Merge tag 'mvebu-fixes-4.12-1' of git://git.infradead.org/linux-mvebu into fixes

mvebu fixes for 4.12

Fix the interrupt description of the crypto node for device tree of
the Armada 7K/8K SoCs

* tag 'mvebu-fixes-4.12-1' of git://git.infradead.org/linux-mvebu: (316 commits)
arm64: marvell: dts: fix interrupts in 7k/8k crypto nodes
+ Linux 4.12-rc2

Signed-off-by: Olof Johansson <[e-mail]>

Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt

···
-Hi6220 SoC ION
-===================================================================
-Required properties:
-- compatible : "hisilicon,hi6220-ion"
-- list of the ION heaps
-	- heap name : maybe heap_sys_user@0
-	- heap id   : id should be unique in the system.
-	- heap base : base ddr address of the heap,0 means that
-	it is dynamic.
-	- heap size : memory size and 0 means it is dynamic.
-	- heap type : the heap type of the heap, please also
-	see the define in ion.h(drivers/staging/android/uapi/ion.h)
--------------------------------------------------------------------
-Example:
-	hi6220-ion {
-		compatible = "hisilicon,hi6220-ion";
-		heap_sys_user@0 {
-			heap-name = "sys_user";
-			heap-id   = <0x0>;
-			heap-base = <0x0>;
-			heap-size = <0x0>;
-			heap-type = "ion_system";
-		};
-		heap_sys_contig@0 {
-			heap-name = "sys_contig";
-			heap-id   = <0x1>;
-			heap-base = <0x0>;
-			heap-size = <0x0>;
-			heap-type = "ion_system_contig";
-		};
-	};

Documentation/usb/typec.rst

···
 registering/unregistering cables and their plugs:
 
 .. kernel-doc:: drivers/usb/typec/typec.c
-   :functions: typec_register_cable typec_unregister_cable typec_register_plug
-   typec_unregister_plug
+   :functions: typec_register_cable typec_unregister_cable typec_register_plug typec_unregister_plug
 
 The class will provide a handle to struct typec_cable and struct typec_plug if
 the registration is successful, or NULL if it isn't.
···
 APIs to report it to the class:
 
 .. kernel-doc:: drivers/usb/typec/typec.c
-   :functions: typec_set_data_role typec_set_pwr_role typec_set_vconn_role
-   typec_set_pwr_opmode
+   :functions: typec_set_data_role typec_set_pwr_role typec_set_vconn_role typec_set_pwr_opmode
 
 Alternate Modes
 ~~~~~~~~~~~~~~~

Documentation/watchdog/watchdog-parameters.txt

···
 -------------------------------------------------
 iTCO_wdt:
 heartbeat: Watchdog heartbeat in seconds.
-	(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
+	(5<=heartbeat<=74 (TCO v1) or 1226 (TCO v2), default=30)
 nowayout: Watchdog cannot be stopped once started
 	(default=kernel config parameter)
 -------------------------------------------------

MAINTAINERS

···
 M:	Sumit Semwal <[e-mail]>
 L:	[e-mail]
 S:	Supported
-F:	Documentation/devicetree/bindings/staging/ion/
 F:	drivers/staging/android/ion
 F:	drivers/staging/android/uapi/ion.h
 F:	drivers/staging/android/uapi/ion_test.h
···
 F:	drivers/net/ieee802154/cc2520.c
 F:	include/linux/spi/cc2520.h
 F:	Documentation/devicetree/bindings/net/ieee802154/cc2520.txt
+
+CCREE ARM TRUSTZONE CRYPTOCELL 700 REE DRIVER
+M:	Gilad Ben-Yossef <[e-mail]>
+L:	[e-mail]
+L:	[e-mail]
+S:	Supported
+F:	drivers/staging/ccree/
+W:	https://developer.arm.com/products/system-ip/trustzone-cryptocell/cryptocell-700-family
 
 CEC FRAMEWORK
 M:	Hans Verkuil <[e-mail]>
···
 M:	Greg Kroah-Hartman <[e-mail]>
 S:	Maintained
 F:	drivers/staging/greybus/
-L:	[e-mail]
+L:	[e-mail] (moderated for non-subscribers)
 
 GREYBUS AUDIO PROTOCOLS DRIVERS
 M:	Vaibhav Agarwal <[e-mail]>
···
 
 OSD LIBRARY and FILESYSTEM
 M:	Boaz Harrosh <[e-mail]>
-M:	Benny Halevy <[e-mail]>
-L:	[e-mail]
-W:	http://open-osd.org
-T:	git git://git.open-osd.org/open-osd.git
 S:	Maintained
 F:	drivers/scsi/osd/
 F:	include/scsi/osd_*

Makefile

···
 VERSION = 4
 PATCHLEVEL = 12
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
 NAME = Fearless Coyote
 
 # *DOCUMENTATION*
···
 PHONY += headers_check
 headers_check: headers_install
 	$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
-	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/ $(hdr-dst) HDRCHECK=1
+	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst) HDRCHECK=1
 
 # ---------------------------------------------------------------------------
 # Kernel selftest

arch/alpha/kernel/osf_sys.c

···
 	if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
 		return -EFAULT;
 
-	err = 0;
-	err |= put_user(status, ustatus);
+	err = put_user(status, ustatus);
+	if (ret < 0)
+		return err ? err : ret;
+
 	err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
 	err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
 	err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);

arch/arm/include/asm/kvm_coproc.h

···
 int kvm_handle_cp10_id(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int kvm_handle_cp_0_13_access(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int kvm_handle_cp14_load_store(struct kvm_vcpu *vcpu, struct kvm_run *run);
-int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run);
+int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run);
+int kvm_handle_cp14_64(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run);
 

arch/arm/kvm/coproc.c

···
 #include <asm/vfp.h>
 #include "../vfp/vfpinstr.h"
 
+#define CREATE_TRACE_POINTS
 #include "trace.h"
 #include "coproc.h"
 
···
 }
 
 int kvm_handle_cp14_load_store(struct kvm_vcpu *vcpu, struct kvm_run *run)
-{
-	kvm_inject_undefined(vcpu);
-	return 1;
-}
-
-int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
 	kvm_inject_undefined(vcpu);
 	return 1;
···
  * must always support PMCCNTR (the cycle counter): we just RAZ/WI for
  * all PM registers, which doesn't crash the guest kernel at least.
  */
-static bool pm_fake(struct kvm_vcpu *vcpu,
+static bool trap_raz_wi(struct kvm_vcpu *vcpu,
 		    const struct coproc_params *p,
 		    const struct coproc_reg *r)
 {
···
 		return read_zero(vcpu, p);
 }
 
-#define access_pmcr pm_fake
-#define access_pmcntenset pm_fake
-#define access_pmcntenclr pm_fake
-#define access_pmovsr pm_fake
-#define access_pmselr pm_fake
-#define access_pmceid0 pm_fake
-#define access_pmceid1 pm_fake
-#define access_pmccntr pm_fake
-#define access_pmxevtyper pm_fake
-#define access_pmxevcntr pm_fake
-#define access_pmuserenr pm_fake
-#define access_pmintenset pm_fake
-#define access_pmintenclr pm_fake
+#define access_pmcr trap_raz_wi
+#define access_pmcntenset trap_raz_wi
+#define access_pmcntenclr trap_raz_wi
+#define access_pmovsr trap_raz_wi
+#define access_pmselr trap_raz_wi
+#define access_pmceid0 trap_raz_wi
+#define access_pmceid1 trap_raz_wi
+#define access_pmccntr trap_raz_wi
+#define access_pmxevtyper trap_raz_wi
+#define access_pmxevcntr trap_raz_wi
+#define access_pmuserenr trap_raz_wi
+#define access_pmintenset trap_raz_wi
+#define access_pmintenclr trap_raz_wi
 
 /* Architected CP15 registers.
  * CRn denotes the primary register number, but is copied to the CRm in the
···
 	return 1;
 }
 
-/**
- * kvm_handle_cp15_64 -- handles a mrrc/mcrr trap on a guest CP15 access
- * @vcpu: The VCPU pointer
- * @run:  The kvm_run struct
- */
-int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static struct coproc_params decode_64bit_hsr(struct kvm_vcpu *vcpu)
 {
 	struct coproc_params params;
 
···
 	params.Rt2 = (kvm_vcpu_get_hsr(vcpu) >> 10) & 0xf;
 	params.CRm = 0;
 
+	return params;
+}
+
+/**
+ * kvm_handle_cp15_64 -- handles a mrrc/mcrr trap on a guest CP15 access
+ * @vcpu: The VCPU pointer
+ * @run:  The kvm_run struct
+ */
+int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	struct coproc_params params = decode_64bit_hsr(vcpu);
+
 	return emulate_cp15(vcpu, &params);
+}
+
+/**
+ * kvm_handle_cp14_64 -- handles a mrrc/mcrr trap on a guest CP14 access
+ * @vcpu: The VCPU pointer
+ * @run:  The kvm_run struct
+ */
+int kvm_handle_cp14_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	struct coproc_params params = decode_64bit_hsr(vcpu);
+
+	/* raz_wi cp14 */
+	trap_raz_wi(vcpu, &params, NULL);
+
+	/* handled */
+	kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
+	return 1;
 }
 
 static void reset_coproc_regs(struct kvm_vcpu *vcpu,
···
 			table[i].reset(vcpu, &table[i]);
 }
 
-/**
- * kvm_handle_cp15_32 -- handles a mrc/mcr trap on a guest CP15 access
- * @vcpu: The VCPU pointer
- * @run:  The kvm_run struct
- */
-int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static struct coproc_params decode_32bit_hsr(struct kvm_vcpu *vcpu)
 {
 	struct coproc_params params;
 
···
 	params.Op2 = (kvm_vcpu_get_hsr(vcpu) >> 17) & 0x7;
 	params.Rt2 = 0;
 
+	return params;
+}
+
+/**
+ * kvm_handle_cp15_32 -- handles a mrc/mcr trap on a guest CP15 access
+ * @vcpu: The VCPU pointer
+ * @run:  The kvm_run struct
+ */
+int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	struct coproc_params params = decode_32bit_hsr(vcpu);
 	return emulate_cp15(vcpu, &params);
+}
+
+/**
+ * kvm_handle_cp14_32 -- handles a mrc/mcr trap on a guest CP14 access
+ * @vcpu: The VCPU pointer
+ * @run:  The kvm_run struct
+ */
+int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	struct coproc_params params = decode_32bit_hsr(vcpu);
+
+	/* raz_wi cp14 */
+	trap_raz_wi(vcpu, &params, NULL);
+
+	/* handled */
+	kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
+	return 1;
 }
 
 /******************************************************************************

arch/arm/kvm/handle_exit.c

···
 	[HSR_EC_WFI]		= kvm_handle_wfx,
 	[HSR_EC_CP15_32]	= kvm_handle_cp15_32,
 	[HSR_EC_CP15_64]	= kvm_handle_cp15_64,
-	[HSR_EC_CP14_MR]	= kvm_handle_cp14_access,
+	[HSR_EC_CP14_MR]	= kvm_handle_cp14_32,
 	[HSR_EC_CP14_LS]	= kvm_handle_cp14_load_store,
-	[HSR_EC_CP14_64]	= kvm_handle_cp14_access,
+	[HSR_EC_CP14_64]	= kvm_handle_cp14_64,
 	[HSR_EC_CP_0_13]	= kvm_handle_cp_0_13_access,
 	[HSR_EC_CP10_ID]	= kvm_handle_cp10_id,
 	[HSR_EC_HVC]		= handle_hvc,

arch/arm/kvm/hyp/Makefile

···
 # Makefile for Kernel-based Virtual Machine module, HYP part
 #
 
+ccflags-y += -fno-stack-protector
+
 KVM=../../../../virt/kvm
 
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o

arch/arm/kvm/hyp/switch.c

···
 	write_sysreg(HSTR_T(15), HSTR);
 	write_sysreg(HCPTR_TTA | HCPTR_TCP(10) | HCPTR_TCP(11), HCPTR);
 	val = read_sysreg(HDCR);
-	write_sysreg(val | HDCR_TPM | HDCR_TPMCR, HDCR);
+	val |= HDCR_TPM | HDCR_TPMCR; /* trap performance monitors */
+	val |= HDCR_TDRA | HDCR_TDOSA | HDCR_TDA; /* trap debug regs */
+	write_sysreg(val, HDCR);
 }
 
 static void __hyp_text __deactivate_traps(struct kvm_vcpu *vcpu)

arch/arm/kvm/trace.h

···
-#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_KVM_H
+#if !defined(_TRACE_ARM_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_ARM_KVM_H
 
 #include <linux/tracepoint.h>
 
···
 		  __entry->vcpu_pc, __entry->r0, __entry->imm)
 );
 
-#endif /* _TRACE_KVM_H */
+#endif /* _TRACE_ARM_KVM_H */
 
 #undef TRACE_INCLUDE_PATH
-#define TRACE_INCLUDE_PATH arch/arm/kvm
+#define TRACE_INCLUDE_PATH .
 #undef TRACE_INCLUDE_FILE
 #define TRACE_INCLUDE_FILE trace
 

arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi

···
 			cpm_crypto: crypto@800000 {
 				compatible = "inside-secure,safexcel-eip197";
 				reg = <0x800000 0x200000>;
-				interrupts = <GIC_SPI 34 (IRQ_TYPE_EDGE_RISING
-				| IRQ_TYPE_LEVEL_HIGH)>,
+				interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,

arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi

···
 			cps_crypto: crypto@800000 {
 				compatible = "inside-secure,safexcel-eip197";
 				reg = <0x800000 0x200000>;
-				interrupts = <GIC_SPI 34 (IRQ_TYPE_EDGE_RISING
-				| IRQ_TYPE_LEVEL_HIGH)>,
+				interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 278 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 279 IRQ_TYPE_LEVEL_HIGH>,
 					     <GIC_SPI 280 IRQ_TYPE_LEVEL_HIGH>,

arch/arm64/include/asm/atomic_ll_sc.h

···
 	"	st" #rel "xr" #sz "\t%w[tmp], %" #w "[new], %[v]\n"	\
 	"	cbnz	%w[tmp], 1b\n"					\
 	"	" #mb "\n"						\
-	"	mov	%" #w "[oldval], %" #w "[old]\n"		\
 	"2:"								\
 	: [tmp] "=&r" (tmp), [oldval] "=&r" (oldval),			\
 	  [v] "+Q" (*(unsigned long *)ptr)				\

arch/arm64/include/asm/cpufeature.h

···
 
 extern DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS);
 extern struct static_key_false cpu_hwcap_keys[ARM64_NCAPS];
+extern struct static_key_false arm64_const_caps_ready;
 
 bool this_cpu_has_cap(unsigned int cap);
 
···
 }
 
 /* System capability check for constant caps */
-static inline bool cpus_have_const_cap(int num)
+static inline bool __cpus_have_const_cap(int num)
 {
 	if (num >= ARM64_NCAPS)
 		return false;
···
 	return test_bit(num, cpu_hwcaps);
 }
 
+static inline bool cpus_have_const_cap(int num)
+{
+	if (static_branch_likely(&arm64_const_caps_ready))
+		return __cpus_have_const_cap(num);
+	else
+		return cpus_have_cap(num);
+}
+
 static inline void cpus_set_cap(unsigned int num)
 {
 	if (num >= ARM64_NCAPS) {
···
 			num, ARM64_NCAPS);
 	} else {
 		__set_bit(num, cpu_hwcaps);
-		static_branch_enable(&cpu_hwcap_keys[num]);
 	}
 }
 

arch/arm64/include/asm/kvm_host.h

···
 
 #include <linux/types.h>
 #include <linux/kvm_types.h>
+#include <asm/cpufeature.h>
 #include <asm/kvm.h>
 #include <asm/kvm_asm.h>
 #include <asm/kvm_mmio.h>
···
 				       unsigned long vector_ptr)
 {
 	/*
-	 * Call initialization code, and switch to the full blown
-	 * HYP code.
+	 * Call initialization code, and switch to the full blown HYP code.
+	 * If the cpucaps haven't been finalized yet, something has gone very
+	 * wrong, and hyp will crash and burn when it uses any
+	 * cpus_have_const_cap() wrapper.
 	 */
+	BUG_ON(!static_branch_likely(&arm64_const_caps_ready));
 	__kvm_call_hyp((void *)pgd_ptr, hyp_stack_ptr, vector_ptr);
 }
 

arch/arm64/kernel/cpufeature.c

···
  */
 void __init enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps)
 {
-	for (; caps->matches; caps++)
-		if (caps->enable && cpus_have_cap(caps->capability))
+	for (; caps->matches; caps++) {
+		unsigned int num = caps->capability;
+
+		if (!cpus_have_cap(num))
+			continue;
+
+		/* Ensure cpus_have_const_cap(num) works */
+		static_branch_enable(&cpu_hwcap_keys[num]);
+
+		if (caps->enable) {
 			/*
 			 * Use stop_machine() as it schedules the work allowing
 			 * us to modify PSTATE, instead of on_each_cpu() which
···
 			 * we return.
 			 */
 			stop_machine(caps->enable, NULL, cpu_online_mask);
+		}
+	}
 }
 
 /*
···
 	enable_cpu_capabilities(arm64_features);
 }
 
+DEFINE_STATIC_KEY_FALSE(arm64_const_caps_ready);
+EXPORT_SYMBOL(arm64_const_caps_ready);
+
+static void __init mark_const_caps_ready(void)
+{
+	static_branch_enable(&arm64_const_caps_ready);
+}
+
 /*
  * Check if the current CPU has a given feature capability.
  * Should be called from non-preemptible context.
···
 	/* Set the CPU feature capabilies */
 	setup_feature_capabilities();
 	enable_errata_workarounds();
+	mark_const_caps_ready();
 	setup_elf_hwcaps(arm64_elf_hwcaps);
 
 	if (system_supports_32bit_el0())

arch/arm64/kernel/perf_event.c

···
 
 	if (attr->exclude_idle)
 		return -EPERM;
-	if (is_kernel_in_hyp_mode() &&
-	    attr->exclude_kernel != attr->exclude_hv)
-		return -EINVAL;
+
+	/*
+	 * If we're running in hyp mode, then we *are* the hypervisor.
+	 * Therefore we ignore exclude_hv in this configuration, since
+	 * there's no hypervisor to sample anyway. This is consistent
+	 * with other architectures (x86 and Power).
+	 */
+	if (is_kernel_in_hyp_mode()) {
+		if (!attr->exclude_kernel)
+			config_base |= ARMV8_PMU_INCLUDE_EL2;
+	} else {
+		if (attr->exclude_kernel)
+			config_base |= ARMV8_PMU_EXCLUDE_EL1;
+		if (!attr->exclude_hv)
+			config_base |= ARMV8_PMU_INCLUDE_EL2;
+	}
 	if (attr->exclude_user)
 		config_base |= ARMV8_PMU_EXCLUDE_EL0;
-	if (!is_kernel_in_hyp_mode() && attr->exclude_kernel)
-		config_base |= ARMV8_PMU_EXCLUDE_EL1;
-	if (!attr->exclude_hv)
-		config_base |= ARMV8_PMU_INCLUDE_EL2;
 
 	/*
 	 * Install the filter into config_base as this is used to

arch/arm64/kvm/hyp/Makefile

···
 # Makefile for Kernel-based Virtual Machine module, HYP part
 #
 
+ccflags-y += -fno-stack-protector
+
 KVM=../../../../virt/kvm
 
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o

arch/arm64/net/bpf_jit_comp.c

···
 	 */
 	off = offsetof(struct bpf_array, ptrs);
 	emit_a64_mov_i64(tmp, off, ctx);
-	emit(A64_LDR64(tmp, r2, tmp), ctx);
-	emit(A64_LDR64(prg, tmp, r3), ctx);
+	emit(A64_ADD(1, tmp, r2, tmp), ctx);
+	emit(A64_LSL(1, prg, r3, 3), ctx);
+	emit(A64_LDR64(prg, tmp, prg), ctx);
 	emit(A64_CBZ(1, prg, jmp_offset), ctx);
 
 	/* goto *(prog->bpf_func + prologue_size); */

arch/powerpc/include/asm/module.h

···
 #include <asm-generic/module.h>
 
 
+#ifdef CC_USING_MPROFILE_KERNEL
+#define MODULE_ARCH_VERMAGIC	"mprofile-kernel"
+#endif
+
 #ifndef __powerpc64__
 /*
  * Thanks to Paul M for explaining this.

arch/powerpc/include/asm/page.h

···
 #define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)
 #define virt_to_page(kaddr)	pfn_to_page(virt_to_pfn(kaddr))
 #define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
+
+#ifdef CONFIG_PPC_BOOK3S_64
+/*
+ * On hash the vmalloc and other regions alias to the kernel region when passed
+ * through __pa(), which virt_to_pfn() uses. That means virt_addr_valid() can
+ * return true for some vmalloc addresses, which is incorrect. So explicitly
+ * check that the address is in the kernel region.
+ */
+#define virt_addr_valid(kaddr) (REGION_ID(kaddr) == KERNEL_REGION_ID && \
+				pfn_valid(virt_to_pfn(kaddr)))
+#else
 #define virt_addr_valid(kaddr)	pfn_valid(virt_to_pfn(kaddr))
+#endif
 
 /*
  * On Book-E parts we need __va to parse the device tree and we can't

arch/powerpc/kernel/idle_book3s.S

···
 	 * which needs to be restored from the stack.
 	 */
 	li	r3, 1
-	stb	r0,PACA_NAPSTATELOST(r13)
+	stb	r3,PACA_NAPSTATELOST(r13)
 	blr
 
 /*

arch/powerpc/kernel/kprobes.c

···
 			save_previous_kprobe(kcb);
 			set_current_kprobe(p, regs, kcb);
 			kprobes_inc_nmissed_count(p);
-			prepare_singlestep(p, regs);
 			kcb->kprobe_status = KPROBE_REENTER;
 			if (p->ainsn.boostable >= 0) {
 				ret = try_to_emulate(p, regs);
 
 				if (ret > 0) {
 					restore_previous_kprobe(kcb);
+					preempt_enable_no_resched();
 					return 1;
 				}
 			}
+			prepare_singlestep(p, regs);
 			return 1;
 		} else {
 			if (*addr != BREAKPOINT_INSTRUCTION) {

arch/powerpc/kernel/process.c

···
 	if (!MSR_TM_SUSPENDED(mfmsr()))
 		return;
 
+	/*
+	 * If we are in a transaction and FP is off then we can't have
+	 * used FP inside that transaction. Hence the checkpointed
+	 * state is the same as the live state. We need to copy the
+	 * live state to the checkpointed state so that when the
+	 * transaction is restored, the checkpointed state is correct
+	 * and the aborted transaction sees the correct state. We use
+	 * ckpt_regs.msr here as that's what tm_reclaim will use to
+	 * determine if it's going to write the checkpointed state or
+	 * not. So either this will write the checkpointed registers,
+	 * or reclaim will. Similarly for VMX.
