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

Cross-merge networking fixes after downstream PR (net-6.16-rc6).

No conflicts.

Adjacent changes:

Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
0a12c435a1d6 ("dt-bindings: net: sun8i-emac: Add A100 EMAC compatible")
b3603c0466a8 ("dt-bindings: net: sun8i-emac: Rename A523 EMAC0 to GMAC0")

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

Documentation/ABI/testing/sysfs-devices-power

···
 Contact:	Rafael J. Wysocki <[e-mail]>
 Description:
 		The /sys/devices/.../async attribute allows the user space to
-		enable or diasble the device's suspend and resume callbacks to
+		enable or disable the device's suspend and resume callbacks to
 		be executed asynchronously (ie. in separate threads, in parallel
 		with the main suspend/resume thread) during system-wide power
 		transitions (eg. suspend to RAM, hibernation).

Documentation/ABI/testing/sysfs-devices-system-cpu

···
 		/sys/devices/system/cpu/vulnerabilities/spectre_v1
 		/sys/devices/system/cpu/vulnerabilities/spectre_v2
 		/sys/devices/system/cpu/vulnerabilities/srbds
+		/sys/devices/system/cpu/vulnerabilities/tsa
 		/sys/devices/system/cpu/vulnerabilities/tsx_async_abort
 Date:		January 2018
 Contact:	Linux kernel mailing list <[e-mail]>

Documentation/ABI/testing/sysfs-driver-ufs

···
 
 		The file is read only.
 
-What:		/sys/class/scsi_device/*/device/unit_descriptor/physical_memory_resourse_count
+What:		/sys/class/scsi_device/*/device/unit_descriptor/physical_memory_resource_count
 Date:		February 2018
 Contact:	Stanislav Nijnikov <[e-mail]>
 Description:	This file shows the total physical memory resources. This is

Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst

···
 combination with a microcode update. The microcode clears the affected CPU
 buffers when the VERW instruction is executed.
 
-Kernel reuses the MDS function to invoke the buffer clearing:
-
-	mds_clear_cpu_buffers()
+Kernel does the buffer clearing with x86_clear_cpu_buffers().
 
 On MDS affected CPUs, the kernel already invokes CPU buffer clear on
 kernel/userspace, hypervisor/guest and C-state (idle) transitions. No

Documentation/admin-guide/kernel-parameters.txt

···
 			having this key zero'ed is acceptable. E.g. in testing
 			scenarios.
 
+	tsa=		[X86] Control mitigation for Transient Scheduler
+			Attacks on AMD CPUs. Search the following in your
+			favourite search engine for more details:
+
+			"Technical guidance for mitigating transient scheduler
+			attacks".
+
+			off		- disable the mitigation
+			on		- enable the mitigation (default)
+			user		- mitigate only user/kernel transitions
+			vm		- mitigate only guest/host transitions
+
+
 	tsc=		Disable clocksource stability checks for TSC.
 			Format: <string>
 			[x86] reliable: mark tsc clocksource as reliable, this

Documentation/arch/x86/mds.rst

···
 
 The kernel provides a function to invoke the buffer clearing:
 
-    mds_clear_cpu_buffers()
+    x86_clear_cpu_buffers()
 
 Also macro CLEAR_CPU_BUFFERS can be used in ASM late in exit-to-user path.
 Other than CFLAGS.ZF, this macro doesn't clobber any registers.
···
    idle clearing would be a window dressing exercise and is therefore not
    activated.
 
-   The invocation is controlled by the static key mds_idle_clear which is
-   switched depending on the chosen mitigation mode and the SMT state of
-   the system.
+   The invocation is controlled by the static key cpu_buf_idle_clear which is
+   switched depending on the chosen mitigation mode and the SMT state of the
+   system.
 
    The buffer clear is only invoked before entering the C-State to prevent
    that stale data from the idling CPU from spilling to the Hyper-Thread

Documentation/devicetree/bindings/i2c/realtek,rtl9301-i2c.yaml

···
       - const: realtek,rtl9301-i2c
 
   reg:
-    description: Register offset and size this I2C controller.
+    items:
+      - description: Register offset and size this I2C controller.
 
   "#address-cells":
     const: 1

Documentation/devicetree/bindings/input/elan,ekth6915.yaml

···
 $id: http://devicetree.org/schemas/input/elan,ekth6915.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Elan eKTH6915 touchscreen controller
+title: Elan I2C-HID touchscreen controllers
 
 maintainers:
   - Douglas Anderson <[e-mail]>
 
 description:
-  Supports the Elan eKTH6915 touchscreen controller.
-  This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
+  Supports the Elan eKTH6915 and other I2C-HID touchscreen controllers.
+  These touchscreen controller use the i2c-hid protocol with a reset GPIO.
 
 allOf:
   - $ref: /schemas/input/touchscreen/touchscreen.yaml#
···
           - enum:
               - elan,ekth5015m
           - const: elan,ekth6915
+      - items:
+          - const: elan,ekth8d18
+          - const: elan,ekth6a12nay
       - enum:
           - elan,ekth6915
           - elan,ekth6a12nay
 
-  reg:
-    const: 0x10
+  reg: true
 
   interrupts:
     maxItems: 1

Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml

···
               - allwinner,sun50i-a100-emac
               - allwinner,sun50i-h6-emac
               - allwinner,sun50i-h616-emac0
-              - allwinner,sun55i-a523-emac0
+              - allwinner,sun55i-a523-gmac0
           - const: allwinner,sun50i-a64-emac
 
   reg:

Documentation/virt/kvm/api.rst

···
 					u64 leaf;
 					u64 r11, r12, r13, r14;
 				} get_tdvmcall_info;
+				struct {
+					u64 ret;
+					u64 vector;
+				} setup_event_notify;
 			};
 		} tdx;
 
···
 inputs and outputs of the TDVMCALL.  Currently the following values of
 ``nr`` are defined:
 
-* ``TDVMCALL_GET_QUOTE``: the guest has requested to generate a TD-Quote
-signed by a service hosting TD-Quoting Enclave operating on the host.
-Parameters and return value are in the ``get_quote`` field of the union.
-The ``gpa`` field and ``size`` specify the guest physical address
-(without the shared bit set) and the size of a shared-memory buffer, in
-which the TDX guest passes a TD Report.  The ``ret`` field represents
-the return value of the GetQuote request.  When the request has been
-queued successfully, the TDX guest can poll the status field in the
-shared-memory area to check whether the Quote generation is completed or
-not. When completed, the generated Quote is returned via the same buffer.
+ * ``TDVMCALL_GET_QUOTE``: the guest has requested to generate a TD-Quote
+   signed by a service hosting TD-Quoting Enclave operating on the host.
+   Parameters and return value are in the ``get_quote`` field of the union.
+   The ``gpa`` field and ``size`` specify the guest physical address
+   (without the shared bit set) and the size of a shared-memory buffer, in
+   which the TDX guest passes a TD Report.  The ``ret`` field represents
+   the return value of the GetQuote request.  When the request has been
+   queued successfully, the TDX guest can poll the status field in the
+   shared-memory area to check whether the Quote generation is completed or
+   not. When completed, the generated Quote is returned via the same buffer.
 
-* ``TDVMCALL_GET_TD_VM_CALL_INFO``: the guest has requested the support
-status of TDVMCALLs.  The output values for the given leaf should be
-placed in fields from ``r11`` to ``r14`` of the ``get_tdvmcall_info``
-field of the union.
+ * ``TDVMCALL_GET_TD_VM_CALL_INFO``: the guest has requested the support
+   status of TDVMCALLs.  The output values for the given leaf should be
+   placed in fields from ``r11`` to ``r14`` of the ``get_tdvmcall_info``
+   field of the union.
+
+* ``TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT``: the guest has requested to
+set up a notification interrupt for vector ``vector``.
 
 KVM may add support for more values in the future that may cause a userspace
 exit, even without calls to ``KVM_ENABLE_CAP`` or similar.  In this case,

Documentation/virt/kvm/x86/intel-tdx.rst

···
   struct kvm_tdx_capabilities {
         __u64 supported_attrs;
         __u64 supported_xfam;
-        __u64 reserved[254];
+
+        /* TDG.VP.VMCALL hypercalls executed in kernel and forwarded to
+         * userspace, respectively
+         */
+        __u64 kernel_tdvmcallinfo_1_r11;
+        __u64 user_tdvmcallinfo_1_r11;
+
+        /* TDG.VP.VMCALL instruction executions subfunctions executed in kernel
+         * and forwarded to userspace, respectively
+         */
+        __u64 kernel_tdvmcallinfo_1_r12;
+        __u64 user_tdvmcallinfo_1_r12;
+
+        __u64 reserved[250];
 
         /* Configurable CPUID bits for userspace */
         struct kvm_cpuid2 cpuid;

Documentation/wmi/acpi-interface.rst

···
 
 The WMI object flags control whether the method or notification ID is used:
 
-- 0x1: Data block usage is expensive and must be explicitly enabled/disabled.
+- 0x1: Data block is expensive to collect.
 - 0x2: Data block contains WMI methods.
 - 0x4: Data block contains ASCIZ string.
 - 0x8: Data block describes a WMI event, use notification ID instead
···
 of 0 if the WMI event should be disabled, other values will enable
 the WMI event.
 
+Those ACPI methods are always called even for WMI events not registered as
+being expensive to collect to match the behavior of the Windows driver.
+
 WCxx ACPI methods
 -----------------
-Similar to the ``WExx`` ACPI methods, except that it controls data collection
-instead of events and thus the last two characters of the ACPI method name are
-the method ID of the data block to enable/disable.
+Similar to the ``WExx`` ACPI methods, except that instead of WMI events it controls
+data collection of data blocks registered as being expensive to collect. Thus the
+last two characters of the ACPI method name are the method ID of the data block
+to enable/disable.
 
 Those ACPI methods are also called before setting data blocks to match the
-behaviour of the Windows driver.
+behavior of the Windows driver.
 
 _WED ACPI method
 ----------------

MAINTAINERS

···
 F:	include/linux/find.h
 F:	include/linux/nodemask.h
 F:	include/linux/nodemask_types.h
+F:	include/uapi/linux/bits.h
 F:	include/vdso/bits.h
 F:	lib/bitmap-str.c
 F:	lib/bitmap.c
···
 F:	tools/include/linux/bitmap.h
 F:	tools/include/linux/bits.h
 F:	tools/include/linux/find.h
+F:	tools/include/uapi/linux/bits.h
 F:	tools/include/vdso/bits.h
 F:	tools/lib/bitmap.c
 F:	tools/lib/find_bit.c
···
 MODULE SUPPORT
 M:	Luis Chamberlain <[e-mail]>
 M:	Petr Pavlu <[e-mail]>
+M:	Daniel Gomez <[e-mail]>
 R:	Sami Tolvanen <[e-mail]>
-R:	Daniel Gomez <[e-mail]>
 L:	[e-mail]
 L:	[e-mail]
 S:	Maintained
···
 F:	include/linux/mfd/ntxec.h
 
 NETRONOME ETHERNET DRIVERS
-M:	Louis Peens <[e-mail]>
 R:	Jakub Kicinski <[e-mail]>
+R:	Simon Horman <[e-mail]>
 L:	[e-mail]
-S:	Maintained
+S:	Odd Fixes
 F:	drivers/net/ethernet/netronome/
 
 NETWORK BLOCK DEVICE (NBD)
···
 F:	drivers/pinctrl/intel/
 
 PIN CONTROLLER - KEEMBAY
-M:	Lakshmi Sowjanya D <[e-mail]>
-S:	Supported
+S:	Orphan
 F:	drivers/pinctrl/pinctrl-keembay*
 
 PIN CONTROLLER - MEDIATEK
···
 F:	Documentation/devicetree/bindings/soc/qcom/qcom,apr*
 F:	Documentation/devicetree/bindings/sound/qcom,*
 F:	drivers/soc/qcom/apr.c
-F:	include/dt-bindings/sound/qcom,wcd9335.h
-F:	include/dt-bindings/sound/qcom,wcd934x.h
-F:	sound/soc/codecs/lpass-rx-macro.*
-F:	sound/soc/codecs/lpass-tx-macro.*
-F:	sound/soc/codecs/lpass-va-macro.c
-F:	sound/soc/codecs/lpass-wsa-macro.*
+F:	drivers/soundwire/qcom.c
+F:	include/dt-bindings/sound/qcom,wcd93*
+F:	sound/soc/codecs/lpass-*.*
 F:	sound/soc/codecs/msm8916-wcd-analog.c
 F:	sound/soc/codecs/msm8916-wcd-digital.c
 F:	sound/soc/codecs/wcd-clsh-v2.*
 F:	sound/soc/codecs/wcd-mbhc-v2.*
-F:	sound/soc/codecs/wcd9335.*
-F:	sound/soc/codecs/wcd934x.c
-F:	sound/soc/codecs/wsa881x.c
-F:	sound/soc/codecs/wsa883x.c
-F:	sound/soc/codecs/wsa884x.c
+F:	sound/soc/codecs/wcd93*.*
+F:	sound/soc/codecs/wsa88*.*
 F:	sound/soc/qcom/
 
 QCOM EMBEDDED USB DEBUGGER (EUD)

Makefile

···
 VERSION = 6
 PATCHLEVEL = 16
 SUBLEVEL = 0
-EXTRAVERSION = -rc4
+EXTRAVERSION = -rc5
 NAME = Baby Opossum Posse
 
 # *DOCUMENTATION*

arch/arm64/Kconfig

···
 	select HOTPLUG_SMT if HOTPLUG_CPU
 	select IRQ_DOMAIN
 	select IRQ_FORCED_THREADING
+	select JUMP_LABEL
 	select KASAN_VMALLOC if KASAN
 	select LOCK_MM_AND_FIND_VMA
 	select MODULES_USE_ELF_RELA

arch/arm64/boot/dts/apple/spi1-nvram.dtsi

···
 		compatible = "jedec,spi-nor";
 		reg = <0x0>;
 		spi-max-frequency = <25000000>;
-		#address-cells = <1>;
-		#size-cells = <1>;
 
 		partitions {
 			compatible = "fixed-partitions";

arch/arm64/boot/dts/apple/t8103-j293.dts

···
 
 &displaydfr_mipi {
 	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
 
 	dfr_panel: panel@0 {
 		compatible = "apple,j293-summit", "apple,summit";

arch/arm64/boot/dts/apple/t8103-jxxx.dtsi

···
  */
 &port00 {
 	bus-range = <1 1>;
-	wifi0: network@0,0 {
+	wifi0: wifi@0,0 {
 		compatible = "pci14e4,4425";
 		reg = <0x10000 0x0 0x0 0x0 0x0>;
 		/* To be filled by the loader */

arch/arm64/boot/dts/apple/t8103.dtsi

···
 			compatible = "apple,t8103-display-pipe-mipi", "apple,h7-display-pipe-mipi";
 			reg = <0x2 0x28600000 0x0 0x100000>;
 			power-domains = <&ps_mipi_dsi>;
-			#address-cells = <1>;
-			#size-cells = <0>;
 			status = "disabled";
 
 			ports {

arch/arm64/boot/dts/apple/t8112-j493.dts

···
 
 &displaydfr_mipi {
 	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
 
 	dfr_panel: panel@0 {
 		compatible = "apple,j493-summit", "apple,summit";

arch/arm64/boot/dts/apple/t8112.dtsi

···
 			compatible = "apple,t8112-display-pipe-mipi", "apple,h7-display-pipe-mipi";
 			reg = <0x2 0x28600000 0x0 0x100000>;
 			power-domains = <&ps_mipi_dsi>;
-			#address-cells = <1>;
-			#size-cells = <0>;
 			status = "disabled";
 
 			ports {

arch/arm64/configs/defconfig

···
 CONFIG_RESET_QCOM_PDC=m
 CONFIG_RESET_RZG2L_USBPHY_CTRL=y
 CONFIG_RESET_TI_SCI=y
+CONFIG_PHY_SNPS_EUSB2=m
 CONFIG_PHY_XGENE=y
 CONFIG_PHY_CAN_TRANSCEIVER=m
 CONFIG_PHY_NXP_PTN3222=m
···
 CONFIG_PHY_QCOM_PCIE2=m
 CONFIG_PHY_QCOM_QMP=m
 CONFIG_PHY_QCOM_QUSB2=m
-CONFIG_PHY_QCOM_SNPS_EUSB2=m
 CONFIG_PHY_QCOM_EUSB2_REPEATER=m
 CONFIG_PHY_QCOM_M31_USB=m
 CONFIG_PHY_QCOM_USB_HS=m

arch/arm64/include/asm/el2_setup.h

···
 .Lskip_fgt2_\@:
 .endm
 
-.macro __init_el2_gcs
-	mrs_s	x1, SYS_ID_AA64PFR1_EL1
-	ubfx	x1, x1, #ID_AA64PFR1_EL1_GCS_SHIFT, #4
-	cbz	x1, .Lskip_gcs_\@
-
-	/* Ensure GCS is not enabled when we start trying to do BLs */
-	msr_s	SYS_GCSCR_EL1, xzr
-	msr_s	SYS_GCSCRE0_EL1, xzr
-.Lskip_gcs_\@:
-.endm
-
 /**
  * Initialize EL2 registers to sane values. This should be called early on all
  * cores that were booted in EL2. Note that everything gets initialised as
···
 	__init_el2_cptr
 	__init_el2_fgt
 	__init_el2_fgt2
-        __init_el2_gcs
 .endm
 
 #ifndef __KVM_NVHE_HYPERVISOR__
···
 	msr_s   SYS_MPAMHCR_EL2, xzr		// clear TRAP_MPAMIDR_EL1 -> EL2
 
 .Lskip_mpam_\@:
+	check_override id_aa64pfr1, ID_AA64PFR1_EL1_GCS_SHIFT, .Linit_gcs_\@, .Lskip_gcs_\@, x1, x2
+
+.Linit_gcs_\@:
+	msr_s	SYS_GCSCR_EL1, xzr
+	msr_s	SYS_GCSCRE0_EL1, xzr
+
+.Lskip_gcs_\@:
 	check_override id_aa64pfr0, ID_AA64PFR0_EL1_SVE_SHIFT, .Linit_sve_\@, .Lskip_sve_\@, x1, x2
 
 .Linit_sve_\@:	/* SVE register access */

arch/arm64/include/asm/kvm_host.h

···
 					struct reg_mask_range *range);
 
 /* Guest/host FPSIMD coordination helpers */
-int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxflush_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxsync_fp(struct kvm_vcpu *vcpu);

arch/arm64/kernel/Makefile

···
 			   cpufeature.o alternative.o cacheinfo.o		\
 			   smp.o smp_spin_table.o topology.o smccc-call.o	\
 			   syscall.o proton-pack.o idle.o patching.o pi/	\
-			   rsi.o
+			   rsi.o jump_label.o
 
 obj-$(CONFIG_COMPAT)			+= sys32.o signal32.o			\
 					   sys_compat.o
···
 obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF)	+= watchdog_hld.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)	+= hw_breakpoint.o
 obj-$(CONFIG_CPU_PM)			+= sleep.o suspend.o
-obj-$(CONFIG_JUMP_LABEL)		+= jump_label.o
 obj-$(CONFIG_KGDB)			+= kgdb.o
 obj-$(CONFIG_EFI)			+= efi.o efi-rt-wrapper.o
 obj-$(CONFIG_PCI)			+= pci.o

arch/arm64/kernel/cpufeature.c

···
 }
 #endif
 
+#ifdef CONFIG_ARM64_SME
+static bool has_sme_feature(const struct arm64_cpu_capabilities *cap, int scope)
+{
+	return system_supports_sme() && has_user_cpuid_feature(cap, scope);
+}
+#endif
+
 static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 	HWCAP_CAP(ID_AA64ISAR0_EL1, AES, PMULL, CAP_HWCAP, KERNEL_HWCAP_PMULL),
 	HWCAP_CAP(ID_AA64ISAR0_EL1, AES, AES, CAP_HWCAP, KERNEL_HWCAP_AES),
···
 	HWCAP_CAP(ID_AA64ISAR2_EL1, BC, IMP, CAP_HWCAP, KERNEL_HWCAP_HBC),
 #ifdef CONFIG_ARM64_SME
 	HWCAP_CAP(ID_AA64PFR1_EL1, SME, IMP, CAP_HWCAP, KERNEL_HWCAP_SME),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, FA64, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_FA64),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, LUTv2, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_LUTV2),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SMEver, SME2p2, CAP_HWCAP, KERNEL_HWCAP_SME2P2),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SMEver, SME2p1, CAP_HWCAP, KERNEL_HWCAP_SME2P1),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SMEver, SME2, CAP_HWCAP, KERNEL_HWCAP_SME2),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, I16I64, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_I16I64),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, F64F64, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F64F64),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, I16I32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_I16I32),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, B16B16, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_B16B16),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, F16F16, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F16F16),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, F8F16, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F8F16),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, F8F32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F8F32),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, I8I32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_I8I32),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, F16F32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F16F32),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, B16F32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_B16F32),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, BI32I32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_BI32I32),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, F32F32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F32F32),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SF8FMA, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SF8FMA),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SF8DP4, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SF8DP4),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SF8DP2, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SF8DP2),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SBitPerm, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SBITPERM),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, AES, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_AES),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SFEXPA, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SFEXPA),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, STMOP, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_STMOP),
-	HWCAP_CAP(ID_AA64SMFR0_EL1, SMOP4, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SMOP4),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, FA64, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_FA64),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, LUTv2, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_LUTV2),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SMEver, SME2p2, CAP_HWCAP, KERNEL_HWCAP_SME2P2),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SMEver, SME2p1, CAP_HWCAP, KERNEL_HWCAP_SME2P1),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SMEver, SME2, CAP_HWCAP, KERNEL_HWCAP_SME2),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, I16I64, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_I16I64),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, F64F64, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F64F64),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, I16I32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_I16I32),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, B16B16, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_B16B16),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, F16F16, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F16F16),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, F8F16, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F8F16),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, F8F32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F8F32),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, I8I32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_I8I32),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, F16F32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F16F32),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, B16F32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_B16F32),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, BI32I32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_BI32I32),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, F32F32, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_F32F32),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SF8FMA, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SF8FMA),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SF8DP4, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SF8DP4),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SF8DP2, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SF8DP2),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SBitPerm, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SBITPERM),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, AES, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_AES),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SFEXPA, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SFEXPA),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, STMOP, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_STMOP),
+	HWCAP_CAP_MATCH_ID(has_sme_feature, ID_AA64SMFR0_EL1, SMOP4, IMP, CAP_HWCAP, KERNEL_HWCAP_SME_SMOP4),
 #endif /* CONFIG_ARM64_SME */
 	HWCAP_CAP(ID_AA64FPFR0_EL1, F8CVT, IMP, CAP_HWCAP, KERNEL_HWCAP_F8CVT),
 	HWCAP_CAP(ID_AA64FPFR0_EL1, F8FMA, IMP, CAP_HWCAP, KERNEL_HWCAP_F8FMA),

arch/arm64/kernel/efi.c

···
 
 #include <asm/efi.h>
 #include <asm/stacktrace.h>
+#include <asm/vmap_stack.h>
 
 static bool region_is_misaligned(const efi_memory_desc_t *md)
 {
···
 	if (!efi_enabled(EFI_RUNTIME_SERVICES))
 		return 0;
 
-	p = __vmalloc_node(THREAD_SIZE, THREAD_ALIGN, GFP_KERNEL,
-			   NUMA_NO_NODE, &&l);
-l:	if (!p) {
+	if (!IS_ENABLED(CONFIG_VMAP_STACK)) {
+		clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
+		return -ENOMEM;
+	}
+
+	p = arch_alloc_vmap_stack(THREAD_SIZE, NUMA_NO_NODE);
+	if (!p) {
 		pr_warn("Failed to allocate EFI runtime stack\n");
 		clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
 		return -ENOMEM;

arch/arm64/kernel/process.c

···
 	current->thread.por_el0 = read_sysreg_s(SYS_POR_EL0);
 	if (current->thread.por_el0 != next->thread.por_el0) {
 		write_sysreg_s(next->thread.por_el0, SYS_POR_EL0);
+		/*
+		 * No ISB required as we can tolerate spurious Overlay faults -
+		 * the fault handler will check again based on the new value
+		 * of POR_EL0.
+		 */
 	}
 }
 

arch/arm64/kernel/smp.c

···
 void smp_send_stop(void)
 {
 	static unsigned long stop_in_progress;
-	cpumask_t mask;
+	static cpumask_t mask;
 	unsigned long timeout;
 
 	/*

arch/arm64/kvm/arm.c

···
 	if (!kvm_arm_vcpu_is_finalized(vcpu))
 		return -EPERM;
 
-	ret = kvm_arch_vcpu_run_map_fp(vcpu);
-	if (ret)
-		return ret;
-
 	if (likely(vcpu_has_run_once(vcpu)))
 		return 0;
 
···
 
 static void cpu_hyp_uninit(void *discard)
 {
-	if (__this_cpu_read(kvm_hyp_initialized)) {
+	if (!is_protected_kvm_enabled() && __this_cpu_read(kvm_hyp_initialized)) {
 		cpu_hyp_reset();
 		__this_cpu_write(kvm_hyp_initialized, 0);
 	}
···
 
 	free_hyp_pgds();
 	for_each_possible_cpu(cpu) {
+		if (per_cpu(kvm_hyp_initialized, cpu))
+			continue;
+
 		free_pages(per_cpu(kvm_arm_hyp_stack_base, cpu), NVHE_STACK_SHIFT - PAGE_SHIFT);
-		free_pages(kvm_nvhe_sym(kvm_arm_hyp_percpu_base)[cpu], nvhe_percpu_order());
+
+		if (!kvm_nvhe_sym(kvm_arm_hyp_percpu_base)[cpu])
+			continue;
 
 		if (free_sve) {
 			struct cpu_sve_state *sve_state;
···
 			sve_state = per_cpu_ptr_nvhe_sym(kvm_host_data, cpu)->sve_state;
 			free_pages((unsigned long) sve_state, pkvm_host_sve_state_order());
 		}
+
+		free_pages(kvm_nvhe_sym(kvm_arm_hyp_percpu_base)[cpu], nvhe_percpu_order());
+
 	}
 }
 

arch/arm64/kvm/fpsimd.c

···
 #include <asm/sysreg.h>
 
 /*
- * Called on entry to KVM_RUN unless this vcpu previously ran at least
- * once and the most recent prior KVM_RUN for this vcpu was called from
- * the same task as current (highly likely).
- *
- * This is guaranteed to execute before kvm_arch_vcpu_load_fp(vcpu),
- * such that on entering hyp the relevant parts of current are already
- * mapped.
- */
-int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
-{
-	struct user_fpsimd_state *fpsimd = &current->thread.uw.fpsimd_state;
-	int ret;
-
-	/* pKVM has its own tracking of the host fpsimd state. */
-	if (is_protected_kvm_enabled())
-		return 0;
-
-	/* Make sure the host task fpsimd state is visible to hyp: */
-	ret = kvm_share_hyp(fpsimd, fpsimd + 1);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-/*
  * Prepare vcpu for saving the host's FPSIMD state and loading the guest's.
  * The actual loading is done by the FPSIMD access trap taken to hyp.
  *

arch/arm64/kvm/hyp/nvhe/mem_protect.c

···
 {
 	struct kvm_mem_range cur;
 	kvm_pte_t pte;
+	u64 granule;
 	s8 level;
 	int ret;
 
···
 		return -EPERM;
 	}
 
-	do {
-		u64 granule = kvm_granule_size(level);
+	for (; level <= KVM_PGTABLE_LAST_LEVEL; level++) {
+		if (!kvm_level_supports_block_mapping(level))
+			continue;
+		granule = kvm_granule_size(level);
 		cur.start = ALIGN_DOWN(addr, granule);
 		cur.end = cur.start + granule;
-		level++;
-	} while ((level <= KVM_PGTABLE_LAST_LEVEL) &&
-			!(kvm_level_supports_block_mapping(level) &&
-			  range_included(&cur, range)));
+		if (!range_included(&cur, range))
+			continue;
+		*range = cur;
+		return 0;
+	}
 
-	*range = cur;
+	WARN_ON(1);
 
-	return 0;
+	return -EINVAL;
 }
 
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size,

arch/arm64/kvm/nested.c

···
 	}
 }
 
+#define has_tgran_2(__r, __sz)						\
+	({								\
+		u64 _s1, _s2, _mmfr0 = __r;				\
+									\
+		_s2 = SYS_FIELD_GET(ID_AA64MMFR0_EL1,			\
+				    TGRAN##__sz##_2, _mmfr0);		\
+									\
+		_s1 = SYS_FIELD_GET(ID_AA64MMFR0_EL1,			\
+				    TGRAN##__sz, _mmfr0);		\
+									\
+		((_s2 != ID_AA64MMFR0_EL1_TGRAN##__sz##_2_NI &&		\
+		  _s2 != ID_AA64MMFR0_EL1_TGRAN##__sz##_2_TGRAN##__sz) || \
+		 (_s2 == ID_AA64MMFR0_EL1_TGRAN##__sz##_2_TGRAN##__sz && \
+		  _s1 != ID_AA64MMFR0_EL1_TGRAN##__sz##_NI));		\
+	})
 /*
  * Our emulated CPU doesn't support all the possible features. For the
  * sake of simplicity (and probably mental sanity), wipe out a number
···
  */
 u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
 {
+	u64 orig_val = val;
+
 	switch (reg) {
 	case SYS_ID_AA64ISAR0_EL1:
 		/* Support everything but TME */
···
 		 */
 		switch (PAGE_SIZE) {
 		case SZ_4K:
-			val |= SYS_FIELD_PREP_ENUM(ID_AA64MMFR0_EL1, TGRAN4_2, IMP);
+			if (has_tgran_2(orig_val, 4))
+				val |= SYS_FIELD_PREP_ENUM(ID_AA64MMFR0_EL1, TGRAN4_2, IMP);
 			fallthrough;
 		case SZ_16K:
-			val |= SYS_FIELD_PREP_ENUM(ID_AA64MMFR0_EL1, TGRAN16_2, IMP);
+			if (has_tgran_2(orig_val, 16))
+				val |= SYS_FIELD_PREP_ENUM(ID_AA64MMFR0_EL1, TGRAN16_2, IMP);
 			fallthrough;
 		case SZ_64K:
-			val |= SYS_FIELD_PREP_ENUM(ID_AA64MMFR0_EL1, TGRAN64_2, IMP);
+			if (has_tgran_2(orig_val, 64))
+				val |= SYS_FIELD_PREP_ENUM(ID_AA64MMFR0_EL1, TGRAN64_2, IMP);
 			break;
 		}
 

arch/arm64/kvm/vgic/vgic-v3-nested.c

···
 {
 	bool level;
 
-	level  = __vcpu_sys_reg(vcpu, ICH_HCR_EL2) & ICH_HCR_EL2_En;
-	if (level)
-		level &= vgic_v3_get_misr(vcpu);
+	level = (__vcpu_sys_reg(vcpu, ICH_HCR_EL2) & ICH_HCR_EL2_En) && vgic_v3_get_misr(vcpu);
 	kvm_vgic_inject_irq(vcpu->kvm, vcpu,
 			    vcpu->kvm->arch.vgic.mi_intid, level, vcpu);
 }

arch/arm64/mm/fault.c

···
 	}
 }
 
-static bool fault_from_pkey(unsigned long esr, struct vm_area_struct *vma,
-			unsigned int mm_flags)
+static bool fault_from_pkey(struct vm_area_struct *vma, unsigned int mm_flags)
 {
-	unsigned long iss2 = ESR_ELx_ISS2(esr);
-
 	if (!system_supports_poe())
 		return false;
 
-	if (esr_fsc_is_permission_fault(esr) && (iss2 & ESR_ELx_Overlay))
-		return true;
-
+	/*
+	 * We do not check whether an Overlay fault has occurred because we
+	 * cannot make a decision based solely on its value:
+	 *
+	 * - If Overlay is set, a fault did occur due to POE, but it may be
+	 *   spurious in those cases where we update POR_EL0 without ISB (e.g.
+	 *   on context-switch). We would then need to manually check POR_EL0
+	 *   against vma_pkey(vma), which is exactly what
+	 *   arch_vma_access_permitted() does.
+	 *
+	 * - If Overlay is not set, we may still need to report a pkey fault.
+	 *   This is the case if an access was made within a mapping but with no
+	 *   page mapped, and POR_EL0 forbids the access (according to
+	 *   vma_pkey()). Such access will result in a SIGSEGV regardless
+	 *   because core code checks arch_vma_access_permitted(), but in order
+	 *   to report the correct error code - SEGV_PKUERR - we must handle
+	 *   that case here.
+	 */
 	return !arch_vma_access_permitted(vma,
 			mm_flags & FAULT_FLAG_WRITE,
 			mm_flags & FAULT_FLAG_INSTRUCTION,
···
 		goto bad_area;
 	}
 
-	if (fault_from_pkey(esr, vma, mm_flags)) {
+	if (fault_from_pkey(vma, mm_flags)) {
 		pkey = vma_pkey(vma);
 		vma_end_read(vma);
 		fault = 0;
···
 		goto bad_area;
 	}
 
-	if (fault_from_pkey(esr, vma, mm_flags)) {
+	if (fault_from_pkey(vma, mm_flags)) {
 		pkey = vma_pkey(vma);
 		mmap_read_unlock(mm);
 		fault = 0;

arch/arm64/mm/proc.S

···
 	msr	REG_PIR_EL1, x0
 
 	orr	tcr2, tcr2, TCR2_EL1_PIE
-	msr	REG_TCR2_EL1, x0
 
 .Lskip_indirection:
 

arch/riscv/Kconfig

···
 	select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
 	select ARCH_STACKWALK
 	select ARCH_SUPPORTS_ATOMIC_RMW
-	select ARCH_SUPPORTS_CFI_CLANG
+	# clang >= 17: https://github.com/llvm/llvm-project/commit/62fa708ceb027713b386c7e0efda994f8bdc27e2
+	select ARCH_SUPPORTS_CFI_CLANG if CLANG_VERSION >= 170000
 	select ARCH_SUPPORTS_DEBUG_PAGEALLOC if MMU
 	select ARCH_SUPPORTS_HUGE_PFNMAP if TRANSPARENT_HUGEPAGE
 	select ARCH_SUPPORTS_HUGETLBFS if MMU

arch/riscv/kernel/cpu_ops_sbi.c

···
 
 /*
  * Ordered booting via HSM brings one cpu at a time. However, cpu hotplug can
- * be invoked from multiple threads in parallel. Define a per cpu data
+ * be invoked from multiple threads in parallel. Define an array of boot data
  * to handle that.
  */
-static DEFINE_PER_CPU(struct sbi_hart_boot_data, boot_data);
+static struct sbi_hart_boot_data boot_data[NR_CPUS];
 
 static int sbi_hsm_hart_start(unsigned long hartid, unsigned long saddr,
 			      unsigned long priv)
···
 	unsigned long boot_addr = __pa_symbol(secondary_start_sbi);
 	unsigned long hartid = cpuid_to_hartid_map(cpuid);
 	unsigned long hsm_data;
-	struct sbi_hart_boot_data *bdata = &per_cpu(boot_data, cpuid);
+	struct sbi_hart_boot_data *bdata = &boot_data[cpuid];
 
 	/* Make sure tidle is updated */
 	smp_mb();

arch/s390/crypto/sha1_s390.c

···
 	sctx->state[4] = SHA1_H4;
 	sctx->count = 0;
 	sctx->func = CPACF_KIMD_SHA_1;
+	sctx->first_message_part = 0;
 
 	return 0;
 }
···
 	sctx->count = ictx->count;
 	memcpy(sctx->state, ictx->state, sizeof(ictx->state));
 	sctx->func = CPACF_KIMD_SHA_1;
+	sctx->first_message_part = 0;
 	return 0;
 }
 

arch/s390/crypto/sha512_s390.c

···
 	ctx->count = 0;
 	ctx->sha512.count_hi = 0;
 	ctx->func = CPACF_KIMD_SHA_512;
+	ctx->first_message_part = 0;
 
 	return 0;
 }
···
 
 	memcpy(sctx->state, ictx->state, sizeof(ictx->state));
 	sctx->func = CPACF_KIMD_SHA_512;
+	sctx->first_message_part = 0;
 	return 0;
 }
 
···
 	ctx->count = 0;
 	ctx->sha512.count_hi = 0;
 	ctx->func = CPACF_KIMD_SHA_512;
+	ctx->first_message_part = 0;
 
 	return 0;
 }

arch/x86/Kconfig

···
 	  disabled, mitigation cannot be enabled via cmdline.
 	  See <file:Documentation/admin-guide/hw-vuln/indirect-target-selection.rst>
 
+config MITIGATION_TSA
+	bool "Mitigate Transient Scheduler Attacks"
+	depends on CPU_SUP_AMD
+	default y
+	help
+	  Enable mitigation for Transient Scheduler Attacks. TSA is a hardware
+	  security vulnerability on AMD CPUs which can lead to forwarding of
+	  invalid info to subsequent instructions and thus can affect their
+	  timing and thereby cause a leakage.
 endif
 
 config ARCH_HAS_ADD_PAGES

arch/x86/coco/sev/core.c

···
  */
 static u64 snp_tsc_scale __ro_after_init;
 static u64 snp_tsc_offset __ro_after_init;
-static u64 snp_tsc_freq_khz __ro_after_init;
+static unsigned long snp_tsc_freq_khz __ro_after_init;
 
 DEFINE_PER_CPU(struct sev_es_runtime_data*, runtime_data);
 DEFINE_PER_CPU(struct sev_es_save_area *, sev_vmsa);
···
 
 void __init snp_secure_tsc_init(void)
 {
-	unsigned long long tsc_freq_mhz;
+	struct snp_secrets_page *secrets;
+	unsigned long tsc_freq_mhz;
+	void *mem;
 
 	if (!cc_platform_has(CC_ATTR_GUEST_SNP_SECURE_TSC))
 		return;
 
+	mem = early_memremap_encrypted(sev_secrets_pa, PAGE_SIZE);
+	if (!mem) {
+		pr_err("Unable to get TSC_FACTOR: failed to map the SNP secrets page.\n");
+		sev_es_terminate(SEV_TERM_SET_LINUX, GHCB_TERM_SECURE_TSC);
+	}
+
+	secrets = (__force struct snp_secrets_page *)mem;
+
 	setup_force_cpu_cap(X86_FEATURE_TSC_KNOWN_FREQ);
 	rdmsrq(MSR_AMD64_GUEST_TSC_FREQ, tsc_freq_mhz);
-	snp_tsc_freq_khz = (unsigned long)(tsc_freq_mhz * 1000);
+
+	/* Extract the GUEST TSC MHZ from BIT[17:0], rest is reserved space */
+	tsc_freq_mhz &= GENMASK_ULL(17, 0);
+
+	snp_tsc_freq_khz = SNP_SCALE_TSC_FREQ(tsc_freq_mhz * 1000, secrets->tsc_factor);
 
 	x86_platform.calibrate_cpu = securetsc_get_tsc_khz;
 	x86_platform.calibrate_tsc = securetsc_get_tsc_khz;
+
+	early_memunmap(mem, PAGE_SIZE);
 }

arch/x86/entry/entry.S

···
 
 /*
  * Define the VERW operand that is disguised as entry code so that
- * it can be referenced with KPTI enabled. This ensure VERW can be
+ * it can be referenced with KPTI enabled. This ensures VERW can be
  * used late in exit-to-user path after page tables are switched.
  */
 .pushsection .entry.text, "ax"
 
 .align L1_CACHE_BYTES, 0xcc
-SYM_CODE_START_NOALIGN(mds_verw_sel)
+SYM_CODE_START_NOALIGN(x86_verw_sel)
 	UNWIND_HINT_UNDEFINED
 	ANNOTATE_NOENDBR
 	.word __KERNEL_DS
 .align L1_CACHE_BYTES, 0xcc
-SYM_CODE_END(mds_verw_sel);
+SYM_CODE_END(x86_verw_sel);
 /* For KVM */
-EXPORT_SYMBOL_GPL(mds_verw_sel);
+EXPORT_SYMBOL_GPL(x86_verw_sel);
 
 .popsection
 

arch/x86/include/asm/cpufeatures.h

···
 #define X86_FEATURE_NO_NESTED_DATA_BP	(20*32+ 0) /* No Nested Data Breakpoints */
 #define X86_FEATURE_WRMSR_XX_BASE_NS	(20*32+ 1) /* WRMSR to {FS,GS,KERNEL_GS}_BASE is non-serializing */
 #define X86_FEATURE_LFENCE_RDTSC	(20*32+ 2) /* LFENCE always serializing / synchronizes RDTSC */
+#define X86_FEATURE_VERW_CLEAR		(20*32+ 5) /* The memory form of VERW mitigates TSA */
 #define X86_FEATURE_NULL_SEL_CLR_BASE	(20*32+ 6) /* Null Selector Clears Base */
 #define X86_FEATURE_AUTOIBRS		(20*32+ 8) /* Automatic IBRS */
 #define X86_FEATURE_NO_SMM_CTL_MSR	(20*32+ 9) /* SMM_CTL MSR is not present */
···
 #define X86_FEATURE_PREFER_YMM		(21*32+ 8) /* Avoid ZMM registers due to downclocking */
 #define X86_FEATURE_APX			(21*32+ 9) /* Advanced Performance Extensions */
 #define X86_FEATURE_INDIRECT_THUNK_ITS	(21*32+10) /* Use thunk for indirect branches in lower half of cacheline */
+#define X86_FEATURE_TSA_SQ_NO		(21*32+11) /* AMD CPU not vulnerable to TSA-SQ */
+#define X86_FEATURE_TSA_L1_NO		(21*32+12) /* AMD CPU not vulnerable to TSA-L1 */
+#define X86_FEATURE_CLEAR_CPU_BUF_VM	(21*32+13) /* Clear CPU buffers using VERW before VMRUN */
 
 /*
  * BUG word(s)
···
 #define X86_BUG_OLD_MICROCODE		X86_BUG( 1*32+ 6) /* "old_microcode" CPU has old microcode, it is surely vulnerable to something */
 #define X86_BUG_ITS			X86_BUG( 1*32+ 7) /* "its" CPU is affected by Indirect Target Selection */
 #define X86_BUG_ITS_NATIVE_ONLY		X86_BUG( 1*32+ 8) /* "its_native_only" CPU is affected by ITS, VMX is not affected */
-
+#define X86_BUG_TSA			X86_BUG( 1*32+ 9) /* "tsa" CPU is affected by Transient Scheduler Attacks */
 #endif /* _ASM_X86_CPUFEATURES_H */

arch/x86/include/asm/irqflags.h

···
 
 static __always_inline void native_safe_halt(void)
 {
-	mds_idle_clear_cpu_buffers();
+	x86_idle_clear_cpu_buffers();
 	asm volatile("sti; hlt": : :"memory");
 }
 
 static __always_inline void native_halt(void)
 {
-	mds_idle_clear_cpu_buffers();
+	x86_idle_clear_cpu_buffers();
 	asm volatile("hlt": : :"memory");
 }
 

arch/x86/include/asm/kvm_host.h

···
 
 	struct kvm_vcpu_hv_tlb_flush_fifo tlb_flush_fifo[HV_NR_TLB_FLUSH_FIFOS];
 
-	/* Preallocated buffer for handling hypercalls passing sparse vCPU set */
+	/*
+	 * Preallocated buffers for handling hypercalls that pass sparse vCPU
+	 * sets (for high vCPU counts, they're too large to comfortably fit on
+	 * the stack).
+	 */
 	u64 sparse_banks[HV_MAX_SPARSE_VCPU_BANKS];
+	DECLARE_BITMAP(vcpu_mask, KVM_MAX_VCPUS);
 
 	struct hv_vp_assist_page vp_assist_page;
 
···
 	CPUID_8000_0022_EAX,
 	CPUID_7_2_EDX,
 	CPUID_24_0_EBX,
+	CPUID_8000_0021_ECX,
 	NR_KVM_CPU_CAPS,
 
 	NKVMCAPINTS = NR_KVM_CPU_CAPS - NCAPINTS,

arch/x86/include/asm/mwait.h

···
 
 static __always_inline void __mwait(u32 eax, u32 ecx)
 {
-	mds_idle_clear_cpu_buffers();
-
 	/*
 	 * Use the instruction mnemonic with implicit operands, as the LLVM
 	 * assembler fails to assemble the mnemonic with explicit operands:
···
  */
 static __always_inline void __mwaitx(u32 eax, u32 ebx, u32 ecx)
 {
-	/* No MDS buffer clear as this is AMD/HYGON only */
+	/* No need for TSA buffer clearing on AMD */
 
 	/* "mwaitx %eax, %ebx, %ecx" */
 	asm volatile(".byte 0x0f, 0x01, 0xfb"
···
  */
 static __always_inline void __sti_mwait(u32 eax, u32 ecx)
 {
-	mds_idle_clear_cpu_buffers();
 
 	asm volatile("sti; mwait" :: "a" (eax), "c" (ecx));
 }
···
  */
 static __always_inline void mwait_idle_with_hints(u32 eax, u32 ecx)
 {
+	if (need_resched())
+		return;
+
+	x86_idle_clear_cpu_buffers();
+
 	if (static_cpu_has_bug(X86_BUG_MONITOR) || !current_set_polling_and_test()) {
 		const void *addr = &current_thread_info()->flags;
 
 		alternative_input("", "clflush (%[addr])", X86_BUG_CLFLUSH_MONITOR, [addr] "a" (addr));
 		__monitor(addr, 0, 0);
 
-		if (!need_resched()) {
-			if (ecx & 1) {
-				__mwait(eax, ecx);
-			} else {
-				__sti_mwait(eax, ecx);
-				raw_local_irq_disable();
-			}
+		if (need_resched())
+			goto out;
+
+		if (ecx & 1) {
+			__mwait(eax, ecx);
+		} else {
+			__sti_mwait(eax, ecx);
+			raw_local_irq_disable();
 		}
 	}
+
+out:
 	current_clr_polling();
 }
 

arch/x86/include/asm/nospec-branch.h

···
 .endm
 
 /*
- * Macro to execute VERW instruction that mitigate transient data sampling
- * attacks such as MDS. On affected systems a microcode update overloaded VERW
- * instruction to also clear the CPU buffers. VERW clobbers CFLAGS.ZF.
- *
+ * Macro to execute VERW insns that mitigate transient data sampling
+ * attacks such as MDS or TSA. On affected systems a microcode update
+ * overloaded VERW insns to also clear the CPU buffers. VERW clobbers
+ * CFLAGS.ZF.
  * Note: Only the memory operand variant of VERW clears the CPU buffers.
  */
-.macro CLEAR_CPU_BUFFERS
+.macro __CLEAR_CPU_BUFFERS feature
 #ifdef CONFIG_X86_64
-	ALTERNATIVE "", "verw mds_verw_sel(%rip)", X86_FEATURE_CLEAR_CPU_BUF
+	ALTERNATIVE "", "verw x86_verw_sel(%rip)", \feature
 #else
 	/*
 	 * In 32bit mode, the memory operand must be a %cs reference. The data
 	 * segments may not be usable (vm86 mode), and the stack segment may not
 	 * be flat (ESPFIX32).
 	 */
-	ALTERNATIVE "", "verw %cs:mds_verw_sel", X86_FEATURE_CLEAR_CPU_BUF
+	ALTERNATIVE "", "verw %cs:x86_verw_sel", \feature
 #endif
 .endm
+
+#define CLEAR_CPU_BUFFERS \
+	__CLEAR_CPU_BUFFERS X86_FEATURE_CLEAR_CPU_BUF
+
+#define VM_CLEAR_CPU_BUFFERS \
+	__CLEAR_CPU_BUFFERS X86_FEATURE_CLEAR_CPU_BUF_VM
 
 #ifdef CONFIG_X86_64
 .macro CLEAR_BRANCH_HISTORY
···
 
 DECLARE_STATIC_KEY_FALSE(switch_vcpu_ibpb);
 
-DECLARE_STATIC_KEY_FALSE(mds_idle_clear);
+DECLARE_STATIC_KEY_FALSE(cpu_buf_idle_clear);
 
 DECLARE_STATIC_KEY_FALSE(switch_mm_cond_l1d_flush);
 
 DECLARE_STATIC_KEY_FALSE(cpu_buf_vm_clear);
 
-extern u16 mds_verw_sel;
+extern u16 x86_verw_sel;
 
 #include <asm/segment.h>
 
 /**
- * mds_clear_cpu_buffers - Mitigation for MDS and TAA vulnerability
+ * x86_clear_cpu_buffers - Buffer clearing support for different x86 CPU vulns
  *
  * This uses the otherwise unused and obsolete VERW instruction in
  * combination with microcode which triggers a CPU buffer flush when the
  * instruction is executed.
  */
-static __always_inline void mds_clear_cpu_buffers(void)
+static __always_inline void x86_clear_cpu_buffers(void)
 {
 	static const u16 ds = __KERNEL_DS;
 
···
 }
 
 /**
- * mds_idle_clear_cpu_buffers - Mitigation for MDS vulnerability
+ * x86_idle_clear_cpu_buffers - Buffer clearing support in idle for the MDS
+ * and TSA vulnerabilities.
  *
  * Clear CPU buffers if the corresponding static key is enabled
  */
-static __always_inline void mds_idle_clear_cpu_buffers(void)
+static __always_inline void x86_idle_clear_cpu_buffers(void)
 {
-	if (static_branch_likely(&mds_idle_clear))
-		mds_clear_cpu_buffers();
+	if (static_branch_likely(&cpu_buf_idle_clear))
+		x86_clear_cpu_buffers();
 }
 
 #endif /* __ASSEMBLER__ */

arch/x86/include/asm/sev.h

···
 	u8 rsvd2[100];
 } __packed;
 
+/*
+ * Obtain the mean TSC frequency by decreasing the nominal TSC frequency with
+ * TSC_FACTOR as documented in the SNP Firmware ABI specification:
+ *
+ * GUEST_TSC_FREQ * (1 - (TSC_FACTOR * 0.00001))
+ *
+ * which is equivalent to:
+ *
+ * GUEST_TSC_FREQ -= (GUEST_TSC_FREQ * TSC_FACTOR) / 100000;
+ */
+#define SNP_SCALE_TSC_FREQ(freq, factor) ((freq) - (freq) * (factor) / 100000)
+
 struct snp_guest_req {
 	void *req_buf;
 	size_t req_sz;
···
 	u8 svsm_guest_vmpl;
 	u8 rsvd3[3];
 
+	/* The percentage decrease from nominal to mean TSC frequency. */
+	u32 tsc_factor;
+
 	/* Remainder of page */
-	u8 rsvd4[3744];
+	u8 rsvd4[3740];
 } __packed;
 
 struct snp_msg_desc {

arch/x86/include/asm/shared/tdx.h

···
 #define TDVMCALL_MAP_GPA		0x10001
 #define TDVMCALL_GET_QUOTE		0x10002
 #define TDVMCALL_REPORT_FATAL_ERROR	0x10003
+#define TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT 0x10004ULL
 
 /*
  * TDG.VP.VMCALL Status Codes (returned in R10)

arch/x86/include/uapi/asm/kvm.h

···
 struct kvm_tdx_capabilities {
 	__u64 supported_attrs;
 	__u64 supported_xfam;
-	__u64 reserved[254];
+
+	__u64 kernel_tdvmcallinfo_1_r11;
+	__u64 user_tdvmcallinfo_1_r11;
+	__u64 kernel_tdvmcallinfo_1_r12;
+	__u64 user_tdvmcallinfo_1_r12;
+
+	__u64 reserved[250];
 
 	/* Configurable CPUID bits for userspace */
 	struct kvm_cpuid2 cpuid;

arch/x86/kernel/cpu/amd.c

···
 #include <linux/sched/clock.h>
 #include <linux/random.h>
 #include <linux/topology.h>
-#include <asm/amd/fch.h>
+#include <linux/platform_data/x86/amd-fch.h>
 #include <asm/processor.h>
 #include <asm/apic.h>
 #include <asm/cacheinfo.h>
···
 #endif
 }
 
+#define ZEN_MODEL_STEP_UCODE(fam, model, step, ucode) \
+	X86_MATCH_VFM_STEPS(VFM_MAKE(X86_VENDOR_AMD, fam, model), \
+			    step, step, ucode)
+
+static const struct x86_cpu_id amd_tsa_microcode[] = {
+	ZEN_MODEL_STEP_UCODE(0x19, 0x01, 0x1, 0x0a0011d7),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x01, 0x2, 0x0a00123b),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x08, 0x2, 0x0a00820d),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x11, 0x1, 0x0a10114c),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x11, 0x2, 0x0a10124c),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x18, 0x1, 0x0a108109),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x21, 0x0, 0x0a20102e),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x21, 0x2, 0x0a201211),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x44, 0x1, 0x0a404108),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x50, 0x0, 0x0a500012),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x61, 0x2, 0x0a60120a),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x74, 0x1, 0x0a704108),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x75, 0x2, 0x0a705208),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x78, 0x0, 0x0a708008),
+	ZEN_MODEL_STEP_UCODE(0x19, 0x7c, 0x0, 0x0a70c008),
+	ZEN_MODEL_STEP_UCODE(0x19, 0xa0, 0x2, 0x0aa00216),
+	{},
+};
+
+static void tsa_init(struct cpuinfo_x86 *c)
+{
+	if (cpu_has(c, X86_FEATURE_HYPERVISOR))
+		return;
+
+	if (cpu_has(c, X86_FEATURE_ZEN3) ||
+	    cpu_has(c, X86_FEATURE_ZEN4)) {
+		if (x86_match_min_microcode_rev(amd_tsa_microcode))
+			setup_force_cpu_cap(X86_FEATURE_VERW_CLEAR);
+		else
+			pr_debug("%s: current revision: 0x%x\n", __func__, c->microcode);
+	} else {
+		setup_force_cpu_cap(X86_FEATURE_TSA_SQ_NO);
+		setup_force_cpu_cap(X86_FEATURE_TSA_L1_NO);
+	}
+}
+
 static void bsp_init_amd(struct cpuinfo_x86 *c)
 {
 	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
···
 	}
 
 	bsp_determine_snp(c);
+
+	tsa_init(c);
+
 	return;
 
 warn:

arch/x86/kernel/cpu/bugs.c

···
 static void __init its_select_mitigation(void);
 static void __init its_update_mitigation(void);
 static void __init its_apply_mitigation(void);
+static void __init tsa_select_mitigation(void);
+static void __init tsa_apply_mitigation(void);
 
 /* The base value of the SPEC_CTRL MSR without task-specific bits set */
 u64 x86_spec_ctrl_base;
···
 DEFINE_STATIC_KEY_FALSE(switch_vcpu_ibpb);
 EXPORT_SYMBOL_GPL(switch_vcpu_ibpb);
 
-/* Control MDS CPU buffer clear before idling (halt, mwait) */
-DEFINE_STATIC_KEY_FALSE(mds_idle_clear);
-EXPORT_SYMBOL_GPL(mds_idle_clear);
+/* Control CPU buffer clear before idling (halt, mwait) */
+DEFINE_STATIC_KEY_FALSE(cpu_buf_idle_clear);
+EXPORT_SYMBOL_GPL(cpu_buf_idle_clear);
 
