_gwdt.c

···
 	if (gwdt->version == 0)
 		return readl(gwdt->control_base + SBSA_GWDT_WOR);
 	else
-		return readq(gwdt->control_base + SBSA_GWDT_WOR);
+		return lo_hi_readq(gwdt->control_base + SBSA_GWDT_WOR);
 }
 
 static void sbsa_gwdt_reg_write(u64 val, struct sbsa_gwdt *gwdt)
···
 	if (gwdt->version == 0)
 		writel((u32)val, gwdt->control_base + SBSA_GWDT_WOR);
 	else
-		writeq(val, gwdt->control_base + SBSA_GWDT_WOR);
+		lo_hi_writeq(val, gwdt->control_base + SBSA_GWDT_WOR);
 }
 
 /*
···
 MODULE_AUTHOR("Al Stone <[e-mail]>");
 MODULE_AUTHOR("Timur Tabi <[e-mail]>");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" DRV_NAME);

fs/autofs/waitq.c

···
 		qstr.len = strlen(p);
 		offset = p - name;
 	}
-	qstr.hash = full_name_hash(dentry, name, qstr.len);
+	qstr.hash = full_name_hash(dentry, qstr.name, qstr.len);
 
 	if (mutex_lock_interruptible(&sbi->wq_mutex)) {
 		kfree(name);

fs/fuse/fuse_i.h

···
  */
 void fuse_conn_destroy(struct fuse_mount *fm);
 
+/* Drop the connection and free the fuse mount */
+void fuse_mount_destroy(struct fuse_mount *fm);
+
 /**
  * Add connection to control filesystem
  */

fs/fuse/inode.c

···
 	}
 }
 
-static void fuse_put_super(struct super_block *sb)
-{
-	struct fuse_mount *fm = get_fuse_mount_super(sb);
-
-	fuse_conn_put(fm->fc);
-	kfree(fm);
-}
-
 static void convert_fuse_statfs(struct kstatfs *stbuf, struct fuse_kstatfs *attr)
 {
 	stbuf->f_type    = FUSE_SUPER_MAGIC;
···
 	.evict_inode	= fuse_evict_inode,
 	.write_inode	= fuse_write_inode,
 	.drop_inode	= generic_delete_inode,
-	.put_super	= fuse_put_super,
 	.umount_begin	= fuse_umount_begin,
 	.statfs		= fuse_statfs,
 	.sync_fs	= fuse_sync_fs,
···
 	if (!fm)
 		return -ENOMEM;
 
+	fm->fc = fuse_conn_get(fc);
 	fsc->s_fs_info = fm;
 	sb = sget_fc(fsc, NULL, set_anon_super_fc);
-	if (IS_ERR(sb)) {
-		kfree(fm);
+	if (fsc->s_fs_info)
+		fuse_mount_destroy(fm);
+	if (IS_ERR(sb))
 		return PTR_ERR(sb);
-	}
-	fm->fc = fuse_conn_get(fc);
 
 	/* Initialize superblock, making @mp_fi its root */
 	err = fuse_fill_super_submount(sb, mp_fi);
 	if (err) {
-		fuse_conn_put(fc);
-		kfree(fm);
-		sb->s_fs_info = NULL;
 		deactivate_locked_super(sb);
 		return err;
 	}
···
 {
 	struct fuse_fs_context *ctx = fsc->fs_private;
 	int err;
-	struct fuse_conn *fc;
-	struct fuse_mount *fm;
 
 	if (!ctx->file || !ctx->rootmode_present ||
 	    !ctx->user_id_present || !ctx->group_id_present)
···
 	 * Require mount to happen from the same user namespace which
 	 * opened /dev/fuse to prevent potential attacks.
 	 */
-	err = -EINVAL;
 	if ((ctx->file->f_op != &fuse_dev_operations) ||
 	    (ctx->file->f_cred->user_ns != sb->s_user_ns))
-		goto err;
+		return -EINVAL;
 	ctx->fudptr = &ctx->file->private_data;
-
-	fc = kmalloc(sizeof(*fc), GFP_KERNEL);
-	err = -ENOMEM;
-	if (!fc)
-		goto err;
-
-	fm = kzalloc(sizeof(*fm), GFP_KERNEL);
-	if (!fm) {
-		kfree(fc);
-		goto err;
-	}
-
-	fuse_conn_init(fc, fm, sb->s_user_ns, &fuse_dev_fiq_ops, NULL);
-	fc->release = fuse_free_conn;
-
-	sb->s_fs_info = fm;
 
 	err = fuse_fill_super_common(sb, ctx);
 	if (err)
-		goto err_put_conn;
+		return err;
 	/* file->private_data shall be visible on all CPUs after this */
 	smp_mb();
 	fuse_send_init(get_fuse_mount_super(sb));
 	return 0;
-
- err_put_conn:
-	fuse_conn_put(fc);
-	kfree(fm);
-	sb->s_fs_info = NULL;
- err:
-	return err;
 }
 
 /*
···
 {
 	struct fuse_fs_context *ctx = fsc->fs_private;
 	struct fuse_dev *fud;
+	struct fuse_conn *fc;
+	struct fuse_mount *fm;
 	struct super_block *sb;
 	int err;
+
+	fc = kmalloc(sizeof(*fc), GFP_KERNEL);
+	if (!fc)
+		return -ENOMEM;
+
+	fm = kzalloc(sizeof(*fm), GFP_KERNEL);
+	if (!fm) {
+		kfree(fc);
+		return -ENOMEM;
+	}
+
+	fuse_conn_init(fc, fm, fsc->user_ns, &fuse_dev_fiq_ops, NULL);
+	fc->release = fuse_free_conn;
+
+	fsc->s_fs_info = fm;
 
 	if (ctx->fd_present)
 		ctx->file = fget(ctx->fd);
 
 	if (IS_ENABLED(CONFIG_BLOCK) && ctx->is_bdev) {
 		err = get_tree_bdev(fsc, fuse_fill_super);
-		goto out_fput;
+		goto out;
 	}
 	/*
 	 * While block dev mount can be initialized with a dummy device fd
 	 * (found by device name), normal fuse mounts can't
 	 */
+	err = -EINVAL;
 	if (!ctx->file)
-		return -EINVAL;
+		goto out;
 
 	/*
 	 * Allow creating a fuse mount with an already initialized fuse
···
 	} else {
 		err = get_tree_nodev(fsc, fuse_fill_super);
 	}
-out_fput:
+out:
+	if (fsc->s_fs_info)
+		fuse_mount_destroy(fm);
 	if (ctx->file)
 		fput(ctx->file);
 	return err;
···
 	struct fuse_mount *fm = get_fuse_mount_super(sb);
 	bool last;
 
-	if (fm) {
+	if (sb->s_root) {
 		last = fuse_mount_remove(fm);
 		if (last)
 			fuse_conn_destroy(fm);
 	}
 }
 
+void fuse_mount_destroy(struct fuse_mount *fm)
+{
+	fuse_conn_put(fm->fc);
+	kfree(fm);
+}
+EXPORT_SYMBOL(fuse_mount_destroy);
+
 static void fuse_kill_sb_anon(struct super_block *sb)
 {
 	fuse_sb_destroy(sb);
 	kill_anon_super(sb);
+	fuse_mount_destroy(get_fuse_mount_super(sb));
 }
 
 static struct file_system_type fuse_fs_type = {
···
 {
 	fuse_sb_destroy(sb);
 	kill_block_super(sb);
+	fuse_mount_destroy(get_fuse_mount_super(sb));
 }
 
 static struct file_system_type fuseblk_fs_type = {

fs/fuse/virtio_fs.c

···
 	bool last;
 
 	/* If mount failed, we can still be called without any fc */
-	if (fm) {
+	if (sb->s_root) {
 		last = fuse_mount_remove(fm);
 		if (last)
 			virtio_fs_conn_destroy(fm);
 	}
 	kill_anon_super(sb);
+	fuse_mount_destroy(fm);
 }
 
 static int virtio_fs_test_super(struct super_block *sb,
···
 
 	fsc->s_fs_info = fm;
 	sb = sget_fc(fsc, virtio_fs_test_super, set_anon_super_fc);
-	if (fsc->s_fs_info) {
-		fuse_conn_put(fc);
-		kfree(fm);
-	}
+	if (fsc->s_fs_info)
+		fuse_mount_destroy(fm);
 	if (IS_ERR(sb))
 		return PTR_ERR(sb);
 
 	if (!sb->s_root) {
 		err = virtio_fs_fill_super(sb, fsc);
 		if (err) {
-			fuse_conn_put(fc);
-			kfree(fm);
-			sb->s_fs_info = NULL;
 			deactivate_locked_super(sb);
 			return err;
 		}

fs/io-wq.c

···
 		pr_warn_once("io-wq is not configured for unbound workers");
 
 	raw_spin_lock(&wqe->lock);
-	if (acct->nr_workers == acct->max_workers) {
+	if (acct->nr_workers >= acct->max_workers) {
 		raw_spin_unlock(&wqe->lock);
 		return true;
 	}
···
 
 	rcu_read_lock();
 	for_each_node(node) {
+		struct io_wqe *wqe = wq->wqes[node];
 		struct io_wqe_acct *acct;
 
+		raw_spin_lock(&wqe->lock);
 		for (i = 0; i < IO_WQ_ACCT_NR; i++) {
-			acct = &wq->wqes[node]->acct[i];
+			acct = &wqe->acct[i];
 			prev = max_t(int, acct->max_workers, prev);
 			if (new_count[i])
 				acct->max_workers = new_count[i];
 			new_count[i] = prev;
 		}
+		raw_spin_unlock(&wqe->lock);
 	}
 	rcu_read_unlock();
 	return 0;

fs/io_uring.c

···
 		struct work_struct		exit_work;
 		struct list_head		tctx_list;
 		struct completion		ref_comp;
+		u32				iowq_limits[2];
+		bool				iowq_limits_set;
 	};
 };
 
···
 		req->flags |= REQ_F_INFLIGHT;
 		atomic_inc(&current->io_uring->inflight_tracked);
 	}
-}
-
-static inline void io_unprep_linked_timeout(struct io_kiocb *req)
-{
-	req->flags &= ~REQ_F_LINK_TIMEOUT;
 }
 
 static struct io_kiocb *__io_prep_linked_timeout(struct io_kiocb *req)
···
 		switch (io_arm_poll_handler(req)) {
 		case IO_APOLL_READY:
 			if (linked_timeout)
-				io_unprep_linked_timeout(req);
+				io_queue_linked_timeout(linked_timeout);
 			goto issue_sqe;
 		case IO_APOLL_ABORTED:
 			/*
···
 		ret = io_uring_alloc_task_context(current, ctx);
 		if (unlikely(ret))
 			return ret;
+
 		tctx = current->io_uring;
+		if (ctx->iowq_limits_set) {
+			unsigned int limits[2] = { ctx->iowq_limits[0],
+						   ctx->iowq_limits[1], };
+
+			ret = io_wq_max_workers(tctx->io_wq, limits);
+			if (ret)
+				return ret;
+		}
 	}
 	if (!xa_load(&tctx->xa, (unsigned long)ctx)) {
 		node = kmalloc(sizeof(*node), GFP_KERNEL);
···
 
 static int io_register_iowq_max_workers(struct io_ring_ctx *ctx,
 					void __user *arg)
+	__must_hold(&ctx->uring_lock)
 {
+	struct io_tctx_node *node;
 	struct io_uring_task *tctx = NULL;
 	struct io_sq_data *sqd = NULL;
 	__u32 new_count[2];
···
 		tctx = current->io_uring;
 	}
 
-	ret = -EINVAL;
-	if (!tctx || !tctx->io_wq)
-		goto err;
+	BUILD_BUG_ON(sizeof(new_count) != sizeof(ctx->iowq_limits));
 
-	ret = io_wq_max_workers(tctx->io_wq, new_count);
-	if (ret)
-		goto err;
+	memcpy(ctx->iowq_limits, new_count, sizeof(new_count));
+	ctx->iowq_limits_set = true;
+
+	ret = -EINVAL;
+	if (tctx && tctx->io_wq) {
+		ret = io_wq_max_workers(tctx->io_wq, new_count);
+		if (ret)
+			goto err;
+	} else {
+		memset(new_count, 0, sizeof(new_count));
+	}
 
 	if (sqd) {
 		mutex_unlock(&sqd->lock);
···
 	if (copy_to_user(arg, new_count, sizeof(new_count)))
 		return -EFAULT;
 
+	/* that's it for SQPOLL, only the SQPOLL task creates requests */
+	if (sqd)
+		return 0;
+
+	/* now propagate the restriction to all registered users */
+	list_for_each_entry(node, &ctx->tctx_list, ctx_node) {
+		struct io_uring_task *tctx = node->task->io_uring;
+
+		if (WARN_ON_ONCE(!tctx->io_wq))
+			continue;
+
+		for (i = 0; i < ARRAY_SIZE(new_count); i++)
+			new_count[i] = ctx->iowq_limits[i];
+		/* ignore errors, it always returns zero anyway */
+		(void)io_wq_max_workers(tctx->io_wq, new_count);
+	}
 	return 0;
 err:
 	if (sqd) {

fs/ksmbd/auth.c

···
 				   int blob_len, struct ksmbd_session *sess)
 {
 	char *domain_name;
-	unsigned int lm_off, nt_off;
-	unsigned short nt_len;
+	unsigned int nt_off, dn_off;
+	unsigned short nt_len, dn_len;
 	int ret;
 
 	if (blob_len < sizeof(struct authenticate_message)) {
···
 		return -EINVAL;
 	}
 
-	lm_off = le32_to_cpu(authblob->LmChallengeResponse.BufferOffset);
 	nt_off = le32_to_cpu(authblob->NtChallengeResponse.BufferOffset);
 	nt_len = le16_to_cpu(authblob->NtChallengeResponse.Length);
+	dn_off = le32_to_cpu(authblob->DomainName.BufferOffset);
+	dn_len = le16_to_cpu(authblob->DomainName.Length);
+
+	if (blob_len < (u64)dn_off + dn_len || blob_len < (u64)nt_off + nt_len)
+		return -EINVAL;
 