+	 */
+	if ((thr->ckpt_regs.msr & MSR_FP) == 0)
+		memcpy(&thr->ckfp_state, &thr->fp_state,
+		       sizeof(struct thread_fp_state));
+	if ((thr->ckpt_regs.msr & MSR_VEC) == 0)
+		memcpy(&thr->ckvr_state, &thr->vr_state,
+		       sizeof(struct thread_vr_state));
+
 	giveup_all(container_of(thr, struct task_struct, thread));
 
 	tm_reclaim(thr, thr->ckpt_regs.msr, cause);

arch/powerpc/kvm/Kconfig

···
 	select KVM_BOOK3S_64_HANDLER
 	select KVM
 	select KVM_BOOK3S_PR_POSSIBLE if !KVM_BOOK3S_HV_POSSIBLE
-	select SPAPR_TCE_IOMMU if IOMMU_SUPPORT
+	select SPAPR_TCE_IOMMU if IOMMU_SUPPORT && (PPC_SERIES || PPC_POWERNV)
 	---help---
 	  Support running unmodified book3s_64 and book3s_32 guest kernels
 	  in virtual machines on book3s_64 host processors.

arch/powerpc/kvm/Makefile

···
 	e500_emulate.o
 kvm-objs-$(CONFIG_KVM_E500MC) := $(kvm-e500mc-objs)
 
-kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) := \
+kvm-book3s_64-builtin-objs-$(CONFIG_SPAPR_TCE_IOMMU) := \
 	book3s_64_vio_hv.o
 
 kvm-pr-y := \
···
 	book3s_xics.o
 
 kvm-book3s_64-objs-$(CONFIG_KVM_XIVE) += book3s_xive.o
+kvm-book3s_64-objs-$(CONFIG_SPAPR_TCE_IOMMU) += book3s_64_vio.o
 
 kvm-book3s_64-module-objs := \
 	$(common-objs-y) \
 	book3s.o \
-	book3s_64_vio.o \
 	book3s_rtas.o \
 	$(kvm-book3s_64-objs-y)
 

arch/powerpc/kvm/book3s_64_vio_hv.c

···
 	/* udbg_printf("H_PUT_TCE(): liobn=0x%lx ioba=0x%lx, tce=0x%lx\n", */
 	/* 	    liobn, ioba, tce); */
 
+	/* For radix, we might be in virtual mode, so punt */
+	if (kvm_is_radix(vcpu->kvm))
+		return H_TOO_HARD;
+
 	stt = kvmppc_find_table(vcpu->kvm, liobn);
 	if (!stt)
 		return H_TOO_HARD;
···
 	unsigned long *rmap = NULL;
 	bool prereg = false;
 	struct kvmppc_spapr_tce_iommu_table *stit;
+
+	/* For radix, we might be in virtual mode, so punt */
+	if (kvm_is_radix(vcpu->kvm))
+		return H_TOO_HARD;
 
 	stt = kvmppc_find_table(vcpu->kvm, liobn);
 	if (!stt)
···
 	long i, ret;
 	struct kvmppc_spapr_tce_iommu_table *stit;
 
+	/* For radix, we might be in virtual mode, so punt */
+	if (kvm_is_radix(vcpu->kvm))
+		return H_TOO_HARD;
+
 	stt = kvmppc_find_table(vcpu->kvm, liobn);
 	if (!stt)
 		return H_TOO_HARD;
···
 	return H_SUCCESS;
 }
 
+/* This can be called in either virtual mode or real mode */
 long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
 		      unsigned long ioba)
 {

arch/powerpc/kvm/book3s_hv_builtin.c

···
 
 long kvmppc_h_random(struct kvm_vcpu *vcpu)
 {
-	if (powernv_get_random_real_mode(&vcpu->arch.gpr[4]))
+	int r;
+
+	/* Only need to do the expensive mfmsr() on radix */
+	if (kvm_is_radix(vcpu->kvm) && (mfmsr() & MSR_IR))
+		r = powernv_get_random_long(&vcpu->arch.gpr[4]);
+	else
+		r = powernv_get_random_real_mode(&vcpu->arch.gpr[4]);
+	if (r)
 		return H_SUCCESS;
 
 	return H_HARDWARE;

arch/powerpc/kvm/book3s_pr_papr.c

···
 	pteg_addr = get_pteg_addr(vcpu, pte_index);
 
 	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
-	copy_from_user(pteg, (void __user *)pteg_addr, sizeof(pteg));
+	ret = H_FUNCTION;
+	if (copy_from_user(pteg, (void __user *)pteg_addr, sizeof(pteg)))
+		goto done;
 	hpte = pteg;
 
 	ret = H_PTEG_FULL;
···
 	hpte[0] = cpu_to_be64(kvmppc_get_gpr(vcpu, 6));
 	hpte[1] = cpu_to_be64(kvmppc_get_gpr(vcpu, 7));
 	pteg_addr += i * HPTE_SIZE;
-	copy_to_user((void __user *)pteg_addr, hpte, HPTE_SIZE);
+	ret = H_FUNCTION;
+	if (copy_to_user((void __user *)pteg_addr, hpte, HPTE_SIZE))
+		goto done;
 	kvmppc_set_gpr(vcpu, 4, pte_index | i);
 	ret = H_SUCCESS;
 
···
 
 	pteg = get_pteg_addr(vcpu, pte_index);
 	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
-	copy_from_user(pte, (void __user *)pteg, sizeof(pte));
+	ret = H_FUNCTION;
+	if (copy_from_user(pte, (void __user *)pteg, sizeof(pte)))
+		goto done;
 	pte[0] = be64_to_cpu((__force __be64)pte[0]);
 	pte[1] = be64_to_cpu((__force __be64)pte[1]);
 
···
 	    ((flags & H_ANDCOND) && (pte[0] & avpn) != 0))
 		goto done;
 
-	copy_to_user((void __user *)pteg, &v, sizeof(v));
+	ret = H_FUNCTION;
+	if (copy_to_user((void __user *)pteg, &v, sizeof(v)))
+		goto done;
 
 	rb = compute_tlbie_rb(pte[0], pte[1], pte_index);
 	vcpu->arch.mmu.tlbie(vcpu, rb, rb & 1 ? true : false);
···
 		}
 
 		pteg = get_pteg_addr(vcpu, tsh & H_BULK_REMOVE_PTEX);
-		copy_from_user(pte, (void __user *)pteg, sizeof(pte));
+		if (copy_from_user(pte, (void __user *)pteg, sizeof(pte))) {
+			ret = H_FUNCTION;
+			break;
+		}
 		pte[0] = be64_to_cpu((__force __be64)pte[0]);
 		pte[1] = be64_to_cpu((__force __be64)pte[1]);
 
···
 			tsh |= H_BULK_REMOVE_NOT_FOUND;
 		} else {
 			/* Splat the pteg in (userland) hpt */
-			copy_to_user((void __user *)pteg, &v, sizeof(v));
+			if (copy_to_user((void __user *)pteg, &v, sizeof(v))) {
+				ret = H_FUNCTION;
+				break;
+			}
 
 			rb = compute_tlbie_rb(pte[0], pte[1],
 					      tsh & H_BULK_REMOVE_PTEX);
···
 
 	pteg = get_pteg_addr(vcpu, pte_index);
 	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
-	copy_from_user(pte, (void __user *)pteg, sizeof(pte));
+	ret = H_FUNCTION;
+	if (copy_from_user(pte, (void __user *)pteg, sizeof(pte)))
+		goto done;
 	pte[0] = be64_to_cpu((__force __be64)pte[0]);
 	pte[1] = be64_to_cpu((__force __be64)pte[1]);
 
···
 	vcpu->arch.mmu.tlbie(vcpu, rb, rb & 1 ? true : false);
 	pte[0] = (__force u64)cpu_to_be64(pte[0]);
 	pte[1] = (__force u64)cpu_to_be64(pte[1]);
-	copy_to_user((void __user *)pteg, pte, sizeof(pte));
+	ret = H_FUNCTION;
+	if (copy_to_user((void __user *)pteg, pte, sizeof(pte)))
+		goto done;
 	ret = H_SUCCESS;
 
  done:
 	mutex_unlock(&vcpu->kvm->arch.hpt_mutex);
 	kvmppc_set_gpr(vcpu, 3, ret);
 
-	return EMULATE_DONE;
-}
-
-static int kvmppc_h_pr_put_tce(struct kvm_vcpu *vcpu)
-{
-	unsigned long liobn = kvmppc_get_gpr(vcpu, 4);
-	unsigned long ioba = kvmppc_get_gpr(vcpu, 5);
-	unsigned long tce = kvmppc_get_gpr(vcpu, 6);
-	long rc;
-
-	rc = kvmppc_h_put_tce(vcpu, liobn, ioba, tce);
-	if (rc == H_TOO_HARD)
-		return EMULATE_FAIL;
-	kvmppc_set_gpr(vcpu, 3, rc);
 	return EMULATE_DONE;
 }
 
···
 	long rc;
 
 	rc = kvmppc_h_logical_ci_store(vcpu);
+	if (rc == H_TOO_HARD)
+		return EMULATE_FAIL;
+	kvmppc_set_gpr(vcpu, 3, rc);
+	return EMULATE_DONE;
+}
+
+#ifdef CONFIG_SPAPR_TCE_IOMMU
+static int kvmppc_h_pr_put_tce(struct kvm_vcpu *vcpu)
+{
+	unsigned long liobn = kvmppc_get_gpr(vcpu, 4);
+	unsigned long ioba = kvmppc_get_gpr(vcpu, 5);
+	unsigned long tce = kvmppc_get_gpr(vcpu, 6);
+	long rc;
+
+	rc = kvmppc_h_put_tce(vcpu, liobn, ioba, tce);
 	if (rc == H_TOO_HARD)
 		return EMULATE_FAIL;
 	kvmppc_set_gpr(vcpu, 3, rc);
···
 	kvmppc_set_gpr(vcpu, 3, rc);
 	return EMULATE_DONE;
 }
+
+#else /* CONFIG_SPAPR_TCE_IOMMU */
+static int kvmppc_h_pr_put_tce(struct kvm_vcpu *vcpu)
+{
+	return EMULATE_FAIL;
+}
+
+static int kvmppc_h_pr_put_tce_indirect(struct kvm_vcpu *vcpu)
+{
+	return EMULATE_FAIL;
+}
+
+static int kvmppc_h_pr_stuff_tce(struct kvm_vcpu *vcpu)
+{
+	return EMULATE_FAIL;
+}
+#endif /* CONFIG_SPAPR_TCE_IOMMU */
 
 static int kvmppc_h_pr_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
 {

arch/powerpc/kvm/powerpc.c

···
 		r = kvm_vm_ioctl_enable_cap(kvm, &cap);
 		break;
 	}
-#ifdef CONFIG_PPC_BOOK3S_64
+#ifdef CONFIG_SPAPR_TCE_IOMMU
 	case KVM_CREATE_SPAPR_TCE_64: {
 		struct kvm_create_spapr_tce_64 create_tce_64;
 
···
 		r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce_64);
 		goto out;
 	}
+#endif
+#ifdef CONFIG_PPC_BOOK3S_64
 	case KVM_PPC_GET_SMMU_INFO: {
 		struct kvm_ppc_smmu_info info;
 		struct kvm *kvm = filp->private_data;

arch/powerpc/mm/dump_linuxpagetables.c

···
  */
 #include <linux/debugfs.h>
 #include <linux/fs.h>
+#include <linux/hugetlb.h>
 #include <linux/io.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
···
 
 	for (i = 0; i < PTRS_PER_PMD; i++, pmd++) {
 		addr = start + i * PMD_SIZE;
-		if (!pmd_none(*pmd))
+		if (!pmd_none(*pmd) && !pmd_huge(*pmd))
 			/* pmd exists */
 			walk_pte(st, pmd, addr);
 		else
···
 
 	for (i = 0; i < PTRS_PER_PUD; i++, pud++) {
 		addr = start + i * PUD_SIZE;
-		if (!pud_none(*pud))
+		if (!pud_none(*pud) && !pud_huge(*pud))
 			/* pud exists */
 			walk_pmd(st, pud, addr);
 		else
···
 	 */
 	for (i = 0; i < PTRS_PER_PGD; i++, pgd++) {
 		addr = KERN_VIRT_START + i * PGDIR_SIZE;
-		if (!pgd_none(*pgd))
+		if (!pgd_none(*pgd) && !pgd_huge(*pgd))
 			/* pgd exists */
 			walk_pud(st, pgd, addr);
 		else

arch/s390/include/asm/debug.h

···
 #include <linux/spinlock.h>
 #include <linux/kernel.h>
 #include <linux/time.h>
+#include <linux/refcount.h>
 #include <uapi/asm/debug.h>
 
 #define DEBUG_MAX_LEVEL            6  /* debug levels range from 0 to 6 */
···
 typedef struct debug_info {	
 	struct debug_info* next;
 	struct debug_info* prev;
-	atomic_t ref_count;
+	refcount_t ref_count;
 	spinlock_t lock;			
 	int level;
 	int nr_areas;

arch/s390/include/asm/dis.h

···
 	return ((((int) code + 64) >> 7) + 1) << 1;
 }
 
+struct pt_regs;
+
 void show_code(struct pt_regs *regs);
 void print_fn_code(unsigned char *code, unsigned long len);
 int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len);

arch/s390/include/asm/kprobes.h

···
  * 2005-Dec	Used as a template for s390 by Mike Grundy
  *		<[e-mail]>
  */
+#include <linux/types.h>
 #include <asm-generic/kprobes.h>
 
 #define BREAKPOINT_INSTRUCTION	0x0002
 
+#define FIXUP_PSW_NORMAL	0x08
+#define FIXUP_BRANCH_NOT_TAKEN	0x04
+#define FIXUP_RETURN_REGISTER	0x02
+#define FIXUP_NOT_REQUIRED	0x01
+
+int probe_is_prohibited_opcode(u16 *insn);
+int probe_get_fixup_type(u16 *insn);
+int probe_is_insn_relative_long(u16 *insn);
+
 #ifdef CONFIG_KPROBES
-#include <linux/types.h>
 #include <linux/ptrace.h>
 #include <linux/percpu.h>
 #include <linux/sched/task_stack.h>
···
 #define kretprobe_blacklist_size 0
 
 #define KPROBE_SWAP_INST	0x10
-
-#define FIXUP_PSW_NORMAL	0x08
-#define FIXUP_BRANCH_NOT_TAKEN	0x04
-#define FIXUP_RETURN_REGISTER	0x02
-#define FIXUP_NOT_REQUIRED	0x01
 
 /* Architecture specific copy of original instruction */
 struct arch_specific_insn {
···
 int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 int kprobe_exceptions_notify(struct notifier_block *self,
 	unsigned long val, void *data);
-
-int probe_is_prohibited_opcode(u16 *insn);
-int probe_get_fixup_type(u16 *insn);
-int probe_is_insn_relative_long(u16 *insn);
 
 #define flush_insn_slot(p)	do { } while (0)
 

arch/s390/include/asm/sysinfo.h

···
  * Returns the maximum nesting level supported by the cpu topology code.
  * The current maximum level is 4 which is the drawer level.
  */
-static inline int topology_mnest_limit(void)
+static inline unsigned char topology_mnest_limit(void)
 {
 	return min(topology_max_mnest, 4);
 }

arch/s390/kernel/debug.c

···
 	memset(rc->views, 0, DEBUG_MAX_VIEWS * sizeof(struct debug_view *));
 	memset(rc->debugfs_entries, 0 ,DEBUG_MAX_VIEWS *
 		sizeof(struct dentry*));
-	atomic_set(&(rc->ref_count), 0);
+	refcount_set(&(rc->ref_count), 0);
 
 	return rc;
 
···
         debug_area_last = rc;
         rc->next = NULL;
 
-	debug_info_get(rc);
+	refcount_set(&rc->ref_count, 1);
 out:
 	return rc;
 }
···
 debug_info_get(debug_info_t * db_info)
 {
 	if (db_info)
-		atomic_inc(&db_info->ref_count);
+		refcount_inc(&db_info->ref_count);
 }
 
 /*
···
 
 	if (!db_info)
 		return;
-	if (atomic_dec_and_test(&db_info->ref_count)) {
+	if (refcount_dec_and_test(&db_info->ref_count)) {
 		for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
 			if (!db_info->views[i])
 				continue;

arch/s390/kernel/entry.S

···
 	lg	%r14,__LC_VDSO_PER_CPU
 	lmg	%r0,%r10,__PT_R0(%r11)
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r11)
+.Lsysc_exit_timer:
 	stpt	__LC_EXIT_TIMER
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 	lmg	%r11,%r15,__PT_R11(%r11)
···
 	lg	%r14,__LC_VDSO_PER_CPU
 	lmg	%r0,%r10,__PT_R0(%r11)
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r11)
+.Lio_exit_timer:
 	stpt	__LC_EXIT_TIMER
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 	lmg	%r11,%r15,__PT_R11(%r11)
···
 	br	%r14
 
 .Lcleanup_sysc_restore:
+	# check if stpt has been executed
 	clg	%r9,BASED(.Lcleanup_sysc_restore_insn)
+	jh	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
+	cghi	%r11,__LC_SAVE_AREA_ASYNC
 	je	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
+0:	clg	%r9,BASED(.Lcleanup_sysc_restore_insn+8)
+	je	1f
 	lg	%r9,24(%r11)		# get saved pointer to pt_regs
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
 	mvc	0(64,%r11),__PT_R8(%r9)
 	lmg	%r0,%r7,__PT_R0(%r9)
-0:	lmg	%r8,%r9,__LC_RETURN_PSW
+1:	lmg	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 .Lcleanup_sysc_restore_insn:
+	.quad	.Lsysc_exit_timer
 	.quad	.Lsysc_done - 4
 
 .Lcleanup_io_tif:
···
 	br	%r14
 
 .Lcleanup_io_restore:
+	# check if stpt has been executed
 	clg	%r9,BASED(.Lcleanup_io_restore_insn)
-	je	0f
+	jh	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
+0:	clg	%r9,BASED(.Lcleanup_io_restore_insn+8)
+	je	1f
 	lg	%r9,24(%r11)		# get saved r11 pointer to pt_regs
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
 	mvc	0(64,%r11),__PT_R8(%r9)
 	lmg	%r0,%r7,__PT_R0(%r9)
-0:	lmg	%r8,%r9,__LC_RETURN_PSW
+1:	lmg	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 .Lcleanup_io_restore_insn:
+	.quad	.Lio_exit_timer
 	.quad	.Lio_done - 4
 
 .Lcleanup_idle:

arch/s390/kernel/ftrace.c

···
 	return 0;
 }
 
+#ifdef CONFIG_MODULES
+
 static int __init ftrace_plt_init(void)
 {
 	unsigned int *ip;
···
 	return 0;
 }
 device_initcall(ftrace_plt_init);
+
+#endif /* CONFIG_MODULES */
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 /*

arch/s390/kernel/vmlinux.lds.S

···
 {
 	. = 0x00000000;
 	.text : {
-	_text = .;		/* Text and read-only data */
+		/* Text and read-only data */
 		HEAD_TEXT
+		/*
+		 * E.g. perf doesn't like symbols starting at address zero,
+		 * therefore skip the initial PSW and channel program located
+		 * at address zero and let _text start at 0x200.
+		 */
+	_text = 0x200;
 		TEXT_TEXT
 		SCHED_TEXT
 		CPUIDLE_TEXT

arch/s390/lib/probes.c

···
  *    Copyright IBM Corp. 2014
  */
 
+#include <linux/errno.h>
 #include <asm/kprobes.h>
 #include <asm/dis.h>
 

arch/s390/lib/uaccess.c

···
 		return 0;
 	done = 0;
 	do {
-		offset = (size_t)src & ~PAGE_MASK;
-		len = min(size - done, PAGE_SIZE - offset);
+		offset = (size_t)src & (L1_CACHE_BYTES - 1);
+		len = min(size - done, L1_CACHE_BYTES - offset);
 		if (copy_from_user(dst, src, len))
 			return -EFAULT;
 		len_str = strnlen(dst, len);

arch/sparc/include/asm/hugetlb.h

···
 static inline int prepare_hugepage_range(struct file *file,
 			unsigned long addr, unsigned long len)
 {
-	if (len & ~HPAGE_MASK)
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
 		return -EINVAL;
-	if (addr & ~HPAGE_MASK)
+	if (addr & ~huge_page_mask(h))
 		return -EINVAL;
 	return 0;
 }

arch/sparc/include/asm/pgtable_32.h

···
  * ZERO_PAGE is a global shared page that is always zero: used
  * for zero-mapped memory areas etc..