 /*
  * Controls whether l1d flush based mitigations are enabled,
···
 	gds_select_mitigation();
 	its_select_mitigation();
 	bhi_select_mitigation();
+	tsa_select_mitigation();
 
 	/*
 	 * After mitigations are selected, some may need to update their
···
 	gds_apply_mitigation();
 	its_apply_mitigation();
 	bhi_apply_mitigation();
+	tsa_apply_mitigation();
 }
 
 /*
···
 	 * is required irrespective of SMT state.
 	 */
 	if (!(x86_arch_cap_msr & ARCH_CAP_FBSDP_NO))
-		static_branch_enable(&mds_idle_clear);
+		static_branch_enable(&cpu_buf_idle_clear);
 
 	if (mmio_nosmt || cpu_mitigations_auto_nosmt())
 		cpu_smt_disable(false);
···
 }
 
 #undef pr_fmt
+#define pr_fmt(fmt)	"Transient Scheduler Attacks: " fmt
+
+enum tsa_mitigations {
+	TSA_MITIGATION_NONE,
+	TSA_MITIGATION_AUTO,
+	TSA_MITIGATION_UCODE_NEEDED,
+	TSA_MITIGATION_USER_KERNEL,
+	TSA_MITIGATION_VM,
+	TSA_MITIGATION_FULL,
+};
+
+static const char * const tsa_strings[] = {
+	[TSA_MITIGATION_NONE]		= "Vulnerable",
+	[TSA_MITIGATION_UCODE_NEEDED]	= "Vulnerable: No microcode",
+	[TSA_MITIGATION_USER_KERNEL]	= "Mitigation: Clear CPU buffers: user/kernel boundary",
+	[TSA_MITIGATION_VM]		= "Mitigation: Clear CPU buffers: VM",
+	[TSA_MITIGATION_FULL]		= "Mitigation: Clear CPU buffers",
+};
+
+static enum tsa_mitigations tsa_mitigation __ro_after_init =
+	IS_ENABLED(CONFIG_MITIGATION_TSA) ? TSA_MITIGATION_AUTO : TSA_MITIGATION_NONE;
+
+static int __init tsa_parse_cmdline(char *str)
+{
+	if (!str)
+		return -EINVAL;
+
+	if (!strcmp(str, "off"))
+		tsa_mitigation = TSA_MITIGATION_NONE;
+	else if (!strcmp(str, "on"))
+		tsa_mitigation = TSA_MITIGATION_FULL;
+	else if (!strcmp(str, "user"))
+		tsa_mitigation = TSA_MITIGATION_USER_KERNEL;
+	else if (!strcmp(str, "vm"))
+		tsa_mitigation = TSA_MITIGATION_VM;
+	else
+		pr_err("Ignoring unknown tsa=%s option.\n", str);
+
+	return 0;
+}
+early_param("tsa", tsa_parse_cmdline);
+
+static void __init tsa_select_mitigation(void)
+{
+	if (cpu_mitigations_off() || !boot_cpu_has_bug(X86_BUG_TSA)) {
+		tsa_mitigation = TSA_MITIGATION_NONE;
+		return;
+	}
+
+	if (tsa_mitigation == TSA_MITIGATION_NONE)
+		return;
+
+	if (!boot_cpu_has(X86_FEATURE_VERW_CLEAR)) {
+		tsa_mitigation = TSA_MITIGATION_UCODE_NEEDED;
+		goto out;
+	}
+
+	if (tsa_mitigation == TSA_MITIGATION_AUTO)
+		tsa_mitigation = TSA_MITIGATION_FULL;
+
+	/*
+	 * No need to set verw_clear_cpu_buf_mitigation_selected - it
+	 * doesn't fit all cases here and it is not needed because this
+	 * is the only VERW-based mitigation on AMD.
+	 */
+out:
+	pr_info("%s\n", tsa_strings[tsa_mitigation]);
+}
+
+static void __init tsa_apply_mitigation(void)
+{
+	switch (tsa_mitigation) {
+	case TSA_MITIGATION_USER_KERNEL:
+		setup_force_cpu_cap(X86_FEATURE_CLEAR_CPU_BUF);
+		break;
+	case TSA_MITIGATION_VM:
+		setup_force_cpu_cap(X86_FEATURE_CLEAR_CPU_BUF_VM);
+		break;
+	case TSA_MITIGATION_FULL:
+		setup_force_cpu_cap(X86_FEATURE_CLEAR_CPU_BUF);
+		setup_force_cpu_cap(X86_FEATURE_CLEAR_CPU_BUF_VM);
+		break;
+	default:
+		break;
+	}
+}
+
+#undef pr_fmt
 #define pr_fmt(fmt)     "Spectre V2 : " fmt
 
 static enum spectre_v2_user_mitigation spectre_v2_user_stibp __ro_after_init =
···
 		return;
 
 	if (sched_smt_active()) {
-		static_branch_enable(&mds_idle_clear);
+		static_branch_enable(&cpu_buf_idle_clear);
 	} else if (mmio_mitigation == MMIO_MITIGATION_OFF ||
 		   (x86_arch_cap_msr & ARCH_CAP_FBSDP_NO)) {
-		static_branch_disable(&mds_idle_clear);
+		static_branch_disable(&cpu_buf_idle_clear);
 	}
 }
 
···
 			pr_warn_once(MMIO_MSG_SMT);
 		break;
 	case MMIO_MITIGATION_OFF:
+		break;
+	}
+
+	switch (tsa_mitigation) {
+	case TSA_MITIGATION_USER_KERNEL:
+	case TSA_MITIGATION_VM:
+	case TSA_MITIGATION_AUTO:
+	case TSA_MITIGATION_FULL:
+		/*
+		 * TSA-SQ can potentially lead to info leakage between
+		 * SMT threads.
+		 */
+		if (sched_smt_active())
+			static_branch_enable(&cpu_buf_idle_clear);
+		else
+			static_branch_disable(&cpu_buf_idle_clear);
+		break;
+	case TSA_MITIGATION_NONE:
+	case TSA_MITIGATION_UCODE_NEEDED:
 		break;
 	}
 
···
 	return sysfs_emit(buf, "%s\n", gds_strings[gds_mitigation]);
 }
 
+static ssize_t tsa_show_state(char *buf)
+{
+	return sysfs_emit(buf, "%s\n", tsa_strings[tsa_mitigation]);
+}
+
 static ssize_t cpu_show_common(struct device *dev, struct device_attribute *attr,
 			       char *buf, unsigned int bug)
 {
···
 
 	case X86_BUG_ITS:
 		return its_show_state(buf);
+
+	case X86_BUG_TSA:
+		return tsa_show_state(buf);
 
 	default:
 		break;
···
 ssize_t cpu_show_indirect_target_selection(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	return cpu_show_common(dev, attr, buf, X86_BUG_ITS);
+}
+
+ssize_t cpu_show_tsa(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return cpu_show_common(dev, attr, buf, X86_BUG_TSA);
 }
 #endif
 

arch/x86/kernel/cpu/common.c

···
 #define ITS		BIT(8)
 /* CPU is affected by Indirect Target Selection, but guest-host isolation is not affected */
 #define ITS_NATIVE_ONLY	BIT(9)
+/* CPU is affected by Transient Scheduler Attacks */
+#define TSA		BIT(10)
 
 static const struct x86_cpu_id cpu_vuln_blacklist[] __initconst = {
 	VULNBL_INTEL_STEPS(INTEL_IVYBRIDGE,	     X86_STEP_MAX,	SRBDS),
···
 	VULNBL_AMD(0x16, RETBLEED),
 	VULNBL_AMD(0x17, RETBLEED | SMT_RSB | SRSO),
 	VULNBL_HYGON(0x18, RETBLEED | SMT_RSB | SRSO),
-	VULNBL_AMD(0x19, SRSO),
+	VULNBL_AMD(0x19, SRSO | TSA),
 	VULNBL_AMD(0x1a, SRSO),
 	{}
 };
···
 		setup_force_cpu_bug(X86_BUG_ITS);
 		if (cpu_matches(cpu_vuln_blacklist, ITS_NATIVE_ONLY))
 			setup_force_cpu_bug(X86_BUG_ITS_NATIVE_ONLY);
+	}
+
+	if (c->x86_vendor == X86_VENDOR_AMD) {
+		if (!cpu_has(c, X86_FEATURE_TSA_SQ_NO) ||
+		    !cpu_has(c, X86_FEATURE_TSA_L1_NO)) {
+			if (cpu_matches(cpu_vuln_blacklist, TSA) ||
+			    /* Enable bug on Zen guests to allow for live migration. */
+			    (cpu_has(c, X86_FEATURE_HYPERVISOR) && cpu_has(c, X86_FEATURE_ZEN)))
+				setup_force_cpu_bug(X86_BUG_TSA);
+		}
 	}
 
 	if (cpu_matches(cpu_vuln_whitelist, NO_MELTDOWN))

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

···
 
 struct thresh_restart {
 	struct threshold_block	*b;
-	int			reset;
 	int			set_lvt_off;
 	int			lvt_off;
 	u16			old_limit;
···
 
 	rdmsr(tr->b->address, lo, hi);
 
-	if (tr->b->threshold_limit < (hi & THRESHOLD_MAX))
-		tr->reset = 1;	/* limit cannot be lower than err count */
-
-	if (tr->reset) {		/* reset err count and overflow bit */
-		hi =
-		    (hi & ~(MASK_ERR_COUNT_HI | MASK_OVERFLOW_HI)) |
-		    (THRESHOLD_MAX - tr->b->threshold_limit);
+	/*
+	 * Reset error count and overflow bit.
+	 * This is done during init or after handling an interrupt.
+	 */
+	if (hi & MASK_OVERFLOW_HI || tr->set_lvt_off) {
+		hi &= ~(MASK_ERR_COUNT_HI | MASK_OVERFLOW_HI);
+		hi |= THRESHOLD_MAX - tr->b->threshold_limit;
 	} else if (tr->old_limit) {	/* change limit w/o reset */
 		int new_count = (hi & THRESHOLD_MAX) +
 		    (tr->old_limit - tr->b->threshold_limit);
···
 	}
 
 	bank_type = smca_get_bank_type(cpu, bank);
-	if (bank_type >= N_SMCA_BANK_TYPES)
-		return NULL;
 
 	if (b && (bank_type == SMCA_UMC || bank_type == SMCA_UMC_V2)) {
 		if (b->block < ARRAY_SIZE(smca_umc_block_names))
 			return smca_umc_block_names[b->block];
-		return NULL;
+	}
+
+	if (b && b->block) {
+		snprintf(buf_mcatype, MAX_MCATYPE_NAME_LEN, "th_block_%u", b->block);
+		return buf_mcatype;
+	}
+
+	if (bank_type >= N_SMCA_BANK_TYPES) {
+		snprintf(buf_mcatype, MAX_MCATYPE_NAME_LEN, "th_bank_%u", bank);
+		return buf_mcatype;
 	}
 
 	if (per_cpu(smca_bank_counts, cpu)[bank_type] == 1)

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

···
 
 void (*mc_poll_banks)(void) = mc_poll_banks_default;
 
+static bool should_enable_timer(unsigned long iv)
+{
+	return !mca_cfg.ignore_ce && iv;
+}
+
 static void mce_timer_fn(struct timer_list *t)
 {
 	struct timer_list *cpu_t = this_cpu_ptr(&mce_timer);
···
 
 	if (mce_get_storm_mode()) {
 		__start_timer(t, HZ);
-	} else {
+	} else if (should_enable_timer(iv)) {
 		__this_cpu_write(mce_next_interval, iv);
 		__start_timer(t, iv);
 	}
···
 {
 	unsigned long iv = check_interval * HZ;
 
-	if (mca_cfg.ignore_ce || !iv)
-		return;
-
-	this_cpu_write(mce_next_interval, iv);
-	__start_timer(t, iv);
+	if (should_enable_timer(iv)) {
+		this_cpu_write(mce_next_interval, iv);
+		__start_timer(t, iv);
+	}
 }
 
 static void __mcheck_cpu_setup_timer(void)
···
 static int mce_cpu_online(unsigned int cpu)
 {
 	struct timer_list *t = this_cpu_ptr(&mce_timer);
-	int ret;
 
 	mce_device_create(cpu);
-
-	ret = mce_threshold_create_device(cpu);
-	if (ret) {
-		mce_device_remove(cpu);
-		return ret;
-	}
+	mce_threshold_create_device(cpu);
 	mce_reenable_cpu();
 	mce_start_timer(t);
 	return 0;

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

···
 void mce_intel_feature_clear(struct cpuinfo_x86 *c)
 {
 	intel_clear_lmce();
+	cmci_clear();
 }
 
 bool intel_filter_mce(struct mce *m)

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

···
 		0x0d,0x5b,0x65,0x34,0x69,0xb2,0x62,0x21,
 	}
  },
+ { 0xa0011d7, {
+                0x35,0x07,0xcd,0x40,0x94,0xbc,0x81,0x6b,
+                0xfc,0x61,0x56,0x1a,0xe2,0xdb,0x96,0x12,
+                0x1c,0x1c,0x31,0xb1,0x02,0x6f,0xe5,0xd2,
+                0xfe,0x1b,0x04,0x03,0x2c,0x8f,0x4c,0x36,
+        }
+ },
  { 0xa001223, {
 		0xfb,0x32,0x5f,0xc6,0x83,0x4f,0x8c,0xb8,
 		0xa4,0x05,0xf9,0x71,0x53,0x01,0x16,0xc4,
···
 		0xc0,0xcd,0x33,0xf2,0x8d,0xf9,0xef,0x59,
 	}
  },
+ { 0xa00123b, {
+		0xef,0xa1,0x1e,0x71,0xf1,0xc3,0x2c,0xe2,
+		0xc3,0xef,0x69,0x41,0x7a,0x54,0xca,0xc3,
+		0x8f,0x62,0x84,0xee,0xc2,0x39,0xd9,0x28,
+		0x95,0xa7,0x12,0x49,0x1e,0x30,0x71,0x72,
+	}
+ },
  { 0xa00820c, {
 		0xa8,0x0c,0x81,0xc0,0xa6,0x00,0xe7,0xf3,
 		0x5f,0x65,0xd3,0xb9,0x6f,0xea,0x93,0x63,
 		0xf1,0x8c,0x88,0x45,0xd7,0x82,0x80,0xd1,
 		0xe1,0x3b,0x8d,0xb2,0xf8,0x22,0x03,0xe2,
+	}
+ },
+ { 0xa00820d, {
+		0xf9,0x2a,0xc0,0xf4,0x9e,0xa4,0x87,0xa4,
+		0x7d,0x87,0x00,0xfd,0xab,0xda,0x19,0xca,
+		0x26,0x51,0x32,0xc1,0x57,0x91,0xdf,0xc1,
+		0x05,0xeb,0x01,0x7c,0x5a,0x95,0x21,0xb7,
 	}
  },
  { 0xa10113e, {
···
 		0xf1,0x5e,0xb0,0xde,0xb4,0x98,0xae,0xc4,
 	}
  },
+ { 0xa10114c, {
+		0x9e,0xb6,0xa2,0xd9,0x87,0x38,0xc5,0x64,
+		0xd8,0x88,0xfa,0x78,0x98,0xf9,0x6f,0x74,
+		0x39,0x90,0x1b,0xa5,0xcf,0x5e,0xb4,0x2a,
+		0x02,0xff,0xd4,0x8c,0x71,0x8b,0xe2,0xc0,
+	}
+ },
  { 0xa10123e, {
 		0x03,0xb9,0x2c,0x76,0x48,0x93,0xc9,0x18,
 		0xfb,0x56,0xfd,0xf7,0xe2,0x1d,0xca,0x4d,
···
 		0x1b,0x7d,0x64,0x9d,0x4b,0x53,0x13,0x75,
 	}
  },
+ { 0xa10124c, {
+		0x29,0xea,0xf1,0x2c,0xb2,0xe4,0xef,0x90,
+		0xa4,0xcd,0x1d,0x86,0x97,0x17,0x61,0x46,
+		0xfc,0x22,0xcb,0x57,0x75,0x19,0xc8,0xcc,
+		0x0c,0xf5,0xbc,0xac,0x81,0x9d,0x9a,0xd2,
+	}
+ },
  { 0xa108108, {
 		0xed,0xc2,0xec,0xa1,0x15,0xc6,0x65,0xe9,
 		0xd0,0xef,0x39,0xaa,0x7f,0x55,0x06,0xc6,
 		0xf5,0xd4,0x3f,0x7b,0x14,0xd5,0x60,0x2c,
 		0x28,0x1e,0x9c,0x59,0x69,0x99,0x4d,0x16,
+	}
+ },
+ { 0xa108109, {
+		0x85,0xb4,0xbd,0x7c,0x49,0xa7,0xbd,0xfa,
+		0x49,0x36,0x80,0x81,0xc5,0xb7,0x39,0x1b,
+		0x9a,0xaa,0x50,0xde,0x9b,0xe9,0x32,0x35,
+		0x42,0x7e,0x51,0x4f,0x52,0x2c,0x28,0x59,
 	}
  },
  { 0xa20102d, {
···
 		0x8c,0xe9,0x19,0x3e,0xcc,0x3f,0x7b,0xb4,
 	}
  },
+ { 0xa20102e, {
+		0xbe,0x1f,0x32,0x04,0x0d,0x3c,0x9c,0xdd,
+		0xe1,0xa4,0xbf,0x76,0x3a,0xec,0xc2,0xf6,
+		0x11,0x00,0xa7,0xaf,0x0f,0xe5,0x02,0xc5,
+		0x54,0x3a,0x1f,0x8c,0x16,0xb5,0xff,0xbe,
+	}
+ },
  { 0xa201210, {
 		0xe8,0x6d,0x51,0x6a,0x8e,0x72,0xf3,0xfe,
 		0x6e,0x16,0xbc,0x62,0x59,0x40,0x17,0xe9,
 		0x6d,0x3d,0x0e,0x6b,0xa7,0xac,0xe3,0x68,
 		0xf7,0x55,0xf0,0x13,0xbb,0x22,0xf6,0x41,
+	}
+ },
+ { 0xa201211, {
+		0x69,0xa1,0x17,0xec,0xd0,0xf6,0x6c,0x95,
+		0xe2,0x1e,0xc5,0x59,0x1a,0x52,0x0a,0x27,
+		0xc4,0xed,0xd5,0x59,0x1f,0xbf,0x00,0xff,
+		0x08,0x88,0xb5,0xe1,0x12,0xb6,0xcc,0x27,
 	}
  },
  { 0xa404107, {
···
 		0x13,0xbc,0xc5,0x25,0xe4,0xc5,0xc3,0x99,
 	}
  },
+ { 0xa404108, {
+		0x69,0x67,0x43,0x06,0xf8,0x0c,0x62,0xdc,
+		0xa4,0x21,0x30,0x4f,0x0f,0x21,0x2c,0xcb,
+		0xcc,0x37,0xf1,0x1c,0xc3,0xf8,0x2f,0x19,
+		0xdf,0x53,0x53,0x46,0xb1,0x15,0xea,0x00,
+	}
+ },
  { 0xa500011, {
 		0x23,0x3d,0x70,0x7d,0x03,0xc3,0xc4,0xf4,
 		0x2b,0x82,0xc6,0x05,0xda,0x80,0x0a,0xf1,
 		0xd7,0x5b,0x65,0x3a,0x7d,0xab,0xdf,0xa2,
 		0x11,0x5e,0x96,0x7e,0x71,0xe9,0xfc,0x74,
+	}
+ },
+ { 0xa500012, {
+		0xeb,0x74,0x0d,0x47,0xa1,0x8e,0x09,0xe4,
+		0x93,0x4c,0xad,0x03,0x32,0x4c,0x38,0x16,
+		0x10,0x39,0xdd,0x06,0xaa,0xce,0xd6,0x0f,
+		0x62,0x83,0x9d,0x8e,0x64,0x55,0xbe,0x63,
 	}
  },
  { 0xa601209, {
···
 		0xe8,0x73,0xe2,0xd6,0xdb,0xd2,0x77,0x1d,
 	}
  },
+ { 0xa60120a, {
+		0x0c,0x8b,0x3d,0xfd,0x52,0x52,0x85,0x7d,
+		0x20,0x3a,0xe1,0x7e,0xa4,0x21,0x3b,0x7b,
+		0x17,0x86,0xae,0xac,0x13,0xb8,0x63,0x9d,
+		0x06,0x01,0xd0,0xa0,0x51,0x9a,0x91,0x2c,
+	}
+ },
  { 0xa704107, {
 		0xf3,0xc6,0x58,0x26,0xee,0xac,0x3f,0xd6,
 		0xce,0xa1,0x72,0x47,0x3b,0xba,0x2b,0x93,
 		0x2a,0xad,0x8e,0x6b,0xea,0x9b,0xb7,0xc2,
 		0x64,0x39,0x71,0x8c,0xce,0xe7,0x41,0x39,
+	}
+ },
+ { 0xa704108, {
+		0xd7,0x55,0x15,0x2b,0xfe,0xc4,0xbc,0x93,
+		0xec,0x91,0xa0,0xae,0x45,0xb7,0xc3,0x98,
+		0x4e,0xff,0x61,0x77,0x88,0xc2,0x70,0x49,
+		0xe0,0x3a,0x1d,0x84,0x38,0x52,0xbf,0x5a,
 	}
  },
  { 0xa705206, {
···
 		0x03,0x35,0xe9,0xbe,0xfb,0x06,0xdf,0xfc,
 	}
  },
+ { 0xa705208, {
+		0x30,0x1d,0x55,0x24,0xbc,0x6b,0x5a,0x19,
+		0x0c,0x7d,0x1d,0x74,0xaa,0xd1,0xeb,0xd2,
+		0x16,0x62,0xf7,0x5b,0xe1,0x1f,0x18,0x11,
+		0x5c,0xf0,0x94,0x90,0x26,0xec,0x69,0xff,
+	}
+ },
  { 0xa708007, {
 		0x6b,0x76,0xcc,0x78,0xc5,0x8a,0xa3,0xe3,
 		0x32,0x2d,0x79,0xe4,0xc3,0x80,0xdb,0xb2,
···
 		0xdf,0x92,0x73,0x84,0x87,0x3c,0x73,0x93,
 	}
  },
+ { 0xa708008, {
+		0x08,0x6e,0xf0,0x22,0x4b,0x8e,0xc4,0x46,
+		0x58,0x34,0xe6,0x47,0xa2,0x28,0xfd,0xab,
+		0x22,0x3d,0xdd,0xd8,0x52,0x9e,0x1d,0x16,
+		0xfa,0x01,0x68,0x14,0x79,0x3e,0xe8,0x6b,
+	}
+ },
  { 0xa70c005, {
 		0x88,0x5d,0xfb,0x79,0x64,0xd8,0x46,0x3b,
 		0x4a,0x83,0x8e,0x77,0x7e,0xcf,0xb3,0x0f,
 		0x1f,0x1f,0xf1,0x97,0xeb,0xfe,0x56,0x55,
 		0xee,0x49,0xac,0xe1,0x8b,0x13,0xc5,0x13,
+	}
+ },
+ { 0xa70c008, {
+		0x0f,0xdb,0x37,0xa1,0x10,0xaf,0xd4,0x21,
+		0x94,0x0d,0xa4,0xa2,0xe9,0x86,0x6c,0x0e,
+		0x85,0x7c,0x36,0x30,0xa3,0x3a,0x78,0x66,
+		0x18,0x10,0x60,0x0d,0x78,0x3d,0x44,0xd0,
 	}
  },
  { 0xaa00116, {
···
 		0x4e,0x85,0x4b,0x7c,0x6b,0xd5,0x7c,0xd4,
 		0x1b,0x51,0x71,0x3a,0x0e,0x0b,0xdc,0x9b,
 		0x68,0x2f,0x46,0xee,0xfe,0xc6,0x6d,0xef,
+	}
+ },
+ { 0xaa00216, {
+		0x79,0xfb,0x5b,0x9f,0xb6,0xe6,0xa8,0xf5,
+		0x4e,0x7c,0x4f,0x8e,0x1d,0xad,0xd0,0x08,
+		0xc2,0x43,0x7c,0x8b,0xe6,0xdb,0xd0,0xd2,
+		0xe8,0x39,0x26,0xc1,0xe5,0x5a,0x48,0xf1,
 	}
  },
 };

arch/x86/kernel/cpu/scattered.c

···
 	{ X86_FEATURE_MBA,			CPUID_EBX,  6, 0x80000008, 0 },
 	{ X86_FEATURE_SMBA,			CPUID_EBX,  2, 0x80000020, 0 },
 	{ X86_FEATURE_BMEC,			CPUID_EBX,  3, 0x80000020, 0 },
+	{ X86_FEATURE_TSA_SQ_NO,		CPUID_ECX,  1, 0x80000021, 0 },
+	{ X86_FEATURE_TSA_L1_NO,		CPUID_ECX,  2, 0x80000021, 0 },
 	{ X86_FEATURE_AMD_WORKLOAD_CLASS,	CPUID_EAX, 22, 0x80000021, 0 },
 	{ X86_FEATURE_PERFMON_V2,		CPUID_EAX,  0, 0x80000022, 0 },
 	{ X86_FEATURE_AMD_LBR_V2,		CPUID_EAX,  1, 0x80000022, 0 },

arch/x86/kernel/process.c

···
  */
 static __cpuidle void mwait_idle(void)
 {
+	if (need_resched())
+		return;
+
+	x86_idle_clear_cpu_buffers();
+
 	if (!current_set_polling_and_test()) {
 		const void *addr = &current_thread_info()->flags;
 
 		alternative_input("", "clflush (%[addr])", X86_BUG_CLFLUSH_MONITOR, [addr] "a" (addr));
 		__monitor(addr, 0, 0);
-		if (!need_resched()) {
-			__sti_mwait(0, 0);
-			raw_local_irq_disable();
-		}
+		if (need_resched())
+			goto out;
+
+		__sti_mwait(0, 0);
+		raw_local_irq_disable();
 	}
+
+out:
 	__current_clr_polling();
 }
 

arch/x86/kvm/cpuid.c

···
 		 */
 		SYNTHESIZED_F(LFENCE_RDTSC),
 		/* SmmPgCfgLock */
+		/* 4: Resv */
+		SYNTHESIZED_F(VERW_CLEAR),
 		F(NULL_SEL_CLR_BASE),
 		/* UpperAddressIgnore */
 		F(AUTOIBRS),
···
 		SYNTHESIZED_F(IBPB_BRTYPE),
 		SYNTHESIZED_F(SRSO_NO),
 		F(SRSO_USER_KERNEL_NO),
+	);
+
+	kvm_cpu_cap_init(CPUID_8000_0021_ECX,
+		SYNTHESIZED_F(TSA_SQ_NO),
+		SYNTHESIZED_F(TSA_L1_NO),
 	);
 
 	kvm_cpu_cap_init(CPUID_8000_0022_EAX,
···
 		entry->eax = entry->ebx = entry->ecx = entry->edx = 0;
 		break;
 	case 0x80000021:
-		entry->ebx = entry->ecx = entry->edx = 0;
+		entry->ebx = entry->edx = 0;
 		cpuid_entry_override(entry, CPUID_8000_0021_EAX);
+		cpuid_entry_override(entry, CPUID_8000_0021_ECX);
 		break;
 	/* AMD Extended Performance Monitoring and Debug */
 	case 0x80000022: {

arch/x86/kvm/hyperv.c

···
 		if (entries[i] == KVM_HV_TLB_FLUSHALL_ENTRY)
 			goto out_flush_all;
 
+		if (is_noncanonical_invlpg_address(entries[i], vcpu))
+			continue;
+
 		/*
 		 * Lower 12 bits of 'address' encode the number of additional
 		 * pages to flush.
···
 static u64 kvm_hv_flush_tlb(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc)
 {
 	struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu);
+	unsigned long *vcpu_mask = hv_vcpu->vcpu_mask;
 	u64 *sparse_banks = hv_vcpu->sparse_banks;
 	struct kvm *kvm = vcpu->kvm;
 	struct hv_tlb_flush_ex flush_ex;
 	struct hv_tlb_flush flush;
-	DECLARE_BITMAP(vcpu_mask, KVM_MAX_VCPUS);
 	struct kvm_vcpu_hv_tlb_flush_fifo *tlb_flush_fifo;
 	/*
 	 * Normally, there can be no more than 'KVM_HV_TLB_FLUSH_FIFO_SIZE'

arch/x86/kvm/reverse_cpuid.h

···
 /* CPUID level 0x80000022 (EAX) */
 #define KVM_X86_FEATURE_PERFMON_V2	KVM_X86_FEATURE(CPUID_8000_0022_EAX, 0)
 
+/* CPUID level 0x80000021 (ECX) */
+#define KVM_X86_FEATURE_TSA_SQ_NO	KVM_X86_FEATURE(CPUID_8000_0021_ECX, 1)
+#define KVM_X86_FEATURE_TSA_L1_NO	KVM_X86_FEATURE(CPUID_8000_0021_ECX, 2)
+
 struct cpuid_reg {
 	u32 function;
 	u32 index;
···
 	[CPUID_8000_0022_EAX] = {0x80000022, 0, CPUID_EAX},
 	[CPUID_7_2_EDX]       = {         7, 2, CPUID_EDX},
 	[CPUID_24_0_EBX]      = {      0x24, 0, CPUID_EBX},
+	[CPUID_8000_0021_ECX] = {0x80000021, 0, CPUID_ECX},
 };
 
 /*
···
 	KVM_X86_TRANSLATE_FEATURE(PERFMON_V2);
 	KVM_X86_TRANSLATE_FEATURE(RRSBA_CTRL);
 	KVM_X86_TRANSLATE_FEATURE(BHI_CTRL);
+	KVM_X86_TRANSLATE_FEATURE(TSA_SQ_NO);
+	KVM_X86_TRANSLATE_FEATURE(TSA_L1_NO);
 	default:
 		return x86_feature;
 	}

arch/x86/kvm/svm/sev.c

···
 	struct kvm_vcpu *src_vcpu;
 	unsigned long i;
 
+	if (src->created_vcpus != atomic_read(&src->online_vcpus) ||
+	    dst->created_vcpus != atomic_read(&dst->online_vcpus))
+		return -EBUSY;
+
 	if (!sev_es_guest(src))
 		return 0;
 
···
 	 * the VMSA will be NULL if this vCPU is the destination for intrahost
 	 * migration, and will be copied later.
 	 */
-	if (svm->sev_es.vmsa && !svm->sev_es.snp_has_guest_vmsa)
-		svm->vmcb->control.vmsa_pa = __pa(svm->sev_es.vmsa);
+	if (!svm->sev_es.snp_has_guest_vmsa) {
+		if (svm->sev_es.vmsa)
+			svm->vmcb->control.vmsa_pa = __pa(svm->sev_es.vmsa);
+		else
+			svm->vmcb->control.vmsa_pa = INVALID_PAGE;
+	}
 
 	if (cpu_feature_enabled(X86_FEATURE_ALLOWED_SEV_FEATURES))
 		svm->vmcb->control.allowed_sev_features = sev->vmsa_features |

arch/x86/kvm/svm/vmenter.S

···
 #endif
 	mov VCPU_RDI(%_ASM_DI), %_ASM_DI
 
+	/* Clobbers EFLAGS.ZF */
+	VM_CLEAR_CPU_BUFFERS
+
 	/* Enter guest mode */
 3:	vmrun %_ASM_AX
 4:
···
 	/* Get svm->current_vmcb->pa into RAX. */
 	mov SVM_current_vmcb(%rdi), %rax
 	mov KVM_VMCB_pa(%rax), %rax
+
+	/* Clobbers EFLAGS.ZF */
+	VM_CLEAR_CPU_BUFFERS
 
 	/* Enter guest mode */
 1:	vmrun %rax

arch/x86/kvm/vmx/tdx.c

···
 	tdx_clear_unsupported_cpuid(entry);
 }
 
+#define TDVMCALLINFO_GET_QUOTE				BIT(0)
+#define TDVMCALLINFO_SETUP_EVENT_NOTIFY_INTERRUPT	BIT(1)
+
 static int init_kvm_tdx_caps(const struct tdx_sys_info_td_conf *td_conf,
 			     struct kvm_tdx_capabilities *caps)
 {
···
 		return -EIO;
 
 	caps->cpuid.nent = td_conf->num_cpuid_config;
+
+	caps->user_tdvmcallinfo_1_r11 =
+		TDVMCALLINFO_GET_QUOTE |
+		TDVMCALLINFO_SETUP_EVENT_NOTIFY_INTERRUPT;
 
 	for (i = 0; i < td_conf->num_cpuid_config; i++)
 		td_init_cpuid_entry2(&caps->cpuid.entries[i], i);
···
 	return 0;
 }
 
+static int tdx_setup_event_notify_interrupt(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_tdx *tdx = to_tdx(vcpu);
+	u64 vector = tdx->vp_enter_args.r12;
+
+	if (vector < 32 || vector > 255) {
+		tdvmcall_set_return_code(vcpu, TDVMCALL_STATUS_INVALID_OPERAND);
+		return 1;
+	}
+
+	vcpu->run->exit_reason = KVM_EXIT_TDX;
+	vcpu->run->tdx.flags = 0;
+	vcpu->run->tdx.nr = TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT;
+	vcpu->run->tdx.setup_event_notify.ret = TDVMCALL_STATUS_SUBFUNC_UNSUPPORTED;
+	vcpu->run->tdx.setup_event_notify.vector = vector;
+
+	vcpu->arch.complete_userspace_io = tdx_complete_simple;
+
+	return 0;
+}
+
 static int handle_tdvmcall(struct kvm_vcpu *vcpu)
 {
 	switch (tdvmcall_leaf(vcpu)) {
···
 		return tdx_get_td_vm_call_info(vcpu);
 	case TDVMCALL_GET_QUOTE:
 		return tdx_get_quote(vcpu);
+	case TDVMCALL_SETUP_EVENT_NOTIFY_INTERRUPT:
+		return tdx_setup_event_notify_interrupt(vcpu);
 	default:
 		break;
 	}

arch/x86/kvm/vmx/vmx.c

···
 		vmx_l1d_flush(vcpu);
 	else if (static_branch_unlikely(&cpu_buf_vm_clear) &&
 		 kvm_arch_has_assigned_device(vcpu->kvm))
-		mds_clear_cpu_buffers();
+		x86_clear_cpu_buffers();
 
 	vmx_disable_fb_clear(vmx);
 

arch/x86/kvm/x86.c

···
 
 	/* With all the info we got, fill in the values */
 
-	if (kvm_caps.has_tsc_control)
+	if (kvm_caps.has_tsc_control) {
 		tgt_tsc_khz = kvm_scale_tsc(tgt_tsc_khz,
 					    v->arch.l1_tsc_scaling_ratio);
+		tgt_tsc_khz = tgt_tsc_khz ? : 1;
+	}
 
 	if (unlikely(vcpu->hw_tsc_khz != tgt_tsc_khz)) {
 		kvm_get_time_scale(NSEC_PER_SEC, tgt_tsc_khz * 1000LL,

arch/x86/kvm/xen.c

···
 {
 	struct kvm_vcpu *vcpu;
 
-	if (ue->u.xen_evtchn.port >= max_evtchn_port(kvm))
-		return -EINVAL;
+	/*
+	 * Don't check for the port being within range of max_evtchn_port().
+	 * Userspace can configure what ever targets it likes; events just won't
+	 * be delivered if/while the target is invalid, just like userspace can
+	 * configure MSIs which target non-existent APICs.
+	 *
+	 * This allow on Live Migration and Live Update, the IRQ routing table
+	 * can be restored *independently* of other things like creating vCPUs,
+	 * without imposing an ordering dependency on userspace.  In this
+	 * particular case, the problematic ordering would be with setting the
+	 * Xen 'long mode' flag, which changes max_evtchn_port() to allow 4096
+	 * instead of 1024 event channels.
+	 */
 
 	/* We only support 2 level event channels for now */
 	if (ue->u.xen_evtchn.priority != KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL)

drivers/acpi/battery.c

···
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
 	case POWER_SUPPLY_PROP_POWER_NOW:
-		if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN) {
+		if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN)
 			ret = -ENODEV;
-			break;
-		}
-
-		val->intval = battery->rate_now * 1000;
-		/*
-		 * When discharging, the current should be reported as a
-		 * negative number as per the power supply class interface
-		 * definition.
-		 */
-		if (psp == POWER_SUPPLY_PROP_CURRENT_NOW &&
-		    (battery->state & ACPI_BATTERY_STATE_DISCHARGING) &&
-		    acpi_battery_handle_discharging(battery)
-				== POWER_SUPPLY_STATUS_DISCHARGING)
-			val->intval = -val->intval;
-
+		else
+			val->intval = battery->rate_now * 1000;
 		break;
 	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
 	case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:

drivers/base/cpu.c

···
 CPU_SHOW_VULN_FALLBACK(ghostwrite);
 CPU_SHOW_VULN_FALLBACK(old_microcode);
 CPU_SHOW_VULN_FALLBACK(indirect_target_selection);
+CPU_SHOW_VULN_FALLBACK(tsa);
 
 static DEVICE_ATTR(meltdown, 0444, cpu_show_meltdown, NULL);
 static DEVICE_ATTR(spectre_v1, 0444, cpu_show_spectre_v1, NULL);
···
 static DEVICE_ATTR(ghostwrite, 0444, cpu_show_ghostwrite, NULL);
 static DEVICE_ATTR(old_microcode, 0444, cpu_show_old_microcode, NULL);
 static DEVICE_ATTR(indirect_target_selection, 0444, cpu_show_indirect_target_selection, NULL);
+static DEVICE_ATTR(tsa, 0444, cpu_show_tsa, NULL);
 
 static struct attribute *cpu_root_vulnerabilities_attrs[] = {
 	&dev_attr_meltdown.attr,
···
 	&dev_attr_ghostwrite.attr,
 	&dev_attr_old_microcode.attr,
 	&dev_attr_indirect_target_selection.attr,
+	&dev_attr_tsa.attr,
 	NULL
 };
 

drivers/base/power/main.c

···
  */
 void dpm_resume_end(pm_message_t state)
 {
+	pm_restore_gfp_mask();
 	dpm_resume(state);
 	dpm_complete(state);
 }
···
 	error = dpm_prepare(state);
 	if (error)
 		dpm_save_failed_step(SUSPEND_PREPARE);
-	else
+	else {
+		pm_restrict_gfp_mask();
 		error = dpm_suspend(state);
+	}
 
 	dpm_show_time(starttime, state, error, "start");
 	return error;

drivers/block/brd.c

···
 
 	rcu_read_unlock();
 	page = alloc_page(gfp | __GFP_ZERO | __GFP_HIGHMEM);
-	rcu_read_lock();
-	if (!page)
+	if (!page) {
+		rcu_read_lock();
 		return ERR_PTR(-ENOMEM);
+	}
 
 	xa_lock(&brd->brd_pages);
 	ret = __xa_cmpxchg(&brd->brd_pages, sector >> PAGE_SECTORS_SHIFT, NULL,
 			page, gfp);
+	rcu_read_lock();
 	if (ret) {
 		xa_unlock(&brd->brd_pages);
 		__free_page(page);

drivers/block/ublk_drv.c

···
 		struct ublk_queue *this_q = req->mq_hctx->driver_data;
 		struct ublk_io *this_io = &this_q->ios[req->tag];
 
+		if (ublk_prep_req(this_q, req, true) != BLK_STS_OK) {
+			rq_list_add_tail(&requeue_list, req);
+			continue;
+		}
+
 		if (io && !ublk_belong_to_same_batch(io, this_io) &&
 				!rq_list_empty(&submit_list))
 			ublk_queue_cmd_list(io, &submit_list);
 		io = this_io;
-
-		if (ublk_prep_req(this_q, req, true) == BLK_STS_OK)
-			rq_list_add_tail(&submit_list, req);
-		else
-			rq_list_add_tail(&requeue_list, req);
+		rq_list_add_tail(&submit_list, req);
 	}
 
 	if (!rq_list_empty(&submit_list))

drivers/dma-buf/dma-resv.c

···
 	dma_resv_iter_begin(&cursor, obj, usage);
 	dma_resv_for_each_fence_unlocked(&cursor, fence) {
 
-		ret = dma_fence_wait_timeout(fence, intr, ret);
-		if (ret <= 0) {
-			dma_resv_iter_end(&cursor);
-			return ret;
-		}
+		ret = dma_fence_wait_timeout(fence, intr, timeout);
+		if (ret <= 0)
+			break;
+
+		/* Even for zero timeout the return value is 1 */
+		if (timeout)
+			timeout = ret;
 	}
 	dma_resv_iter_end(&cursor);
 

drivers/edac/ecs.c

···
 		fru_ctx->dev_attr[ECS_RESET]		= EDAC_ECS_ATTR_WO(reset, fru);
 		fru_ctx->dev_attr[ECS_THRESHOLD]	= EDAC_ECS_ATTR_RW(threshold, fru);
 
-		for (i = 0; i < ECS_MAX_ATTRS; i++)
+		for (i = 0; i < ECS_MAX_ATTRS; i++) {
+			sysfs_attr_init(&fru_ctx->dev_attr[i].dev_attr.attr);
 			fru_ctx->ecs_attrs[i] = &fru_ctx->dev_attr[i].dev_attr.attr;
+		}
 
 		sprintf(fru_ctx->name, "%s%d", EDAC_ECS_FRU_NAME, fru);
 		group->name = fru_ctx->name;

drivers/edac/mem_repair.c

···
 	for (i = 0; i < MR_MAX_ATTRS; i++) {
 		memcpy(&ctx->mem_repair_dev_attr[i],
 		       &dev_attr[i], sizeof(dev_attr[i]));
+		sysfs_attr_init(&ctx->mem_repair_dev_attr[i].dev_attr.attr);
 		ctx->mem_repair_attrs[i] =
 			&ctx->mem_repair_dev_attr[i].dev_attr.attr;
 	}

drivers/edac/scrub.c

···
 	group = &scrub_ctx->group;
 	for (i = 0; i < SCRUB_MAX_ATTRS; i++) {
 		memcpy(&scrub_ctx->scrub_dev_attr[i], &dev_attr[i], sizeof(dev_attr[i]));
+		sysfs_attr_init(&scrub_ctx->scrub_dev_attr[i].dev_attr.attr);
 		scrub_ctx->scrub_attrs[i] = &scrub_ctx->scrub_dev_attr[i].dev_attr.attr;
 	}
 	sprintf(scrub_ctx->name, "%s%d", "scrub", instance);

drivers/firmware/arm_ffa/driver.c

···
 	struct work_struct sched_recv_irq_work;
 	struct xarray partition_info;
 	DECLARE_HASHTABLE(notifier_hash, ilog2(FFA_MAX_NOTIFICATIONS));
-	struct mutex notify_lock; /* lock to protect notifier hashtable  */
+	rwlock_t notify_lock; /* lock to protect notifier hashtable  */
 };
 
 static struct ffa_drv_info *drv_info;
···
 	return NULL;
 }
 
-static int
-update_notifier_cb(struct ffa_device *dev, int notify_id, void *cb,
-		   void *cb_data, bool is_registration, bool is_framework)
+static int update_notifier_cb(struct ffa_device *dev, int notify_id,
+			      struct notifier_cb_info *cb, bool is_framework)
 {
 	struct notifier_cb_info *cb_info = NULL;
 	enum notify_type type = ffa_notify_type_get(dev->vm_id);
-	bool cb_found;
+	bool cb_found, is_registration = !!cb;
 
 	if (is_framework)
 		cb_info = notifier_hnode_get_by_vmid_uuid(notify_id, dev->vm_id,
···
 		return -EINVAL;
 
 	if (is_registration) {
-		cb_info = kzalloc(sizeof(*cb_info), GFP_KERNEL);
-		if (!cb_info)
-			return -ENOMEM;
-
-		cb_info->dev = dev;
-		cb_info->cb_data = cb_data;
-		if (is_framework)
-			cb_info->fwk_cb = cb;
-		else
-			cb_info->cb = cb;
-
-		hash_add(drv_info->notifier_hash, &cb_info->hnode, notify_id);
+		hash_add(drv_info->notifier_hash, &cb->hnode, notify_id);
 	} else {
 		hash_del(&cb_info->hnode);
+		kfree(cb_info);
 	}
 
 	return 0;
···
 	if (notify_id >= FFA_MAX_NOTIFICATIONS)
 		return -EINVAL;
 
-	mutex_lock(&drv_info->notify_lock);
+	write_lock(&drv_info->notify_lock);
 
-	rc = update_notifier_cb(dev, notify_id, NULL, NULL, false,
-				is_framework);
+	rc = update_notifier_cb(dev, notify_id, NULL, is_framework);
 	if (rc) {
 		pr_err("Could not unregister notification callback\n");
-		mutex_unlock(&drv_info->notify_lock);
+		write_unlock(&drv_info->notify_lock);
 		return rc;
 	}
 
 	if (!is_framework)
 		rc = ffa_notification_unbind(dev->vm_id, BIT(notify_id));
 
-	mutex_unlock(&drv_info->notify_lock);
+	write_unlock(&drv_info->notify_lock);
 
 	return rc;
 }
···
 {
 	int rc;
 	u32 flags = 0;
+	struct notifier_cb_info *cb_info = NULL;
 
 	if (ffa_notifications_disabled())
 		return -EOPNOTSUPP;
···
 	if (notify_id >= FFA_MAX_NOTIFICATIONS)
 		return -EINVAL;
 
-	mutex_lock(&drv_info->notify_lock);
+	cb_info = kzalloc(sizeof(*cb_info), GFP_KERNEL);
+	if (!cb_info)
+		return -ENOMEM;
+
+	cb_info->dev = dev;
+	cb_info->cb_data = cb_data;
+	if (is_framework)
+		cb_info->fwk_cb = cb;
+	else
+		cb_info->cb = cb;
+
+	write_lock(&drv_info->notify_lock);
 
 	if (!is_framework) {
 		if (is_per_vcpu)
 			flags = PER_VCPU_NOTIFICATION_FLAG;
 
 		rc = ffa_notification_bind(dev->vm_id, BIT(notify_id), flags);
-		if (rc) {
-			mutex_unlock(&drv_info->notify_lock);
-			return rc;
-		}
+		if (rc)
+			goto out_unlock_free;
 	}
 
-	rc = update_notifier_cb(dev, notify_id, cb, cb_data, true,
-				is_framework);
+	rc = update_notifier_cb(dev, notify_id, cb_info, is_framework);
 	if (rc) {
 		pr_err("Failed to register callback for %d - %d\n",
 		       notify_id, rc);
 		if (!is_framework)
 			ffa_notification_unbind(dev->vm_id, BIT(notify_id));
 	}
-	mutex_unlock(&drv_info->notify_lock);
+
+out_unlock_free:
+	write_unlock(&drv_info->notify_lock);
+	if (rc)
+		kfree(cb_info);
 
 	return rc;
 }
···
 		if (!(bitmap & 1))
 			continue;
 
-		mutex_lock(&drv_info->notify_lock);
+		read_lock(&drv_info->notify_lock);
 		cb_info = notifier_hnode_get_by_type(notify_id, type);
-		mutex_unlock(&drv_info->notify_lock);
+		read_unlock(&drv_info->notify_lock);
 
 		if (cb_info && cb_info->cb)
 			cb_info->cb(notify_id, cb_info->cb_data);
···
 
 	ffa_rx_release();
 
-	mutex_lock(&drv_info->notify_lock);
+	read_lock(&drv_info->notify_lock);
 	cb_info = notifier_hnode_get_by_vmid_uuid(notify_id, target, &uuid);
-	mutex_unlock(&drv_info->notify_lock);
+	read_unlock(&drv_info->notify_lock);
 
 	if (cb_info && cb_info->fwk_cb)
 		cb_info->fwk_cb(notify_id, cb_info->cb_data, buf);
···
 		goto cleanup;
 
 	hash_init(drv_info->notifier_hash);
-	mutex_init(&drv_info->notify_lock);
+	rwlock_init(&drv_info->notify_lock);
 
 	drv_info->notif_enabled = true;
 	return;

drivers/firmware/efi/libstub/zboot.lds

···
 		. = _etext;
 	}
 
-#ifdef CONFIG_EFI_SBAT
         .sbat : ALIGN(4096) {
 		_sbat = .;
 		*(.sbat)
 		_esbat = ALIGN(4096);
 		. = _esbat;
 	}
-#endif
 
 	.data : ALIGN(4096) {
 		_data = .;
···
 PROVIDE(__efistub__gzdata_size =
 		ABSOLUTE(__efistub__gzdata_end - __efistub__gzdata_start));
 
-PROVIDE(__data_rawsize = ABSOLUTE(_edata - _etext));
-PROVIDE(__data_size = ABSOLUTE(_end - _etext));
+PROVIDE(__data_rawsize = ABSOLUTE(_edata - _data));
+PROVIDE(__data_size = ABSOLUTE(_end - _data));
 PROVIDE(__sbat_size = ABSOLUTE(_esbat - _sbat));

drivers/firmware/samsung/exynos-acpm.c

···
 		return -EOPNOTSUPP;
 	}
 
+	msg.chan_id = xfer->acpm_chan_id;
+	msg.chan_type = EXYNOS_MBOX_CHAN_TYPE_DOORBELL;
+
 	scoped_guard(mutex, &achan->tx_lock) {
 		tx_front = readl(achan->tx.front);
 		idx = (tx_front + 1) % achan->qlen;
···
 
 		/* Advance TX front. */
 		writel(idx, achan->tx.front);
+
+		ret = mbox_send_message(achan->chan, (void *)&msg);
+		if (ret < 0)
+			return ret;
+
+		mbox_client_txdone(achan->chan, 0);
 	}
 
-	msg.chan_id = xfer->acpm_chan_id;
-	msg.chan_type = EXYNOS_MBOX_CHAN_TYPE_DOORBELL;
-	ret = mbox_send_message(achan->chan, (void *)&msg);
-	if (ret < 0)
-		return ret;
-
-	ret = acpm_wait_for_message_response(achan, xfer);
-
-	/*
-	 * NOTE: we might prefer not to need the mailbox ticker to manage the
-	 * transfer queueing since the protocol layer queues things by itself.
-	 * Unfortunately, we have to kick the mailbox framework after we have
-	 * received our message.
-	 */
-	mbox_client_txdone(achan->chan, ret);
-
-	return ret;
+	return acpm_wait_for_message_response(achan, xfer);
 }
 
 /**

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c

···
 	return REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 }
 
+static uint32_t kgd_hqd_sdma_get_doorbell(struct amdgpu_device *adev,
+					  int engine, int queue)
+
+{
+	return 0;
+}
+
 const struct kfd2kgd_calls gfx_v7_kfd2kgd = {
 	.program_sh_mem_settings = kgd_program_sh_mem_settings,
 	.set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
···
 	.set_scratch_backing_va = set_scratch_backing_va,
 	.set_vm_context_page_table_base = set_vm_context_page_table_base,
 	.read_vmid_from_vmfault_reg = read_vmid_from_vmfault_reg,
+	.hqd_sdma_get_doorbell = kgd_hqd_sdma_get_doorbell,
 };

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c

···
 			lower_32_bits(page_table_base));
 }
 
+static uint32_t kgd_hqd_sdma_get_doorbell(struct amdgpu_device *adev,
+					  int engine, int queue)
+
+{
+	return 0;
+}
+
 const struct kfd2kgd_calls gfx_v8_kfd2kgd = {
 	.program_sh_mem_settings = kgd_program_sh_mem_settings,
 	.set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
···
 			get_atc_vmid_pasid_mapping_info,
 	.set_scratch_backing_va = set_scratch_backing_va,
 	.set_vm_context_page_table_base = set_vm_context_page_table_base,
+	.hqd_sdma_get_doorbell = kgd_hqd_sdma_get_doorbell,
 };

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

···
 				drm_sched_entity_fini(entity);
 			}
 		}
+		kref_put(&ctx->refcount, amdgpu_ctx_fini);
 	}
 }
 

drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c

···
 #include "amdgpu_ras.h"
 
 MODULE_FIRMWARE("amdgpu/sdma_4_4_2.bin");
+MODULE_FIRMWARE("amdgpu/sdma_4_4_4.bin");
 MODULE_FIRMWARE("amdgpu/sdma_4_4_5.bin");
 
 static const struct amdgpu_hwip_reg_entry sdma_reg_list_4_4_2[] = {

drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c

···
 {
 	struct amdgpu_device *adev = ring->adev;
 	u32 inst_id = ring->me;
+	int r;
 
-	return amdgpu_sdma_reset_engine(adev, inst_id);
+	amdgpu_amdkfd_suspend(adev, true);
+	r = amdgpu_sdma_reset_engine(adev, inst_id);
+	amdgpu_amdkfd_resume(adev, true);
+
+	return r;
 }
 
 static int sdma_v5_0_stop_queue(struct amdgpu_ring *ring)

drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c

···
 {
 	struct amdgpu_device *adev = ring->adev;
 	u32 inst_id = ring->me;
+	int r;
 
-	return amdgpu_sdma_reset_engine(adev, inst_id);
+	amdgpu_amdkfd_suspend(adev, true);
+	r = amdgpu_sdma_reset_engine(adev, inst_id);
+	amdgpu_amdkfd_resume(adev, true);
+
+	return r;
 }
 
 static int sdma_v5_2_stop_queue(struct amdgpu_ring *ring)

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

···
 }
 
 static void
-svm_range_add_child(struct svm_range *prange, struct mm_struct *mm,
-		    struct svm_range *pchild, enum svm_work_list_ops op)
+svm_range_add_child(struct svm_range *prange, struct svm_range *pchild, enum svm_work_list_ops op)
 {
 	pr_debug("add child 0x%p [0x%lx 0x%lx] to prange 0x%p child list %d\n",
 		 pchild, pchild->start, pchild->last, prange, op);
 