 	/* TODO : use domain name that imported from configuration file */
-	domain_name = smb_strndup_from_utf16((const char *)authblob +
-			le32_to_cpu(authblob->DomainName.BufferOffset),
-			le16_to_cpu(authblob->DomainName.Length), true,
-			sess->conn->local_nls);
+	domain_name = smb_strndup_from_utf16((const char *)authblob + dn_off,
+					     dn_len, true, sess->conn->local_nls);
 	if (IS_ERR(domain_name))
 		return PTR_ERR(domain_name);
 

fs/ksmbd/connection.c

···
 		conn->local_nls = load_nls_default();
 	atomic_set(&conn->req_running, 0);
 	atomic_set(&conn->r_count, 0);
+	conn->total_credits = 1;
+
 	init_waitqueue_head(&conn->req_running_q);
 	INIT_LIST_HEAD(&conn->conns_list);
 	INIT_LIST_HEAD(&conn->sessions);

fs/ksmbd/ksmbd_netlink.h

···
  */
 struct ksmbd_logout_request {
 	__s8	account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */
+	__u32	account_flags;
 };
 
 /*
···
 #define KSMBD_USER_FLAG_BAD_UID		BIT(2)
 #define KSMBD_USER_FLAG_BAD_USER	BIT(3)
 #define KSMBD_USER_FLAG_GUEST_ACCOUNT	BIT(4)
+#define KSMBD_USER_FLAG_DELAY_SESSION	BIT(5)
 
 /*
  * Share config flags.

fs/ksmbd/mgmt/user_config.c

···
 
 void ksmbd_free_user(struct ksmbd_user *user)
 {
-	ksmbd_ipc_logout_request(user->name);
+	ksmbd_ipc_logout_request(user->name, user->flags);
 	kfree(user->name);
 	kfree(user->passkey);
 	kfree(user);

fs/ksmbd/mgmt/user_config.h

···
 
 	size_t			passkey_sz;
 	char			*passkey;
+	unsigned int		failed_login_count;
 };
 
 static inline bool user_guest(struct ksmbd_user *user)

fs/ksmbd/smb2misc.c

···
 		le32_to_cpu(h->MaxOutputResponse);
 }
 
-static int smb2_validate_credit_charge(struct smb2_hdr *hdr)
+static int smb2_validate_credit_charge(struct ksmbd_conn *conn,
+				       struct smb2_hdr *hdr)
 {
-	int req_len = 0, expect_resp_len = 0, calc_credit_num, max_len;
-	int credit_charge = le16_to_cpu(hdr->CreditCharge);
+	unsigned int req_len = 0, expect_resp_len = 0, calc_credit_num, max_len;
+	unsigned short credit_charge = le16_to_cpu(hdr->CreditCharge);
 	void *__hdr = hdr;
+	int ret;
 
 	switch (hdr->Command) {
 	case SMB2_QUERY_INFO:
···
 		req_len = smb2_ioctl_req_len(__hdr);
 		expect_resp_len = smb2_ioctl_resp_len(__hdr);
 		break;
-	default:
+	case SMB2_CANCEL:
 		return 0;
+	default:
+		req_len = 1;
+		break;
 	}
 
-	credit_charge = max(1, credit_charge);
-	max_len = max(req_len, expect_resp_len);
+	credit_charge = max_t(unsigned short, credit_charge, 1);
+	max_len = max_t(unsigned int, req_len, expect_resp_len);
 	calc_credit_num = DIV_ROUND_UP(max_len, SMB2_MAX_BUFFER_SIZE);
 
 	if (credit_charge < calc_credit_num) {
-		pr_err("Insufficient credit charge, given: %d, needed: %d\n",
-		       credit_charge, calc_credit_num);
+		ksmbd_debug(SMB, "Insufficient credit charge, given: %d, needed: %d\n",
+			    credit_charge, calc_credit_num);
+		return 1;
+	} else if (credit_charge > conn->max_credits) {
+		ksmbd_debug(SMB, "Too large credit charge: %d\n", credit_charge);
 		return 1;
 	}
 
-	return 0;
+	spin_lock(&conn->credits_lock);
+	if (credit_charge <= conn->total_credits) {
+		conn->total_credits -= credit_charge;
+		ret = 0;
+	} else {
+		ksmbd_debug(SMB, "Insufficient credits granted, given: %u, granted: %u\n",
+			    credit_charge, conn->total_credits);
+		ret = 1;
+	}
+	spin_unlock(&conn->credits_lock);
+	return ret;
 }
 
 int ksmbd_smb2_check_message(struct ksmbd_work *work)
···
 		}
 	}
 
-	if ((work->conn->vals->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU) &&
-	    smb2_validate_credit_charge(hdr)) {
-		work->conn->ops->set_rsp_status(work, STATUS_INVALID_PARAMETER);
-		return 1;
-	}
-
 	if (smb2_calc_size(hdr, &clc_len))
 		return 1;
 
 	if (len != clc_len) {
 		/* client can return one byte more due to implied bcc[0] */
 		if (clc_len == len + 1)
-			return 0;
+			goto validate_credit;
 
 		/*
 		 * Some windows servers (win2016) will pad also the final
 		 * PDU in a compound to 8 bytes.
 		 */
 		if (ALIGN(clc_len, 8) == len)
-			return 0;
+			goto validate_credit;
 
 		/*
 		 * windows client also pad up to 8 bytes when compounding.
···
 				    "cli req padded more than expected. Length %d not %d for cmd:%d mid:%llu\n",
 				    len, clc_len, command,
 				    le64_to_cpu(hdr->MessageId));
-			return 0;
+			goto validate_credit;
 		}
 
 		ksmbd_debug(SMB,
···
 			    len, clc_len, command,
 			    le64_to_cpu(hdr->MessageId));
 
+		return 1;
+	}
+
+validate_credit:
+	if ((work->conn->vals->capabilities & SMB2_GLOBAL_CAP_LARGE_MTU) &&
+	    smb2_validate_credit_charge(work->conn, hdr)) {
+		work->conn->ops->set_rsp_status(work, STATUS_INVALID_PARAMETER);
 		return 1;
 	}
 

fs/ksmbd/smb2ops.c

···
 
 void init_smb2_max_read_size(unsigned int sz)
 {
+	sz = clamp_val(sz, SMB3_MIN_IOSIZE, SMB3_MAX_IOSIZE);
 	smb21_server_values.max_read_size = sz;
 	smb30_server_values.max_read_size = sz;
 	smb302_server_values.max_read_size = sz;
···
 
 void init_smb2_max_write_size(unsigned int sz)
 {
+	sz = clamp_val(sz, SMB3_MIN_IOSIZE, SMB3_MAX_IOSIZE);
 	smb21_server_values.max_write_size = sz;
 	smb30_server_values.max_write_size = sz;
 	smb302_server_values.max_write_size = sz;
···
 
 void init_smb2_max_trans_size(unsigned int sz)
 {
+	sz = clamp_val(sz, SMB3_MIN_IOSIZE, SMB3_MAX_IOSIZE);
 	smb21_server_values.max_trans_size = sz;
 	smb30_server_values.max_trans_size = sz;
 	smb302_server_values.max_trans_size = sz;

fs/ksmbd/smb2pdu.c

···
 	return 0;
 }
 
-static int smb2_consume_credit_charge(struct ksmbd_work *work,
-				      unsigned short credit_charge)
-{
-	struct ksmbd_conn *conn = work->conn;
-	unsigned int rsp_credits = 1;
-
-	if (!conn->total_credits)
-		return 0;
-
-	if (credit_charge > 0)
-		rsp_credits = credit_charge;
-
-	conn->total_credits -= rsp_credits;
-	return rsp_credits;
-}
-
 /**
  * smb2_set_rsp_credits() - set number of credits in response buffer
  * @work:	smb work containing smb response buffer
···
 	struct smb2_hdr *req_hdr = ksmbd_req_buf_next(work);
 	struct smb2_hdr *hdr = ksmbd_resp_buf_next(work);
 	struct ksmbd_conn *conn = work->conn;
-	unsigned short credits_requested = le16_to_cpu(req_hdr->CreditRequest);
-	unsigned short credit_charge = 1, credits_granted = 0;
-	unsigned short aux_max, aux_credits, min_credits;
-	int rsp_credit_charge;
+	unsigned short credits_requested;
+	unsigned short credit_charge, credits_granted = 0;
+	unsigned short aux_max, aux_credits;
 
-	if (hdr->Command == SMB2_CANCEL)
-		goto out;
+	if (work->send_no_response)
+		return 0;
 
-	/* get default minimum credits by shifting maximum credits by 4 */
-	min_credits = conn->max_credits >> 4;
+	hdr->CreditCharge = req_hdr->CreditCharge;
 
-	if (conn->total_credits >= conn->max_credits) {
+	if (conn->total_credits > conn->max_credits) {
+		hdr->CreditRequest = 0;
 		pr_err("Total credits overflow: %d\n", conn->total_credits);
-		conn->total_credits = min_credits;
-	}
-
-	rsp_credit_charge =
-		smb2_consume_credit_charge(work, le16_to_cpu(req_hdr->CreditCharge));
-	if (rsp_credit_charge < 0)
 		return -EINVAL;
-
-	hdr->CreditCharge = cpu_to_le16(rsp_credit_charge);
-
-	if (credits_requested > 0) {
-		aux_credits = credits_requested - 1;
-		aux_max = 32;
-		if (hdr->Command == SMB2_NEGOTIATE)
-			aux_max = 0;
-		aux_credits = (aux_credits < aux_max) ? aux_credits : aux_max;
-		credits_granted = aux_credits + credit_charge;
-
-		/* if credits granted per client is getting bigger than default
-		 * minimum credits then we should wrap it up within the limits.
-		 */
-		if ((conn->total_credits + credits_granted) > min_credits)
-			credits_granted = min_credits -	conn->total_credits;
-		/*
-		 * TODO: Need to adjuct CreditRequest value according to
-		 * current cpu load
-		 */
-	} else if (conn->total_credits == 0) {
-		credits_granted = 1;
 	}
+
+	credit_charge = max_t(unsigned short,
+			      le16_to_cpu(req_hdr->CreditCharge), 1);
+	credits_requested = max_t(unsigned short,
+				  le16_to_cpu(req_hdr->CreditRequest), 1);
+
+	/* according to smb2.credits smbtorture, Windows server
+	 * 2016 or later grant up to 8192 credits at once.
+	 *
+	 * TODO: Need to adjuct CreditRequest value according to
+	 * current cpu load
+	 */
+	aux_credits = credits_requested - 1;
+	if (hdr->Command == SMB2_NEGOTIATE)
+		aux_max = 0;
+	else
+		aux_max = conn->max_credits - credit_charge;
+	aux_credits = min_t(unsigned short, aux_credits, aux_max);
+	credits_granted = credit_charge + aux_credits;
+
+	if (conn->max_credits - conn->total_credits < credits_granted)
+		credits_granted = conn->max_credits -
+			conn->total_credits;
 
 	conn->total_credits += credits_granted;
 	work->credits_granted += credits_granted;
···
 		/* Update CreditRequest in last request */
 		hdr->CreditRequest = cpu_to_le16(work->credits_granted);
 	}
-out:
 	ksmbd_debug(SMB,
 		    "credits: requested[%d] granted[%d] total_granted[%d]\n",
 		    credits_requested, credits_granted,
···
 			return false;
 		}
 
+		if ((u64)get_rfc1002_len(work->response_buf) + MAX_CIFS_SMALL_BUFFER_SIZE >
+		    work->response_sz) {
+			pr_err("next response offset exceeds response buffer size\n");
+			return false;
+		}
+
 		ksmbd_debug(SMB, "got SMB2 chained command\n");
 		init_chained_smb2_rsp(work);
 		return true;
···
 {
 	struct smb2_hdr *hdr = work->request_buf;
 	size_t small_sz = MAX_CIFS_SMALL_BUFFER_SIZE;
-	size_t large_sz = work->conn->vals->max_trans_size + MAX_SMB2_HDR_SIZE;
+	size_t large_sz = small_sz + work->conn->vals->max_trans_size;
 	size_t sz = small_sz;
 	int cmd = le16_to_cpu(hdr->Command);
 
···
 	return 0;
 }
 
-static int decode_negotiation_token(struct ksmbd_work *work,
-				    struct negotiate_message *negblob)
+static int decode_negotiation_token(struct ksmbd_conn *conn,
+				    struct negotiate_message *negblob,
+				    size_t sz)
 {
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_sess_setup_req *req;
-	int sz;
-
 	if (!conn->use_spnego)
 		return -EINVAL;
-
-	req = work->request_buf;
-	sz = le16_to_cpu(req->SecurityBufferLength);
 
 	if (ksmbd_decode_negTokenInit((char *)negblob, sz, conn)) {
 		if (ksmbd_decode_negTokenTarg((char *)negblob, sz, conn)) {
···
 }
 
 static int ntlm_negotiate(struct ksmbd_work *work,
-			  struct negotiate_message *negblob)
+			  struct negotiate_message *negblob,
+			  size_t negblob_len)
 {
-	struct smb2_sess_setup_req *req = work->request_buf;
 	struct smb2_sess_setup_rsp *rsp = work->response_buf;
 	struct challenge_message *chgblob;
 	unsigned char *spnego_blob = NULL;
···
 	int sz, rc;
 
 	ksmbd_debug(SMB, "negotiate phase\n");
-	sz = le16_to_cpu(req->SecurityBufferLength);
-	rc = ksmbd_decode_ntlmssp_neg_blob(negblob, sz, work->sess);
+	rc = ksmbd_decode_ntlmssp_neg_blob(negblob, negblob_len, work->sess);
 	if (rc)
 		return rc;
 