  */
-extern unsigned long empty_zero_page;
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 
-#define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
 /*
  * In general all page table modifications should use the V8 atomic

arch/sparc/include/asm/setup.h

···
  */
 extern unsigned char boot_cpu_id;
 
-extern unsigned long empty_zero_page;
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 
 extern int serial_console;
 static inline int con_is_present(void)

arch/sparc/kernel/ftrace.c

···
 	if (unlikely(atomic_read(&current->tracing_graph_pause)))
 		return parent + 8UL;
 
+	trace.func = self_addr;
+	trace.depth = current->curr_ret_stack + 1;
+
+	/* Only trace if the calling function expects to */
+	if (!ftrace_graph_entry(&trace))
+		return parent + 8UL;
+
 	if (ftrace_push_return_trace(parent, self_addr, &trace.depth,
 				     frame_pointer, NULL) == -EBUSY)
 		return parent + 8UL;
-
-	trace.func = self_addr;
-
-	/* Only trace if the calling function expects to */
-	if (!ftrace_graph_entry(&trace)) {
-		current->curr_ret_stack--;
-		return parent + 8UL;
-	}
 
 	return return_hooker;
 }

arch/sparc/mm/init_32.c

···
 
 
 	/* Saves us work later. */
-	memset((void *)&empty_zero_page, 0, PAGE_SIZE);
+	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 
 	i = last_valid_pfn >> ((20 - PAGE_SHIFT) + 5);
 	i += 1;

arch/x86/include/asm/kvm_host.h

···
 #define KVM_PRIVATE_MEM_SLOTS 3
 #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
 
-#define KVM_HALT_POLL_NS_DEFAULT 400000
+#define KVM_HALT_POLL_NS_DEFAULT 200000
 
 #define KVM_IRQCHIP_NUM_PINS  KVM_IOAPIC_NUM_PINS
 

arch/x86/include/asm/uaccess.h

···
 #define __get_user_asm_u64(x, ptr, retval, errret)			\
 ({									\
 	__typeof__(ptr) __ptr = (ptr);					\
-	asm volatile(ASM_STAC "\n"					\
+	asm volatile("\n"					\
 		     "1:	movl %2,%%eax\n"			\
 		     "2:	movl %3,%%edx\n"			\
-		     "3: " ASM_CLAC "\n"				\
+		     "3:\n"				\
 		     ".section .fixup,\"ax\"\n"				\
 		     "4:	mov %4,%0\n"				\
 		     "	xorl %%eax,%%eax\n"				\
···
 		     ".previous\n"					\
 		     _ASM_EXTABLE(1b, 4b)				\
 		     _ASM_EXTABLE(2b, 4b)				\
-		     : "=r" (retval), "=A"(x)				\
+		     : "=r" (retval), "=&A"(x)				\
 		     : "m" (__m(__ptr)), "m" __m(((u32 *)(__ptr)) + 1),	\
 		       "i" (errret), "0" (retval));			\
 })
···
 #define unsafe_put_user(x, ptr, err_label)					\
 do {										\
 	int __pu_err;								\
-	__put_user_size((x), (ptr), sizeof(*(ptr)), __pu_err, -EFAULT);		\
+	__typeof__(*(ptr)) __pu_val = (x);					\
+	__put_user_size(__pu_val, (ptr), sizeof(*(ptr)), __pu_err, -EFAULT);	\
 	if (unlikely(__pu_err)) goto err_label;					\
 } while (0)
 
 #define unsafe_get_user(x, ptr, err_label)					\
 do {										\
 	int __gu_err;								\
-	unsigned long __gu_val;							\
+	__inttype(*(ptr)) __gu_val;						\
 	__get_user_size(__gu_val, (ptr), sizeof(*(ptr)), __gu_err, -EFAULT);	\
 	(x) = (__force __typeof__(*(ptr)))__gu_val;				\
 	if (unlikely(__gu_err)) goto err_label;					\

arch/x86/kernel/fpu/init.c

···
  * Boot time FPU feature detection code:
  */
 unsigned int mxcsr_feature_mask __read_mostly = 0xffffffffu;
+EXPORT_SYMBOL_GPL(mxcsr_feature_mask);
 
 static void __init fpu__init_system_mxcsr(void)
 {

arch/x86/kvm/emulate.c

···
 
 static int check_svme(struct x86_emulate_ctxt *ctxt)
 {
-	u64 efer;
+	u64 efer = 0;
 
 	ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
 

arch/x86/kvm/paging_tmpl.h

···
 	pt_element_t pte;
 	pt_element_t __user *uninitialized_var(ptep_user);
 	gfn_t table_gfn;
-	unsigned index, pt_access, pte_access, accessed_dirty, pte_pkey;
+	u64 pt_access, pte_access;
+	unsigned index, accessed_dirty, pte_pkey;
 	unsigned nested_access;
 	gpa_t pte_gpa;
 	bool have_ad;
 	int offset;
+	u64 walk_nx_mask = 0;
 	const int write_fault = access & PFERR_WRITE_MASK;
 	const int user_fault  = access & PFERR_USER_MASK;
 	const int fetch_fault = access & PFERR_FETCH_MASK;
···
 	have_ad       = PT_HAVE_ACCESSED_DIRTY(mmu);
 
 #if PTTYPE == 64
+	walk_nx_mask = 1ULL << PT64_NX_SHIFT;
 	if (walker->level == PT32E_ROOT_LEVEL) {
 		pte = mmu->get_pdptr(vcpu, (addr >> 30) & 3);
 		trace_kvm_mmu_paging_element(pte, walker->level);
···
 	walker->max_level = walker->level;
 	ASSERT(!(is_long_mode(vcpu) && !is_pae(vcpu)));
 
-	accessed_dirty = have_ad ? PT_GUEST_ACCESSED_MASK : 0;
-
 	/*
 	 * FIXME: on Intel processors, loads of the PDPTE registers for PAE paging
 	 * by the MOV to CR instruction are treated as reads and do not cause the
···
 	 */
 	nested_access = (have_ad ? PFERR_WRITE_MASK : 0) | PFERR_USER_MASK;
 
-	pt_access = pte_access = ACC_ALL;
+	pte_access = ~0;
 	++walker->level;
 
 	do {
 		gfn_t real_gfn;
 		unsigned long host_addr;
 
-		pt_access &= pte_access;
+		pt_access = pte_access;
 		--walker->level;
 
 		index = PT_INDEX(addr, walker->level);
···
 
 		trace_kvm_mmu_paging_element(pte, walker->level);
 
+		/*
+		 * Inverting the NX it lets us AND it like other
+		 * permission bits.
+		 */
+		pte_access = pt_access & (pte ^ walk_nx_mask);
+
 		if (unlikely(!FNAME(is_present_gpte)(pte)))
 			goto error;
 
···
 			goto error;
 		}
 
-		accessed_dirty &= pte;
-		pte_access = pt_access & FNAME(gpte_access)(vcpu, pte);
-
 		walker->ptes[walker->level - 1] = pte;
 	} while (!is_last_gpte(mmu, walker->level, pte));
 
 	pte_pkey = FNAME(gpte_pkeys)(vcpu, pte);
-	errcode = permission_fault(vcpu, mmu, pte_access, pte_pkey, access);
+	accessed_dirty = have_ad ? pte_access & PT_GUEST_ACCESSED_MASK : 0;
+
+	/* Convert to ACC_*_MASK flags for struct guest_walker.  */
+	walker->pt_access = FNAME(gpte_access)(vcpu, pt_access ^ walk_nx_mask);
+	walker->pte_access = FNAME(gpte_access)(vcpu, pte_access ^ walk_nx_mask);
+	errcode = permission_fault(vcpu, mmu, walker->pte_access, pte_pkey, access);
 	if (unlikely(errcode))
 		goto error;
 
···
 	walker->gfn = real_gpa >> PAGE_SHIFT;
 
 	if (!write_fault)
-		FNAME(protect_clean_gpte)(mmu, &pte_access, pte);
+		FNAME(protect_clean_gpte)(mmu, &walker->pte_access, pte);
 	else
 		/*
 		 * On a write fault, fold the dirty bit into accessed_dirty.
···
 			goto retry_walk;
 	}
 
-	walker->pt_access = pt_access;
-	walker->pte_access = pte_access;
 	pgprintk("%s: pte %llx pte_access %x pt_access %x\n",
-		 __func__, (u64)pte, pte_access, pt_access);
+		 __func__, (u64)pte, walker->pte_access, walker->pt_access);
 	return 1;
 
 error:
···
 	 */
 	if (!(errcode & PFERR_RSVD_MASK)) {
 		vcpu->arch.exit_qualification &= 0x187;
-		vcpu->arch.exit_qualification |= ((pt_access & pte) & 0x7) << 3;
+		vcpu->arch.exit_qualification |= (pte_access & 0x7) << 3;
 	}
 #endif
 	walker->fault.address = addr;

arch/x86/kvm/pmu_intel.c

···
 			((u64)1 << edx.split.bit_width_fixed) - 1;
 	}
 
-	pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) |
+	pmu->global_ctrl = ((1ull << pmu->nr_arch_gp_counters) - 1) |
 		(((1ull << pmu->nr_arch_fixed_counters) - 1) << INTEL_PMC_IDX_FIXED);
 	pmu->global_ctrl_mask = ~pmu->global_ctrl;
 

arch/x86/kvm/svm.c

···
 
 }
 
-static u64 *avic_get_physical_id_entry(struct kvm_vcpu *vcpu, int index)
+static u64 *avic_get_physical_id_entry(struct kvm_vcpu *vcpu,
+				       unsigned int index)
 {
 	u64 *avic_physical_id_table;
 	struct kvm_arch *vm_data = &vcpu->kvm->arch;

arch/x86/kvm/vmx.c

···
 		enable_ept_ad_bits = 0;
 	}
 
-	if (!cpu_has_vmx_ept_ad_bits())
+	if (!cpu_has_vmx_ept_ad_bits() || !enable_ept)
 		enable_ept_ad_bits = 0;
 
 	if (!cpu_has_vmx_unrestricted_guest())
···
 		if (!nested_cpu_has_pml(vmcs12))
 			return 0;
 
-		if (vmcs12->guest_pml_index > PML_ENTITY_NUM) {
+		if (vmcs12->guest_pml_index >= PML_ENTITY_NUM) {
 			vmx->nested.pml_full = true;
 			return 1;
 		}

arch/x86/kvm/x86.c

···
 {
 	struct kvm_arch *ka = &kvm->arch;
 	struct pvclock_vcpu_time_info hv_clock;
+	u64 ret;
 
 	spin_lock(&ka->pvclock_gtod_sync_lock);
 	if (!ka->use_master_clock) {
···
 	hv_clock.system_time = ka->master_kernel_ns + ka->kvmclock_offset;
 	spin_unlock(&ka->pvclock_gtod_sync_lock);
 
+	/* both __this_cpu_read() and rdtsc() should be on the same cpu */
+	get_cpu();
+
 	kvm_get_time_scale(NSEC_PER_SEC, __this_cpu_read(cpu_tsc_khz) * 1000LL,
 			   &hv_clock.tsc_shift,
 			   &hv_clock.tsc_to_system_mul);
-	return __pvclock_read_cycles(&hv_clock, rdtsc());
+	ret = __pvclock_read_cycles(&hv_clock, rdtsc());
+
+	put_cpu();
+
+	return ret;
 }
 
 static void kvm_setup_pvclock_page(struct kvm_vcpu *v)
···
 	}
 }
 
+#define XSAVE_MXCSR_OFFSET 24
+
 static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
 					struct kvm_xsave *guest_xsave)
 {
 	u64 xstate_bv =
 		*(u64 *)&guest_xsave->region[XSAVE_HDR_OFFSET / sizeof(u32)];
+	u32 mxcsr = *(u32 *)&guest_xsave->region[XSAVE_MXCSR_OFFSET / sizeof(u32)];
 
 	if (boot_cpu_has(X86_FEATURE_XSAVE)) {
 		/*
···
 		 * CPUID leaf 0xD, index 0, EDX:EAX.  This is for compatibility
 		 * with old userspace.
 		 */
-		if (xstate_bv & ~kvm_supported_xcr0())
+		if (xstate_bv & ~kvm_supported_xcr0() ||
+			mxcsr & ~mxcsr_feature_mask)
 			return -EINVAL;
 		load_xsave(vcpu, (u8 *)guest_xsave->region);
 	} else {
-		if (xstate_bv & ~XFEATURE_MASK_FPSSE)
+		if (xstate_bv & ~XFEATURE_MASK_FPSSE ||
+			mxcsr & ~mxcsr_feature_mask)
 			return -EINVAL;
 		memcpy(&vcpu->arch.guest_fpu.state.fxsave,
 			guest_xsave->region, sizeof(struct fxregs_state));
···
 
 static int kernel_pio(struct kvm_vcpu *vcpu, void *pd)
 {
-	/* TODO: String I/O for in kernel device */
-	int r;
+	int r = 0, i;
 
-	if (vcpu->arch.pio.in)
-		r = kvm_io_bus_read(vcpu, KVM_PIO_BUS, vcpu->arch.pio.port,
-				    vcpu->arch.pio.size, pd);
-	else
-		r = kvm_io_bus_write(vcpu, KVM_PIO_BUS,
-				     vcpu->arch.pio.port, vcpu->arch.pio.size,
-				     pd);
+	for (i = 0; i < vcpu->arch.pio.count; i++) {
+		if (vcpu->arch.pio.in)
+			r = kvm_io_bus_read(vcpu, KVM_PIO_BUS, vcpu->arch.pio.port,
+					    vcpu->arch.pio.size, pd);
+		else
+			r = kvm_io_bus_write(vcpu, KVM_PIO_BUS,
+					     vcpu->arch.pio.port, vcpu->arch.pio.size,
+					     pd);
+		if (r)
+			break;
+		pd += vcpu->arch.pio.size;
+	}
 	return r;
 }
 
···
 
 	if (vcpu->arch.pio.count)
 		goto data_avail;
+
+	memset(vcpu->arch.pio_data, 0, size * count);
 
 	ret = emulator_pio_in_out(vcpu, size, port, val, count, true);
 	if (ret) {
···
 
 	if (var.unusable) {
 		memset(desc, 0, sizeof(*desc));
+		if (base3)
+			*base3 = 0;
 		return false;
 	}
 

arch/x86/xen/enlighten_pv.c

···
 	struct xen_extraversion extra;
 	HYPERVISOR_xen_version(XENVER_extraversion, &extra);
 
-	pr_info("Booting paravirtualized kernel %son %s\n",
-		xen_feature(XENFEAT_auto_translated_physmap) ?
-			"with PVH extensions " : "", pv_info.name);
+	pr_info("Booting paravirtualized kernel on %s\n", pv_info.name);
 	printk(KERN_INFO "Xen version: %d.%d%s%s\n",
 	       version >> 16, version & 0xffff, extra.extraversion,
 	       xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : "");
···
 
 void xen_setup_shared_info(void)
 {
-	if (!xen_feature(XENFEAT_auto_translated_physmap)) {
-		set_fixmap(FIX_PARAVIRT_BOOTMAP,
-			   xen_start_info->shared_info);
+	set_fixmap(FIX_PARAVIRT_BOOTMAP, xen_start_info->shared_info);
 
-		HYPERVISOR_shared_info =
-			(struct shared_info *)fix_to_virt(FIX_PARAVIRT_BOOTMAP);
-	} else
-		HYPERVISOR_shared_info =
-			(struct shared_info *)__va(xen_start_info->shared_info);
+	HYPERVISOR_shared_info =
+		(struct shared_info *)fix_to_virt(FIX_PARAVIRT_BOOTMAP);
 
 #ifndef CONFIG_SMP
 	/* In UP this is as good a place as any to set up shared info */

arch/x86/xen/mmu.c

···
 }
 EXPORT_SYMBOL_GPL(arbitrary_virt_to_machine);
 
-void xen_flush_tlb_all(void)
+static void xen_flush_tlb_all(void)
 {
 	struct mmuext_op *op;
 	struct multicall_space mcs;

arch/x86/xen/mmu_pv.c

···
 		pteval_t flags = val & PTE_FLAGS_MASK;
 		unsigned long mfn;
 
-		if (!xen_feature(XENFEAT_auto_translated_physmap))
-			mfn = __pfn_to_mfn(pfn);
-		else
-			mfn = pfn;
+		mfn = __pfn_to_mfn(pfn);
+
 		/*
 		 * If there's no mfn for the pfn, then just create an
 		 * empty non-present pte.  Unfortunately this loses
···
 	/* The limit is the last byte to be touched */
 	limit--;
 	BUG_ON(limit >= FIXADDR_TOP);
-
-	if (xen_feature(XENFEAT_auto_translated_physmap))
-		return 0;
 
 	/*
 	 * 64-bit has a great big hole in the middle of the address
···
 
 static void __init xen_pagetable_p2m_setup(void)
 {
-	if (xen_feature(XENFEAT_auto_translated_physmap))
-		return;
-
 	xen_vmalloc_p2m_tree();
 
 #ifdef CONFIG_X86_64
···
 	xen_build_mfn_list_list();
 
 	/* Remap memory freed due to conflicts with E820 map */
-	if (!xen_feature(XENFEAT_auto_translated_physmap))
-		xen_remap_memory();
+	xen_remap_memory();
 
 	xen_setup_shared_info();
 }
···
 	/* Zap identity mapping */
 	init_level4_pgt[0] = __pgd(0);
 
-	if (!xen_feature(XENFEAT_auto_translated_physmap)) {
-		/* Pre-constructed entries are in pfn, so convert to mfn */
-		/* L4[272] -> level3_ident_pgt
-		 * L4[511] -> level3_kernel_pgt */
-		convert_pfn_mfn(init_level4_pgt);
+	/* Pre-constructed entries are in pfn, so convert to mfn */
+	/* L4[272] -> level3_ident_pgt  */
+	/* L4[511] -> level3_kernel_pgt */
+	convert_pfn_mfn(init_level4_pgt);
 
-		/* L3_i[0] -> level2_ident_pgt */
-		convert_pfn_mfn(level3_ident_pgt);
-		/* L3_k[510] -> level2_kernel_pgt
-		 * L3_k[511] -> level2_fixmap_pgt */
-		convert_pfn_mfn(level3_kernel_pgt);
+	/* L3_i[0] -> level2_ident_pgt */
+	convert_pfn_mfn(level3_ident_pgt);
+	/* L3_k[510] -> level2_kernel_pgt */
+	/* L3_k[511] -> level2_fixmap_pgt */
+	convert_pfn_mfn(level3_kernel_pgt);
 
-		/* L3_k[511][506] -> level1_fixmap_pgt */
-		convert_pfn_mfn(level2_fixmap_pgt);
-	}
+	/* L3_k[511][506] -> level1_fixmap_pgt */
+	convert_pfn_mfn(level2_fixmap_pgt);
+
 	/* We get [511][511] and have Xen's version of level2_kernel_pgt */
 	l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd);
 	l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud);
···
 	if (i && i < pgd_index(__START_KERNEL_map))
 		init_level4_pgt[i] = ((pgd_t *)xen_start_info->pt_base)[i];
 
-	if (!xen_feature(XENFEAT_auto_translated_physmap)) {
-		/* Make pagetable pieces RO */
-		set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
-		set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
-		set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
-		set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
-		set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO);
-		set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
-		set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
-		set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO);
+	/* Make pagetable pieces RO */
+	set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
+	set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
+	set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO);
 
-		/* Pin down new L4 */
-		pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
-				  PFN_DOWN(__pa_symbol(init_level4_pgt)));
+	/* Pin down new L4 */
+	pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
+			  PFN_DOWN(__pa_symbol(init_level4_pgt)));
 
-		/* Unpin Xen-provided one */
-		pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(pgd)));
+	/* Unpin Xen-provided one */
+	pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(pgd)));
 
-		/*
-		 * At this stage there can be no user pgd, and no page
-		 * structure to attach it to, so make sure we just set kernel
-		 * pgd.
-		 */
-		xen_mc_batch();
-		__xen_write_cr3(true, __pa(init_level4_pgt));
-		xen_mc_issue(PARAVIRT_LAZY_CPU);
-	} else
-		native_write_cr3(__pa(init_level4_pgt));
+	/*
+	 * At this stage there can be no user pgd, and no page structure to
+	 * attach it to, so make sure we just set kernel pgd.
+	 */
+	xen_mc_batch();
+	__xen_write_cr3(true, __pa(init_level4_pgt));
+	xen_mc_issue(PARAVIRT_LAZY_CPU);
 
 	/* We can't that easily rip out L3 and L2, as the Xen pagetables are
 	 * set out this way: [L4], [L1], [L2], [L3], [L1], [L1] ...  for
···
 
 static void __init xen_post_allocator_init(void)
 {
-	if (xen_feature(XENFEAT_auto_translated_physmap))
-		return;
-
 	pv_mmu_ops.set_pte = xen_set_pte;
 	pv_mmu_ops.set_pmd = xen_set_pmd;
 	pv_mmu_ops.set_pud = xen_set_pud;
···
 void __init xen_init_mmu_ops(void)
 {
 	x86_init.paging.pagetable_init = xen_pagetable_init;
-
-	if (xen_feature(XENFEAT_auto_translated_physmap))
-		return;
 
 	pv_mmu_ops = xen_mmu_ops;
 
···
 	 * this function are redundant and can be ignored.
 	 */
 
-	if (xen_feature(XENFEAT_auto_translated_physmap))
-		return 0;
-
 	if (unlikely(order > MAX_CONTIG_ORDER))
 		return -ENOMEM;
 
···
 	unsigned long  flags;
 	int success;
 	unsigned long vstart;
-
-	if (xen_feature(XENFEAT_auto_translated_physmap))
-		return;
 
 	if (unlikely(order > MAX_CONTIG_ORDER))
 		return;

drivers/block/drbd/drbd_req.c

···
 }
 
 /* still holds resource->req_lock */
-static int drbd_req_put_completion_ref(struct drbd_request *req, struct bio_and_error *m, int put)
+static void drbd_req_put_completion_ref(struct drbd_request *req, struct bio_and_error *m, int put)
 {
 	struct drbd_device *device = req->device;
 	D_ASSERT(device, m || (req->rq_state & RQ_POSTPONED));
 
+	if (!put)
+		return;
+
 	if (!atomic_sub_and_test(put, &req->completion_ref))
-		return 0;
+		return;
 
 	drbd_req_complete(req, m);
+
+	/* local completion may still come in later,
+	 * we need to keep the req object around. */
+	if (req->rq_state & RQ_LOCAL_ABORTED)
+		return;
 
 	if (req->rq_state & RQ_POSTPONED) {
 		/* don't destroy the req object just yet,
 		 * but queue it for retry */
 		drbd_restart_request(req);
-		return 0;
+		return;
 	}
 
-	return 1;
+	kref_put(&req->kref, drbd_req_destroy);
 }
 
 static void set_if_null_req_next(struct drbd_peer_device *peer_device, struct drbd_request *req)
···
 	if (req->i.waiting)
 		wake_up(&device->misc_wait);
 
-	if (c_put) {
-		if (drbd_req_put_completion_ref(req, m, c_put))
-			kref_put(&req->kref, drbd_req_destroy);
-	} else {
-		kref_put(&req->kref, drbd_req_destroy);
-	}
+	drbd_req_put_completion_ref(req, m, c_put);
+	kref_put(&req->kref, drbd_req_destroy);
 }
 
 static void drbd_report_io_error(struct drbd_device *device, struct drbd_request *req)
···
 	}
 
 out:
-	if (drbd_req_put_completion_ref(req, &m, 1))
-		kref_put(&req->kref, drbd_req_destroy);
+	drbd_req_put_completion_ref(req, &m, 1);
 	spin_unlock_irq(&resource->req_lock);
 
 	/* Even though above is a kref_put(), this is safe.

drivers/block/xen-blkback/xenbus.c

···
 
 	dev_set_drvdata(&dev->dev, NULL);
 
-	if (be->blkif)
+	if (be->blkif) {
 		xen_blkif_disconnect(be->blkif);
 
-	/* Put the reference we set in xen_blkif_alloc(). */
-	xen_blkif_put(be->blkif);
+		/* Put the reference we set in xen_blkif_alloc(). */
+		xen_blkif_put(be->blkif);
+	}
+
 	kfree(be->mode);
 	kfree(be);
 	return 0;

drivers/char/lp.c

···
 	} else if (!strcmp(str, "auto")) {
 		parport_nr[0] = LP_PARPORT_AUTO;
 	} else if (!strcmp(str, "none")) {
-		parport_nr[parport_ptr++] = LP_PARPORT_NONE;
+		if (parport_ptr < LP_NO)
+			parport_nr[parport_ptr++] = LP_PARPORT_NONE;
+		else
+			printk(KERN_INFO "lp: too many ports, %s ignored.\n",
+			       str);
 	} else if (!strcmp(str, "reset")) {
 		reset = 1;
 	}

drivers/char/mem.c

···
 static int mmap_mem(struct file *file, struct vm_area_struct *vma)
 {
 	size_t size = vma->vm_end - vma->vm_start;
+	phys_addr_t offset = (phys_addr_t)vma->vm_pgoff << PAGE_SHIFT;
+
+	/* It's illegal to wrap around the end of the physical address space. */
+	if (offset + (phys_addr_t)size < offset)
+		return -EINVAL;
 
 	if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size))
 		return -EINVAL;

drivers/dax/super.c

···
 }
 EXPORT_SYMBOL_GPL(dax_read_unlock);
 
+#ifdef CONFIG_BLOCK
 int bdev_dax_pgoff(struct block_device *bdev, sector_t sector, size_t size,
 		pgoff_t *pgoff)
 {
···
 	return 0;
 }
 EXPORT_SYMBOL_GPL(__bdev_dax_supported);
+#endif
 
 /**
  * struct dax_device - anchor object for dax services

drivers/edac/amd64_edac.c

···
 
 static void debug_display_dimm_sizes_df(struct amd64_pvt *pvt, u8 ctrl)
 {
-	u32 *dcsb = ctrl ? pvt->csels[1].csbases : pvt->csels[0].csbases;
-	int dimm, size0, size1;
+	int dimm, size0, size1, cs0, cs1;
 
 	edac_printk(KERN_DEBUG, EDAC_MC, "UMC%d chip selects:\n", ctrl);
 
 	for (dimm = 0; dimm < 4; dimm++) {
 		size0 = 0;
+		cs0 = dimm * 2;
 
-		if (dcsb[dimm*2] & DCSB_CS_ENABLE)
-			size0 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, dimm);
+		if (csrow_enabled(cs0, ctrl, pvt))
+			size0 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, cs0);
 
 		size1 = 0;
-		if (dcsb[dimm*2 + 1] & DCSB_CS_ENABLE)
-			size1 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, dimm);
+		cs1 = dimm * 2 + 1;
+
+		if (csrow_enabled(cs1, ctrl, pvt))
+			size1 = pvt->ops->dbam_to_cs(pvt, ctrl, 0, cs1);
 
 		amd64_info(EDAC_MC ": %d: %5dMB %d: %5dMB\n",
-				dimm * 2,     size0,
-				dimm * 2 + 1, size1);
+				cs0,	size0,
+				cs1,	size1);
 	}
 }
 
···
  *	encompasses
  *
  */
-static u32 get_csrow_nr_pages(struct amd64_pvt *pvt, u8 dct, int csrow_nr)
+static u32 get_csrow_nr_pages(struct amd64_pvt *pvt, u8 dct, int csrow_nr_orig)
 {
-	u32 cs_mode, nr_pages;
 	u32 dbam = dct ? pvt->dbam1 : pvt->dbam0;
+	int csrow_nr = csrow_nr_orig;
+	u32 cs_mode, nr_pages;
 
+	if (!pvt->umc)
+		csrow_nr >>= 1;
 
-	/*
-	 * The math on this doesn't look right on the surface because x/2*4 can
-	 * be simplified to x*2 but this expression makes use of the fact that
-	 * it is integral math where 1/2=0. This intermediate value becomes the
-	 * number of bits to shift the DBAM register to extract the proper CSROW
-	 * field.