-	pchild->work_item.mm = mm;
+	pchild->work_item.mm = NULL;
 	pchild->work_item.op = op;
 	list_add_tail(&pchild->child_list, &prange->child_list);
 }
···
 				mapping_flags |= ext_coherent ? AMDGPU_VM_MTYPE_UC : AMDGPU_VM_MTYPE_NC;
 		/* system memory accessed by the dGPU */
 		} else {
-			if (gc_ip_version < IP_VERSION(9, 5, 0))
+			if (gc_ip_version < IP_VERSION(9, 5, 0) || ext_coherent)
 				mapping_flags |= AMDGPU_VM_MTYPE_UC;
 			else
 				mapping_flags |= AMDGPU_VM_MTYPE_NC;
···
 		    prange->work_item.op != SVM_OP_UNMAP_RANGE)
 			prange->work_item.op = op;
 	} else {
-		prange->work_item.op = op;
-
-		/* Pairs with mmput in deferred_list_work */
-		mmget(mm);
-		prange->work_item.mm = mm;
-		list_add_tail(&prange->deferred_list,
-			      &prange->svms->deferred_range_list);
-		pr_debug("add prange 0x%p [0x%lx 0x%lx] to work list op %d\n",
-			 prange, prange->start, prange->last, op);
+		/* Pairs with mmput in deferred_list_work.
+		 * If process is exiting and mm is gone, don't update mmu notifier.
+		 */
+		if (mmget_not_zero(mm)) {
+			prange->work_item.mm = mm;
+			prange->work_item.op = op;
+			list_add_tail(&prange->deferred_list,
+				      &prange->svms->deferred_range_list);
+			pr_debug("add prange 0x%p [0x%lx 0x%lx] to work list op %d\n",
+				 prange, prange->start, prange->last, op);
+		}
 	}
 	spin_unlock(&svms->deferred_list_lock);
 }
···
 }
 
 static void
-svm_range_unmap_split(struct mm_struct *mm, struct svm_range *parent,
-		      struct svm_range *prange, unsigned long start,
+svm_range_unmap_split(struct svm_range *parent, struct svm_range *prange, unsigned long start,
 		      unsigned long last)
 {
 	struct svm_range *head;
···
 		svm_range_split(tail, last + 1, tail->last, &head);
 
 	if (head != prange && tail != prange) {
-		svm_range_add_child(parent, mm, head, SVM_OP_UNMAP_RANGE);
-		svm_range_add_child(parent, mm, tail, SVM_OP_ADD_RANGE);
+		svm_range_add_child(parent, head, SVM_OP_UNMAP_RANGE);
+		svm_range_add_child(parent, tail, SVM_OP_ADD_RANGE);
 	} else if (tail != prange) {
-		svm_range_add_child(parent, mm, tail, SVM_OP_UNMAP_RANGE);
+		svm_range_add_child(parent, tail, SVM_OP_UNMAP_RANGE);
 	} else if (head != prange) {
-		svm_range_add_child(parent, mm, head, SVM_OP_UNMAP_RANGE);
+		svm_range_add_child(parent, head, SVM_OP_UNMAP_RANGE);
 	} else if (parent != prange) {
 		prange->work_item.op = SVM_OP_UNMAP_RANGE;
 	}
···
 		l = min(last, pchild->last);
 		if (l >= s)
 			svm_range_unmap_from_gpus(pchild, s, l, trigger);
-		svm_range_unmap_split(mm, prange, pchild, start, last);
+		svm_range_unmap_split(prange, pchild, start, last);
 		mutex_unlock(&pchild->lock);
 	}
 	s = max(start, prange->start);
 	l = min(last, prange->last);
 	if (l >= s)
 		svm_range_unmap_from_gpus(prange, s, l, trigger);
-	svm_range_unmap_split(mm, prange, prange, start, last);
+	svm_range_unmap_split(prange, prange, start, last);
 
 	if (unmap_parent)
 		svm_range_add_list_work(svms, prange, mm, SVM_OP_UNMAP_RANGE);
···
 
 	if (range->event == MMU_NOTIFY_RELEASE)
 		return true;
-	if (!mmget_not_zero(mni->mm))
-		return true;
 
 	start = mni->interval_tree.start;
 	last = mni->interval_tree.last;
···
 	}
 
 	svm_range_unlock(prange);
-	mmput(mni->mm);
 
 	return true;
 }

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

···
 
 	luminance_range = &conn_base->display_info.luminance_range;
 
-	if (luminance_range->max_luminance) {
-		caps->aux_min_input_signal = luminance_range->min_luminance;
+	if (luminance_range->max_luminance)
 		caps->aux_max_input_signal = luminance_range->max_luminance;
-	} else {
-		caps->aux_min_input_signal = 0;
+	else
 		caps->aux_max_input_signal = 512;
-	}
+
+	if (luminance_range->min_luminance)
+		caps->aux_min_input_signal = luminance_range->min_luminance;
+	else
+		caps->aux_min_input_signal = 1;
 
 	min_input_signal_override = drm_get_panel_min_brightness_quirk(aconnector->drm_edid);
 	if (min_input_signal_override >= 0)

drivers/gpu/drm/amd/display/dc/dc_hw_types.h

···
 	uint32_t pix_clk_100hz;
 
 	uint32_t min_refresh_in_uhz;
+	uint32_t max_refresh_in_uhz;
 
 	uint32_t vic;
 	uint32_t hdmi_vic;

drivers/gpu/drm/amd/display/modules/freesync/freesync.c

···
 		v_total = div64_u64(div64_u64(((unsigned long long)(
 				frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)),
 				stream->timing.h_total), 1000000);
+	} else if (refresh_in_uhz >= stream->timing.max_refresh_in_uhz) {
+		/* When the target refresh rate is the maximum panel refresh rate
+		 * round up the vtotal value to prevent off-by-one error causing
+		 * v_total_min to be below the panel's lower bound
+		 */
+		v_total = div64_u64(div64_u64(((unsigned long long)(
+				frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)),
+				stream->timing.h_total) + (1000000 - 1), 1000000);
 	} else {
 		v_total = div64_u64(div64_u64(((unsigned long long)(
 				frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)),

drivers/gpu/drm/bridge/aux-hpd-bridge.c

···
 	adev->id = ret;
 	adev->name = "dp_hpd_bridge";
 	adev->dev.parent = parent;
-	adev->dev.of_node = of_node_get(parent->of_node);
 	adev->dev.release = drm_aux_hpd_bridge_release;
 	adev->dev.platform_data = of_node_get(np);
+
+	device_set_of_node_from_dev(&adev->dev, parent);
 
 	ret = auxiliary_device_init(adev);
 	if (ret) {

drivers/gpu/drm/bridge/panel.c

···
 	panel_bridge->bridge.of_node = panel->dev->of_node;
 	panel_bridge->bridge.ops = DRM_BRIDGE_OP_MODES;
 	panel_bridge->bridge.type = connector_type;
+	panel_bridge->bridge.pre_enable_prev_first = panel->prepare_prev_first;
 
 	drm_bridge_add(&panel_bridge->bridge);
 
···
 		return bridge;
 	}
 
-	bridge->pre_enable_prev_first = panel->prepare_prev_first;
-
 	*ptr = bridge;
 	devres_add(dev, ptr);
 
···
 				       bridge);
 	if (ret)
 		return ERR_PTR(ret);
-
-	bridge->pre_enable_prev_first = panel->prepare_prev_first;
 
 	return bridge;
 }

drivers/gpu/drm/bridge/samsung-dsim.c

···
 	bool first = !xfer->tx_done;
 	u32 reg;
 
-	dev_dbg(dev, "< xfer %pK: tx len %u, done %u, rx len %u, done %u\n",
+	dev_dbg(dev, "< xfer %p: tx len %u, done %u, rx len %u, done %u\n",
 		xfer, length, xfer->tx_done, xfer->rx_len, xfer->rx_done);
 
 	if (length > DSI_TX_FIFO_SIZE)
···
 	spin_unlock_irqrestore(&dsi->transfer_lock, flags);
 
 	dev_dbg(dsi->dev,
-		"> xfer %pK, tx_len %zu, tx_done %u, rx_len %u, rx_done %u\n",
+		"> xfer %p, tx_len %zu, tx_done %u, rx_len %u, rx_done %u\n",
 		xfer, xfer->packet.payload_length, xfer->tx_done, xfer->rx_len,
 		xfer->rx_done);
 

drivers/gpu/drm/drm_gem.c

···
 }
 EXPORT_SYMBOL(drm_gem_private_object_fini);
 
+static void drm_gem_object_handle_get(struct drm_gem_object *obj)
+{
+	struct drm_device *dev = obj->dev;
+
+	drm_WARN_ON(dev, !mutex_is_locked(&dev->object_name_lock));
+
+	if (obj->handle_count++ == 0)
+		drm_gem_object_get(obj);
+}
+
+/**
+ * drm_gem_object_handle_get_unlocked - acquire reference on user-space handles
+ * @obj: GEM object
+ *
+ * Acquires a reference on the GEM buffer object's handle. Required
+ * to keep the GEM object alive. Call drm_gem_object_handle_put_unlocked()
+ * to release the reference.
+ */
+void drm_gem_object_handle_get_unlocked(struct drm_gem_object *obj)
+{
+	struct drm_device *dev = obj->dev;
+
+	guard(mutex)(&dev->object_name_lock);
+
+	drm_WARN_ON(dev, !obj->handle_count); /* first ref taken in create-tail helper */
+	drm_gem_object_handle_get(obj);
+}
+EXPORT_SYMBOL(drm_gem_object_handle_get_unlocked);
+
 /**
  * drm_gem_object_handle_free - release resources bound to userspace handles
  * @obj: GEM object to clean up.
···
 	}
 }
 
-static void
-drm_gem_object_handle_put_unlocked(struct drm_gem_object *obj)
+/**
+ * drm_gem_object_handle_put_unlocked - releases reference on user-space handles
+ * @obj: GEM object
+ *
+ * Releases a reference on the GEM buffer object's handle. Possibly releases
+ * the GEM buffer object and associated dma-buf objects.
+ */
+void drm_gem_object_handle_put_unlocked(struct drm_gem_object *obj)
 {
 	struct drm_device *dev = obj->dev;
 	bool final = false;
···
 	if (final)
 		drm_gem_object_put(obj);
 }
+EXPORT_SYMBOL(drm_gem_object_handle_put_unlocked);
 
 /*
  * Called at device or object close to release the file's
···
 	int ret;
 
 	WARN_ON(!mutex_is_locked(&dev->object_name_lock));
-	if (obj->handle_count++ == 0)
-		drm_gem_object_get(obj);
+
+	drm_gem_object_handle_get(obj);
 
 	/*
 	 * Get the user-visible handle using idr.  Preload and perform

drivers/gpu/drm/drm_gem_framebuffer_helper.c

···
 	unsigned int i;
 
 	for (i = 0; i < fb->format->num_planes; i++)
-		drm_gem_object_put(fb->obj[i]);
+		drm_gem_object_handle_put_unlocked(fb->obj[i]);
 
 	drm_framebuffer_cleanup(fb);
 	kfree(fb);
···
 		if (!objs[i]) {
 			drm_dbg_kms(dev, "Failed to lookup GEM object\n");
 			ret = -ENOENT;
-			goto err_gem_object_put;
+			goto err_gem_object_handle_put_unlocked;
 		}
+		drm_gem_object_handle_get_unlocked(objs[i]);
+		drm_gem_object_put(objs[i]);
 
 		min_size = (height - 1) * mode_cmd->pitches[i]
 			 + drm_format_info_min_pitch(info, i, width)
···
 			drm_dbg_kms(dev,
 				    "GEM object size (%zu) smaller than minimum size (%u) for plane %d\n",
 				    objs[i]->size, min_size, i);
-			drm_gem_object_put(objs[i]);
+			drm_gem_object_handle_put_unlocked(objs[i]);
 			ret = -EINVAL;
-			goto err_gem_object_put;
+			goto err_gem_object_handle_put_unlocked;
 		}
 	}
 
 	ret = drm_gem_fb_init(dev, fb, mode_cmd, objs, i, funcs);
 	if (ret)
-		goto err_gem_object_put;
+		goto err_gem_object_handle_put_unlocked;
 
 	return 0;
 
-err_gem_object_put:
+err_gem_object_handle_put_unlocked:
 	while (i > 0) {
 		--i;
-		drm_gem_object_put(objs[i]);
+		drm_gem_object_handle_put_unlocked(objs[i]);
 	}
 	return ret;
 }

drivers/gpu/drm/drm_internal.h

···
 
 /* drm_gem.c */
 int drm_gem_init(struct drm_device *dev);
+void drm_gem_object_handle_get_unlocked(struct drm_gem_object *obj);
+void drm_gem_object_handle_put_unlocked(struct drm_gem_object *obj);
 int drm_gem_handle_create_tail(struct drm_file *file_priv,
 			       struct drm_gem_object *obj,
 			       u32 *handlep);

drivers/gpu/drm/drm_mipi_dsi.c

···
 	.restore = pm_generic_restore,
 };
 
-static const struct bus_type mipi_dsi_bus_type = {
+const struct bus_type mipi_dsi_bus_type = {
 	.name = "mipi-dsi",
 	.match = mipi_dsi_device_match,
 	.uevent = mipi_dsi_uevent,
 	.pm = &mipi_dsi_device_pm_ops,
 };
+EXPORT_SYMBOL_GPL(mipi_dsi_bus_type);
 
 /**
  * of_find_mipi_dsi_device_by_node() - find the MIPI DSI device matching a

drivers/gpu/drm/exynos/exynos7_drm_decon.c

···
 	if (!ctx->drm_dev)
 		goto out;
 
+	/* check if crtc and vblank have been initialized properly */
+	if (!drm_dev_has_vblank(ctx->drm_dev))
+		goto out;
+
 	if (!ctx->i80_if) {
 		drm_crtc_handle_vblank(&ctx->crtc->base);
 

drivers/gpu/drm/exynos/exynos_drm_fimd.c

···
 	u32				i80ifcon;
 	bool				i80_if;
 	bool				suspended;
+	bool				dp_clk_enabled;
 	wait_queue_head_t		wait_vsync_queue;
 	atomic_t			wait_vsync_event;
 	atomic_t			win_updated;
···
 	struct fimd_context *ctx = container_of(clk, struct fimd_context,
 						dp_clk);
 	u32 val = enable ? DP_MIE_CLK_DP_ENABLE : DP_MIE_CLK_DISABLE;
+
+	if (enable == ctx->dp_clk_enabled)
+		return;
+
+	if (enable)
+		pm_runtime_resume_and_get(ctx->dev);
+
+	ctx->dp_clk_enabled = enable;
 	writel(val, ctx->regs + DP_MIE_CLKCON);
+
+	if (!enable)
+		pm_runtime_put(ctx->dev);
 }
 
 static const struct exynos_drm_crtc_ops fimd_crtc_ops = {

drivers/gpu/drm/exynos/exynos_drm_gem.c

···
 		return ERR_PTR(ret);
 	}
 
-	DRM_DEV_DEBUG_KMS(dev->dev, "created file object = %pK\n", obj->filp);
+	DRM_DEV_DEBUG_KMS(dev->dev, "created file object = %p\n", obj->filp);
 
 	return exynos_gem;
 }

drivers/gpu/drm/exynos/exynos_drm_ipp.c

···
 	task->src.rect.h = task->dst.rect.h = UINT_MAX;
 	task->transform.rotation = DRM_MODE_ROTATE_0;
 
-	DRM_DEV_DEBUG_DRIVER(task->dev, "Allocated task %pK\n", task);
+	DRM_DEV_DEBUG_DRIVER(task->dev, "Allocated task %p\n", task);
 
 	return task;
 }
···
 	}
 
 	DRM_DEV_DEBUG_DRIVER(task->dev,
-			     "Got task %pK configuration from userspace\n",
+			     "Got task %p configuration from userspace\n",
 			     task);
 	return 0;
 }
···
 static void exynos_drm_ipp_task_free(struct exynos_drm_ipp *ipp,
 				 struct exynos_drm_ipp_task *task)
 {
-	DRM_DEV_DEBUG_DRIVER(task->dev, "Freeing task %pK\n", task);
+	DRM_DEV_DEBUG_DRIVER(task->dev, "Freeing task %p\n", task);
 
 	exynos_drm_ipp_task_release_buf(&task->src);
 	exynos_drm_ipp_task_release_buf(&task->dst);
···
 					    DRM_EXYNOS_IPP_FORMAT_DESTINATION);
 	if (!fmt) {
 		DRM_DEV_DEBUG_DRIVER(task->dev,
-				     "Task %pK: %s format not supported\n",
+				     "Task %p: %s format not supported\n",
 				     task, buf == src ? "src" : "dst");
 		return -EINVAL;
 	}
···
 	bool rotate = (rotation != DRM_MODE_ROTATE_0);
 	bool scale = false;
 
-	DRM_DEV_DEBUG_DRIVER(task->dev, "Checking task %pK\n", task);
+	DRM_DEV_DEBUG_DRIVER(task->dev, "Checking task %p\n", task);
 
 	if (src->rect.w == UINT_MAX)
 		src->rect.w = src->buf.width;
···
 	    dst->rect.x + dst->rect.w > (dst->buf.width) ||
 	    dst->rect.y + dst->rect.h > (dst->buf.height)) {
 		DRM_DEV_DEBUG_DRIVER(task->dev,
-				     "Task %pK: defined area is outside provided buffers\n",
+				     "Task %p: defined area is outside provided buffers\n",
 				     task);
 		return -EINVAL;
 	}
···
 	    (!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_SCALE) && scale) ||
 	    (!(ipp->capabilities & DRM_EXYNOS_IPP_CAP_CONVERT) &&
 	     src->buf.fourcc != dst->buf.fourcc)) {
-		DRM_DEV_DEBUG_DRIVER(task->dev, "Task %pK: hw capabilities exceeded\n",
+		DRM_DEV_DEBUG_DRIVER(task->dev, "Task %p: hw capabilities exceeded\n",
 				     task);
 		return -EINVAL;
 	}
···
 	if (ret)
 		return ret;
 
-	DRM_DEV_DEBUG_DRIVER(ipp->dev, "Task %pK: all checks done.\n",
+	DRM_DEV_DEBUG_DRIVER(ipp->dev, "Task %p: all checks done.\n",
 			     task);
 
 	return ret;
···
 	struct exynos_drm_ipp_buffer *src = &task->src, *dst = &task->dst;
 	int ret = 0;
 
-	DRM_DEV_DEBUG_DRIVER(task->dev, "Setting buffer for task %pK\n",
+	DRM_DEV_DEBUG_DRIVER(task->dev, "Setting buffer for task %p\n",
 			     task);
 
 	ret = exynos_drm_ipp_task_setup_buffer(src, filp);
 	if (ret) {
 		DRM_DEV_DEBUG_DRIVER(task->dev,
-				     "Task %pK: src buffer setup failed\n",
+				     "Task %p: src buffer setup failed\n",
 				     task);
 		return ret;
 	}
 	ret = exynos_drm_ipp_task_setup_buffer(dst, filp);
 	if (ret) {
 		DRM_DEV_DEBUG_DRIVER(task->dev,
-				     "Task %pK: dst buffer setup failed\n",
+				     "Task %p: dst buffer setup failed\n",
 				     task);
 		return ret;
 	}
 
-	DRM_DEV_DEBUG_DRIVER(task->dev, "Task %pK: buffers prepared.\n",
+	DRM_DEV_DEBUG_DRIVER(task->dev, "Task %p: buffers prepared.\n",
 			     task);
 
 	return ret;
···
 	struct exynos_drm_ipp *ipp = task->ipp;
 	unsigned long flags;
 
-	DRM_DEV_DEBUG_DRIVER(task->dev, "ipp: %d, task %pK done: %d\n",
+	DRM_DEV_DEBUG_DRIVER(task->dev, "ipp: %d, task %p done: %d\n",
 			     ipp->id, task, ret);
 
 	spin_lock_irqsave(&ipp->lock, flags);
···
 	spin_unlock_irqrestore(&ipp->lock, flags);
 
 	DRM_DEV_DEBUG_DRIVER(ipp->dev,
-			     "ipp: %d, selected task %pK to run\n", ipp->id,
+			     "ipp: %d, selected task %p to run\n", ipp->id,
 			     task);
 
 	ret = ipp->funcs->commit(ipp, task);
···
 	 */
 	if (arg->flags & DRM_EXYNOS_IPP_FLAG_NONBLOCK) {
 		DRM_DEV_DEBUG_DRIVER(ipp->dev,
-				     "ipp: %d, nonblocking processing task %pK\n",
+				     "ipp: %d, nonblocking processing task %p\n",
 				     ipp->id, task);
 
 		task->flags |= DRM_EXYNOS_IPP_TASK_ASYNC;
 		exynos_drm_ipp_schedule_task(task->ipp, task);
 		ret = 0;
 	} else {
-		DRM_DEV_DEBUG_DRIVER(ipp->dev, "ipp: %d, processing task %pK\n",
+		DRM_DEV_DEBUG_DRIVER(ipp->dev, "ipp: %d, processing task %p\n",
 				     ipp->id, task);
 		exynos_drm_ipp_schedule_task(ipp, task);
 		ret = wait_event_interruptible(ipp->done_wq,

drivers/gpu/drm/i915/display/vlv_dsi.c

···
 
 static void vlv_dphy_param_init(struct intel_dsi *intel_dsi)
 {
+	struct intel_display *display = to_intel_display(&intel_dsi->base);
 	struct intel_connector *connector = intel_dsi->attached_connector;
-	struct intel_display *display = to_intel_display(connector);
 	struct mipi_config *mipi_config = connector->panel.vbt.dsi.config;
 	u32 tlpx_ns, extra_byte_count, tlpx_ui;
 	u32 ui_num, ui_den;

drivers/gpu/drm/i915/gt/intel_gsc.c

···
 	if (gt->gsc.intf[intf_id].irq < 0)
 		return;
 
-	ret = generic_handle_irq(gt->gsc.intf[intf_id].irq);
+	ret = generic_handle_irq_safe(gt->gsc.intf[intf_id].irq);
 	if (ret)
 		gt_err_ratelimited(gt, "error handling GSC irq: %d\n", ret);
 }

drivers/gpu/drm/i915/gt/intel_ring_submission.c

···
 	/* One ringbuffer to rule them all */
 	GEM_BUG_ON(!engine->legacy.ring);
 	ce->ring = engine->legacy.ring;
-	ce->timeline = intel_timeline_get(engine->legacy.timeline);
 
 	GEM_BUG_ON(ce->state);
 	if (engine->context_size) {
···
 
 		ce->state = vma;
 	}
+
+	ce->timeline = intel_timeline_get(engine->legacy.timeline);
 
 	return 0;
 }

drivers/gpu/drm/i915/selftests/i915_request.c

···
 	/* Basic preliminary test to create a request and let it loose! */
 
 	request = mock_request(rcs0(i915)->kernel_context, HZ / 10);
-	if (!request)
-		return -ENOMEM;
+	if (IS_ERR(request))
+		return PTR_ERR(request);
 
 	i915_request_add(request);
 
···
 	/* Submit a request, then wait upon it */
 
 	request = mock_request(rcs0(i915)->kernel_context, T);
-	if (!request)
-		return -ENOMEM;
+	if (IS_ERR(request))
+		return PTR_ERR(request);
 
 	i915_request_get(request);
 
···
 	/* Submit a request, treat it as a fence and wait upon it */
 
 	request = mock_request(rcs0(i915)->kernel_context, T);
-	if (!request)
-		return -ENOMEM;
+	if (IS_ERR(request))
+		return PTR_ERR(request);
 
 	if (dma_fence_wait_timeout(&request->fence, false, T) != -ETIME) {
 		pr_err("fence wait success before submit (expected timeout)!\n");
···
 	GEM_BUG_ON(IS_ERR(ce));
 	request = mock_request(ce, 2 * HZ);
 	intel_context_put(ce);
-	if (!request) {
-		err = -ENOMEM;
+	if (IS_ERR(request)) {
+		err = PTR_ERR(request);
 		goto err_context_0;
 	}
 
···
 	GEM_BUG_ON(IS_ERR(ce));
 	vip = mock_request(ce, 0);
 	intel_context_put(ce);
-	if (!vip) {
-		err = -ENOMEM;
+	if (IS_ERR(vip)) {
+		err = PTR_ERR(vip);
 		goto err_context_1;
 	}
 

drivers/gpu/drm/i915/selftests/mock_request.c

···
 	/* NB the i915->requests slab cache is enlarged to fit mock_request */
 	request = intel_context_create_request(ce);
 	if (IS_ERR(request))
-		return NULL;
+		return request;
 
 	request->mock.delay = delay;
 	return request;

drivers/gpu/drm/panel/panel-simple.c

···
 #include <linux/i2c.h>
 #include <linux/media-bus-format.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
···
 
 	/** @connector_type: LVDS, eDP, DSI, DPI, etc. */
 	int connector_type;
+};
+
+struct panel_desc_dsi {
+	struct panel_desc desc;
+
+	unsigned long flags;
+	enum mipi_dsi_pixel_format format;
+	unsigned int lanes;
 };
 
 struct panel_simple {
···
 	.get_timings = panel_simple_get_timings,
 };
 
-static struct panel_desc panel_dpi;
-
-static int panel_dpi_probe(struct device *dev,
-			   struct panel_simple *panel)
+static struct panel_desc *panel_dpi_probe(struct device *dev)
 {
 	struct display_timing *timing;
 	const struct device_node *np;
···
 	np = dev->of_node;
 	desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
 	if (!desc)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
 	timing = devm_kzalloc(dev, sizeof(*timing), GFP_KERNEL);
 	if (!timing)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
 	ret = of_get_display_timing(np, "panel-timing", timing);
 	if (ret < 0) {
 		dev_err(dev, "%pOF: no panel-timing node found for \"panel-dpi\" binding\n",
 			np);
-		return ret;
+		return ERR_PTR(ret);
 	}
 
 	desc->timings = timing;
···
 	/* We do not know the connector for the DT node, so guess it */
 	desc->connector_type = DRM_MODE_CONNECTOR_DPI;
 
-	panel->desc = desc;
-
-	return 0;
+	return desc;
 }
 
 #define PANEL_SIMPLE_BOUNDS_CHECK(to_check, bounds, field) \
···
 	return 0;
 }
 
-static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
+static const struct panel_desc *panel_simple_get_desc(struct device *dev)
 {
+	if (IS_ENABLED(CONFIG_DRM_MIPI_DSI) &&
+	    dev_is_mipi_dsi(dev)) {
+		const struct panel_desc_dsi *dsi_desc;
+
+		dsi_desc = of_device_get_match_data(dev);
+		if (!dsi_desc)
+			return ERR_PTR(-ENODEV);
+
+		return &dsi_desc->desc;
+	}
+
+	if (dev_is_platform(dev)) {
+		const struct panel_desc *desc;
+
+		desc = of_device_get_match_data(dev);
+		if (!desc) {
+			/*
+			 * panel-dpi probes without a descriptor and
+			 * panel_dpi_probe() will initialize one for us
+			 * based on the device tree.
+			 */
+			if (of_device_is_compatible(dev->of_node, "panel-dpi"))
+				return panel_dpi_probe(dev);
+			else
+				return ERR_PTR(-ENODEV);
+		}
+
+		return desc;
+	}
+
+	return ERR_PTR(-ENODEV);
+}
+
+static struct panel_simple *panel_simple_probe(struct device *dev)
+{
+	const struct panel_desc *desc;
 	struct panel_simple *panel;
 	struct display_timing dt;
 	struct device_node *ddc;
···
 	u32 bus_flags;
 	int err;
 
+	desc = panel_simple_get_desc(dev);
+	if (IS_ERR(desc))
+		return ERR_CAST(desc);
+
 	panel = devm_drm_panel_alloc(dev, struct panel_simple, base,
 				     &panel_simple_funcs, desc->connector_type);
 	if (IS_ERR(panel))
-		return PTR_ERR(panel);
+		return ERR_CAST(panel);
 
 	panel->desc = desc;
 
 	panel->supply = devm_regulator_get(dev, "power");
 	if (IS_ERR(panel->supply))
-		return PTR_ERR(panel->supply);
+		return ERR_CAST(panel->supply);
 
 	panel->enable_gpio = devm_gpiod_get_optional(dev, "enable",
 						     GPIOD_OUT_LOW);
 	if (IS_ERR(panel->enable_gpio))
-		return dev_err_probe(dev, PTR_ERR(panel->enable_gpio),
-				     "failed to request GPIO\n");
+		return dev_err_cast_probe(dev, panel->enable_gpio,
+					  "failed to request GPIO\n");
 
 	err = of_drm_get_panel_orientation(dev->of_node, &panel->orientation);
 	if (err) {
 		dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
-		return err;
+		return ERR_PTR(err);
 	}
 
 	ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0);
···
 		of_node_put(ddc);
 
 		if (!panel->ddc)
-			return -EPROBE_DEFER;
+			return ERR_PTR(-EPROBE_DEFER);
 	}
 
-	if (desc == &panel_dpi) {
-		/* Handle the generic panel-dpi binding */
-		err = panel_dpi_probe(dev, panel);
-		if (err)
-			goto free_ddc;
-		desc = panel->desc;
-	} else {
-		if (!of_get_display_timing(dev->of_node, "panel-timing", &dt))
-			panel_simple_parse_panel_timing_node(dev, panel, &dt);
-	}
+	if (!of_device_is_compatible(dev->of_node, "panel-dpi") &&
+	    !of_get_display_timing(dev->of_node, "panel-timing", &dt))
+		panel_simple_parse_panel_timing_node(dev, panel, &dt);
 
 	if (desc->connector_type == DRM_MODE_CONNECTOR_LVDS) {
 		/* Optional data-mapping property for overriding bus format */
···
 
 	drm_panel_add(&panel->base);
 
-	return 0;
+	return panel;
 
 disable_pm_runtime:
 	pm_runtime_dont_use_autosuspend(dev);
···
 	if (panel->ddc)
 		put_device(&panel->ddc->dev);
 
-	return err;
+	return ERR_PTR(err);
 }
 
 static void panel_simple_shutdown(struct device *dev)
···
 	}, {
 		/* Must be the last entry */
 		.compatible = "panel-dpi",
-		.data = &panel_dpi,
+
+		/*
+		 * Explicitly NULL, the panel_desc structure will be
+		 * allocated by panel_dpi_probe().
+		 */
+		.data = NULL,
 	}, {
 		/* sentinel */
 	}
···
 
 static int panel_simple_platform_probe(struct platform_device *pdev)
 {
-	const struct panel_desc *desc;
+	struct panel_simple *panel;
 
-	desc = of_device_get_match_data(&pdev->dev);
-	if (!desc)
-		return -ENODEV;
+	panel = panel_simple_probe(&pdev->dev);
+	if (IS_ERR(panel))
+		return PTR_ERR(panel);
 
-	return panel_simple_probe(&pdev->dev, desc);
+	return 0;
 }
 
 static void panel_simple_platform_remove(struct platform_device *pdev)
···
 	.probe = panel_simple_platform_probe,
 	.remove = panel_simple_platform_remove,
 	.shutdown = panel_simple_platform_shutdown,
-};
-
-struct panel_desc_dsi {
-	struct panel_desc desc;
-
-	unsigned long flags;
-	enum mipi_dsi_pixel_format format;
-	unsigned int lanes;
 };
 
 static const struct drm_display_mode auo_b080uan01_mode = {
···
 static int panel_simple_dsi_probe(struct mipi_dsi_device *dsi)
 {
 	const struct panel_desc_dsi *desc;
+	struct panel_simple *panel;
 	int err;
 
-	desc = of_device_get_match_data(&dsi->dev);
-	if (!desc)
-		return -ENODEV;
+	panel = panel_simple_probe(&dsi->dev);
+	if (IS_ERR(panel))
+		return PTR_ERR(panel);
 
-	err = panel_simple_probe(&dsi->dev, &desc->desc);
-	if (err < 0)
-		return err;
-
+	desc = container_of(panel->desc, struct panel_desc_dsi, desc);
 	dsi->mode_flags = desc->flags;
 	dsi->format = desc->format;
 	dsi->lanes = desc->lanes;

drivers/gpu/drm/sysfb/vesadrm.c

···
 
 	if (!__screen_info_vbe_mode_nonvga(si)) {
 		vesa->cmap_write = vesadrm_vga_cmap_write;
-#if defined(CONFIG_X86_32)
 	} else {
+#if defined(CONFIG_X86_32)
 		phys_addr_t pmi_base = __screen_info_vesapm_info_base(si);
-		const u16 *pmi_addr = phys_to_virt(pmi_base);
 
-		vesa->pmi.PrimaryPalette = (u8 *)pmi_addr + pmi_addr[2];
-		vesa->cmap_write = vesadrm_pmi_cmap_write;
+		if (pmi_base) {
+			const u16 *pmi_addr = phys_to_virt(pmi_base);
+
+			vesa->pmi.PrimaryPalette = (u8 *)pmi_addr + pmi_addr[2];
+			vesa->cmap_write = vesadrm_pmi_cmap_write;
+		} else
 #endif
+		if (format->is_color_indexed)
+			drm_warn(dev, "hardware palette is unchangeable, colors may be incorrect\n");
 	}
 
 #ifdef CONFIG_X86

drivers/gpu/drm/ttm/ttm_bo_util.c

···
 	ret = dma_resv_trylock(&fbo->base.base._resv);
 	WARN_ON(!ret);
 
+	ret = dma_resv_reserve_fences(&fbo->base.base._resv, 1);
+	if (ret) {
+		dma_resv_unlock(&fbo->base.base._resv);
+		kfree(fbo);
+		return ret;
+	}
+
 	if (fbo->base.resource) {
 		ttm_resource_set_bo(fbo->base.resource, &fbo->base);
 		bo->resource = NULL;
 		ttm_bo_set_bulk_move(&fbo->base, NULL);
 	} else {
 		fbo->base.bulk_move = NULL;
-	}
-
-	ret = dma_resv_reserve_fences(&fbo->base.base._resv, 1);
-	if (ret) {
-		kfree(fbo);
-		return ret;
 	}
 
 	ttm_bo_get(bo);

drivers/gpu/drm/v3d/v3d_drv.h

···
 	V3D_GEN_71 = 71,
 };
 
+enum v3d_irq {
+	V3D_CORE_IRQ,
+	V3D_HUB_IRQ,
+	V3D_MAX_IRQS,
+};
+
 struct v3d_dev {
 	struct drm_device drm;
 
···
 	int rev;
 
 	bool single_irq_line;
+
+	int irq[V3D_MAX_IRQS];
 
 	struct v3d_perfmon_info perfmon_info;
 

drivers/gpu/drm/v3d/v3d_gem.c

···
 	if (false)
 		v3d_idle_axi(v3d, 0);
 
+	v3d_irq_disable(v3d);
+
 	v3d_idle_gca(v3d);
 	v3d_reset_sms(v3d);
 	v3d_reset_v3d(v3d);

drivers/gpu/drm/v3d/v3d_irq.c

···
 int
 v3d_irq_init(struct v3d_dev *v3d)
 {
-	int irq1, ret, core;
+	int irq, ret, core;
 
 	INIT_WORK(&v3d->overflow_mem_work, v3d_overflow_mem_work);
 
···
 		V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS(v3d->ver));
 	V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS(v3d->ver));
 
-	irq1 = platform_get_irq_optional(v3d_to_pdev(v3d), 1);
-	if (irq1 == -EPROBE_DEFER)
-		return irq1;
-	if (irq1 > 0) {
-		ret = devm_request_irq(v3d->drm.dev, irq1,
+	irq = platform_get_irq_optional(v3d_to_pdev(v3d), 1);
+	if (irq == -EPROBE_DEFER)
+		return irq;
+	if (irq > 0) {
+		v3d->irq[V3D_CORE_IRQ] = irq;
+
+		ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ],
 				       v3d_irq, IRQF_SHARED,
 				       "v3d_core0", v3d);
 		if (ret)
 			goto fail;
-		ret = devm_request_irq(v3d->drm.dev,
-				       platform_get_irq(v3d_to_pdev(v3d), 0),
+
+		irq = platform_get_irq(v3d_to_pdev(v3d), 0);
+		if (irq < 0)
+			return irq;
+		v3d->irq[V3D_HUB_IRQ] = irq;
+
+		ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_HUB_IRQ],
 				       v3d_hub_irq, IRQF_SHARED,
 				       "v3d_hub", v3d);
 		if (ret)
···
 	} else {
 		v3d->single_irq_line = true;
 
-		ret = devm_request_irq(v3d->drm.dev,
-				       platform_get_irq(v3d_to_pdev(v3d), 0),
+		irq = platform_get_irq(v3d_to_pdev(v3d), 0);
+		if (irq < 0)
+			return irq;
+		v3d->irq[V3D_CORE_IRQ] = irq;
+
+		ret = devm_request_irq(v3d->drm.dev, v3d->irq[V3D_CORE_IRQ],
 				       v3d_irq, IRQF_SHARED,
 				       "v3d", v3d);
 		if (ret)
···
 	for (core = 0; core < v3d->cores; core++)
 		V3D_CORE_WRITE(core, V3D_CTL_INT_MSK_SET, ~0);
 	V3D_WRITE(V3D_HUB_INT_MSK_SET, ~0);
+
+	/* Finish any interrupt handler still in flight. */
+	for (int i = 0; i < V3D_MAX_IRQS; i++) {
+		if (v3d->irq[i])
+			synchronize_irq(v3d->irq[i]);
+	}
 
 	/* Clear any pending interrupts we might have left. */
 	for (core = 0; core < v3d->cores; core++)

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

···
 		dev->fifo_mem = devm_memremap(dev->drm.dev,
 					      fifo_start,
 					      fifo_size,
-					      MEMREMAP_WB);
+					      MEMREMAP_WB | MEMREMAP_DEC);
 
 		if (IS_ERR(dev->fifo_mem)) {
 			drm_err(&dev->drm,

drivers/gpu/drm/xe/Kconfig

···
 # SPDX-License-Identifier: GPL-2.0-only
 config DRM_XE
-	tristate "Intel Xe Graphics"
-	depends on DRM && PCI && (m || (y && KUNIT=y))
+	tristate "Intel Xe2 Graphics"
+	depends on DRM && PCI
+	depends on KUNIT || !KUNIT
 	depends on INTEL_VSEC || !INTEL_VSEC
 	depends on X86_PLATFORM_DEVICES || !(X86 && ACPI)
 	select INTERVAL_TREE
···
 	select AUXILIARY_BUS
 	select HMM_MIRROR
 	help
-	  Experimental driver for Intel Xe series GPUs
+	  Driver for Intel Xe2 series GPUs and later. Experimental support
+	  for Xe series is also available.
 
 	  If "M" is selected, the module will be called xe.
 

drivers/gpu/drm/xe/xe_device.c

···
 #include "xe_gt_printk.h"
 #include "xe_gt_sriov_vf.h"
 #include "xe_guc.h"
+#include "xe_guc_pc.h"
 #include "xe_hw_engine_group.h"
 #include "xe_hwmon.h"
 #include "xe_irq.h"
···
 		xe_mmio_write32(xe_root_tile_mmio(xe), VF_CAP_REG, 0);
 }
 
-/**
- * xe_device_td_flush() - Flush transient L3 cache entries
- * @xe: The device
- *
- * Display engine has direct access to memory and is never coherent with L3/L4
- * caches (or CPU caches), however KMD is responsible for specifically flushing
- * transient L3 GPU cache entries prior to the flip sequence to ensure scanout
- * can happen from such a surface without seeing corruption.
- *
- * Display surfaces can be tagged as transient by mapping it using one of the
- * various L3:XD PAT index modes on Xe2.
- *
- * Note: On non-discrete xe2 platforms, like LNL, the entire L3 cache is flushed
- * at the end of each submission via PIPE_CONTROL for compute/render, since SA
- * Media is not coherent with L3 and we want to support render-vs-media
- * usescases. For other engines like copy/blt the HW internally forces uncached
- * behaviour, hence why we can skip the TDF on such platforms.
+/*
+ * Issue a TRANSIENT_FLUSH_REQUEST and wait for completion on each gt.
  */
-void xe_device_td_flush(struct xe_device *xe)
+static void tdf_request_sync(struct xe_device *xe)
 {
-	struct xe_gt *gt;
 	unsigned int fw_ref;
+	struct xe_gt *gt;
 	u8 id;
-
-	if (!IS_DGFX(xe) || GRAPHICS_VER(xe) < 20)
-		return;
-
-	if (XE_WA(xe_root_mmio_gt(xe), 16023588340)) {
-		xe_device_l2_flush(xe);
-		return;
-	}
 
 	for_each_gt(gt, xe, id) {
 		if (xe_gt_is_media_type(gt))
···
 			return;
 
 		xe_mmio_write32(&gt->mmio, XE2_TDF_CTRL, TRANSIENT_FLUSH_REQUEST);
+
 		/*
 		 * FIXME: We can likely do better here with our choice of
 		 * timeout. Currently we just assume the worst case, i.e. 150us,
···
 		return;
 
 	spin_lock(&gt->global_invl_lock);
-	xe_mmio_write32(&gt->mmio, XE2_GLOBAL_INVAL, 0x1);
 
+	xe_mmio_write32(&gt->mmio, XE2_GLOBAL_INVAL, 0x1);
 	if (xe_mmio_wait32(&gt->mmio, XE2_GLOBAL_INVAL, 0x1, 0x0, 500, NULL, true))
 		xe_gt_err_once(gt, "Global invalidation timeout\n");
+
 	spin_unlock(&gt->global_invl_lock);
 
 	xe_force_wake_put(gt_to_fw(gt), fw_ref);
+}
+
+/**
+ * xe_device_td_flush() - Flush transient L3 cache entries
+ * @xe: The device
+ *
+ * Display engine has direct access to memory and is never coherent with L3/L4
+ * caches (or CPU caches), however KMD is responsible for specifically flushing
+ * transient L3 GPU cache entries prior to the flip sequence to ensure scanout
+ * can happen from such a surface without seeing corruption.
+ *
+ * Display surfaces can be tagged as transient by mapping it using one of the
+ * various L3:XD PAT index modes on Xe2.
+ *
+ * Note: On non-discrete xe2 platforms, like LNL, the entire L3 cache is flushed
+ * at the end of each submission via PIPE_CONTROL for compute/render, since SA
+ * Media is not coherent with L3 and we want to support render-vs-media
+ * usescases. For other engines like copy/blt the HW internally forces uncached
+ * behaviour, hence why we can skip the TDF on such platforms.
+ */
+void xe_device_td_flush(struct xe_device *xe)
+{
+	struct xe_gt *root_gt;
+
+	if (!IS_DGFX(xe) || GRAPHICS_VER(xe) < 20)
+		return;
+
+	root_gt = xe_root_mmio_gt(xe);
+	if (XE_WA(root_gt, 16023588340)) {
+		/* A transient flush is not sufficient: flush the L2 */
+		xe_device_l2_flush(xe);
+	} else {
+		xe_guc_pc_apply_flush_freq_limit(&root_gt->uc.guc.pc);
+		tdf_request_sync(xe);
+		xe_guc_pc_remove_flush_freq_limit(&root_gt->uc.guc.pc);
+	}
 }
 
 u32 xe_device_ccs_bytes(struct xe_device *xe, u64 size)

drivers/gpu/drm/xe/xe_drv.h

···
 #include <drm/drm_drv.h>
 
 #define DRIVER_NAME		"xe"
-#define DRIVER_DESC		"Intel Xe Graphics"
+#define DRIVER_DESC		"Intel Xe2 Graphics"
 
 /* Interface history:
  *

drivers/gpu/drm/xe/xe_guc_pc.c

···
 
 #include "xe_guc_pc.h"
 
+#include <linux/cleanup.h>
 #include <linux/delay.h>
+#include <linux/jiffies.h>
 #include <linux/ktime.h>
+#include <linux/wait_bit.h>
 
 #include <drm/drm_managed.h>
 #include <drm/drm_print.h>
···
 
 #define LNL_MERT_FREQ_CAP	800
 #define BMG_MERT_FREQ_CAP	2133
+#define BMG_MIN_FREQ		1200
+#define BMG_MERT_FLUSH_FREQ_CAP	2600
 
 #define SLPC_RESET_TIMEOUT_MS 5 /* roughly 5ms, but no need for precision */
 #define SLPC_RESET_EXTENDED_TIMEOUT_MS 1000 /* To be used only at pc_start */
+#define SLPC_ACT_FREQ_TIMEOUT_MS 100
 
 /**
  * DOC: GuC Power Conservation (PC)
···
 	return -ETIMEDOUT;
 }
 
+static int wait_for_flush_complete(struct xe_guc_pc *pc)
+{
+	const unsigned long timeout = msecs_to_jiffies(30);
+
+	if (!wait_var_event_timeout(&pc->flush_freq_limit,
+				    !atomic_read(&pc->flush_freq_limit),
+				    timeout))
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int wait_for_act_freq_limit(struct xe_guc_pc *pc, u32 freq)
+{
+	int timeout_us = SLPC_ACT_FREQ_TIMEOUT_MS * USEC_PER_MSEC;
+	int slept, wait = 10;
+
+	for (slept = 0; slept < timeout_us;) {
+		if (xe_guc_pc_get_act_freq(pc) <= freq)
+			return 0;
+
+		usleep_range(wait, wait << 1);
+		slept += wait;
+		wait <<= 1;
+		if (slept + wait > timeout_us)
+			wait = timeout_us - slept;
+	}
+
+	return -ETIMEDOUT;
+}
 static int pc_action_reset(struct xe_guc_pc *pc)
 {
 	struct xe_guc_ct *ct = pc_to_ct(pc);
···
 	return pc->rpn_freq;
 }
 
+static int xe_guc_pc_get_min_freq_locked(struct xe_guc_pc *pc, u32 *freq)
+{
+	int ret;
+
+	lockdep_assert_held(&pc->freq_lock);
+
+	/* Might be in the middle of a gt reset */
+	if (!pc->freq_ready)
+		return -EAGAIN;
+
+	ret = pc_action_query_task_state(pc);
+	if (ret)
+		return ret;
+
+	*freq = pc_get_min_freq(pc);
+
+	return 0;
+}
+
 /**
  * xe_guc_pc_get_min_freq - Get the min operational frequency
  * @pc: The GuC PC
···
  */
 int xe_guc_pc_get_min_freq(struct xe_guc_pc *pc, u32 *freq)
 {
+	guard(mutex)(&pc->freq_lock);
+
+	return xe_guc_pc_get_min_freq_locked(pc, freq);
+}
+
+static int xe_guc_pc_set_min_freq_locked(struct xe_guc_pc *pc, u32 freq)
+{
 	int ret;
 
-	xe_device_assert_mem_access(pc_to_xe(pc));
+	lockdep_assert_held(&pc->freq_lock);
 
-	mutex_lock(&pc->freq_lock);
-	if (!pc->freq_ready) {
-		/* Might be in the middle of a gt reset */
-		ret = -EAGAIN;
-		goto out;
-	}
+	/* Might be in the middle of a gt reset */
+	if (!pc->freq_ready)
+		return -EAGAIN;
 
-	ret = pc_action_query_task_state(pc);
+	ret = pc_set_min_freq(pc, freq);
 	if (ret)
-		goto out;
+		return ret;
 
-	*freq = pc_get_min_freq(pc);
+	pc->user_requested_min = freq;
 
-out:
-	mutex_unlock(&pc->freq_lock);
-	return ret;
+	return 0;
 }
 
 /**
···
  */
 int xe_guc_pc_set_min_freq(struct xe_guc_pc *pc, u32 freq)
 {
+	guard(mutex)(&pc->freq_lock);
+
+	return xe_guc_pc_set_min_freq_locked(pc, freq);
+}
+
+static int xe_guc_pc_get_max_freq_locked(struct xe_guc_pc *pc, u32 *freq)
+{
 	int ret;
 
-	mutex_lock(&pc->freq_lock);
-	if (!pc->freq_ready) {
-		/* Might be in the middle of a gt reset */
-		ret = -EAGAIN;
-		goto out;
-	}
+	lockdep_assert_held(&pc->freq_lock);
 
-	ret = pc_set_min_freq(pc, freq);
+	/* Might be in the middle of a gt reset */
+	if (!pc->freq_ready)
+		return -EAGAIN;
+
+	ret = pc_action_query_task_state(pc);
 	if (ret)
-		goto out;
+		return ret;
 
-	pc->user_requested_min = freq;
+	*freq = pc_get_max_freq(pc);
 
-out:
-	mutex_unlock(&pc->freq_lock);
-	return ret;
+	return 0;
 }
 
 /**
···
  */
 int xe_guc_pc_get_max_freq(struct xe_guc_pc *pc, u32 *freq)
 {
+	guard(mutex)(&pc->freq_lock);
+
+	return xe_guc_pc_get_max_freq_locked(pc, freq);
+}
+
+static int xe_guc_pc_set_max_freq_locked(struct xe_guc_pc *pc, u32 freq)
+{
 	int ret;
 
-	mutex_lock(&pc->freq_lock);
-	if (!pc->freq_ready) {
-		/* Might be in the middle of a gt reset */
-		ret = -EAGAIN;
-		goto out;
-	}
+	lockdep_assert_held(&pc->freq_lock);
 
-	ret = pc_action_query_task_state(pc);
+	/* Might be in the middle of a gt reset */
+	if (!pc->freq_ready)
+		return -EAGAIN;
+
+	ret = pc_set_max_freq(pc, freq);
 	if (ret)
-		goto out;
+		return ret;
 
-	*freq = pc_get_max_freq(pc);
+	pc->user_requested_max = freq;
 
-out:
-	mutex_unlock(&pc->freq_lock);
-	return ret;
+	return 0;
 }
 
 /**
···
  */
 int xe_guc_pc_set_max_freq(struct xe_guc_pc *pc, u32 freq)
 {
-	int ret;
-
-	mutex_lock(&pc->freq_lock);
-	if (!pc->freq_ready) {
-		/* Might be in the middle of a gt reset */
-		ret = -EAGAIN;
-		goto out;
+	if (XE_WA(pc_to_gt(pc), 22019338487)) {
+		if (wait_for_flush_complete(pc) != 0)
+			return -EAGAIN;
 	}
 
-	ret = pc_set_max_freq(pc, freq);
-	if (ret)
-		goto out;
+	guard(mutex)(&pc->freq_lock);
 
-	pc->user_requested_max = freq;
-
-out:
-	mutex_unlock(&pc->freq_lock);
-	return ret;
+	return xe_guc_pc_set_max_freq_locked(pc, freq);
 }
 
 /**
···
 
 static int pc_adjust_freq_bounds(struct xe_guc_pc *pc)
 {
+	struct xe_tile *tile = gt_to_tile(pc_to_gt(pc));
 	int ret;
 
 	lockdep_assert_held(&pc->freq_lock);
···
 	if (pc_get_min_freq(pc) > pc->rp0_freq)
 		ret = pc_set_min_freq(pc, pc->rp0_freq);
 
+	if (XE_WA(tile->primary_gt, 14022085890))
+		ret = pc_set_min_freq(pc, max(BMG_MIN_FREQ, pc_get_min_freq(pc)));
+
 out:
 	return ret;
 }
···
 	return ret;
 }
 
-static int pc_set_mert_freq_cap(struct xe_guc_pc *pc)
+static bool needs_flush_freq_limit(struct xe_guc_pc *pc)
 {
+	struct xe_gt *gt = pc_to_gt(pc);
+
+	return  XE_WA(gt, 22019338487) &&
+		pc->rp0_freq > BMG_MERT_FLUSH_FREQ_CAP;
+}
+
+/**
+ * xe_guc_pc_apply_flush_freq_limit() - Limit max GT freq during L2 flush
+ * @pc: the xe_guc_pc object
+ *
+ * As per the WA, reduce max GT frequency during L2 cache flush
+ */
+void xe_guc_pc_apply_flush_freq_limit(struct xe_guc_pc *pc)
+{
+	struct xe_gt *gt = pc_to_gt(pc);
+	u32 max_freq;
+	int ret;
+
+	if (!needs_flush_freq_limit(pc))
+		return;
+
+	guard(mutex)(&pc->freq_lock);
+
+	ret = xe_guc_pc_get_max_freq_locked(pc, &max_freq);
+	if (!ret && max_freq > BMG_MERT_FLUSH_FREQ_CAP) {
+		ret = pc_set_max_freq(pc, BMG_MERT_FLUSH_FREQ_CAP);
+		if (ret) {
+			xe_gt_err_once(gt, "Failed to cap max freq on flush to %u, %pe\n",
+				       BMG_MERT_FLUSH_FREQ_CAP, ERR_PTR(ret));
+			return;
+		}
+
+		atomic_set(&pc->flush_freq_limit, 1);
+
+		/*
+		 * If user has previously changed max freq, stash that value to
+		 * restore later, otherwise use the current max. New user
+		 * requests wait on flush.
+		 */
+		if (pc->user_requested_max != 0)
+			pc->stashed_max_freq = pc->user_requested_max;
+		else
+			pc->stashed_max_freq = max_freq;
+	}
+
+	/*
+	 * Wait for actual freq to go below the flush cap: even if the previous
+	 * max was below cap, the current one might still be above it
+	 */
+	ret = wait_for_act_freq_limit(pc, BMG_MERT_FLUSH_FREQ_CAP);
+	if (ret)
+		xe_gt_err_once(gt, "Actual freq did not reduce to %u, %pe\n",
+			       BMG_MERT_FLUSH_FREQ_CAP, ERR_PTR(ret));
+}
+
+/**
+ * xe_guc_pc_remove_flush_freq_limit() - Remove max GT freq limit after L2 flush completes.
+ * @pc: the xe_guc_pc object
+ *
+ * Retrieve the previous GT max frequency value.
+ */
+void xe_guc_pc_remove_flush_freq_limit(struct xe_guc_pc *pc)
+{
+	struct xe_gt *gt = pc_to_gt(pc);
 	int ret = 0;
 
-	if (XE_WA(pc_to_gt(pc), 22019338487)) {
-		/*
-		 * Get updated min/max and stash them.
-		 */
-		ret = xe_guc_pc_get_min_freq(pc, &pc->stashed_min_freq);
-		if (!ret)
-			ret = xe_guc_pc_get_max_freq(pc, &pc->stashed_max_freq);
-		if (ret)
-			return ret;
+	if (!needs_flush_freq_limit(pc))
+		return;
 
-		/*
-		 * Ensure min and max are bound by MERT_FREQ_CAP until driver loads.
-		 */
-		mutex_lock(&pc->freq_lock);
-		ret = pc_set_min_freq(pc, min(pc->rpe_freq, pc_max_freq_cap(pc)));
-		if (!ret)
-			ret = pc_set_max_freq(pc, min(pc->rp0_freq, pc_max_freq_cap(pc)));
-		mutex_unlock(&pc->freq_lock);
-	}
+	if (!atomic_read(&pc->flush_freq_limit))
+		return;
+
+	mutex_lock(&pc->freq_lock);
+
+	ret = pc_set_max_freq(&gt->uc.guc.pc, pc->stashed_max_freq);
+	if (ret)
+		xe_gt_err_once(gt, "Failed to restore max freq %u:%d",
+			       pc->stashed_max_freq, ret);
+
+	atomic_set(&pc->flush_freq_limit, 0);
+	mutex_unlock(&pc->freq_lock);
+	wake_up_var(&pc->flush_freq_limit);
+}
+
+static int pc_set_mert_freq_cap(struct xe_guc_pc *pc)
+{
+	int ret;
+
+	if (!XE_WA(pc_to_gt(pc), 22019338487))
+		return 0;
+
+	guard(mutex)(&pc->freq_lock);
+
+	/*
+	 * Get updated min/max and stash them.
+	 */
+	ret = xe_guc_pc_get_min_freq_locked(pc, &pc->stashed_min_freq);
+	if (!ret)
+		ret = xe_guc_pc_get_max_freq_locked(pc, &pc->stashed_max_freq);
+	if (ret)
+		return ret;
+
+	/*
+	 * Ensure min and max are bound by MERT_FREQ_CAP until driver loads.
+	 */
+	ret = pc_set_min_freq(pc, min(pc->rpe_freq, pc_max_freq_cap(pc)));
+	if (!ret)
+		ret = pc_set_max_freq(pc, min(pc->rp0_freq, pc_max_freq_cap(pc)));
 
 	return ret;
 }

drivers/gpu/drm/xe/xe_guc_pc.h

···
 void xe_guc_pc_init_early(struct xe_guc_pc *pc);
 int xe_guc_pc_restore_stashed_freq(struct xe_guc_pc *pc);
 void xe_guc_pc_raise_unslice(struct xe_guc_pc *pc);
+void xe_guc_pc_apply_flush_freq_limit(struct xe_guc_pc *pc);
+void xe_guc_pc_remove_flush_freq_limit(struct xe_guc_pc *pc);
 