···
 	struct authenticate_message *authblob;
 	struct ksmbd_user *user;
 	char *name;
-	int sz;
+	unsigned int auth_msg_len, name_off, name_len, secbuf_len;
 
+	secbuf_len = le16_to_cpu(req->SecurityBufferLength);
+	if (secbuf_len < sizeof(struct authenticate_message)) {
+		ksmbd_debug(SMB, "blob len %d too small\n", secbuf_len);
+		return NULL;
+	}
 	authblob = user_authblob(conn, req);
-	sz = le32_to_cpu(authblob->UserName.BufferOffset);
-	name = smb_strndup_from_utf16((const char *)authblob + sz,
-				      le16_to_cpu(authblob->UserName.Length),
+	name_off = le32_to_cpu(authblob->UserName.BufferOffset);
+	name_len = le16_to_cpu(authblob->UserName.Length);
+	auth_msg_len = le16_to_cpu(req->SecurityBufferOffset) + secbuf_len;
+
+	if (auth_msg_len < (u64)name_off + name_len)
+		return NULL;
+
+	name = smb_strndup_from_utf16((const char *)authblob + name_off,
+				      name_len,
 				      true,
 				      conn->local_nls);
 	if (IS_ERR(name)) {
···
 	struct smb2_sess_setup_rsp *rsp = work->response_buf;
 	struct ksmbd_session *sess;
 	struct negotiate_message *negblob;
+	unsigned int negblob_len, negblob_off;
 	int rc = 0;
 
 	ksmbd_debug(SMB, "Received request for session setup\n");
···
 	if (sess->state == SMB2_SESSION_EXPIRED)
 		sess->state = SMB2_SESSION_IN_PROGRESS;
 
-	negblob = (struct negotiate_message *)((char *)&req->hdr.ProtocolId +
-			le16_to_cpu(req->SecurityBufferOffset));
+	negblob_off = le16_to_cpu(req->SecurityBufferOffset);
+	negblob_len = le16_to_cpu(req->SecurityBufferLength);
+	if (negblob_off < (offsetof(struct smb2_sess_setup_req, Buffer) - 4) ||
+	    negblob_len < offsetof(struct negotiate_message, NegotiateFlags))
+		return -EINVAL;
 
-	if (decode_negotiation_token(work, negblob) == 0) {
+	negblob = (struct negotiate_message *)((char *)&req->hdr.ProtocolId +
+			negblob_off);
+
+	if (decode_negotiation_token(conn, negblob, negblob_len) == 0) {
 		if (conn->mechToken)
 			negblob = (struct negotiate_message *)conn->mechToken;
 	}
···
 			sess->Preauth_HashValue = NULL;
 		} else if (conn->preferred_auth_mech == KSMBD_AUTH_NTLMSSP) {
 			if (negblob->MessageType == NtLmNegotiate) {
-				rc = ntlm_negotiate(work, negblob);
+				rc = ntlm_negotiate(work, negblob, negblob_len);
 				if (rc)
 					goto out_err;
 				rsp->hdr.Status =
···
 		conn->mechToken = NULL;
 	}
 
-	if (rc < 0 && sess) {
-		ksmbd_session_destroy(sess);
-		work->sess = NULL;
+	if (rc < 0) {
+		/*
+		 * SecurityBufferOffset should be set to zero
+		 * in session setup error response.
+		 */
+		rsp->SecurityBufferOffset = 0;
+
+		if (sess) {
+			bool try_delay = false;
+
+			/*
+			 * To avoid dictionary attacks (repeated session setups rapidly sent) to
+			 * connect to server, ksmbd make a delay of a 5 seconds on session setup
+			 * failure to make it harder to send enough random connection requests
+			 * to break into a server.
+			 */
+			if (sess->user && sess->user->flags & KSMBD_USER_FLAG_DELAY_SESSION)
+				try_delay = true;
+
+			ksmbd_session_destroy(sess);
+			work->sess = NULL;
+			if (try_delay)
+				ssleep(5);
+		}
 	}
 
 	return rc;
···
 	return 0;
 }
 
+static int smb2_calc_max_out_buf_len(struct ksmbd_work *work,
+				     unsigned short hdr2_len,
+				     unsigned int out_buf_len)
+{
+	int free_len;
+
+	if (out_buf_len > work->conn->vals->max_trans_size)
+		return -EINVAL;
+
+	free_len = (int)(work->response_sz -
+			 (get_rfc1002_len(work->response_buf) + 4)) -
+		hdr2_len;
+	if (free_len < 0)
+		return -EINVAL;
+
+	return min_t(int, out_buf_len, free_len);
+}
+
 int smb2_query_dir(struct ksmbd_work *work)
 {
 	struct ksmbd_conn *conn = work->conn;
···
 	memset(&d_info, 0, sizeof(struct ksmbd_dir_info));
 	d_info.wptr = (char *)rsp->Buffer;
 	d_info.rptr = (char *)rsp->Buffer;
-	d_info.out_buf_len = (work->response_sz - (get_rfc1002_len(rsp_org) + 4));
-	d_info.out_buf_len = min_t(int, d_info.out_buf_len, le32_to_cpu(req->OutputBufferLength)) -
-		sizeof(struct smb2_query_directory_rsp);
+	d_info.out_buf_len =
+		smb2_calc_max_out_buf_len(work, 8,
+					  le32_to_cpu(req->OutputBufferLength));
+	if (d_info.out_buf_len < 0) {
+		rc = -EINVAL;
+		goto err_out;
+	}
 	d_info.flags = srch_flag;
 
 	/*
···
 				    le32_to_cpu(req->Flags));
 	}
 
-	buf_free_len = work->response_sz -
-			(get_rfc1002_len(rsp_org) + 4) -
-			sizeof(struct smb2_query_info_rsp);
-
-	if (le32_to_cpu(req->OutputBufferLength) < buf_free_len)
-		buf_free_len = le32_to_cpu(req->OutputBufferLength);
+	buf_free_len =
+		smb2_calc_max_out_buf_len(work, 8,
+					  le32_to_cpu(req->OutputBufferLength));
+	if (buf_free_len < 0)
+		return -EINVAL;
 
 	rc = ksmbd_vfs_listxattr(path->dentry, &xattr_list);
 	if (rc < 0) {
···
 	struct path *path = &fp->filp->f_path;
 	ssize_t xattr_list_len;
 	int nbytes = 0, streamlen, stream_name_len, next, idx = 0;
+	int buf_free_len;
+	struct smb2_query_info_req *req = ksmbd_req_buf_next(work);
 
 	generic_fillattr(file_mnt_user_ns(fp->filp), file_inode(fp->filp),
 			 &stat);
···
 		ksmbd_debug(SMB, "empty xattr in the file\n");
 		goto out;
 	}
+
+	buf_free_len =
+		smb2_calc_max_out_buf_len(work, 8,
+					  le32_to_cpu(req->OutputBufferLength));
+	if (buf_free_len < 0)
+		goto out;
 
 	while (idx < xattr_list_len) {
 		stream_name = xattr_list + idx;
···
 		streamlen = snprintf(stream_buf, streamlen + 1,
 				     ":%s", &stream_name[XATTR_NAME_STREAM_LEN]);
 
+		next = sizeof(struct smb2_file_stream_info) + streamlen * 2;
+		if (next > buf_free_len)
+			break;
+
 		file_info = (struct smb2_file_stream_info *)&rsp->Buffer[nbytes];
 		streamlen  = smbConvertToUTF16((__le16 *)file_info->StreamName,
 					       stream_buf, streamlen,
···
 		file_info->StreamSize = cpu_to_le64(stream_name_len);
 		file_info->StreamAllocationSize = cpu_to_le64(stream_name_len);
 
-		next = sizeof(struct smb2_file_stream_info) + streamlen;
 		nbytes += next;
+		buf_free_len -= next;
 		file_info->NextEntryOffset = cpu_to_le32(next);
 	}
 
-	if (!S_ISDIR(stat.mode)) {
+	if (!S_ISDIR(stat.mode) &&
+	    buf_free_len >= sizeof(struct smb2_file_stream_info) + 7 * 2) {
 		file_info = (struct smb2_file_stream_info *)
 			&rsp->Buffer[nbytes];
 		streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName,
···
 	    (offsetof(struct smb2_write_req, Buffer) - 4)) {
 		data_buf = (char *)&req->Buffer[0];
 	} else {
-		if ((le16_to_cpu(req->DataOffset) > get_rfc1002_len(req)) ||
-		    (le16_to_cpu(req->DataOffset) + length > get_rfc1002_len(req))) {
+		if ((u64)le16_to_cpu(req->DataOffset) + length > get_rfc1002_len(req)) {
 			pr_err("invalid write data offset %u, smb_len %u\n",
 			       le16_to_cpu(req->DataOffset),
 			       get_rfc1002_len(req));
···
 		    (offsetof(struct smb2_write_req, Buffer) - 4)) {
 			data_buf = (char *)&req->Buffer[0];
 		} else {
-			if ((le16_to_cpu(req->DataOffset) > get_rfc1002_len(req)) ||
-			    (le16_to_cpu(req->DataOffset) + length > get_rfc1002_len(req))) {
+			if ((u64)le16_to_cpu(req->DataOffset) + length > get_rfc1002_len(req)) {
 				pr_err("invalid write data offset %u, smb_len %u\n",
 				       le16_to_cpu(req->DataOffset),
 				       get_rfc1002_len(req));
···
 	return err;
 }
 
-static int fsctl_copychunk(struct ksmbd_work *work, struct smb2_ioctl_req *req,
+static int fsctl_copychunk(struct ksmbd_work *work,
+			   struct copychunk_ioctl_req *ci_req,
+			   unsigned int cnt_code,
+			   unsigned int input_count,
+			   unsigned long long volatile_id,
+			   unsigned long long persistent_id,
 			   struct smb2_ioctl_rsp *rsp)
 {
-	struct copychunk_ioctl_req *ci_req;
 	struct copychunk_ioctl_rsp *ci_rsp;
 	struct ksmbd_file *src_fp = NULL, *dst_fp = NULL;
 	struct srv_copychunk *chunks;
 	unsigned int i, chunk_count, chunk_count_written = 0;
 	unsigned int chunk_size_written = 0;
 	loff_t total_size_written = 0;
-	int ret, cnt_code;
+	int ret = 0;
 
-	cnt_code = le32_to_cpu(req->CntCode);
-	ci_req = (struct copychunk_ioctl_req *)&req->Buffer[0];
 	ci_rsp = (struct copychunk_ioctl_rsp *)&rsp->Buffer[0];
 
-	rsp->VolatileFileId = req->VolatileFileId;
-	rsp->PersistentFileId = req->PersistentFileId;
+	rsp->VolatileFileId = cpu_to_le64(volatile_id);
+	rsp->PersistentFileId = cpu_to_le64(persistent_id);
 	ci_rsp->ChunksWritten =
 		cpu_to_le32(ksmbd_server_side_copy_max_chunk_count());
 	ci_rsp->ChunkBytesWritten =
···
 
 	chunks = (struct srv_copychunk *)&ci_req->Chunks[0];
 	chunk_count = le32_to_cpu(ci_req->ChunkCount);
+	if (chunk_count == 0)
+		goto out;
 	total_size_written = 0;
 
 	/* verify the SRV_COPYCHUNK_COPY packet */
 	if (chunk_count > ksmbd_server_side_copy_max_chunk_count() ||
-	    le32_to_cpu(req->InputCount) <
-	     offsetof(struct copychunk_ioctl_req, Chunks) +
+	    input_count < offsetof(struct copychunk_ioctl_req, Chunks) +
 	     chunk_count * sizeof(struct srv_copychunk)) {
 		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
 		return -EINVAL;
···
 
 	src_fp = ksmbd_lookup_foreign_fd(work,
 					 le64_to_cpu(ci_req->ResumeKey[0]));
-	dst_fp = ksmbd_lookup_fd_slow(work,
-				      le64_to_cpu(req->VolatileFileId),
-				      le64_to_cpu(req->PersistentFileId));
+	dst_fp = ksmbd_lookup_fd_slow(work, volatile_id, persistent_id);
 	ret = -EINVAL;
 	if (!src_fp ||
 	    src_fp->persistent_id != le64_to_cpu(ci_req->ResumeKey[1])) {
···
 }
 
 static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn,
-					struct smb2_ioctl_req *req,
-					struct smb2_ioctl_rsp *rsp)
+					struct smb2_ioctl_rsp *rsp,
+					unsigned int out_buf_len)
 {
 	struct network_interface_info_ioctl_rsp *nii_rsp = NULL;
 	int nbytes = 0;
···
 
 	rtnl_lock();
 	for_each_netdev(&init_net, netdev) {
+		if (out_buf_len <
+		    nbytes + sizeof(struct network_interface_info_ioctl_rsp)) {
+			rtnl_unlock();
+			return -ENOSPC;
+		}
+
 		if (netdev->type == ARPHRD_LOOPBACK)
 			continue;
 
···
 	if (nii_rsp)
 		nii_rsp->Next = 0;
 