-	 */
-	cs_mode = DBAM_DIMM(csrow_nr / 2, dbam);
+	cs_mode = DBAM_DIMM(csrow_nr, dbam);
 
-	nr_pages = pvt->ops->dbam_to_cs(pvt, dct, cs_mode, (csrow_nr / 2))
-							   << (20 - PAGE_SHIFT);
+	nr_pages   = pvt->ops->dbam_to_cs(pvt, dct, cs_mode, csrow_nr);
+	nr_pages <<= 20 - PAGE_SHIFT;
 
 	edac_dbg(0, "csrow: %d, channel: %d, DBAM idx: %d\n",
-		    csrow_nr, dct,  cs_mode);
+		    csrow_nr_orig, dct,  cs_mode);
 	edac_dbg(0, "nr_pages/channel: %u\n", nr_pages);
 
 	return nr_pages;

drivers/firmware/efi/efi-pstore.c

···
  * efi_pstore_sysfs_entry_iter
  *
  * @record: pstore record to pass to callback
- * @pos: entry to begin iterating from
  *
  * You MUST call efivar_enter_iter_begin() before this function, and
  * efivar_entry_iter_end() afterwards.
  *
- * It is possible to begin iteration from an arbitrary entry within
- * the list by passing @pos. @pos is updated on return to point to
- * the next entry of the last one passed to efi_pstore_read_func().
- * To begin iterating from the beginning of the list @pos must be %NULL.
  */
-static int efi_pstore_sysfs_entry_iter(struct pstore_record *record,
-				       struct efivar_entry **pos)
+static int efi_pstore_sysfs_entry_iter(struct pstore_record *record)
 {
+	struct efivar_entry **pos = (struct efivar_entry **)&record->psi->data;
 	struct efivar_entry *entry, *n;
 	struct list_head *head = &efivar_sysfs_list;
 	int size = 0;
···
  */
 static ssize_t efi_pstore_read(struct pstore_record *record)
 {
-	struct efivar_entry *entry = (struct efivar_entry *)record->psi->data;
 	ssize_t size;
 
 	record->buf = kzalloc(EFIVARS_DATA_SIZE_MAX, GFP_KERNEL);
···
 		size = -EINTR;
 		goto out;
 	}
-	size = efi_pstore_sysfs_entry_iter(record, &entry);
+	size = efi_pstore_sysfs_entry_iter(record);
 	efivar_entry_iter_end();
 
 out:

drivers/firmware/google/vpd.c

···
 		return VPD_OK;
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
-	info->key = kzalloc(key_len + 1, GFP_KERNEL);
-	if (!info->key)
+	if (!info)
 		return -ENOMEM;
+	info->key = kzalloc(key_len + 1, GFP_KERNEL);
+	if (!info->key) {
+		ret = -ENOMEM;
+		goto free_info;
+	}
 
 	memcpy(info->key, key, key_len);
 
···
 	list_add_tail(&info->list, &sec->attribs);
 
 	ret = sysfs_create_bin_file(sec->kobj, &info->bin_attr);
-	if (ret) {
-		kfree(info->key);
-		return ret;
-	}
+	if (ret)
+		goto free_info_key;
 
 	return 0;
+
+free_info_key:
+	kfree(info->key);
+free_info:
+	kfree(info);
+
+	return ret;
 }
 
 static void vpd_section_attrib_destroy(struct vpd_section *sec)

drivers/gpu/drm/arm/hdlcd_crtc.c

···
  */
 
 #include <drm/drmP.h>
+#include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
···
 static int hdlcd_plane_atomic_check(struct drm_plane *plane,
 				    struct drm_plane_state *state)
 {
-	u32 src_w, src_h;
+	struct drm_rect clip = { 0 };
+	struct drm_crtc_state *crtc_state;
+	u32 src_h = state->src_h >> 16;
 
-	src_w = state->src_w >> 16;
-	src_h = state->src_h >> 16;
-
-	/* we can't do any scaling of the plane source */
-	if ((src_w != state->crtc_w) || (src_h != state->crtc_h))
+	/* only the HDLCD_REG_FB_LINE_COUNT register has a limit */
+	if (src_h >= HDLCD_MAX_YRES) {
+		DRM_DEBUG_KMS("Invalid source width: %d\n", src_h);
 		return -EINVAL;
+	}
 
-	return 0;
+	if (!state->fb || !state->crtc)
+		return 0;
+
+	crtc_state = drm_atomic_get_existing_crtc_state(state->state,
+							state->crtc);
+	if (!crtc_state) {
+		DRM_DEBUG_KMS("Invalid crtc state\n");
+		return -EINVAL;
+	}
+
+	clip.x2 = crtc_state->adjusted_mode.hdisplay;
+	clip.y2 = crtc_state->adjusted_mode.vdisplay;
+
+	return drm_plane_helper_check_state(state, &clip,
+					    DRM_PLANE_HELPER_NO_SCALING,
+					    DRM_PLANE_HELPER_NO_SCALING,
+					    false, true);
 }
 
 static void hdlcd_plane_atomic_update(struct drm_plane *plane,
···
 	struct drm_framebuffer *fb = plane->state->fb;
 	struct hdlcd_drm_private *hdlcd;
 	struct drm_gem_cma_object *gem;
-	u32 src_w, src_h, dest_w, dest_h;
+	u32 src_x, src_y, dest_h;
 	dma_addr_t scanout_start;
 
 	if (!fb)
 		return;
 
-	src_w = plane->state->src_w >> 16;
-	src_h = plane->state->src_h >> 16;
-	dest_w = plane->state->crtc_w;
-	dest_h = plane->state->crtc_h;
+	src_x = plane->state->src.x1 >> 16;
+	src_y = plane->state->src.y1 >> 16;
+	dest_h = drm_rect_height(&plane->state->dst);
 	gem = drm_fb_cma_get_gem_obj(fb, 0);
+
 	scanout_start = gem->paddr + fb->offsets[0] +
-		plane->state->crtc_y * fb->pitches[0] +
-		plane->state->crtc_x *
-		fb->format->cpp[0];
+			src_y * fb->pitches[0] +
+			src_x *	fb->format->cpp[0];
 
 	hdlcd = plane->dev->dev_private;
 	hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_LENGTH, fb->pitches[0]);
···
 				       formats, ARRAY_SIZE(formats),
 				       DRM_PLANE_TYPE_PRIMARY, NULL);
 	if (ret) {
-		devm_kfree(drm->dev, plane);
 		return ERR_PTR(ret);
 	}
 
···
 					&hdlcd_crtc_funcs, NULL);
 	if (ret) {
 		hdlcd_plane_destroy(primary);
-		devm_kfree(drm->dev, primary);
 		return ret;
 	}
 

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c

···
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
-static int atmel_hlcdc_attach_endpoint(struct drm_device *dev,
-				       const struct device_node *np)
+static int atmel_hlcdc_attach_endpoint(struct drm_device *dev, int endpoint)
 {
 	struct atmel_hlcdc_dc *dc = dev->dev_private;
 	struct atmel_hlcdc_rgb_output *output;
 	struct drm_panel *panel;
 	struct drm_bridge *bridge;
 	int ret;
+
+	ret = drm_of_find_panel_or_bridge(dev->dev->of_node, 0, endpoint,
+					  &panel, &bridge);
+	if (ret)
+		return ret;
 
 	output = devm_kzalloc(dev->dev, sizeof(*output), GFP_KERNEL);
 	if (!output)
···
 		return ret;
 
 	output->encoder.possible_crtcs = 0x1;
-
-	ret = drm_of_find_panel_or_bridge(np, 0, 0, &panel, &bridge);
-	if (ret)
-		return ret;
 
 	if (panel) {
 		output->connector.dpms = DRM_MODE_DPMS_OFF;
···
 
 int atmel_hlcdc_create_outputs(struct drm_device *dev)
 {
-	struct device_node *remote;
-	int ret = -ENODEV;
-	int endpoint = 0;
+	int endpoint, ret = 0;
 
-	while (true) {
-		/* Loop thru possible multiple connections to the output */
-		remote = of_graph_get_remote_node(dev->dev->of_node, 0,
-						  endpoint++);
-		if (!remote)
-			break;
+	for (endpoint = 0; !ret; endpoint++)
+		ret = atmel_hlcdc_attach_endpoint(dev, endpoint);
 
-		ret = atmel_hlcdc_attach_endpoint(dev, remote);
-		of_node_put(remote);
-		if (ret)
-			return ret;
-	}
+	/* At least one device was successfully attached.*/
+	if (ret == -ENODEV && endpoint)
+		return 0;
 
 	return ret;
 }

drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c

···
 
 		/* initially, until copy_from_user() and bo lookup succeeds: */
 		submit->nr_bos = 0;
+		submit->fence = NULL;
 
 		ww_acquire_init(&submit->ticket, &reservation_ww_class);
 	}
···
 	}
 
 	ww_acquire_fini(&submit->ticket);
-	dma_fence_put(submit->fence);
+	if (submit->fence)
+		dma_fence_put(submit->fence);
 	kfree(submit);
 }
 

drivers/gpu/drm/i915/gvt/handlers.c

···
 	mode = vgpu_vreg(vgpu, offset);
 
 	if (GFX_MODE_BIT_SET_IN_MASK(mode, START_DMA)) {
-		WARN_ONCE(1, "VM(%d): iGVT-g doesn't supporte GuC\n",
+		WARN_ONCE(1, "VM(%d): iGVT-g doesn't support GuC\n",
 				vgpu->id);
 		return 0;
 	}

drivers/gpu/drm/i915/gvt/render.c

···
 		} else
 			v = mmio->value;
 
+		if (mmio->in_context)
+			continue;
+
 		I915_WRITE(mmio->reg, v);
 		POSTING_READ(mmio->reg);
 

drivers/gpu/drm/i915/gvt/sched_policy.c

···
 	struct vgpu_sched_data *vgpu_data;
 	ktime_t cur_time;
 
-	/* no target to schedule */
-	if (!scheduler->next_vgpu)
+	/* no need to schedule if next_vgpu is the same with current_vgpu,
+	 * let scheduler chose next_vgpu again by setting it to NULL.
+	 */
+	if (scheduler->next_vgpu == scheduler->current_vgpu) {
+		scheduler->next_vgpu = NULL;
 		return;
+	}
 
 	/*
 	 * after the flag is set, workload dispatch thread will

drivers/gpu/drm/i915/i915_gem_gtt.c

···
 	u32 pte_flags;
 	int ret;
 
-	ret = vma->vm->allocate_va_range(vma->vm, vma->node.start, vma->size);
-	if (ret)
-		return ret;
+	if (!(vma->flags & I915_VMA_LOCAL_BIND)) {
+		ret = vma->vm->allocate_va_range(vma->vm, vma->node.start,
+						 vma->size);
+		if (ret)
+			return ret;
+	}
 
 	vma->pages = vma->obj->mm.pages;
 
···
 	if (flags & I915_VMA_LOCAL_BIND) {
 		struct i915_hw_ppgtt *appgtt = i915->mm.aliasing_ppgtt;
 
-		if (appgtt->base.allocate_va_range) {
+		if (!(vma->flags & I915_VMA_LOCAL_BIND) &&
+		    appgtt->base.allocate_va_range) {
 			ret = appgtt->base.allocate_va_range(&appgtt->base,
 							     vma->node.start,
 							     vma->node.size);

drivers/gpu/drm/i915/i915_reg.h

···
 #define CLKCFG_FSB_667					(3 << 0)	/* hrawclk 166 */
 #define CLKCFG_FSB_800					(2 << 0)	/* hrawclk 200 */
 #define CLKCFG_FSB_1067					(6 << 0)	/* hrawclk 266 */
+#define CLKCFG_FSB_1067_ALT				(0 << 0)	/* hrawclk 266 */
 #define CLKCFG_FSB_1333					(7 << 0)	/* hrawclk 333 */
-/* Note, below two are guess */
-#define CLKCFG_FSB_1600					(4 << 0)	/* hrawclk 400 */
-#define CLKCFG_FSB_1600_ALT				(0 << 0)	/* hrawclk 400 */
+/*
+ * Note that on at least on ELK the below value is reported for both
+ * 333 and 400 MHz BIOS FSB setting, but given that the gmch datasheet
+ * lists only 200/266/333 MHz FSB as supported let's decode it as 333 MHz.
+ */
+#define CLKCFG_FSB_1333_ALT				(4 << 0)	/* hrawclk 333 */
 #define CLKCFG_FSB_MASK					(7 << 0)
 #define CLKCFG_MEM_533					(1 << 4)
 #define CLKCFG_MEM_667					(2 << 4)

drivers/gpu/drm/i915/intel_cdclk.c

···
 	case CLKCFG_FSB_800:
 		return 200000;
 	case CLKCFG_FSB_1067:
+	case CLKCFG_FSB_1067_ALT:
 		return 266667;
 	case CLKCFG_FSB_1333:
+	case CLKCFG_FSB_1333_ALT:
 		return 333333;
-	/* these two are just a guess; one of them might be right */
-	case CLKCFG_FSB_1600:
-	case CLKCFG_FSB_1600_ALT:
-		return 400000;
 	default:
 		return 133333;
 	}

drivers/gpu/drm/i915/intel_dsi.c

···
 		val |= (ULPS_STATE_ENTER | DEVICE_READY);
 		I915_WRITE(MIPI_DEVICE_READY(port), val);
 
-		/* Wait for ULPS Not active */
+		/* Wait for ULPS active */
 		if (intel_wait_for_register(dev_priv,
-				MIPI_CTRL(port), GLK_ULPS_NOT_ACTIVE,
-				GLK_ULPS_NOT_ACTIVE, 20))
-			DRM_ERROR("ULPS is still active\n");
+				MIPI_CTRL(port), GLK_ULPS_NOT_ACTIVE, 0, 20))
+			DRM_ERROR("ULPS not active\n");
 
 		/* Exit ULPS */
 		val = I915_READ(MIPI_DEVICE_READY(port));

drivers/gpu/drm/i915/intel_lpe_audio.c

···
 #include <linux/acpi.h>
 #include <linux/device.h>
 #include <linux/pci.h>
+#include <linux/pm_runtime.h>
 
 #include "i915_drv.h"
 #include <linux/delay.h>
···
 	}
 
 	kfree(rsc);
+
+	pm_runtime_forbid(&platdev->dev);
+	pm_runtime_set_active(&platdev->dev);
+	pm_runtime_enable(&platdev->dev);
 
 	return platdev;
 

drivers/gpu/drm/nouveau/nouveau_display.c

···
 	pm_runtime_get_sync(drm->dev->dev);
 
 	drm_helper_hpd_irq_event(drm->dev);
+	/* enable polling for external displays */
+	drm_kms_helper_poll_enable(drm->dev);
 
 	pm_runtime_mark_last_busy(drm->dev->dev);
 	pm_runtime_put_sync(drm->dev->dev);
···
 	ret = disp->init(dev);
 	if (ret)
 		return ret;
-
-	/* enable polling for external displays */
-	if (!dev->mode_config.poll_enabled)
-		drm_kms_helper_poll_enable(dev);
 
 	/* enable hotplug interrupts */
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {

drivers/gpu/drm/nouveau/nouveau_drm.c

···
 		pm_runtime_allow(dev->dev);
 		pm_runtime_mark_last_busy(dev->dev);
 		pm_runtime_put(dev->dev);
+	} else {
+		/* enable polling for external displays */
+		drm_kms_helper_poll_enable(dev);
 	}
 	return 0;
 
···
 	pci_set_master(pdev);
 
 	ret = nouveau_do_resume(drm_dev, true);
-
-	if (!drm_dev->mode_config.poll_enabled)
-		drm_kms_helper_poll_enable(drm_dev);
 
 	/* do magic */
 	nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c

···
 	case NVKM_MEM_TARGET_NCOH: target = 3; break;
 	default:
 		WARN_ON(1);
-		return;
+		goto unlock;
 	}
 
 	nvkm_wr32(device, 0x002270, (nvkm_memory_addr(mem) >> 12) |
···
 				       & 0x00100000),
 			       msecs_to_jiffies(2000)) == 0)
 		nvkm_error(subdev, "runlist %d update timeout\n", runl);
+unlock:
 	mutex_unlock(&subdev->mutex);
 }
 

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_gr.c

···
 	ret = nvkm_firmware_get(subdev->device, f, &sig);
 	if (ret)
 		goto free_data;
+
 	img->sig = kmemdup(sig->data, sig->size, GFP_KERNEL);
 	if (!img->sig) {
 		ret = -ENOMEM;
···
 	img->ucode_data = ls_ucode_img_build(bl, code, data,
 					     &img->ucode_desc);
 	if (IS_ERR(img->ucode_data)) {
+		kfree(img->sig);
 		ret = PTR_ERR(img->ucode_data);
-		goto free_data;
+		goto free_sig;
 	}
 	img->ucode_size = img->ucode_desc.image_size;
 

drivers/gpu/host1x/Kconfig

···
 config TEGRA_HOST1X
 	tristate "NVIDIA Tegra host1x driver"
 	depends on ARCH_TEGRA || (ARM && COMPILE_TEST)
+	select IOMMU_IOVA if IOMMU_SUPPORT
 	help
 	  Driver for the NVIDIA Tegra host1x hardware.
 

drivers/hwmon/coretemp.c

···
 	struct platform_data *pdata;
 
 	/*
+	 * Don't execute this on resume as the offline callback did
+	 * not get executed on suspend.
+	 */
+	if (cpuhp_tasks_frozen)
+		return 0;
+
+	/*
 	 * CPUID.06H.EAX[0] indicates whether the CPU has thermal
 	 * sensors. We check this bit only, all the early CPUs
 	 * without thermal sensors will be filtered out.
···
 	struct platform_data *pd;
 	struct temp_data *tdata;
 	int indx, target;
+
+	/*
+	 * Don't execute this on suspend as the device remove locks
+	 * up the machine.
+	 */
+	if (cpuhp_tasks_frozen)
+		return 0;
 
 	/* If the physical CPU device does not exist, just return */
 	if (!pdev)

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

···
 	struct dw_i2c_dev *dev = platform_get_drvdata(pdev);
 	acpi_handle handle = ACPI_HANDLE(&pdev->dev);
 	const struct acpi_device_id *id;
+	u32 ss_ht, fp_ht, hs_ht, fs_ht;
 	struct acpi_device *adev;
 	const char *uid;
 
···
 	 * Try to get SDA hold time and *CNT values from an ACPI method for
 	 * selected speed modes.