 #endif /* _XE_GUC_PC_H_ */

drivers/gpu/drm/xe/xe_guc_pc_types.h

···
 struct xe_guc_pc {
 	/** @bo: GGTT buffer object that is shared with GuC PC */
 	struct xe_bo *bo;
+	/** @flush_freq_limit: 1 when max freq changes are limited by driver */
+	atomic_t flush_freq_limit;
 	/** @rp0_freq: HW RP0 frequency - The Maximum one */
 	u32 rp0_freq;
 	/** @rpa_freq: HW RPa frequency - The Achievable one */

drivers/gpu/drm/xe/xe_guc_submit.c

···
 	struct xe_exec_queue *q = ge->q;
 	struct xe_guc *guc = exec_queue_to_guc(q);
 	struct xe_gpu_scheduler *sched = &ge->sched;
-	bool wedged;
+	bool wedged = false;
 
 	xe_gt_assert(guc_to_gt(guc), xe_exec_queue_is_lr(q));
 	trace_xe_exec_queue_lr_cleanup(q);
 
-	wedged = guc_submit_hint_wedged(exec_queue_to_guc(q));
+	if (!exec_queue_killed(q))
+		wedged = guc_submit_hint_wedged(exec_queue_to_guc(q));
 
 	/* Kill the run_job / process_msg entry points */
 	xe_sched_submission_stop(sched);
···
 	int err = -ETIME;
 	pid_t pid = -1;
 	int i = 0;
-	bool wedged, skip_timeout_check;
+	bool wedged = false, skip_timeout_check;
 
 	/*
 	 * TDR has fired before free job worker. Common if exec queue
···
 	 * doesn't work for SRIOV. For now assuming timeouts in wedged mode are
 	 * genuine timeouts.
 	 */
-	wedged = guc_submit_hint_wedged(exec_queue_to_guc(q));
+	if (!exec_queue_killed(q))
+		wedged = guc_submit_hint_wedged(exec_queue_to_guc(q));
 
 	/* Engine state now stable, disable scheduling to check timestamp */
 	if (!wedged && exec_queue_registered(q)) {

drivers/gpu/drm/xe/xe_lrc.c

···
 
 #define LRC_PPHWSP_SIZE				SZ_4K
 #define LRC_INDIRECT_RING_STATE_SIZE		SZ_4K
+#define LRC_WA_BB_SIZE				SZ_4K
 
 static struct xe_device *
 lrc_to_xe(struct xe_lrc *lrc)
···
 {
 	xe_hw_fence_ctx_finish(&lrc->fence_ctx);
 	xe_bo_unpin_map_no_vm(lrc->bo);
-	xe_bo_unpin_map_no_vm(lrc->bb_per_ctx_bo);
+}
+
+static size_t wa_bb_offset(struct xe_lrc *lrc)
+{
+	return lrc->bo->size - LRC_WA_BB_SIZE;
 }
 
 /*
···
 #define CONTEXT_ACTIVE 1ULL
 static int xe_lrc_setup_utilization(struct xe_lrc *lrc)
 {
+	const size_t max_size = LRC_WA_BB_SIZE;
 	u32 *cmd, *buf = NULL;
 
-	if (lrc->bb_per_ctx_bo->vmap.is_iomem) {
-		buf = kmalloc(lrc->bb_per_ctx_bo->size, GFP_KERNEL);
+	if (lrc->bo->vmap.is_iomem) {
+		buf = kmalloc(max_size, GFP_KERNEL);
 		if (!buf)
 			return -ENOMEM;
 		cmd = buf;
 	} else {
-		cmd = lrc->bb_per_ctx_bo->vmap.vaddr;
+		cmd = lrc->bo->vmap.vaddr + wa_bb_offset(lrc);
 	}
 
 	*cmd++ = MI_STORE_REGISTER_MEM | MI_SRM_USE_GGTT | MI_SRM_ADD_CS_OFFSET;
···
 	*cmd++ = MI_BATCH_BUFFER_END;
 
 	if (buf) {
-		xe_map_memcpy_to(gt_to_xe(lrc->gt), &lrc->bb_per_ctx_bo->vmap, 0,
-				 buf, (cmd - buf) * sizeof(*cmd));
+		xe_map_memcpy_to(gt_to_xe(lrc->gt), &lrc->bo->vmap,
+				 wa_bb_offset(lrc), buf,
+				 (cmd - buf) * sizeof(*cmd));
 		kfree(buf);
 	}
 
-	xe_lrc_write_ctx_reg(lrc, CTX_BB_PER_CTX_PTR,
-			     xe_bo_ggtt_addr(lrc->bb_per_ctx_bo) | 1);
+	xe_lrc_write_ctx_reg(lrc, CTX_BB_PER_CTX_PTR, xe_bo_ggtt_addr(lrc->bo) +
+			     wa_bb_offset(lrc) + 1);
 
 	return 0;
 }
···
 	 * FIXME: Perma-pinning LRC as we don't yet support moving GGTT address
 	 * via VM bind calls.
 	 */
-	lrc->bo = xe_bo_create_pin_map(xe, tile, NULL, lrc_size,
+	lrc->bo = xe_bo_create_pin_map(xe, tile, NULL,
+				       lrc_size + LRC_WA_BB_SIZE,
 				       ttm_bo_type_kernel,
 				       bo_flags);
 	if (IS_ERR(lrc->bo))
 		return PTR_ERR(lrc->bo);
-
-	lrc->bb_per_ctx_bo = xe_bo_create_pin_map(xe, tile, NULL, SZ_4K,
-						  ttm_bo_type_kernel,
-						  bo_flags);
-	if (IS_ERR(lrc->bb_per_ctx_bo)) {
-		err = PTR_ERR(lrc->bb_per_ctx_bo);
-		goto err_lrc_finish;
-	}
 
 	lrc->size = lrc_size;
 	lrc->ring.size = ring_size;
···
 	snapshot->seqno = xe_lrc_seqno(lrc);
 	snapshot->lrc_bo = xe_bo_get(lrc->bo);
 	snapshot->lrc_offset = xe_lrc_pphwsp_offset(lrc);
-	snapshot->lrc_size = lrc->bo->size - snapshot->lrc_offset;
+	snapshot->lrc_size = lrc->bo->size - snapshot->lrc_offset -
+		LRC_WA_BB_SIZE;
 	snapshot->lrc_snapshot = NULL;
 	snapshot->ctx_timestamp = lower_32_bits(xe_lrc_ctx_timestamp(lrc));
 	snapshot->ctx_job_timestamp = xe_lrc_ctx_job_timestamp(lrc);

drivers/gpu/drm/xe/xe_lrc_types.h

···
 
 	/** @ctx_timestamp: readout value of CTX_TIMESTAMP on last update */
 	u64 ctx_timestamp;
-
-	/** @bb_per_ctx_bo: buffer object for per context batch wa buffer */
-	struct xe_bo *bb_per_ctx_bo;
 };
 
 struct xe_lrc_snapshot;

drivers/gpu/drm/xe/xe_migrate.c

···
  * of the instruction.  Subtracting the instruction header (1 dword) and
  * address (2 dwords), that leaves 0x3FD dwords (0x1FE qwords) for PTE values.
  */
-#define MAX_PTE_PER_SDI 0x1FE
+#define MAX_PTE_PER_SDI 0x1FEU
 
 /**
  * xe_tile_migrate_exec_queue() - Get this tile's migrate exec queue.
···
 	u64 entries = DIV_U64_ROUND_UP(size, XE_PAGE_SIZE);
 
 	XE_WARN_ON(size > MAX_PREEMPTDISABLE_TRANSFER);
+
 	/*
 	 * MI_STORE_DATA_IMM command is used to update page table. Each
-	 * instruction can update maximumly 0x1ff pte entries. To update
-	 * n (n <= 0x1ff) pte entries, we need:
-	 * 1 dword for the MI_STORE_DATA_IMM command header (opcode etc)
-	 * 2 dword for the page table's physical location
-	 * 2*n dword for value of pte to fill (each pte entry is 2 dwords)
+	 * instruction can update maximumly MAX_PTE_PER_SDI pte entries. To
+	 * update n (n <= MAX_PTE_PER_SDI) pte entries, we need:
+	 *
+	 * - 1 dword for the MI_STORE_DATA_IMM command header (opcode etc)
+	 * - 2 dword for the page table's physical location
+	 * - 2*n dword for value of pte to fill (each pte entry is 2 dwords)
 	 */
-	num_dword = (1 + 2) * DIV_U64_ROUND_UP(entries, 0x1ff);
+	num_dword = (1 + 2) * DIV_U64_ROUND_UP(entries, MAX_PTE_PER_SDI);
 	num_dword += entries * 2;
 
 	return num_dword;
···
 
 	ptes = DIV_ROUND_UP(size, XE_PAGE_SIZE);
 	while (ptes) {
-		u32 chunk = min(0x1ffU, ptes);
+		u32 chunk = min(MAX_PTE_PER_SDI, ptes);
 
 		bb->cs[bb->len++] = MI_STORE_DATA_IMM | MI_SDI_NUM_QW(chunk);
 		bb->cs[bb->len++] = pt_offset;

drivers/gpu/drm/xe/xe_wa_oob.rules

···
 		GRAPHICS_VERSION_RANGE(1270, 1274)
 		MEDIA_VERSION(1300)
 		PLATFORM(DG2)
-14018094691	GRAPHICS_VERSION(2004)
[phone]	GRAPHICS_VERSION_RANGE(2001, 2002)
+		GRAPHICS_VERSION(2004)
 14019882105	GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0)
 18024947630	GRAPHICS_VERSION(2001)
 		GRAPHICS_VERSION(2004)
···
 		MEDIA_VERSION_RANGE(1301, 3000)
 16026508708	GRAPHICS_VERSION_RANGE(1200, 3001)
 		MEDIA_VERSION_RANGE(1300, 3000)
+
+# SoC workaround - currently applies to all platforms with the following
+# primary GT GMDID
[phone]	GRAPHICS_VERSION(2001)

drivers/hid/hid-appletb-kbd.c

···
 	ret = appletb_kbd_set_mode(kbd, appletb_tb_def_mode);
 	if (ret) {
 		dev_err_probe(dev, ret, "Failed to set touchbar mode\n");
-		goto close_hw;
+		goto unregister_handler;
 	}
 
 	hid_set_drvdata(hdev, kbd);
 
 	return 0;
 
+unregister_handler:
+	input_unregister_handler(&kbd->inp_handler);
 close_hw:
-	if (kbd->backlight_dev)
+	if (kbd->backlight_dev) {
 		put_device(&kbd->backlight_dev->dev);
+		timer_delete_sync(&kbd->inactivity_timer);
+	}
 	hid_hw_close(hdev);
 stop_hw:
 	hid_hw_stop(hdev);
···
 	appletb_kbd_set_mode(kbd, APPLETB_KBD_MODE_OFF);
 
 	input_unregister_handler(&kbd->inp_handler);
-	timer_delete_sync(&kbd->inactivity_timer);
-
-	if (kbd->backlight_dev)
+	if (kbd->backlight_dev) {
 		put_device(&kbd->backlight_dev->dev);
+		timer_delete_sync(&kbd->inactivity_timer);
+	}
 
 	hid_hw_close(hdev);
 	hid_hw_stop(hdev);

drivers/hid/hid-debug.c

···
 	[BTN_TOUCH] = "Touch",			[BTN_STYLUS] = "Stylus",
 	[BTN_STYLUS2] = "Stylus2",		[BTN_TOOL_DOUBLETAP] = "ToolDoubleTap",
 	[BTN_TOOL_TRIPLETAP] = "ToolTripleTap",	[BTN_TOOL_QUADTAP] = "ToolQuadrupleTap",
-	[BTN_GEAR_DOWN] = "WheelBtn",
-	[BTN_GEAR_UP] = "Gear up",		[KEY_OK] = "Ok",
+	[BTN_GEAR_DOWN] = "BtnGearDown",	[BTN_GEAR_UP] = "BtnGearUp",
+	[BTN_WHEEL] = "BtnWheel",		[KEY_OK] = "Ok",
 	[KEY_SELECT] = "Select",		[KEY_GOTO] = "Goto",
 	[KEY_CLEAR] = "Clear",			[KEY_POWER2] = "Power2",
 	[KEY_OPTION] = "Option",		[KEY_INFO] = "Info",

drivers/hid/hid-elecom.c

···
 		break;
 	case USB_DEVICE_ID_ELECOM_M_DT1URBK:
 	case USB_DEVICE_ID_ELECOM_M_DT1DRBK:
-	case USB_DEVICE_ID_ELECOM_M_HT1URBK:
+	case USB_DEVICE_ID_ELECOM_M_HT1URBK_010C:
+	case USB_DEVICE_ID_ELECOM_M_HT1URBK_019B:
 	case USB_DEVICE_ID_ELECOM_M_HT1DRBK_010D:
 		/*
 		 * Report descriptor format:
···
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK_010C) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK_019B) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK_010D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK_011C) },
 	{ }

drivers/hid/hid-ids.h

···
 #define USB_DEVICE_ID_ELECOM_M_XT4DRBK	0x00fd
 #define USB_DEVICE_ID_ELECOM_M_DT1URBK	0x00fe
 #define USB_DEVICE_ID_ELECOM_M_DT1DRBK	0x00ff
-#define USB_DEVICE_ID_ELECOM_M_HT1URBK	0x010c
+#define USB_DEVICE_ID_ELECOM_M_HT1URBK_010C	0x010c
+#define USB_DEVICE_ID_ELECOM_M_HT1URBK_019B	0x019b
 #define USB_DEVICE_ID_ELECOM_M_HT1DRBK_010D	0x010d
 #define USB_DEVICE_ID_ELECOM_M_HT1DRBK_011C	0x011c
 

drivers/hid/hid-quirks.c

···
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK_010C) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK_019B) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK_010D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK_011C) },
 #endif

drivers/i2c/busses/Kconfig

···
 
 config I2C_PIIX4
 	tristate "Intel PIIX4 and compatible (ATI/AMD/Serverworks/Broadcom/SMSC)"
-	depends on PCI && HAS_IOPORT && X86
+	depends on PCI && HAS_IOPORT
 	select I2C_SMBUS
 	help
 	  If you say yes to this option, support will be included for the Intel

drivers/i2c/busses/i2c-designware-master.c

···
 
 	dev->msgs = msgs;
 	dev->msgs_num = num_msgs;
+	dev->msg_write_idx = 0;
 	i2c_dw_xfer_init(dev);
 
 	/* Initiate messages read/write transaction */

drivers/i2c/busses/i2c-microchip-corei2c.c

···
 	u8 tx_buf[I2C_SMBUS_BLOCK_MAX + 2];
 	u8 rx_buf[I2C_SMBUS_BLOCK_MAX + 1];
 	int num_msgs = 1;
+	int ret;
 
 	msgs[CORE_I2C_SMBUS_MSG_WR].addr = addr;
 	msgs[CORE_I2C_SMBUS_MSG_WR].flags = 0;
···
 		return -EOPNOTSUPP;
 	}
 
-	mchp_corei2c_xfer(&idev->adapter, msgs, num_msgs);
+	ret = mchp_corei2c_xfer(&idev->adapter, msgs, num_msgs);
+	if (ret < 0)
+		return ret;
+
 	if (read_write == I2C_SMBUS_WRITE || size <= I2C_SMBUS_BYTE_DATA)
 		return 0;
 

drivers/i2c/busses/i2c-piix4.c

···
 #include <linux/dmi.h>
 #include <linux/acpi.h>
 #include <linux/io.h>
-#include <asm/amd/fch.h>
+#include <linux/platform_data/x86/amd-fch.h>
 
 #include "i2c-piix4.h"
 

drivers/infiniband/ulp/srp/ib_srp.c

···
 	target_host->max_id      = 1;
 	target_host->max_lun     = -1LL;
 	target_host->max_cmd_len = sizeof ((struct srp_cmd *) (void *) 0L)->cdb;
-	target_host->max_segment_size = ib_dma_max_seg_size(ibdev);
 
-	if (!(ibdev->attrs.kernel_cap_flags & IBK_SG_GAPS_REG))
+	if (ibdev->attrs.kernel_cap_flags & IBK_SG_GAPS_REG)
+		target_host->max_segment_size = ib_dma_max_seg_size(ibdev);
+	else
 		target_host->virt_boundary_mask = ~srp_dev->mr_page_mask;
 
 	target = host_to_target(target_host);

drivers/input/joystick/fsia6b.c

···
 	}
 	fsia6b->dev = input_dev;
 
-	snprintf(fsia6b->phys, sizeof(fsia6b->phys), "%s/input0", serio->phys);
+	scnprintf(fsia6b->phys, sizeof(fsia6b->phys), "%s/input0", serio->phys);
 
 	input_dev->name = DRIVER_DESC;
 	input_dev->phys = fsia6b->phys;

drivers/input/joystick/xpad.c

···
 	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
 	{ 0x05fe, 0x3030, "Chic Controller", 0, XTYPE_XBOX },
 	{ 0x05fe, 0x3031, "Chic Controller", 0, XTYPE_XBOX },
+	{ 0x0502, 0x1305, "Acer NGR200", 0, XTYPE_XBOX },
 	{ 0x062a, 0x0020, "Logic3 Xbox GamePad", 0, XTYPE_XBOX },
 	{ 0x062a, 0x0033, "Competition Pro Steering Wheel", 0, XTYPE_XBOX },
 	{ 0x06a3, 0x0200, "Saitek Racing Wheel", 0, XTYPE_XBOX },
···
 	XPAD_XBOX360_VENDOR(0x045e),		/* Microsoft Xbox 360 controllers */
 	XPAD_XBOXONE_VENDOR(0x045e),		/* Microsoft Xbox One controllers */
 	XPAD_XBOX360_VENDOR(0x046d),		/* Logitech Xbox 360-style controllers */
+	XPAD_XBOX360_VENDOR(0x0502),		/* Acer Inc. Xbox 360 style controllers */
 	XPAD_XBOX360_VENDOR(0x056e),		/* Elecom JC-U3613M */
 	XPAD_XBOX360_VENDOR(0x06a3),		/* Saitek P3600 */
 	XPAD_XBOX360_VENDOR(0x0738),		/* Mad Catz Xbox 360 controllers */
···
 		usb_anchor_urb(xpad->irq_out, &xpad->irq_out_anchor);
 		error = usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
 		if (error) {
-			dev_err(&xpad->intf->dev,
-				"%s - usb_submit_urb failed with result %d\n",
-				__func__, error);
+			if (error != -ENODEV)
+				dev_err(&xpad->intf->dev,
+					"%s - usb_submit_urb failed with result %d\n",
+					__func__, error);
 			usb_unanchor_urb(xpad->irq_out);
-			return -EIO;
+			return error;
 		}
 
 		xpad->irq_out_active = true;

drivers/input/keyboard/atkbd.c

···
 			 "AT %s Set %d keyboard",
 			 atkbd->translated ? "Translated" : "Raw", atkbd->set);
 
-	snprintf(atkbd->phys, sizeof(atkbd->phys),
-		 "%s/input0", atkbd->ps2dev.serio->phys);
+	scnprintf(atkbd->phys, sizeof(atkbd->phys),
+		  "%s/input0", atkbd->ps2dev.serio->phys);
 
 	input_dev->name = atkbd->name;
 	input_dev->phys = atkbd->phys;

drivers/input/misc/cs40l50-vibra.c

···
 	header.data_words = len / sizeof(u32);
 
 	new_owt_effect_data = kmalloc(sizeof(header) + len, GFP_KERNEL);
+	if (!new_owt_effect_data)
+		return -ENOMEM;
 
 	memcpy(new_owt_effect_data, &header, sizeof(header));
 	memcpy(new_owt_effect_data + sizeof(header), work_data->custom_data, len);

drivers/input/misc/gpio-beeper.c

···
 
 #ifdef CONFIG_OF
 static const struct of_device_id gpio_beeper_of_match[] = {
-	{ .compatible = BEEPER_MODNAME, },
+	{ .compatible = "gpio-beeper", },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, gpio_beeper_of_match);

drivers/input/misc/iqs626a.c

···
 		u8 *thresh = &sys_reg->tp_grp_reg.ch_reg_tp[i].thresh;
 		char tc_name[10];
 
-		snprintf(tc_name, sizeof(tc_name), "channel-%d", i);
+		scnprintf(tc_name, sizeof(tc_name), "channel-%d", i);
 
 		struct fwnode_handle *tc_node __free(fwnode_handle) =
 				fwnode_get_named_child_node(ch_node, tc_name);

drivers/input/misc/iqs7222.c

···
 	int allow_offset;
 	int event_offset;
 	int comms_offset;
+	int ext_chan;
 	bool legacy_gesture;
 	struct iqs7222_reg_grp_desc reg_grps[IQS7222_NUM_REG_GRPS];
 };
···
 		.allow_offset = 9,
 		.event_offset = 10,
 		.comms_offset = 12,
+		.ext_chan = 10,
 		.reg_grps = {
 			[IQS7222_REG_GRP_STAT] = {
 				.base = IQS7222_SYS_STATUS,
···
 		.allow_offset = 9,
 		.event_offset = 10,
 		.comms_offset = 12,
+		.ext_chan = 10,
 		.legacy_gesture = true,
 		.reg_grps = {
 			[IQS7222_REG_GRP_STAT] = {
···
 	const struct iqs7222_dev_desc *dev_desc = iqs7222->dev_desc;
 	struct i2c_client *client = iqs7222->client;
 	int num_chan = dev_desc->reg_grps[IQS7222_REG_GRP_CHAN].num_row;
-	int ext_chan = rounddown(num_chan, 10);
+	int ext_chan = dev_desc->ext_chan ? : num_chan;
 	int error, i;
 	u16 *chan_setup = iqs7222->chan_setup[chan_index];
 	u16 *sys_setup = iqs7222->sys_setup;
···
 	const struct iqs7222_dev_desc *dev_desc = iqs7222->dev_desc;
 	struct i2c_client *client = iqs7222->client;
 	int num_chan = dev_desc->reg_grps[IQS7222_REG_GRP_CHAN].num_row;
-	int ext_chan = rounddown(num_chan, 10);
+	int ext_chan = dev_desc->ext_chan ? : num_chan;
 	int count, error, reg_offset, i;
 	u16 *event_mask = &iqs7222->sys_setup[dev_desc->event_offset];
 	u16 *sldr_setup = iqs7222->sldr_setup[sldr_index];

drivers/input/mouse/alps.c

···
 		return -ENOMEM;
 	}
 
-	snprintf(priv->phys3, sizeof(priv->phys3), "%s/%s",
-		 psmouse->ps2dev.serio->phys,
-		 (priv->dev2 ? "input2" : "input1"));
+	scnprintf(priv->phys3, sizeof(priv->phys3), "%s/%s",
+		  psmouse->ps2dev.serio->phys,
+		  (priv->dev2 ? "input2" : "input1"));
 	dev3->phys = priv->phys3;
 
 	/*
···
 			goto init_fail;
 		}
 
-		snprintf(priv->phys2, sizeof(priv->phys2), "%s/input1",
-			 psmouse->ps2dev.serio->phys);
+		scnprintf(priv->phys2, sizeof(priv->phys2), "%s/input1",
+			  psmouse->ps2dev.serio->phys);
 		dev2->phys = priv->phys2;
 
 		/*

drivers/input/mouse/lifebook.c

···
 		goto err_out;
 
 	priv->dev2 = dev2;
-	snprintf(priv->phys, sizeof(priv->phys),
-		 "%s/input1", psmouse->ps2dev.serio->phys);
+	scnprintf(priv->phys, sizeof(priv->phys),
+		  "%s/input1", psmouse->ps2dev.serio->phys);
 
 	dev2->phys = priv->phys;
 	dev2->name = "LBPS/2 Fujitsu Lifebook Touchpad";

drivers/input/mouse/psmouse-base.c

···
 		 psmouse_pre_receive_byte, psmouse_receive_byte);
 	INIT_DELAYED_WORK(&psmouse->resync_work, psmouse_resync);
 	psmouse->dev = input_dev;
-	snprintf(psmouse->phys, sizeof(psmouse->phys), "%s/input0", serio->phys);
+	scnprintf(psmouse->phys, sizeof(psmouse->phys), "%s/input0", serio->phys);
 
 	psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
 

drivers/input/touchscreen/Kconfig

···
 
 config TOUCHSCREEN_APPLE_Z2
 	tristate "Apple Z2 touchscreens"
-	default ARCH_APPLE
 	depends on SPI && (ARCH_APPLE || COMPILE_TEST)
 	help
 	  Say Y here if you have an ARM Apple device with

drivers/input/touchscreen/melfas_mip4.c

···
 
 #ifdef CONFIG_OF
 static const struct of_device_id mip4_of_match[] = {
-	{ .compatible = "melfas,"MIP4_DEVICE_NAME, },
+	{ .compatible = "melfas,mip4_ts", },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, mip4_of_match);

drivers/iommu/intel/cache.c

···
 }
 
 /* Assign a cache tag with specified type to domain. */
-static int cache_tag_assign(struct dmar_domain *domain, u16 did,
-			    struct device *dev, ioasid_t pasid,
-			    enum cache_tag_type type)
+int cache_tag_assign(struct dmar_domain *domain, u16 did, struct device *dev,
+		     ioasid_t pasid, enum cache_tag_type type)
 {
 	struct device_domain_info *info = dev_iommu_priv_get(dev);
 	struct intel_iommu *iommu = info->iommu;

drivers/iommu/intel/iommu.c

···
 	    !pci_enable_pasid(to_pci_dev(dev), info->pasid_supported & ~1))
 		info->pasid_enabled = 1;
 
-	if (sm_supported(iommu) && !dev_is_real_dma_subdevice(dev))
+	if (sm_supported(iommu) && !dev_is_real_dma_subdevice(dev)) {
 		iommu_enable_pci_ats(info);
+		/* Assign a DEVTLB cache tag to the default domain. */
+		if (info->ats_enabled && info->domain) {
+			u16 did = domain_id_iommu(info->domain, iommu);
+
+			if (cache_tag_assign(info->domain, did, dev,
+					     IOMMU_NO_PASID, CACHE_TAG_DEVTLB))
+				iommu_disable_pci_ats(info);
+		}
+	}
 	iommu_enable_pci_pri(info);
 }
 

drivers/iommu/intel/iommu.h

···
 	unsigned int users;
 };
 
+int cache_tag_assign(struct dmar_domain *domain, u16 did, struct device *dev,
+		     ioasid_t pasid, enum cache_tag_type type);
 int cache_tag_assign_domain(struct dmar_domain *domain,
 			    struct device *dev, ioasid_t pasid);
 void cache_tag_unassign_domain(struct dmar_domain *domain,

drivers/iommu/rockchip-iommu.c

···
 		return -ENOMEM;
 
 	data->iommu = platform_get_drvdata(iommu_dev);
-	data->iommu->domain = &rk_identity_domain;
 	dev_iommu_priv_set(dev, data);
 
 	platform_device_put(iommu_dev);
···
 	iommu = devm_kzalloc(dev, sizeof(*iommu), GFP_KERNEL);
 	if (!iommu)
 		return -ENOMEM;
+
+	iommu->domain = &rk_identity_domain;
 
 	platform_set_drvdata(pdev, iommu);
 	iommu->dev = dev;

drivers/irqchip/Kconfig

···
 
 config IRQ_MSI_LIB
 	bool
+	select GENERIC_MSI_IRQ
 
 config ARMADA_370_XP_IRQ
 	bool

drivers/mtd/nand/qpic_common.c

···
 	bam_txn_buf += sizeof(*bam_txn);
 
 	bam_txn->bam_ce = bam_txn_buf;
-	bam_txn_buf +=
-		sizeof(*bam_txn->bam_ce) * QPIC_PER_CW_CMD_ELEMENTS * num_cw;
+	bam_txn->bam_ce_nitems = QPIC_PER_CW_CMD_ELEMENTS * num_cw;
+	bam_txn_buf += sizeof(*bam_txn->bam_ce) * bam_txn->bam_ce_nitems;
 
 	bam_txn->cmd_sgl = bam_txn_buf;
-	bam_txn_buf +=
-		sizeof(*bam_txn->cmd_sgl) * QPIC_PER_CW_CMD_SGL * num_cw;
+	bam_txn->cmd_sgl_nitems = QPIC_PER_CW_CMD_SGL * num_cw;
+	bam_txn_buf += sizeof(*bam_txn->cmd_sgl) * bam_txn->cmd_sgl_nitems;
 
 	bam_txn->data_sgl = bam_txn_buf;
+	bam_txn->data_sgl_nitems = QPIC_PER_CW_DATA_SGL * num_cw;
 
 	init_completion(&bam_txn->txn_done);
 
···
 	struct bam_transaction *bam_txn = nandc->bam_txn;
 	u32 offset;
 
+	if (bam_txn->bam_ce_pos + size > bam_txn->bam_ce_nitems) {
+		dev_err(nandc->dev, "BAM %s array is full\n", "CE");
+		return -EINVAL;
+	}
+
 	bam_ce_buffer = &bam_txn->bam_ce[bam_txn->bam_ce_pos];
 
 	/* fill the command desc */
···
 
 	/* use the separate sgl after this command */
 	if (flags & NAND_BAM_NEXT_SGL) {
+		if (bam_txn->cmd_sgl_pos >= bam_txn->cmd_sgl_nitems) {
+			dev_err(nandc->dev, "BAM %s array is full\n",
+				"CMD sgl");
+			return -EINVAL;
+		}
+
 		bam_ce_buffer = &bam_txn->bam_ce[bam_txn->bam_ce_start];
 		bam_ce_size = (bam_txn->bam_ce_pos -
 				bam_txn->bam_ce_start) *
···
 	struct bam_transaction *bam_txn = nandc->bam_txn;
 
 	if (read) {
+		if (bam_txn->rx_sgl_pos >= bam_txn->data_sgl_nitems) {
+			dev_err(nandc->dev, "BAM %s array is full\n", "RX sgl");
+			return -EINVAL;
+		}
+
 		sg_set_buf(&bam_txn->data_sgl[bam_txn->rx_sgl_pos],
 			   vaddr, size);
 		bam_txn->rx_sgl_pos++;
 	} else {
+		if (bam_txn->tx_sgl_pos >= bam_txn->data_sgl_nitems) {
+			dev_err(nandc->dev, "BAM %s array is full\n", "TX sgl");
+			return -EINVAL;
+		}
+
 		sg_set_buf(&bam_txn->data_sgl[bam_txn->tx_sgl_pos],
 			   vaddr, size);
 		bam_txn->tx_sgl_pos++;

drivers/net/ethernet/airoha/airoha_eth.c

···
 error_napi_stop:
 	for (i = 0; i < ARRAY_SIZE(eth->qdma); i++)
 		airoha_qdma_stop_napi(&eth->qdma[i]);
+	airoha_ppe_deinit(eth);
 error_hw_cleanup:
 	for (i = 0; i < ARRAY_SIZE(eth->qdma); i++)
 		airoha_hw_cleanup(&eth->qdma[i]);

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

···
 
 static int bnxt_request_irq(struct bnxt *bp)
 {
+	struct cpu_rmap *rmap = NULL;
 	int i, j, rc = 0;
 	unsigned long flags = 0;
-#ifdef CONFIG_RFS_ACCEL
-	struct cpu_rmap *rmap;
-#endif
 
 	rc = bnxt_setup_int_mode(bp);
 	if (rc) {
···
 		int map_idx = bnxt_cp_num_to_irq_num(bp, i);
 		struct bnxt_irq *irq = &bp->irq_tbl[map_idx];
 
-#ifdef CONFIG_RFS_ACCEL
-		if (rmap && bp->bnapi[i]->rx_ring) {
+		if (IS_ENABLED(CONFIG_RFS_ACCEL) &&
+		    rmap && bp->bnapi[i]->rx_ring) {
 			rc = irq_cpu_rmap_add(rmap, irq->vector);
 			if (rc)
 				netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n",
 					    j);
 			j++;
 		}
-#endif
+
 		rc = request_irq(irq->vector, irq->handler, flags, irq->name,
 				 bp->bnapi[i]);
 		if (rc)

drivers/net/ethernet/broadcom/genet/bcmgenet.c

···
 	for (i = 0; i <= priv->hw_params->rx_queues; i++)
 		priv->rx_rings[i].rx_max_coalesced_frames = 1;
 
+	/* Initialize u64 stats seq counter for 32bit machines */
+	for (i = 0; i <= priv->hw_params->rx_queues; i++)
+		u64_stats_init(&priv->rx_rings[i].stats64.syncp);
+	for (i = 0; i <= priv->hw_params->tx_queues; i++)
+		u64_stats_init(&priv->tx_rings[i].stats64.syncp);
+
 	/* libphy will determine the link state */
 	netif_carrier_off(dev);
 

drivers/net/ethernet/cavium/thunder/nicvf_main.c

···
 static int nicvf_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct nicvf *nic = netdev_priv(netdev);
-	int orig_mtu = netdev->mtu;
 
 	/* For now just support only the usual MTU sized frames,
 	 * plus some headroom for VLAN, QinQ.
···
 		return -EINVAL;
 	}
 
-	WRITE_ONCE(netdev->mtu, new_mtu);
-
-	if (!netif_running(netdev))
-		return 0;
-
-	if (nicvf_update_hw_max_frs(nic, new_mtu)) {
-		netdev->mtu = orig_mtu;
+	if (netif_running(netdev) && nicvf_update_hw_max_frs(nic, new_mtu))
 		return -EINVAL;
-	}
+
+	WRITE_ONCE(netdev->mtu, new_mtu);
 
 	return 0;
 }

drivers/net/ethernet/renesas/rtsn.c

···
 	priv = netdev_priv(ndev);
 	priv->pdev = pdev;
 	priv->ndev = ndev;
+
 	priv->ptp_priv = rcar_gen4_ptp_alloc(pdev);
+	if (!priv->ptp_priv) {
+		ret = -ENOMEM;
+		goto error_free;
+	}
 
 	spin_lock_init(&priv->lock);
 	platform_set_drvdata(pdev, priv);

drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c

···
 	}
 
 	/* TX/RX NORMAL interrupts */
-	if (likely(intr_status & XGMAC_NIS)) {
-		if (likely(intr_status & XGMAC_RI)) {
-			u64_stats_update_begin(&stats->syncp);
-			u64_stats_inc(&stats->rx_normal_irq_n[chan]);
-			u64_stats_update_end(&stats->syncp);
-			ret |= handle_rx;
-		}
-		if (likely(intr_status & (XGMAC_TI | XGMAC_TBU))) {
-			u64_stats_update_begin(&stats->syncp);
-			u64_stats_inc(&stats->tx_normal_irq_n[chan]);
-			u64_stats_update_end(&stats->syncp);
-			ret |= handle_tx;
-		}
+	if (likely(intr_status & XGMAC_RI)) {
+		u64_stats_update_begin(&stats->syncp);
+		u64_stats_inc(&stats->rx_normal_irq_n[chan]);
+		u64_stats_update_end(&stats->syncp);
+		ret |= handle_rx;
+	}
+	if (likely(intr_status & (XGMAC_TI | XGMAC_TBU))) {
+		u64_stats_update_begin(&stats->syncp);
+		u64_stats_inc(&stats->tx_normal_irq_n[chan]);
+		u64_stats_update_end(&stats->syncp);
+		ret |= handle_tx;
 	}
 
 	/* Clear interrupts */

drivers/net/ethernet/ti/am65-cpsw-nuss.c

···
 {
 	struct sk_buff *skb;
 
-	len += AM65_CPSW_HEADROOM;
-
 	skb = build_skb(page_addr, len);
 	if (unlikely(!skb))
 		return NULL;
···
 	}
 
 	skb = am65_cpsw_build_skb(page_addr, ndev,
-				  AM65_CPSW_MAX_PACKET_SIZE, headroom);
+				  PAGE_SIZE, headroom);
 	if (unlikely(!skb)) {
 		new_page = page;
 		goto requeue;

drivers/net/phy/qcom/at803x.c

···
 
 #define AT803X_LED_CONTROL			0x18
 
-#define AT803X_PHY_MMD3_WOL_CTRL		0x8012
-#define AT803X_WOL_EN				BIT(5)
-
 #define AT803X_REG_CHIP_CONFIG			0x1f
 #define AT803X_BT_BX_REG_SEL			0x8000
 
···
 		return ret;
 
 	return at803x_config_init(phydev);
-}
-
-static int at8031_set_wol(struct phy_device *phydev,
-			  struct ethtool_wolinfo *wol)
-{
-	int ret;
-
-	/* First setup MAC address and enable WOL interrupt */
-	ret = at803x_set_wol(phydev, wol);
-	if (ret)
-		return ret;
-
-	if (wol->wolopts & WAKE_MAGIC)
-		/* Enable WOL function for 1588 */
-		ret = phy_modify_mmd(phydev, MDIO_MMD_PCS,
-				     AT803X_PHY_MMD3_WOL_CTRL,
-				     0, AT803X_WOL_EN);
-	else
-		/* Disable WoL function for 1588 */
-		ret = phy_modify_mmd(phydev, MDIO_MMD_PCS,
-				     AT803X_PHY_MMD3_WOL_CTRL,
-				     AT803X_WOL_EN, 0);
-
-	return ret;
 }
 
 static int at8031_config_intr(struct phy_device *phydev)

drivers/net/phy/qcom/qca808x.c

···
 	.handle_interrupt	= at803x_handle_interrupt,
 	.get_tunable		= at803x_get_tunable,
 	.set_tunable		= at803x_set_tunable,
-	.set_wol		= at803x_set_wol,
+	.set_wol		= at8031_set_wol,
 	.get_wol		= at803x_get_wol,
 	.get_features		= qca808x_get_features,
 	.config_aneg		= qca808x_config_aneg,

drivers/net/phy/qcom/qcom-phy-lib.c

···
 }
 EXPORT_SYMBOL_GPL(at803x_set_wol);
 
+int at8031_set_wol(struct phy_device *phydev,
+		   struct ethtool_wolinfo *wol)
+{
+	int ret;
+
+	/* First setup MAC address and enable WOL interrupt */
+	ret = at803x_set_wol(phydev, wol);
+	if (ret)
+		return ret;
+
+	if (wol->wolopts & WAKE_MAGIC)
+		/* Enable WOL function for 1588 */
+		ret = phy_modify_mmd(phydev, MDIO_MMD_PCS,
+				     AT803X_PHY_MMD3_WOL_CTRL,
+				     0, AT803X_WOL_EN);
+	else
+		/* Disable WoL function for 1588 */
+		ret = phy_modify_mmd(phydev, MDIO_MMD_PCS,
+				     AT803X_PHY_MMD3_WOL_CTRL,
+				     AT803X_WOL_EN, 0);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(at8031_set_wol);
+
 void at803x_get_wol(struct phy_device *phydev,
 		    struct ethtool_wolinfo *wol)
 {

drivers/net/phy/qcom/qcom.h

···
 #define AT803X_LOC_MAC_ADDR_16_31_OFFSET	0x804B
 #define AT803X_LOC_MAC_ADDR_32_47_OFFSET	0x804A
 
+#define AT803X_PHY_MMD3_WOL_CTRL		0x8012
+#define AT803X_WOL_EN				BIT(5)
+
 #define AT803X_DEBUG_ADDR			0x1D
 #define AT803X_DEBUG_DATA			0x1E
 
···
 			  u16 clear, u16 set);
 int at803x_debug_reg_write(struct phy_device *phydev, u16 reg, u16 data);
 int at803x_set_wol(struct phy_device *phydev,
+		   struct ethtool_wolinfo *wol);
+int at8031_set_wol(struct phy_device *phydev,
 		   struct ethtool_wolinfo *wol);
 void at803x_get_wol(struct phy_device *phydev,
 		    struct ethtool_wolinfo *wol);

drivers/net/phy/smsc.c

···
 
 static int lan87xx_config_aneg(struct phy_device *phydev)
 {
-	int rc;
+	u8 mdix_ctrl;
 	int val;
+	int rc;
 
-	switch (phydev->mdix_ctrl) {
+	/* When auto-negotiation is disabled (forced mode), the PHY's
+	 * Auto-MDIX will continue toggling the TX/RX pairs.
+	 *
+	 * To establish a stable link, we must select a fixed MDI mode.
+	 * If the user has not specified a fixed MDI mode (i.e., mdix_ctrl is
+	 * 'auto'), we default to ETH_TP_MDI. This choice of a ETH_TP_MDI mode
+	 * mirrors the behavior the hardware would exhibit if the AUTOMDIX_EN
+	 * strap were configured for a fixed MDI connection.
+	 */
+	if (phydev->autoneg == AUTONEG_DISABLE) {
+		if (phydev->mdix_ctrl == ETH_TP_MDI_AUTO)
+			mdix_ctrl = ETH_TP_MDI;
+		else
+			mdix_ctrl = phydev->mdix_ctrl;
+	} else {
+		mdix_ctrl = phydev->mdix_ctrl;
+	}
+
+	switch (mdix_ctrl) {
 	case ETH_TP_MDI:
 		val = SPECIAL_CTRL_STS_OVRRD_AMDIX_;
 		break;
···
 			SPECIAL_CTRL_STS_AMDIX_STATE_;
 		break;
 	case ETH_TP_MDI_AUTO:
-		val = SPECIAL_CTRL_STS_AMDIX_ENABLE_;
+		val = SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
+			SPECIAL_CTRL_STS_AMDIX_ENABLE_;
 		break;
 	default:
 		return genphy_config_aneg(phydev);
···
 	rc |= val;
 	phy_write(phydev, SPECIAL_CTRL_STS, rc);
 
-	phydev->mdix = phydev->mdix_ctrl;
+	phydev->mdix = mdix_ctrl;
 	return genphy_config_aneg(phydev);
 }
 
···
 	return err;
 }
 EXPORT_SYMBOL_GPL(lan87xx_read_status);
+
+static int lan87xx_phy_config_init(struct phy_device *phydev)
+{
+	int rc;
+
+	/* The LAN87xx PHY's initial MDI-X mode is determined by the AUTOMDIX_EN
+	 * hardware strap, but the driver cannot read the strap's status. This
+	 * creates an unpredictable initial state.
+	 *
+	 * To ensure consistent and reliable behavior across all boards,
+	 * override the strap configuration on initialization and force the PHY
+	 * into a known state with Auto-MDIX enabled, which is the expected
+	 * default for modern hardware.
+	 */
+	rc = phy_modify(phydev, SPECIAL_CTRL_STS,
+			SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
+			SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
+			SPECIAL_CTRL_STS_AMDIX_STATE_,
+			SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
+			SPECIAL_CTRL_STS_AMDIX_ENABLE_);
+	if (rc < 0)
+		return rc;
+
+	phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
+
+	return smsc_phy_config_init(phydev);
+}
 
 static int lan874x_phy_config_init(struct phy_device *phydev)
 {
···
 
 	/* basic functions */
 	.read_status	= lan87xx_read_status,
-	.config_init	= smsc_phy_config_init,
+	.config_init	= lan87xx_phy_config_init,
 	.soft_reset	= smsc_phy_reset,
 	.config_aneg	= lan87xx_config_aneg,
 

drivers/nvme/host/core.c

···
 		nr->cmd->common.cdw12,
 		nr->cmd->common.cdw13,
 		nr->cmd->common.cdw14,
-		nr->cmd->common.cdw14);
+		nr->cmd->common.cdw15);
 }
 
 enum nvme_disposition {
···
 	struct nvme_ns *ns;
 	struct gendisk *disk;
 	int node = ctrl->numa_node;
+	bool last_path = false;
 
 	ns = kzalloc_node(sizeof(*ns), GFP_KERNEL, node);
 	if (!ns)
···
  out_unlink_ns:
 	mutex_lock(&ctrl->subsys->lock);
 	list_del_rcu(&ns->siblings);
-	if (list_empty(&ns->head->list))
+	if (list_empty(&ns->head->list)) {
 		list_del_init(&ns->head->entry);
+		/*
+		 * If multipath is not configured, we still create a namespace
+		 * head (nshead), but head->disk is not initialized in that
+		 * case.  As a result, only a single reference to nshead is held
+		 * (via kref_init()) when it is created. Therefore, ensure that
+		 * we do not release the reference to nshead twice if head->disk
+		 * is not present.
+		 */
+		if (ns->head->disk)
+			last_path = true;
+	}
 	mutex_unlock(&ctrl->subsys->lock);
+	if (last_path)
+		nvme_put_ns_head(ns->head);
 	nvme_put_ns_head(ns->head);
  out_cleanup_disk:
 	put_disk(disk);

drivers/nvme/host/multipath.c

···
 		nvme_cdev_del(&head->cdev, &head->cdev_device);
 		synchronize_srcu(&head->srcu);
 		del_gendisk(head->disk);
-		nvme_put_ns_head(head);
 	}
+	nvme_put_ns_head(head);
 }
 
 static void nvme_remove_head_work(struct work_struct *work)
···
 	 */
 	srcu_idx = srcu_read_lock(&head->srcu);
 
-	list_for_each_entry_rcu(ns, &head->list, siblings) {
+	list_for_each_entry_srcu(ns, &head->list, siblings,
+				 srcu_read_lock_held(&head->srcu)) {
 		/*
 		 * Ensure that ns path disk node is already added otherwise we
 		 * may get invalid kobj name for target
···
 void nvme_mpath_remove_disk(struct nvme_ns_head *head)
 {
 	bool remove = false;
+
+	if (!head->disk)
+		return;
 
 	mutex_lock(&head->subsys->lock);
 	/*

drivers/nvme/host/pci.c

···
 	if ((dev->cmbsz & (NVME_CMBSZ_WDS | NVME_CMBSZ_RDS)) ==
 			(NVME_CMBSZ_WDS | NVME_CMBSZ_RDS))
 		pci_p2pmem_publish(pdev, true);
-
-	nvme_update_attrs(dev);
 }
 
 static int nvme_set_host_mem(struct nvme_dev *dev, u32 bits)
···
 	if (result < 0)
 		goto out;
 
+	nvme_update_attrs(dev);
+
 	result = nvme_setup_io_queues(dev);
 	if (result)
 		goto out;
···
 	result = nvme_setup_host_mem(dev);
 	if (result < 0)
 		goto out_disable;
+
+	nvme_update_attrs(dev);
 
 	result = nvme_setup_io_queues(dev);
 	if (result)

drivers/nvme/target/nvmet.h

···
 {
 	if (bio != &req->b.inline_bio)
 		bio_put(bio);
+	else
+		bio_uninit(bio);
 }
 
 #ifdef CONFIG_NVME_TARGET_TCP_TLS

drivers/pinctrl/nuvoton/pinctrl-ma35.c

···
 	u32 idx = 0;
 	int ret;
 
-	for_each_gpiochip_node(dev, child) {
+	device_for_each_child_node(dev, child) {
+		if (fwnode_property_present(child, "gpio-controller"))
+			continue;
+
 		npctl->nfunctions++;
 		npctl->ngroups += of_get_child_count(to_of_node(child));
 	}
···
 	if (!npctl->groups)
 		return -ENOMEM;
 
-	for_each_gpiochip_node(dev, child) {
+	device_for_each_child_node(dev, child) {
+		if (fwnode_property_present(child, "gpio-controller"))
+			continue;
+
 		ret = ma35_pinctrl_parse_functions(child, npctl, idx++);
 		if (ret) {
 			fwnode_handle_put(child);

drivers/pinctrl/pinctrl-amd.c

···
 				  pin, is_suspend ? "suspend" : "hibernate");
 		}
 
+		/*
+		 * debounce enabled over suspend has shown issues with a GPIO
+		 * being unable to wake the system, as we're only interested in
+		 * the actual wakeup event, clear it.
+		 */
+		if (gpio_dev->saved_regs[i] & (DB_CNTRl_MASK << DB_CNTRL_OFF)) {
+			amd_gpio_set_debounce(gpio_dev, pin, 0);
+			pm_pr_dbg("Clearing debounce for GPIO #%d during %s.\n",
+				  pin, is_suspend ? "suspend" : "hibernate");
+		}
+
 		raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
 	}
 

drivers/pinctrl/pinctrl-aw9523.c

···
 	gc->set_config = gpiochip_generic_config;
 	gc->parent = dev;
 	gc->owner = THIS_MODULE;
-	gc->can_sleep = false;
+	gc->can_sleep = true;
 
 	return 0;
 }

drivers/pinctrl/qcom/pinctrl-msm.c

···
 	       test_bit(d->hwirq, pctrl->skip_wake_irqs);
 }
 
+static void msm_gpio_irq_init_valid_mask(struct gpio_chip *gc,
+					 unsigned long *valid_mask,
+					 unsigned int ngpios)
+{
+	struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
+	const struct msm_pingroup *g;
+	int i;
+
+	bitmap_fill(valid_mask, ngpios);
+
+	for (i = 0; i < ngpios; i++) {
+		g = &pctrl->soc->groups[i];
+
+		if (g->intr_detection_width != 1 &&
+		    g->intr_detection_width != 2)
+			clear_bit(i, valid_mask);
+	}
+}
+
 static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
···
 	girq->default_type = IRQ_TYPE_NONE;
 	girq->handler = handle_bad_irq;
 	girq->parents[0] = pctrl->irq;
+	girq->init_valid_mask = msm_gpio_irq_init_valid_mask;
 
 	ret = devm_gpiochip_add_data(pctrl->dev, &pctrl->chip, pctrl);
 	if (ret) {

drivers/platform/mellanox/mlxbf-pmc.c

···
 	{101, "GDC_BANK0_HIT_DCL_PARTIAL"},
 	{102, "GDC_BANK0_EVICT_DCL"},
 	{103, "GDC_BANK0_G_RSE_PIPE_CACHE_DATA0"},
-	{103, "GDC_BANK0_G_RSE_PIPE_CACHE_DATA1"},
+	{104, "GDC_BANK0_G_RSE_PIPE_CACHE_DATA1"},
 	{105, "GDC_BANK0_ARB_STRB"},
 	{106, "GDC_BANK0_ARB_WAIT"},
 	{107, "GDC_BANK0_GGA_STRB"},

drivers/platform/mellanox/mlxbf-tmfifo.c

···
 		vring->align = SMP_CACHE_BYTES;
 		vring->index = i;
 		vring->vdev_id = tm_vdev->vdev.id.device;
-		vring->drop_desc.len = VRING_DROP_DESC_MAX_LEN;
+		vring->drop_desc.len = cpu_to_virtio32(&tm_vdev->vdev,
+						       VRING_DROP_DESC_MAX_LEN);
 		dev = &tm_vdev->vdev.dev;
 
 		size = vring_size(vring->num, vring->align);
···
 		ether_addr_copy(mac, mlxbf_tmfifo_net_default_mac);
 }
 
-/* Set TmFifo thresolds which is used to trigger interrupts. */
+/* Set TmFifo thresholds which is used to trigger interrupts. */
 static void mlxbf_tmfifo_set_threshold(struct mlxbf_tmfifo *fifo)
 {
 	u64 ctl;

drivers/platform/mellanox/mlxreg-dpu.c

···
 							  mlxreg_dpu->io_data,
 							  sizeof(*mlxreg_dpu->io_data));
 		if (IS_ERR(mlxreg_dpu->io_regs)) {
-			dev_err(dev, "Failed to create regio for client %s at bus %d at addr 0x%02x\n",
+			dev_err(dev, "Failed to create region for client %s at bus %d at addr 0x%02x\n",
 				data->hpdev.brdinfo->type, data->hpdev.nr,
 				data->hpdev.brdinfo->addr);
 			return PTR_ERR(mlxreg_dpu->io_regs);

drivers/platform/mellanox/mlxreg-lc.c

···
  * @dev: platform device;
  * @lock: line card lock;
  * @par_regmap: parent device regmap handle;
- * @data: pltaform core data;
+ * @data: platform core data;
  * @io_data: register access platform data;
- * @led_data: LED platform data ;
+ * @led_data: LED platform data;
  * @mux_data: MUX platform data;
  * @led: LED device;
  * @io_regs: register access device;
···
 	0x4e, 0x4f
 };
 
-/* Defaul mux configuration. */
+/* Default mux configuration. */
 static struct mlxcpld_mux_plat_data mlxreg_lc_mux_data[] = {
 	{
 		.chan_ids = mlxreg_lc_chan,
···
 	},
 };
 
-/* Defaul mux board info. */
+/* Default mux board info. */
 static struct i2c_board_info mlxreg_lc_mux_brdinfo = {
 	I2C_BOARD_INFO("i2c-mux-mlxcpld", 0x32),
 };
···
 	if (regval & mlxreg_lc->data->mask) {
 		mlxreg_lc->state |= MLXREG_LC_SYNCED;
 		mlxreg_lc_state_update_locked(mlxreg_lc, MLXREG_LC_SYNCED, 1);
-		if (mlxreg_lc->state & ~MLXREG_LC_POWERED) {
+		if (!(mlxreg_lc->state & MLXREG_LC_POWERED)) {
 			err = mlxreg_lc_power_on_off(mlxreg_lc, 1);
 			if (err)
 				goto mlxreg_lc_regmap_power_on_off_fail;
···
 		platform_device_register_resndata(dev, "mlxreg-io", data->hpdev.nr, NULL, 0,
 						  mlxreg_lc->io_data, sizeof(*mlxreg_lc->io_data));
 		if (IS_ERR(mlxreg_lc->io_regs)) {
-			dev_err(dev, "Failed to create regio for client %s at bus %d at addr 0x%02x\n",
+			dev_err(dev, "Failed to create region for client %s at bus %d at addr 0x%02x\n",
 				data->hpdev.brdinfo->type, data->hpdev.nr,
 				data->hpdev.brdinfo->addr);
 			err = PTR_ERR(mlxreg_lc->io_regs);

drivers/platform/mellanox/nvsw-sn2201.c

···
 	if (!nvsw_sn2201->main_mux_devs->adapter) {
 		err = -ENODEV;
 		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus %d\n",
-			nvsw_sn2201->cpld_devs->nr);
+			nvsw_sn2201->main_mux_devs->nr);
 		goto i2c_get_adapter_main_fail;
 	}
 

drivers/platform/x86/amd/amd_isp4.c

···
 #define AMDISP_OV05C10_REMOTE_EP_NAME	"ov05c10_isp_4_1_1"
 #define AMD_ISP_PLAT_DRV_NAME		"amd-isp4"
 
+static const struct software_node isp4_mipi1_endpoint_node;
+static const struct software_node ov05c10_endpoint_node;
+
 /*
  * AMD ISP platform info definition to initialize sensor
  * specific platform configuration to prepare the amdisp
···
 	struct mutex lock;	/* protects i2c client creation */
 };
 