-	if (!nbytes) {
-		rsp->hdr.Status = STATUS_BUFFER_TOO_SMALL;
-		return -EINVAL;
-	}
-
 	rsp->PersistentFileId = cpu_to_le64(SMB2_NO_FID);
 	rsp->VolatileFileId = cpu_to_le64(SMB2_NO_FID);
 	return nbytes;
···
 
 static int fsctl_validate_negotiate_info(struct ksmbd_conn *conn,
 					 struct validate_negotiate_info_req *neg_req,
-					 struct validate_negotiate_info_rsp *neg_rsp)
+					 struct validate_negotiate_info_rsp *neg_rsp,
+					 unsigned int in_buf_len)
 {
 	int ret = 0;
 	int dialect;
+
+	if (in_buf_len < sizeof(struct validate_negotiate_info_req) +
+			le16_to_cpu(neg_req->DialectCount) * sizeof(__le16))
+		return -EINVAL;
 
 	dialect = ksmbd_lookup_dialect_by_id(neg_req->Dialects,
 					     neg_req->DialectCount);
···
 static int fsctl_query_allocated_ranges(struct ksmbd_work *work, u64 id,
 					struct file_allocated_range_buffer *qar_req,
 					struct file_allocated_range_buffer *qar_rsp,
-					int in_count, int *out_count)
+					unsigned int in_count, unsigned int *out_count)
 {
 	struct ksmbd_file *fp;
 	loff_t start, length;
···
 }
 
 static int fsctl_pipe_transceive(struct ksmbd_work *work, u64 id,
-				 int out_buf_len, struct smb2_ioctl_req *req,
+				 unsigned int out_buf_len,
+				 struct smb2_ioctl_req *req,
 				 struct smb2_ioctl_rsp *rsp)
 {
 	struct ksmbd_rpc_command *rpc_resp;
···
 {
 	struct smb2_ioctl_req *req;
 	struct smb2_ioctl_rsp *rsp, *rsp_org;
-	int cnt_code, nbytes = 0;
-	int out_buf_len;
+	unsigned int cnt_code, nbytes = 0, out_buf_len, in_buf_len;
 	u64 id = KSMBD_NO_FID;
 	struct ksmbd_conn *conn = work->conn;
 	int ret = 0;
···
 	}
 
 	cnt_code = le32_to_cpu(req->CntCode);
-	out_buf_len = le32_to_cpu(req->MaxOutputResponse);
-	out_buf_len = min(KSMBD_IPC_MAX_PAYLOAD, out_buf_len);
+	ret = smb2_calc_max_out_buf_len(work, 48,
+					le32_to_cpu(req->MaxOutputResponse));
+	if (ret < 0) {
+		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
+		goto out;
+	}
+	out_buf_len = (unsigned int)ret;
+	in_buf_len = le32_to_cpu(req->InputCount);
 
 	switch (cnt_code) {
 	case FSCTL_DFS_GET_REFERRALS:
···
 		break;
 	}
 	case FSCTL_PIPE_TRANSCEIVE:
+		out_buf_len = min_t(u32, KSMBD_IPC_MAX_PAYLOAD, out_buf_len);
 		nbytes = fsctl_pipe_transceive(work, id, out_buf_len, req, rsp);
 		break;
 	case FSCTL_VALIDATE_NEGOTIATE_INFO:
···
 			goto out;
 		}
 
+		if (in_buf_len < sizeof(struct validate_negotiate_info_req))
+			return -EINVAL;
+
+		if (out_buf_len < sizeof(struct validate_negotiate_info_rsp))
+			return -EINVAL;
+
 		ret = fsctl_validate_negotiate_info(conn,
 			(struct validate_negotiate_info_req *)&req->Buffer[0],
-			(struct validate_negotiate_info_rsp *)&rsp->Buffer[0]);
+			(struct validate_negotiate_info_rsp *)&rsp->Buffer[0],
+			in_buf_len);
 		if (ret < 0)
 			goto out;
 
···
 		rsp->VolatileFileId = cpu_to_le64(SMB2_NO_FID);
 		break;
 	case FSCTL_QUERY_NETWORK_INTERFACE_INFO:
-		nbytes = fsctl_query_iface_info_ioctl(conn, req, rsp);
-		if (nbytes < 0)
+		ret = fsctl_query_iface_info_ioctl(conn, rsp, out_buf_len);
+		if (ret < 0)
 			goto out;
+		nbytes = ret;
 		break;
 	case FSCTL_REQUEST_RESUME_KEY:
 		if (out_buf_len < sizeof(struct resume_key_ioctl_rsp)) {
···
 			goto out;
 		}
 
+		if (in_buf_len < sizeof(struct copychunk_ioctl_req)) {
+			ret = -EINVAL;
+			goto out;
+		}
+
 		if (out_buf_len < sizeof(struct copychunk_ioctl_rsp)) {
 			ret = -EINVAL;
 			goto out;
 		}
 
 		nbytes = sizeof(struct copychunk_ioctl_rsp);
-		fsctl_copychunk(work, req, rsp);
+		rsp->VolatileFileId = req->VolatileFileId;
+		rsp->PersistentFileId = req->PersistentFileId;
+		fsctl_copychunk(work,
+				(struct copychunk_ioctl_req *)&req->Buffer[0],
+				le32_to_cpu(req->CntCode),
+				le32_to_cpu(req->InputCount),
+				le64_to_cpu(req->VolatileFileId),
+				le64_to_cpu(req->PersistentFileId),
+				rsp);
 		break;
 	case FSCTL_SET_SPARSE:
+		if (in_buf_len < sizeof(struct file_sparse)) {
+			ret = -EINVAL;
+			goto out;
+		}
+
 		ret = fsctl_set_sparse(work, id,
 				       (struct file_sparse *)&req->Buffer[0]);
 		if (ret < 0)
···
 			ksmbd_debug(SMB,
 				    "User does not have write permission\n");
 			ret = -EACCES;
+			goto out;
+		}
+
+		if (in_buf_len < sizeof(struct file_zero_data_information)) {
+			ret = -EINVAL;
 			goto out;
 		}
 
···
 		break;
 	}
 	case FSCTL_QUERY_ALLOCATED_RANGES:
+		if (in_buf_len < sizeof(struct file_allocated_range_buffer)) {
+			ret = -EINVAL;
+			goto out;
+		}
+
 		ret = fsctl_query_allocated_ranges(work, id,
 			(struct file_allocated_range_buffer *)&req->Buffer[0],
 			(struct file_allocated_range_buffer *)&rsp->Buffer[0],
···
 		struct ksmbd_file *fp_in, *fp_out = NULL;
 		struct duplicate_extents_to_file *dup_ext;
 		loff_t src_off, dst_off, length, cloned;
+
+		if (in_buf_len < sizeof(struct duplicate_extents_to_file)) {
+			ret = -EINVAL;
+			goto out;
+		}
 
 		dup_ext = (struct duplicate_extents_to_file *)&req->Buffer[0];
 
···
 		rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND;
 	else if (ret == -EOPNOTSUPP)
 		rsp->hdr.Status = STATUS_NOT_SUPPORTED;
+	else if (ret == -ENOSPC)
+		rsp->hdr.Status = STATUS_BUFFER_TOO_SMALL;
 	else if (ret < 0 || rsp->hdr.Status == 0)
 		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
 	smb2_set_err_rsp(work);

fs/ksmbd/smb2pdu.h

···
 #define SMB21_DEFAULT_IOSIZE	(1024 * 1024)
 #define SMB3_DEFAULT_IOSIZE	(4 * 1024 * 1024)
 #define SMB3_DEFAULT_TRANS_SIZE	(1024 * 1024)
+#define SMB3_MIN_IOSIZE	(64 * 1024)
+#define SMB3_MAX_IOSIZE	(8 * 1024 * 1024)
 
 /*
  * SMB2 Header Definition

fs/ksmbd/transport_ipc.c

···
 	return ret;
 }
 
-int ksmbd_ipc_logout_request(const char *account)
+int ksmbd_ipc_logout_request(const char *account, int flags)
 {
 	struct ksmbd_ipc_msg *msg;
 	struct ksmbd_logout_request *req;
···
 
 	msg->type = KSMBD_EVENT_LOGOUT_REQUEST;
 	req = (struct ksmbd_logout_request *)msg->payload;
+	req->account_flags = flags;
 	strscpy(req->account, account, KSMBD_REQ_MAX_ACCOUNT_NAME_SZ);
 
 	ret = ipc_msg_send(msg);

fs/ksmbd/transport_ipc.h

···
 			       struct sockaddr *peer_addr);
 int ksmbd_ipc_tree_disconnect_request(unsigned long long session_id,
 				      unsigned long long connect_id);
-int ksmbd_ipc_logout_request(const char *account);
+int ksmbd_ipc_logout_request(const char *account, int flags);
 struct ksmbd_share_config_response *
 ksmbd_ipc_share_config_request(const char *name);
 struct ksmbd_spnego_authen_response *

fs/ksmbd/transport_rdma.c

···
 
 	switch (recvmsg->type) {
 	case SMB_DIRECT_MSG_NEGOTIATE_REQ:
+		if (wc->byte_len < sizeof(struct smb_direct_negotiate_req)) {
+			put_empty_recvmsg(t, recvmsg);
+			return;
+		}
 		t->negotiation_requested = true;
 		t->full_packet_received = true;
 		wake_up_interruptible(&t->wait_status);
···
 	case SMB_DIRECT_MSG_DATA_TRANSFER: {
 		struct smb_direct_data_transfer *data_transfer =
 			(struct smb_direct_data_transfer *)recvmsg->packet;
-		int data_length = le32_to_cpu(data_transfer->data_length);
+		unsigned int data_length;
 		int avail_recvmsg_count, receive_credits;
 
+		if (wc->byte_len <
+		    offsetof(struct smb_direct_data_transfer, padding)) {
+			put_empty_recvmsg(t, recvmsg);
+			return;
+		}
+
+		data_length = le32_to_cpu(data_transfer->data_length);
 		if (data_length) {
+			if (wc->byte_len < sizeof(struct smb_direct_data_transfer) +
+			    (u64)data_length) {
+				put_empty_recvmsg(t, recvmsg);
+				return;
+			}
+
 			if (t->full_packet_received)
 				recvmsg->first_segment = true;
 
···
 			else
 				t->full_packet_received = true;
 
-			enqueue_reassembly(t, recvmsg, data_length);
+			enqueue_reassembly(t, recvmsg, (int)data_length);
 			wake_up_interruptible(&t->wait_reassembly_queue);
 
 			spin_lock(&t->receive_credit_lock);

fs/ksmbd/vfs.c

···
 
 int ksmbd_vfs_fqar_lseek(struct ksmbd_file *fp, loff_t start, loff_t length,
 			 struct file_allocated_range_buffer *ranges,
-			 int in_count, int *out_count)
+			 unsigned int in_count, unsigned int *out_count)
 {
 	struct file *f = fp->filp;
 	struct inode *inode = file_inode(fp->filp);

fs/ksmbd/vfs.h

···
 struct file_allocated_range_buffer;
 int ksmbd_vfs_fqar_lseek(struct ksmbd_file *fp, loff_t start, loff_t length,
 			 struct file_allocated_range_buffer *ranges,
-			 int in_count, int *out_count);
+			 unsigned int in_count, unsigned int *out_count);
 int ksmbd_vfs_unlink(struct user_namespace *user_ns,
 		     struct dentry *dir, struct dentry *dentry);
 void *ksmbd_vfs_init_kstat(char **p, struct ksmbd_kstat *ksmbd_kstat);

include/acpi/platform/acgcc.h

···
 #define va_arg(v, l)            __builtin_va_arg(v, l)
 #define va_copy(d, s)           __builtin_va_copy(d, s)
 #else
+#ifdef __KERNEL__
 #include <linux/stdarg.h>
-#endif
-#endif
+#else
+/* Used to build acpi tools */
+#include <stdarg.h>
+#endif /* __KERNEL__ */
+#endif /* ACPI_USE_BUILTIN_STDARG */
+#endif /* ! va_arg */
 
 #define ACPI_INLINE             __inline__
 

include/linux/bpf.h

···
 	 * stored in the map to make sure that all callers and callees have
 	 * the same prog type and JITed flag.
 	 */
-	enum bpf_prog_type type;
-	bool jited;
+	struct {
+		spinlock_t lock;
+		enum bpf_prog_type type;
+		bool jited;
+	} owner;
 	/* Programs with direct jumps into programs part of this array. */
 	struct list_head poke_progs;
 	struct bpf_map *map;

include/linux/bpf_types.h

···
 #endif
 BPF_MAP_TYPE(BPF_MAP_TYPE_ARRAY_OF_MAPS, array_of_maps_map_ops)
 BPF_MAP_TYPE(BPF_MAP_TYPE_HASH_OF_MAPS, htab_of_maps_map_ops)
-#ifdef CONFIG_NET
-BPF_MAP_TYPE(BPF_MAP_TYPE_DEVMAP, dev_map_ops)
-BPF_MAP_TYPE(BPF_MAP_TYPE_DEVMAP_HASH, dev_map_hash_ops)
-BPF_MAP_TYPE(BPF_MAP_TYPE_SK_STORAGE, sk_storage_map_ops)
 #ifdef CONFIG_BPF_LSM
 BPF_MAP_TYPE(BPF_MAP_TYPE_INODE_STORAGE, inode_storage_map_ops)
 #endif
 BPF_MAP_TYPE(BPF_MAP_TYPE_TASK_STORAGE, task_storage_map_ops)
+#ifdef CONFIG_NET
+BPF_MAP_TYPE(BPF_MAP_TYPE_DEVMAP, dev_map_ops)
+BPF_MAP_TYPE(BPF_MAP_TYPE_DEVMAP_HASH, dev_map_hash_ops)
+BPF_MAP_TYPE(BPF_MAP_TYPE_SK_STORAGE, sk_storage_map_ops)
 BPF_MAP_TYPE(BPF_MAP_TYPE_CPUMAP, cpu_map_ops)
 #if defined(CONFIG_XDP_SOCKETS)
 BPF_MAP_TYPE(BPF_MAP_TYPE_XSKMAP, xsk_map_ops)

include/linux/filter.h

···
 extern int bpf_jit_harden;
 extern int bpf_jit_kallsyms;
 extern long bpf_jit_limit;
+extern long bpf_jit_limit_max;
 
 typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size);
 

include/linux/skmsg.h

···
 			     struct sk_msg *msg, u32 bytes);
 int sk_msg_recvmsg(struct sock *sk, struct sk_psock *psock, struct msghdr *msg,
 		   int len, int flags);
+bool sk_msg_is_readable(struct sock *sk);
 
 static inline void sk_msg_check_to_free(struct sk_msg *msg, u32 i, u32 bytes)
 {

include/net/cfg80211.h

···
  *	netdev and may otherwise be used by driver read-only, will be update
  *	by cfg80211 on change_interface
  * @mgmt_registrations: list of registrations for management frames
- * @mgmt_registrations_lock: lock for the list
  * @mgmt_registrations_need_update: mgmt registrations were updated,
  *	need to propagate the update to the driver
  * @mtx: mutex used to lock data in this struct, may be used by drivers
···
 	u32 identifier;
 
 	struct list_head mgmt_registrations;
-	spinlock_t mgmt_registrations_lock;
 	u8 mgmt_registrations_need_update:1;
 
 	struct mutex mtx;

include/net/mptcp.h

···
 		struct {
 			u64 sndr_key;
 			u64 rcvr_key;
+			u64 data_seq;
+			u32 subflow_seq;
+			u16 data_len;
+			__sum16 csum;
 		};
 		struct {
 			struct mptcp_addr_info addr;

include/net/sock.h

···
 	int			(*forward_alloc_get)(const struct sock *sk);
 
 	bool			(*stream_memory_free)(const struct sock *sk, int wake);
-	bool			(*stream_memory_read)(const struct sock *sk);
+	bool			(*sock_is_readable)(struct sock *sk);
 	/* Memory pressure */
 	void			(*enter_memory_pressure)(struct sock *sk);
 	void			(*leave_memory_pressure)(struct sock *sk);
···
 int sock_copy_user_timeval(struct __kernel_sock_timeval *tv,
 			   sockptr_t optval, int optlen, bool old_timeval);
 