 	 */
+	dw_i2c_acpi_params(pdev, "SSCN", &dev->ss_hcnt, &dev->ss_lcnt, &ss_ht);
+	dw_i2c_acpi_params(pdev, "FPCN", &dev->fp_hcnt, &dev->fp_lcnt, &fp_ht);
+	dw_i2c_acpi_params(pdev, "HSCN", &dev->hs_hcnt, &dev->hs_lcnt, &hs_ht);
+	dw_i2c_acpi_params(pdev, "FMCN", &dev->fs_hcnt, &dev->fs_lcnt, &fs_ht);
+
 	switch (dev->clk_freq) {
 	case 100000:
-		dw_i2c_acpi_params(pdev, "SSCN", &dev->ss_hcnt, &dev->ss_lcnt,
-				   &dev->sda_hold_time);
+		dev->sda_hold_time = ss_ht;
 		break;
 	case 1000000:
-		dw_i2c_acpi_params(pdev, "FPCN", &dev->fp_hcnt, &dev->fp_lcnt,
-				   &dev->sda_hold_time);
+		dev->sda_hold_time = fp_ht;
 		break;
 	case 3400000:
-		dw_i2c_acpi_params(pdev, "HSCN", &dev->hs_hcnt, &dev->hs_lcnt,
-				   &dev->sda_hold_time);
+		dev->sda_hold_time = hs_ht;
 		break;
 	case 400000:
 	default:
-		dw_i2c_acpi_params(pdev, "FMCN", &dev->fs_hcnt, &dev->fs_lcnt,
-				   &dev->sda_hold_time);
+		dev->sda_hold_time = fs_ht;
 		break;
 	}
 

drivers/i2c/busses/i2c-mv64xxx.c

···
 		rc = -EINVAL;
 		goto out;
 	}
-	drv_data->irq = irq_of_parse_and_map(np, 0);
 
 	drv_data->rstc = devm_reset_control_get_optional(dev, NULL);
 	if (IS_ERR(drv_data->rstc)) {
···
 	if (!IS_ERR(drv_data->clk))
 		clk_prepare_enable(drv_data->clk);
 
+	drv_data->irq = platform_get_irq(pd, 0);
+
 	if (pdata) {
 		drv_data->freq_m = pdata->freq_m;
 		drv_data->freq_n = pdata->freq_n;
-		drv_data->irq = platform_get_irq(pd, 0);
 		drv_data->adapter.timeout = msecs_to_jiffies(pdata->timeout);
 		drv_data->offload_enabled = false;
 		memcpy(&drv_data->reg_offsets, &mv64xxx_i2c_regs_mv64xxx, sizeof(drv_data->reg_offsets));
···
 			goto exit_clk;
 	}
 	if (drv_data->irq < 0) {
-		rc = -ENXIO;
+		rc = drv_data->irq;
 		goto exit_reset;
 	}
 

drivers/i2c/busses/i2c-xgene-slimpro.c

···
 	adapter->class = I2C_CLASS_HWMON;
 	adapter->dev.parent = &pdev->dev;
 	adapter->dev.of_node = pdev->dev.of_node;
+	ACPI_COMPANION_SET(&adapter->dev, ACPI_COMPANION(&pdev->dev));
 	i2c_set_adapdata(adapter, ctx);
 	rc = i2c_add_adapter(adapter);
 	if (rc) {

drivers/i2c/i2c-mux.c

···
 	if (force_nr) {
 		priv->adap.nr = force_nr;
 		ret = i2c_add_numbered_adapter(&priv->adap);
-		dev_err(&parent->dev,
-			"failed to add mux-adapter %u as bus %u (error=%d)\n",
-			chan_id, force_nr, ret);
+		if (ret < 0) {
+			dev_err(&parent->dev,
+				"failed to add mux-adapter %u as bus %u (error=%d)\n",
+				chan_id, force_nr, ret);
+			goto err_free_priv;
+		}
 	} else {
 		ret = i2c_add_adapter(&priv->adap);
-		dev_err(&parent->dev,
-			"failed to add mux-adapter %u (error=%d)\n",
-			chan_id, ret);
-	}
-	if (ret < 0) {
-		kfree(priv);
-		return ret;
+		if (ret < 0) {
+			dev_err(&parent->dev,
+				"failed to add mux-adapter %u (error=%d)\n",
+				chan_id, ret);
+			goto err_free_priv;
+		}
 	}
 
 	WARN(sysfs_create_link(&priv->adap.dev.kobj, &muxc->dev->kobj,
···
 
 	muxc->adapter[muxc->num_adapters++] = &priv->adap;
 	return 0;
+
+err_free_priv:
+	kfree(priv);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(i2c_mux_add_adapter);
 

drivers/i2c/muxes/i2c-mux-reg.c

···
 		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 		mux->data.reg_size = resource_size(res);
 		mux->data.reg = devm_ioremap_resource(&pdev->dev, res);
-		if (IS_ERR(mux->data.reg))
-			return PTR_ERR(mux->data.reg);
+		if (IS_ERR(mux->data.reg)) {
+			ret = PTR_ERR(mux->data.reg);
+			goto err_put_parent;
+		}
 	}
 
 	if (mux->data.reg_size != 4 && mux->data.reg_size != 2 &&
 	    mux->data.reg_size != 1) {
 		dev_err(&pdev->dev, "Invalid register size\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_put_parent;
 	}
 
 	muxc = i2c_mux_alloc(parent, &pdev->dev, mux->data.n_values, 0, 0,
 			     i2c_mux_reg_select, NULL);
-	if (!muxc)
-		return -ENOMEM;
+	if (!muxc) {
+		ret = -ENOMEM;
+		goto err_put_parent;
+	}
 	muxc->priv = mux;
 
 	platform_set_drvdata(pdev, muxc);
···
 
 		ret = i2c_mux_add_adapter(muxc, nr, mux->data.values[i], class);
 		if (ret)
-			goto add_adapter_failed;
+			goto err_del_mux_adapters;
 	}
 
 	dev_dbg(&pdev->dev, "%d port mux on %s adapter\n",
···
 
 	return 0;
 
-add_adapter_failed:
+err_del_mux_adapters:
 	i2c_mux_del_adapters(muxc);
+err_put_parent:
+	i2c_put_adapter(parent);
 
 	return ret;
 }

drivers/iommu/dma-iommu.c

···
 		dma_addr_t iova, size_t size)
 {
 	struct iova_domain *iovad = &cookie->iovad;
-	unsigned long shift = iova_shift(iovad);
 
 	/* The MSI case is only ever cleaning up its most recent allocation */
 	if (cookie->type == IOMMU_DMA_MSI_COOKIE)
 		cookie->msi_iova -= size;
 	else
-		free_iova_fast(iovad, iova >> shift, size >> shift);
+		free_iova_fast(iovad, iova_pfn(iovad, iova),
+				size >> iova_shift(iovad));
 }
 
 static void __iommu_dma_unmap(struct iommu_domain *domain, dma_addr_t dma_addr,
···
 {
 	struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
 	struct iommu_dma_cookie *cookie = domain->iova_cookie;
-	struct iova_domain *iovad = &cookie->iovad;
-	size_t iova_off = iova_offset(iovad, phys);
+	size_t iova_off = 0;
 	dma_addr_t iova;
 
-	size = iova_align(iovad, size + iova_off);
+	if (cookie->type == IOMMU_DMA_IOVA_COOKIE) {
+		iova_off = iova_offset(&cookie->iovad, phys);
+		size = iova_align(&cookie->iovad, size + iova_off);
+	}
+
 	iova = iommu_dma_alloc_iova(domain, size, dma_get_mask(dev), dev);
 	if (!iova)
 		return DMA_ERROR_CODE;

drivers/iommu/intel-iommu.c

···
 	if (context_copied(context)) {
 		u16 did_old = context_domain_id(context);
 
-		if (did_old >= 0 && did_old < cap_ndoms(iommu->cap))
+		if (did_old >= 0 && did_old < cap_ndoms(iommu->cap)) {
 			iommu->flush.flush_context(iommu, did_old,
 						   (((u16)bus) << 8) | devfn,
 						   DMA_CCMD_MASK_NOBIT,
 						   DMA_CCMD_DEVICE_INVL);
+			iommu->flush.flush_iotlb(iommu, did_old, 0, 0,
+						 DMA_TLB_DSI_FLUSH);
+		}
 	}
 
 	pgd = domain->pgd;

drivers/iommu/mtk_iommu_v1.c

···
 #include <linux/clk.h>
 #include <linux/component.h>
 #include <linux/device.h>
+#include <linux/dma-mapping.h>
 #include <linux/dma-iommu.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>

drivers/irqchip/irq-mbigen.c

···
 static inline void get_mbigen_clear_reg(irq_hw_number_t hwirq,
 					u32 *mask, u32 *addr)
 {
-	unsigned int ofst;
-
-	hwirq -= RESERVED_IRQ_PER_MBIGEN_CHIP;
-	ofst = hwirq / 32 * 4;
+	unsigned int ofst = (hwirq / 32) * 4;
 
 	*mask = 1 << (hwirq % 32);
 	*addr = ofst + REG_MBIGEN_CLEAR_OFFSET;
···
 	mgn_chip->pdev = pdev;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	mgn_chip->base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(mgn_chip->base))
-		return PTR_ERR(mgn_chip->base);
+	if (!res)
+		return -EINVAL;
+
+	mgn_chip->base = devm_ioremap(&pdev->dev, res->start,
+				      resource_size(res));
+	if (!mgn_chip->base) {
+		dev_err(&pdev->dev, "failed to ioremap %pR\n", res);
+		return -ENOMEM;
+	}
 
 	if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node)
 		err = mbigen_of_create_domain(pdev, mgn_chip);

drivers/md/dm-bufio.c

···
  * Buffers are freed after this timeout
  */
 static unsigned dm_bufio_max_age = DM_BUFIO_DEFAULT_AGE_SECS;
-static unsigned dm_bufio_retain_bytes = DM_BUFIO_DEFAULT_RETAIN_BYTES;
+static unsigned long dm_bufio_retain_bytes = DM_BUFIO_DEFAULT_RETAIN_BYTES;
 
 static unsigned long dm_bufio_peak_allocated;
 static unsigned long dm_bufio_allocated_kmem_cache;
···
 	return true;
 }
 
-static unsigned get_retain_buffers(struct dm_bufio_client *c)
+static unsigned long get_retain_buffers(struct dm_bufio_client *c)
 {
-        unsigned retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
-        return retain_bytes / c->block_size;
+        unsigned long retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
+        return retain_bytes >> (c->sectors_per_block_bits + SECTOR_SHIFT);
 }
 
 static unsigned long __scan(struct dm_bufio_client *c, unsigned long nr_to_scan,
···
 	struct dm_buffer *b, *tmp;
 	unsigned long freed = 0;
 	unsigned long count = nr_to_scan;
-	unsigned retain_target = get_retain_buffers(c);
+	unsigned long retain_target = get_retain_buffers(c);
 
 	for (l = 0; l < LIST_SIZE; l++) {
 		list_for_each_entry_safe_reverse(b, tmp, &c->lru[l], lru_list) {
···
 static void __evict_old_buffers(struct dm_bufio_client *c, unsigned long age_hz)
 {
 	struct dm_buffer *b, *tmp;
-	unsigned retain_target = get_retain_buffers(c);
-	unsigned count;
+	unsigned long retain_target = get_retain_buffers(c);
+	unsigned long count;
 	LIST_HEAD(write_list);
 
 	dm_bufio_lock(c);
···
 module_param_named(max_age_seconds, dm_bufio_max_age, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(max_age_seconds, "Max age of a buffer in seconds");
 
-module_param_named(retain_bytes, dm_bufio_retain_bytes, uint, S_IRUGO | S_IWUSR);
+module_param_named(retain_bytes, dm_bufio_retain_bytes, ulong, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(retain_bytes, "Try to keep at least this many bytes cached in memory");
 
 module_param_named(peak_allocated_bytes, dm_bufio_peak_allocated, ulong, S_IRUGO | S_IWUSR);

drivers/md/dm-cache-background-tracker.c

···
 {
 	struct background_tracker *b = kmalloc(sizeof(*b), GFP_KERNEL);
 
+	if (!b) {
+		DMERR("couldn't create background_tracker");
+		return NULL;
+	}
+
 	b->max_work = max_work;
 	atomic_set(&b->pending_promotes, 0);
 	atomic_set(&b->pending_writebacks, 0);

drivers/md/dm-cache-policy-smq.c

···
 	 * Cache entries may not be populated.  So we cannot rely on the
 	 * size of the clean queue.
 	 */
-	unsigned nr_clean;
-
 	if (idle) {
 		/*
 		 * We'd like to clean everything.
···
 		return q_size(&mq->dirty) == 0u;
 	}
 
-	nr_clean = from_cblock(mq->cache_size) - q_size(&mq->dirty);
-	return (nr_clean + btracker_nr_writebacks_queued(mq->bg_work)) >=
-		percent_to_target(mq, CLEAN_TARGET);
+	/*
+	 * If we're busy we don't worry about cleaning at all.
+	 */
+	return true;
 }
 
-static bool free_target_met(struct smq_policy *mq, bool idle)
+static bool free_target_met(struct smq_policy *mq)
 {
 	unsigned nr_free;
-
-	if (!idle)
-		return true;
 
 	nr_free = from_cblock(mq->cache_size) - mq->cache_alloc.nr_allocated;
 	return (nr_free + btracker_nr_demotions_queued(mq->bg_work)) >=
···
 	if (unlikely(WARN_ON_ONCE(!mq->migrations_allowed)))
 		return;
 
-	e = q_peek(&mq->clean, mq->clean.nr_levels, true);
+	e = q_peek(&mq->clean, mq->clean.nr_levels / 2, true);
 	if (!e) {
-		if (!clean_target_met(mq, false))
+		if (!clean_target_met(mq, true))
 			queue_writeback(mq);
 		return;
 	}
···
 		 * We always claim to be 'idle' to ensure some demotions happen
 		 * with continuous loads.
 		 */
-		if (!free_target_met(mq, true))
+		if (!free_target_met(mq))
 			queue_demotion(mq);
 		return;
 	}
···
 	spin_lock_irqsave(&mq->lock, flags);
 	r = btracker_issue(mq->bg_work, result);
 	if (r == -ENODATA) {
-		/* find some writeback work to do */
-		if (mq->migrations_allowed && !free_target_met(mq, idle))
-			queue_demotion(mq);
-
-		else if (!clean_target_met(mq, idle))
+		if (!clean_target_met(mq, idle)) {
 			queue_writeback(mq);
-
-		r = btracker_issue(mq->bg_work, result);
+			r = btracker_issue(mq->bg_work, result);
+		}
 	}
 	spin_unlock_irqrestore(&mq->lock, flags);
 
···
 		clear_pending(mq, e);
 		if (success) {
 			e->oblock = work->oblock;
+			e->level = NR_CACHE_LEVELS - 1;
 			push(mq, e);
 			// h, q, a
 		} else {

drivers/md/dm-cache-target.c

···
 
 static void __iot_io_end(struct io_tracker *iot, sector_t len)
 {
+	if (!len)
+		return;
+
 	iot->in_flight -= len;
 	if (!iot->in_flight)
 		iot->idle_time = jiffies;
···
 	spinlock_t invalidation_lock;
 	struct list_head invalidation_requests;
 
-	struct io_tracker origin_tracker;
+	struct io_tracker tracker;
 
 	struct work_struct commit_ws;
 	struct batcher committer;
···
 
 static bool accountable_bio(struct cache *cache, struct bio *bio)
 {
-	return ((bio->bi_bdev == cache->origin_dev->bdev) &&
-		bio_op(bio) != REQ_OP_DISCARD);
+	return bio_op(bio) != REQ_OP_DISCARD;
 }
 
 static void accounted_begin(struct cache *cache, struct bio *bio)
···
 
 	if (accountable_bio(cache, bio)) {
 		pb->len = bio_sectors(bio);
-		iot_io_begin(&cache->origin_tracker, pb->len);
+		iot_io_begin(&cache->tracker, pb->len);
 	}
 }
 
···
 	size_t pb_data_size = get_per_bio_data_size(cache);
 	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
 
-	iot_io_end(&cache->origin_tracker, pb->len);
+	iot_io_end(&cache->tracker, pb->len);
 }
 
 static void accounted_request(struct cache *cache, struct bio *bio)
···
 
 enum busy {
 	IDLE,
-	MODERATE,
 	BUSY
 };
 
 static enum busy spare_migration_bandwidth(struct cache *cache)
 {
-	bool idle = iot_idle_for(&cache->origin_tracker, HZ);
+	bool idle = iot_idle_for(&cache->tracker, HZ);
 	sector_t current_volume = (atomic_read(&cache->nr_io_migrations) + 1) *
 		cache->sectors_per_block;
 
-	if (current_volume <= cache->migration_threshold)
-		return idle ? IDLE : MODERATE;
+	if (idle && current_volume <= cache->migration_threshold)
+		return IDLE;
 	else
-		return idle ? MODERATE : BUSY;
+		return BUSY;
 }
 
 static void inc_hit_counter(struct cache *cache, struct bio *bio)
···
 
 	for (;;) {
 		b = spare_migration_bandwidth(cache);
-		if (b == BUSY)
-			break;
 
 		r = policy_get_background_work(cache->policy, b == IDLE, &op);
 		if (r == -ENODATA)
···
 
 	batcher_init(&cache->committer, commit_op, cache,
 		     issue_op, cache, cache->wq);
-	iot_init(&cache->origin_tracker);
+	iot_init(&cache->tracker);
 
 	init_rwsem(&cache->background_work_lock);
 	prevent_background_work(cache);
···
 
 	cancel_delayed_work(&cache->waker);
 	flush_workqueue(cache->wq);
-	WARN_ON(cache->origin_tracker.in_flight);
+	WARN_ON(cache->tracker.in_flight);
 
 	/*
 	 * If it's a flush suspend there won't be any deferred bios, so this

drivers/md/dm-mpath.c

···
  * it has been invoked.
  */
 #define dm_report_EIO(m)						\
-({									\
+do {									\
 	struct mapped_device *md = dm_table_get_md((m)->ti->table);	\
 									\
 	pr_debug("%s: returning EIO; QIFNP = %d; SQIFNP = %d; DNFS = %d\n", \
···
 		 test_bit(MPATHF_QUEUE_IF_NO_PATH, &(m)->flags),	\
 		 test_bit(MPATHF_SAVED_QUEUE_IF_NO_PATH, &(m)->flags),	\
 		 dm_noflush_suspending((m)->ti));			\
-	-EIO;								\
-})
+} while (0)
 
 /*
  * Map cloned requests (request-based multipath)
···
 	if (!pgpath) {
 		if (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags))
 			return DM_MAPIO_DELAY_REQUEUE;
-		return dm_report_EIO(m);	/* Failed */
+		dm_report_EIO(m);	/* Failed */
+		return DM_MAPIO_KILL;
 	} else if (test_bit(MPATHF_QUEUE_IO, &m->flags) ||
 		   test_bit(MPATHF_PG_INIT_REQUIRED, &m->flags)) {
 		if (pg_init_all_paths(m))
···
 	if (!pgpath) {
 		if (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags))
 			return DM_MAPIO_REQUEUE;
-		return dm_report_EIO(m);
+		dm_report_EIO(m);
+		return -EIO;
 	}
 
 	mpio->pgpath = pgpath;
···
 		if (atomic_read(&m->nr_valid_paths) == 0 &&
 		    !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) {
 			if (error == -EIO)
-				error = dm_report_EIO(m);
+				dm_report_EIO(m);
 			/* complete with the original error */
 			r = DM_ENDIO_DONE;
 		}
···
 		fail_path(mpio->pgpath);
 
 	if (atomic_read(&m->nr_valid_paths) == 0 &&
-	    !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags))
-		return dm_report_EIO(m);
+	    !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) {
+		dm_report_EIO(m);
+		return -EIO;
+	}
 
 	/* Queue for the daemon to resubmit */
 	dm_bio_restore(get_bio_details_from_bio(clone), clone);

drivers/md/dm-rq.c

···
 	case DM_MAPIO_KILL:
 		/* The target wants to complete the I/O */
 		dm_kill_unmapped_request(rq, -EIO);
+		break;
 	default:
 		DMWARN("unimplemented target map return value: %d", r);
 		BUG();

drivers/md/dm-thin-metadata.c

···
 	if (r < 0)
 		return r;
 
-	r = save_sm_roots(pmd);
+	r = dm_tm_pre_commit(pmd->tm);
 	if (r < 0)
 		return r;
 
-	r = dm_tm_pre_commit(pmd->tm);
+	r = save_sm_roots(pmd);
 	if (r < 0)
 		return r;
 

drivers/md/md.c

···
  * may proceed without blocking.  It is important to call this before
  * attempting a GFP_KERNEL allocation while holding the mddev lock.
  * Must be called with mddev_lock held.
- *
- * In the ->external case MD_SB_CHANGE_PENDING can not be cleared until mddev->lock
- * is dropped, so return -EAGAIN after notifying userspace.
  */
-int md_allow_write(struct mddev *mddev)
+void md_allow_write(struct mddev *mddev)
 {
 	if (!mddev->pers)
-		return 0;
+		return;
 	if (mddev->ro)
-		return 0;
+		return;
 	if (!mddev->pers->sync_request)
-		return 0;
+		return;
 
 	spin_lock(&mddev->lock);
 	if (mddev->in_sync) {
···
 		spin_unlock(&mddev->lock);
 		md_update_sb(mddev, 0);
 		sysfs_notify_dirent_safe(mddev->sysfs_state);
+		/* wait for the dirty state to be recorded in the metadata */
+		wait_event(mddev->sb_wait,
+			   !test_bit(MD_SB_CHANGE_CLEAN, &mddev->sb_flags) &&
+			   !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags));
 	} else
 		spin_unlock(&mddev->lock);
-
-	if (test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags))
-		return -EAGAIN;
-	else
-		return 0;
 }
 EXPORT_SYMBOL_GPL(md_allow_write);
 

drivers/md/md.h

···
 			bool metadata_op);
 extern void md_do_sync(struct md_thread *thread);
 extern void md_new_event(struct mddev *mddev);
-extern int md_allow_write(struct mddev *mddev);
+extern void md_allow_write(struct mddev *mddev);
 extern void md_wait_for_blocked_rdev(struct md_rdev *rdev, struct mddev *mddev);
 extern void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors);
 extern int md_check_no_bitmap(struct mddev *mddev);

drivers/md/persistent-data/dm-space-map-disk.c

···
 
 static int sm_disk_dec_block(struct dm_space_map *sm, dm_block_t b)
 {
+	int r;
+	uint32_t old_count;
 	enum allocation_event ev;
 	struct sm_disk *smd = container_of(sm, struct sm_disk, sm);
 
-	return sm_ll_dec(&smd->ll, b, &ev);
+	r = sm_ll_dec(&smd->ll, b, &ev);
+	if (!r && (ev == SM_FREE)) {
+		/*
+		 * It's only free if it's also free in the last
+		 * transaction.