-/* Top-level OV05C10 camera node property table */
+/* Root AMD CAMERA SWNODE */
+
+/* Root amd camera node definition */
+static const struct software_node amd_camera_node = {
+	.name = "amd_camera",
+};
+
+/* ISP4 SWNODE */
+
+/* ISP4 OV05C10 camera node definition */
+static const struct software_node isp4_node = {
+	.name = "isp4",
+	.parent = &amd_camera_node,
+};
+
+/*
+ * ISP4 Ports node definition. No properties defined for
+ * ports node.
+ */
+static const struct software_node isp4_ports = {
+	.name = "ports",
+	.parent = &isp4_node,
+};
+
+/*
+ * ISP4 Port node definition. No properties defined for
+ * port node.
+ */
+static const struct software_node isp4_port_node = {
+	.name = "port@0",
+	.parent = &isp4_ports,
+};
+
+/*
+ * ISP4 MIPI1 remote endpoint points to OV05C10 endpoint
+ * node.
+ */
+static const struct software_node_ref_args isp4_refs[] = {
+	SOFTWARE_NODE_REFERENCE(&ov05c10_endpoint_node),
+};
+
+/* ISP4 MIPI1 endpoint node properties table */
+static const struct property_entry isp4_mipi1_endpoint_props[] = {
+	PROPERTY_ENTRY_REF_ARRAY("remote-endpoint", isp4_refs),
+	{ }
+};
+
+/* ISP4 MIPI1 endpoint node definition */
+static const struct software_node isp4_mipi1_endpoint_node = {
+	.name = "endpoint",
+	.parent = &isp4_port_node,
+	.properties = isp4_mipi1_endpoint_props,
+};
+
+/* I2C1 SWNODE */
+
+/* I2C1 camera node property table */
+static const struct property_entry i2c1_camera_props[] = {
+	PROPERTY_ENTRY_U32("clock-frequency", 1 * HZ_PER_MHZ),
+	{ }
+};
+
+/* I2C1 camera node definition */
+static const struct software_node i2c1_node = {
+	.name = "i2c1",
+	.parent = &amd_camera_node,
+	.properties = i2c1_camera_props,
+};
+
+/* I2C1 camera node property table */
 static const struct property_entry ov05c10_camera_props[] = {
 	PROPERTY_ENTRY_U32("clock-frequency", 24 * HZ_PER_MHZ),
 	{ }
 };
 
-/* Root AMD ISP OV05C10 camera node definition */
-static const struct software_node camera_node = {
+/* OV05C10 camera node definition */
+static const struct software_node ov05c10_camera_node = {
 	.name = AMDISP_OV05C10_HID,
+	.parent = &i2c1_node,
 	.properties = ov05c10_camera_props,
 };
 
 /*
- * AMD ISP OV05C10 Ports node definition. No properties defined for
+ * OV05C10 Ports node definition. No properties defined for
  * ports node for OV05C10.
  */
-static const struct software_node ports = {
+static const struct software_node ov05c10_ports = {
 	.name = "ports",
-	.parent = &camera_node,
+	.parent = &ov05c10_camera_node,
 };
 
 /*
- * AMD ISP OV05C10 Port node definition. No properties defined for
- * port node for OV05C10.
+ * OV05C10 Port node definition.
  */
-static const struct software_node port_node = {
-	.name = "port@",
-	.parent = &ports,
+static const struct software_node ov05c10_port_node = {
+	.name = "port@0",
+	.parent = &ov05c10_ports,
 };
 
 /*
- * Remote endpoint AMD ISP node definition. No properties defined for
- * remote endpoint node for OV05C10.
- */
-static const struct software_node remote_ep_isp_node = {
-	.name = AMDISP_OV05C10_REMOTE_EP_NAME,
-};
-
-/*
- * Remote endpoint reference for isp node included in the
- * OV05C10 endpoint.
+ * OV05C10 remote endpoint points to ISP4 MIPI1 endpoint
+ * node.
  */
 static const struct software_node_ref_args ov05c10_refs[] = {
-	SOFTWARE_NODE_REFERENCE(&remote_ep_isp_node),
+	SOFTWARE_NODE_REFERENCE(&isp4_mipi1_endpoint_node),
 };
 
 /* OV05C10 supports one single link frequency */
 static const u64 ov05c10_link_freqs[] = {
-	925 * HZ_PER_MHZ,
+	900 * HZ_PER_MHZ,
 };
 
 /* OV05C10 supports only 2-lane configuration */
···
 	{ }
 };
 
-/* AMD ISP endpoint node definition */
-static const struct software_node endpoint_node = {
+/* OV05C10 endpoint node definition */
+static const struct software_node ov05c10_endpoint_node = {
 	.name = "endpoint",
-	.parent = &port_node,
+	.parent = &ov05c10_port_node,
 	.properties = ov05c10_endpoint_props,
 };
 
 /*
- * AMD ISP swnode graph uses 5 nodes and also its relationship is
- * fixed to align with the structure that v4l2 expects for successful
- * endpoint fwnode parsing.
+ * AMD Camera swnode graph uses 10 nodes and also its relationship is
+ * fixed to align with the structure that v4l2 and i2c frameworks expects
+ * for successful parsing of fwnodes and its properties with standard names.
  *
  * It is only the node property_entries that will vary for each platform
  * supporting different sensor modules.
+ *
+ * AMD ISP4 SWNODE GRAPH Structure
+ *
+ * amd_camera {
+ *  isp4 {
+ *	  ports {
+ *		  port@0 {
+ *			  isp4_mipi1_ep: endpoint {
+ *					  remote-endpoint = &OMNI5C10_ep;
+ *			  };
+ *		  };
+ *	  };
+ *  };
+ *
+ *  i2c1 {
+ *	  clock-frequency = 1 MHz;
+ *	  OMNI5C10 {
+ *		  clock-frequency = 24MHz;
+ *		  ports {
+ *			  port@0 {
+ *				  OMNI5C10_ep: endpoint {
+ *					  bus-type = 4;
+ *					  data-lanes = <1 2>;
+ *					  link-frequencies = 900MHz;
+ *					  remote-endpoint = &isp4_mipi1;
+ *				  };
+ *			  };
+ *		  };
+ *	  };
+ *	};
+ * };
+ *
  */
-static const struct software_node *ov05c10_nodes[] = {
-	&camera_node,
-	&ports,
-	&port_node,
-	&endpoint_node,
-	&remote_ep_isp_node,
+static const struct software_node *amd_isp4_nodes[] = {
+	&amd_camera_node,
+	&isp4_node,
+	&isp4_ports,
+	&isp4_port_node,
+	&isp4_mipi1_endpoint_node,
+	&i2c1_node,
+	&ov05c10_camera_node,
+	&ov05c10_ports,
+	&ov05c10_port_node,
+	&ov05c10_endpoint_node,
 	NULL
 };
 
···
 		.dev_name = "ov05c10",
 		I2C_BOARD_INFO("ov05c10", AMDISP_OV05C10_I2C_ADDR),
 	},
-	.swnodes = ov05c10_nodes,
+	.swnodes = amd_isp4_nodes,
 };
 
 static const struct acpi_device_id amdisp_sensor_ids[] = {
···
 	if (ret)
 		return ERR_PTR(ret);
 
-	isp4_platform->board_info.swnode = src->swnodes[0];
+	/* initialize ov05c10_camera_node */
+	isp4_platform->board_info.swnode = src->swnodes[6];
 
 	return isp4_platform;
 }
···
 {
 	const struct amdisp_platform_info *pinfo;
 	struct amdisp_platform *isp4_platform;
+	struct acpi_device *adev;
 	int ret;
 
 	pinfo = device_get_match_data(&pdev->dev);
···
 	ret = bus_register_notifier(&i2c_bus_type, &isp4_platform->i2c_nb);
 	if (ret)
 		goto error_unregister_sw_node;
+
+	adev = ACPI_COMPANION(&pdev->dev);
+	/* initialize root amd_camera_node */
+	adev->driver_data = (void *)pinfo->swnodes[0];
 
 	/* check if adapter is already registered and create i2c client instance */
 	i2c_for_each_dev(isp4_platform, try_to_instantiate_i2c_client);

drivers/platform/x86/amd/pmc/pmc-quirks.c

···
 #include <linux/dmi.h>
 #include <linux/io.h>
 #include <linux/ioport.h>
-#include <asm/amd/fch.h>
+#include <linux/platform_data/x86/amd-fch.h>
 
 #include "pmc.h"
 

drivers/platform/x86/asus-nb-wmi.c

···
 		},
 		.driver_data = &quirk_asus_zenbook_duo_kbd,
 	},
+	{
+		.callback = dmi_matched,
+		.ident = "ASUS Zenbook Duo UX8406CA",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "UX8406CA"),
+		},
+		.driver_data = &quirk_asus_zenbook_duo_kbd,
+	},
 	{},
 };
 

drivers/platform/x86/dell/dell-lis3lv02d.c

···
 	 * Additional individual entries were added after verification.
 	 */
 	DELL_LIS3LV02D_DMI_ENTRY("Latitude 5480",      0x29),
+	DELL_LIS3LV02D_DMI_ENTRY("Latitude 5500",      0x29),
 	DELL_LIS3LV02D_DMI_ENTRY("Latitude E6330",     0x29),
 	DELL_LIS3LV02D_DMI_ENTRY("Latitude E6430",     0x29),
 	DELL_LIS3LV02D_DMI_ENTRY("Precision 3540",     0x29),

drivers/platform/x86/dell/dell-wmi-sysman/dell-wmi-sysman.h

···
 
 enum { ENUM, INT, STR, PO };
 
+#define ENUM_MIN_ELEMENTS		8
+#define INT_MIN_ELEMENTS		9
+#define STR_MIN_ELEMENTS		8
+#define PO_MIN_ELEMENTS			4
+
 enum {
 	ATTR_NAME,
 	DISPL_NAME_LANG_CODE,

drivers/platform/x86/dell/dell-wmi-sysman/enum-attributes.c

···
 	obj = get_wmiobj_pointer(instance_id, DELL_WMI_BIOS_ENUMERATION_ATTRIBUTE_GUID);
 	if (!obj)
 		return -EIO;
-	if (obj->package.elements[CURRENT_VAL].type != ACPI_TYPE_STRING) {
+	if (obj->type != ACPI_TYPE_PACKAGE || obj->package.count < ENUM_MIN_ELEMENTS ||
+	    obj->package.elements[CURRENT_VAL].type != ACPI_TYPE_STRING) {
 		kfree(obj);
-		return -EINVAL;
+		return -EIO;
 	}
 	ret = snprintf(buf, PAGE_SIZE, "%s\n", obj->package.elements[CURRENT_VAL].string.pointer);
 	kfree(obj);

drivers/platform/x86/dell/dell-wmi-sysman/int-attributes.c

···
 	obj = get_wmiobj_pointer(instance_id, DELL_WMI_BIOS_INTEGER_ATTRIBUTE_GUID);
 	if (!obj)
 		return -EIO;
-	if (obj->package.elements[CURRENT_VAL].type != ACPI_TYPE_INTEGER) {
+	if (obj->type != ACPI_TYPE_PACKAGE || obj->package.count < INT_MIN_ELEMENTS ||
+	    obj->package.elements[CURRENT_VAL].type != ACPI_TYPE_INTEGER) {
 		kfree(obj);
-		return -EINVAL;
+		return -EIO;
 	}
 	ret = snprintf(buf, PAGE_SIZE, "%lld\n", obj->package.elements[CURRENT_VAL].integer.value);
 	kfree(obj);

drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c

···
 	obj = get_wmiobj_pointer(instance_id, DELL_WMI_BIOS_PASSOBJ_ATTRIBUTE_GUID);
 	if (!obj)
 		return -EIO;
-	if (obj->package.elements[IS_PASS_SET].type != ACPI_TYPE_INTEGER) {
+	if (obj->type != ACPI_TYPE_PACKAGE || obj->package.count < PO_MIN_ELEMENTS ||
+	    obj->package.elements[IS_PASS_SET].type != ACPI_TYPE_INTEGER) {
 		kfree(obj);
-		return -EINVAL;
+		return -EIO;
 	}
 	ret = snprintf(buf, PAGE_SIZE, "%lld\n", obj->package.elements[IS_PASS_SET].integer.value);
 	kfree(obj);

drivers/platform/x86/dell/dell-wmi-sysman/string-attributes.c

···
 	obj = get_wmiobj_pointer(instance_id, DELL_WMI_BIOS_STRING_ATTRIBUTE_GUID);
 	if (!obj)
 		return -EIO;
-	if (obj->package.elements[CURRENT_VAL].type != ACPI_TYPE_STRING) {
+	if (obj->type != ACPI_TYPE_PACKAGE || obj->package.count < STR_MIN_ELEMENTS ||
+	    obj->package.elements[CURRENT_VAL].type != ACPI_TYPE_STRING) {
 		kfree(obj);
-		return -EINVAL;
+		return -EIO;
 	}
 	ret = snprintf(buf, PAGE_SIZE, "%s\n", obj->package.elements[CURRENT_VAL].string.pointer);
 	kfree(obj);

drivers/platform/x86/dell/dell-wmi-sysman/sysman.c

···
 		return retval;
 
 	switch (attr_type) {
-	case ENUM:	min_elements = 8;	break;
-	case INT:	min_elements = 9;	break;
-	case STR:	min_elements = 8;	break;
-	case PO:	min_elements = 4;	break;
+	case ENUM:	min_elements = ENUM_MIN_ELEMENTS;	break;
+	case INT:	min_elements = INT_MIN_ELEMENTS;	break;
+	case STR:	min_elements = STR_MIN_ELEMENTS;	break;
+	case PO:	min_elements = PO_MIN_ELEMENTS;		break;
 	default:
 		pr_err("Error: Unknown attr_type: %d\n", attr_type);
 		return -EINVAL;
···
 	release_attributes_data();
 
 err_destroy_classdev:
-	device_destroy(&firmware_attributes_class, MKDEV(0, 0));
+	device_unregister(wmi_priv.class_dev);
 
 err_exit_bios_attr_pass_interface:
 	exit_bios_attr_pass_interface();
···
 static void __exit sysman_exit(void)
 {
 	release_attributes_data();
-	device_destroy(&firmware_attributes_class, MKDEV(0, 0));
+	device_unregister(wmi_priv.class_dev);
 	exit_bios_attr_set_interface();
 	exit_bios_attr_pass_interface();
 }

drivers/platform/x86/hp/hp-bioscfg/bioscfg.c

···
 	release_attributes_data();
 
 err_destroy_classdev:
-	device_destroy(&firmware_attributes_class, MKDEV(0, 0));
+	device_unregister(bioscfg_drv.class_dev);
 
 err_unregister_class:
 	hp_exit_attr_set_interface();
···
 static void __exit hp_exit(void)
 {
 	release_attributes_data();
-	device_destroy(&firmware_attributes_class, MKDEV(0, 0));
+	device_unregister(bioscfg_drv.class_dev);
 
 	hp_exit_attr_set_interface();
 }

drivers/platform/x86/intel/hid.c

···
 	{ "INTC107B" },
 	{ "INTC10CB" },
 	{ "INTC10CC" },
+	{ "INTC10F1" },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, intel_hid_ids);

drivers/platform/x86/portwell-ec.c

···
 		return ret;
 	}
 
+	ec_wdt_dev.parent = &pdev->dev;
 	ret = devm_watchdog_register_device(&pdev->dev, &ec_wdt_dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to register Portwell EC Watchdog\n");

drivers/platform/x86/think-lmi.c

···
 	.is_visible = auth_attr_is_visible,
 	.attrs = auth_attrs,
 };
+__ATTRIBUTE_GROUPS(auth_attr);
 
 /* ---- Attributes sysfs --------------------------------------------------------- */
 static ssize_t display_name_show(struct kobject *kobj, struct kobj_attribute *attr,
···
 	.is_visible = attr_is_visible,
 	.attrs = tlmi_attrs,
 };
+__ATTRIBUTE_GROUPS(tlmi_attr);
 
 static void tlmi_attr_setting_release(struct kobject *kobj)
 {
···
 static const struct kobj_type tlmi_attr_setting_ktype = {
 	.release        = &tlmi_attr_setting_release,
 	.sysfs_ops	= &kobj_sysfs_ops,
+	.default_groups = tlmi_attr_groups,
 };
 
 static const struct kobj_type tlmi_pwd_setting_ktype = {
 	.release        = &tlmi_pwd_setting_release,
 	.sysfs_ops	= &kobj_sysfs_ops,
+	.default_groups = auth_attr_groups,
 };
 
 static ssize_t pending_reboot_show(struct kobject *kobj, struct kobj_attribute *attr,
···
 /* ---- Initialisation --------------------------------------------------------- */
 static void tlmi_release_attr(void)
 {
-	int i;
+	struct kobject *pos, *n;
 
 	/* Attribute structures */
-	for (i = 0; i < TLMI_SETTINGS_COUNT; i++) {
-		if (tlmi_priv.setting[i]) {
-			sysfs_remove_group(&tlmi_priv.setting[i]->kobj, &tlmi_attr_group);
-			kobject_put(&tlmi_priv.setting[i]->kobj);
-		}
-	}
 	sysfs_remove_file(&tlmi_priv.attribute_kset->kobj, &pending_reboot.attr);
 	sysfs_remove_file(&tlmi_priv.attribute_kset->kobj, &save_settings.attr);
 
 	if (tlmi_priv.can_debug_cmd && debug_support)
 		sysfs_remove_file(&tlmi_priv.attribute_kset->kobj, &debug_cmd.attr);
+
+	list_for_each_entry_safe(pos, n, &tlmi_priv.attribute_kset->list, entry)
+		kobject_put(pos);
 
 	kset_unregister(tlmi_priv.attribute_kset);
 
···
 	kfree(tlmi_priv.pwd_admin->save_signature);
 
 	/* Authentication structures */
-	sysfs_remove_group(&tlmi_priv.pwd_admin->kobj, &auth_attr_group);
-	kobject_put(&tlmi_priv.pwd_admin->kobj);
-	sysfs_remove_group(&tlmi_priv.pwd_power->kobj, &auth_attr_group);
-	kobject_put(&tlmi_priv.pwd_power->kobj);
-
-	if (tlmi_priv.opcode_support) {
-		sysfs_remove_group(&tlmi_priv.pwd_system->kobj, &auth_attr_group);
-		kobject_put(&tlmi_priv.pwd_system->kobj);
-		sysfs_remove_group(&tlmi_priv.pwd_hdd->kobj, &auth_attr_group);
-		kobject_put(&tlmi_priv.pwd_hdd->kobj);
-		sysfs_remove_group(&tlmi_priv.pwd_nvme->kobj, &auth_attr_group);
-		kobject_put(&tlmi_priv.pwd_nvme->kobj);
-	}
+	list_for_each_entry_safe(pos, n, &tlmi_priv.authentication_kset->list, entry)
+		kobject_put(pos);
 
 	kset_unregister(tlmi_priv.authentication_kset);
 }
···
 		goto fail_device_created;
 	}
 
+	tlmi_priv.authentication_kset = kset_create_and_add("authentication", NULL,
+							    &tlmi_priv.class_dev->kobj);
+	if (!tlmi_priv.authentication_kset) {
+		kset_unregister(tlmi_priv.attribute_kset);
+		ret = -ENOMEM;
+		goto fail_device_created;
+	}
+
 	for (i = 0; i < TLMI_SETTINGS_COUNT; i++) {
 		/* Check if index is a valid setting - skip if it isn't */
 		if (!tlmi_priv.setting[i])
···
 
 		/* Build attribute */
 		tlmi_priv.setting[i]->kobj.kset = tlmi_priv.attribute_kset;
-		ret = kobject_add(&tlmi_priv.setting[i]->kobj, NULL,
-				  "%s", tlmi_priv.setting[i]->display_name);
-		if (ret)
-			goto fail_create_attr;
-
-		ret = sysfs_create_group(&tlmi_priv.setting[i]->kobj, &tlmi_attr_group);
+		ret = kobject_init_and_add(&tlmi_priv.setting[i]->kobj, &tlmi_attr_setting_ktype,
+					   NULL, "%s", tlmi_priv.setting[i]->display_name);
 		if (ret)
 			goto fail_create_attr;
 	}
···
 	}
 
 	/* Create authentication entries */
-	tlmi_priv.authentication_kset = kset_create_and_add("authentication", NULL,
-								&tlmi_priv.class_dev->kobj);
-	if (!tlmi_priv.authentication_kset) {
-		ret = -ENOMEM;
-		goto fail_create_attr;
-	}
 	tlmi_priv.pwd_admin->kobj.kset = tlmi_priv.authentication_kset;
-	ret = kobject_add(&tlmi_priv.pwd_admin->kobj, NULL, "%s", "Admin");
-	if (ret)
-		goto fail_create_attr;
-
-	ret = sysfs_create_group(&tlmi_priv.pwd_admin->kobj, &auth_attr_group);
+	ret = kobject_init_and_add(&tlmi_priv.pwd_admin->kobj, &tlmi_pwd_setting_ktype,
+				   NULL, "%s", "Admin");
 	if (ret)
 		goto fail_create_attr;
 
 	tlmi_priv.pwd_power->kobj.kset = tlmi_priv.authentication_kset;
-	ret = kobject_add(&tlmi_priv.pwd_power->kobj, NULL, "%s", "Power-on");
-	if (ret)
-		goto fail_create_attr;
-
-	ret = sysfs_create_group(&tlmi_priv.pwd_power->kobj, &auth_attr_group);
+	ret = kobject_init_and_add(&tlmi_priv.pwd_power->kobj, &tlmi_pwd_setting_ktype,
+				   NULL, "%s", "Power-on");
 	if (ret)
 		goto fail_create_attr;
 
 	if (tlmi_priv.opcode_support) {
 		tlmi_priv.pwd_system->kobj.kset = tlmi_priv.authentication_kset;
-		ret = kobject_add(&tlmi_priv.pwd_system->kobj, NULL, "%s", "System");
-		if (ret)
-			goto fail_create_attr;
-
-		ret = sysfs_create_group(&tlmi_priv.pwd_system->kobj, &auth_attr_group);
+		ret = kobject_init_and_add(&tlmi_priv.pwd_system->kobj, &tlmi_pwd_setting_ktype,
+					   NULL, "%s", "System");
 		if (ret)
 			goto fail_create_attr;
 
 		tlmi_priv.pwd_hdd->kobj.kset = tlmi_priv.authentication_kset;
-		ret = kobject_add(&tlmi_priv.pwd_hdd->kobj, NULL, "%s", "HDD");
-		if (ret)
-			goto fail_create_attr;
-
-		ret = sysfs_create_group(&tlmi_priv.pwd_hdd->kobj, &auth_attr_group);
+		ret = kobject_init_and_add(&tlmi_priv.pwd_hdd->kobj, &tlmi_pwd_setting_ktype,
+					   NULL, "%s", "HDD");
 		if (ret)
 			goto fail_create_attr;
 
 		tlmi_priv.pwd_nvme->kobj.kset = tlmi_priv.authentication_kset;
-		ret = kobject_add(&tlmi_priv.pwd_nvme->kobj, NULL, "%s", "NVMe");
-		if (ret)
-			goto fail_create_attr;
-
-		ret = sysfs_create_group(&tlmi_priv.pwd_nvme->kobj, &auth_attr_group);
+		ret = kobject_init_and_add(&tlmi_priv.pwd_nvme->kobj, &tlmi_pwd_setting_ktype,
+					   NULL, "%s", "NVMe");
 		if (ret)
 			goto fail_create_attr;
 	}
···
 fail_create_attr:
 	tlmi_release_attr();
 fail_device_created:
-	device_destroy(&firmware_attributes_class, MKDEV(0, 0));
+	device_unregister(tlmi_priv.class_dev);
 fail_class_created:
 	return ret;
 }
···
 	new_pwd->minlen = tlmi_priv.pwdcfg.core.min_length;
 	new_pwd->maxlen = tlmi_priv.pwdcfg.core.max_length;
 	new_pwd->index = 0;
-
-	kobject_init(&new_pwd->kobj, &tlmi_pwd_setting_ktype);
 
 	return new_pwd;
 }
···
 		if (setting->possible_values)
 			strreplace(setting->possible_values, ',', ';');
 
-		kobject_init(&setting->kobj, &tlmi_attr_setting_ktype);
 		tlmi_priv.setting[i] = setting;
 		kfree(item);
 	}
···
 static void tlmi_remove(struct wmi_device *wdev)
 {
 	tlmi_release_attr();
-	device_destroy(&firmware_attributes_class, MKDEV(0, 0));
+	device_unregister(tlmi_priv.class_dev);
 }
 
 static int tlmi_probe(struct wmi_device *wdev, const void *context)

drivers/platform/x86/thinkpad_acpi.c

···
 	 */
 	{ KE_KEY, 0x131d, { KEY_VENDOR } }, /* System debug info, similar to old ThinkPad key */
 	{ KE_KEY, 0x1320, { KEY_LINK_PHONE } },
+	{ KE_KEY, 0x1402, { KEY_LINK_PHONE } },
 	{ KE_KEY, TP_HKEY_EV_TRACK_DOUBLETAP /* 0x8036 */, { KEY_PROG4 } },
 	{ KE_END }
 };

drivers/platform/x86/wmi.c

···
 	acpi_handle handle;
 	acpi_status status;
 
-	if (!(wblock->gblock.flags & ACPI_WMI_EXPENSIVE))
-		return 0;
-
 	if (wblock->dev.dev.type == &wmi_type_method)
 		return 0;
 
-	if (wblock->dev.dev.type == &wmi_type_event)
+	if (wblock->dev.dev.type == &wmi_type_event) {
+		/*
+		 * Windows always enables/disables WMI events, even when they are
+		 * not marked as being expensive. We follow this behavior for
+		 * compatibility reasons.
+		 */
 		snprintf(method, sizeof(method), "WE%02X", wblock->gblock.notify_id);
-	else
+	} else {
+		if (!(wblock->gblock.flags & ACPI_WMI_EXPENSIVE))
+			return 0;
+
 		get_acpi_method_name(wblock, 'C', method);
+	}
 
 	/*
 	 * Not all WMI devices marked as expensive actually implement the

drivers/powercap/intel_rapl_common.c

···
 {
 	struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone);
 	struct rapl_defaults *defaults = get_defaults(rd->rp);
+	u64 val;
 	int ret;
 
 	cpus_read_lock();
 	ret = rapl_write_pl_data(rd, POWER_LIMIT1, PL_ENABLE, mode);
-	if (!ret && defaults->set_floor_freq)
+	if (ret)
+		goto end;
+
+	ret = rapl_read_pl_data(rd, POWER_LIMIT1, PL_ENABLE, false, &val);
+	if (ret)
+		goto end;
+
+	if (mode != val) {
+		pr_debug("%s cannot be %s\n", power_zone->name,
+			 str_enabled_disabled(mode));
+		goto end;
+	}
+
+	if (defaults->set_floor_freq)
 		defaults->set_floor_freq(rd, mode);
+
+end:
 	cpus_read_unlock();
 
 	return ret;

drivers/pwm/core.c

···
 	 * and supposed to be ignored. So also ignore any strange values and
 	 * consider the state ok.
 	 */
-	if (state->enabled)
+	if (!state->enabled)
 		return true;
 
 	if (!state->period)

drivers/pwm/pwm-mediatek.c

···
 		return ret;
 
 	clk_rate = clk_get_rate(pc->clk_pwms[pwm->hwpwm]);
-	if (!clk_rate)
-		return -EINVAL;
+	if (!clk_rate) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	/* Make sure we use the bus clock and not the 26MHz clock */
 	if (pc->soc->has_ck_26m_sel)
···
 	}
 
 	if (clkdiv > PWM_CLK_DIV_MAX) {
-		pwm_mediatek_clk_disable(chip, pwm);
 		dev_err(pwmchip_parent(chip), "period of %d ns not supported\n", period_ns);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out;
 	}
 
 	if (pc->soc->pwm45_fixup && pwm->hwpwm > 2) {
···
 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_width, cnt_period);
 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_thres, cnt_duty);
 
+out:
 	pwm_mediatek_clk_disable(chip, pwm);
 
-	return 0;
+	return ret;
 }
 
 static int pwm_mediatek_enable(struct pwm_chip *chip, struct pwm_device *pwm)

drivers/regulator/core.c

···
 				 ERR_PTR(err));
 	}
 
+	rdev->coupling_desc.n_coupled = 0;
 	kfree(rdev->coupling_desc.coupled_rdevs);
 	rdev->coupling_desc.coupled_rdevs = NULL;
 }

drivers/regulator/gpio-regulator.c

···
 		return -ENOMEM;
 	}
 
-	drvdata->gpiods = devm_kzalloc(dev, sizeof(struct gpio_desc *),
-				       GFP_KERNEL);
+	drvdata->gpiods = devm_kcalloc(dev, config->ngpios,
+				       sizeof(struct gpio_desc *), GFP_KERNEL);
+	if (!drvdata->gpiods)
+		return -ENOMEM;
 
 	if (config->input_supply) {
 		drvdata->desc.supply_name = devm_kstrdup(&pdev->dev,
···
 		}
 	}
 
-	if (!drvdata->gpiods)
-		return -ENOMEM;
 	for (i = 0; i < config->ngpios; i++) {
 		drvdata->gpiods[i] = devm_gpiod_get_index(dev,
 							  NULL,

drivers/regulator/mp886x.c

···
 MODULE_DEVICE_TABLE(of, mp886x_dt_ids);
 
 static const struct i2c_device_id mp886x_id[] = {
-	{ "mp886x", (kernel_ulong_t)&mp8869_ci },
+	{ "mp8867", (kernel_ulong_t)&mp8867_ci },
+	{ "mp8869", (kernel_ulong_t)&mp8869_ci },
 	{ },
 };
 MODULE_DEVICE_TABLE(i2c, mp886x_id);

drivers/regulator/sy8824x.c

···
 MODULE_DEVICE_TABLE(of, sy8824_dt_ids);
 
 static const struct i2c_device_id sy8824_id[] = {
-	{ "sy8824", (kernel_ulong_t)&sy8824c_cfg },
+	{ "sy8824c", (kernel_ulong_t)&sy8824c_cfg },
+	{ "sy8824e", (kernel_ulong_t)&sy8824e_cfg },
+	{ "sy20276", (kernel_ulong_t)&sy20276_cfg },
+	{ "sy20278", (kernel_ulong_t)&sy20278_cfg },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, sy8824_id);

drivers/regulator/tps65219-regulator.c

···
 					     pmic->rdesc[i].name);
 	}
 
-	irq_data = devm_kmalloc(tps->dev, pmic->common_irq_size, GFP_KERNEL);
-	if (!irq_data)
-		return -ENOMEM;
-
 	for (i = 0; i < pmic->common_irq_size; ++i) {
 		irq_type = &pmic->common_irq_types[i];
 		irq = platform_get_irq_byname(pdev, irq_type->irq_name);
 		if (irq < 0)
 			return -EINVAL;
 
-		irq_data[i].dev = tps->dev;
-		irq_data[i].type = irq_type;
+		irq_data = devm_kmalloc(tps->dev, sizeof(*irq_data), GFP_KERNEL);
+		if (!irq_data)
+			return -ENOMEM;
+
+		irq_data->dev = tps->dev;
+		irq_data->type = irq_type;
 		error = devm_request_threaded_irq(tps->dev, irq, NULL,
 						  tps65219_regulator_irq_handler,
 						  IRQF_ONESHOT,
 						  irq_type->irq_name,
-						  &irq_data[i]);
+						  irq_data);
 		if (error)
 			return dev_err_probe(tps->dev, PTR_ERR(rdev),
 					     "Failed to request %s IRQ %d: %d\n",
 					     irq_type->irq_name, irq, error);
 	}
-
-	irq_data = devm_kmalloc(tps->dev, pmic->dev_irq_size, GFP_KERNEL);
-	if (!irq_data)
-		return -ENOMEM;
 
 	for (i = 0; i < pmic->dev_irq_size; ++i) {
 		irq_type = &pmic->irq_types[i];
···
 		if (irq < 0)
 			return -EINVAL;
 
-		irq_data[i].dev = tps->dev;
-		irq_data[i].type = irq_type;
+		irq_data = devm_kmalloc(tps->dev, sizeof(*irq_data), GFP_KERNEL);
+		if (!irq_data)
+			return -ENOMEM;
+
+		irq_data->dev = tps->dev;
+		irq_data->type = irq_type;
 		error = devm_request_threaded_irq(tps->dev, irq, NULL,
 						  tps65219_regulator_irq_handler,
 						  IRQF_ONESHOT,
 						  irq_type->irq_name,
-						  &irq_data[i]);
+						  irq_data);
 		if (error)
 			return dev_err_probe(tps->dev, PTR_ERR(rdev),
 					     "Failed to request %s IRQ %d: %d\n",

drivers/scsi/hosts.c

···
 	else
 		shost->max_sectors = SCSI_DEFAULT_MAX_SECTORS;
 
-	if (sht->max_segment_size)
-		shost->max_segment_size = sht->max_segment_size;
-	else
-		shost->max_segment_size = BLK_MAX_SEGMENT_SIZE;
+	shost->virt_boundary_mask = sht->virt_boundary_mask;
+	if (shost->virt_boundary_mask) {
+		WARN_ON_ONCE(sht->max_segment_size &&
+			     sht->max_segment_size != UINT_MAX);
+		shost->max_segment_size = UINT_MAX;
+	} else {
+		if (sht->max_segment_size)
+			shost->max_segment_size = sht->max_segment_size;
+		else
+			shost->max_segment_size = BLK_MAX_SEGMENT_SIZE;
+	}
 
 	/* 32-byte (dword) is a common minimum for HBAs. */
 	if (sht->dma_alignment)
···
 		shost->dma_boundary = sht->dma_boundary;
 	else
 		shost->dma_boundary = 0xffffffff;
-
-	if (sht->virt_boundary_mask)
-		shost->virt_boundary_mask = sht->virt_boundary_mask;
 
 	device_initialize(&shost->shost_gendev);
 	dev_set_name(&shost->shost_gendev, "host%d", shost->host_no);

drivers/scsi/qla2xxx/qla_mbx.c

···
 
 	pdb_dma = dma_map_single(&vha->hw->pdev->dev, pdb,
 	    sizeof(*pdb), DMA_FROM_DEVICE);
-	if (!pdb_dma) {
+	if (dma_mapping_error(&vha->hw->pdev->dev, pdb_dma)) {
 		ql_log(ql_log_warn, vha, 0x1116, "Failed to map dma buffer.\n");
 		return QLA_MEMORY_ALLOC_FAILED;
 	}

drivers/scsi/qla4xxx/ql4_os.c

···
 		task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data,
 						     task->data_count,
 						     DMA_TO_DEVICE);
+		if (dma_mapping_error(&ha->pdev->dev, task_data->data_dma))
+			return -ENOMEM;
 	}
 
 	DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n",

drivers/scsi/sd.c

···
 
 	rcu_read_lock();
 	vpd = rcu_dereference(sdkp->device->vpd_pgb7);
-	if (vpd && vpd->len >= 2)
+	if (vpd && vpd->len >= 6)
 		sdkp->rscs = vpd->data[5] & 1;
 	rcu_read_unlock();
 }

drivers/spi/spi-cadence-quadspi.c

···
 
 	pm_runtime_enable(dev);
 
-	if (cqspi->rx_chan) {
-		dma_release_channel(cqspi->rx_chan);
-		goto probe_setup_failed;
-	}
-
 	pm_runtime_set_autosuspend_delay(dev, CQSPI_AUTOSUSPEND_TIMEOUT);
 	pm_runtime_use_autosuspend(dev);
 	pm_runtime_get_noresume(dev);

drivers/spi/spi-fsl-dspi.c

···
 		if (dspi->devtype_data->trans_mode == DSPI_DMA_MODE) {
 			status = dspi_dma_xfer(dspi);
 		} else {
+			/*
+			 * Reinitialize the completion before transferring data
+			 * to avoid the case where it might remain in the done
+			 * state due to a spurious interrupt from a previous
+			 * transfer. This could falsely signal that the current
+			 * transfer has completed.
+			 */
+			if (dspi->irq)
+				reinit_completion(&dspi->xfer_done);
+
 			dspi_fifo_write(dspi);
 
 			if (dspi->irq) {
 				wait_for_completion(&dspi->xfer_done);
-				reinit_completion(&dspi->xfer_done);
 			} else {
 				do {
 					status = dspi_poll(dspi);

drivers/spi/spi-qpic-snand.c

···
 
 	mtd_set_ooblayout(mtd, &qcom_spi_ooblayout);
 
+	/*
+	 * Free the temporary BAM transaction allocated initially by
+	 * qcom_nandc_alloc(), and allocate a new one based on the
+	 * updated max_cwperpage value.
+	 */
+	qcom_free_bam_transaction(snandc);
+
+	snandc->max_cwperpage = cwperpage;
+
+	snandc->bam_txn = qcom_alloc_bam_transaction(snandc);
+	if (!snandc->bam_txn) {
+		dev_err(snandc->dev, "failed to allocate BAM transaction\n");
+		ret = -ENOMEM;
+		goto err_free_ecc_cfg;
+	}
+
 	ecc_cfg->cfg0 = FIELD_PREP(CW_PER_PAGE_MASK, (cwperpage - 1)) |
 			FIELD_PREP(UD_SIZE_BYTES_MASK, ecc_cfg->cw_data) |
 			FIELD_PREP(DISABLE_STATUS_AFTER_WRITE, 1) |

drivers/tee/optee/ffa_abi.c

···
 	return true;
 }
 
+static void notif_work_fn(struct work_struct *work)
+{
+	struct optee_ffa *optee_ffa = container_of(work, struct optee_ffa,
+						   notif_work);
+	struct optee *optee = container_of(optee_ffa, struct optee, ffa);
+
+	optee_do_bottom_half(optee->ctx);
+}
+
 static void notif_callback(int notify_id, void *cb_data)
 {
 	struct optee *optee = cb_data;
 
 	if (notify_id == optee->ffa.bottom_half_value)
-		optee_do_bottom_half(optee->ctx);
+		queue_work(optee->ffa.notif_wq, &optee->ffa.notif_work);
 	else
 		optee_notif_send(optee, notify_id);
 }
···
 	struct optee *optee = ffa_dev_get_drvdata(ffa_dev);
 	u32 bottom_half_id = optee->ffa.bottom_half_value;
 
-	if (bottom_half_id != U32_MAX)
+	if (bottom_half_id != U32_MAX) {
 		ffa_dev->ops->notifier_ops->notify_relinquish(ffa_dev,
 							      bottom_half_id);
+		destroy_workqueue(optee->ffa.notif_wq);
+	}
 	optee_remove_common(optee);
 
 	mutex_destroy(&optee->ffa.mutex);
···
 	bool is_per_vcpu = false;
 	u32 notif_id = 0;
 	int rc;
+
+	INIT_WORK(&optee->ffa.notif_work, notif_work_fn);
+	optee->ffa.notif_wq = create_workqueue("optee_notification");
+	if (!optee->ffa.notif_wq) {
+		rc = -EINVAL;
+		goto err;
+	}
 
 	while (true) {
 		rc = ffa_dev->ops->notifier_ops->notify_request(ffa_dev,
···
 		 * notifications in that case.
 		 */
 		if (rc != -EACCES)
-			return rc;
+			goto err_wq;
 		notif_id++;
 		if (notif_id >= OPTEE_FFA_MAX_ASYNC_NOTIF_VALUE)
-			return rc;
+			goto err_wq;
 	}
 	optee->ffa.bottom_half_value = notif_id;
 
 	rc = enable_async_notif(optee);
-	if (rc < 0) {
-		ffa_dev->ops->notifier_ops->notify_relinquish(ffa_dev,
-							      notif_id);
-		optee->ffa.bottom_half_value = U32_MAX;
-	}
+	if (rc < 0)
+		goto err_rel;
+
+	return 0;
+err_rel:
+	ffa_dev->ops->notifier_ops->notify_relinquish(ffa_dev, notif_id);
+err_wq:
+	destroy_workqueue(optee->ffa.notif_wq);
+err:
+	optee->ffa.bottom_half_value = U32_MAX;
 
 	return rc;
 }

drivers/tee/optee/optee_private.h

···
 	/* Serializes access to @global_ids */
 	struct mutex mutex;
 	struct rhashtable global_ids;
+	struct workqueue_struct *notif_wq;
+	struct work_struct notif_work;
 };
 
 struct optee;

drivers/ufs/core/ufs-sysfs.c

···
 UFS_UNIT_DESC_PARAM(logical_block_count, _LOGICAL_BLK_COUNT, 8);
 UFS_UNIT_DESC_PARAM(erase_block_size, _ERASE_BLK_SIZE, 4);
 UFS_UNIT_DESC_PARAM(provisioning_type, _PROVISIONING_TYPE, 1);
-UFS_UNIT_DESC_PARAM(physical_memory_resourse_count, _PHY_MEM_RSRC_CNT, 8);
+UFS_UNIT_DESC_PARAM(physical_memory_resource_count, _PHY_MEM_RSRC_CNT, 8);
 UFS_UNIT_DESC_PARAM(context_capabilities, _CTX_CAPABILITIES, 2);
 UFS_UNIT_DESC_PARAM(large_unit_granularity, _LARGE_UNIT_SIZE_M1, 1);
 UFS_UNIT_DESC_PARAM(wb_buf_alloc_units, _WB_BUF_ALLOC_UNITS, 4);
···
 	&dev_attr_logical_block_count.attr,
 	&dev_attr_erase_block_size.attr,
 	&dev_attr_provisioning_type.attr,
-	&dev_attr_physical_memory_resourse_count.attr,
+	&dev_attr_physical_memory_resource_count.attr,
 	&dev_attr_context_capabilities.attr,
 	&dev_attr_large_unit_granularity.attr,
 	&dev_attr_wb_buf_alloc_units.attr,

drivers/usb/cdns3/cdnsp-debug.h

···
 	case TRB_RESET_EP:
 	case TRB_HALT_ENDPOINT:
 		ret = scnprintf(str, size,
-				"%s: ep%d%s(%d) ctx %08x%08x slot %ld flags %c",
+				"%s: ep%d%s(%d) ctx %08x%08x slot %ld flags %c %c",
 				cdnsp_trb_type_string(type),
 				ep_num, ep_id % 2 ? "out" : "in",
 				TRB_TO_EP_INDEX(field3), field1, field0,
 				TRB_TO_SLOT_ID(field3),
-				field3 & TRB_CYCLE ? 'C' : 'c');
+				field3 & TRB_CYCLE ? 'C' : 'c',
+				field3 & TRB_ESP ? 'P' : 'p');
 		break;
 	case TRB_STOP_RING:
 		ret = scnprintf(str, size,

drivers/usb/cdns3/cdnsp-ep0.c

···
 void cdnsp_setup_analyze(struct cdnsp_device *pdev)
 {
 	struct usb_ctrlrequest *ctrl = &pdev->setup;
+	struct cdnsp_ep *pep;
 	int ret = -EINVAL;
 	u16 len;
 
···
 		goto out;
 	}
 
+	pep = &pdev->eps[0];
+
 	/* Restore the ep0 to Stopped/Running state. */
-	if (pdev->eps[0].ep_state & EP_HALTED) {
-		trace_cdnsp_ep0_halted("Restore to normal state");
-		cdnsp_halt_endpoint(pdev, &pdev->eps[0], 0);
+	if (pep->ep_state & EP_HALTED) {
+		if (GET_EP_CTX_STATE(pep->out_ctx) == EP_STATE_HALTED)
+			cdnsp_halt_endpoint(pdev, pep, 0);
+
+		/*
+		 * Halt Endpoint Command for SSP2 for ep0 preserve current
+		 * endpoint state and driver has to synchronize the
+		 * software endpoint state with endpoint output context
+		 * state.
+		 */
+		pep->ep_state &= ~EP_HALTED;
+		pep->ep_state |= EP_STOPPED;
 	}
 
 	/*

drivers/usb/cdns3/cdnsp-gadget.h

···
 #define STREAM_ID_FOR_TRB(p)		((((p)) << 16) & GENMASK(31, 16))
 #define SCT_FOR_TRB(p)			(((p) << 1) & 0x7)
 
+/*
+ * Halt Endpoint Command TRB field.
+ * The ESP bit only exists in the SSP2 controller.
+ */
+#define TRB_ESP				BIT(9)
+
 /* Link TRB specific fields. */
 #define TRB_TC				BIT(1)
 

drivers/usb/cdns3/cdnsp-ring.c

···
 	}
 
 	if (port_id != old_port) {
-		cdnsp_disable_slot(pdev);
+		if (pdev->slot_id)
+			cdnsp_disable_slot(pdev);
+
 		pdev->active_port = port;
 		cdnsp_enable_slot(pdev);
 	}
···
 {
 	cdnsp_queue_command(pdev, 0, 0, 0, TRB_TYPE(TRB_HALT_ENDPOINT) |
 			    SLOT_ID_FOR_TRB(pdev->slot_id) |
-			    EP_ID_FOR_TRB(ep_index));
+			    EP_ID_FOR_TRB(ep_index) |
+			    (!ep_index ? TRB_ESP : 0));
 }
 
 void cdnsp_force_header_wakeup(struct cdnsp_device *pdev, int intf_num)

drivers/usb/chipidea/udc.c

···
 	 */
 	if (hw_read(ci, OP_ENDPTLISTADDR, ~0) == 0)
 		hw_write(ci, OP_ENDPTLISTADDR, ~0, ~0);
+
+	if (ci->gadget.connected &&
+	    (!ci->suspended || !device_may_wakeup(ci->dev)))
+		usb_gadget_disconnect(&ci->gadget);
 }
 
 static void udc_resume(struct ci_hdrc *ci, bool power_lost)
···
 					OTGSC_BSVIS | OTGSC_BSVIE);
 		if (ci->vbus_active)
 			usb_gadget_vbus_disconnect(&ci->gadget);
+	} else if (ci->vbus_active && ci->driver &&
+		   !ci->gadget.connected) {
+		usb_gadget_connect(&ci->gadget);
 	}
 
 	/* Restore value 0 if it was set for power lost check */

drivers/usb/core/hub.c

···
  */
 #define USB_SHORT_SET_ADDRESS_REQ_TIMEOUT	500  /* ms */
 
+/*
+ * Give SS hubs 200ms time after wake to train downstream links before
+ * assuming no port activity and allowing hub to runtime suspend back.
+ */
+#define USB_SS_PORT_U0_WAKE_TIME	200  /* ms */
+
 /* Protect struct usb_device->state and ->children members
  * Note: Both are also protected by ->dev.sem, except that ->state can
  * change to USB_STATE_NOTATTACHED even when the semaphore isn't held. */
···
 			goto init2;
 		goto init3;
 	}
+
 	hub_get(hub);
 
 	/* The superspeed hub except for root hub has to use Hub Depth
···
 		device_unlock(&hdev->dev);
 	}
 
+	if (type == HUB_RESUME && hub_is_superspeed(hub->hdev)) {
+		/* give usb3 downstream links training time after hub resume */
+		usb_autopm_get_interface_no_resume(
+			to_usb_interface(hub->intfdev));
+
+		queue_delayed_work(system_power_efficient_wq,
+				   &hub->post_resume_work,
+				   msecs_to_jiffies(USB_SS_PORT_U0_WAKE_TIME));
+		return;
+	}
+
 	hub_put(hub);
 }
 
···
 	struct usb_hub *hub = container_of(ws, struct usb_hub, init_work.work);
 
 	hub_activate(hub, HUB_INIT3);
+}
+
+static void hub_post_resume(struct work_struct *ws)
+{
+	struct usb_hub *hub = container_of(ws, struct usb_hub, post_resume_work.work);
+
+	usb_autopm_put_interface_async(to_usb_interface(hub->intfdev));
+	hub_put(hub);
 }
 
 enum hub_quiescing_type {
···
 
 	/* Stop hub_wq and related activity */
 	timer_delete_sync(&hub->irq_urb_retry);
+	flush_delayed_work(&hub->post_resume_work);
 	usb_kill_urb(hub->urb);
 	if (hub->has_indicators)
 		cancel_delayed_work_sync(&hub->leds);
···
 	hub->hdev = hdev;
 	INIT_DELAYED_WORK(&hub->leds, led_work);
 	INIT_DELAYED_WORK(&hub->init_work, NULL);
+	INIT_DELAYED_WORK(&hub->post_resume_work, hub_post_resume);
 	INIT_WORK(&hub->events, hub_event);
 	INIT_LIST_HEAD(&hub->onboard_devs);
 	spin_lock_init(&hub->irq_urb_lock);
···
 
 	usb_remove_ep_devs(&udev->ep0);
 	usb_unlock_device(udev);
+
+	if (udev->usb4_link)
+		device_link_del(udev->usb4_link);
 
 	/* Unregister the device.  The device driver is responsible
 	 * for de-configuring the device and invoking the remove-device

drivers/usb/core/hub.h

···
 	u8			indicator[USB_MAXCHILDREN];
 	struct delayed_work	leds;
 	struct delayed_work	init_work;
+	struct delayed_work	post_resume_work;
 	struct work_struct      events;
 	spinlock_t		irq_urb_lock;
 	struct timer_list	irq_urb_retry;

drivers/usb/core/quirks.c

···
 	{ USB_DEVICE(0x046a, 0x0023), .driver_info = USB_QUIRK_RESET_RESUME },
 
 	/* Logitech HD Webcam C270 */
-	{ USB_DEVICE(0x046d, 0x0825), .driver_info = USB_QUIRK_RESET_RESUME },
+	{ USB_DEVICE(0x046d, 0x0825), .driver_info = USB_QUIRK_RESET_RESUME |
+		USB_QUIRK_NO_LPM},
 
 	/* Logitech HD Pro Webcams C920, C920-C, C922, C925e and C930e */
 	{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },

drivers/usb/core/usb-acpi.c

···
  */
 static int usb_acpi_add_usb4_devlink(struct usb_device *udev)
 {
-	const struct device_link *link;
+	struct device_link *link;
 	struct usb_port *port_dev;
 	struct usb_hub *hub;
 
···
 
 	dev_dbg(&port_dev->dev, "Created device link from %s to %s\n",
 		dev_name(&port_dev->child->dev), dev_name(nhi_fwnode->dev));
+
+	udev->usb4_link = link;
 
 	return 0;
 }

drivers/usb/dwc3/core.c

···
 {
 	u32 reg;
 	int i;
+	int ret;
 
 	if (!pm_runtime_suspended(dwc->dev) && !PMSG_IS_AUTO(msg)) {
 		dwc->susphy_state = (dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)) &
···
 	case DWC3_GCTL_PRTCAP_DEVICE:
 		if (pm_runtime_suspended(dwc->dev))
 			break;
-		dwc3_gadget_suspend(dwc);
+		ret = dwc3_gadget_suspend(dwc);
+		if (ret)
+			return ret;
 		synchronize_irq(dwc->irq_gadget);
 		dwc3_core_exit(dwc);
 		break;
···
 			break;
 
 		if (dwc->current_otg_role == DWC3_OTG_ROLE_DEVICE) {
-			dwc3_gadget_suspend(dwc);
+			ret = dwc3_gadget_suspend(dwc);
+			if (ret)
+				return ret;
 			synchronize_irq(dwc->irq_gadget);
 		}
 

drivers/usb/dwc3/gadget.c

···
 	 * We're going to do that here to avoid problems of HW trying
 	 * to use bogus TRBs for transfers.
 	 */
-	if (chain && (trb->ctrl & DWC3_TRB_CTRL_HWO))
+	if (trb->ctrl & DWC3_TRB_CTRL_HWO)
 		trb->ctrl &= ~DWC3_TRB_CTRL_HWO;
 
 	/*
···
 	int ret;
 
 	ret = dwc3_gadget_soft_disconnect(dwc);
-	if (ret)
-		goto err;
+	/*
+	 * Attempt to reset the controller's state. Likely no
+	 * communication can be established until the host
+	 * performs a port reset.
+	 */
+	if (ret && dwc->softconnect) {
+		dwc3_gadget_soft_connect(dwc);
+		return -EAGAIN;
+	}
 
 	spin_lock_irqsave(&dwc->lock, flags);
 	if (dwc->gadget_driver)
···
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	return 0;
-
-err:
-	/*
-	 * Attempt to reset the controller's state. Likely no
-	 * communication can be established until the host
-	 * performs a port reset.
-	 */
-	if (dwc->softconnect)
-		dwc3_gadget_soft_connect(dwc);
-
-	return ret;
 }
 
 int dwc3_gadget_resume(struct dwc3 *dwc)

drivers/usb/gadget/function/u_serial.c

···
 			break;
 	}
 
-	if (do_tty_wake && port->port.tty)
-		tty_wakeup(port->port.tty);
+	if (do_tty_wake)
+		tty_port_tty_wakeup(&port->port);
 	return status;
 }
 
···
 static int gs_start_io(struct gs_port *port)
 {
 	struct list_head	*head = &port->read_pool;
-	struct usb_ep		*ep;
+	struct usb_ep		*ep = port->port_usb->out;
 	int			status;
 	unsigned		started;
-
-	if (!port->port_usb || !port->port.tty)
-		return -EIO;
 
 	/* Allocate RX and TX I/O buffers.  We can't easily do this much
 	 * earlier (with GFP_KERNEL) because the requests are coupled to
···
 	 * configurations may use different endpoints with a given port;
 	 * and high speed vs full speed changes packet sizes too.
 	 */
-	ep = port->port_usb->out;
 	status = gs_alloc_requests(ep, head, gs_read_complete,
 		&port->read_allocated);
 	if (status)
···
 		gs_start_tx(port);
 		/* Unblock any pending writes into our circular buffer, in case
 		 * we didn't in gs_start_tx() */
-		tty_wakeup(port->port.tty);
+		tty_port_tty_wakeup(&port->port);
 	} else {
 		/* Free reqs only if we are still connected */
 		if (port->port_usb) {

drivers/usb/host/xhci-dbgcap.c

···
 	case DS_DISABLED:
 		return;
 	case DS_CONFIGURED:
+		spin_lock(&dbc->lock);
+		xhci_dbc_flush_requests(dbc);
+		spin_unlock(&dbc->lock);
+
 		if (dbc->driver->disconnect)
 			dbc->driver->disconnect(dbc);
 		break;

drivers/usb/host/xhci-dbgtty.c

···
 	dbc_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
 	dbc_tty_driver->subtype = SERIAL_TYPE_NORMAL;
 	dbc_tty_driver->init_termios = tty_std_termios;
+	dbc_tty_driver->init_termios.c_lflag &= ~ECHO;
 	dbc_tty_driver->init_termios.c_cflag =
 			B9600 | CS8 | CREAD | HUPCL | CLOCAL;
 	dbc_tty_driver->init_termios.c_ispeed = 9600;

drivers/usb/host/xhci-mem.c

···
 	/* Periodic endpoint bInterval limit quirk */
 	if (usb_endpoint_xfer_int(&ep->desc) ||
 	    usb_endpoint_xfer_isoc(&ep->desc)) {
+		if ((xhci->quirks & XHCI_LIMIT_ENDPOINT_INTERVAL_9) &&
+		    interval >= 9) {
+			interval = 8;
+		}
 		if ((xhci->quirks & XHCI_LIMIT_ENDPOINT_INTERVAL_7) &&
 		    udev->speed >= USB_SPEED_HIGH &&
 		    interval >= 7) {

drivers/usb/host/xhci-pci.c

···
 #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI		0x15ec
 #define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI		0x15f0
 
+#define PCI_DEVICE_ID_AMD_ARIEL_TYPEC_XHCI		0x13ed
+#define PCI_DEVICE_ID_AMD_ARIEL_TYPEA_XHCI		0x13ee
+#define PCI_DEVICE_ID_AMD_STARSHIP_XHCI			0x148c
+#define PCI_DEVICE_ID_AMD_FIREFLIGHT_15D4_XHCI		0x15d4
+#define PCI_DEVICE_ID_AMD_FIREFLIGHT_15D5_XHCI		0x15d5
+#define PCI_DEVICE_ID_AMD_RAVEN_15E0_XHCI		0x15e0
+#define PCI_DEVICE_ID_AMD_RAVEN_15E1_XHCI		0x15e1
+#define PCI_DEVICE_ID_AMD_RAVEN2_XHCI			0x15e5
 #define PCI_DEVICE_ID_AMD_RENOIR_XHCI			0x1639
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_4			0x43b9
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_3			0x43ba
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_2			0x43bb
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_1			0x43bc
+
+#define PCI_DEVICE_ID_ATI_NAVI10_7316_XHCI		0x7316
 