+static inline bool sk_is_readable(struct sock *sk)
+{
+	if (sk->sk_prot->sock_is_readable)
+		return sk->sk_prot->sock_is_readable(sk);
+	return false;
+}
 #endif	/* _SOCK_H */

include/net/tls.h

···
 		int __user *optlen);
 int tls_sk_attach(struct sock *sk, int optname, char __user *optval,
 		  unsigned int optlen);
+void tls_err_abort(struct sock *sk, int err);
 
 int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx);
 void tls_sw_strparser_arm(struct sock *sk, struct tls_context *ctx);
···
 void tls_sw_free_ctx_rx(struct tls_context *tls_ctx);
 int tls_sw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 		   int nonblock, int flags, int *addr_len);
-bool tls_sw_stream_read(const struct sock *sk);
+bool tls_sw_sock_is_readable(struct sock *sk);
 ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos,
 			   struct pipe_inode_info *pipe,
 			   size_t len, unsigned int flags);
···
 #endif
 }
 
-static inline void tls_err_abort(struct sock *sk, int err)
-{
-	sk->sk_err = err;
-	sk_error_report(sk);
-}
-
 static inline bool tls_bigint_increment(unsigned char *seq, int len)
 {
 	int i;
···
 					 struct cipher_context *ctx)
 {
 	if (tls_bigint_increment(ctx->rec_seq, prot->rec_seq_size))
-		tls_err_abort(sk, EBADMSG);
+		tls_err_abort(sk, -EBADMSG);
 
 	if (prot->version != TLS_1_3_VERSION &&
 	    prot->cipher_type != TLS_CIPHER_CHACHA20_POLY1305)

include/net/udp.h

···
 	 * CHECKSUM_NONE in __udp_gso_segment. UDP GRO indeed builds partial
 	 * packets in udp_gro_complete_segment. As does UDP GSO, verified by
 	 * udp_send_skb. But when those packets are looped in dev_loopback_xmit
-	 * their ip_summed is set to CHECKSUM_UNNECESSARY. Reset in this
-	 * specific case, where PARTIAL is both correct and required.
+	 * their ip_summed CHECKSUM_NONE is changed to CHECKSUM_UNNECESSARY.
+	 * Reset in this specific case, where PARTIAL is both correct and
+	 * required.
 	 */
 	if (skb->pkt_type == PACKET_LOOPBACK)
 		skb->ip_summed = CHECKSUM_PARTIAL;

kernel/bpf/arraymap.c

···
 	INIT_WORK(&aux->work, prog_array_map_clear_deferred);
 	INIT_LIST_HEAD(&aux->poke_progs);
 	mutex_init(&aux->poke_mutex);
+	spin_lock_init(&aux->owner.lock);
 
 	map = array_map_alloc(attr);
 	if (IS_ERR(map)) {

kernel/bpf/core.c

···
 int bpf_jit_kallsyms __read_mostly = IS_BUILTIN(CONFIG_BPF_JIT_DEFAULT_ON);
 int bpf_jit_harden   __read_mostly;
 long bpf_jit_limit   __read_mostly;
+long bpf_jit_limit_max __read_mostly;
 
 static void
 bpf_prog_ksym_set_addr(struct bpf_prog *prog)
···
 static int __init bpf_jit_charge_init(void)
 {
 	/* Only used as heuristic here to derive limit. */
-	bpf_jit_limit = min_t(u64, round_up(bpf_jit_alloc_exec_limit() >> 2,
+	bpf_jit_limit_max = bpf_jit_alloc_exec_limit();
+	bpf_jit_limit = min_t(u64, round_up(bpf_jit_limit_max >> 2,
 					    PAGE_SIZE), LONG_MAX);
 	return 0;
 }
···
 bool bpf_prog_array_compatible(struct bpf_array *array,
 			       const struct bpf_prog *fp)
 {
+	bool ret;
+
 	if (fp->kprobe_override)
 		return false;
 
-	if (!array->aux->type) {
+	spin_lock(&array->aux->owner.lock);
+
+	if (!array->aux->owner.type) {
 		/* There's no owner yet where we could check for
 		 * compatibility.
 		 */
-		array->aux->type  = fp->type;
-		array->aux->jited = fp->jited;
-		return true;
+		array->aux->owner.type  = fp->type;
+		array->aux->owner.jited = fp->jited;
+		ret = true;
+	} else {
+		ret = array->aux->owner.type  == fp->type &&
+		      array->aux->owner.jited == fp->jited;
 	}
-
-	return array->aux->type  == fp->type &&
-	       array->aux->jited == fp->jited;
+	spin_unlock(&array->aux->owner.lock);
+	return ret;
 }
 
 static int bpf_check_tail_call(const struct bpf_prog *fp)

kernel/bpf/syscall.c

···
 
 	if (map->map_type == BPF_MAP_TYPE_PROG_ARRAY) {
 		array = container_of(map, struct bpf_array, map);
-		type  = array->aux->type;
-		jited = array->aux->jited;
+		spin_lock(&array->aux->owner.lock);
+		type  = array->aux->owner.type;
+		jited = array->aux->owner.jited;
+		spin_unlock(&array->aux->owner.lock);
 	}
 
 	seq_printf(m,
···
 	void __user *values = u64_to_user_ptr(attr->batch.values);
 	void __user *keys = u64_to_user_ptr(attr->batch.keys);
 	u32 value_size, cp, max_count;
-	int ufd = attr->map_fd;
+	int ufd = attr->batch.map_fd;
 	void *key, *value;
 	struct fd f;
 	int err = 0;
 
-	f = fdget(ufd);
 	if (attr->batch.elem_flags & ~BPF_F_LOCK)
 		return -EINVAL;
 
···
 		return -ENOMEM;
 	}
 
+	f = fdget(ufd); /* bpf_map_do_batch() guarantees ufd is valid */
 	for (cp = 0; cp < max_count; cp++) {
 		err = -EFAULT;
 		if (copy_from_user(key, keys + cp * map->key_size,
···
 
 	kvfree(value);
 	kvfree(key);
+	fdput(f);
 	return err;
 }
 

kernel/cgroup/cgroup.c

···
 	 * And don't kill the default root.
 	 */
 	if (list_empty(&root->cgrp.self.children) && root != &cgrp_dfl_root &&
-	    !percpu_ref_is_dying(&root->cgrp.self.refcnt))
+	    !percpu_ref_is_dying(&root->cgrp.self.refcnt)) {
+		cgroup_bpf_offline(&root->cgrp);
 		percpu_ref_kill(&root->cgrp.self.refcnt);
+	}
 	cgroup_put(&root->cgrp);
 	kernfs_kill_sb(sb);
 }

kernel/sched/core.c

···
 		finish_arch_post_lock_switch();
 	}
 
+	scs_task_reset(current);
 	/* finish_cpu(), as ran on the BP, will clean up the active_mm state */
 }
 

kernel/trace/trace_eprobe.c

···
 
 	if (IS_ERR(ep)) {
 		ret = PTR_ERR(ep);
-		/* This must return -ENOMEM, else there is a bug */
-		WARN_ON_ONCE(ret != -ENOMEM);
+		/* This must return -ENOMEM or misssing event, else there is a bug */
+		WARN_ON_ONCE(ret != -ENOMEM && ret != -ENODEV);
 		ep = NULL;
 		goto error;
 	}

mm/secretmem.c

···
 #include <linux/secretmem.h>
 #include <linux/set_memory.h>
 #include <linux/sched/signal.h>
-#include <linux/refcount.h>
 
 #include <uapi/linux/magic.h>
 
···
 MODULE_PARM_DESC(secretmem_enable,
 		 "Enable secretmem and memfd_secret(2) system call");
 
-static refcount_t secretmem_users;
+static atomic_t secretmem_users;
 
 bool secretmem_active(void)
 {
-	return !!refcount_read(&secretmem_users);
+	return !!atomic_read(&secretmem_users);
 }
 
 static vm_fault_t secretmem_fault(struct vm_fault *vmf)
···
 
 static int secretmem_release(struct inode *inode, struct file *file)
 {
-	refcount_dec(&secretmem_users);
+	atomic_dec(&secretmem_users);
 	return 0;
 }
 
···
 
 	if (flags & ~(SECRETMEM_FLAGS_MASK | O_CLOEXEC))
 		return -EINVAL;
+	if (atomic_read(&secretmem_users) < 0)
+		return -ENFILE;
 
 	fd = get_unused_fd_flags(flags & O_CLOEXEC);
 	if (fd < 0)
···
 	file->f_flags |= O_LARGEFILE;
 
 	fd_install(fd, file);
-	refcount_inc(&secretmem_users);
+	atomic_inc(&secretmem_users);
 	return fd;
 
 err_put_fd:

net/batman-adv/bridge_loop_avoidance.c

···
 		return 0;
 
 	bat_priv->bla.claim_hash = batadv_hash_new(128);
-	bat_priv->bla.backbone_hash = batadv_hash_new(32);
-
-	if (!bat_priv->bla.claim_hash || !bat_priv->bla.backbone_hash)
+	if (!bat_priv->bla.claim_hash)
 		return -ENOMEM;
+
+	bat_priv->bla.backbone_hash = batadv_hash_new(32);
+	if (!bat_priv->bla.backbone_hash) {
+		batadv_hash_destroy(bat_priv->bla.claim_hash);
+		return -ENOMEM;
+	}
 
 	batadv_hash_set_lock_class(bat_priv->bla.claim_hash,
 				   &batadv_claim_hash_lock_class_key);

net/batman-adv/main.c

···
 
 	bat_priv->gw.generation = 0;
 
-	ret = batadv_v_mesh_init(bat_priv);
-	if (ret < 0)
-		goto err;
-
 	ret = batadv_originator_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_orig;
+	}
 
 	ret = batadv_tt_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_tt;
+	}
+
+	ret = batadv_v_mesh_init(bat_priv);
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_v;
+	}
 
 	ret = batadv_bla_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_bla;
+	}
 
 	ret = batadv_dat_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_dat;
+	}
 
 	ret = batadv_nc_mesh_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_nc;
+	}
 
 	batadv_gw_init(bat_priv);
 	batadv_mcast_init(bat_priv);
···
 
 	return 0;
 