+		 */
+		r = sm_ll_lookup(&smd->old_ll, b, &old_count);
+		if (!r && !old_count)
+			smd->nr_allocated_this_transaction--;
+	}
+
+	return r;
 }
 
 static int sm_disk_new_block(struct dm_space_map *sm, dm_block_t *b)

drivers/md/raid0.c

···
 		blk_queue_max_hw_sectors(mddev->queue, mddev->chunk_sectors);
 		blk_queue_max_write_same_sectors(mddev->queue, mddev->chunk_sectors);
 		blk_queue_max_write_zeroes_sectors(mddev->queue, mddev->chunk_sectors);
-		blk_queue_max_discard_sectors(mddev->queue, mddev->chunk_sectors);
+		blk_queue_max_discard_sectors(mddev->queue, UINT_MAX);
 
 		blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9);
 		blk_queue_io_opt(mddev->queue,
···
 	}
 }
 
+static void raid0_handle_discard(struct mddev *mddev, struct bio *bio)
+{
+	struct r0conf *conf = mddev->private;
+	struct strip_zone *zone;
+	sector_t start = bio->bi_iter.bi_sector;
+	sector_t end;
+	unsigned int stripe_size;
+	sector_t first_stripe_index, last_stripe_index;
+	sector_t start_disk_offset;
+	unsigned int start_disk_index;
+	sector_t end_disk_offset;
+	unsigned int end_disk_index;
+	unsigned int disk;
+
+	zone = find_zone(conf, &start);
+
+	if (bio_end_sector(bio) > zone->zone_end) {
+		struct bio *split = bio_split(bio,
+			zone->zone_end - bio->bi_iter.bi_sector, GFP_NOIO,
+			mddev->bio_set);
+		bio_chain(split, bio);
+		generic_make_request(bio);
+		bio = split;
+		end = zone->zone_end;
+	} else
+		end = bio_end_sector(bio);
+
+	if (zone != conf->strip_zone)
+		end = end - zone[-1].zone_end;
+
+	/* Now start and end is the offset in zone */
+	stripe_size = zone->nb_dev * mddev->chunk_sectors;
+
+	first_stripe_index = start;
+	sector_div(first_stripe_index, stripe_size);
+	last_stripe_index = end;
+	sector_div(last_stripe_index, stripe_size);
+
+	start_disk_index = (int)(start - first_stripe_index * stripe_size) /
+		mddev->chunk_sectors;
+	start_disk_offset = ((int)(start - first_stripe_index * stripe_size) %
+		mddev->chunk_sectors) +
+		first_stripe_index * mddev->chunk_sectors;
+	end_disk_index = (int)(end - last_stripe_index * stripe_size) /
+		mddev->chunk_sectors;
+	end_disk_offset = ((int)(end - last_stripe_index * stripe_size) %
+		mddev->chunk_sectors) +
+		last_stripe_index * mddev->chunk_sectors;
+
+	for (disk = 0; disk < zone->nb_dev; disk++) {
+		sector_t dev_start, dev_end;
+		struct bio *discard_bio = NULL;
+		struct md_rdev *rdev;
+
+		if (disk < start_disk_index)
+			dev_start = (first_stripe_index + 1) *
+				mddev->chunk_sectors;
+		else if (disk > start_disk_index)
+			dev_start = first_stripe_index * mddev->chunk_sectors;
+		else
+			dev_start = start_disk_offset;
+
+		if (disk < end_disk_index)
+			dev_end = (last_stripe_index + 1) * mddev->chunk_sectors;
+		else if (disk > end_disk_index)
+			dev_end = last_stripe_index * mddev->chunk_sectors;
+		else
+			dev_end = end_disk_offset;
+
+		if (dev_end <= dev_start)
+			continue;
+
+		rdev = conf->devlist[(zone - conf->strip_zone) *
+			conf->strip_zone[0].nb_dev + disk];
+		if (__blkdev_issue_discard(rdev->bdev,
+			dev_start + zone->dev_start + rdev->data_offset,
+			dev_end - dev_start, GFP_NOIO, 0, &discard_bio) ||
+		    !discard_bio)
+			continue;
+		bio_chain(discard_bio, bio);
+		if (mddev->gendisk)
+			trace_block_bio_remap(bdev_get_queue(rdev->bdev),
+				discard_bio, disk_devt(mddev->gendisk),
+				bio->bi_iter.bi_sector);
+		generic_make_request(discard_bio);
+	}
+	bio_endio(bio);
+}
+
 static void raid0_make_request(struct mddev *mddev, struct bio *bio)
 {
 	struct strip_zone *zone;
···
 
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
 		md_flush_request(mddev, bio);
+		return;
+	}
+
+	if (unlikely((bio_op(bio) == REQ_OP_DISCARD))) {
+		raid0_handle_discard(mddev, bio);
 		return;
 	}
 
···
 	bio->bi_iter.bi_sector = sector + zone->dev_start +
 		tmp_dev->data_offset;
 
-	if (unlikely((bio_op(bio) == REQ_OP_DISCARD) &&
-		     !blk_queue_discard(bdev_get_queue(bio->bi_bdev)))) {
-		/* Just ignore it */
-		bio_endio(bio);
-	} else {
-		if (mddev->gendisk)
-			trace_block_bio_remap(bdev_get_queue(bio->bi_bdev),
-					      bio, disk_devt(mddev->gendisk),
-					      bio_sector);
-		mddev_check_writesame(mddev, bio);
-		mddev_check_write_zeroes(mddev, bio);
-		generic_make_request(bio);
-	}
+	if (mddev->gendisk)
+		trace_block_bio_remap(bdev_get_queue(bio->bi_bdev),
+				      bio, disk_devt(mddev->gendisk),
+				      bio_sector);
+	mddev_check_writesame(mddev, bio);
+	mddev_check_write_zeroes(mddev, bio);
+	generic_make_request(bio);
 }
 
 static void raid0_status(struct seq_file *seq, struct mddev *mddev)

drivers/md/raid1.c

···
 					break;
 			}
 			continue;
-		} else
+		} else {
+			if ((sectors > best_good_sectors) && (best_disk >= 0))
+				best_disk = -1;
 			best_good_sectors = sectors;
+		}
 
 		if (best_disk >= 0)
 			/* At least two disks to choose from so failfast is OK */
···
 			plug = container_of(cb, struct raid1_plug_cb, cb);
 		else
 			plug = NULL;
-		spin_lock_irqsave(&conf->device_lock, flags);
 		if (plug) {
 			bio_list_add(&plug->pending, mbio);
 			plug->pending_cnt++;
 		} else {
+			spin_lock_irqsave(&conf->device_lock, flags);
 			bio_list_add(&conf->pending_bio_list, mbio);
 			conf->pending_count++;
-		}
-		spin_unlock_irqrestore(&conf->device_lock, flags);
-		if (!plug)
+			spin_unlock_irqrestore(&conf->device_lock, flags);
 			md_wakeup_thread(mddev->thread);
+		}
 	}
 
 	r1_bio_write_done(r1_bio);
···
 	struct r1conf *conf = mddev->private;
 	int cnt, raid_disks;
 	unsigned long flags;
-	int d, d2, err;
+	int d, d2;
 
 	/* Cannot change chunk_size, layout, or level */
 	if (mddev->chunk_sectors != mddev->new_chunk_sectors ||
···
 		return -EINVAL;
 	}
 
-	if (!mddev_is_clustered(mddev)) {
-		err = md_allow_write(mddev);
-		if (err)
-			return err;
-	}
+	if (!mddev_is_clustered(mddev))
+		md_allow_write(mddev);
 
 	raid_disks = mddev->raid_disks + mddev->delta_disks;
 

drivers/md/raid10.c

···
 		plug = container_of(cb, struct raid10_plug_cb, cb);
 	else
 		plug = NULL;
-	spin_lock_irqsave(&conf->device_lock, flags);
 	if (plug) {
 		bio_list_add(&plug->pending, mbio);
 		plug->pending_cnt++;
 	} else {
+		spin_lock_irqsave(&conf->device_lock, flags);
 		bio_list_add(&conf->pending_bio_list, mbio);
 		conf->pending_count++;
-	}
-	spin_unlock_irqrestore(&conf->device_lock, flags);
-	if (!plug)
+		spin_unlock_irqrestore(&conf->device_lock, flags);
 		md_wakeup_thread(mddev->thread);
+	}
 }
 
 static void raid10_write_request(struct mddev *mddev, struct bio *bio,

drivers/md/raid5-cache.c

···
 #include "md.h"
 #include "raid5.h"
 #include "bitmap.h"
+#include "raid5-log.h"
 
 /*
  * metadata/data stored in disk with 4k size unit (a block) regardless
···
 	__r5l_set_io_unit_state(io, IO_UNIT_IO_START);
 	spin_unlock_irqrestore(&log->io_list_lock, flags);
 
+	/*
+	 * In case of journal device failures, submit_bio will get error
+	 * and calls endio, then active stripes will continue write
+	 * process. Therefore, it is not necessary to check Faulty bit
+	 * of journal device here.
+	 *
+	 * We can't check split_bio after current_bio is submitted. If
+	 * io->split_bio is null, after current_bio is submitted, current_bio
+	 * might already be completed and the io_unit is freed. We submit
+	 * split_bio first to avoid the issue.
+	 */
+	if (io->split_bio) {
+		if (io->has_flush)
+			io->split_bio->bi_opf |= REQ_PREFLUSH;
+		if (io->has_fua)
+			io->split_bio->bi_opf |= REQ_FUA;
+		submit_bio(io->split_bio);
+	}
+
 	if (io->has_flush)
 		io->current_bio->bi_opf |= REQ_PREFLUSH;
 	if (io->has_fua)
 		io->current_bio->bi_opf |= REQ_FUA;
 	submit_bio(io->current_bio);
-
-	if (!io->split_bio)
-		return;
-
-	if (io->has_flush)
-		io->split_bio->bi_opf |= REQ_PREFLUSH;
-	if (io->has_fua)
-		io->split_bio->bi_opf |= REQ_FUA;
-	submit_bio(io->split_bio);
 }
 
 /* deferred io_unit will be dispatched here */
···
 		return;
 	pr_info("md/raid:%s: Disabling writeback cache for degraded array.\n",
 		mdname(mddev));
+
+	/* wait superblock change before suspend */
+	wait_event(mddev->sb_wait,
+		   !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags));
+
 	mddev_suspend(mddev);
 	log->r5c_journal_mode = R5C_JOURNAL_MODE_WRITE_THROUGH;
 	mddev_resume(mddev);
···
 	 * When run in degraded mode, array is set to write-through mode.
 	 * This check helps drain pending write safely in the transition to
 	 * write-through mode.
+	 *
+	 * When a stripe is syncing, the write is also handled in write
+	 * through mode.
 	 */
-	if (s->failed) {
+	if (s->failed || test_bit(STRIPE_SYNCING, &sh->state)) {
 		r5c_make_stripe_write_out(sh);
 		return -EAGAIN;
 	}
···
 	}
 
 	r5l_append_flush_payload(log, sh->sector);
+	/* stripe is flused to raid disks, we can do resync now */
+	if (test_bit(STRIPE_SYNC_REQUESTED, &sh->state))
+		set_bit(STRIPE_HANDLE, &sh->state);
 }
 
 int r5c_cache_data(struct r5l_log *log, struct stripe_head *sh)
···
 	return ret;
 }
 
-void r5c_update_on_rdev_error(struct mddev *mddev)
+void r5c_update_on_rdev_error(struct mddev *mddev, struct md_rdev *rdev)
 {
 	struct r5conf *conf = mddev->private;
 	struct r5l_log *log = conf->log;
···
 	if (!log)
 		return;
 
-	if (raid5_calc_degraded(conf) > 0 &&
+	if ((raid5_calc_degraded(conf) > 0 ||
+	     test_bit(Journal, &rdev->flags)) &&
 	    conf->log->r5c_journal_mode == R5C_JOURNAL_MODE_WRITE_BACK)
 		schedule_work(&log->disable_writeback_work);
 }

drivers/md/raid5-log.h

···
 extern void r5c_check_stripe_cache_usage(struct r5conf *conf);
 extern void r5c_check_cached_full_stripe(struct r5conf *conf);
 extern struct md_sysfs_entry r5c_journal_mode;
-extern void r5c_update_on_rdev_error(struct mddev *mddev);
+extern void r5c_update_on_rdev_error(struct mddev *mddev,
+				     struct md_rdev *rdev);
 extern bool r5c_big_stripe_cached(struct r5conf *conf, sector_t sect);
 
 extern struct dma_async_tx_descriptor *

drivers/md/raid5.c

···
 static inline void lock_all_device_hash_locks_irq(struct r5conf *conf)
 {
 	int i;
-	local_irq_disable();
-	spin_lock(conf->hash_locks);
+	spin_lock_irq(conf->hash_locks);
 	for (i = 1; i < NR_STRIPE_HASH_LOCKS; i++)
 		spin_lock_nest_lock(conf->hash_locks + i, conf->hash_locks);
 	spin_lock(&conf->device_lock);
···
 {
 	int i;
 	spin_unlock(&conf->device_lock);
-	for (i = NR_STRIPE_HASH_LOCKS; i; i--)
-		spin_unlock(conf->hash_locks + i - 1);
-	local_irq_enable();
+	for (i = NR_STRIPE_HASH_LOCKS - 1; i; i--)
+		spin_unlock(conf->hash_locks + i);
+	spin_unlock_irq(conf->hash_locks);
 }
 
 /* Find first data disk in a raid6 stripe */
···
 			if (test_bit(R5_InJournal, &sh->dev[i].flags))
 				injournal++;
 	/*
-	 * When quiesce in r5c write back, set STRIPE_HANDLE for stripes with
-	 * data in journal, so they are not released to cached lists
+	 * In the following cases, the stripe cannot be released to cached
+	 * lists. Therefore, we make the stripe write out and set
+	 * STRIPE_HANDLE:
+	 *   1. when quiesce in r5c write back;
+	 *   2. when resync is requested fot the stripe.
 	 */
-	if (conf->quiesce && r5c_is_writeback(conf->log) &&
-	    !test_bit(STRIPE_HANDLE, &sh->state) && injournal != 0) {
+	if (test_bit(STRIPE_SYNC_REQUESTED, &sh->state) ||
+	    (conf->quiesce && r5c_is_writeback(conf->log) &&
+	     !test_bit(STRIPE_HANDLE, &sh->state) && injournal != 0)) {
 		if (test_bit(STRIPE_R5C_CACHING, &sh->state))
 			r5c_make_stripe_write_out(sh);
 		set_bit(STRIPE_HANDLE, &sh->state);
···
 
 static void lock_two_stripes(struct stripe_head *sh1, struct stripe_head *sh2)
 {
-	local_irq_disable();
 	if (sh1 > sh2) {
-		spin_lock(&sh2->stripe_lock);
+		spin_lock_irq(&sh2->stripe_lock);
 		spin_lock_nested(&sh1->stripe_lock, 1);
 	} else {
-		spin_lock(&sh1->stripe_lock);
+		spin_lock_irq(&sh1->stripe_lock);
 		spin_lock_nested(&sh2->stripe_lock, 1);
 	}
 }
···
 static void unlock_two_stripes(struct stripe_head *sh1, struct stripe_head *sh2)
 {
 	spin_unlock(&sh1->stripe_lock);
-	spin_unlock(&sh2->stripe_lock);
-	local_irq_enable();
+	spin_unlock_irq(&sh2->stripe_lock);
 }
 
 /* Only freshly new full stripe normal write stripe can be added to a batch list */
···
 	struct stripe_head *osh, *nsh;
 	LIST_HEAD(newstripes);
 	struct disk_info *ndisks;
-	int err;
+	int err = 0;
 	struct kmem_cache *sc;
 	int i;
 	int hash, cnt;
 
-	err = md_allow_write(conf->mddev);
-	if (err)
-		return err;
+	md_allow_write(conf->mddev);
 
 	/* Step 1 */
 	sc = kmem_cache_create(conf->cache_name[1-conf->active_name],
···
 		bdevname(rdev->bdev, b),
 		mdname(mddev),
 		conf->raid_disks - mddev->degraded);
-	r5c_update_on_rdev_error(mddev);
+	r5c_update_on_rdev_error(mddev, rdev);
 }
 
 /*
···
  *      When LOG_CRITICAL, stripes with injournal == 0 will be sent to
  *      no_space_stripes list.
  *
+ *   3. during journal failure
+ *      In journal failure, we try to flush all cached data to raid disks
+ *      based on data in stripe cache. The array is read-only to upper
+ *      layers, so we would skip all pending writes.
+ *
  */
 static inline bool delay_towrite(struct r5conf *conf,
 				 struct r5dev *dev,
···
 	/* case 2 above */
 	if (test_bit(R5C_LOG_CRITICAL, &conf->cache_state) &&
 	    s->injournal > 0)
+		return true;
+	/* case 3 above */
+	if (s->log_failed && s->injournal)
 		return true;
 	return false;
 }
···
 
 	if (test_bit(STRIPE_SYNC_REQUESTED, &sh->state) && !sh->batch_head) {
 		spin_lock(&sh->stripe_lock);
-		/* Cannot process 'sync' concurrently with 'discard' */
-		if (!test_bit(STRIPE_DISCARD, &sh->state) &&
+		/*
+		 * Cannot process 'sync' concurrently with 'discard'.
+		 * Flush data in r5cache before 'sync'.
+		 */
+		if (!test_bit(STRIPE_R5C_PARTIAL_STRIPE, &sh->state) &&
+		    !test_bit(STRIPE_R5C_FULL_STRIPE, &sh->state) &&
+		    !test_bit(STRIPE_DISCARD, &sh->state) &&
 		    test_and_clear_bit(STRIPE_SYNC_REQUESTED, &sh->state)) {
 			set_bit(STRIPE_SYNCING, &sh->state);
 			clear_bit(STRIPE_INSYNC, &sh->state);
···
 	       " to_write=%d failed=%d failed_num=%d,%d\n",
 	       s.locked, s.uptodate, s.to_read, s.to_write, s.failed,
 	       s.failed_num[0], s.failed_num[1]);
-	/* check if the array has lost more than max_degraded devices and,
+	/*
+	 * check if the array has lost more than max_degraded devices and,
 	 * if so, some requests might need to be failed.
+	 *
+	 * When journal device failed (log_failed), we will only process
+	 * the stripe if there is data need write to raid disks
 	 */
-	if (s.failed > conf->max_degraded || s.log_failed) {
+	if (s.failed > conf->max_degraded ||
+	    (s.log_failed && s.injournal == 0)) {
 		sh->check_state = 0;
 		sh->reconstruct_state = 0;
 		break_stripe_batch_list(sh, 0);
···
 	struct stripe_head *sh, *tmp;
 	struct list_head *handle_list = NULL;
 	struct r5worker_group *wg;
-	bool second_try = !r5c_is_writeback(conf->log);
-	bool try_loprio = test_bit(R5C_LOG_TIGHT, &conf->cache_state);
+	bool second_try = !r5c_is_writeback(conf->log) &&
+		!r5l_log_disk_error(conf);
+	bool try_loprio = test_bit(R5C_LOG_TIGHT, &conf->cache_state) ||
+		r5l_log_disk_error(conf);
 
 again:
 	wg = NULL;
···
 raid5_set_cache_size(struct mddev *mddev, int size)
 {
 	struct r5conf *conf = mddev->private;
-	int err;
 
 	if (size <= 16 || size > 32768)
 		return -EINVAL;
···
 		;
 	mutex_unlock(&conf->cache_size_mutex);
 
-
-	err = md_allow_write(mddev);
-	if (err)
-		return err;
+	md_allow_write(mddev);
 
 	mutex_lock(&conf->cache_size_mutex);
 	while (size > conf->max_nr_stripes)
···
 		 * neilb: there is no locking about new writes here,
 		 * so this cannot be safe.
 		 */
-		if (atomic_read(&conf->active_stripes)) {
+		if (atomic_read(&conf->active_stripes) ||
+		    atomic_read(&conf->r5c_cached_full_stripes) ||
+		    atomic_read(&conf->r5c_cached_partial_stripes)) {
 			return -EBUSY;
 		}
 		log_exit(conf);

drivers/misc/Kconfig

···
 
 config PCI_ENDPOINT_TEST
 	depends on PCI
+	select CRC32
 	tristate "PCI Endpoint Test driver"
 	---help---
            Enable this configuration option to enable the host side test driver

drivers/net/dsa/mv88e6xxx/chip.c

···
 		mv88e6xxx_g1_stats_read(chip, reg, &low);
 		if (s->sizeof_stat == 8)
 			mv88e6xxx_g1_stats_read(chip, reg + 1, &high);
+		break;
+	default:
+		return UINT64_MAX;
 	}
 	value = (((u64)high) << 16) | low;
 	return value;

drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c

···
 static int hw_atl_a0_hw_offload_set(struct aq_hw_s *self,
 				    struct aq_nic_cfg_s *aq_nic_cfg)
 {
-	int err = 0;
-
 	/* TX checksums offloads*/
 	tpo_ipv4header_crc_offload_en_set(self, 1);
 	tpo_tcp_udp_crc_offload_en_set(self, 1);
-	if (err < 0)
-		goto err_exit;
 
 	/* RX checksums offloads*/
 	rpo_ipv4header_crc_offload_en_set(self, 1);
 	rpo_tcp_udp_crc_offload_en_set(self, 1);
-	if (err < 0)
-		goto err_exit;
 
 	/* LSO offloads*/
 	tdm_large_send_offload_en_set(self, 0xFFFFFFFFU);
-	if (err < 0)
-		goto err_exit;
 
-	err = aq_hw_err_from_flags(self);
-
-err_exit:
-	return err;
+	return aq_hw_err_from_flags(self);
 }
 
 static int hw_atl_a0_hw_init_tx_path(struct aq_hw_s *self)

drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c

···
 static int hw_atl_b0_hw_offload_set(struct aq_hw_s *self,
 				    struct aq_nic_cfg_s *aq_nic_cfg)
 {
-	int err = 0;
 	unsigned int i;
 
 	/* TX checksums offloads*/
 	tpo_ipv4header_crc_offload_en_set(self, 1);
 	tpo_tcp_udp_crc_offload_en_set(self, 1);
-	if (err < 0)
-		goto err_exit;
 
 	/* RX checksums offloads*/
 	rpo_ipv4header_crc_offload_en_set(self, 1);
 	rpo_tcp_udp_crc_offload_en_set(self, 1);
-	if (err < 0)
-		goto err_exit;
 
 	/* LSO offloads*/
 	tdm_large_send_offload_en_set(self, 0xFFFFFFFFU);
-	if (err < 0)
-		goto err_exit;
 
 /* LRO offloads */
 	{
···
 
 		rpo_lro_en_set(self, aq_nic_cfg->is_lro ? 0xFFFFFFFFU : 0U);
 	}
-	err = aq_hw_err_from_flags(self);
-
-err_exit:
-	return err;
+	return aq_hw_err_from_flags(self);
 }
 
 static int hw_atl_b0_hw_init_tx_path(struct aq_hw_s *self)

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

···
 	dev->min_mtu = ETH_ZLEN;
 	dev->max_mtu = BNXT_MAX_MTU;
 
-	bnxt_dcb_init(bp);
-
 #ifdef CONFIG_BNXT_SRIOV
 	init_waitqueue_head(&bp->sriov_cfg_wait);
 #endif
···
 	bnxt_hwrm_func_qcfg(bp);
 	bnxt_hwrm_port_led_qcaps(bp);
 	bnxt_ethtool_init(bp);
+	bnxt_dcb_init(bp);
 
 	bnxt_set_rx_skb_mode(bp, false);
 	bnxt_set_tpa_flags(bp);

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

···
 	if ((mode & DCB_CAP_DCBX_VER_CEE) || !(mode & DCB_CAP_DCBX_VER_IEEE))
 		return 1;
 
-	if ((mode & DCB_CAP_DCBX_HOST) && BNXT_VF(bp))
-		return 1;
+	if (mode & DCB_CAP_DCBX_HOST) {
+		if (BNXT_VF(bp) || (bp->flags & BNXT_FLAG_FW_LLDP_AGENT))
+			return 1;
+	}
 
 	if (mode == bp->dcbx_cap)
 		return 0;

drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h

···
 
 #define T4FW_VERSION_MAJOR 0x01
 #define T4FW_VERSION_MINOR 0x10
-#define T4FW_VERSION_MICRO 0x21
+#define T4FW_VERSION_MICRO 0x2B
 #define T4FW_VERSION_BUILD 0x00
 
 #define T4FW_MIN_VERSION_MAJOR 0x01
···
 
 #define T5FW_VERSION_MAJOR 0x01
 #define T5FW_VERSION_MINOR 0x10
-#define T5FW_VERSION_MICRO 0x21
+#define T5FW_VERSION_MICRO 0x2B
 #define T5FW_VERSION_BUILD 0x00
 
 #define T5FW_MIN_VERSION_MAJOR 0x00
···
 
 #define T6FW_VERSION_MAJOR 0x01
 #define T6FW_VERSION_MINOR 0x10
-#define T6FW_VERSION_MICRO 0x21
+#define T6FW_VERSION_MICRO 0x2B
 #define T6FW_VERSION_BUILD 0x00
 
 #define T6FW_MIN_VERSION_MAJOR 0x00

drivers/net/ethernet/faraday/ftmac100.c

···
 	return 0;
 }
 
+static const struct of_device_id ftmac100_of_ids[] = {
+	{ .compatible = "andestech,atmac100" },
+	{ }
+};
+
 static struct platform_driver ftmac100_driver = {
 	.probe		= ftmac100_probe,