 #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI			0x1042
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
···
 
 	if (pdev->vendor == PCI_VENDOR_ID_NEC)
 		xhci->quirks |= XHCI_NEC_HOST;
+
+	if (pdev->vendor == PCI_VENDOR_ID_AMD &&
+	    (pdev->device == PCI_DEVICE_ID_AMD_ARIEL_TYPEC_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_AMD_ARIEL_TYPEA_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_AMD_STARSHIP_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_AMD_FIREFLIGHT_15D4_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_AMD_FIREFLIGHT_15D5_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_AMD_RAVEN_15E0_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_AMD_RAVEN_15E1_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_AMD_RAVEN2_XHCI))
+		xhci->quirks |= XHCI_LIMIT_ENDPOINT_INTERVAL_9;
+
+	if (pdev->vendor == PCI_VENDOR_ID_ATI &&
+	    pdev->device == PCI_DEVICE_ID_ATI_NAVI10_7316_XHCI)
+		xhci->quirks |= XHCI_LIMIT_ENDPOINT_INTERVAL_9;
 
 	if (pdev->vendor == PCI_VENDOR_ID_AMD && xhci->hci_version == 0x96)
 		xhci->quirks |= XHCI_AMD_0x96_HOST;

drivers/usb/host/xhci-plat.c

···
 	}
 
 	usb3_hcd = xhci_get_usb3_hcd(xhci);
-	if (usb3_hcd && HCC_MAX_PSA(xhci->hcc_params) >= 4)
+	if (usb3_hcd && HCC_MAX_PSA(xhci->hcc_params) >= 4 &&
+	    !(xhci->quirks & XHCI_BROKEN_STREAMS))
 		usb3_hcd->can_do_streams = 1;
 
 	if (xhci->shared_hcd) {

drivers/usb/host/xhci-ring.c

···
 	 * In the future we should distinguish between -ENODEV and -ETIMEDOUT
 	 * and try to recover a -ETIMEDOUT with a host controller reset.
 	 */
-	ret = xhci_handshake_check_state(xhci, &xhci->op_regs->cmd_ring,
-			CMD_RING_RUNNING, 0, 5 * 1000 * 1000,
-			XHCI_STATE_REMOVING);
+	ret = xhci_handshake(&xhci->op_regs->cmd_ring,
+			CMD_RING_RUNNING, 0, 5 * 1000 * 1000);
 	if (ret < 0) {
 		xhci_err(xhci, "Abort failed to stop command ring: %d\n", ret);
 		xhci_halt(xhci);

drivers/usb/host/xhci.c

···
 }
 
 /*
- * xhci_handshake_check_state - same as xhci_handshake but takes an additional
- * exit_state parameter, and bails out with an error immediately when xhc_state
- * has exit_state flag set.
- */
-int xhci_handshake_check_state(struct xhci_hcd *xhci, void __iomem *ptr,
-		u32 mask, u32 done, int usec, unsigned int exit_state)
-{
-	u32	result;
-	int	ret;
-
-	ret = readl_poll_timeout_atomic(ptr, result,
-				(result & mask) == done ||
-				result == U32_MAX ||
-				xhci->xhc_state & exit_state,
-				1, usec);
-
-	if (result == U32_MAX || xhci->xhc_state & exit_state)
-		return -ENODEV;
-
-	return ret;
-}
-
-/*
  * Disable interrupts and begin the xHCI halting process.
  */
 void xhci_quiesce(struct xhci_hcd *xhci)
···
 	if (xhci->quirks & XHCI_INTEL_HOST)
 		udelay(1000);
 
-	ret = xhci_handshake_check_state(xhci, &xhci->op_regs->command,
-				CMD_RESET, 0, timeout_us, XHCI_STATE_REMOVING);
+	ret = xhci_handshake(&xhci->op_regs->command, CMD_RESET, 0, timeout_us);
 	if (ret)
 		return ret;
 
···
 		xhci_dbg(xhci, "Stop HCD\n");
 		xhci_halt(xhci);
 		xhci_zero_64b_regs(xhci);
-		retval = xhci_reset(xhci, XHCI_RESET_LONG_USEC);
+		if (xhci->xhc_state & XHCI_STATE_REMOVING)
+			retval = -ENODEV;
+		else
+			retval = xhci_reset(xhci, XHCI_RESET_LONG_USEC);
 		spin_unlock_irq(&xhci->lock);
 		if (retval)
 			return retval;

drivers/usb/host/xhci.h

···
 #define XHCI_WRITE_64_HI_LO	BIT_ULL(47)
 #define XHCI_CDNS_SCTX_QUIRK	BIT_ULL(48)
 #define XHCI_ETRON_HOST	BIT_ULL(49)
+#define XHCI_LIMIT_ENDPOINT_INTERVAL_9 BIT_ULL(50)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
···
 /* xHCI host controller glue */
 typedef void (*xhci_get_quirks_t)(struct device *, struct xhci_hcd *);
 int xhci_handshake(void __iomem *ptr, u32 mask, u32 done, u64 timeout_us);
-int xhci_handshake_check_state(struct xhci_hcd *xhci, void __iomem *ptr,
-		u32 mask, u32 done, int usec, unsigned int exit_state);
 void xhci_quiesce(struct xhci_hcd *xhci);
 int xhci_halt(struct xhci_hcd *xhci);
 int xhci_start(struct xhci_hcd *xhci);

drivers/usb/typec/altmodes/displayport.c

···
 	case CMDT_RSP_NAK:
 		switch (cmd) {
 		case DP_CMD_STATUS_UPDATE:
-			if (typec_altmode_exit(alt))
-				dev_err(&dp->alt->dev, "Exit Mode Failed!\n");
+			dp->state = DP_STATE_EXIT;
 			break;
 		case DP_CMD_CONFIGURE:
 			dp->data.conf = 0;
···
 
 	assignments = get_current_pin_assignments(dp);
 
-	for (i = 0; assignments; assignments >>= 1, i++) {
+	for (i = 0; assignments && i < DP_PIN_ASSIGN_MAX; assignments >>= 1, i++) {
 		if (assignments & 1) {
 			if (i == cur)
 				len += sprintf(buf + len, "[%s] ",

drivers/usb/typec/tcpm/tcpm.c

···
 
 	tcpm_enable_auto_vbus_discharge(port, true);
 
-	ret = tcpm_set_roles(port, true, TYPEC_STATE_USB,
-			     TYPEC_SOURCE, tcpm_data_role_for_source(port));
-	if (ret < 0)
-		return ret;
-
-	if (port->pd_supported) {
-		ret = port->tcpc->set_pd_rx(port->tcpc, true);
-		if (ret < 0)
-			goto out_disable_mux;
-	}
-
 	/*
 	 * USB Type-C specification, version 1.2,
 	 * chapter 4.5.2.2.8.1 (Attached.SRC Requirements)
···
 	    (polarity == TYPEC_POLARITY_CC2 && port->cc1 == TYPEC_CC_RA)) {
 		ret = tcpm_set_vconn(port, true);
 		if (ret < 0)
-			goto out_disable_pd;
+			return ret;
 	}
 
 	ret = tcpm_set_vbus(port, true);
 	if (ret < 0)
 		goto out_disable_vconn;
+
+	ret = tcpm_set_roles(port, true, TYPEC_STATE_USB, TYPEC_SOURCE,
+			     tcpm_data_role_for_source(port));
+	if (ret < 0)
+		goto out_disable_vbus;
+
+	if (port->pd_supported) {
+		ret = port->tcpc->set_pd_rx(port->tcpc, true);
+		if (ret < 0)
+			goto out_disable_mux;
+	}
 
 	port->pd_capable = false;
 
···
 
 	return 0;
 
-out_disable_vconn:
-	tcpm_set_vconn(port, false);
-out_disable_pd:
-	if (port->pd_supported)
-		port->tcpc->set_pd_rx(port->tcpc, false);
 out_disable_mux:
 	tcpm_mux_set(port, TYPEC_STATE_SAFE, USB_ROLE_NONE,
 		     TYPEC_ORIENTATION_NONE);
+out_disable_vbus:
+	tcpm_set_vbus(port, false);
+out_disable_vconn:
+	tcpm_set_vconn(port, false);
+
 	return ret;
 }
 

fs/anon_inodes.c

···
 	.kill_sb	= kill_anon_super,
 };
 
-static struct inode *anon_inode_make_secure_inode(
-	const char *name,
-	const struct inode *context_inode)
+/**
+ * anon_inode_make_secure_inode - allocate an anonymous inode with security context
+ * @sb:		[in]	Superblock to allocate from
+ * @name:	[in]	Name of the class of the newfile (e.g., "secretmem")
+ * @context_inode:
+ *		[in]	Optional parent inode for security inheritance
+ *
+ * The function ensures proper security initialization through the LSM hook
+ * security_inode_init_security_anon().
+ *
+ * Return:	Pointer to new inode on success, ERR_PTR on failure.
+ */
+struct inode *anon_inode_make_secure_inode(struct super_block *sb, const char *name,
+					   const struct inode *context_inode)
 {
 	struct inode *inode;
 	int error;
 
-	inode = alloc_anon_inode(anon_inode_mnt->mnt_sb);
+	inode = alloc_anon_inode(sb);
 	if (IS_ERR(inode))
 		return inode;
 	inode->i_flags &= ~S_PRIVATE;
···
 	}
 	return inode;
 }
+EXPORT_SYMBOL_GPL_FOR_MODULES(anon_inode_make_secure_inode, "kvm");
 
 static struct file *__anon_inode_getfile(const char *name,
 					 const struct file_operations *fops,
···
 		return ERR_PTR(-ENOENT);
 
 	if (make_inode) {
-		inode =	anon_inode_make_secure_inode(name, context_inode);
+		inode =	anon_inode_make_secure_inode(anon_inode_mnt->mnt_sb,
+						     name, context_inode);
 		if (IS_ERR(inode)) {
 			file = ERR_CAST(inode);
 			goto err;

fs/bcachefs/bcachefs.h

···
 	DARRAY(enum bcachefs_metadata_version)
 				incompat_versions_requested;
 
-#ifdef CONFIG_UNICODE
 	struct unicode_map	*cf_encoding;
-#endif
 
 	struct bch_sb_handle	disk_sb;
 
···
 	return test_bit(BCH_FS_discard_mount_opt_set, &c->flags)
 		? c->opts.discard
 		: ca->mi.discard;
+}
+
+static inline bool bch2_fs_casefold_enabled(struct bch_fs *c)
+{
+#ifdef CONFIG_UNICODE
+	return !c->opts.casefold_disabled;
+#else
+	return false;
+#endif
 }
 
 #endif /* _BCACHEFS_H */

fs/bcachefs/btree_io.c

···
 
 	btree_node_reset_sib_u64s(b);
 
-	scoped_guard(rcu)
-		bkey_for_each_ptr(bch2_bkey_ptrs(bkey_i_to_s(&b->key)), ptr) {
-			struct bch_dev *ca2 = bch2_dev_rcu(c, ptr->dev);
+	/*
+	 * XXX:
+	 *
+	 * We deadlock if too many btree updates require node rewrites while
+	 * we're still in journal replay.
+	 *
+	 * This is because btree node rewrites generate more updates for the
+	 * interior updates (alloc, backpointers), and if those updates touch
+	 * new nodes and generate more rewrites - well, you see the problem.
+	 *
+	 * The biggest cause is that we don't use the btree write buffer (for
+	 * the backpointer updates - this needs some real thought on locking in
+	 * order to fix.
+	 *
+	 * The problem with this workaround (not doing the rewrite for degraded
+	 * nodes in journal replay) is that those degraded nodes persist, and we
+	 * don't want that (this is a real bug when a btree node write completes
+	 * with fewer replicas than we wanted and leaves a degraded node due to
+	 * device _removal_, i.e. the device went away mid write).
+	 *
+	 * It's less of a bug here, but still a problem because we don't yet
+	 * have a way of tracking degraded data - we another index (all
+	 * extents/btree nodes, by replicas entry) in order to fix properly
+	 * (re-replicate degraded data at the earliest possible time).
+	 */
+	if (c->recovery.passes_complete & BIT_ULL(BCH_RECOVERY_PASS_journal_replay)) {
+		scoped_guard(rcu)
+			bkey_for_each_ptr(bch2_bkey_ptrs(bkey_i_to_s(&b->key)), ptr) {
+				struct bch_dev *ca2 = bch2_dev_rcu(c, ptr->dev);
 
-			if (!ca2 || ca2->mi.state != BCH_MEMBER_STATE_rw) {
-				set_btree_node_need_rewrite(b);
-				set_btree_node_need_rewrite_degraded(b);
+				if (!ca2 || ca2->mi.state != BCH_MEMBER_STATE_rw) {
+					set_btree_node_need_rewrite(b);
+					set_btree_node_need_rewrite_degraded(b);
+				}
 			}
-		}
+	}
 
 	if (!ptr_written) {
 		set_btree_node_need_rewrite(b);

fs/bcachefs/btree_iter.c

···
 	struct btree_path *path = btree_iter_path(trans, iter);
 	struct bkey_i *next_journal =
 		bch2_btree_journal_peek_prev(trans, iter, search_key,
-				k->k ? k->k->p : path_l(path)->b->key.k.p);
+				k->k ? k->k->p : path_l(path)->b->data->min_key);
 
 	if (next_journal) {
 		iter->k = next_journal->k;

fs/bcachefs/dirent.c

···
 {
 	*out_cf = (struct qstr) QSTR_INIT(NULL, 0);
 
-#ifdef CONFIG_UNICODE
+	if (!bch2_fs_casefold_enabled(trans->c))
+		return -EOPNOTSUPP;
+
 	unsigned char *buf = bch2_trans_kmalloc(trans, BCH_NAME_MAX + 1);
 	int ret = PTR_ERR_OR_ZERO(buf);
 	if (ret)
···
 
 	*out_cf = (struct qstr) QSTR_INIT(buf, ret);
 	return 0;
-#else
-	return -EOPNOTSUPP;
-#endif
 }
 
 static unsigned bch2_dirent_name_bytes(struct bkey_s_c_dirent d)
···
 	prt_printf(out, " type %s", bch2_d_type_str(d.v->d_type));
 }
 
-int bch2_dirent_init_name(struct bkey_i_dirent *dirent,
+int bch2_dirent_init_name(struct bch_fs *c,
+			  struct bkey_i_dirent *dirent,
 			  const struct bch_hash_info *hash_info,
 			  const struct qstr *name,
 			  const struct qstr *cf_name)
···
 		       offsetof(struct bch_dirent, d_name) -
 		       name->len);
 	} else {
-#ifdef CONFIG_UNICODE
+		if (!bch2_fs_casefold_enabled(c))
+			return -EOPNOTSUPP;
+
 		memcpy(&dirent->v.d_cf_name_block.d_names[0], name->name, name->len);
 
 		char *cf_out = &dirent->v.d_cf_name_block.d_names[name->len];
···
 		dirent->v.d_cf_name_block.d_cf_name_len = cpu_to_le16(cf_len);
 
 		EBUG_ON(bch2_dirent_get_casefold_name(dirent_i_to_s_c(dirent)).len != cf_len);
-#else
-	return -EOPNOTSUPP;
-#endif
 	}
 
 	unsigned u64s = dirent_val_u64s(name->len, cf_len);
···
 	dirent->v.d_type = type;
 	dirent->v.d_unused = 0;
 
-	int ret = bch2_dirent_init_name(dirent, hash_info, name, cf_name);
+	int ret = bch2_dirent_init_name(trans->c, dirent, hash_info, name, cf_name);
 	if (ret)
 		return ERR_PTR(ret);
 

fs/bcachefs/dirent.h

···
 	dst->v.d_type = src.v->d_type;
 }
 
-int bch2_dirent_init_name(struct bkey_i_dirent *,
+int bch2_dirent_init_name(struct bch_fs *,
+			  struct bkey_i_dirent *,
 			  const struct bch_hash_info *,
 			  const struct qstr *,
 			  const struct qstr *);

fs/bcachefs/fs.c

···
 	if (IS_ERR(inode))
 		inode = NULL;
 
-#ifdef CONFIG_UNICODE
 	if (!inode && IS_CASEFOLDED(vdir)) {
 		/*
 		 * Do not cache a negative dentry in casefolded directories
···
 		 */
 		return NULL;
 	}
-#endif
 
 	return d_splice_alias(&inode->v, dentry);
 }
···
 	sb->s_shrink->seeks = 0;
 
 #ifdef CONFIG_UNICODE
-	sb->s_encoding = c->cf_encoding;
-#endif
+	if (bch2_fs_casefold_enabled(c))
+		sb->s_encoding = c->cf_encoding;
 	generic_set_sb_d_ops(sb);
+#endif
 
 	vinode = bch2_vfs_inode_get(c, BCACHEFS_ROOT_SUBVOL_INUM);
 	ret = PTR_ERR_OR_ZERO(vinode);

fs/bcachefs/fsck.c

···
 		*hash_info = bch2_hash_info_init(c, &i->inode);
 	dir->first_this_inode = false;
 
-#ifdef CONFIG_UNICODE
 	hash_info->cf_encoding = bch2_inode_casefold(c, &i->inode) ? c->cf_encoding : NULL;
-#endif
 
 	ret = bch2_str_hash_check_key(trans, s, &bch2_dirent_hash_desc, hash_info,
 				      iter, k, need_second_pass);
···
 				ret = remove_backpointer(trans, &inode);
 				bch_err_msg(c, ret, "removing dirent");
 				if (ret)
-					break;
+					goto out;
 
 				ret = reattach_inode(trans, &inode);
 				bch_err_msg(c, ret, "reattaching inode %llu", inode.bi_inum);

fs/bcachefs/inode.c

···
 {
 	struct bch_fs *c = trans->c;
 
-#ifdef CONFIG_UNICODE
+#ifndef CONFIG_UNICODE
+	bch_err(c, "Cannot use casefolding on a kernel without CONFIG_UNICODE");
+	return -EOPNOTSUPP;
+#endif
+
+	if (c->opts.casefold_disabled)
+		return -EOPNOTSUPP;
+
 	int ret = 0;
 	/* Not supported on individual files. */
 	if (!S_ISDIR(bi->bi_mode))
···
 	bi->bi_fields_set |= BIT(Inode_opt_casefold);
 
 	return bch2_maybe_propagate_has_case_insensitive(trans, inum, bi);
-#else
-	bch_err(c, "Cannot use casefolding on a kernel without CONFIG_UNICODE");
-	return -EOPNOTSUPP;
-#endif
 }
 
 static noinline int __bch2_inode_rm_snapshot(struct btree_trans *trans, u64 inum, u32 snapshot)

fs/bcachefs/opts.h

···
 	  OPT_BOOL(),							\
 	  BCH_SB_CASEFOLD,		false,				\
 	  NULL,		"Dirent lookups are casefolded")		\
+	x(casefold_disabled,			u8,			\
+	  OPT_FS|OPT_MOUNT,						\
+	  OPT_BOOL(),							\
+	  BCH2_NO_SB_OPT,		false,				\
+	  NULL,		"Disable casefolding filesystem wide")		\
 	x(inodes_32bit,			u8,				\
 	  OPT_FS|OPT_INODE|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME,		\
 	  OPT_BOOL(),							\

fs/bcachefs/sb-errors_format.h

···
 	x(accounting_mismatch,					272,	FSCK_AUTOFIX)	\
 	x(accounting_replicas_not_marked,			273,	0)		\
 	x(accounting_to_invalid_device,				289,	0)		\
-	x(invalid_btree_id,					274,	0)		\
+	x(invalid_btree_id,					274,	FSCK_AUTOFIX)		\
 	x(alloc_key_io_time_bad,				275,	0)		\
 	x(alloc_key_fragmentation_lru_wrong,			276,	FSCK_AUTOFIX)	\
 	x(accounting_key_junk_at_end,				277,	FSCK_AUTOFIX)	\

fs/bcachefs/str_hash.c

···
 				   struct bkey_s_c_dirent old,
 				   bool *updated_before_k_pos)
 {
+	struct bch_fs *c = trans->c;
 	struct qstr old_name = bch2_dirent_get_name(old);
 	struct bkey_i_dirent *new = bch2_trans_kmalloc(trans, BKEY_U64s_MAX * sizeof(u64));
 	int ret = PTR_ERR_OR_ZERO(new);
···
 					sprintf(renamed_buf, "%.*s.fsck_renamed-%u",
 						old_name.len, old_name.name, i));
 
-		ret = bch2_dirent_init_name(new, hash_info, &renamed_name, NULL);
+		ret = bch2_dirent_init_name(c, new, hash_info, &renamed_name, NULL);
 		if (ret)
 			return ret;
 
···
 	}
 
 	ret = ret ?: bch2_fsck_update_backpointers(trans, s, desc, hash_info, &new->k_i);
-	bch_err_fn(trans->c, ret);
+	bch_err_fn(c, ret);
 	return ret;
 }
 

fs/bcachefs/str_hash.h

···
 	struct bch_hash_info info = {
 		.inum_snapshot	= bi->bi_snapshot,
 		.type		= INODE_STR_HASH(bi),
-#ifdef CONFIG_UNICODE
 		.cf_encoding	= bch2_inode_casefold(c, bi) ? c->cf_encoding : NULL,
-#endif
 		.siphash_key	= { .k0 = bi->bi_hash_seed }
 	};
 

fs/bcachefs/super.c

···
 	}
 
 #ifdef CONFIG_UNICODE
-	/* Default encoding until we can potentially have more as an option. */
-	c->cf_encoding = utf8_load(BCH_FS_DEFAULT_UTF8_ENCODING);
-	if (IS_ERR(c->cf_encoding)) {
-		printk(KERN_ERR "Cannot load UTF-8 encoding for filesystem. Version: %u.%u.%u",
-			unicode_major(BCH_FS_DEFAULT_UTF8_ENCODING),
-			unicode_minor(BCH_FS_DEFAULT_UTF8_ENCODING),
-			unicode_rev(BCH_FS_DEFAULT_UTF8_ENCODING));
-		ret = -EINVAL;
-		goto err;
+	if (bch2_fs_casefold_enabled(c)) {
+		/* Default encoding until we can potentially have more as an option. */
+		c->cf_encoding = utf8_load(BCH_FS_DEFAULT_UTF8_ENCODING);
+		if (IS_ERR(c->cf_encoding)) {
+			printk(KERN_ERR "Cannot load UTF-8 encoding for filesystem. Version: %u.%u.%u",
+			       unicode_major(BCH_FS_DEFAULT_UTF8_ENCODING),
+			       unicode_minor(BCH_FS_DEFAULT_UTF8_ENCODING),
+			       unicode_rev(BCH_FS_DEFAULT_UTF8_ENCODING));
+			ret = -EINVAL;
+			goto err;
+		}
 	}
 #else
 	if (c->sb.features & BIT_ULL(BCH_FEATURE_casefolding)) {
···
 
 	print_mount_opts(c);
 
-#ifdef CONFIG_UNICODE
-	bch_info(c, "Using encoding defined by superblock: utf8-%u.%u.%u",
-		 unicode_major(BCH_FS_DEFAULT_UTF8_ENCODING),
-		 unicode_minor(BCH_FS_DEFAULT_UTF8_ENCODING),
-		 unicode_rev(BCH_FS_DEFAULT_UTF8_ENCODING));
-#endif
+	if (c->cf_encoding)
+		bch_info(c, "Using encoding defined by superblock: utf8-%u.%u.%u",
+			 unicode_major(BCH_FS_DEFAULT_UTF8_ENCODING),
+			 unicode_minor(BCH_FS_DEFAULT_UTF8_ENCODING),
+			 unicode_rev(BCH_FS_DEFAULT_UTF8_ENCODING));
 
 	if (!bch2_fs_may_start(c))
 		return bch_err_throw(c, insufficient_devices_to_start);

fs/btrfs/block-group.h

···
 	BLOCK_GROUP_FLAG_ZONED_DATA_RELOC,
 	/* Does the block group need to be added to the free space tree? */
 	BLOCK_GROUP_FLAG_NEEDS_FREE_SPACE,
+	/* Set after we add a new block group to the free space tree. */
+	BLOCK_GROUP_FLAG_FREE_SPACE_ADDED,
 	/* Indicate that the block group is placed on a sequential zone */
 	BLOCK_GROUP_FLAG_SEQUENTIAL_ZONE,
 	/*

fs/btrfs/free-space-tree.c

···
 {
 	BTRFS_PATH_AUTO_FREE(path);
 	struct btrfs_key key;
+	struct rb_node *node;
 	int nr;
 	int ret;
 
···
 			return ret;
 
 		btrfs_release_path(path);
+	}
+
+	node = rb_first_cached(&trans->fs_info->block_group_cache_tree);
+	while (node) {
+		struct btrfs_block_group *bg;
+
+		bg = rb_entry(node, struct btrfs_block_group, cache_node);
+		clear_bit(BLOCK_GROUP_FLAG_FREE_SPACE_ADDED, &bg->runtime_flags);
+		node = rb_next(node);
+		cond_resched();
 	}
 
 	return 0;
···
 
 		block_group = rb_entry(node, struct btrfs_block_group,
 				       cache_node);
+
+		if (test_bit(BLOCK_GROUP_FLAG_FREE_SPACE_ADDED,
+			     &block_group->runtime_flags))
+			goto next;
+
 		ret = populate_free_space_tree(trans, block_group);
 		if (ret) {
 			btrfs_abort_transaction(trans, ret);
 			btrfs_end_transaction(trans);
 			return ret;
 		}
+next:
 		if (btrfs_should_end_transaction(trans)) {
 			btrfs_end_transaction(trans);
 			trans = btrfs_start_transaction(free_space_root, 1);
···
 	int ret;
 
 	clear_bit(BLOCK_GROUP_FLAG_NEEDS_FREE_SPACE, &block_group->runtime_flags);
+
+	/*
+	 * While rebuilding the free space tree we may allocate new metadata
+	 * block groups while modifying the free space tree.
+	 *
+	 * Because during the rebuild (at btrfs_rebuild_free_space_tree()) we
+	 * can use multiple transactions, every time btrfs_end_transaction() is
+	 * called at btrfs_rebuild_free_space_tree() we finish the creation of
+	 * new block groups by calling btrfs_create_pending_block_groups(), and
+	 * that in turn calls us, through add_block_group_free_space(), to add
+	 * a free space info item and a free space extent item for the block
+	 * group.
+	 *
+	 * Then later btrfs_rebuild_free_space_tree() may find such new block
+	 * groups and processes them with populate_free_space_tree(), which can
+	 * fail with EEXIST since there are already items for the block group in
+	 * the free space tree. Notice that we say "may find" because a new
+	 * block group may be added to the block groups rbtree in a node before
+	 * or after the block group currently being processed by the rebuild
+	 * process. So signal the rebuild process to skip such new block groups
+	 * if it finds them.
+	 */
+	set_bit(BLOCK_GROUP_FLAG_FREE_SPACE_ADDED, &block_group->runtime_flags);
 
 	ret = add_new_free_space_info(trans, block_group, path);
 	if (ret)

fs/btrfs/inode.c

···
 	struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info;
 	int ret = 0;
 	struct btrfs_trans_handle *trans;
-	u64 last_unlink_trans;
 	struct fscrypt_name fname;
 
 	if (inode->i_size > BTRFS_EMPTY_DIR_SIZE)
···
 		goto out_notrans;
 	}
 
+	/*
+	 * Propagate the last_unlink_trans value of the deleted dir to its
+	 * parent directory. This is to prevent an unrecoverable log tree in the
+	 * case we do something like this:
+	 * 1) create dir foo
+	 * 2) create snapshot under dir foo
+	 * 3) delete the snapshot
+	 * 4) rmdir foo
+	 * 5) mkdir foo
+	 * 6) fsync foo or some file inside foo
+	 *
+	 * This is because we can't unlink other roots when replaying the dir
+	 * deletes for directory foo.
+	 */
+	if (BTRFS_I(inode)->last_unlink_trans >= trans->transid)
+		btrfs_record_snapshot_destroy(trans, BTRFS_I(dir));
+
 	if (unlikely(btrfs_ino(BTRFS_I(inode)) == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
 		ret = btrfs_unlink_subvol(trans, BTRFS_I(dir), dentry);
 		goto out;
···
 	if (ret)
 		goto out;
 
-	last_unlink_trans = BTRFS_I(inode)->last_unlink_trans;
-
 	/* now the directory is empty */
 	ret = btrfs_unlink_inode(trans, BTRFS_I(dir), BTRFS_I(d_inode(dentry)),
 				 &fname.disk_name);
-	if (!ret) {
+	if (!ret)
 		btrfs_i_size_write(BTRFS_I(inode), 0);
-		/*
-		 * Propagate the last_unlink_trans value of the deleted dir to
-		 * its parent directory. This is to prevent an unrecoverable
-		 * log tree in the case we do something like this:
-		 * 1) create dir foo
-		 * 2) create snapshot under dir foo
-		 * 3) delete the snapshot
-		 * 4) rmdir foo
-		 * 5) mkdir foo
-		 * 6) fsync foo or some file inside foo
-		 */
-		if (last_unlink_trans >= trans->transid)
-			BTRFS_I(dir)->last_unlink_trans = last_unlink_trans;
-	}
 out:
 	btrfs_end_transaction(trans);
 out_notrans:

fs/btrfs/ioctl.c

···
 		goto out;
 	}
 
+	btrfs_record_new_subvolume(trans, BTRFS_I(dir));
+
 	ret = btrfs_create_new_inode(trans, &new_inode_args);
 	if (ret) {
 		btrfs_abort_transaction(trans, ret);
 		goto out;
 	}
-
-	btrfs_record_new_subvolume(trans, BTRFS_I(dir));
 
 	d_instantiate_new(dentry, new_inode_args.inode);
 	new_inode_args.inode = NULL;

fs/btrfs/tree-log.c

···
 	unsigned int nofs_flag;
 	struct btrfs_inode *inode;
 
+	/* Only meant to be called for subvolume roots and not for log roots. */
+	ASSERT(is_fstree(btrfs_root_id(root)));
+
 	/*
 	 * We're holding a transaction handle whether we are logging or
 	 * replaying a log tree, so we must make sure NOFS semantics apply
···
 	return 0;
 }
 
-/*
- * simple helper to read an inode off the disk from a given root
- * This can only be called for subvolume roots and not for the log
- */
-static noinline struct btrfs_inode *read_one_inode(struct btrfs_root *root,
-						   u64 objectid)
-{
-	struct btrfs_inode *inode;
-
-	inode = btrfs_iget_logging(objectid, root);
-	if (IS_ERR(inode))
-		return NULL;
-	return inode;
-}
-
 /* replays a single extent in 'eb' at 'slot' with 'key' into the
  * subvolume 'root'.  path is released on entry and should be released
  * on exit.
···
 		return -EUCLEAN;
 	}
 
-	inode = read_one_inode(root, key->objectid);
-	if (!inode)
-		return -EIO;
+	inode = btrfs_iget_logging(key->objectid, root);
+	if (IS_ERR(inode))
+		return PTR_ERR(inode);
 
 	/*
 	 * first check to see if we already have this extent in the
···
 
 	btrfs_release_path(path);
 
-	inode = read_one_inode(root, location.objectid);
-	if (!inode) {
-		ret = -EIO;
+	inode = btrfs_iget_logging(location.objectid, root);
+	if (IS_ERR(inode)) {
+		ret = PTR_ERR(inode);
+		inode = NULL;
 		goto out;
 	}
 
···
 	search_key.type = BTRFS_INODE_REF_KEY;
 	search_key.offset = parent_objectid;
 	ret = btrfs_search_slot(NULL, root, &search_key, path, 0, 0);
-	if (ret == 0) {
+	if (ret < 0) {
+		return ret;
+	} else if (ret == 0) {
 		struct btrfs_inode_ref *victim_ref;
 		unsigned long ptr;
 		unsigned long ptr_end;
···
 			struct fscrypt_str victim_name;
 
 			extref = (struct btrfs_inode_extref *)(base + cur_offset);
+			victim_name.len = btrfs_inode_extref_name_len(leaf, extref);
 
 			if (btrfs_inode_extref_parent(leaf, extref) != parent_objectid)
 				goto next;
 
 			ret = read_alloc_one_name(leaf, &extref->name,
-				 btrfs_inode_extref_name_len(leaf, extref),
-				 &victim_name);
+						  victim_name.len, &victim_name);
 			if (ret)
 				return ret;
 
···
 				kfree(victim_name.name);
 				return ret;
 			} else if (!ret) {
-				ret = -ENOENT;
-				victim_parent = read_one_inode(root,
-						parent_objectid);
-				if (victim_parent) {
+				victim_parent = btrfs_iget_logging(parent_objectid, root);
+				if (IS_ERR(victim_parent)) {
+					ret = PTR_ERR(victim_parent);
+				} else {
 					inc_nlink(&inode->vfs_inode);
 					btrfs_release_path(path);
 
···
 			struct btrfs_inode *dir;
 
 			btrfs_release_path(path);
-			dir = read_one_inode(root, parent_id);
-			if (!dir) {
-				ret = -ENOENT;
+			dir = btrfs_iget_logging(parent_id, root);
+			if (IS_ERR(dir)) {
+				ret = PTR_ERR(dir);
 				kfree(name.name);
 				goto out;
 			}
···
 	 * copy the back ref in.  The link count fixup code will take
 	 * care of the rest
 	 */
-	dir = read_one_inode(root, parent_objectid);
-	if (!dir) {
-		ret = -ENOENT;
+	dir = btrfs_iget_logging(parent_objectid, root);
+	if (IS_ERR(dir)) {
+		ret = PTR_ERR(dir);
+		dir = NULL;
 		goto out;
 	}
 
-	inode = read_one_inode(root, inode_objectid);
-	if (!inode) {
-		ret = -EIO;
+	inode = btrfs_iget_logging(inode_objectid, root);
+	if (IS_ERR(inode)) {
+		ret = PTR_ERR(inode);
+		inode = NULL;
 		goto out;
 	}
 
···
 			 * parent object can change from one array
 			 * item to another.
 			 */
-			if (!dir)
-				dir = read_one_inode(root, parent_objectid);
 			if (!dir) {
-				ret = -ENOENT;
-				goto out;
+				dir = btrfs_iget_logging(parent_objectid, root);
+				if (IS_ERR(dir)) {
+					ret = PTR_ERR(dir);
+					dir = NULL;
+					goto out;
+				}
 			}
 		} else {
 			ret = ref_get_fields(eb, ref_ptr, &name, &ref_index);
···
 			break;
 
 		btrfs_release_path(path);
-		inode = read_one_inode(root, key.offset);
-		if (!inode) {
-			ret = -EIO;
+		inode = btrfs_iget_logging(key.offset, root);
+		if (IS_ERR(inode)) {
+			ret = PTR_ERR(inode);
 			break;
 		}
 
···
 	struct btrfs_inode *inode;
 	struct inode *vfs_inode;
 
-	inode = read_one_inode(root, objectid);
-	if (!inode)
-		return -EIO;
+	inode = btrfs_iget_logging(objectid, root);
+	if (IS_ERR(inode))
+		return PTR_ERR(inode);
 
 	vfs_inode = &inode->vfs_inode;
 	key.objectid = BTRFS_TREE_LOG_FIXUP_OBJECTID;
···
 	struct btrfs_inode *dir;
 	int ret;
 
-	inode = read_one_inode(root, location->objectid);
-	if (!inode)
-		return -ENOENT;
+	inode = btrfs_iget_logging(location->objectid, root);
+	if (IS_ERR(inode))
+		return PTR_ERR(inode);
 
-	dir = read_one_inode(root, dirid);
-	if (!dir) {
+	dir = btrfs_iget_logging(dirid, root);
+	if (IS_ERR(dir)) {
 		iput(&inode->vfs_inode);
-		return -EIO;
+		return PTR_ERR(dir);
 	}
 
 	ret = btrfs_add_link(trans, dir, inode, name, 1, index);
···
 	bool update_size = true;
 	bool name_added = false;
 
-	dir = read_one_inode(root, key->objectid);
-	if (!dir)
-		return -EIO;
+	dir = btrfs_iget_logging(key->objectid, root);
+	if (IS_ERR(dir))
+		return PTR_ERR(dir);
 
 	ret = read_alloc_one_name(eb, di + 1, btrfs_dir_name_len(eb, di), &name);
 	if (ret)
···
 	btrfs_dir_item_key_to_cpu(eb, di, &location);
 	btrfs_release_path(path);
 	btrfs_release_path(log_path);
-	inode = read_one_inode(root, location.objectid);
-	if (!inode) {
-		ret = -EIO;
+	inode = btrfs_iget_logging(location.objectid, root);
+	if (IS_ERR(inode)) {
+		ret = PTR_ERR(inode);
+		inode = NULL;
 		goto out;
 	}
 
···
 	if (!log_path)
 		return -ENOMEM;
 
-	dir = read_one_inode(root, dirid);
-	/* it isn't an error if the inode isn't there, that can happen
-	 * because we replay the deletes before we copy in the inode item
-	 * from the log
+	dir = btrfs_iget_logging(dirid, root);
+	/*
+	 * It isn't an error if the inode isn't there, that can happen because
+	 * we replay the deletes before we copy in the inode item from the log.
 	 */
-	if (!dir) {
+	if (IS_ERR(dir)) {
 		btrfs_free_path(log_path);
-		return 0;
+		ret = PTR_ERR(dir);
+		if (ret == -ENOENT)
+			ret = 0;
+		return ret;
 	}
 
 	range_start = 0;
···
 				struct btrfs_inode *inode;
 				u64 from;
 
-				inode = read_one_inode(root, key.objectid);
-				if (!inode) {
-					ret = -EIO;
+				inode = btrfs_iget_logging(key.objectid, root);
+				if (IS_ERR(inode)) {
+					ret = PTR_ERR(inode);
 					break;
 				}
 				from = ALIGN(i_size_read(&inode->vfs_inode),
···
  * full log sync.
  * Also we don't need to worry with renames, since btrfs_rename() marks the log
  * for full commit when renaming a subvolume.
+ *
+ * Must be called before creating the subvolume entry in its parent directory.
  */
 void btrfs_record_new_subvolume(const struct btrfs_trans_handle *trans,
 				struct btrfs_inode *dir)

fs/eventpoll.c

···
 	};
 
 	/* List header used to link this structure to the eventpoll ready list */
-	struct list_head rdllink;
-
-	/*
-	 * Works together "struct eventpoll"->ovflist in keeping the
-	 * single linked chain of items.
-	 */
-	struct epitem *next;
+	struct llist_node rdllink;
 
 	/* The file descriptor information this item refers to */
 	struct epoll_filefd ffd;
···
 	/* Wait queue used by file->poll() */
 	wait_queue_head_t poll_wait;
 
-	/* List of ready file descriptors */
-	struct list_head rdllist;
-
-	/* Lock which protects rdllist and ovflist */
-	rwlock_t lock;
+	/*
+	 * List of ready file descriptors. Adding to this list is lockless. Items can be removed
+	 * only with eventpoll::mtx
+	 */
+	struct llist_head rdllist;
 
 	/* RB tree root used to store monitored fd structs */
 	struct rb_root_cached rbr;
-
-	/*
-	 * This is a single linked list that chains all the "struct epitem" that
-	 * happened while transferring ready events to userspace w/out
-	 * holding ->lock.
-	 */
-	struct epitem *ovflist;
 
 	/* wakeup_source used when ep_send_events or __ep_eventpoll_poll is running */
 	struct wakeup_source *ws;
···
 	        (p1->file < p2->file ? -1 : p1->fd - p2->fd));
 }
 
-/* Tells us if the item is currently linked */
-static inline int ep_is_linked(struct epitem *epi)
+/*
+ * Add the item to its container eventpoll's rdllist; do nothing if the item is already on rdllist.
+ */
+static void epitem_ready(struct epitem *epi)
 {
-	return !list_empty(&epi->rdllink);
+	if (&epi->rdllink == cmpxchg(&epi->rdllink.next, &epi->rdllink, NULL))
+		llist_add(&epi->rdllink, &epi->ep->rdllist);
+
 }
 
 static inline struct eppoll_entry *ep_pwq_from_wait(wait_queue_entry_t *p)
···
  *
  * @ep: Pointer to the eventpoll context.
  *
- * Return: a value different than %zero if ready events are available,
- *          or %zero otherwise.
+ * Return: true if ready events might be available, false otherwise.
  */
-static inline int ep_events_available(struct eventpoll *ep)
+static inline bool ep_events_available(struct eventpoll *ep)
 {
-	return !list_empty_careful(&ep->rdllist) ||
-		READ_ONCE(ep->ovflist) != EP_UNACTIVE_PTR;
+	bool available;
+	int locked;
+
+	locked = mutex_trylock(&ep->mtx);
+	if (!locked) {
+		/*
+		 * The lock held and someone might have removed all items while inspecting it. The
+		 * llist_empty() check in this case is futile. Assume that something is enqueued and
+		 * let ep_try_send_events() figure it out.
+		 */
+		return true;
+	}
+
+	available = !llist_empty(&ep->rdllist);
+	mutex_unlock(&ep->mtx);
+	return available;
 }
 
 #ifdef CONFIG_NET_RX_BUSY_POLL
···
 	rcu_read_unlock();
 }
 
-
-/*
- * ep->mutex needs to be held because we could be hit by
- * eventpoll_release_file() and epoll_ctl().
- */
-static void ep_start_scan(struct eventpoll *ep, struct list_head *txlist)
-{
-	/*
-	 * Steal the ready list, and re-init the original one to the
-	 * empty list. Also, set ep->ovflist to NULL so that events
-	 * happening while looping w/out locks, are not lost. We cannot
-	 * have the poll callback to queue directly on ep->rdllist,
-	 * because we want the "sproc" callback to be able to do it
-	 * in a lockless way.
-	 */
-	lockdep_assert_irqs_enabled();
-	write_lock_irq(&ep->lock);
-	list_splice_init(&ep->rdllist, txlist);
-	WRITE_ONCE(ep->ovflist, NULL);
-	write_unlock_irq(&ep->lock);
-}
-
-static void ep_done_scan(struct eventpoll *ep,
-			 struct list_head *txlist)
-{
-	struct epitem *epi, *nepi;
-
-	write_lock_irq(&ep->lock);
-	/*
-	 * During the time we spent inside the "sproc" callback, some
-	 * other events might have been queued by the poll callback.
-	 * We re-insert them inside the main ready-list here.
-	 */
-	for (nepi = READ_ONCE(ep->ovflist); (epi = nepi) != NULL;
-	     nepi = epi->next, epi->next = EP_UNACTIVE_PTR) {
-		/*
-		 * We need to check if the item is already in the list.
-		 * During the "sproc" callback execution time, items are
-		 * queued into ->ovflist but the "txlist" might already
-		 * contain them, and the list_splice() below takes care of them.
-		 */
-		if (!ep_is_linked(epi)) {
-			/*
-			 * ->ovflist is LIFO, so we have to reverse it in order
-			 * to keep in FIFO.
-			 */
-			list_add(&epi->rdllink, &ep->rdllist);
-			ep_pm_stay_awake(epi);
-		}
-	}
-	/*
-	 * We need to set back ep->ovflist to EP_UNACTIVE_PTR, so that after
-	 * releasing the lock, events will be queued in the normal way inside
-	 * ep->rdllist.
-	 */
-	WRITE_ONCE(ep->ovflist, EP_UNACTIVE_PTR);
-
-	/*
-	 * Quickly re-inject items left on "txlist".
-	 */
-	list_splice(txlist, &ep->rdllist);
-	__pm_relax(ep->ws);
-
-	if (!list_empty(&ep->rdllist)) {
-		if (waitqueue_active(&ep->wq))
-			wake_up(&ep->wq);
-	}
-
-	write_unlock_irq(&ep->lock);
-}
-
 static void ep_get(struct eventpoll *ep)
 {
 	refcount_inc(&ep->refcount);
···
 static bool __ep_remove(struct eventpoll *ep, struct epitem *epi, bool force)
 {
 	struct file *file = epi->ffd.file;
+	struct llist_node *put_back_last;
 	struct epitems_head *to_free;
 	struct hlist_head *head;
+	LLIST_HEAD(put_back);
 
-	lockdep_assert_irqs_enabled();
+	lockdep_assert_held(&ep->mtx);
 
 	/*
 	 * Removes poll wait queue hooks.
···
 
 	rb_erase_cached(&epi->rbn, &ep->rbr);
 
-	write_lock_irq(&ep->lock);
-	if (ep_is_linked(epi))
-		list_del_init(&epi->rdllink);
-	write_unlock_irq(&ep->lock);
+	if (llist_on_list(&epi->rdllink)) {
+		put_back_last = NULL;
+		while (true) {
+			struct llist_node *n = llist_del_first(&ep->rdllist);
+
+			if (&epi->rdllink == n || WARN_ON(!n))
+				break;
+			if (!put_back_last)
+				put_back_last = n;
+			__llist_add(n, &put_back);
+		}
+		if (put_back_last)
+			llist_add_batch(put_back.first, put_back_last, &ep->rdllist);
+	}
 
 	wakeup_source_unregister(ep_wakeup_source(epi));
 	/*
···
 	kfree_rcu(epi, rcu);
 
 	percpu_counter_dec(&ep->user->epoll_watches);
-	return ep_refcount_dec_and_test(ep);
+	return true;
 }
 
 /*
···
  */
 static void ep_remove_safe(struct eventpoll *ep, struct epitem *epi)
 {
-	WARN_ON_ONCE(__ep_remove(ep, epi, false));
+	if (__ep_remove(ep, epi, false))
+		WARN_ON_ONCE(ep_refcount_dec_and_test(ep));
 }
 
 static void ep_clear_and_put(struct eventpoll *ep)
 {
 	struct rb_node *rbp, *next;
 	struct epitem *epi;
-	bool dispose;
 
 	/* We need to release all tasks waiting for these file */
 	if (waitqueue_active(&ep->poll_wait))
···
 		cond_resched();
 	}
 
-	dispose = ep_refcount_dec_and_test(ep);
 	mutex_unlock(&ep->mtx);
-
-	if (dispose)
+	if (ep_refcount_dec_and_test(ep))
 		ep_free(ep);
 }
 
···
 static __poll_t __ep_eventpoll_poll(struct file *file, poll_table *wait, int depth)
 {
 	struct eventpoll *ep = file->private_data;
-	LIST_HEAD(txlist);
-	struct epitem *epi, *tmp;
+	struct wakeup_source *ws;
+	struct llist_node *n;
+	struct epitem *epi;
 	poll_table pt;
 	__poll_t res = 0;
 
···
 	 * the ready list.
 	 */
 	mutex_lock_nested(&ep->mtx, depth);
-	ep_start_scan(ep, &txlist);
-	list_for_each_entry_safe(epi, tmp, &txlist, rdllink) {
+	while (true) {
+		n = llist_del_first_init(&ep->rdllist);
+		if (!n)
+			break;
+
+		epi = llist_entry(n, struct epitem, rdllink);
+
 		if (ep_item_poll(epi, &pt, depth + 1)) {
 			res = EPOLLIN | EPOLLRDNORM;
+			epitem_ready(epi);
 			break;
 		} else {
 			/*
-			 * Item has been dropped into the ready list by the poll
-			 * callback, but it's not actually ready, as far as
-			 * caller requested events goes. We can remove it here.
+			 * We need to activate ep before deactivating epi, to prevent autosuspend
+			 * just in case epi becomes active after ep_item_poll() above.
+			 *
+			 * This is similar to ep_send_events().
 			 */
+			ws = ep_wakeup_source(epi);
+			if (ws) {
+				if (ws->active)
+					__pm_stay_awake(ep->ws);
+				__pm_relax(ws);
+			}
 			__pm_relax(ep_wakeup_source(epi));
-			list_del_init(&epi->rdllink);
+
+			/* Just in case epi becomes active right before __pm_relax() */
+			if (unlikely(ep_item_poll(epi, &pt, depth + 1)))
+				ep_pm_stay_awake(epi);
+
+			__pm_relax(ep->ws);
 		}
 	}
-	ep_done_scan(ep, &txlist);
 	mutex_unlock(&ep->mtx);
 	return res;
 }
···
 		dispose = __ep_remove(ep, epi, true);
 		mutex_unlock(&ep->mtx);
 
-		if (dispose)
+		if (dispose && ep_refcount_dec_and_test(ep))
 			ep_free(ep);
 		goto again;
 	}
···
 		return -ENOMEM;
 
 	mutex_init(&ep->mtx);
-	rwlock_init(&ep->lock);
 	init_waitqueue_head(&ep->wq);
 	init_waitqueue_head(&ep->poll_wait);
-	INIT_LIST_HEAD(&ep->rdllist);
+	init_llist_head(&ep->rdllist);
 	ep->rbr = RB_ROOT_CACHED;
-	ep->ovflist = EP_UNACTIVE_PTR;
 	ep->user = get_current_user();
 	refcount_set(&ep->refcount, 1);
 
···
 #endif /* CONFIG_KCMP */
 
 /*
- * Adds a new entry to the tail of the list in a lockless way, i.e.
- * multiple CPUs are allowed to call this function concurrently.
- *
- * Beware: it is necessary to prevent any other modifications of the
- *         existing list until all changes are completed, in other words
- *         concurrent list_add_tail_lockless() calls should be protected
- *         with a read lock, where write lock acts as a barrier which
- *         makes sure all list_add_tail_lockless() calls are fully
- *         completed.
- *
- *        Also an element can be locklessly added to the list only in one
- *        direction i.e. either to the tail or to the head, otherwise
- *        concurrent access will corrupt the list.
- *
- * Return: %false if element has been already added to the list, %true
- * otherwise.
- */
-static inline bool list_add_tail_lockless(struct list_head *new,
-					  struct list_head *head)
-{
-	struct list_head *prev;
-
-	/*
-	 * This is simple 'new->next = head' operation, but cmpxchg()
-	 * is used in order to detect that same element has been just
-	 * added to the list from another CPU: the winner observes
-	 * new->next == new.
-	 */
-	if (!try_cmpxchg(&new->next, &new, head))
-		return false;
-
-	/*
-	 * Initially ->next of a new element must be updated with the head
-	 * (we are inserting to the tail) and only then pointers are atomically
-	 * exchanged.  XCHG guarantees memory ordering, thus ->next should be
-	 * updated before pointers are actually swapped and pointers are
-	 * swapped before prev->next is updated.
-	 */
-
-	prev = xchg(&head->prev, new);
-
-	/*
-	 * It is safe to modify prev->next and new->prev, because a new element
-	 * is added only to the tail and new->next is updated before XCHG.
-	 */
-
-	prev->next = new;
-	new->prev = prev;
-
-	return true;
-}
-
-/*
- * Chains a new epi entry to the tail of the ep->ovflist in a lockless way,
- * i.e. multiple CPUs are allowed to call this function concurrently.
- *
- * Return: %false if epi element has been already chained, %true otherwise.
- */
-static inline bool chain_epi_lockless(struct epitem *epi)
-{
-	struct eventpoll *ep = epi->ep;
-
-	/* Fast preliminary check */
-	if (epi->next != EP_UNACTIVE_PTR)
-		return false;
-
-	/* Check that the same epi has not been just chained from another CPU */
-	if (cmpxchg(&epi->next, EP_UNACTIVE_PTR, NULL) != EP_UNACTIVE_PTR)
-		return false;
-
-	/* Atomically exchange tail */
-	epi->next = xchg(&ep->ovflist, epi);
-
-	return true;
-}
-
-/*
  * This is the callback that is passed to the wait queue wakeup
  * mechanism. It is called by the stored file descriptors when they
  * have events to report.
- *
- * This callback takes a read lock in order not to contend with concurrent
- * events from another file descriptor, thus all modifications to ->rdllist
- * or ->ovflist are lockless.  Read lock is paired with the write lock from
- * ep_start/done_scan(), which stops all list modifications and guarantees
- * that lists state is seen correctly.
  *
  * Another thing worth to mention is that ep_poll_callback() can be called
  * concurrently for the same @epi from different CPUs if poll table was inited
···
  */
 static int ep_poll_callback(wait_queue_entry_t *wait, unsigned mode, int sync, void *key)
 {
-	int pwake = 0;
 	struct epitem *epi = ep_item_from_wait(wait);
 	struct eventpoll *ep = epi->ep;
 	__poll_t pollflags = key_to_poll(key);
-	unsigned long flags;
 	int ewake = 0;
-
-	read_lock_irqsave(&ep->lock, flags);
 
 	ep_set_busy_poll_napi_id(epi);
 
···
 	 * until the next EPOLL_CTL_MOD will be issued.
 	 */
 	if (!(epi->event.events & ~EP_PRIVATE_BITS))
-		goto out_unlock;
+		goto out;
 
 	/*
 	 * Check the events coming with the callback. At this stage, not
···
 	 * test for "key" != NULL before the event match test.
 	 */
 	if (pollflags && !(pollflags & epi->event.events))
-		goto out_unlock;
+		goto out;
 
-	/*
-	 * If we are transferring events to userspace, we can hold no locks
-	 * (because we're accessing user memory, and because of linux f_op->poll()
-	 * semantics). All the events that happen during that period of time are
-	 * chained in ep->ovflist and requeued later on.
-	 */
-	if (READ_ONCE(ep->ovflist) != EP_UNACTIVE_PTR) {
-		if (chain_epi_lockless(epi))
-			ep_pm_stay_awake_rcu(epi);
-	} else if (!ep_is_linked(epi)) {
-		/* In the usual case, add event to ready list. */
-		if (list_add_tail_lockless(&epi->rdllink, &ep->rdllist))
-			ep_pm_stay_awake_rcu(epi);
-	}
+	ep_pm_stay_awake_rcu(epi);
+	epitem_ready(epi);
 
 	/*
 	 * Wake up ( if active ) both the eventpoll wait list and the ->poll()
···
 			wake_up(&ep->wq);
 	}
 	if (waitqueue_active(&ep->poll_wait))
-		pwake++;
-
-out_unlock:
-	read_unlock_irqrestore(&ep->lock, flags);
-
-	/* We have to call this outside the lock */
-	if (pwake)
 		ep_poll_safewake(ep, epi, pollflags & EPOLL_URING_WAKE);
 
+out:
 	if (!(epi->event.events & EPOLLEXCLUSIVE))
 		ewake = 1;
 
···
 	if (is_file_epoll(tfile))
 		tep = tfile->private_data;
 
-	lockdep_assert_irqs_enabled();
-
 	if (unlikely(percpu_counter_compare(&ep->user->epoll_watches,
 					    max_user_watches) >= 0))
 		return -ENOSPC;
···
 	}
 
 	/* Item initialization follow here ... */
-	INIT_LIST_HEAD(&epi->rdllink);
+	init_llist_node(&epi->rdllink);
 	epi->ep = ep;
 	ep_set_ffd(&epi->ffd, tfile, fd);
 	epi->event = *event;
-	epi->next = EP_UNACTIVE_PTR;
 
 	if (tep)
 		mutex_lock_nested(&tep->mtx, 1);
···
 		return -ENOMEM;
 	}
 
-	/* We have to drop the new item inside our item list to keep track of it */
-	write_lock_irq(&ep->lock);
-
 	/* record NAPI ID of new item if present */
 	ep_set_busy_poll_napi_id(epi);
 