-err:
-	batadv_mesh_free(soft_iface);
+err_nc:
+	batadv_dat_free(bat_priv);
+err_dat:
+	batadv_bla_free(bat_priv);
+err_bla:
+	batadv_v_mesh_free(bat_priv);
+err_v:
+	batadv_tt_free(bat_priv);
+err_tt:
+	batadv_originator_free(bat_priv);
+err_orig:
+	batadv_purge_outstanding_packets(bat_priv, NULL);
+	atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
+
 	return ret;
 }
 

net/batman-adv/network-coding.c

···
 				   &batadv_nc_coding_hash_lock_class_key);
 
 	bat_priv->nc.decoding_hash = batadv_hash_new(128);
-	if (!bat_priv->nc.decoding_hash)
+	if (!bat_priv->nc.decoding_hash) {
+		batadv_hash_destroy(bat_priv->nc.coding_hash);
 		goto err;
+	}
 
 	batadv_hash_set_lock_class(bat_priv->nc.decoding_hash,
 				   &batadv_nc_decoding_hash_lock_class_key);

net/batman-adv/translation-table.c

···
 		return ret;
 
 	ret = batadv_tt_global_init(bat_priv);
-	if (ret < 0)
+	if (ret < 0) {
+		batadv_tt_local_table_free(bat_priv);
 		return ret;
+	}
 
 	batadv_tvlv_handler_register(bat_priv, batadv_tt_tvlv_ogm_handler_v1,
 				     batadv_tt_tvlv_unicast_handler_v1,

net/core/dev.c

···
 
 		qoffset = sb_dev->tc_to_txq[tc].offset;
 		qcount = sb_dev->tc_to_txq[tc].count;
+		if (unlikely(!qcount)) {
+			net_warn_ratelimited("%s: invalid qcount, qoffset %u for tc %u\n",
+					     sb_dev->name, qoffset, tc);
+			qoffset = 0;
+			qcount = dev->real_num_tx_queues;
+		}
 	}
 
 	if (skb_rx_queue_recorded(skb)) {
···
 	skb_reset_mac_header(skb);
 	__skb_pull(skb, skb_network_offset(skb));
 	skb->pkt_type = PACKET_LOOPBACK;
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
+	if (skb->ip_summed == CHECKSUM_NONE)
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	WARN_ON(!skb_dst(skb));
 	skb_dst_force(skb);
 	netif_rx_ni(skb);

net/core/net-sysfs.c

···
 int netdev_change_owner(struct net_device *ndev, const struct net *net_old,
 			const struct net *net_new)
 {
+	kuid_t old_uid = GLOBAL_ROOT_UID, new_uid = GLOBAL_ROOT_UID;
+	kgid_t old_gid = GLOBAL_ROOT_GID, new_gid = GLOBAL_ROOT_GID;
 	struct device *dev = &ndev->dev;
-	kuid_t old_uid, new_uid;
-	kgid_t old_gid, new_gid;
 	int error;
 
 	net_ns_get_ownership(net_old, &old_uid, &old_gid);

net/core/skbuff.c

···
 #include <linux/indirect_call_wrapper.h>
 
 #include "datagram.h"
+#include "sock_destructor.h"
 
 struct kmem_cache *skbuff_head_cache __ro_after_init;
 static struct kmem_cache *skbuff_fclone_cache __ro_after_init;
···
 struct sk_buff *skb_expand_head(struct sk_buff *skb, unsigned int headroom)
 {
 	int delta = headroom - skb_headroom(skb);
+	int osize = skb_end_offset(skb);
+	struct sock *sk = skb->sk;
 
 	if (WARN_ONCE(delta <= 0,
 		      "%s is expecting an increase in the headroom", __func__))
 		return skb;
 
-	/* pskb_expand_head() might crash, if skb is shared */
-	if (skb_shared(skb)) {
+	delta = SKB_DATA_ALIGN(delta);
+	/* pskb_expand_head() might crash, if skb is shared. */
+	if (skb_shared(skb) || !is_skb_wmem(skb)) {
 		struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC);
 
-		if (likely(nskb)) {
-			if (skb->sk)
-				skb_set_owner_w(nskb, skb->sk);
-			consume_skb(skb);
-		} else {
-			kfree_skb(skb);
-		}
+		if (unlikely(!nskb))
+			goto fail;
+
+		if (sk)
+			skb_set_owner_w(nskb, sk);
+		consume_skb(skb);
 		skb = nskb;
 	}
-	if (skb &&
-	    pskb_expand_head(skb, SKB_DATA_ALIGN(delta), 0, GFP_ATOMIC)) {
-		kfree_skb(skb);
-		skb = NULL;
+	if (pskb_expand_head(skb, delta, 0, GFP_ATOMIC))
+		goto fail;
+
+	if (sk && is_skb_wmem(skb)) {
+		delta = skb_end_offset(skb) - osize;
+		refcount_add(delta, &sk->sk_wmem_alloc);
+		skb->truesize += delta;
 	}
 	return skb;
+
+fail:
+	kfree_skb(skb);
+	return NULL;
 }
 EXPORT_SYMBOL(skb_expand_head);
 

net/core/skmsg.c

···
 }
 EXPORT_SYMBOL_GPL(sk_msg_recvmsg);
 
+bool sk_msg_is_readable(struct sock *sk)
+{
+	struct sk_psock *psock;
+	bool empty = true;
+
+	rcu_read_lock();
+	psock = sk_psock(sk);
+	if (likely(psock))
+		empty = list_empty(&psock->ingress_msg);
+	rcu_read_unlock();
+	return !empty;
+}
+EXPORT_SYMBOL_GPL(sk_msg_is_readable);
+
 static struct sk_msg *sk_psock_create_ingress_msg(struct sock *sk,
 						  struct sk_buff *skb)
 {

net/core/sock_destructor.h

···
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _NET_CORE_SOCK_DESTRUCTOR_H
+#define _NET_CORE_SOCK_DESTRUCTOR_H
+#include <net/tcp.h>
+
+static inline bool is_skb_wmem(const struct sk_buff *skb)
+{
+	return skb->destructor == sock_wfree ||
+	       skb->destructor == __sock_wfree ||
+	       (IS_ENABLED(CONFIG_INET) && skb->destructor == tcp_wfree);
+}
+#endif

net/core/sysctl_net_core.c

···
 		.mode		= 0600,
 		.proc_handler	= proc_dolongvec_minmax_bpf_restricted,
 		.extra1		= &long_one,
-		.extra2		= &long_max,
+		.extra2		= &bpf_jit_limit_max,
 	},
 #endif
 	{

net/ipv4/tcp.c

···
 {
 	if (tcp_epollin_ready(sk, target))
 		return true;
-
-	if (sk->sk_prot->stream_memory_read)
-		return sk->sk_prot->stream_memory_read(sk);
-	return false;
+	return sk_is_readable(sk);
 }
 
 /*

net/ipv4/tcp_bpf.c

···
 EXPORT_SYMBOL_GPL(tcp_bpf_sendmsg_redir);
 
 #ifdef CONFIG_BPF_SYSCALL
-static bool tcp_bpf_stream_read(const struct sock *sk)
-{
-	struct sk_psock *psock;
-	bool empty = true;
-
-	rcu_read_lock();
-	psock = sk_psock(sk);
-	if (likely(psock))
-		empty = list_empty(&psock->ingress_msg);
-	rcu_read_unlock();
-	return !empty;
-}
-
 static int tcp_msg_wait_data(struct sock *sk, struct sk_psock *psock,
 			     long timeo)
 {
···
 	bool cork = false, enospc = sk_msg_full(msg);
 	struct sock *sk_redir;
 	u32 tosend, delta = 0;
+	u32 eval = __SK_NONE;
 	int ret;
 
 more_data:
···
 	case __SK_REDIRECT:
 		sk_redir = psock->sk_redir;
 		sk_msg_apply_bytes(psock, tosend);
+		if (!psock->apply_bytes) {
+			/* Clean up before releasing the sock lock. */
+			eval = psock->eval;
+			psock->eval = __SK_NONE;
+			psock->sk_redir = NULL;
+		}
 		if (psock->cork) {
 			cork = true;
 			psock->cork = NULL;
 		}
 		sk_msg_return(sk, msg, tosend);
 		release_sock(sk);
+
 		ret = tcp_bpf_sendmsg_redir(sk_redir, msg, tosend, flags);
+
+		if (eval == __SK_REDIRECT)
+			sock_put(sk_redir);
+
 		lock_sock(sk);
 		if (unlikely(ret < 0)) {
 			int free = sk_msg_free_nocharge(sk, msg);
···
 	prot[TCP_BPF_BASE].unhash		= sock_map_unhash;
 	prot[TCP_BPF_BASE].close		= sock_map_close;
 	prot[TCP_BPF_BASE].recvmsg		= tcp_bpf_recvmsg;
-	prot[TCP_BPF_BASE].stream_memory_read	= tcp_bpf_stream_read;
+	prot[TCP_BPF_BASE].sock_is_readable	= sk_msg_is_readable;
 
 	prot[TCP_BPF_TX]			= prot[TCP_BPF_BASE];
 	prot[TCP_BPF_TX].sendmsg		= tcp_bpf_sendmsg;

net/ipv4/udp.c

···
 	    !(sk->sk_shutdown & RCV_SHUTDOWN) && first_packet_length(sk) == -1)
 		mask &= ~(EPOLLIN | EPOLLRDNORM);
 
+	/* psock ingress_msg queue should not contain any bad checksum frames */
+	if (sk_is_readable(sk))
+		mask |= EPOLLIN | EPOLLRDNORM;
 	return mask;
 
 }

net/ipv4/udp_bpf.c

···
 	*prot        = *base;
 	prot->close  = sock_map_close;
 	prot->recvmsg = udp_bpf_recvmsg;
+	prot->sock_is_readable = sk_msg_is_readable;
 }
 
 static void udp_bpf_check_v6_needs_rebuild(struct proto *ops)

net/mac80211/mesh.c

···
 				 u8 *ie, u8 ie_len)
 {
 	struct ieee80211_supported_band *sband;
-	const u8 *cap;
+	const struct element *cap;
 	const struct ieee80211_he_operation *he_oper = NULL;
 
 	sband = ieee80211_get_sband(sdata);
···
 
 	sdata->vif.bss_conf.he_support = true;
 
-	cap = cfg80211_find_ext_ie(WLAN_EID_EXT_HE_OPERATION, ie, ie_len);
-	if (cap && cap[1] >= ieee80211_he_oper_size(&cap[3]))
-		he_oper = (void *)(cap + 3);
+	cap = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_OPERATION, ie, ie_len);
+	if (cap && cap->datalen >= 1 + sizeof(*he_oper) &&
+	    cap->datalen >= 1 + ieee80211_he_oper_size(cap->data + 1))
+		he_oper = (void *)(cap->data + 1);
 
 	if (he_oper)
 		sdata->vif.bss_conf.he_oper.params =

net/mptcp/options.c

···
 		mpext = mptcp_get_ext(skb);
 		data_len = mpext ? mpext->data_len : 0;
 
-		/* we will check ext_copy.data_len in mptcp_write_options() to
+		/* we will check ops->data_len in mptcp_write_options() to
 		 * discriminate between TCPOLEN_MPTCP_MPC_ACK_DATA and
 		 * TCPOLEN_MPTCP_MPC_ACK
 		 */
-		opts->ext_copy.data_len = data_len;
+		opts->data_len = data_len;
 		opts->suboptions = OPTION_MPTCP_MPC_ACK;
 		opts->sndr_key = subflow->local_key;
 		opts->rcvr_key = subflow->remote_key;
···
 			len = TCPOLEN_MPTCP_MPC_ACK_DATA;
 			if (opts->csum_reqd) {
 				/* we need to propagate more info to csum the pseudo hdr */
-				opts->ext_copy.data_seq = mpext->data_seq;
-				opts->ext_copy.subflow_seq = mpext->subflow_seq;
-				opts->ext_copy.csum = mpext->csum;
+				opts->data_seq = mpext->data_seq;
+				opts->subflow_seq = mpext->subflow_seq;
+				opts->csum = mpext->csum;
 				len += TCPOLEN_MPTCP_DSS_CHECKSUM;
 			}
 			*size = ALIGN(len, 4);
···
 		WRITE_ONCE(msk->rcv_wnd_sent, ack_seq);
 }
 
-static u16 mptcp_make_csum(const struct mptcp_ext *mpext)
+static u16 __mptcp_make_csum(u64 data_seq, u32 subflow_seq, u16 data_len, __sum16 sum)
 {
 	struct csum_pseudo_header header;
 	__wsum csum;
···
 	 * always the 64-bit value, irrespective of what length is used in the
 	 * DSS option itself.
 	 */
-	header.data_seq = cpu_to_be64(mpext->data_seq);
-	header.subflow_seq = htonl(mpext->subflow_seq);
-	header.data_len = htons(mpext->data_len);
+	header.data_seq = cpu_to_be64(data_seq);
+	header.subflow_seq = htonl(subflow_seq);
+	header.data_len = htons(data_len);
 	header.csum = 0;
 
-	csum = csum_partial(&header, sizeof(header), ~csum_unfold(mpext->csum));
+	csum = csum_partial(&header, sizeof(header), ~csum_unfold(sum));
 	return (__force u16)csum_fold(csum);
+}
+
+static u16 mptcp_make_csum(const struct mptcp_ext *mpext)
+{
+	return __mptcp_make_csum(mpext->data_seq, mpext->subflow_seq, mpext->data_len,
+				 mpext->csum);
 }
 
 void mptcp_write_options(__be32 *ptr, const struct tcp_sock *tp,
···
 			len = TCPOLEN_MPTCP_MPC_SYN;
 		} else if (OPTION_MPTCP_MPC_SYNACK & opts->suboptions) {
 			len = TCPOLEN_MPTCP_MPC_SYNACK;
-		} else if (opts->ext_copy.data_len) {
+		} else if (opts->data_len) {
 			len = TCPOLEN_MPTCP_MPC_ACK_DATA;
 			if (opts->csum_reqd)
 				len += TCPOLEN_MPTCP_DSS_CHECKSUM;
···
 
 		put_unaligned_be64(opts->rcvr_key, ptr);
 		ptr += 2;
-		if (!opts->ext_copy.data_len)
+		if (!opts->data_len)
 			goto mp_capable_done;
 
 		if (opts->csum_reqd) {
-			put_unaligned_be32(opts->ext_copy.data_len << 16 |
-					   mptcp_make_csum(&opts->ext_copy), ptr);
+			put_unaligned_be32(opts->data_len << 16 |
+					   __mptcp_make_csum(opts->data_seq,
+							     opts->subflow_seq,
+							     opts->data_len,
+							     opts->csum), ptr);
 		} else {
-			put_unaligned_be32(opts->ext_copy.data_len << 16 |
+			put_unaligned_be32(opts->data_len << 16 |
 					   TCPOPT_NOP << 8 | TCPOPT_NOP, ptr);
 		}
 		ptr += 1;

net/sctp/sm_statefuns.c

···
 					void *arg,
 					struct sctp_cmd_seq *commands);
 