 	.remove		= ftmac100_remove,
 	.driver		= {
 		.name	= DRV_NAME,
+		.of_match_table = ftmac100_of_ids
 	},
 };
 
···
 MODULE_AUTHOR("Po-Yu Chuang <[e-mail]>");
 MODULE_DESCRIPTION("FTMAC100 driver");
 MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(of, ftmac100_of_ids);

drivers/net/ethernet/mellanox/mlx4/main.c

···
 	int port = 0;
 
 	if (msi_x) {
-		int nreq = dev->caps.num_ports * num_online_cpus() + 1;
-
-		nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
-			     nreq);
-		if (nreq > MAX_MSIX)
-			nreq = MAX_MSIX;
+		int nreq = min3(dev->caps.num_ports *
+				(int)num_online_cpus() + 1,
+				dev->caps.num_eqs - dev->caps.reserved_eqs,
+				MAX_MSIX);
 
 		entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
 		if (!entries)

drivers/net/ethernet/mellanox/mlx5/core/Kconfig

···
 
 config MLX5_CORE_EN
 	bool "Mellanox Technologies ConnectX-4 Ethernet support"
-	depends on NETDEVICES && ETHERNET && PCI && MLX5_CORE
+	depends on NETDEVICES && ETHERNET && INET && PCI && MLX5_CORE
 	depends on IPV6=y || IPV6=n || MLX5_CORE=m
 	imply PTP_1588_CLOCK
 	default n

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

···
 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv);
 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt);
 
-int mlx5e_create_ttc_table(struct mlx5e_priv *priv, u32 underlay_qpn);
+int mlx5e_create_ttc_table(struct mlx5e_priv *priv);
 void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv);
 
 int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc,

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

···
 	ptys2ethtool_supported_port(link_ksettings, eth_proto_cap);
 	ptys2ethtool_supported_link(supported, eth_proto_cap);
 	ethtool_link_ksettings_add_link_mode(link_ksettings, supported, Pause);
-	ethtool_link_ksettings_add_link_mode(link_ksettings, supported, Asym_Pause);
 }
 
 static void get_advertising(u32 eth_proto_cap, u8 tx_pause,
···
 	unsigned long *advertising = link_ksettings->link_modes.advertising;
 
 	ptys2ethtool_adver_link(advertising, eth_proto_cap);
-	if (tx_pause)
+	if (rx_pause)
 		ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, Pause);
 	if (tx_pause ^ rx_pause)
 		ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, Asym_Pause);
···
 	struct mlx5e_priv *priv    = netdev_priv(netdev);
 	struct mlx5_core_dev *mdev = priv->mdev;
 	u32 out[MLX5_ST_SZ_DW(ptys_reg)] = {0};
+	u32 rx_pause = 0;
+	u32 tx_pause = 0;
 	u32 eth_proto_cap;
 	u32 eth_proto_admin;
 	u32 eth_proto_lp;
···
 	an_disable_admin = MLX5_GET(ptys_reg, out, an_disable_admin);
 	an_status        = MLX5_GET(ptys_reg, out, an_status);
 
+	mlx5_query_port_pause(mdev, &rx_pause, &tx_pause);
+
 	ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
 	ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
 
 	get_supported(eth_proto_cap, link_ksettings);
-	get_advertising(eth_proto_admin, 0, 0, link_ksettings);
+	get_advertising(eth_proto_admin, tx_pause, rx_pause, link_ksettings);
 	get_speed_duplex(netdev, eth_proto_oper, link_ksettings);
 
 	eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;

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

···
 	mlx5e_destroy_flow_table(&ttc->ft);
 }
 
-int mlx5e_create_ttc_table(struct mlx5e_priv *priv, u32 underlay_qpn)
+int mlx5e_create_ttc_table(struct mlx5e_priv *priv)
 {
 	struct mlx5e_ttc_table *ttc = &priv->fs.ttc;
 	struct mlx5_flow_table_attr ft_attr = {};
···
 	ft_attr.max_fte = MLX5E_TTC_TABLE_SIZE;
 	ft_attr.level = MLX5E_TTC_FT_LEVEL;
 	ft_attr.prio = MLX5E_NIC_PRIO;
-	ft_attr.underlay_qpn = underlay_qpn;
 
 	ft->t = mlx5_create_flow_table(priv->fs.ns, &ft_attr);
 	if (IS_ERR(ft->t)) {
···
 		priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
 	}
 
-	err = mlx5e_create_ttc_table(priv, 0);
+	err = mlx5e_create_ttc_table(priv);
 	if (err) {
 		netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
 			   err);

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

···
 	new_channels.params = priv->channels.params;
 	new_channels.params.num_tc = tc ? tc : 1;
 
-	if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
+	if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
 		priv->channels.params = new_channels.params;
 		goto out;
 	}

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

···
 #include "eswitch.h"
 
 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
-			    struct mlx5_flow_table *ft)
+			    struct mlx5_flow_table *ft, u32 underlay_qpn)
 {
 	u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)]   = {0};
 	u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {0};
 
 	if ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) &&
-	    ft->underlay_qpn == 0)
+	    underlay_qpn == 0)
 		return 0;
 
 	MLX5_SET(set_flow_table_root_in, in, opcode,
 		 MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
 	MLX5_SET(set_flow_table_root_in, in, table_type, ft->type);
 	MLX5_SET(set_flow_table_root_in, in, table_id, ft->id);
+	MLX5_SET(set_flow_table_root_in, in, underlay_qpn, underlay_qpn);
 	if (ft->vport) {
 		MLX5_SET(set_flow_table_root_in, in, vport_number, ft->vport);
 		MLX5_SET(set_flow_table_root_in, in, other_vport, 1);
 	}
-
-	if ((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_IB) &&
-	    ft->underlay_qpn != 0)
-		MLX5_SET(set_flow_table_root_in, in, underlay_qpn, ft->underlay_qpn);
 
 	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 }

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

···
 			unsigned int index);
 
 int mlx5_cmd_update_root_ft(struct mlx5_core_dev *dev,
-			    struct mlx5_flow_table *ft);
+			    struct mlx5_flow_table *ft,
+			    u32 underlay_qpn);
 
 int mlx5_cmd_fc_alloc(struct mlx5_core_dev *dev, u16 *id);
 int mlx5_cmd_fc_free(struct mlx5_core_dev *dev, u16 id);

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

···
 	if (ft->level >= min_level)
 		return 0;
 
-	err = mlx5_cmd_update_root_ft(root->dev, ft);
+	err = mlx5_cmd_update_root_ft(root->dev, ft, root->underlay_qpn);
 	if (err)
 		mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n",
 			       ft->id);
···
 		err = -ENOMEM;
 		goto unlock_root;
 	}
-
-	ft->underlay_qpn = ft_attr->underlay_qpn;
 
 	tree_init_node(&ft->node, 1, del_flow_table);
 	log_table_sz = ft->max_fte ? ilog2(ft->max_fte) : 0;
···
 
 	new_root_ft = find_next_ft(ft);
 	if (new_root_ft) {
-		int err = mlx5_cmd_update_root_ft(root->dev, new_root_ft);
+		int err = mlx5_cmd_update_root_ft(root->dev, new_root_ft,
+						  root->underlay_qpn);
 
 		if (err) {
 			mlx5_core_warn(root->dev, "Update root flow table of id=%u failed\n",
···
 	mlx5_cleanup_fs(dev);
 	return err;
 }
+
+int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn)
+{
+	struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns;
+
+	root->underlay_qpn = underlay_qpn;
+	return 0;
+}
+EXPORT_SYMBOL(mlx5_fs_add_rx_underlay_qpn);
+
+int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn)
+{
+	struct mlx5_flow_root_namespace *root = dev->priv.steering->root_ns;
+
+	root->underlay_qpn = 0;
+	return 0;
+}
+EXPORT_SYMBOL(mlx5_fs_remove_rx_underlay_qpn);

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

···
 	/* FWD rules that point on this flow table */
 	struct list_head		fwd_rules;
 	u32				flags;
-	u32				underlay_qpn;
 };
 
 struct mlx5_fc_cache {
···
 	struct mlx5_flow_table		*root_ft;
 	/* Should be held when chaining flow tables */
 	struct mutex			chain_lock;
+	u32				underlay_qpn;
 };
 
 int mlx5_init_fc_stats(struct mlx5_core_dev *dev);

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

···
 
 	mlx5e_build_nic_params(mdev, &priv->channels.params, profile->max_nch(mdev));
 
+	/* Override RQ params as IPoIB supports only LINKED LIST RQ for now */
+	mlx5e_set_rq_type_params(mdev, &priv->channels.params, MLX5_WQ_TYPE_LINKED_LIST);
+	priv->channels.params.lro_en = false;
+
 	mutex_init(&priv->state_lock);
 
 	netdev->hw_features    |= NETIF_F_SG;
···
 
 static void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp)
 {
+	mlx5_fs_remove_rx_underlay_qpn(mdev, qp->qpn);
+
 	mlx5_core_destroy_qp(mdev, qp);
 }
 
···
 		mlx5_core_warn(priv->mdev, "create underlay QP failed, %d\n", err);
 		return err;
 	}
+
+	mlx5_fs_add_rx_underlay_qpn(priv->mdev, ipriv->qp.qpn);
 
 	err = mlx5e_create_tis(priv->mdev, 0 /* tc */, ipriv->qp.qpn, &priv->tisn[0]);
 	if (err) {
···
 
 static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
 {
-	struct mlx5i_priv *ipriv = priv->ppriv;
 	int err;
 
 	priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
···
 		priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
 	}
 
-	err = mlx5e_create_ttc_table(priv, ipriv->qp.qpn);
+	err = mlx5e_create_ttc_table(priv);
 	if (err) {
 		netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
 			   err);

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

···
 
 	entry->counter_valid = false;
 	entry->counter = 0;
+	entry->index = mlxsw_sp_rif_index(rif);
+
 	if (!counters_enabled)
 		return 0;
 
-	entry->index = mlxsw_sp_rif_index(rif);
 	err = mlxsw_sp_rif_counter_value_get(mlxsw_sp, rif,
 					     MLXSW_SP_RIF_COUNTER_EGRESS,
 					     &cnt);

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

···
 {
 	unsigned int *p_counter_index;
 
+	if (!mlxsw_sp_rif_counter_valid_get(rif, dir))
+		return;
+
 	p_counter_index = mlxsw_sp_rif_p_counter_get(rif, dir);
 	if (WARN_ON(!p_counter_index))
 		return;

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

···
 	err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
 				      adding, true);
 	if (err) {
-		if (net_ratelimit())
-			netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
+		dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
 		return;
 	}
 
···
 	err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
 					  adding, true);
 	if (err) {
-		if (net_ratelimit())
-			netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
+		dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
 		return;
 	}
 

drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c

···
 	cmd.req.arg3 = 0;
 
 	if (recv_ctx->state == NX_HOST_CTX_STATE_ACTIVE)
-		netxen_issue_cmd(adapter, &cmd);
+		rcode = netxen_issue_cmd(adapter, &cmd);
 
 	if (rcode != NX_RCODE_SUCCESS)
 		return -EIO;

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

···
 	memset(&camline, 0, sizeof(union gft_cam_line_union));
 	qed_wr(p_hwfn, p_ptt, PRS_REG_GFT_CAM + CAM_LINE_SIZE * pf_id,
 	       camline.cam_line_mapped.camline);
-	memset(&ramline, 0, sizeof(union gft_cam_line_union));
+	memset(&ramline, 0, sizeof(ramline));
 
 	for (i = 0; i < RAM_LINE_SIZE / REG_SIZE; i++) {
 		u32 hw_addr = PRS_REG_GFT_PROFILE_MASK_RAM;

drivers/net/ethernet/qlogic/qlcnic/qlcnic.h

···
 
 #define _QLCNIC_LINUX_MAJOR 5
 #define _QLCNIC_LINUX_MINOR 3
-#define _QLCNIC_LINUX_SUBVERSION 65
-#define QLCNIC_LINUX_VERSIONID  "5.3.65"
+#define _QLCNIC_LINUX_SUBVERSION 66
+#define QLCNIC_LINUX_VERSIONID  "5.3.66"
 #define QLCNIC_DRV_IDC_VER  0x01
 #define QLCNIC_DRIVER_VERSION  ((_QLCNIC_LINUX_MAJOR << 16) |\
 		 (_QLCNIC_LINUX_MINOR << 8) | (_QLCNIC_LINUX_SUBVERSION))

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c

···
 	return 0;
 }
 
+void qlcnic_83xx_get_port_type(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct qlcnic_cmd_args cmd;
+	u32 config;
+	int err;
+
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_STATUS);
+	if (err)
+		return;
+
+	err = qlcnic_issue_cmd(adapter, &cmd);
+	if (err) {
+		dev_info(&adapter->pdev->dev,
+			 "Get Link Status Command failed: 0x%x\n", err);
+		goto out;
+	} else {
+		config = cmd.rsp.arg[3];
+
+		switch (QLC_83XX_SFP_MODULE_TYPE(config)) {
+		case QLC_83XX_MODULE_FIBRE_1000BASE_SX:
+		case QLC_83XX_MODULE_FIBRE_1000BASE_LX:
+		case QLC_83XX_MODULE_FIBRE_1000BASE_CX:
+		case QLC_83XX_MODULE_TP_1000BASE_T:
+			ahw->port_type = QLCNIC_GBE;
+			break;
+		default:
+			ahw->port_type = QLCNIC_XGBE;
+		}
+	}
+out:
+	qlcnic_free_mbx_args(&cmd);
+}
+
 int qlcnic_83xx_test_link(struct qlcnic_adapter *adapter)
 {
 	u8 pci_func;

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h

···
 int qlcnic_83xx_set_pauseparam(struct qlcnic_adapter *,
 			       struct ethtool_pauseparam *);
 int qlcnic_83xx_test_link(struct qlcnic_adapter *);
+void qlcnic_83xx_get_port_type(struct qlcnic_adapter *adapter);
 int qlcnic_83xx_reg_test(struct qlcnic_adapter *);
 int qlcnic_83xx_get_regs_len(struct qlcnic_adapter *);
 int qlcnic_83xx_get_registers(struct qlcnic_adapter *, u32 *);

drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c

···
 	u32 ret = 0;
 	struct qlcnic_adapter *adapter = netdev_priv(dev);
 
+	if (qlcnic_83xx_check(adapter))
+		qlcnic_83xx_get_port_type(adapter);
+
 	if (adapter->ahw->port_type != QLCNIC_GBE)
 		return -EOPNOTSUPP;
 

drivers/net/ethernet/qualcomm/qca_spi.c

···
 
 	/* Allocate rx SKB if we don't have one available. */
 	if (!qca->rx_skb) {
-		qca->rx_skb = netdev_alloc_skb(net_dev,
-					       net_dev->mtu + VLAN_ETH_HLEN);
+		qca->rx_skb = netdev_alloc_skb_ip_align(net_dev,
+							net_dev->mtu +
+							VLAN_ETH_HLEN);
 		if (!qca->rx_skb) {
 			netdev_dbg(net_dev, "out of RX resources\n");
 			qca->stats.out_of_mem++;
···
 					qca->rx_skb, qca->rx_skb->dev);
 				qca->rx_skb->ip_summed = CHECKSUM_UNNECESSARY;
 				netif_rx_ni(qca->rx_skb);
-				qca->rx_skb = netdev_alloc_skb(net_dev,
+				qca->rx_skb = netdev_alloc_skb_ip_align(net_dev,
 					net_dev->mtu + VLAN_ETH_HLEN);
 				if (!qca->rx_skb) {
 					netdev_dbg(net_dev, "out of RX resources\n");
···
 	if (!qca->rx_buffer)
 		return -ENOBUFS;
 
-	qca->rx_skb = netdev_alloc_skb(dev, qca->net_dev->mtu + VLAN_ETH_HLEN);
+	qca->rx_skb = netdev_alloc_skb_ip_align(dev, qca->net_dev->mtu +
+						VLAN_ETH_HLEN);
 	if (!qca->rx_skb) {
 		kfree(qca->rx_buffer);
 		netdev_info(qca->net_dev, "Failed to allocate RX sk_buff.\n");

drivers/net/ethernet/renesas/sh_eth.c

···
 	/* MDIO bus init */
 	ret = sh_mdio_init(mdp, pd);
 	if (ret) {
-		dev_err(&ndev->dev, "failed to initialise MDIO\n");
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "MDIO init failed: %d\n", ret);
 		goto out_release;
 	}
 

drivers/net/ethernet/sfc/nic.h

···
 #include "mcdi.h"
 
 enum {
-	EFX_REV_SIENA_A0 = 0,
-	EFX_REV_HUNT_A0 = 1,
+	/* Revisions 0-2 were Falcon A0, A1 and B0 respectively.
+	 * They are not supported by this driver but these revision numbers
+	 * form part of the ethtool API for register dumping.
+	 */
+	EFX_REV_SIENA_A0 = 3,
+	EFX_REV_HUNT_A0 = 4,
 };
 
 static inline int efx_nic_rev(struct efx_nic *efx)

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

···
 			ep++;
 		} else {
 			seq_printf(seq, "%d [0x%x]: 0x%x 0x%x 0x%x 0x%x\n",
-				   i, (unsigned int)virt_to_phys(ep),
+				   i, (unsigned int)virt_to_phys(p),
 				   le32_to_cpu(p->des0), le32_to_cpu(p->des1),
 				   le32_to_cpu(p->des2), le32_to_cpu(p->des3));
 			p++;

drivers/net/ethernet/sun/ldmvsw.c

···
 
 	if (port) {
 		del_timer_sync(&port->vio.timer);
+		del_timer_sync(&port->clean_timer);
 
 		napi_disable(&port->napi);
+		unregister_netdev(port->dev);
 
 		list_del_rcu(&port->list);
 
 		synchronize_rcu();
-		del_timer_sync(&port->clean_timer);
 		spin_lock_irqsave(&port->vp->lock, flags);
 		sunvnet_port_rm_txq_common(port);
 		spin_unlock_irqrestore(&port->vp->lock, flags);
···
 
 		dev_set_drvdata(&vdev->dev, NULL);
 
-		unregister_netdev(port->dev);
 		free_netdev(port->dev);
 	}
 

drivers/net/ethernet/ti/netcp_core.c

···
 
 	tx_pipe->dma_channel = knav_dma_open_channel(dev,
 				tx_pipe->dma_chan_name, &config);
-	if (IS_ERR_OR_NULL(tx_pipe->dma_channel)) {
+	if (IS_ERR(tx_pipe->dma_channel)) {
 		dev_err(dev, "failed opening tx chan(%s)\n",
 			tx_pipe->dma_chan_name);
+		ret = PTR_ERR(tx_pipe->dma_channel);
 		goto err;
 	}
 
···
 
 	netcp->rx_channel = knav_dma_open_channel(netcp->netcp_device->device,
 					netcp->dma_chan_name, &config);
-	if (IS_ERR_OR_NULL(netcp->rx_channel)) {
+	if (IS_ERR(netcp->rx_channel)) {
 		dev_err(netcp->ndev_dev, "failed opening rx chan(%s\n",
 			netcp->dma_chan_name);
+		ret = PTR_ERR(netcp->rx_channel);
 		goto fail;
 	}
 

drivers/net/ethernet/ti/netcp_ethss.c

···
 	case HWTSTAMP_FILTER_NONE:
 		cpts_rx_enable(cpts, 0);
 		break;
-	case HWTSTAMP_FILTER_ALL:
 	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
 	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:

drivers/net/irda/irda-usb.c

···
          * are "42101001.sb" or "42101002.sb"
          */
         sprintf(stir421x_fw_name, "4210%4X.sb",
-                self->usbdev->descriptor.bcdDevice);
+		le16_to_cpu(self->usbdev->descriptor.bcdDevice));
         ret = request_firmware(&fw, stir421x_fw_name, &self->usbdev->dev);
         if (ret < 0)
                 return ret;

drivers/net/macvlan.c

···
  */
 static struct lock_class_key macvlan_netdev_addr_lock_key;
 
-#define ALWAYS_ON_FEATURES \
-	(NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_GSO_SOFTWARE | NETIF_F_LLTX | \
+#define ALWAYS_ON_OFFLOADS \
+	(NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_GSO_SOFTWARE | \
 	 NETIF_F_GSO_ROBUST)
+
+#define ALWAYS_ON_FEATURES (ALWAYS_ON_OFFLOADS | NETIF_F_LLTX)
 
 #define MACVLAN_FEATURES \
 	(NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | \
···
 	dev->features		|= ALWAYS_ON_FEATURES;
 	dev->hw_features	|= NETIF_F_LRO;
 	dev->vlan_features	= lowerdev->vlan_features & MACVLAN_FEATURES;
+	dev->vlan_features	|= ALWAYS_ON_OFFLOADS;
 	dev->gso_max_size	= lowerdev->gso_max_size;
 	dev->gso_max_segs	= lowerdev->gso_max_segs;
 	dev->hard_header_len	= lowerdev->hard_header_len;

drivers/net/phy/mdio-mux.c

···
 	pb = devm_kzalloc(dev, sizeof(*pb), GFP_KERNEL);
 	if (pb == NULL) {
 		ret_val = -ENOMEM;
-		goto err_parent_bus;
+		goto err_pb_kz;
 	}
-
 
 	pb->switch_data = data;
 	pb->switch_fn = switch_fn;
···
 		cb->mii_bus = mdiobus_alloc();
 		if (!cb->mii_bus) {
 			ret_val = -ENOMEM;
+			devm_kfree(dev, cb);
 			of_node_put(child_bus_node);
 			break;
 		}
···
 			mdiobus_free(cb->mii_bus);
 			devm_kfree(dev, cb);
 		} else {
-			of_node_get(child_bus_node);
 			cb->next = pb->children;
 			pb->children = cb;
 		}
···
 		return 0;
 	}
 
+	devm_kfree(dev, pb);
+err_pb_kz:
 	/* balance the reference of_mdio_find_bus() took */
-	put_device(&pb->mii_bus->dev);
-
+	if (!mux_bus)
+		put_device(&parent_bus->dev);
 err_parent_bus:
 	of_node_put(parent_bus_node);
 	return ret_val;

drivers/net/phy/mdio_bus.c

···
 
 	mutex_init(&bus->mdio_lock);
 
-	if (bus->reset)
-		bus->reset(bus);
-
 	/* de-assert bus level PHY GPIO resets */
 	if (bus->num_reset_gpios > 0) {
 		bus->reset_gpiod = devm_kcalloc(&bus->dev,
···
 			gpiod_set_value_cansleep(gpiod, 0);
 		}
 	}
+
+	if (bus->reset)
+		bus->reset(bus);
 
 	for (i = 0; i < PHY_MAX_ADDR; i++) {
 		if ((bus->phy_mask & (1 << i)) == 0) {

drivers/net/usb/ch9200.c

···
 	int rd_mac_len = 0;
 
 	netdev_dbg(dev->net, "get_mac_address:\n\tusbnet VID:%0x PID:%0x\n",
-		   dev->udev->descriptor.idVendor,
-		   dev->udev->descriptor.idProduct);
+		   le16_to_cpu(dev->udev->descriptor.idVendor),
+		   le16_to_cpu(dev->udev->descriptor.idProduct));
 
 	memset(mac_addr, 0, sizeof(mac_addr));
 	rd_mac_len = control_read(dev, REQUEST_READ, 0,

drivers/net/usb/qmi_wwan.c

···
 	{QMI_FIXED_INTF(0x1199, 0x9071, 10)},	/* Sierra Wireless MC74xx */
 	{QMI_FIXED_INTF(0x1199, 0x9079, 8)},	/* Sierra Wireless EM74xx */
 	{QMI_FIXED_INTF(0x1199, 0x9079, 10)},	/* Sierra Wireless EM74xx */
+	{QMI_FIXED_INTF(0x1199, 0x907b, 8)},	/* Sierra Wireless EM74xx */
+	{QMI_FIXED_INTF(0x1199, 0x907b, 10)},	/* Sierra Wireless EM74xx */
 	{QMI_FIXED_INTF(0x1bbb, 0x011e, 4)},	/* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