 	/* If the file is already "ready" we drop it inside the ready list */
-	if (revents && !ep_is_linked(epi)) {
-		list_add_tail(&epi->rdllink, &ep->rdllist);
+	if (revents) {
 		ep_pm_stay_awake(epi);
+		epitem_ready(epi);
 
 		/* Notify waiting tasks that events are available */
 		if (waitqueue_active(&ep->wq))
···
 		if (waitqueue_active(&ep->poll_wait))
 			pwake++;
 	}
-
-	write_unlock_irq(&ep->lock);
 
 	/* We have to call this outside the lock */
 	if (pwake)
···
 static int ep_modify(struct eventpoll *ep, struct epitem *epi,
 		     const struct epoll_event *event)
 {
-	int pwake = 0;
 	poll_table pt;
-
-	lockdep_assert_irqs_enabled();
 
 	init_poll_funcptr(&pt, NULL);
 
···
 	 * list, push it inside.
 	 */
 	if (ep_item_poll(epi, &pt, 1)) {
-		write_lock_irq(&ep->lock);
-		if (!ep_is_linked(epi)) {
-			list_add_tail(&epi->rdllink, &ep->rdllist);
-			ep_pm_stay_awake(epi);
+		ep_pm_stay_awake(epi);
+		epitem_ready(epi);
 
-			/* Notify waiting tasks that events are available */
-			if (waitqueue_active(&ep->wq))
-				wake_up(&ep->wq);
-			if (waitqueue_active(&ep->poll_wait))
-				pwake++;
-		}
-		write_unlock_irq(&ep->lock);
+		/* Notify waiting tasks that events are available */
+		if (waitqueue_active(&ep->wq))
+			wake_up(&ep->wq);
+		if (waitqueue_active(&ep->poll_wait))
+			ep_poll_safewake(ep, NULL, 0);
 	}
-
-	/* We have to call this outside the lock */
-	if (pwake)
-		ep_poll_safewake(ep, NULL, 0);
 
 	return 0;
 }
···
 			  struct epoll_event __user *events, int maxevents)
 {
 	struct epitem *epi, *tmp;
-	LIST_HEAD(txlist);
+	LLIST_HEAD(txlist);
 	poll_table pt;
 	int res = 0;
 
···
 	init_poll_funcptr(&pt, NULL);
 
 	mutex_lock(&ep->mtx);
-	ep_start_scan(ep, &txlist);
 
-	/*
-	 * We can loop without lock because we are passed a task private list.
-	 * Items cannot vanish during the loop we are holding ep->mtx.
-	 */
-	list_for_each_entry_safe(epi, tmp, &txlist, rdllink) {
+	while (res < maxevents) {
 		struct wakeup_source *ws;
+		struct llist_node *n;
 		__poll_t revents;
 
-		if (res >= maxevents)
+		n = llist_del_first(&ep->rdllist);
+		if (!n)
 			break;
+
+		epi = llist_entry(n, struct epitem, rdllink);
 
 		/*
 		 * Activate ep->ws before deactivating epi->ws to prevent
···
 			__pm_relax(ws);
 		}
 
-		list_del_init(&epi->rdllink);
-
 		/*
 		 * If the event mask intersect the caller-requested one,
 		 * deliver the event to userspace. Again, we are holding ep->mtx,
 		 * so no operations coming from userspace can change the item.
 		 */
 		revents = ep_item_poll(epi, &pt, 1);
-		if (!revents)
+		if (!revents) {
+			init_llist_node(n);
+
+			/*
+			 * Just in case epi becomes ready after ep_item_poll() above, but before
+			 * init_llist_node(). Make sure to add it to the ready list, otherwise an
+			 * event may be lost.
+			 */
+			if (unlikely(ep_item_poll(epi, &pt, 1))) {
+				ep_pm_stay_awake(epi);
+				epitem_ready(epi);
+			}
 			continue;
+		}
 
 		events = epoll_put_uevent(revents, epi->event.data, events);
 		if (!events) {
-			list_add(&epi->rdllink, &txlist);
-			ep_pm_stay_awake(epi);
+			llist_add(&epi->rdllink, &ep->rdllist);
 			if (!res)
 				res = -EFAULT;
 			break;
···
 		res++;
 		if (epi->event.events & EPOLLONESHOT)
 			epi->event.events &= EP_PRIVATE_BITS;
-		else if (!(epi->event.events & EPOLLET)) {
+		__llist_add(n, &txlist);
+	}
+
+	llist_for_each_entry_safe(epi, tmp, txlist.first, rdllink) {
+		init_llist_node(&epi->rdllink);
+
+		if (!(epi->event.events & EPOLLET)) {
 			/*
-			 * If this file has been added with Level
-			 * Trigger mode, we need to insert back inside
-			 * the ready list, so that the next call to
-			 * epoll_wait() will check again the events
-			 * availability. At this point, no one can insert
-			 * into ep->rdllist besides us. The epoll_ctl()
-			 * callers are locked out by
-			 * ep_send_events() holding "mtx" and the
-			 * poll callback will queue them in ep->ovflist.
+			 * If this file has been added with Level Trigger mode, we need to insert
+			 * back inside the ready list, so that the next call to epoll_wait() will
+			 * check again the events availability.
 			 */
-			list_add_tail(&epi->rdllink, &ep->rdllist);
 			ep_pm_stay_awake(epi);
+			epitem_ready(epi);
 		}
 	}
-	ep_done_scan(ep, &txlist);
+
+	__pm_relax(ep->ws);
 	mutex_unlock(&ep->mtx);
+
+	if (!llist_empty(&ep->rdllist)) {
+		if (waitqueue_active(&ep->wq))
+			wake_up(&ep->wq);
+	}
 
 	return res;
 }
···
 	wait_queue_entry_t wait;
 	ktime_t expires, *to = NULL;
 
-	lockdep_assert_irqs_enabled();
-
 	if (timeout && (timeout->tv_sec | timeout->tv_nsec)) {
 		slack = select_estimate_accuracy(timeout);
 		to = &expires;
···
 		init_wait(&wait);
 		wait.func = ep_autoremove_wake_function;
 
-		write_lock_irq(&ep->lock);
-		/*
-		 * Barrierless variant, waitqueue_active() is called under
-		 * the same lock on wakeup ep_poll_callback() side, so it
-		 * is safe to avoid an explicit barrier.
-		 */
-		__set_current_state(TASK_INTERRUPTIBLE);
+		prepare_to_wait_exclusive(&ep->wq, &wait, TASK_INTERRUPTIBLE);
 
-		/*
-		 * Do the final check under the lock. ep_start/done_scan()
-		 * plays with two lists (->rdllist and ->ovflist) and there
-		 * is always a race when both lists are empty for short
-		 * period of time although events are pending, so lock is
-		 * important.
-		 */
-		eavail = ep_events_available(ep);
-		if (!eavail)
-			__add_wait_queue_exclusive(&ep->wq, &wait);
-
-		write_unlock_irq(&ep->lock);
-
-		if (!eavail)
+		if (!ep_events_available(ep))
 			timed_out = !ep_schedule_timeout(to) ||
 				!schedule_hrtimeout_range(to, slack,
 							  HRTIMER_MODE_ABS);
-		__set_current_state(TASK_RUNNING);
 
-		/*
-		 * We were woken up, thus go and try to harvest some events.
-		 * If timed out and still on the wait queue, recheck eavail
-		 * carefully under lock, below.
-		 */
-		eavail = 1;
-
-		if (!list_empty_careful(&wait.entry)) {
-			write_lock_irq(&ep->lock);
-			/*
-			 * If the thread timed out and is not on the wait queue,
-			 * it means that the thread was woken up after its
-			 * timeout expired before it could reacquire the lock.
-			 * Thus, when wait.entry is empty, it needs to harvest
-			 * events.
-			 */
-			if (timed_out)
-				eavail = list_empty(&wait.entry);
-			__remove_wait_queue(&ep->wq, &wait);
-			write_unlock_irq(&ep->lock);
-		}
+		finish_wait(&ep->wq, &wait);
+		eavail = ep_events_available(ep);
 	}
 }
 

fs/exec.c

···
 
 bool path_noexec(const struct path *path)
 {
+	/* If it's an anonymous inode make sure that we catch any shenanigans. */
+	VFS_WARN_ON_ONCE(IS_ANON_FILE(d_inode(path->dentry)) &&
+			 !(path->mnt->mnt_sb->s_iflags & SB_I_NOEXEC));
 	return (path->mnt->mnt_flags & MNT_NOEXEC) ||
 	       (path->mnt->mnt_sb->s_iflags & SB_I_NOEXEC);
 }
···
 	if (IS_ERR(file))
 		return file;
 
+	if (path_noexec(&file->f_path))
+		return ERR_PTR(-EACCES);
+
 	/*
 	 * In the past the regular type check was here. It moved to may_open() in
 	 * 633fb6ac3980 ("exec: move S_ISREG() check earlier"). Since then it is
 	 * an invariant that all non-regular files error out before we get here.
 	 */
-	if (WARN_ON_ONCE(!S_ISREG(file_inode(file)->i_mode)) ||
-	    path_noexec(&file->f_path))
+	if (WARN_ON_ONCE(!S_ISREG(file_inode(file)->i_mode)))
 		return ERR_PTR(-EACCES);
 
 	err = exe_file_deny_write_access(file);

fs/fuse/file.c

···
 static ssize_t fuse_fill_write_pages(struct fuse_io_args *ia,
 				     struct address_space *mapping,
 				     struct iov_iter *ii, loff_t pos,
-				     unsigned int max_pages)
+				     unsigned int max_folios)
 {
 	struct fuse_args_pages *ap = &ia->ap;
 	struct fuse_conn *fc = get_fuse_conn(mapping->host);
···
 	int err = 0;
 
 	num = min(iov_iter_count(ii), fc->max_write);
-	num = min(num, max_pages << PAGE_SHIFT);
 
 	ap->args.in_pages = true;
 	ap->descs[0].offset = offset;
 
-	while (num) {
+	while (num && ap->num_folios < max_folios) {
 		size_t tmp;
 		struct folio *folio;
 		pgoff_t index = pos >> PAGE_SHIFT;

fs/libfs.c

···
 	 */
 	inode->i_state = I_DIRTY;
 	/*
-	 * Historically anonymous inodes didn't have a type at all and
-	 * userspace has come to rely on this. Internally they're just
-	 * regular files but S_IFREG is masked off when reporting
-	 * information to userspace.
+	 * Historically anonymous inodes don't have a type at all and
+	 * userspace has come to rely on this.
 	 */
-	inode->i_mode = S_IFREG | S_IRUSR | S_IWUSR;
+	inode->i_mode = S_IRUSR | S_IWUSR;
 	inode->i_uid = current_fsuid();
 	inode->i_gid = current_fsgid();
 	inode->i_flags |= S_PRIVATE | S_ANON_INODE;

fs/namei.c

···
 			return -EACCES;
 		break;
 	default:
-		VFS_BUG_ON_INODE(1, inode);
+		VFS_BUG_ON_INODE(!IS_ANON_FILE(inode), inode);
 	}
 
 	error = inode_permission(idmap, inode, MAY_OPEN | acc_mode);

fs/netfs/buffered_write.c

···
  * data written into the pagecache until we can find out from the server what
  * the values actually are.
  */
-static void netfs_update_i_size(struct netfs_inode *ctx, struct inode *inode,
-				loff_t i_size, loff_t pos, size_t copied)
+void netfs_update_i_size(struct netfs_inode *ctx, struct inode *inode,
+			 loff_t pos, size_t copied)
 {
+	loff_t i_size, end = pos + copied;
 	blkcnt_t add;
 	size_t gap;
 
+	if (end <= i_size_read(inode))
+		return;
+
 	if (ctx->ops->update_i_size) {
-		ctx->ops->update_i_size(inode, pos);
+		ctx->ops->update_i_size(inode, end);
 		return;
 	}
 
-	i_size_write(inode, pos);
+	spin_lock(&inode->i_lock);
+
+	i_size = i_size_read(inode);
+	if (end > i_size) {
+		i_size_write(inode, end);
 #if IS_ENABLED(CONFIG_FSCACHE)
-	fscache_update_cookie(ctx->cache, NULL, &pos);
+		fscache_update_cookie(ctx->cache, NULL, &end);
 #endif
 
-	gap = SECTOR_SIZE - (i_size & (SECTOR_SIZE - 1));
-	if (copied > gap) {
-		add = DIV_ROUND_UP(copied - gap, SECTOR_SIZE);
+		gap = SECTOR_SIZE - (i_size & (SECTOR_SIZE - 1));
+		if (copied > gap) {
+			add = DIV_ROUND_UP(copied - gap, SECTOR_SIZE);
 
-		inode->i_blocks = min_t(blkcnt_t,
-					DIV_ROUND_UP(pos, SECTOR_SIZE),
-					inode->i_blocks + add);
+			inode->i_blocks = min_t(blkcnt_t,
+						DIV_ROUND_UP(end, SECTOR_SIZE),
+						inode->i_blocks + add);
+		}
 	}
+	spin_unlock(&inode->i_lock);
 }
 
 /**
···
 	struct folio *folio = NULL, *writethrough = NULL;
 	unsigned int bdp_flags = (iocb->ki_flags & IOCB_NOWAIT) ? BDP_ASYNC : 0;
 	ssize_t written = 0, ret, ret2;
-	loff_t i_size, pos = iocb->ki_pos;
+	loff_t pos = iocb->ki_pos;
 	size_t max_chunk = mapping_max_folio_size(mapping);
 	bool maybe_trouble = false;
 
···
 		flush_dcache_folio(folio);
 
 		/* Update the inode size if we moved the EOF marker */
+		netfs_update_i_size(ctx, inode, pos, copied);
 		pos += copied;
-		i_size = i_size_read(inode);
-		if (pos > i_size)
-			netfs_update_i_size(ctx, inode, i_size, pos, copied);
 		written += copied;
 
 		if (likely(!wreq)) {

fs/netfs/direct_write.c

···
 #include <linux/uio.h>
 #include "internal.h"
 
-static void netfs_cleanup_dio_write(struct netfs_io_request *wreq)
-{
-	struct inode *inode = wreq->inode;
-	unsigned long long end = wreq->start + wreq->transferred;
-
-	if (!wreq->error &&
-	    i_size_read(inode) < end) {
-		if (wreq->netfs_ops->update_i_size)
-			wreq->netfs_ops->update_i_size(inode, end);
-		else
-			i_size_write(inode, end);
-	}
-}
-
 /*
  * Perform an unbuffered write where we may have to do an RMW operation on an
  * encrypted file.  This can also be used for direct I/O writes.
···
 	if (async)
 		wreq->iocb = iocb;
 	wreq->len = iov_iter_count(&wreq->buffer.iter);
-	wreq->cleanup = netfs_cleanup_dio_write;
 	ret = netfs_unbuffered_write(wreq, is_sync_kiocb(iocb), wreq->len);
 	if (ret < 0) {
 		_debug("begin = %zd", ret);
···
 	}
 
 	if (!async) {
-		trace_netfs_rreq(wreq, netfs_rreq_trace_wait_ip);
 		ret = netfs_wait_for_write(wreq);
 		if (ret > 0)
 			iocb->ki_pos += ret;

fs/netfs/internal.h

···
 			     size_t offset, size_t len);
 
 /*
+ * buffered_write.c
+ */
+void netfs_update_i_size(struct netfs_inode *ctx, struct inode *inode,
+			 loff_t pos, size_t copied);
+
+/*
  * main.c
  */
 extern unsigned int netfs_debug;
···
 					enum netfs_rreq_trace trace)
 {
 	if (test_bit(rreq_flag, &rreq->flags)) {
-		trace_netfs_rreq(rreq, trace);
 		clear_bit_unlock(rreq_flag, &rreq->flags);
 		smp_mb__after_atomic(); /* Set flag before task state */
+		trace_netfs_rreq(rreq, trace);
 		wake_up(&rreq->waitq);
 	}
+}
+
+/*
+ * Test the NETFS_RREQ_IN_PROGRESS flag, inserting an appropriate barrier.
+ */
+static inline bool netfs_check_rreq_in_progress(const struct netfs_io_request *rreq)
+{
+	/* Order read of flags before read of anything else, such as error. */
+	return test_bit_acquire(NETFS_RREQ_IN_PROGRESS, &rreq->flags);
+}
+
+/*
+ * Test the NETFS_SREQ_IN_PROGRESS flag, inserting an appropriate barrier.
+ */
+static inline bool netfs_check_subreq_in_progress(const struct netfs_io_subrequest *subreq)
+{
+	/* Order read of flags before read of anything else, such as error. */
+	return test_bit_acquire(NETFS_SREQ_IN_PROGRESS, &subreq->flags);
 }
 
 /*

fs/netfs/main.c

···
 
 	if (v == &netfs_io_requests) {
 		seq_puts(m,
-			 "REQUEST  OR REF FL ERR  OPS COVERAGE\n"
-			 "======== == === == ==== === =========\n"
+			 "REQUEST  OR REF FLAG ERR  OPS COVERAGE\n"
+			 "======== == === ==== ==== === =========\n"
 			 );
 		return 0;
 	}
 
 	rreq = list_entry(v, struct netfs_io_request, proc_link);
 	seq_printf(m,
-		   "%08x %s %3d %2lx %4ld %3d @%04llx %llx/%llx",
+		   "%08x %s %3d %4lx %4ld %3d @%04llx %llx/%llx",
 		   rreq->debug_id,
 		   netfs_origins[rreq->origin],
 		   refcount_read(&rreq->ref),

fs/netfs/misc.c

···
 	DEFINE_WAIT(myself);
 
 	list_for_each_entry(subreq, &stream->subrequests, rreq_link) {
-		if (!test_bit(NETFS_SREQ_IN_PROGRESS, &subreq->flags))
+		if (!netfs_check_subreq_in_progress(subreq))
 			continue;
 
-		trace_netfs_rreq(rreq, netfs_rreq_trace_wait_queue);
+		trace_netfs_rreq(rreq, netfs_rreq_trace_wait_quiesce);
 		for (;;) {
 			prepare_to_wait(&rreq->waitq, &myself, TASK_UNINTERRUPTIBLE);
 
-			if (!test_bit(NETFS_SREQ_IN_PROGRESS, &subreq->flags))
+			if (!netfs_check_subreq_in_progress(subreq))
 				break;
 
 			trace_netfs_sreq(subreq, netfs_sreq_trace_wait_for);
 			schedule();
-			trace_netfs_rreq(rreq, netfs_rreq_trace_woke_queue);
 		}
 	}
 
+	trace_netfs_rreq(rreq, netfs_rreq_trace_waited_quiesce);
 	finish_wait(&rreq->waitq, &myself);
 }
 
···
 static int netfs_collect_in_app(struct netfs_io_request *rreq,
 				bool (*collector)(struct netfs_io_request *rreq))
 {
-	bool need_collect = false, inactive = true;
+	bool need_collect = false, inactive = true, done = true;
+
+	if (!netfs_check_rreq_in_progress(rreq)) {
+		trace_netfs_rreq(rreq, netfs_rreq_trace_recollect);
+		return 1; /* Done */
+	}
 
 	for (int i = 0; i < NR_IO_STREAMS; i++) {
 		struct netfs_io_subrequest *subreq;
···
 						  struct netfs_io_subrequest,
 						  rreq_link);
 		if (subreq &&
-		    (!test_bit(NETFS_SREQ_IN_PROGRESS, &subreq->flags) ||
+		    (!netfs_check_subreq_in_progress(subreq) ||
 		     test_bit(NETFS_SREQ_MADE_PROGRESS, &subreq->flags))) {
 			need_collect = true;
 			break;
 		}
+		if (subreq || !test_bit(NETFS_RREQ_ALL_QUEUED, &rreq->flags))
+			done = false;
 	}
 
-	if (!need_collect && !inactive)
+	if (!need_collect && !inactive && !done)
 		return 0; /* Sleep */
 
 	__set_current_state(TASK_RUNNING);
···
 /*
  * Wait for a request to complete, successfully or otherwise.
  */
-static ssize_t netfs_wait_for_request(struct netfs_io_request *rreq,
-				      bool (*collector)(struct netfs_io_request *rreq))
+static ssize_t netfs_wait_for_in_progress(struct netfs_io_request *rreq,
+					  bool (*collector)(struct netfs_io_request *rreq))
 {
 	DEFINE_WAIT(myself);
 	ssize_t ret;
 
 	for (;;) {
-		trace_netfs_rreq(rreq, netfs_rreq_trace_wait_queue);
 		prepare_to_wait(&rreq->waitq, &myself, TASK_UNINTERRUPTIBLE);
 
 		if (!test_bit(NETFS_RREQ_OFFLOAD_COLLECTION, &rreq->flags)) {
···
 			case 1:
 				goto all_collected;
 			case 2:
+				if (!netfs_check_rreq_in_progress(rreq))
+					break;
+				cond_resched();
 				continue;
 			}
 		}
 
-		if (!test_bit(NETFS_RREQ_IN_PROGRESS, &rreq->flags))
+		if (!netfs_check_rreq_in_progress(rreq))
 			break;
 
+		trace_netfs_rreq(rreq, netfs_rreq_trace_wait_ip);
 		schedule();
-		trace_netfs_rreq(rreq, netfs_rreq_trace_woke_queue);
 	}
 
 all_collected:
+	trace_netfs_rreq(rreq, netfs_rreq_trace_waited_ip);
 	finish_wait(&rreq->waitq, &myself);
 
 	ret = rreq->error;
···
 
 ssize_t netfs_wait_for_read(struct netfs_io_request *rreq)
 {
-	return netfs_wait_for_request(rreq, netfs_read_collection);
+	return netfs_wait_for_in_progress(rreq, netfs_read_collection);
 }
 
 ssize_t netfs_wait_for_write(struct netfs_io_request *rreq)
 {
-	return netfs_wait_for_request(rreq, netfs_write_collection);
+	return netfs_wait_for_in_progress(rreq, netfs_write_collection);
 }
 
 /*
···
 {
 	DEFINE_WAIT(myself);
 
-	trace_netfs_rreq(rreq, netfs_rreq_trace_wait_pause);
-
 	for (;;) {
-		trace_netfs_rreq(rreq, netfs_rreq_trace_wait_queue);
+		trace_netfs_rreq(rreq, netfs_rreq_trace_wait_pause);
 		prepare_to_wait(&rreq->waitq, &myself, TASK_UNINTERRUPTIBLE);
 
 		if (!test_bit(NETFS_RREQ_OFFLOAD_COLLECTION, &rreq->flags)) {
···
 			case 1:
 				goto all_collected;
 			case 2:
+				if (!netfs_check_rreq_in_progress(rreq) ||
+				    !test_bit(NETFS_RREQ_PAUSE, &rreq->flags))
+					break;
+				cond_resched();
 				continue;
 			}
 		}
 
-		if (!test_bit(NETFS_RREQ_IN_PROGRESS, &rreq->flags) ||
+		if (!netfs_check_rreq_in_progress(rreq) ||
 		    !test_bit(NETFS_RREQ_PAUSE, &rreq->flags))
 			break;
 
 		schedule();
-		trace_netfs_rreq(rreq, netfs_rreq_trace_woke_queue);
 	}
 
 all_collected:
+	trace_netfs_rreq(rreq, netfs_rreq_trace_waited_pause);
 	finish_wait(&rreq->waitq, &myself);
 }
 

fs/netfs/read_collect.c

···
 			stream->collected_to = front->start;
 		}
 
-		if (test_bit(NETFS_SREQ_IN_PROGRESS, &front->flags))
+		if (netfs_check_subreq_in_progress(front))
 			notes |= HIT_PENDING;
 		smp_rmb(); /* Read counters after IN_PROGRESS flag. */
 		transferred = READ_ONCE(front->transferred);
···
 		spin_lock(&rreq->lock);
 
 		remove = front;
-		trace_netfs_sreq(front, netfs_sreq_trace_discard);
+		trace_netfs_sreq(front,
+				 notes & ABANDON_SREQ ?
+				 netfs_sreq_trace_abandoned : netfs_sreq_trace_consumed);
 		list_del_init(&front->rreq_link);
 		front = list_first_entry_or_null(&stream->subrequests,
 						 struct netfs_io_subrequest, rreq_link);
···
 
 	if (rreq->iocb) {
 		rreq->iocb->ki_pos += rreq->transferred;
-		if (rreq->iocb->ki_complete)
+		if (rreq->iocb->ki_complete) {
+			trace_netfs_rreq(rreq, netfs_rreq_trace_ki_complete);
 			rreq->iocb->ki_complete(
 				rreq->iocb, rreq->error ? rreq->error : rreq->transferred);
+		}
 	}
 	if (rreq->netfs_ops->done)
 		rreq->netfs_ops->done(rreq);
···
 
 	if (rreq->iocb) {
 		rreq->iocb->ki_pos += rreq->transferred;
-		if (rreq->iocb->ki_complete)
+		if (rreq->iocb->ki_complete) {
+			trace_netfs_rreq(rreq, netfs_rreq_trace_ki_complete);
 			rreq->iocb->ki_complete(
 				rreq->iocb, rreq->error ? rreq->error : rreq->transferred);
+		}
 	}
 	if (rreq->netfs_ops->done)
 		rreq->netfs_ops->done(rreq);
···
 	struct netfs_io_request *rreq = container_of(work, struct netfs_io_request, work);
 
 	netfs_see_request(rreq, netfs_rreq_trace_see_work);
-	if (test_bit(NETFS_RREQ_IN_PROGRESS, &rreq->flags)) {
+	if (netfs_check_rreq_in_progress(rreq)) {
 		if (netfs_read_collection(rreq))
 			/* Drop the ref from the IN_PROGRESS flag. */
 			netfs_put_request(rreq, netfs_rreq_trace_put_work_ip);

fs/netfs/write_collect.c

···
 			}
 
 			/* Stall if the front is still undergoing I/O. */
-			if (test_bit(NETFS_SREQ_IN_PROGRESS, &front->flags)) {
+			if (netfs_check_subreq_in_progress(front)) {
 				notes |= HIT_PENDING;
 				break;
 			}
···
 		ictx->ops->invalidate_cache(wreq);
 	}
 
-	if (wreq->cleanup)
-		wreq->cleanup(wreq);
+	if ((wreq->origin == NETFS_UNBUFFERED_WRITE ||
+	     wreq->origin == NETFS_DIO_WRITE) &&
+	    !wreq->error)
+		netfs_update_i_size(ictx, &ictx->inode, wreq->start, wreq->transferred);
 
 	if (wreq->origin == NETFS_DIO_WRITE &&
 	    wreq->mapping->nrpages) {
···
 	if (wreq->iocb) {
 		size_t written = min(wreq->transferred, wreq->len);
 		wreq->iocb->ki_pos += written;
-		if (wreq->iocb->ki_complete)
+		if (wreq->iocb->ki_complete) {
+			trace_netfs_rreq(wreq, netfs_rreq_trace_ki_complete);
 			wreq->iocb->ki_complete(
 				wreq->iocb, wreq->error ? wreq->error : written);
+		}
 		wreq->iocb = VFS_PTR_POISON;
 	}
 
···
 	struct netfs_io_request *rreq = container_of(work, struct netfs_io_request, work);
 
 	netfs_see_request(rreq, netfs_rreq_trace_see_work);
-	if (test_bit(NETFS_RREQ_IN_PROGRESS, &rreq->flags)) {
+	if (netfs_check_rreq_in_progress(rreq)) {
 		if (netfs_write_collection(rreq))
 			/* Drop the ref from the IN_PROGRESS flag. */
 			netfs_put_request(rreq, netfs_rreq_trace_put_work_ip);

fs/netfs/write_retry.c

···
 			subreq = netfs_alloc_subrequest(wreq);
 			subreq->source		= to->source;
 			subreq->start		= start;
-			subreq->debug_index	= atomic_inc_return(&wreq->subreq_counter);
 			subreq->stream_nr	= to->stream_nr;
 			subreq->retry_count	= 1;
 
 			trace_netfs_sreq_ref(wreq->debug_id, subreq->debug_index,
 					     refcount_read(&subreq->ref),
 					     netfs_sreq_trace_new);
-			netfs_get_subrequest(subreq, netfs_sreq_trace_get_resubmit);
+			trace_netfs_sreq(subreq, netfs_sreq_trace_split);
 
 			list_add(&subreq->rreq_link, &to->rreq_link);
 			to = list_next_entry(to, rreq_link);

fs/proc/inode.c

···
 
 	head = ei->sysctl;
 	if (head) {
-		RCU_INIT_POINTER(ei->sysctl, NULL);
+		WRITE_ONCE(ei->sysctl, NULL);
 		proc_sys_evict_inode(inode, head);
 	}
 }

fs/proc/proc_sysctl.c

···
 	struct ctl_table_header *head;
 	struct inode *inode;
 
-	/* Although proc doesn't have negative dentries, rcu-walk means
-	 * that inode here can be NULL */
-	/* AV: can it, indeed? */
-	inode = d_inode_rcu(dentry);
-	if (!inode)
-		return 1;
 	if (name->len != len)
 		return 1;
 	if (memcmp(name->name, str, len))
 		return 1;
-	head = rcu_dereference(PROC_I(inode)->sysctl);
+
+	// false positive is fine here - we'll recheck anyway
+	if (d_in_lookup(dentry))
+		return 0;
+
+	inode = d_inode_rcu(dentry);
+	// we just might have run into dentry in the middle of __dentry_kill()
+	if (!inode)
+		return 1;
+
+	head = READ_ONCE(PROC_I(inode)->sysctl);
 	return !head || !sysctl_is_seen(head);
 }
 

fs/smb/client/cifsglob.h

···
 	__le32 session_key_id; /* retrieved from negotiate response and send in session setup request */
 	struct session_key session_key;
 	unsigned long lstrp; /* when we got last response from this server */
+	unsigned long neg_start; /* when negotiate started (jiffies) */
 	struct cifs_secmech secmech; /* crypto sec mech functs, descriptors */
 #define	CIFS_NEGFLAVOR_UNENCAP	1	/* wct == 17, but no ext_sec */
 #define	CIFS_NEGFLAVOR_EXTENDED	2	/* wct == 17, ext_sec bit set */
···
 	bool use_persistent:1; /* use persistent instead of durable handles */
 	bool no_lease:1;    /* Do not request leases on files or directories */
 	bool use_witness:1; /* use witness protocol */
+	bool dummy:1; /* dummy tcon used for reconnecting channels */
 	__le32 capabilities;
 	__u32 share_flags;
 	__u32 maximal_access;

fs/smb/client/cifsproto.h

···
 			struct smb_hdr *out_buf,
 			int *bytes_returned);
 
+void smb2_query_server_interfaces(struct work_struct *work);
 void
 cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server,
 				      bool all_channels);

fs/smb/client/cifssmb.c

···
 		cifs_stats_bytes_read(tcon, rdata->got_bytes);
 		break;
 	case MID_REQUEST_SUBMITTED:
+		trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_req_submitted);
+		goto do_retry;
 	case MID_RETRY_NEEDED:
+		trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_retry_needed);
+do_retry:
+		__set_bit(NETFS_SREQ_NEED_RETRY, &rdata->subreq.flags);
 		rdata->result = -EAGAIN;
 		if (server->sign && rdata->got_bytes)
 			/* reset bytes number since we can not check a sign */
···
 		task_io_account_read(rdata->got_bytes);
 		cifs_stats_bytes_read(tcon, rdata->got_bytes);
 		break;
-	default:
+	case MID_RESPONSE_MALFORMED:
+		trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_malformed);
 		rdata->result = -EIO;
+		break;
+	default:
+		trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_unknown);
+		rdata->result = -EIO;
+		break;
 	}
 
 	if (rdata->result == -ENODATA) {
···
 		}
 		break;
 	case MID_REQUEST_SUBMITTED:
-	case MID_RETRY_NEEDED:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_req_submitted);
+		__set_bit(NETFS_SREQ_NEED_RETRY, &wdata->subreq.flags);
 		result = -EAGAIN;
 		break;
+	case MID_RETRY_NEEDED:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_retry_needed);
+		__set_bit(NETFS_SREQ_NEED_RETRY, &wdata->subreq.flags);
+		result = -EAGAIN;
+		break;
+	case MID_RESPONSE_MALFORMED:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_malformed);
+		result = -EIO;
+		break;
 	default:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_unknown);
 		result = -EIO;
 		break;
 	}

fs/smb/client/connect.c

···
 	return rc;
 }
 
-static void smb2_query_server_interfaces(struct work_struct *work)
+void smb2_query_server_interfaces(struct work_struct *work)
 {
 	int rc;
 	int xid;
···
 	/*
 	 * If we're in the process of mounting a share or reconnecting a session
 	 * and the server abruptly shut down (e.g. socket wasn't closed, packet
-	 * had been ACK'ed but no SMB response), don't wait longer than 20s to
-	 * negotiate protocol.
+	 * had been ACK'ed but no SMB response), don't wait longer than 20s from
+	 * when negotiate actually started.
 	 */
 	spin_lock(&server->srv_lock);
 	if (server->tcpStatus == CifsInNegotiate &&
-	    time_after(jiffies, server->lstrp + 20 * HZ)) {
+	    time_after(jiffies, server->neg_start + 20 * HZ)) {
 		spin_unlock(&server->srv_lock);
 		cifs_reconnect(server, false);
 		return true;
···
 	tcon->max_cached_dirs = ctx->max_cached_dirs;
 	tcon->nodelete = ctx->nodelete;
 	tcon->local_lease = ctx->local_lease;
-	INIT_LIST_HEAD(&tcon->pending_opens);
 	tcon->status = TID_GOOD;
 
-	INIT_DELAYED_WORK(&tcon->query_interfaces,
-			  smb2_query_server_interfaces);
 	if (ses->server->dialect >= SMB30_PROT_ID &&
 	    (ses->server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL)) {
 		/* schedule query interfaces poll */
 		queue_delayed_work(cifsiod_wq, &tcon->query_interfaces,
 				   (SMB_INTERFACE_POLL_INTERVAL * HZ));
 	}
-#ifdef CONFIG_CIFS_DFS_UPCALL
-	INIT_DELAYED_WORK(&tcon->dfs_cache_work, dfs_cache_refresh);
-#endif
 	spin_lock(&cifs_tcp_ses_lock);
 	list_add(&tcon->tcon_list, &ses->tcon_list);
 	spin_unlock(&cifs_tcp_ses_lock);
···
 
 	server->lstrp = jiffies;
 	server->tcpStatus = CifsInNegotiate;
+	server->neg_start = jiffies;
 	spin_unlock(&server->srv_lock);
 
 	rc = server->ops->negotiate(xid, ses, server);

fs/smb/client/fs_context.c

···
 			cifs_errorf(fc, "symlinkroot mount options must be absolute path\n");
 			goto cifs_parse_mount_err;
 		}
-		kfree(ctx->symlinkroot);
-		ctx->symlinkroot = kstrdup(param->string, GFP_KERNEL);
-		if (!ctx->symlinkroot)
+		if (strnlen(param->string, PATH_MAX) == PATH_MAX) {
+			cifs_errorf(fc, "symlinkroot path too long (max path length: %u)\n",
+				    PATH_MAX - 1);
 			goto cifs_parse_mount_err;
+		}
+		kfree(ctx->symlinkroot);
+		ctx->symlinkroot = param->string;
+		param->string = NULL;
 		break;
 	}
 	/* case Opt_ignore: - is ignored as expected ... */
···
 		cifs_errorf(fc, "multiuser mount option not supported with upcalltarget set as 'mount'\n");
 		goto cifs_parse_mount_err;
 	}
-
-	/*
-	 * By default resolve all native absolute symlinks relative to "/mnt/".
-	 * Same default has drvfs driver running in WSL for resolving SMB shares.
-	 */
-	if (!ctx->symlinkroot)
-		ctx->symlinkroot = kstrdup("/mnt/", GFP_KERNEL);
 
 	return 0;
 

fs/smb/client/misc.c

···
 #ifdef CONFIG_CIFS_DFS_UPCALL
 	INIT_LIST_HEAD(&ret_buf->dfs_ses_list);
 #endif
+	INIT_LIST_HEAD(&ret_buf->pending_opens);
+	INIT_DELAYED_WORK(&ret_buf->query_interfaces,
+			  smb2_query_server_interfaces);
+#ifdef CONFIG_CIFS_DFS_UPCALL
+	INIT_DELAYED_WORK(&ret_buf->dfs_cache_work, dfs_cache_refresh);
+#endif
 
 	return ret_buf;
 }

fs/smb/client/readdir.c

···
 	/* The Mode field in the response can now include the file type as well */
 	fattr->cf_mode = wire_mode_to_posix(le32_to_cpu(info->Mode),
 					    fattr->cf_cifsattrs & ATTR_DIRECTORY);
-	fattr->cf_dtype = S_DT(le32_to_cpu(info->Mode));
+	fattr->cf_dtype = S_DT(fattr->cf_mode);
 
 	switch (fattr->cf_mode & S_IFMT) {
 	case S_IFLNK:

fs/smb/client/reparse.c

···
 	struct reparse_symlink_data_buffer *buf = NULL;
 	struct cifs_open_info_data data = {};
 	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+	const char *symroot = cifs_sb->ctx->symlinkroot;
 	struct inode *new;
 	struct kvec iov;
 	__le16 *path = NULL;
···
 		.symlink_target = symlink_target,
 	};
 
-	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) && symname[0] == '/') {
+	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) &&
+	    symroot && symname[0] == '/') {
 		/*
 		 * This is a request to create an absolute symlink on the server
 		 * which does not support POSIX paths, and expects symlink in
···
 		 * ensure compatibility of this symlink stored in absolute form
 		 * on the SMB server.
 		 */
-		if (!strstarts(symname, cifs_sb->ctx->symlinkroot)) {
+		if (!strstarts(symname, symroot)) {
 			/*
 			 * If the absolute Linux symlink target path is not
 			 * inside "symlinkroot" location then there is no way
···
 			cifs_dbg(VFS,
 				 "absolute symlink '%s' cannot be converted to NT format "
 				 "because it is outside of symlinkroot='%s'\n",
-				 symname, cifs_sb->ctx->symlinkroot);
+				 symname, symroot);
 			rc = -EINVAL;
 			goto out;
 		}
-		len = strlen(cifs_sb->ctx->symlinkroot);
-		if (cifs_sb->ctx->symlinkroot[len-1] != '/')
+		len = strlen(symroot);
+		if (symroot[len - 1] != '/')
 			len++;
 		if (symname[len] >= 'a' && symname[len] <= 'z' &&
 		    (symname[len+1] == '/' || symname[len+1] == '\0')) {
···
 			      const char *full_path,
 			      struct cifs_sb_info *cifs_sb)
 {
+	const char *symroot = cifs_sb->ctx->symlinkroot;
 	char sep = CIFS_DIR_SEP(cifs_sb);
 	char *linux_target = NULL;
 	char *smb_target = NULL;
···
 		goto out;
 	}
 
-	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) && !relative) {
+	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) &&
+	    symroot && !relative) {
 		/*
 		 * This is an absolute symlink from the server which does not
 		 * support POSIX paths, so the symlink is in NT-style path.
···
 		}
 
 		abs_path_len = strlen(abs_path)+1;
-		symlinkroot_len = strlen(cifs_sb->ctx->symlinkroot);
-		if (cifs_sb->ctx->symlinkroot[symlinkroot_len-1] == '/')
+		symlinkroot_len = strlen(symroot);
+		if (symroot[symlinkroot_len - 1] == '/')
 			symlinkroot_len--;
 		linux_target = kmalloc(symlinkroot_len + 1 + abs_path_len, GFP_KERNEL);
 		if (!linux_target) {
 			rc = -ENOMEM;
 			goto out;
 		}
-		memcpy(linux_target, cifs_sb->ctx->symlinkroot, symlinkroot_len);
+		memcpy(linux_target, symroot, symlinkroot_len);
 		linux_target[symlinkroot_len] = '/';
 		memcpy(linux_target + symlinkroot_len + 1, abs_path, abs_path_len);
 	} else if (smb_target[0] == sep && relative) {

fs/smb/client/smb2pdu.c

···
 		free_xid(xid);
 		ses->flags &= ~CIFS_SES_FLAGS_PENDING_QUERY_INTERFACES;
 
-		/* regardless of rc value, setup polling */
-		queue_delayed_work(cifsiod_wq, &tcon->query_interfaces,
-				   (SMB_INTERFACE_POLL_INTERVAL * HZ));
+		if (!tcon->ipc && !tcon->dummy)
+			queue_delayed_work(cifsiod_wq, &tcon->query_interfaces,
+					   (SMB_INTERFACE_POLL_INTERVAL * HZ));
 
 		mutex_unlock(&ses->session_mutex);
 
···
 		}
 		goto done;
 	}
-
 	tcon->status = TID_GOOD;
-	tcon->retry = false;
-	tcon->need_reconnect = false;
+	tcon->dummy = true;
 
 	/* now reconnect sessions for necessary channels */
 	list_for_each_entry_safe(ses, ses2, &tmp_ses_list, rlist) {
···
 		cifs_stats_bytes_read(tcon, rdata->got_bytes);
 		break;
 	case MID_REQUEST_SUBMITTED:
+		trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_req_submitted);
+		goto do_retry;
 	case MID_RETRY_NEEDED:
+		trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_retry_needed);
+do_retry:
 		__set_bit(NETFS_SREQ_NEED_RETRY, &rdata->subreq.flags);
 		rdata->result = -EAGAIN;
 		if (server->sign && rdata->got_bytes)
···
 		cifs_stats_bytes_read(tcon, rdata->got_bytes);
 		break;
 	case MID_RESPONSE_MALFORMED:
+		trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_malformed);
 		credits.value = le16_to_cpu(shdr->CreditRequest);
 		credits.instance = server->reconnect_instance;
-		fallthrough;
-	default:
 		rdata->result = -EIO;
+		break;
+	default:
+		trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_unknown);
+		rdata->result = -EIO;
+		break;
 	}
 #ifdef CONFIG_CIFS_SMB_DIRECT
 	/*
···
 
 	switch (mid->mid_state) {
 	case MID_RESPONSE_RECEIVED:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_progress);
 		credits.value = le16_to_cpu(rsp->hdr.CreditRequest);
 		credits.instance = server->reconnect_instance;
 		result = smb2_check_receive(mid, server, 0);
-		if (result != 0)
+		if (result != 0) {
+			trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_bad);
 			break;
+		}
 
 		written = le32_to_cpu(rsp->DataLength);
 		/*
···
 		}
 		break;
 	case MID_REQUEST_SUBMITTED:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_req_submitted);
+		__set_bit(NETFS_SREQ_NEED_RETRY, &wdata->subreq.flags);
+		result = -EAGAIN;
+		break;
 	case MID_RETRY_NEEDED:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_retry_needed);
+		__set_bit(NETFS_SREQ_NEED_RETRY, &wdata->subreq.flags);
 		result = -EAGAIN;
 		break;
 	case MID_RESPONSE_MALFORMED:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_malformed);
 		credits.value = le16_to_cpu(rsp->hdr.CreditRequest);
 		credits.instance = server->reconnect_instance;
-		fallthrough;
+		result = -EIO;
+		break;
 	default:
+		trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_unknown);
 		result = -EIO;
 		break;
 	}
···
 			      server->credits, server->in_flight,
 			      0, cifs_trace_rw_credits_write_response_clear);
 	wdata->credits.value = 0;
-	trace_netfs_sreq(&wdata->subreq, netfs_sreq_trace_io_progress);
 	cifs_write_subrequest_terminated(wdata, result ?: written);
 	release_mid(mid);
 	trace_smb3_rw_credits(rreq_debug_id, subreq_debug_index, 0,

include/drm/drm_mipi_dsi.h

···
 
 #define to_mipi_dsi_device(__dev)	container_of_const(__dev, struct mipi_dsi_device, dev)
 
+extern const struct bus_type mipi_dsi_bus_type;
+#define dev_is_mipi_dsi(dev)	((dev)->bus == &mipi_dsi_bus_type)
+
 /**
  * mipi_dsi_pixel_format_to_bpp - obtain the number of bits per pixel for any
  *                                given pixel format defined by the MIPI DSI

include/drm/spsc_queue.h

···
 
 	preempt_disable();
 
+	atomic_inc(&queue->job_count);
+	smp_mb__after_atomic();
+
 	tail = (struct spsc_node **)atomic_long_xchg(&queue->tail, (long)&node->next);
 	WRITE_ONCE(*tail, node);
-	atomic_inc(&queue->job_count);
 
 	/*
 	 * In case of first element verify new node will be visible to the consumer

include/linux/arm_ffa.h

···
 	u32 offset;
 	u32 send_recv_id;
 	u32 size;
+	u32 res1;
 	uuid_t uuid;
 };
 

include/linux/cpu.h

···
 				      struct device_attribute *attr, char *buf);
 extern ssize_t cpu_show_indirect_target_selection(struct device *dev,
 						  struct device_attribute *attr, char *buf);
+extern ssize_t cpu_show_tsa(struct device *dev, struct device_attribute *attr, char *buf);
 
 extern __printf(4, 5)
 struct device *cpu_device_create(struct device *parent, void *drvdata,

include/linux/fs.h

···
 extern const struct address_space_operations ram_aops;
 extern int always_delete_dentry(const struct dentry *);
 extern struct inode *alloc_anon_inode(struct super_block *);
+struct inode *anon_inode_make_secure_inode(struct super_block *sb, const char *name,
+					   const struct inode *context_inode);
 extern int simple_nosetlease(struct file *, int, struct file_lease **, void **);
 extern const struct dentry_operations simple_dentry_operations;
 

include/linux/mtd/nand-qpic-common.h

···
  * @last_data_desc - last DMA desc in data channel (tx/rx).
  * @last_cmd_desc - last DMA desc in command channel.
  * @txn_done - completion for NAND transfer.
+ * @bam_ce_nitems - the number of elements in the @bam_ce array
+ * @cmd_sgl_nitems - the number of elements in the @cmd_sgl array
+ * @data_sgl_nitems - the number of elements in the @data_sgl array
  * @bam_ce_pos - the index in bam_ce which is available for next sgl
  * @bam_ce_start - the index in bam_ce which marks the start position ce
  *		   for current sgl. It will be used for size calculation
···
 	struct dma_async_tx_descriptor *last_data_desc;
 	struct dma_async_tx_descriptor *last_cmd_desc;
 	struct completion txn_done;
+
+	unsigned int bam_ce_nitems;
+	unsigned int cmd_sgl_nitems;
+	unsigned int data_sgl_nitems;
+
 	struct_group(bam_positions,
 		u32 bam_ce_pos;
 		u32 bam_ce_start;

include/linux/netfs.h

···
 	bool			direct_bv_unpin; /* T if direct_bv[] must be unpinned */
 	refcount_t		ref;
 	unsigned long		flags;
-#define NETFS_RREQ_OFFLOAD_COLLECTION	0	/* Offload collection to workqueue */
-#define NETFS_RREQ_NO_UNLOCK_FOLIO	2	/* Don't unlock no_unlock_folio on completion */
-#define NETFS_RREQ_FAILED		4	/* The request failed */
-#define NETFS_RREQ_IN_PROGRESS		5	/* Unlocked when the request completes (has ref) */
-#define NETFS_RREQ_FOLIO_COPY_TO_CACHE	6	/* Copy current folio to cache from read */
-#define NETFS_RREQ_UPLOAD_TO_SERVER	8	/* Need to write to the server */
-#define NETFS_RREQ_PAUSE		11	/* Pause subrequest generation */
+#define NETFS_RREQ_IN_PROGRESS		0	/* Unlocked when the request completes (has ref) */
+#define NETFS_RREQ_ALL_QUEUED		1	/* All subreqs are now queued */
+#define NETFS_RREQ_PAUSE		2	/* Pause subrequest generation */
+#define NETFS_RREQ_FAILED		3	/* The request failed */
+#define NETFS_RREQ_RETRYING		4	/* Set if we're in the retry path */
+#define NETFS_RREQ_SHORT_TRANSFER	5	/* Set if we have a short transfer */
+#define NETFS_RREQ_OFFLOAD_COLLECTION	8	/* Offload collection to workqueue */
+#define NETFS_RREQ_NO_UNLOCK_FOLIO	9	/* Don't unlock no_unlock_folio on completion */
+#define NETFS_RREQ_FOLIO_COPY_TO_CACHE	10	/* Copy current folio to cache from read */
+#define NETFS_RREQ_UPLOAD_TO_SERVER	11	/* Need to write to the server */
 #define NETFS_RREQ_USE_IO_ITER		12	/* Use ->io_iter rather than ->i_pages */
-#define NETFS_RREQ_ALL_QUEUED		13	/* All subreqs are now queued */
-#define NETFS_RREQ_RETRYING		14	/* Set if we're in the retry path */
-#define NETFS_RREQ_SHORT_TRANSFER	15	/* Set if we have a short transfer */
 #define NETFS_RREQ_USE_PGPRIV2		31	/* [DEPRECATED] Use PG_private_2 to mark
 						 * write to cache on read */
 	const struct netfs_request_ops *netfs_ops;
-	void (*cleanup)(struct netfs_io_request *req);
 };
 
 /*

include/linux/psp-sev.h

···
  * @imi_en: launch flow is launching an IMI (Incoming Migration Image) for the
  *          purpose of guest-assisted migration.
  * @rsvd: reserved
+ * @desired_tsc_khz: hypervisor desired mean TSC freq in kHz of the guest
  * @gosvw: guest OS-visible workarounds, as defined by hypervisor
  */
 struct sev_data_snp_launch_start {
···
 	u32 ma_en:1;				/* In */
 	u32 imi_en:1;				/* In */
 	u32 rsvd:30;
+	u32 desired_tsc_khz;			/* In */
 	u8 gosvw[16];				/* In */
 } __packed;
 

include/linux/spi/spi.h

···
 #include <uapi/linux/spi/spi.h>
 
 /* Max no. of CS supported per spi device */
-#define SPI_CS_CNT_MAX 16
+#define SPI_CS_CNT_MAX 24
 
 struct dma_chan;
 struct software_node;

include/linux/suspend.h

···
 extern void ksys_sync_helper(void);
 extern void pm_report_hw_sleep_time(u64 t);
 extern void pm_report_max_hw_sleep(u64 t);
+void pm_restrict_gfp_mask(void);
+void pm_restore_gfp_mask(void);
 
 #define pm_notifier(fn, pri) {				\
 	static struct notifier_block fn##_nb =			\
···
 
 static inline void pm_report_hw_sleep_time(u64 t) {};
 static inline void pm_report_max_hw_sleep(u64 t) {};
+
+static inline void pm_restrict_gfp_mask(void) {}
+static inline void pm_restore_gfp_mask(void) {}
 
 static inline void ksys_sync_helper(void) {}
 

include/linux/usb.h

···
  *	FIXME -- complete doc
  * @authenticated: Crypto authentication passed
  * @tunnel_mode: Connection native or tunneled over USB4
+ * @usb4_link: device link to the USB4 host interface
  * @lpm_capable: device supports LPM
  * @lpm_devinit_allow: Allow USB3 device initiated LPM, exit latency is in range
  * @usb2_hw_lpm_capable: device can perform USB2 hardware LPM
···
 	unsigned reset_resume:1;
 	unsigned port_is_suspended:1;
 	enum usb_link_tunnel_mode tunnel_mode;
+	struct device_link *usb4_link;
 
 	int slot_id;
 	struct usb2_lpm_parameters l1_params;

include/linux/usb/typec_dp.h

···
 	DP_PIN_ASSIGN_D,
 	DP_PIN_ASSIGN_E,
 	DP_PIN_ASSIGN_F, /* Not supported after v1.0b */
+	DP_PIN_ASSIGN_MAX,
 };
 
 /* DisplayPort alt mode specific commands */

include/net/af_vsock.h

···
 int vsock_dgram_recvmsg(struct socket *sock, struct msghdr *msg,
 			size_t len, int flags);
 
-#ifdef CONFIG_BPF_SYSCALL
 extern struct proto vsock_proto;
+#ifdef CONFIG_BPF_SYSCALL
 int vsock_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore);
 void __init vsock_bpf_build_proto(void);
 #else

include/net/bluetooth/hci_core.h

···
 	rcu_read_lock();
 
 	list_for_each_entry_rcu(c, &h->list, list) {
-		if (c->type != BIS_LINK || bacmp(&c->dst, BDADDR_ANY) ||
-		    c->state != state)
+		if (c->type != BIS_LINK || c->state != state)
 			continue;
 
 		if (handle == c->iso_qos.bcast.big) {

include/net/pkt_sched.h

···
 					struct netlink_ext_ack *extack);
 void qdisc_put_rtab(struct qdisc_rate_table *tab);
 void qdisc_put_stab(struct qdisc_size_table *tab);
-void qdisc_warn_nonwc(const char *txt, struct Qdisc *qdisc);
 bool sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
 		     struct net_device *dev, struct netdev_queue *txq,
 		     spinlock_t *root_lock, bool validate);
···
 
 	arg->count++;
 	return true;
+}
+
+static inline void qdisc_warn_nonwc(const char *txt, struct Qdisc *qdisc)
+{
+	if (!(qdisc->flags & TCQ_F_WARN_NONWC)) {
+		pr_warn("%s: %s qdisc %X: is non-work-conserving?\n",
+			txt, qdisc->ops->id, qdisc->handle >> 16);
+		qdisc->flags |= TCQ_F_WARN_NONWC;
+	}
+}
+
+static inline unsigned int qdisc_peek_len(struct Qdisc *sch)
+{
+	struct sk_buff *skb;
+	unsigned int len;
+
+	skb = sch->ops->peek(sch);
+	if (unlikely(skb == NULL)) {
+		qdisc_warn_nonwc("qdisc_peek_len", sch);
+		return 0;
+	}
+	len = qdisc_pkt_len(skb);
+
+	return len;
 }
 