+static enum sctp_disposition
+__sctp_sf_do_9_2_reshutack(struct net *net, const struct sctp_endpoint *ep,
+			   const struct sctp_association *asoc,
+			   const union sctp_subtype type, void *arg,
+			   struct sctp_cmd_seq *commands);
+
 /* Small helper function that checks if the chunk length
  * is of the appropriate length.  The 'required_length' argument
  * is set to be the size of a specific chunk we are testing.
···
 	if (!chunk->singleton)
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
+	/* Make sure that the INIT chunk has a valid length.
+	 * Normally, this would cause an ABORT with a Protocol Violation
+	 * error, but since we don't have an association, we'll
+	 * just discard the packet.
+	 */
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* If the packet is an OOTB packet which is temporarily on the
 	 * control endpoint, respond with an ABORT.
 	 */
···
 	 */
 	if (chunk->sctp_hdr->vtag != 0)
 		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
-
-	/* Make sure that the INIT chunk has a valid length.
-	 * Normally, this would cause an ABORT with a Protocol Violation
-	 * error, but since we don't have an association, we'll
-	 * just discard the packet.
-	 */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
-		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* If the INIT is coming toward a closing socket, we'll send back
 	 * and ABORT.  Essentially, this catches the race of INIT being
···
 	struct sock *sk;
 	int error = 0;
 
+	if (asoc && !sctp_vtag_verify(chunk, asoc))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* If the packet is an OOTB packet which is temporarily on the
 	 * control endpoint, respond with an ABORT.
 	 */
···
 	 * in sctp_unpack_cookie().
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
-		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
+						  commands);
 
 	/* If the endpoint is not listening or if the number of associations
 	 * on the TCP-style socket exceed the max backlog, respond with an
···
 	if (!chunk->singleton)
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
+	/* Make sure that the INIT chunk has a valid length. */
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* 3.1 A packet containing an INIT chunk MUST have a zero Verification
 	 * Tag.
 	 */
 	if (chunk->sctp_hdr->vtag != 0)
 		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
-
-	/* Make sure that the INIT chunk has a valid length.
-	 * In this case, we generate a protocol violation since we have
-	 * an association established.
-	 */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
-		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-						  commands);
 
 	if (SCTP_INPUT_CB(chunk->skb)->encap_port != chunk->transport->encap_port)
 		return sctp_sf_new_encap_port(net, ep, asoc, type, arg, commands);
···
 	 * its peer.
 	*/
 	if (sctp_state(asoc, SHUTDOWN_ACK_SENT)) {
-		disposition = sctp_sf_do_9_2_reshutack(net, ep, asoc,
-				SCTP_ST_CHUNK(chunk->chunk_hdr->type),
-				chunk, commands);
+		disposition = __sctp_sf_do_9_2_reshutack(net, ep, asoc,
+							 SCTP_ST_CHUNK(chunk->chunk_hdr->type),
+							 chunk, commands);
 		if (SCTP_DISPOSITION_NOMEM == disposition)
 			goto nomem;
 
···
 	 * enough for the chunk header.  Cookie length verification is
 	 * done later.
 	 */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
-		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-						  commands);
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr))) {
+		if (!sctp_vtag_verify(chunk, asoc))
+			asoc = NULL;
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg, commands);
+	}
 
 	/* "Decode" the chunk.  We have no optional parameters so we
 	 * are in good shape.
···
 	 */
 	if (SCTP_ADDR_DEL ==
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	if (!sctp_err_chunk_valid(chunk))
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
···
 	 */
 	if (SCTP_ADDR_DEL ==
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	if (!sctp_err_chunk_valid(chunk))
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
···
 	 */
 	if (SCTP_ADDR_DEL ==
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	if (!sctp_err_chunk_valid(chunk))
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
···
  * that belong to this association, it should discard the INIT chunk and
  * retransmit the SHUTDOWN ACK chunk.
  */
-enum sctp_disposition sctp_sf_do_9_2_reshutack(
-					struct net *net,
-					const struct sctp_endpoint *ep,
-					const struct sctp_association *asoc,
-					const union sctp_subtype type,
-					void *arg,
-					struct sctp_cmd_seq *commands)
+static enum sctp_disposition
+__sctp_sf_do_9_2_reshutack(struct net *net, const struct sctp_endpoint *ep,
+			   const struct sctp_association *asoc,
+			   const union sctp_subtype type, void *arg,
+			   struct sctp_cmd_seq *commands)
 {
 	struct sctp_chunk *chunk = arg;
 	struct sctp_chunk *reply;
···
 	return SCTP_DISPOSITION_CONSUME;
 nomem:
 	return SCTP_DISPOSITION_NOMEM;
+}
+
+enum sctp_disposition
+sctp_sf_do_9_2_reshutack(struct net *net, const struct sctp_endpoint *ep,
+			 const struct sctp_association *asoc,
+			 const union sctp_subtype type, void *arg,
+			 struct sctp_cmd_seq *commands)
+{
+	struct sctp_chunk *chunk = arg;
+
+	if (!chunk->singleton)
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
+	if (chunk->sctp_hdr->vtag != 0)
+		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
+
+	return __sctp_sf_do_9_2_reshutack(net, ep, asoc, type, arg, commands);
 }
 
 /*
···
 
 	SCTP_INC_STATS(net, SCTP_MIB_OUTOFBLUES);
 
+	if (asoc && !sctp_vtag_verify(chunk, asoc))
+		asoc = NULL;
+
 	ch = (struct sctp_chunkhdr *)chunk->chunk_hdr;
 	do {
 		/* Report violation if the chunk is less then minimal */
···
 
 	SCTP_INC_STATS(net, SCTP_MIB_OUTCTRLCHUNKS);
 
-	/* If the chunk length is invalid, we don't want to process
-	 * the reset of the packet.
-	 */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
-		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
-
 	/* We need to discard the rest of the packet to prevent
 	 * potential boomming attacks from additional bundled chunks.
 	 * This is documented in SCTP Threats ID.
···
 					    struct sctp_cmd_seq *commands)
 {
 	struct sctp_chunk *chunk = arg;
+
+	if (!sctp_vtag_verify(chunk, asoc))
+		asoc = NULL;
 
 	/* Make sure that the SHUTDOWN_ACK chunk has a valid length. */
 	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
···
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 	}
 
+	/* Make sure that the ASCONF ADDIP chunk has a valid length.  */
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_addip_chunk)))
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
+						  commands);
+
 	/* ADD-IP: Section 4.1.1
 	 * This chunk MUST be sent in an authenticated way by using
 	 * the mechanism defined in [I-D.ietf-tsvwg-sctp-auth]. If this chunk
···
 	 */
 	if (!asoc->peer.asconf_capable ||
 	    (!net->sctp.addip_noauth && !chunk->auth))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg,
-					     commands);
-
-	/* Make sure that the ASCONF ADDIP chunk has a valid length.  */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_addip_chunk)))
-		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-						  commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	hdr = (struct sctp_addiphdr *)chunk->skb->data;
 	serial = ntohl(hdr->serial);
···
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 	}
 
+	/* Make sure that the ADDIP chunk has a valid length.  */
+	if (!sctp_chunk_length_valid(asconf_ack,
+				     sizeof(struct sctp_addip_chunk)))
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
+						  commands);
+
 	/* ADD-IP, Section 4.1.2:
 	 * This chunk MUST be sent in an authenticated way by using
 	 * the mechanism defined in [I-D.ietf-tsvwg-sctp-auth]. If this chunk
···
 	 */
 	if (!asoc->peer.asconf_capable ||
 	    (!net->sctp.addip_noauth && !asconf_ack->auth))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg,
-					     commands);
-
-	/* Make sure that the ADDIP chunk has a valid length.  */
-	if (!sctp_chunk_length_valid(asconf_ack,
-				     sizeof(struct sctp_addip_chunk)))
-		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-						  commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	addip_hdr = (struct sctp_addiphdr *)asconf_ack->skb->data;
 	rcvd_serial = ntohl(addip_hdr->serial);
···
 {
 	struct sctp_chunk *chunk = arg;
 
+	if (asoc && !sctp_vtag_verify(chunk, asoc))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* Make sure that the chunk has a valid length.
 	 * Since we don't know the chunk type, we use a general
 	 * chunkhdr structure to make a comparison.
···
 					struct sctp_cmd_seq *commands)
 {
 	struct sctp_chunk *chunk = arg;
+
+	if (!sctp_vtag_verify(chunk, asoc))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	/* Make sure that the chunk has a valid length. */
 	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
···
 		 * yet.
 		 */
 		switch (chunk->chunk_hdr->type) {
+		case SCTP_CID_INIT:
 		case SCTP_CID_INIT_ACK:
 		{
 			struct sctp_initack_chunk *initack;

net/smc/af_smc.c

···
 	if (smc->clcsock->sk->sk_err) {
 		smc->sk.sk_err = smc->clcsock->sk->sk_err;
 	} else if ((1 << smc->clcsock->sk->sk_state) &
-					(TCPF_SYN_SENT | TCP_SYN_RECV)) {
+					(TCPF_SYN_SENT | TCPF_SYN_RECV)) {
 		rc = sk_stream_wait_connect(smc->clcsock->sk, &timeo);
 		if ((rc == -EPIPE) &&
 		    ((1 << smc->clcsock->sk->sk_state) &

net/smc/smc_llc.c

···
 			    link->smcibdev->ibdev->name, link->ibport);
 	link->state = SMC_LNK_ACTIVE;
 	if (link->lgr->llc_testlink_time) {
-		link->llc_testlink_time = link->lgr->llc_testlink_time * HZ;
+		link->llc_testlink_time = link->lgr->llc_testlink_time;
 		schedule_delayed_work(&link->llc_testlink_wrk,
 				      link->llc_testlink_time);
 	}

net/tipc/crypto.c

···
 	u16 key_gen = msg_key_gen(hdr);
 	u16 size = msg_data_sz(hdr);
 	u8 *data = msg_data(hdr);
+	unsigned int keylen;
+
+	/* Verify whether the size can exist in the packet */
+	if (unlikely(size < sizeof(struct tipc_aead_key) + TIPC_AEAD_KEYLEN_MIN)) {
+		pr_debug("%s: message data size is too small\n", rx->name);
+		goto exit;
+	}
+
+	keylen = ntohl(*((__be32 *)(data + TIPC_AEAD_ALG_NAME)));
+
+	/* Verify the supplied size values */
+	if (unlikely(size != keylen + sizeof(struct tipc_aead_key) ||
+		     keylen > TIPC_AEAD_KEY_SIZE_MAX)) {
+		pr_debug("%s: invalid MSG_CRYPTO key size\n", rx->name);
+		goto exit;
+	}
 
 	spin_lock(&rx->lock);
 	if (unlikely(rx->skey || (key_gen == rx->key_gen && rx->key.keys))) {
 		pr_err("%s: key existed <%p>, gen %d vs %d\n", rx->name,
 		       rx->skey, key_gen, rx->key_gen);
-		goto exit;
+		goto exit_unlock;
 	}
 
 	/* Allocate memory for the key */
 	skey = kmalloc(size, GFP_ATOMIC);
 	if (unlikely(!skey)) {
 		pr_err("%s: unable to allocate memory for skey\n", rx->name);
-		goto exit;
+		goto exit_unlock;
 	}
 
 	/* Copy key from msg data */
-	skey->keylen = ntohl(*((__be32 *)(data + TIPC_AEAD_ALG_NAME)));
+	skey->keylen = keylen;
 	memcpy(skey->alg_name, data, TIPC_AEAD_ALG_NAME);
 	memcpy(skey->key, data + TIPC_AEAD_ALG_NAME + sizeof(__be32),
 	       skey->keylen);
-
-	/* Sanity check */
-	if (unlikely(size != tipc_aead_key_size(skey))) {
-		kfree(skey);
-		skey = NULL;
-		goto exit;
-	}
 
 	rx->key_gen = key_gen;
 	rx->skey_mode = msg_key_mode(hdr);
···
 	rx->nokey = 0;
 	mb(); /* for nokey flag */
 
-exit:
+exit_unlock:
 	spin_unlock(&rx->lock);
 
+exit:
 	/* Schedule the key attaching on this crypto */
 	if (likely(skey && queue_delayed_work(tx->wq, &rx->work, 0)))
 		return true;

net/tls/tls_main.c

···
 
 	prot[TLS_BASE][TLS_SW] = prot[TLS_BASE][TLS_BASE];
 	prot[TLS_BASE][TLS_SW].recvmsg		  = tls_sw_recvmsg;
-	prot[TLS_BASE][TLS_SW].stream_memory_read = tls_sw_stream_read;
+	prot[TLS_BASE][TLS_SW].sock_is_readable   = tls_sw_sock_is_readable;
 	prot[TLS_BASE][TLS_SW].close		  = tls_sk_proto_close;
 
 	prot[TLS_SW][TLS_SW] = prot[TLS_SW][TLS_BASE];
 	prot[TLS_SW][TLS_SW].recvmsg		= tls_sw_recvmsg;
-	prot[TLS_SW][TLS_SW].stream_memory_read	= tls_sw_stream_read;
+	prot[TLS_SW][TLS_SW].sock_is_readable   = tls_sw_sock_is_readable;
 	prot[TLS_SW][TLS_SW].close		= tls_sk_proto_close;
 
 #ifdef CONFIG_TLS_DEVICE

net/tls/tls_sw.c

···
  * SOFTWARE.
  */
 
+#include <linux/bug.h>
 #include <linux/sched/signal.h>
 #include <linux/module.h>
 #include <linux/splice.h>
···
 
 #include <net/strparser.h>
 #include <net/tls.h>
+
+noinline void tls_err_abort(struct sock *sk, int err)
+{
+	WARN_ON_ONCE(err >= 0);
+	/* sk->sk_err should contain a positive error code. */
+	sk->sk_err = -err;
+	sk_error_report(sk);
+}
 
 static int __skb_nsg(struct sk_buff *skb, int offset, int len,
                      unsigned int recursion_level)
···
 
 tx_err:
 	if (rc < 0 && rc != -EAGAIN)
-		tls_err_abort(sk, EBADMSG);
+		tls_err_abort(sk, -EBADMSG);
 
 	return rc;
 }
···
 
 		/* If err is already set on socket, return the same code */
 		if (sk->sk_err) {
-			ctx->async_wait.err = sk->sk_err;
+			ctx->async_wait.err = -sk->sk_err;
 		} else {
 			ctx->async_wait.err = err;
 			tls_err_abort(sk, err);
···
 			       msg_pl->sg.size + prot->tail_size, i);
 	if (rc < 0) {
 		if (rc != -EINPROGRESS) {
-			tls_err_abort(sk, EBADMSG);
+			tls_err_abort(sk, -EBADMSG);
 			if (split) {
 				tls_ctx->pending_open_record_frags = true;
 				tls_merge_open_record(sk, rec, tmp, orig_end);
···
 		err = decrypt_skb_update(sk, skb, &msg->msg_iter,
 					 &chunk, &zc, async_capable);
 		if (err < 0 && err != -EINPROGRESS) {
-			tls_err_abort(sk, EBADMSG);
+			tls_err_abort(sk, -EBADMSG);
 			goto recv_end;
 		}
 
···
 		}
 
 		if (err < 0) {
-			tls_err_abort(sk, EBADMSG);
+			tls_err_abort(sk, -EBADMSG);
 			goto splice_read_end;
 		}
 		ctx->decrypted = 1;
···
 	return copied ? : err;
 }
 
-bool tls_sw_stream_read(const struct sock *sk)
+bool tls_sw_sock_is_readable(struct sock *sk)
 {
 	struct tls_context *tls_ctx = tls_get_ctx(sk);
 	struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);

net/unix/af_unix.c

···
 	/* readable? */
 	if (!skb_queue_empty_lockless(&sk->sk_receive_queue))
 		mask |= EPOLLIN | EPOLLRDNORM;
+	if (sk_is_readable(sk))
+		mask |= EPOLLIN | EPOLLRDNORM;
 
 	/* Connection-based need to check for termination and startup */
 	if ((sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) &&
···
 
 	/* readable? */
 	if (!skb_queue_empty_lockless(&sk->sk_receive_queue))
+		mask |= EPOLLIN | EPOLLRDNORM;
+	if (sk_is_readable(sk))
 		mask |= EPOLLIN | EPOLLRDNORM;
 
 	/* Connection-based need to check for termination and startup */

net/unix/unix_bpf.c

···
 	*prot        = *base;
 	prot->close  = sock_map_close;
 	prot->recvmsg = unix_bpf_recvmsg;
+	prot->sock_is_readable = sk_msg_is_readable;
 }
 
 static void unix_stream_bpf_rebuild_protos(struct proto *prot,
···
 	*prot        = *base;
 	prot->close  = sock_map_close;
 	prot->recvmsg = unix_bpf_recvmsg;
+	prot->sock_is_readable = sk_msg_is_readable;
 	prot->unhash  = sock_map_unhash;
 }
 

net/wireless/core.c

···
 	INIT_WORK(&rdev->propagate_cac_done_wk, cfg80211_propagate_cac_done_wk);
 	INIT_WORK(&rdev->mgmt_registrations_update_wk,
 		  cfg80211_mgmt_registrations_update_wk);
+	spin_lock_init(&rdev->mgmt_registrations_lock);
 
 #ifdef CONFIG_CFG80211_DEFAULT_PS
 	rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
···
 	INIT_LIST_HEAD(&wdev->event_list);
 	spin_lock_init(&wdev->event_lock);
 	INIT_LIST_HEAD(&wdev->mgmt_registrations);
-	spin_lock_init(&wdev->mgmt_registrations_lock);
 	INIT_LIST_HEAD(&wdev->pmsr_list);
 	spin_lock_init(&wdev->pmsr_lock);
 	INIT_WORK(&wdev->pmsr_free_wk, cfg80211_pmsr_free_wk);

net/wireless/core.h

···
 	struct work_struct propagate_cac_done_wk;
 
 	struct work_struct mgmt_registrations_update_wk;
+	/* lock for all wdev lists */
+	spinlock_t mgmt_registrations_lock;
 
 	/* must be last because of the way we do wiphy_priv(),
 	 * and it should at least be aligned to NETDEV_ALIGN */

net/wireless/mlme.c

···
 
 	lockdep_assert_held(&rdev->wiphy.mtx);
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 	if (!wdev->mgmt_registrations_need_update) {
-		spin_unlock_bh(&wdev->mgmt_registrations_lock);
+		spin_unlock_bh(&rdev->mgmt_registrations_lock);
 		return;
 	}
 
···
 	rcu_read_unlock();
 
 	wdev->mgmt_registrations_need_update = 0;
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	rdev_update_mgmt_frame_registrations(rdev, wdev, &upd);
 }
···
 				int match_len, bool multicast_rx,
 				struct netlink_ext_ack *extack)
 {
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct cfg80211_mgmt_registration *reg, *nreg;
 	int err = 0;
 	u16 mgmt_type;
···
 	if (!nreg)
 		return -ENOMEM;
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 
 	list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
 		int mlen = min(match_len, reg->match_len);
···
 		list_add(&nreg->list, &wdev->mgmt_registrations);
 	}
 	wdev->mgmt_registrations_need_update = 1;
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	cfg80211_mgmt_registrations_update(wdev);
 
···
 
  out:
 	kfree(nreg);
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	return err;
 }
···
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
 	struct cfg80211_mgmt_registration *reg, *tmp;
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 
 	list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
 		if (reg->nlportid != nlportid)
···
 		schedule_work(&rdev->mgmt_registrations_update_wk);
 	}
 
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	if (nlportid && rdev->crit_proto_nlportid == nlportid) {
 		rdev->crit_proto_nlportid = 0;
···
 
 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
 {
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct cfg80211_mgmt_registration *reg, *tmp;
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 	list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
 		list_del(&reg->list);
 		kfree(reg);
 	}
 	wdev->mgmt_registrations_need_update = 1;
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	cfg80211_mgmt_registrations_update(wdev);
 }
···
 	data = buf + ieee80211_hdrlen(mgmt->frame_control);
 	data_len = len - ieee80211_hdrlen(mgmt->frame_control);
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 
 	list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
 		if (reg->frame_type != ftype)
···
 		break;
 	}
 
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	trace_cfg80211_return_bool(result);
 	return result;

net/wireless/scan.c

···
 	}
 	ssid_len = ssid[1];
 	ssid = ssid + 2;
-	rcu_read_unlock();
 
 	/* check if nontrans_bss is in the list */
 	list_for_each_entry(bss, &trans_bss->nontrans_list, nontrans_list) {
-		if (is_bss(bss, nontrans_bss->bssid, ssid, ssid_len))
+		if (is_bss(bss, nontrans_bss->bssid, ssid, ssid_len)) {
+			rcu_read_unlock();
 			return 0;
+		}
 	}
+
+	rcu_read_unlock();
 
 	/* add to the list */
 	list_add_tail(&nontrans_bss->nontrans_list, &trans_bss->nontrans_list);

net/wireless/util.c

···
 	    !(rdev->wiphy.interface_modes & (1 << ntype)))
 		return -EOPNOTSUPP;
 
-	/* if it's part of a bridge, reject changing type to station/ibss */
-	if (netif_is_bridge_port(dev) &&
-	    (ntype == NL80211_IFTYPE_ADHOC ||
-	     ntype == NL80211_IFTYPE_STATION ||
-	     ntype == NL80211_IFTYPE_P2P_CLIENT))
-		return -EBUSY;
-
 	if (ntype != otype) {
+		/* if it's part of a bridge, reject changing type to station/ibss */
+		if (netif_is_bridge_port(dev) &&
+		    (ntype == NL80211_IFTYPE_ADHOC ||
+		     ntype == NL80211_IFTYPE_STATION ||
+		     ntype == NL80211_IFTYPE_P2P_CLIENT))
+			return -EBUSY;
+
 		dev->ieee80211_ptr->use_4addr = false;
 		dev->ieee80211_ptr->mesh_id_up_len = 0;
 		wdev_lock(dev->ieee80211_ptr);

tools/testing/selftests/bpf/prog_tests/sockmap_listen.c

···
 	int err, n;
 	u32 key;
 	char b;
-	int retries = 100;
 
 	zero_verdict_count(verd_mapfd);
 
···
 		goto close_peer1;
 	if (pass != 1)
 		FAIL("%s: want pass count 1, have %d", log_prefix, pass);
-again:
-	n = read(c0, &b, 1);
-	if (n < 0) {
-		if (errno == EAGAIN && retries--) {
-			usleep(1000);
-			goto again;
-		}
-		FAIL_ERRNO("%s: read", log_prefix);
-	}
+	n = recv_timeout(c0, &b, 1, 0, IO_TIMEOUT_SEC);
+	if (n < 0)
+		FAIL_ERRNO("%s: recv_timeout", log_prefix);
 	if (n == 0)
-		FAIL("%s: incomplete read", log_prefix);
+		FAIL("%s: incomplete recv", log_prefix);
 
 close_peer1:
 	xclose(p1);
···
 	const char *log_prefix = redir_mode_str(mode);
 	int c0, c1, p0, p1;
 	unsigned int pass;
-	int retries = 100;
 	int err, n;
 	int sfd[2];
 	u32 key;
···
 	if (pass != 1)
 		FAIL("%s: want pass count 1, have %d", log_prefix, pass);
 
-again:
-	n = read(mode == REDIR_INGRESS ? p0 : c0, &b, 1);
-	if (n < 0) {
-		if (errno == EAGAIN && retries--) {
-			usleep(1000);
-			goto again;
-		}
-		FAIL_ERRNO("%s: read", log_prefix);
-	}
+	n = recv_timeout(mode == REDIR_INGRESS ? p0 : c0, &b, 1, 0, IO_TIMEOUT_SEC);
+	if (n < 0)
+		FAIL_ERRNO("%s: recv_timeout", log_prefix);
 	if (n == 0)
-		FAIL("%s: incomplete read", log_prefix);
+		FAIL("%s: incomplete recv", log_prefix);
 
 close:
 	xclose(c1);
···
 	const char *log_prefix = redir_mode_str(mode);
 	int c0, c1, p0, p1;
 	unsigned int pass;
-	int retries = 100;
 	int err, n;
 	u32 key;
 	char b;
···
 	if (pass != 1)
 		FAIL("%s: want pass count 1, have %d", log_prefix, pass);
 
-again:
-	n = read(mode == REDIR_INGRESS ? p0 : c0, &b, 1);
-	if (n < 0) {
-		if (errno == EAGAIN && retries--) {
-			usleep(1000);
-			goto again;
-		}
-		FAIL_ERRNO("%s: read", log_prefix);
-	}
+	n = recv_timeout(mode == REDIR_INGRESS ? p0 : c0, &b, 1, 0, IO_TIMEOUT_SEC);
+	if (n < 0)
+		FAIL_ERRNO("%s: recv_timeout", log_prefix);
 	if (n == 0)
-		FAIL("%s: incomplete read", log_prefix);
+		FAIL("%s: incomplete recv", log_prefix);
 
 close_cli1:
 	xclose(c1);
···
 	const char *log_prefix = redir_mode_str(mode);
 	int c0, c1, p0, p1;
 	unsigned int pass;
-	int retries = 100;
 	int err, n;
 	int sfd[2];
 	u32 key;
···
 	if (pass != 1)
 		FAIL("%s: want pass count 1, have %d", log_prefix, pass);
 
-again:
-	n = read(mode == REDIR_INGRESS ? p0 : c0, &b, 1);
-	if (n < 0) {
-		if (errno == EAGAIN && retries--) {
-			usleep(1000);
-			goto again;
-		}
-		FAIL_ERRNO("%s: read", log_prefix);
-	}
+	n = recv_timeout(mode == REDIR_INGRESS ? p0 : c0, &b, 1, 0, IO_TIMEOUT_SEC);
+	if (n < 0)
+		FAIL_ERRNO("%s: recv_timeout", log_prefix);
 	if (n == 0)
-		FAIL("%s: incomplete read", log_prefix);
+		FAIL("%s: incomplete recv", log_prefix);
 
 close_cli1:
 	xclose(c1);
···
 	int sfd[2];
 	u32 key;
 	char b;
-	int retries = 100;
 
 	zero_verdict_count(verd_mapfd);
 
···
 	if (pass != 1)
 		FAIL("%s: want pass count 1, have %d", log_prefix, pass);
 
-again:
-	n = read(mode == REDIR_INGRESS ? p0 : c0, &b, 1);
-	if (n < 0) {
-		if (errno == EAGAIN && retries--) {
-			usleep(1000);
-			goto again;
-		}
-		FAIL_ERRNO("%s: read", log_prefix);
-	}
+	n = recv_timeout(mode == REDIR_INGRESS ? p0 : c0, &b, 1, 0, IO_TIMEOUT_SEC);
+	if (n < 0)
+		FAIL_ERRNO("%s: recv_timeout", log_prefix);
 	if (n == 0)
-		FAIL("%s: incomplete read", log_prefix);
+		FAIL("%s: incomplete recv", log_prefix);
 
 close:
 	xclose(c1);

tools/testing/selftests/net/fcnal-test.sh

···
 		ip -netns ${NSA} link set dev ${NSA_DEV} down
 		ip -netns ${NSA} link del dev ${NSA_DEV}
 
+		ip netns pids ${NSA} | xargs kill 2>/dev/null
 		ip netns del ${NSA}
 	fi
 
+	ip netns pids ${NSB} | xargs kill 2>/dev/null
 	ip netns del ${NSB}
+	ip netns pids ${NSC} | xargs kill 2>/dev/null
 	ip netns del ${NSC} >/dev/null 2>&1
 }