 #endif

include/trace/events/netfs.h

···
 
 #define netfs_rreq_traces					\
 	EM(netfs_rreq_trace_assess,		"ASSESS ")	\
-	EM(netfs_rreq_trace_copy,		"COPY   ")	\
 	EM(netfs_rreq_trace_collect,		"COLLECT")	\
 	EM(netfs_rreq_trace_complete,		"COMPLET")	\
+	EM(netfs_rreq_trace_copy,		"COPY   ")	\
 	EM(netfs_rreq_trace_dirty,		"DIRTY  ")	\
 	EM(netfs_rreq_trace_done,		"DONE   ")	\
 	EM(netfs_rreq_trace_free,		"FREE   ")	\
+	EM(netfs_rreq_trace_ki_complete,	"KI-CMPL")	\
+	EM(netfs_rreq_trace_recollect,		"RECLLCT")	\
 	EM(netfs_rreq_trace_redirty,		"REDIRTY")	\
 	EM(netfs_rreq_trace_resubmit,		"RESUBMT")	\
 	EM(netfs_rreq_trace_set_abandon,	"S-ABNDN")	\
···
 	EM(netfs_rreq_trace_unlock,		"UNLOCK ")	\
 	EM(netfs_rreq_trace_unlock_pgpriv2,	"UNLCK-2")	\
 	EM(netfs_rreq_trace_unmark,		"UNMARK ")	\
+	EM(netfs_rreq_trace_unpause,		"UNPAUSE")	\
 	EM(netfs_rreq_trace_wait_ip,		"WAIT-IP")	\
-	EM(netfs_rreq_trace_wait_pause,		"WT-PAUS")	\
-	EM(netfs_rreq_trace_wait_queue,		"WAIT-Q ")	\
+	EM(netfs_rreq_trace_wait_pause,		"--PAUSED--")	\
+	EM(netfs_rreq_trace_wait_quiesce,	"WAIT-QUIESCE")	\
+	EM(netfs_rreq_trace_waited_ip,		"DONE-IP")	\
+	EM(netfs_rreq_trace_waited_pause,	"--UNPAUSED--")	\
+	EM(netfs_rreq_trace_waited_quiesce,	"DONE-QUIESCE")	\
 	EM(netfs_rreq_trace_wake_ip,		"WAKE-IP")	\
 	EM(netfs_rreq_trace_wake_queue,		"WAKE-Q ")	\
-	EM(netfs_rreq_trace_woke_queue,		"WOKE-Q ")	\
-	EM(netfs_rreq_trace_unpause,		"UNPAUSE")	\
 	E_(netfs_rreq_trace_write_done,		"WR-DONE")
 
 #define netfs_sreq_sources					\
···
 	E_(NETFS_WRITE_TO_CACHE,		"WRIT")
 
 #define netfs_sreq_traces					\
+	EM(netfs_sreq_trace_abandoned,		"ABNDN")	\
 	EM(netfs_sreq_trace_add_donations,	"+DON ")	\
 	EM(netfs_sreq_trace_added,		"ADD  ")	\
 	EM(netfs_sreq_trace_cache_nowrite,	"CA-NW")	\
···
 	EM(netfs_sreq_trace_cache_write,	"CA-WR")	\
 	EM(netfs_sreq_trace_cancel,		"CANCL")	\
 	EM(netfs_sreq_trace_clear,		"CLEAR")	\
+	EM(netfs_sreq_trace_consumed,		"CONSM")	\
 	EM(netfs_sreq_trace_discard,		"DSCRD")	\
 	EM(netfs_sreq_trace_donate_to_prev,	"DON-P")	\
 	EM(netfs_sreq_trace_donate_to_next,	"DON-N")	\
···
 	EM(netfs_sreq_trace_fail,		"FAIL ")	\
 	EM(netfs_sreq_trace_free,		"FREE ")	\
 	EM(netfs_sreq_trace_hit_eof,		"EOF  ")	\
-	EM(netfs_sreq_trace_io_progress,	"IO   ")	\
+	EM(netfs_sreq_trace_io_bad,		"I-BAD")	\
+	EM(netfs_sreq_trace_io_malformed,	"I-MLF")	\
+	EM(netfs_sreq_trace_io_unknown,		"I-UNK")	\
+	EM(netfs_sreq_trace_io_progress,	"I-OK ")	\
+	EM(netfs_sreq_trace_io_req_submitted,	"I-RSB")	\
+	EM(netfs_sreq_trace_io_retry_needed,	"I-RTR")	\
 	EM(netfs_sreq_trace_limited,		"LIMIT")	\
 	EM(netfs_sreq_trace_need_clear,		"N-CLR")	\
 	EM(netfs_sreq_trace_partial_read,	"PARTR")	\
···
 
 #define netfs_sreq_ref_traces					\
 	EM(netfs_sreq_trace_get_copy_to_cache,	"GET COPY2C ")	\
-	EM(netfs_sreq_trace_get_resubmit,	"GET RESUBMIT")	\
-	EM(netfs_sreq_trace_get_submit,		"GET SUBMIT")	\
+	EM(netfs_sreq_trace_get_resubmit,	"GET RESUBMT")	\
+	EM(netfs_sreq_trace_get_submit,		"GET SUBMIT ")	\
 	EM(netfs_sreq_trace_get_short_read,	"GET SHORTRD")	\
 	EM(netfs_sreq_trace_new,		"NEW        ")	\
 	EM(netfs_sreq_trace_put_abandon,	"PUT ABANDON")	\
···
 		    __entry->slot	= sreq->io_iter.folioq_slot;
 			   ),
 
-	    TP_printk("R=%08x[%x] %s %s f=%02x s=%llx %zx/%zx s=%u e=%d",
+	    TP_printk("R=%08x[%x] %s %s f=%03x s=%llx %zx/%zx s=%u e=%d",
 		      __entry->rreq, __entry->index,
 		      __print_symbolic(__entry->source, netfs_sreq_sources),
 		      __print_symbolic(__entry->what, netfs_sreq_traces),

include/uapi/linux/bits.h

···
 #ifndef _UAPI_LINUX_BITS_H
 #define _UAPI_LINUX_BITS_H
 
-#define __GENMASK(h, l) (((~_UL(0)) << (l)) & (~_UL(0) >> (BITS_PER_LONG - 1 - (h))))
+#define __GENMASK(h, l) (((~_UL(0)) << (l)) & (~_UL(0) >> (__BITS_PER_LONG - 1 - (h))))
 
-#define __GENMASK_ULL(h, l) (((~_ULL(0)) << (l)) & (~_ULL(0) >> (BITS_PER_LONG_LONG - 1 - (h))))
+#define __GENMASK_ULL(h, l) (((~_ULL(0)) << (l)) & (~_ULL(0) >> (__BITS_PER_LONG_LONG - 1 - (h))))
 
 #define __GENMASK_U128(h, l) \
 	((_BIT128((h)) << 1) - (_BIT128(l)))

include/uapi/linux/kvm.h

···
 					__u64 leaf;
 					__u64 r11, r12, r13, r14;
 				} get_tdvmcall_info;
+				struct {
+					__u64 ret;
+					__u64 vector;
+				} setup_event_notify;
 			};
 		} tdx;
 		/* Fix the size of the union. */

init/Kconfig

···
 	depends on FUTEX && RT_MUTEXES
 	default y
 
+#
+# marked broken for performance reasons; gives us one more cycle to sort things out.
+#
 config FUTEX_PRIVATE_HASH
 	bool
 	depends on FUTEX && !BASE_SMALL && MMU
+	depends on BROKEN
 	default y
 
 config FUTEX_MPOL

kernel/events/core.c

···
 	if (READ_ONCE(cpuctx->cgrp) == NULL)
 		return;
 
-	WARN_ON_ONCE(cpuctx->ctx.nr_cgroups == 0);
-
 	cgrp = perf_cgroup_from_task(task, NULL);
 	if (READ_ONCE(cpuctx->cgrp) == cgrp)
 		return;
···
 	 */
 	if (READ_ONCE(cpuctx->cgrp) == NULL)
 		return;
+
+	WARN_ON_ONCE(cpuctx->ctx.nr_cgroups == 0);
 
 	perf_ctx_disable(&cpuctx->ctx, true);
 
···
 	if (event->attr.type != perf_uprobe.type)
 		return -ENOENT;
 
-	if (!perfmon_capable())
+	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
 	/*

kernel/kexec_core.c

···
  Resume_devices:
 		dpm_resume_end(PMSG_RESTORE);
  Resume_console:
+		pm_restore_gfp_mask();
 		console_resume_all();
 		thaw_processes();
  Restore_console:

kernel/module/main.c

···
 		if (infosec >= info->hdr->e_shnum)
 			continue;
 
-		/* Don't bother with non-allocated sections */
-		if (!(info->sechdrs[infosec].sh_flags & SHF_ALLOC))
+		/*
+		 * Don't bother with non-allocated sections.
+		 * An exception is the percpu section, which has separate allocations
+		 * for individual CPUs. We relocate the percpu section in the initial
+		 * ELF template and subsequently copy it to the per-CPU destinations.
+		 */
+		if (!(info->sechdrs[infosec].sh_flags & SHF_ALLOC) &&
+		    (!infosec || infosec != info->index.pcpu))
 			continue;
 
 		if (info->sechdrs[i].sh_flags & SHF_RELA_LIVEPATCH)
···
 
 static int move_module(struct module *mod, struct load_info *info)
 {
-	int i;
-	enum mod_mem_type t = 0;
-	int ret = -ENOMEM;
+	int i, ret;
+	enum mod_mem_type t = MOD_MEM_NUM_TYPES;
 	bool codetag_section_found = false;
 
 	for_each_mod_mem_type(type) {
···
 	return 0;
 out_err:
 	module_memory_restore_rox(mod);
-	for (t--; t >= 0; t--)
+	while (t--)
 		module_memory_free(mod, t);
 	if (codetag_section_found)
 		codetag_free_module_sections(mod);

kernel/power/hibernate.c

···
 	}
 
 	console_suspend_all();
-	pm_restrict_gfp_mask();
 
 	error = dpm_suspend(PMSG_FREEZE);
 
···
 
 	pm_prepare_console();
 	console_suspend_all();
-	pm_restrict_gfp_mask();
 	error = dpm_suspend_start(PMSG_QUIESCE);
 	if (!error) {
 		error = resume_target_kernel(platform_mode);
···
 		BUG_ON(!error);
 	}
 	dpm_resume_end(PMSG_RECOVER);
-	pm_restore_gfp_mask();
 	console_resume_all();
 	pm_restore_console();
 	return error;

kernel/power/power.h

···
 /* kernel/power/main.c */
 extern int pm_notifier_call_chain_robust(unsigned long val_up, unsigned long val_down);
 extern int pm_notifier_call_chain(unsigned long val);
-void pm_restrict_gfp_mask(void);
-void pm_restore_gfp_mask(void);
-#else
-static inline void pm_restrict_gfp_mask(void) {}
-static inline void pm_restore_gfp_mask(void) {}
 #endif
 
 #ifdef CONFIG_HIGHMEM

kernel/power/suspend.c

···
 	return error;
 
  Recover_platform:
+	pm_restore_gfp_mask();
 	platform_recover(state);
 	goto Resume_devices;
 }
···
 
 	trace_suspend_resume(TPS("suspend_enter"), state, false);
 	pm_pr_dbg("Suspending system (%s)\n", mem_sleep_labels[state]);
-	pm_restrict_gfp_mask();
 	error = suspend_devices_and_enter(state);
-	pm_restore_gfp_mask();
 
  Finish:
 	events_check_enabled = false;

kernel/sched/core.c

···
 	if (!scx_allow_ttwu_queue(p))
 		return false;
 
+#ifdef CONFIG_SMP
+	if (p->sched_class == &stop_sched_class)
+		return false;
+#endif
+
 	/*
 	 * Do not complicate things with the async wake_list while the CPU is
 	 * in hotplug state.
···
 
 		if (IS_ENABLED(CONFIG_PREEMPT_DYNAMIC)) {
 			seq_buf_printf(&s, "(%s)%s",
-				       preempt_dynamic_mode > 0 ?
+				       preempt_dynamic_mode >= 0 ?
 				       preempt_modes[preempt_dynamic_mode] : "undef",
 				       brace ? "}" : "");
 			return seq_buf_str(&s);

kernel/sched/deadline.c

···
 	if (dl_entity_is_special(dl_se))
 		return;
 
-	scaled_delta_exec = dl_scaled_delta_exec(rq, dl_se, delta_exec);
+	scaled_delta_exec = delta_exec;
+	if (!dl_server(dl_se))
+		scaled_delta_exec = dl_scaled_delta_exec(rq, dl_se, delta_exec);
 
 	dl_se->runtime -= scaled_delta_exec;
 
···
  */
 void dl_server_update_idle_time(struct rq *rq, struct task_struct *p)
 {
-	s64 delta_exec, scaled_delta_exec;
+	s64 delta_exec;
 
 	if (!rq->fair_server.dl_defer)
 		return;
···
 	if (delta_exec < 0)
 		return;
 
-	scaled_delta_exec = dl_scaled_delta_exec(rq, &rq->fair_server, delta_exec);
-
-	rq->fair_server.runtime -= scaled_delta_exec;
+	rq->fair_server.runtime -= delta_exec;
 
 	if (rq->fair_server.runtime < 0) {
 		rq->fair_server.dl_defer_running = 0;

kernel/stop_machine.c

···
 }
 
 static void __cpu_stop_queue_work(struct cpu_stopper *stopper,
-					struct cpu_stop_work *work,
-					struct wake_q_head *wakeq)
+				  struct cpu_stop_work *work)
 {
 	list_add_tail(&work->list, &stopper->works);
-	wake_q_add(wakeq, stopper->thread);
 }
 
 /* queue @work to @stopper.  if offline, @work is completed immediately */
 static bool cpu_stop_queue_work(unsigned int cpu, struct cpu_stop_work *work)
 {
 	struct cpu_stopper *stopper = &per_cpu(cpu_stopper, cpu);
-	DEFINE_WAKE_Q(wakeq);
 	unsigned long flags;
 	bool enabled;
 
···
 	raw_spin_lock_irqsave(&stopper->lock, flags);
 	enabled = stopper->enabled;
 	if (enabled)
-		__cpu_stop_queue_work(stopper, work, &wakeq);
+		__cpu_stop_queue_work(stopper, work);
 	else if (work->done)
 		cpu_stop_signal_done(work->done);
 	raw_spin_unlock_irqrestore(&stopper->lock, flags);
 
-	wake_up_q(&wakeq);
+	if (enabled)
+		wake_up_process(stopper->thread);
 	preempt_enable();
 
 	return enabled;
···
 {
 	struct cpu_stopper *stopper1 = per_cpu_ptr(&cpu_stopper, cpu1);
 	struct cpu_stopper *stopper2 = per_cpu_ptr(&cpu_stopper, cpu2);
-	DEFINE_WAKE_Q(wakeq);
 	int err;
 
 retry:
···
 	}
 
 	err = 0;
-	__cpu_stop_queue_work(stopper1, work1, &wakeq);
-	__cpu_stop_queue_work(stopper2, work2, &wakeq);
+	__cpu_stop_queue_work(stopper1, work1);
+	__cpu_stop_queue_work(stopper2, work2);
 
 unlock:
 	raw_spin_unlock(&stopper2->lock);
···
 		goto retry;
 	}
 
-	wake_up_q(&wakeq);
+	if (!err) {
+		wake_up_process(stopper1->thread);
+		wake_up_process(stopper2->thread);
+	}
 	preempt_enable();
 
 	return err;

mm/secretmem.c

···
 	struct file *file;
 	struct inode *inode;
 	const char *anon_name = "[secretmem]";
-	int err;
 
-	inode = alloc_anon_inode(secretmem_mnt->mnt_sb);
+	inode = anon_inode_make_secure_inode(secretmem_mnt->mnt_sb, anon_name, NULL);
 	if (IS_ERR(inode))
 		return ERR_CAST(inode);
-
-	err = security_inode_init_security_anon(inode, &QSTR(anon_name), NULL);
-	if (err) {
-		file = ERR_PTR(err);
-		goto err_free_inode;
-	}
 
 	file = alloc_file_pseudo(inode, secretmem_mnt, "secretmem",
 				 O_RDWR, &secretmem_fops);

net/atm/clip.c

···
 #include <net/atmclip.h>
 
 static struct net_device *clip_devs;
-static struct atm_vcc *atmarpd;
+static struct atm_vcc __rcu *atmarpd;
+static DEFINE_MUTEX(atmarpd_lock);
 static struct timer_list idle_timer;
 static const struct neigh_ops clip_neigh_ops;
 
···
 {
 	struct sock *sk;
 	struct atmarp_ctrl *ctrl;
+	struct atm_vcc *vcc;
 	struct sk_buff *skb;
+	int err = 0;
 
 	pr_debug("(%d)\n", type);
-	if (!atmarpd)
-		return -EUNATCH;
+
+	rcu_read_lock();
+	vcc = rcu_dereference(atmarpd);
+	if (!vcc) {
+		err = -EUNATCH;
+		goto unlock;
+	}
 	skb = alloc_skb(sizeof(struct atmarp_ctrl), GFP_ATOMIC);
-	if (!skb)
-		return -ENOMEM;
+	if (!skb) {
+		err = -ENOMEM;
+		goto unlock;
+	}
 	ctrl = skb_put(skb, sizeof(struct atmarp_ctrl));
 	ctrl->type = type;
 	ctrl->itf_num = itf;
 	ctrl->ip = ip;
-	atm_force_charge(atmarpd, skb->truesize);
+	atm_force_charge(vcc, skb->truesize);
 
-	sk = sk_atm(atmarpd);
+	sk = sk_atm(vcc);
 	skb_queue_tail(&sk->sk_receive_queue, skb);
 	sk->sk_data_ready(sk);
-	return 0;
+unlock:
+	rcu_read_unlock();
+	return err;
 }
 
 static void link_vcc(struct clip_vcc *clip_vcc, struct atmarp_entry *entry)
···
 
 	if (!vcc->push)
 		return -EBADFD;
+	if (vcc->user_back)
+		return -EINVAL;
 	clip_vcc = kmalloc(sizeof(struct clip_vcc), GFP_KERNEL);
 	if (!clip_vcc)
 		return -ENOMEM;
···
 {
 	pr_debug("\n");
 
-	rtnl_lock();
-	atmarpd = NULL;
+	mutex_lock(&atmarpd_lock);
+	RCU_INIT_POINTER(atmarpd, NULL);
+	mutex_unlock(&atmarpd_lock);
+
+	synchronize_rcu();
 	skb_queue_purge(&sk_atm(vcc)->sk_receive_queue);
-	rtnl_unlock();
 
 	pr_debug("(done)\n");
 	module_put(THIS_MODULE);
 }
 
+static int atmarpd_send(struct atm_vcc *vcc, struct sk_buff *skb)
+{
+	atm_return_tx(vcc, skb);
+	dev_kfree_skb_any(skb);
+	return 0;
+}
+
 static const struct atmdev_ops atmarpd_dev_ops = {
-	.close = atmarpd_close
+	.close = atmarpd_close,
+	.send = atmarpd_send
 };
 
 
···
 
 static int atm_init_atmarp(struct atm_vcc *vcc)
 {
-	rtnl_lock();
+	if (vcc->push == clip_push)
+		return -EINVAL;
+
+	mutex_lock(&atmarpd_lock);
 	if (atmarpd) {
-		rtnl_unlock();
+		mutex_unlock(&atmarpd_lock);
 		return -EADDRINUSE;
 	}
 
 	mod_timer(&idle_timer, jiffies + CLIP_CHECK_INTERVAL * HZ);
 
-	atmarpd = vcc;
+	rcu_assign_pointer(atmarpd, vcc);
 	set_bit(ATM_VF_META, &vcc->flags);
 	set_bit(ATM_VF_READY, &vcc->flags);
 	    /* allow replies and avoid getting closed if signaling dies */
···
 	vcc->push = NULL;
 	vcc->pop = NULL; /* crash */
 	vcc->push_oam = NULL; /* crash */
-	rtnl_unlock();
+	mutex_unlock(&atmarpd_lock);
 	return 0;
 }
 
 static int clip_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 {
 	struct atm_vcc *vcc = ATM_SD(sock);
+	struct sock *sk = sock->sk;
 	int err = 0;
 
 	switch (cmd) {
···
 		err = clip_create(arg);
 		break;
 	case ATMARPD_CTRL:
+		lock_sock(sk);
 		err = atm_init_atmarp(vcc);
 		if (!err) {
 			sock->state = SS_CONNECTED;
 			__module_get(THIS_MODULE);
 		}
+		release_sock(sk);
 		break;
 	case ATMARP_MKIP:
+		lock_sock(sk);
 		err = clip_mkip(vcc, arg);
+		release_sock(sk);
 		break;
 	case ATMARP_SETENTRY:
 		err = clip_setentry(vcc, (__force __be32)arg);

net/bluetooth/hci_event.c

···
 		bis->iso_qos.bcast.in.sdu = le16_to_cpu(ev->max_pdu);
 
 		if (!ev->status) {
+			bis->state = BT_CONNECTED;
 			set_bit(HCI_CONN_BIG_SYNC, &bis->flags);
+			hci_debugfs_create_conn(bis);
+			hci_conn_add_sysfs(bis);
 			hci_iso_setup_path(bis);
 		}
 	}

net/bluetooth/hci_sync.c

···
 	 * Command Disallowed error, so we must first disable the
 	 * instance if it is active.
 	 */
-	if (adv && !adv->pending) {
+	if (adv) {
 		err = hci_disable_ext_adv_instance_sync(hdev, instance);
 		if (err)
 			return err;
···
 {
 	struct hci_cp_disconnect cp;
 
-	if (test_bit(HCI_CONN_BIG_CREATED, &conn->flags)) {
+	if (conn->type == BIS_LINK) {
 		/* This is a BIS connection, hci_conn_del will
 		 * do the necessary cleanup.
 		 */

net/ipv4/tcp.c

···
 		goto do_error;
 
 	while (msg_data_left(msg)) {
-		ssize_t copy = 0;
+		int copy = 0;
 
 		skb = tcp_write_queue_tail(sk);
 		if (skb)

net/ipv4/tcp_input.c

···
 		skb_condense(skb);
 		skb_set_owner_r(skb, sk);
 	}
-	tcp_rcvbuf_grow(sk);
+	/* do not grow rcvbuf for not-yet-accepted or orphaned sockets. */
+	if (sk->sk_socket)
+		tcp_rcvbuf_grow(sk);
 }
 
 static int __must_check tcp_queue_rcv(struct sock *sk, struct sk_buff *skb,

net/netlink/af_netlink.c

···
 	WARN_ON(skb->sk != NULL);
 	skb->sk = sk;
 	skb->destructor = netlink_skb_destructor;
-	atomic_add(skb->truesize, &sk->sk_rmem_alloc);
 	sk_mem_charge(sk, skb->truesize);
 }
 
···
 int netlink_attachskb(struct sock *sk, struct sk_buff *skb,
 		      long *timeo, struct sock *ssk)
 {
+	DECLARE_WAITQUEUE(wait, current);
 	struct netlink_sock *nlk;
+	unsigned int rmem;
 
 	nlk = nlk_sk(sk);
+	rmem = atomic_add_return(skb->truesize, &sk->sk_rmem_alloc);
 
-	if ((atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf ||
-	     test_bit(NETLINK_S_CONGESTED, &nlk->state))) {
-		DECLARE_WAITQUEUE(wait, current);
-		if (!*timeo) {
-			if (!ssk || netlink_is_kernel(ssk))
-				netlink_overrun(sk);
-			sock_put(sk);
-			kfree_skb(skb);
-			return -EAGAIN;
-		}
-
-		__set_current_state(TASK_INTERRUPTIBLE);
-		add_wait_queue(&nlk->wait, &wait);
-
-		if ((atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf ||
-		     test_bit(NETLINK_S_CONGESTED, &nlk->state)) &&
-		    !sock_flag(sk, SOCK_DEAD))
-			*timeo = schedule_timeout(*timeo);
-
-		__set_current_state(TASK_RUNNING);
-		remove_wait_queue(&nlk->wait, &wait);
-		sock_put(sk);
-
-		if (signal_pending(current)) {
-			kfree_skb(skb);
-			return sock_intr_errno(*timeo);
-		}
-		return 1;
+	if ((rmem == skb->truesize || rmem < READ_ONCE(sk->sk_rcvbuf)) &&
+	    !test_bit(NETLINK_S_CONGESTED, &nlk->state)) {
+		netlink_skb_set_owner_r(skb, sk);
+		return 0;
 	}
-	netlink_skb_set_owner_r(skb, sk);
-	return 0;
+
+	atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
+
+	if (!*timeo) {
+		if (!ssk || netlink_is_kernel(ssk))
+			netlink_overrun(sk);
+		sock_put(sk);
+		kfree_skb(skb);
+		return -EAGAIN;
+	}
+
+	__set_current_state(TASK_INTERRUPTIBLE);
+	add_wait_queue(&nlk->wait, &wait);
+	rmem = atomic_read(&sk->sk_rmem_alloc);
+
+	if (((rmem && rmem + skb->truesize > READ_ONCE(sk->sk_rcvbuf)) ||
+	     test_bit(NETLINK_S_CONGESTED, &nlk->state)) &&
+	    !sock_flag(sk, SOCK_DEAD))
+		*timeo = schedule_timeout(*timeo);
+
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(&nlk->wait, &wait);
+	sock_put(sk);
+
+	if (signal_pending(current)) {
+		kfree_skb(skb);
+		return sock_intr_errno(*timeo);
+	}
+
+	return 1;
 }
 
 static int __netlink_sendskb(struct sock *sk, struct sk_buff *skb)
···
 	ret = -ECONNREFUSED;
 	if (nlk->netlink_rcv != NULL) {
 		ret = skb->len;
+		atomic_add(skb->truesize, &sk->sk_rmem_alloc);
 		netlink_skb_set_owner_r(skb, sk);
 		NETLINK_CB(skb).sk = ssk;
 		netlink_deliver_tap_kernel(sk, ssk, skb);
···
 static int netlink_broadcast_deliver(struct sock *sk, struct sk_buff *skb)
 {
 	struct netlink_sock *nlk = nlk_sk(sk);
+	unsigned int rmem, rcvbuf;
 
-	if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf &&
+	rmem = atomic_add_return(skb->truesize, &sk->sk_rmem_alloc);
+	rcvbuf = READ_ONCE(sk->sk_rcvbuf);
+
+	if ((rmem != skb->truesize || rmem <= rcvbuf) &&
 	    !test_bit(NETLINK_S_CONGESTED, &nlk->state)) {
 		netlink_skb_set_owner_r(skb, sk);
 		__netlink_sendskb(sk, skb);
-		return atomic_read(&sk->sk_rmem_alloc) > (sk->sk_rcvbuf >> 1);
+		return rmem > (rcvbuf >> 1);
 	}
+
+	atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
 	return -1;
 }
 
···
 	struct module *module;
 	int err = -ENOBUFS;
 	int alloc_min_size;
+	unsigned int rmem;
 	int alloc_size;
 
 	if (!lock_taken)
···
 		err = -EINVAL;
 		goto errout_skb;
 	}
-
-	if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
-		goto errout_skb;
 
 	/* NLMSG_GOODSIZE is small to avoid high order allocations being
 	 * required, but it makes sense to _attempt_ a 32KiB allocation
···
 	}
 	if (!skb)
 		goto errout_skb;
+
+	rmem = atomic_add_return(skb->truesize, &sk->sk_rmem_alloc);
+	if (rmem >= READ_ONCE(sk->sk_rcvbuf)) {
+		atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
+		goto errout_skb;
+	}
 
 	/* Trim skb to allocated size. User is expected to provide buffer as
 	 * large as max(min_dump_alloc, 32KiB (max_recvmsg_len capped at

net/rxrpc/ar-internal.h

···
 	struct list_head	new_client_calls; /* Newly created client calls need connection */
 	spinlock_t		client_call_lock; /* Lock for ->new_client_calls */
 	struct sockaddr_rxrpc	srx;		/* local address */
-	/* Provide a kvec table sufficiently large to manage either a DATA
-	 * packet with a maximum set of jumbo subpackets or a PING ACK padded
-	 * out to 64K with zeropages for PMTUD.
-	 */
-	struct kvec		kvec[1 + RXRPC_MAX_NR_JUMBO > 3 + 16 ?
-				     1 + RXRPC_MAX_NR_JUMBO : 3 + 16];
+	union {
+		/* Provide a kvec table sufficiently large to manage either a
+		 * DATA packet with a maximum set of jumbo subpackets or a PING
+		 * ACK padded out to 64K with zeropages for PMTUD.
+		 */
+		struct kvec		kvec[1 + RXRPC_MAX_NR_JUMBO > 3 + 16 ?
+					     1 + RXRPC_MAX_NR_JUMBO : 3 + 16];
+		struct bio_vec		bvec[3 + 16];
+	};
 };
 
 /*

net/rxrpc/call_accept.c

···
 
 id_in_use:
 	write_unlock(&rx->call_lock);
+	rxrpc_prefail_call(call, RXRPC_CALL_LOCAL_ERROR, -EBADSLT);
 	rxrpc_cleanup_call(call);
 	_leave(" = -EBADSLT");
 	return -EBADSLT;
···
 	unsigned short call_head, conn_head, peer_head;
 	unsigned short call_tail, conn_tail, peer_tail;
 	unsigned short call_count, conn_count;
+
+	if (!b)
+		return NULL;
 
 	/* #calls >= #conns >= #peers must hold true. */
 	call_head = smp_load_acquire(&b->call_backlog_head);

net/rxrpc/output.c

···
 {
 	struct rxrpc_skb_priv *sp = rxrpc_skb(response);
 	struct scatterlist sg[16];
-	struct bio_vec bvec[16];
+	struct bio_vec *bvec = conn->local->bvec;
 	struct msghdr msg;
 	size_t len = sp->resp.len;
 	__be32 wserial;
···
 	if (ret < 0)
 		goto fail;
 	nr_sg = ret;
+	ret = -EIO;
+	if (WARN_ON_ONCE(nr_sg > ARRAY_SIZE(conn->local->bvec)))
+		goto fail;
 
 	for (int i = 0; i < nr_sg; i++)
 		bvec_set_page(&bvec[i], sg_page(&sg[i]), sg[i].length, sg[i].offset);

net/sched/sch_api.c

···
 	return q;
 }
 
-static struct Qdisc *qdisc_leaf(struct Qdisc *p, u32 classid)
+static struct Qdisc *qdisc_leaf(struct Qdisc *p, u32 classid,
+				struct netlink_ext_ack *extack)
 {
 	unsigned long cl;
 	const struct Qdisc_class_ops *cops = p->ops->cl_ops;
 
-	if (cops == NULL)
-		return NULL;
+	if (cops == NULL) {
+		NL_SET_ERR_MSG(extack, "Parent qdisc is not classful");
+		return ERR_PTR(-EOPNOTSUPP);
+	}
 	cl = cops->find(p, classid);
 
-	if (cl == 0)
-		return NULL;
+	if (cl == 0) {
+		NL_SET_ERR_MSG(extack, "Specified class not found");
+		return ERR_PTR(-ENOENT);
+	}
 	return cops->leaf(p, cl);
 }
 
···
 		pkt_len = 1;
 	qdisc_skb_cb(skb)->pkt_len = pkt_len;
 }
-
-void qdisc_warn_nonwc(const char *txt, struct Qdisc *qdisc)
-{
-	if (!(qdisc->flags & TCQ_F_WARN_NONWC)) {
-		pr_warn("%s: %s qdisc %X: is non-work-conserving?\n",
-			txt, qdisc->ops->id, qdisc->handle >> 16);
-		qdisc->flags |= TCQ_F_WARN_NONWC;
-	}
-}
-EXPORT_SYMBOL(qdisc_warn_nonwc);
 
 static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer)
 {
···
 					NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified classid");
 					return -ENOENT;
 				}
-				q = qdisc_leaf(p, clid);
+				q = qdisc_leaf(p, clid, extack);
 			} else if (dev_ingress_queue(dev)) {
 				q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
 			}
···
 			NL_SET_ERR_MSG(extack, "Cannot find specified qdisc on specified device");
 			return -ENOENT;
 		}
+		if (IS_ERR(q))
+			return PTR_ERR(q);
 
 		if (tcm->tcm_handle && q->handle != tcm->tcm_handle) {
 			NL_SET_ERR_MSG(extack, "Invalid handle");
···
 					NL_SET_ERR_MSG(extack, "Failed to find specified qdisc");
 					return -ENOENT;
 				}
-				q = qdisc_leaf(p, clid);
+				q = qdisc_leaf(p, clid, extack);
+				if (IS_ERR(q))
+					return PTR_ERR(q);
 			} else if (dev_ingress_queue_create(dev)) {
 				q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
 			}

net/sched/sch_hfsc.c

···
 	}
 }
 
-static unsigned int
-qdisc_peek_len(struct Qdisc *sch)
-{
-	struct sk_buff *skb;
-	unsigned int len;
-
-	skb = sch->ops->peek(sch);
-	if (unlikely(skb == NULL)) {
-		qdisc_warn_nonwc("qdisc_peek_len", sch);
-		return 0;
-	}
-	len = qdisc_pkt_len(skb);
-
-	return len;
-}
-
 static void
 hfsc_adjust_levels(struct hfsc_class *cl)
 {

net/sched/sch_qfq.c

···
 
 	if (cl->qdisc->q.qlen == 0) /* no more packets, remove from list */
 		list_del_init(&cl->alist);
-	else if (cl->deficit < qdisc_pkt_len(cl->qdisc->ops->peek(cl->qdisc))) {
+	else if (cl->deficit < qdisc_peek_len(cl->qdisc)) {
 		cl->deficit += agg->lmax;
 		list_move_tail(&cl->alist, &agg->active);
 	}

net/tipc/topsrv.c

···
 	for (id = 0; srv->idr_in_use; id++) {
 		con = idr_find(&srv->conn_idr, id);
 		if (con) {
+			conn_get(con);
 			spin_unlock_bh(&srv->idr_lock);
 			tipc_conn_close(con);
+			conn_put(con);
 			spin_lock_bh(&srv->idr_lock);
 		}
 	}

net/vmw_vsock/af_vsock.c

···
 
 static bool vsock_use_local_transport(unsigned int remote_cid)
 {
+	lockdep_assert_held(&vsock_register_mutex);
+
 	if (!transport_local)
 		return false;
 
···
 
 	remote_flags = vsk->remote_addr.svm_flags;
 
+	mutex_lock(&vsock_register_mutex);
+
 	switch (sk->sk_type) {
 	case SOCK_DGRAM:
 		new_transport = transport_dgram;
···
 			new_transport = transport_h2g;
 		break;
 	default:
-		return -ESOCKTNOSUPPORT;
+		ret = -ESOCKTNOSUPPORT;
+		goto err;
 	}
 
 	if (vsk->transport) {
-		if (vsk->transport == new_transport)
-			return 0;
+		if (vsk->transport == new_transport) {
+			ret = 0;
+			goto err;
+		}
 
 		/* transport->release() must be called with sock lock acquired.
 		 * This path can only be taken during vsock_connect(), where we
···
 	/* We increase the module refcnt to prevent the transport unloading
 	 * while there are open sockets assigned to it.
 	 */
-	if (!new_transport || !try_module_get(new_transport->module))
-		return -ENODEV;
+	if (!new_transport || !try_module_get(new_transport->module)) {
+		ret = -ENODEV;
+		goto err;
+	}
+
+	/* It's safe to release the mutex after a successful try_module_get().
+	 * Whichever transport `new_transport` points at, it won't go away until
+	 * the last module_put() below or in vsock_deassign_transport().
+	 */
+	mutex_unlock(&vsock_register_mutex);
 
 	if (sk->sk_type == SOCK_SEQPACKET) {
 		if (!new_transport->seqpacket_allow ||
···
 	vsk->transport = new_transport;
 
 	return 0;
+err:
+	mutex_unlock(&vsock_register_mutex);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(vsock_assign_transport);
 
+/*
+ * Provide safe access to static transport_{h2g,g2h,dgram,local} callbacks.
+ * Otherwise we may race with module removal. Do not use on `vsk->transport`.
+ */
+static u32 vsock_registered_transport_cid(const struct vsock_transport **transport)
+{
+	u32 cid = VMADDR_CID_ANY;
+
+	mutex_lock(&vsock_register_mutex);
+	if (*transport)
+		cid = (*transport)->get_local_cid();
+	mutex_unlock(&vsock_register_mutex);
+
+	return cid;
+}
+
 bool vsock_find_cid(unsigned int cid)
 {
-	if (transport_g2h && cid == transport_g2h->get_local_cid())
+	if (cid == vsock_registered_transport_cid(&transport_g2h))
 		return true;
 
 	if (transport_h2g && cid == VMADDR_CID_HOST)
···
 			       unsigned int cmd, void __user *ptr)
 {
 	u32 __user *p = ptr;
-	u32 cid = VMADDR_CID_ANY;
 	int retval = 0;
+	u32 cid;
 
 	switch (cmd) {
 	case IOCTL_VM_SOCKETS_GET_LOCAL_CID:
 		/* To be compatible with the VMCI behavior, we prioritize the
 		 * guest CID instead of well-know host CID (VMADDR_CID_HOST).
 		 */
-		if (transport_g2h)
-			cid = transport_g2h->get_local_cid();
-		else if (transport_h2g)
-			cid = transport_h2g->get_local_cid();
+		cid = vsock_registered_transport_cid(&transport_g2h);
+		if (cid == VMADDR_CID_ANY)
+			cid = vsock_registered_transport_cid(&transport_h2g);
+		if (cid == VMADDR_CID_ANY)
+			cid = vsock_registered_transport_cid(&transport_local);
 
 		if (put_user(cid, p) != 0)
 			retval = -EFAULT;

sound/isa/ad1816a/ad1816a.c

···
 	pdev = pnp_request_card_device(card, id->devs[1].id, NULL);
 	if (pdev == NULL) {
 		mpu_port[dev] = -1;
-		dev_warn(&pdev->dev, "MPU401 device busy, skipping.\n");
+		pr_warn("MPU401 device busy, skipping.\n");
 		return 0;
 	}
 

sound/pci/hda/patch_hdmi.c

···
 HDA_CODEC_ENTRY(0x10de002f, "Tegra194 HDMI/DP2", patch_tegra_hdmi),
 HDA_CODEC_ENTRY(0x10de0030, "Tegra194 HDMI/DP3", patch_tegra_hdmi),
 HDA_CODEC_ENTRY(0x10de0031, "Tegra234 HDMI/DP", patch_tegra234_hdmi),
+HDA_CODEC_ENTRY(0x10de0033, "SoC 33 HDMI/DP",	patch_tegra234_hdmi),
 HDA_CODEC_ENTRY(0x10de0034, "Tegra264 HDMI/DP",	patch_tegra234_hdmi),
+HDA_CODEC_ENTRY(0x10de0035, "SoC 35 HDMI/DP",	patch_tegra234_hdmi),
 HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
···
 HDA_CODEC_ENTRY(0x10de0098, "GPU 98 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0099, "GPU 99 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de009a, "GPU 9a HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de009b, "GPU 9b HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de009c, "GPU 9c HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de009d, "GPU 9d HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de009e, "GPU 9e HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de009f, "GPU 9f HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de00a0, "GPU a0 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a1, "GPU a1 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de00a3, "GPU a3 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de00a4, "GPU a4 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de00a5, "GPU a5 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de00a6, "GPU a6 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de00a7, "GPU a7 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a8, "GPU a8 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00a9, "GPU a9 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00aa, "GPU aa HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00ab, "GPU ab HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00ad, "GPU ad HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00ae, "GPU ae HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00af, "GPU af HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00b0, "GPU b0 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00b1, "GPU b1 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00c0, "GPU c0 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00c1, "GPU c1 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00c3, "GPU c3 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00c4, "GPU c4 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de00c5, "GPU c5 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",	patch_nvhdmi_2ch),
 HDA_CODEC_ENTRY(0x10de8067, "MCP67/68 HDMI",	patch_nvhdmi_2ch),
 HDA_CODEC_ENTRY(0x67663d82, "Arise 82 HDMI/DP",	patch_gf_hdmi),

sound/pci/hda/patch_realtek.c

···
 	SND_PCI_QUIRK(0x103c, 0x8ce0, "HP SnowWhite", ALC287_FIXUP_CS35L41_I2C_2_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8cf5, "HP ZBook Studio 16", ALC245_FIXUP_CS35L41_SPI_4_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8d01, "HP ZBook Power 14 G12", ALC285_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x8d07, "HP Victus 15-fb2xxx (MB 8D07)", ALC245_FIXUP_HP_MUTE_LED_COEFBIT),
 	SND_PCI_QUIRK(0x103c, 0x8d18, "HP EliteStudio 8 AIO", ALC274_FIXUP_HP_AIO_BIND_DACS),
 	SND_PCI_QUIRK(0x103c, 0x8d84, "HP EliteBook X G1i", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8d85, "HP EliteBook 14 G12", ALC285_FIXUP_HP_GPIO_LED),
···
 	SND_PCI_QUIRK(0x1043, 0x1e63, "ASUS H7606W", ALC285_FIXUP_ASUS_GU605_SPI_SPEAKER2_TO_DAC1),
 	SND_PCI_QUIRK(0x1043, 0x1e83, "ASUS GA605W", ALC285_FIXUP_ASUS_GU605_SPI_SPEAKER2_TO_DAC1),
 	SND_PCI_QUIRK(0x1043, 0x1e8e, "ASUS Zephyrus G15", ALC289_FIXUP_ASUS_GA401),
+	SND_PCI_QUIRK(0x1043, 0x1e93, "ASUS ExpertBook B9403CVAR", ALC294_FIXUP_ASUS_HPE),
 	SND_PCI_QUIRK(0x1043, 0x1eb3, "ASUS Ally RCLA72", ALC287_FIXUP_TAS2781_I2C),
 	SND_PCI_QUIRK(0x1043, 0x1ed3, "ASUS HN7306W", ALC287_FIXUP_CS35L41_I2C_2),
 	SND_PCI_QUIRK(0x1043, 0x1ee2, "ASUS UM6702RA/RC", ALC287_FIXUP_CS35L41_I2C_2),
···
 	SND_PCI_QUIRK(0x2782, 0x0228, "Infinix ZERO BOOK 13", ALC269VB_FIXUP_INFINIX_ZERO_BOOK_13),
 	SND_PCI_QUIRK(0x2782, 0x0232, "CHUWI CoreBook XPro", ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO),
 	SND_PCI_QUIRK(0x2782, 0x1407, "Positivo P15X", ALC269_FIXUP_POSITIVO_P15X_HEADSET_MIC),
+	SND_PCI_QUIRK(0x2782, 0x1409, "Positivo K116J", ALC269_FIXUP_POSITIVO_P15X_HEADSET_MIC),
 	SND_PCI_QUIRK(0x2782, 0x1701, "Infinix Y4 Max", ALC269VC_FIXUP_INFINIX_Y4_MAX),
 	SND_PCI_QUIRK(0x2782, 0x1705, "MEDION E15433", ALC269VC_FIXUP_INFINIX_Y4_MAX),
 	SND_PCI_QUIRK(0x2782, 0x1707, "Vaio VJFE-ADL", ALC298_FIXUP_SPK_VOLUME),

sound/pci/hda/tas2781_hda.c

···
 		TASDEVICE_REG(0, 0x13, 0x70),
 		TASDEVICE_REG(0, 0x18, 0x7c),
 	};
-	unsigned int crc, oft;
+	unsigned int crc, oft, node_num;
 	unsigned char *buf;
 	int i, j, k, l;
 
···
 			dev_err(p->dev, "%s: CRC error\n", __func__);
 			return;
 		}
+		node_num = tmp_val[1];
 
-		for (j = 0, k = 0; j < tmp_val[1]; j++) {
+		for (j = 0, k = 0; j < node_num; j++) {
 			oft = j * 6 + 3;
 			if (tmp_val[oft] == TASDEV_UEFI_CALI_REG_ADDR_FLG) {
 				for (i = 0; i < TASDEV_CALIB_N; i++) {
···
 				}
 
 				data[l] = k;
+				oft++;
 				for (i = 0; i < TASDEV_CALIB_N * 4; i++)
-					data[l + i] = data[4 * oft + i];
+					data[l + i + 1] = data[4 * oft + i];
 				k++;
 			}
 		}

sound/soc/codecs/cs35l56-shared.c

···
 		break;
 	default:
 		dev_err(cs35l56_base->dev, "Unknown device %x\n", devid);
-		return ret;
+		return -ENODEV;
 	}
 
 	cs35l56_base->type = devid & 0xFF;

sound/soc/fsl/fsl_asrc.c

···
 	regmap_update_bits(asrc->regmap, REG_ASRCTR,
 			   ASRCTR_ATSi_MASK(index), ASRCTR_ATS(index));
 	regmap_update_bits(asrc->regmap, REG_ASRCTR,
-			   ASRCTR_USRi_MASK(index), 0);
+			   ASRCTR_IDRi_MASK(index) | ASRCTR_USRi_MASK(index),
+			   ASRCTR_USR(index));
 
 	/* Set the input and output clock sources */
 	regmap_update_bits(asrc->regmap, REG_ASRCSR,

sound/soc/fsl/fsl_sai.c

···
 	 * anymore. Add software reset to fix this issue.
 	 * This is a hardware bug, and will be fix in the
 	 * next sai version.
+	 *
+	 * In consumer mode, this can happen even after a
+	 * single open/close, especially if both tx and rx
+	 * are running concurrently.
 	 */
-	if (!sai->is_consumer_mode[tx]) {
-		/* Software Reset */
-		regmap_write(sai->regmap, FSL_SAI_xCSR(tx, ofs), FSL_SAI_CSR_SR);
-		/* Clear SR bit to finish the reset */
-		regmap_write(sai->regmap, FSL_SAI_xCSR(tx, ofs), 0);
-	}
+	/* Software Reset */
+	regmap_write(sai->regmap, FSL_SAI_xCSR(tx, ofs), FSL_SAI_CSR_SR);
+	/* Clear SR bit to finish the reset */
+	regmap_write(sai->regmap, FSL_SAI_xCSR(tx, ofs), 0);
 }
 
 static int fsl_sai_trigger(struct snd_pcm_substream *substream, int cmd,

sound/soc/intel/boards/Kconfig

···
 	tristate
 
 config SND_SOC_INTEL_SOF_BOARD_HELPERS
+	select SND_SOC_ACPI_INTEL_MATCH
 	tristate
 
 if SND_SOC_INTEL_CATPT

sound/soc/intel/boards/sof_sdw.c

···
 static const struct snd_pci_quirk sof_sdw_ssid_quirk_table[] = {
 	SND_PCI_QUIRK(0x1043, 0x1e13, "ASUS Zenbook S14", SOC_SDW_CODEC_MIC),
 	SND_PCI_QUIRK(0x1043, 0x1f43, "ASUS Zenbook S16", SOC_SDW_CODEC_MIC),
+	SND_PCI_QUIRK(0x17aa, 0x2347, "Lenovo P16", SOC_SDW_CODEC_MIC),
+	SND_PCI_QUIRK(0x17aa, 0x2348, "Lenovo P16", SOC_SDW_CODEC_MIC),
+	SND_PCI_QUIRK(0x17aa, 0x2349, "Lenovo P1", SOC_SDW_CODEC_MIC),
 	{}
 };
 

sound/soc/intel/common/soc-acpi-intel-arl-match.c

···
 		.get_function_tplg_files = sof_sdw_get_tplg_files,
 	},
 	{
-		.link_mask = BIT(2),
-		.links = arl_cs42l43_l2,
-		.drv_name = "sof_sdw",
-		.sof_tplg_filename = "sof-arl-cs42l43-l2.tplg",
-		.get_function_tplg_files = sof_sdw_get_tplg_files,
-	},
-	{
 		.link_mask = BIT(2) | BIT(3),
 		.links = arl_cs42l43_l2_cs35l56_l3,
 		.drv_name = "sof_sdw",
 		.sof_tplg_filename = "sof-arl-cs42l43-l2-cs35l56-l3.tplg",
+		.get_function_tplg_files = sof_sdw_get_tplg_files,
+	},
+	{
+		.link_mask = BIT(2),
+		.links = arl_cs42l43_l2,
+		.drv_name = "sof_sdw",
+		.sof_tplg_filename = "sof-arl-cs42l43-l2.tplg",
 		.get_function_tplg_files = sof_sdw_get_tplg_files,
 	},
 	{

sound/usb/format.c

···
 					struct audioformat *fp,
 					unsigned int rate)
 {
-	struct usb_interface *iface;
 	struct usb_host_interface *alts;
 	unsigned char *fmt;
 	unsigned int max_rate;
 
-	iface = usb_ifnum_to_if(chip->dev, fp->iface);
-	if (!iface)
+	alts = snd_usb_get_host_interface(chip, fp->iface, fp->altsetting);
+	if (!alts)
 		return true;
 
-	alts = &iface->altsetting[fp->altset_idx];
 	fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen,
 				      NULL, UAC_FORMAT_TYPE);
 	if (!fmt)
···
 	if (fmt[0] == 10) { /* bLength */
 		max_rate = combine_quad(&fmt[6]);
 
-		/* Validate max rate */
-		if (max_rate != 48000 &&
-		    max_rate != 96000 &&
-		    max_rate != 192000 &&
-		    max_rate != 384000) {
-
+		switch (max_rate) {
+		case 48000:
+			return (rate == 44100 || rate == 48000);
+		case 96000:
+			return (rate == 88200 || rate == 96000);
+		case 192000:
+			return (rate == 176400 || rate == 192000);
+		default:
 			usb_audio_info(chip,
 				"%u:%d : unexpected max rate: %u\n",
 				fp->iface, fp->altsetting, max_rate);
 
 			return true;
 		}
-
-		return rate <= max_rate;
 	}
 
 	return true;

tools/include/uapi/linux/bits.h

···
 #ifndef _UAPI_LINUX_BITS_H
 #define _UAPI_LINUX_BITS_H
 
-#define __GENMASK(h, l) (((~_UL(0)) << (l)) & (~_UL(0) >> (BITS_PER_LONG - 1 - (h))))
+#define __GENMASK(h, l) (((~_UL(0)) << (l)) & (~_UL(0) >> (__BITS_PER_LONG - 1 - (h))))
 
-#define __GENMASK_ULL(h, l) (((~_ULL(0)) << (l)) & (~_ULL(0) >> (BITS_PER_LONG_LONG - 1 - (h))))
+#define __GENMASK_ULL(h, l) (((~_ULL(0)) << (l)) & (~_ULL(0) >> (__BITS_PER_LONG_LONG - 1 - (h))))
 
 #define __GENMASK_U128(h, l) \
 	((_BIT128((h)) << 1) - (_BIT128(l)))

tools/objtool/check.c

···
 
 	for_each_reloc(sec->rsec, reloc) {
 		type = *(u32 *)(sec->data->d_buf + (reloc_idx(reloc) * sec->sh.sh_entsize) + 4);
+		type = bswap_if_needed(file->elf, type);
 
 		offset = reloc->sym->offset + reloc_addend(reloc);
 		insn = find_insn(file, reloc->sym->sec, offset);

tools/testing/selftests/coredump/stackdump_test.c

···
 			_exit(EXIT_FAILURE);
 		}
 
+		ret = read(fd_coredump, &c, 1);
+
 		close(fd_coredump);
 		close(fd_server);
 		close(fd_peer_pidfd);
 		close(fd_core_file);
+
+		if (ret < 1)
+			_exit(EXIT_FAILURE);
 		_exit(EXIT_SUCCESS);
 	}
 	self->pid_coredump_server = pid_coredump_server;

tools/testing/selftests/futex/functional/.gitignore

···
 futex_wait_uninitialized_heap
 futex_wait_wouldblock
 futex_waitv
+futex_numa

tools/testing/selftests/kvm/x86/monitor_mwait_test.c

···
 	int testcase;
 	char test[80];
 
+	TEST_REQUIRE(this_cpu_has(X86_FEATURE_MWAIT));
 	TEST_REQUIRE(kvm_has_cap(KVM_CAP_DISABLE_QUIRKS2));
 
 	ksft_print_header();

tools/testing/selftests/net/packetdrill/tcp_ooo-before-and-after-accept.pkt

···
+// SPDX-License-Identifier: GPL-2.0
+
+--mss=1000
+
+`./defaults.sh
+sysctl -q net.ipv4.tcp_rmem="4096 131072 $((32*1024*1024))"`
+
+// Test that a not-yet-accepted socket does not change
+// its initial sk_rcvbuf (tcp_rmem[1]) when receiving ooo packets.
+
+   +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10>
+  +.1 < . 1:1(0) ack 1 win 257
+  +0  < . 2001:41001(39000) ack 1 win 257
+  +0  > . 1:1(0) ack 1 <nop,nop,sack 2001:41001>
+  +0  < . 41001:101001(60000) ack 1 win 257
+  +0  > . 1:1(0) ack 1 <nop,nop,sack 2001:101001>
+  +0  < . 1:1001(1000) ack 1 win 257
+  +0  > . 1:1(0) ack 1001 <nop,nop,sack 2001:101001>
+  +0  < . 1001:2001(1000) ack 1 win 257
+  +0  > . 1:1(0) ack 101001
+
+  +0 accept(3, ..., ...) = 4
+
+  +0 %{ assert SK_MEMINFO_RCVBUF == 131072, SK_MEMINFO_RCVBUF }%
+
+  +0 close(4) = 0
+  +0 close(3) = 0
+
+// Test that ooo packets for accepted sockets do increase sk_rcvbuf
+   +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10>
+  +.1 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+  +0  < . 2001:41001(39000) ack 1 win 257
+  +0  > . 1:1(0) ack 1 <nop,nop,sack 2001:41001>
+  +0  < . 41001:101001(60000) ack 1 win 257
+  +0  > . 1:1(0) ack 1 <nop,nop,sack 2001:101001>
+
+  +0 %{ assert SK_MEMINFO_RCVBUF > 131072, SK_MEMINFO_RCVBUF }%
+

tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json

···
             "$TC qdisc del dev $DUMMY handle 1:0 root",
             "$IP addr del 10.10.10.10/24 dev $DUMMY || true"
         ]
+    },
+    {
+        "id": "d74b",
+        "name": "Test use-after-free with DRR/NETEM/BLACKHOLE chain",
+        "category": [
+            "qdisc",
+            "hfsc",
+            "drr",
+            "netem",
+            "blackhole"
+        ],
+        "plugins": {
+            "requires": [
+                "nsPlugin",
+                "scapyPlugin"
+            ]
+        },
+        "setup": [
+            "$IP link set dev $DUMMY up || true",
+            "$IP addr add 10.10.11.10/24 dev $DUMMY || true",
+            "$TC qdisc add dev $DUMMY root handle 1: drr",
+            "$TC filter add dev $DUMMY parent 1: basic classid 1:1",
+            "$TC class add dev $DUMMY parent 1: classid 1:1 drr",
+            "$TC qdisc add dev $DUMMY parent 1:1 handle 2: hfsc def 1",
+            "$TC class add dev $DUMMY parent 2: classid 2:1 hfsc rt m1 8 d 1 m2 0",
+            "$TC qdisc add dev $DUMMY parent 2:1 handle 3: netem",
+            "$TC qdisc add dev $DUMMY parent 3:1 handle 4: blackhole",
+            "ping -c1 -W0.01 -I $DUMMY 10.10.11.11 || true",
+            "$TC class del dev $DUMMY classid 1:1"
+        ],
+        "cmdUnderTest": "ping -c1 -W0.01 -I $DUMMY 10.10.11.11",
+        "expExitCode": "1",
+        "verifyCmd": "$TC -j class ls dev $DUMMY classid 1:1",
+        "matchJSON": [],
+        "teardown": [
+            "$TC qdisc del dev $DUMMY root handle 1: drr"
+        ]
     }
 ]

virt/kvm/kvm_main.c

···
 		r = xa_reserve(&kvm->mem_attr_array, i, GFP_KERNEL_ACCOUNT);
 		if (r)
 			goto out_unlock;
+
+		cond_resched();
 	}
 
 	kvm_handle_gfn_range(kvm, &pre_set_range);
···
 		r = xa_err(xa_store(&kvm->mem_attr_array, i, entry,
 				    GFP_KERNEL_ACCOUNT));
 		KVM_BUG_ON(r, kvm);
+		cond_resched();
 	}
 
 	kvm_handle_gfn_range(kvm, &post_set_range);