 	{QMI_FIXED_INTF(0x1bbb, 0x0203, 2)},	/* Alcatel L800MA */
 	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */

drivers/net/vmxnet3/vmxnet3_drv.c

···
 	/* we need to enable NAPI, otherwise dev_close will deadlock */
 	for (i = 0; i < adapter->num_rx_queues; i++)
 		napi_enable(&adapter->rx_queue[i].napi);
+	/*
+	 * Need to clear the quiesce bit to ensure that vmxnet3_close
+	 * can quiesce the device properly
+	 */
+	clear_bit(VMXNET3_STATE_BIT_QUIESCED, &adapter->state);
 	dev_close(adapter->netdev);
 }
 

drivers/net/vrf.c

···
 
 static int vrf_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
+	kfree_skb(skb);
 	return 0;
 }
 
···
 {
 	struct net *net = dev_net(dev);
 
-	if (NF_HOOK(pf, hook, net, NULL, skb, dev, NULL, vrf_rcv_finish) < 0)
+	if (nf_hook(pf, hook, net, NULL, skb, dev, NULL, vrf_rcv_finish) != 1)
 		skb = NULL;    /* kfree_skb(skb) handled by nf code */
 
 	return skb;

drivers/net/xen-netfront.c

···
 	xennet_disconnect_backend(info);
 	xennet_destroy_queues(info);
  out:
-	unregister_netdev(info->netdev);
-	xennet_free_netdev(info->netdev);
+	device_unregister(&dev->dev);
 	return err;
 }
 

drivers/nvme/host/fc.c

···
 	dev_info(ctrl->ctrl.device,
 		"NVME-FC{%d}: resetting controller\n", ctrl->cnum);
 
+	/* stop the queues on error, cleanup is in reset thread */
+	if (ctrl->queue_count > 1)
+		nvme_stop_queues(&ctrl->ctrl);
+
 	if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) {
 		dev_err(ctrl->ctrl.device,
 			"NVME-FC{%d}: error_recovery: Couldn't change state "
···
 	struct nvme_fc_ctrl *ctrl;
 	unsigned long flags;
 	int ret, idx;
+
+	if (!(rport->remoteport.port_role &
+	    (FC_PORT_ROLE_NVME_DISCOVERY | FC_PORT_ROLE_NVME_TARGET))) {
+		ret = -EBADR;
+		goto out_fail;
+	}
 
 	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
 	if (!ctrl) {

drivers/nvme/host/pci.c

···
 	if (dev->cmb) {
 		iounmap(dev->cmb);
 		dev->cmb = NULL;
+		if (dev->cmbsz) {
+			sysfs_remove_file_from_group(&dev->ctrl.device->kobj,
+						     &dev_attr_cmb.attr, NULL);
+			dev->cmbsz = 0;
+		}
 	}
 }
 
···
 {
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
 
+	nvme_release_cmb(dev);
 	pci_free_irq_vectors(pdev);
 
 	if (pci_is_enabled(pdev)) {
···
 	nvme_dev_disable(dev, true);
 	nvme_dev_remove_admin(dev);
 	nvme_free_queues(dev, 0);
-	nvme_release_cmb(dev);
 	nvme_release_prp_pools(dev);
 	nvme_dev_unmap(dev);
 	nvme_put_ctrl(&dev->ctrl);

drivers/nvme/target/core.c

···
 }
 EXPORT_SYMBOL_GPL(nvmet_req_init);
 
+void nvmet_req_uninit(struct nvmet_req *req)
+{
+	percpu_ref_put(&req->sq->ref);
+}
+EXPORT_SYMBOL_GPL(nvmet_req_uninit);
+
 static inline bool nvmet_cc_en(u32 cc)
 {
 	return cc & 0x1;

drivers/nvme/target/fc.c

···
 {
 	int cpu, idx, cnt;
 
-	if (!(tgtport->ops->target_features &
-			NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED) ||
-	    tgtport->ops->max_hw_queues == 1)
+	if (tgtport->ops->max_hw_queues == 1)
 		return WORK_CPU_UNBOUND;
 
 	/* Simple cpu selection based on qid modulo active cpu count */

drivers/nvme/target/fcloop.c

···
 	.dma_boundary		= FCLOOP_DMABOUND_4G,
 	/* optional features */
 	.target_features	= NVMET_FCTGTFEAT_CMD_IN_ISR |
-				  NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED |
 				  NVMET_FCTGTFEAT_OPDONE_IN_ISR,
 	/* sizes of additional private data for data structures */
 	.target_priv_sz		= sizeof(struct fcloop_tport),

drivers/nvme/target/nvmet.h

···
 
 bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
 		struct nvmet_sq *sq, struct nvmet_fabrics_ops *ops);
+void nvmet_req_uninit(struct nvmet_req *req);
 void nvmet_req_complete(struct nvmet_req *req, u16 status);
 
 void nvmet_cq_setup(struct nvmet_ctrl *ctrl, struct nvmet_cq *cq, u16 qid,

drivers/nvme/target/rdma.c

···
 	rsp->n_rdma = 0;
 
 	if (unlikely(wc->status != IB_WC_SUCCESS)) {
+		nvmet_req_uninit(&rsp->req);
 		nvmet_rdma_release_rsp(rsp);
 		if (wc->status != IB_WC_WR_FLUSH_ERR) {
 			pr_info("RDMA READ for CQE 0x%p failed with status %s (%d).\n",

drivers/of/fdt.c

···
 
 	/* Allocate memory for the expanded device tree */
 	mem = dt_alloc(size + 4, __alignof__(struct device_node));
+	if (!mem)
+		return NULL;
+
 	memset(mem, 0, size);
 
 	*(__be32 *)(mem + size) = cpu_to_be32(0xdeadbeef);

drivers/of/of_reserved_mem.c

···
 	const struct of_device_id *i;
 
 	for (i = __reservedmem_of_table; i < &__rmem_of_table_sentinel; i++) {
-		int const (*initfn)(struct reserved_mem *rmem) = i->data;
+		reservedmem_of_init_fn initfn = i->data;
 		const char *compat = i->compatible;
 
 		if (!of_flat_dt_is_compatible(rmem->fdt_node, compat))

drivers/s390/cio/ccwgroup.c

···
 static void __ccwgroup_remove_symlinks(struct ccwgroup_device *gdev)
 {
 	int i;
-	char str[8];
+	char str[16];
 
 	for (i = 0; i < gdev->count; i++) {
 		sprintf(str, "cdev%d", i);
···
 
 static int __ccwgroup_create_symlinks(struct ccwgroup_device *gdev)
 {
-	char str[8];
+	char str[16];
 	int i, rc;
 
 	for (i = 0; i < gdev->count; i++) {

drivers/s390/cio/qdio_debug.h

···
 #include "qdio.h"
 
 /* that gives us 15 characters in the text event views */
-#define QDIO_DBF_LEN	16
+#define QDIO_DBF_LEN	32
 
 extern debug_info_t *qdio_dbf_setup;
 extern debug_info_t *qdio_dbf_error;

drivers/s390/net/qeth_core.h

···
 };
 
 struct qeth_discipline {
+	const struct device_type *devtype;
 	void (*start_poll)(struct ccw_device *, int, unsigned long);
 	qdio_handler_t *input_handler;
 	qdio_handler_t *output_handler;
···
 extern struct qeth_discipline qeth_l3_discipline;
 extern const struct attribute_group *qeth_generic_attr_groups[];
 extern const struct attribute_group *qeth_osn_attr_groups[];
+extern const struct attribute_group qeth_device_attr_group;
+extern const struct attribute_group qeth_device_blkt_group;
+extern const struct device_type qeth_generic_devtype;
 extern struct workqueue_struct *qeth_wq;
 
 int qeth_card_hw_is_reachable(struct qeth_card *);

drivers/s390/net/qeth_core_main.c

···
 	card->discipline = NULL;
 }
 
-static const struct device_type qeth_generic_devtype = {
+const struct device_type qeth_generic_devtype = {
 	.name = "qeth_generic",
 	.groups = qeth_generic_attr_groups,
 };
+EXPORT_SYMBOL_GPL(qeth_generic_devtype);
+
 static const struct device_type qeth_osn_devtype = {
 	.name = "qeth_osn",
 	.groups = qeth_osn_attr_groups,
···
 		goto err_card;
 	}
 
-	if (card->info.type == QETH_CARD_TYPE_OSN)
-		gdev->dev.type = &qeth_osn_devtype;
-	else
-		gdev->dev.type = &qeth_generic_devtype;
-
 	switch (card->info.type) {
 	case QETH_CARD_TYPE_OSN:
 	case QETH_CARD_TYPE_OSM:
 		rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
 		if (rc)
 			goto err_card;
+
+		gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN)
+					? card->discipline->devtype
+					: &qeth_osn_devtype;
 		rc = card->discipline->setup(card->gdev);
 		if (rc)
 			goto err_disc;
-	case QETH_CARD_TYPE_OSD:
-	case QETH_CARD_TYPE_OSX:
+		break;
 	default:
+		gdev->dev.type = &qeth_generic_devtype;
 		break;
 	}
 
···
 		if (rc)
 			goto err;
 		rc = card->discipline->setup(card->gdev);
-		if (rc)
+		if (rc) {
+			qeth_core_free_discipline(card);
 			goto err;
+		}
 	}
 	rc = card->discipline->set_online(gdev);
 err:

drivers/s390/net/qeth_core_sys.c

···
 
 	if (card->options.layer2 == newdis)
 		goto out;
-	else {
-		card->info.mac_bits  = 0;
-		if (card->discipline) {
-			card->discipline->remove(card->gdev);
-			qeth_core_free_discipline(card);
-		}
+	if (card->info.type == QETH_CARD_TYPE_OSM) {
+		/* fixed layer, can't switch */
+		rc = -EOPNOTSUPP;
+		goto out;
+	}
+
+	card->info.mac_bits = 0;
+	if (card->discipline) {
+		card->discipline->remove(card->gdev);
+		qeth_core_free_discipline(card);
 	}
 
 	rc = qeth_core_load_discipline(card, newdis);
···
 		goto out;
 
 	rc = card->discipline->setup(card->gdev);
+	if (rc)
+		qeth_core_free_discipline(card);
 out:
 	mutex_unlock(&card->discipline_mutex);
 	return rc ? rc : count;
···
 	&dev_attr_inter_jumbo.attr,
 	NULL,
 };
-static struct attribute_group qeth_device_blkt_group = {
+const struct attribute_group qeth_device_blkt_group = {
 	.name = "blkt",
 	.attrs = qeth_blkt_device_attrs,
 };
+EXPORT_SYMBOL_GPL(qeth_device_blkt_group);
 
 static struct attribute *qeth_device_attrs[] = {
 	&dev_attr_state.attr,
···
 	&dev_attr_switch_attrs.attr,
 	NULL,
 };
-static struct attribute_group qeth_device_attr_group = {
+const struct attribute_group qeth_device_attr_group = {
 	.attrs = qeth_device_attrs,
 };
+EXPORT_SYMBOL_GPL(qeth_device_attr_group);
 
 const struct attribute_group *qeth_generic_attr_groups[] = {
 	&qeth_device_attr_group,

drivers/s390/net/qeth_l2.h

···
 
 #include "qeth_core.h"
 
+extern const struct attribute_group *qeth_l2_attr_groups[];
+
 int qeth_l2_create_device_attributes(struct device *);
 void qeth_l2_remove_device_attributes(struct device *);
 void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card);

drivers/s390/net/qeth_l2_main.c

···
 	return 0;
 }
 
+static const struct device_type qeth_l2_devtype = {
+	.name = "qeth_layer2",
+	.groups = qeth_l2_attr_groups,
+};
+
 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc;
 
-	qeth_l2_create_device_attributes(&gdev->dev);
+	if (gdev->dev.type == &qeth_generic_devtype) {
+		rc = qeth_l2_create_device_attributes(&gdev->dev);
+		if (rc)
+			return rc;
+	}
 	INIT_LIST_HEAD(&card->vid_list);
 	hash_init(card->mac_htable);
 	card->options.layer2 = 1;
···
 {
 	struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
 
-	qeth_l2_remove_device_attributes(&cgdev->dev);
+	if (cgdev->dev.type == &qeth_generic_devtype)
+		qeth_l2_remove_device_attributes(&cgdev->dev);
 	qeth_set_allowed_threads(card, 0, 1);
 	wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
 
···
 	case QETH_CARD_TYPE_OSN:
 		card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
 					 ether_setup);
-		card->dev->flags |= IFF_NOARP;
 		break;
 	default:
 		card->dev = alloc_etherdev(0);
···
 	card->dev->min_mtu = 64;
 	card->dev->max_mtu = ETH_MAX_MTU;
 	card->dev->netdev_ops = &qeth_l2_netdev_ops;
-	card->dev->ethtool_ops =
-		(card->info.type != QETH_CARD_TYPE_OSN) ?
-		&qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
+	if (card->info.type == QETH_CARD_TYPE_OSN) {
+		card->dev->ethtool_ops = &qeth_l2_osn_ops;
+		card->dev->flags |= IFF_NOARP;
+	} else {
+		card->dev->ethtool_ops = &qeth_l2_ethtool_ops;
+	}
 	card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 	if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
 		card->dev->hw_features = NETIF_F_SG;
···
 }
 
 struct qeth_discipline qeth_l2_discipline = {
+	.devtype = &qeth_l2_devtype,
 	.start_poll = qeth_qdio_start_poll,
 	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
 	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,

drivers/s390/net/qeth_l2_sys.c

···
 	} else
 		qeth_bridgeport_an_set(card, 0);
 }
+
+const struct attribute_group *qeth_l2_attr_groups[] = {
+	&qeth_device_attr_group,
+	&qeth_device_blkt_group,
+	/* l2 specific, see l2_{create,remove}_device_attributes(): */
+	&qeth_l2_bridgeport_attr_group,
+	NULL,
+};

drivers/s390/net/qeth_l3_main.c

···
 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc;
 
-	qeth_l3_create_device_attributes(&gdev->dev);
+	rc = qeth_l3_create_device_attributes(&gdev->dev);
+	if (rc)
+		return rc;
+	hash_init(card->ip_htable);
+	hash_init(card->ip_mc_htable);
 	card->options.layer2 = 0;
 	card->info.hwtrap = 0;
 	return 0;
···
 }
 
 struct qeth_discipline qeth_l3_discipline = {
+	.devtype = &qeth_generic_devtype,
 	.start_poll = qeth_qdio_start_poll,
 	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
 	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,

drivers/s390/virtio/virtio_ccw.c

···
 } __packed;
 
 struct virtio_feature_desc {
-	__u32 features;
+	__le32 features;
 	__u8 index;
 } __packed;
 

drivers/scsi/cxlflash/Kconfig

···
 config CXLFLASH
 	tristate "Support for IBM CAPI Flash"
 	depends on PCI && SCSI && CXL && EEH
+	select IRQ_POLL
 	default m
 	help
 	  Allows CAPI Accelerated IO to Flash

drivers/scsi/libfc/fc_fcp.c

···
  * can_queue. Eventually we will hit the point where we run
  * on all reserved structs.
  */
-static void fc_fcp_can_queue_ramp_down(struct fc_lport *lport)
+static bool fc_fcp_can_queue_ramp_down(struct fc_lport *lport)
 {
 	struct fc_fcp_internal *si = fc_get_scsi_internal(lport);
 	unsigned long flags;
 	int can_queue;
+	bool changed = false;
 
 	spin_lock_irqsave(lport->host->host_lock, flags);
 
···
 	if (!can_queue)
 		can_queue = 1;
 	lport->host->can_queue = can_queue;
+	changed = true;
 
 unlock:
 	spin_unlock_irqrestore(lport->host->host_lock, flags);
+	return changed;
 }
 
 /*
···
 
 	if (!fc_fcp_lport_queue_ready(lport)) {
 		if (lport->qfull) {
-			fc_fcp_can_queue_ramp_down(lport);
-			shost_printk(KERN_ERR, lport->host,
-				     "libfc: queue full, "
-				     "reducing can_queue to %d.\n",
-				     lport->host->can_queue);
+			if (fc_fcp_can_queue_ramp_down(lport))
+				shost_printk(KERN_ERR, lport->host,
+					     "libfc: queue full, "
+					     "reducing can_queue to %d.\n",
+					     lport->host->can_queue);
 		}
 		rc = SCSI_MLQUEUE_HOST_BUSY;
 		goto out;

drivers/scsi/lpfc/lpfc_crtn.h

···
 void lpfc_reset_barrier(struct lpfc_hba *);
 int lpfc_sli_brdready(struct lpfc_hba *, uint32_t);
 int lpfc_sli_brdkill(struct lpfc_hba *);
+int lpfc_sli_chipset_init(struct lpfc_hba *phba);
 int lpfc_sli_brdreset(struct lpfc_hba *);
 int lpfc_sli_brdrestart(struct lpfc_hba *);
 int lpfc_sli_hba_setup(struct lpfc_hba *);

drivers/scsi/lpfc/lpfc_ct.c

···
 						NLP_EVT_DEVICE_RECOVERY);
 			spin_lock_irq(shost->host_lock);
 			ndlp->nlp_flag &= ~NLP_NVMET_RECOV;
-			spin_lock_irq(shost->host_lock);
+			spin_unlock_irq(shost->host_lock);
 		}
 	}
 

drivers/scsi/lpfc/lpfc_init.c

···
 	LPFC_MBOXQ_t *mboxq;
 	MAILBOX_t *mb;
 
+	if (phba->sli_rev < LPFC_SLI_REV4) {
+		/* Reset the port first */
+		lpfc_sli_brdrestart(phba);
+		rc = lpfc_sli_chipset_init(phba);
+		if (rc)
+			return (uint64_t)-1;
+	}
 
 	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
 						GFP_KERNEL);
···
 		lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
 
 	/* Unset ELS work queue */
-	if (phba->sli4_hba.els_cq)
+	if (phba->sli4_hba.els_wq)
 		lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
 
 	/* Unset unsolicited receive queue */

drivers/scsi/lpfc/lpfc_nvmet.c

···
 	lpfc_tgttemplate.max_sgl_segments = phba->cfg_nvme_seg_cnt + 1;
 	lpfc_tgttemplate.max_hw_queues = phba->cfg_nvme_io_channel;
 	lpfc_tgttemplate.target_features = NVMET_FCTGTFEAT_READDATA_RSP |
-					   NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED |
 					   NVMET_FCTGTFEAT_CMD_IN_ISR |
 					   NVMET_FCTGTFEAT_OPDONE_IN_ISR;
 

drivers/scsi/lpfc/lpfc_sli.c

···
 	/* Reset HBA */
 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
 			"0325 Reset HBA Data: x%x x%x\n",
-			phba->pport->port_state, psli->sli_flag);
+			(phba->pport) ? phba->pport->port_state : 0,
+			psli->sli_flag);
 
 	/* perform board reset */
 	phba->fc_eventTag = 0;
 	phba->link_events = 0;
-	phba->pport->fc_myDID = 0;
-	phba->pport->fc_prevDID = 0;
+	if (phba->pport) {
+		phba->pport->fc_myDID = 0;
+		phba->pport->fc_prevDID = 0;
+	}
 
 	/* Turn off parity checking and serr during the physical reset */
 	pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
···
 	/* Restart HBA */
 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
 			"0337 Restart HBA Data: x%x x%x\n",
-			phba->pport->port_state, psli->sli_flag);
+			(phba->pport) ? phba->pport->port_state : 0,
+			psli->sli_flag);
 
 	word0 = 0;
 	mb = (MAILBOX_t *) &word0;
···
 	readl(to_slim); /* flush */
 
 	/* Only skip post after fc_ffinit is completed */
-	if (phba->pport->port_state)
+	if (phba->pport && phba->pport->port_state)
 		word0 = 1;	/* This is really setting up word1 */
 	else
 		word0 = 0;	/* This is really setting up word1 */
···
 	readl(to_slim); /* flush */
 
 	lpfc_sli_brdreset(phba);
-	phba->pport->stopped = 0;
+	if (phba->pport)
+		phba->pport->stopped = 0;
 	phba->link_state = LPFC_INIT_START;
 	phba->hba_flag = 0;
 	spin_unlock_irq(&phba->hbalock);
···
  * iteration, the function will restart the HBA again. The function returns
  * zero if HBA successfully restarted else returns negative error code.
  **/
-static int
+int
 lpfc_sli_chipset_init(struct lpfc_hba *phba)
 {
 	uint32_t status, i = 0;

drivers/scsi/pmcraid.c

···
 			pmcraid_err("couldn't build passthrough ioadls\n");
 			goto out_free_cmd;
 		}
-	} else if (request_size < 0) {
-		rc = -EINVAL;
-		goto out_free_cmd;
 	}
 
 	/* If data is being written into the device, copy the data from user

drivers/scsi/qedf/qedf.h

···
 	uint16_t task_id;
 	uint32_t port_id; /* Remote port fabric ID */
 	int lun;
-	char op; /* SCSI CDB */
+	unsigned char op; /* SCSI CDB */
 	uint8_t lba[4];
 	unsigned int bufflen; /* SCSI buffer length */
 	unsigned int sg_count; /* Number of SG elements */

drivers/scsi/qedf/qedf_els.c

···
 	did = fcport->rdata->ids.port_id;
 	sid = fcport->sid;
 
-	__fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, sid, did,
+	__fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, did, sid,
 			   FC_TYPE_ELS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
 			   FC_FC_SEQ_INIT, 0);
 

drivers/scsi/qedf/qedf_main.c

···
 	slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER;
 	slowpath_params.drv_rev = QEDF_DRIVER_REV_VER;
 	slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER;
-	memcpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
+	strncpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
 	rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params);
 	if (rc) {
 		QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");

drivers/scsi/scsi.c

···
 	struct scsi_device *sdev;
 
 	list_for_each_entry(sdev, &shost->__devices, siblings) {
+		if (sdev->sdev_state == SDEV_DEL)
+			continue;
 		if (sdev->channel == channel && sdev->id == id &&
 				sdev->lun ==lun)
 			return sdev;

drivers/scsi/scsi_lib.c

···
 #include <scsi/scsi_driver.h>
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_host.h>
+#include <scsi/scsi_transport.h> /* __scsi_init_queue() */
 #include <scsi/scsi_dh.h>
 
 #include <trace/events/scsi.h>

drivers/soc/ti/knav_dma.c

···
  * @name:	slave channel name
  * @config:	dma configuration parameters
  *
- * Returns pointer to appropriate DMA channel on success or NULL.
+ * Returns pointer to appropriate DMA channel on success or error.
  */
 void *knav_dma_open_channel(struct device *dev, const char *name,
 					struct knav_dma_cfg *config)

drivers/staging/android/ion/devicetree.txt

···
-Ion Memory Manager
-
-Ion is a memory manager that allows for sharing of buffers via dma-buf.
-Ion allows for different types of allocation via an abstraction called
-a 'heap'. A heap represents a specific type of memory. Each heap has
-a different type. There can be multiple instances of the same heap
-type.
-
-Specific heap instances are tied to heap IDs. Heap IDs are not to be specified
-in the devicetree.
-
-Required properties for Ion
-
-- compatible: "linux,ion" PLUS a compatible property for the device
-
-All child nodes of a linux,ion node are interpreted as heaps
-
-required properties for heaps
-
-- compatible: compatible string for a heap type PLUS a compatible property
-for the specific instance of the heap. Current heap types
--- linux,ion-heap-system
--- linux,ion-heap-system-contig
--- linux,ion-heap-carveout
--- linux,ion-heap-chunk
--- linux,ion-heap-dma
--- linux,ion-heap-custom
-
-Optional properties
-- memory-region: A phandle to a memory region. Required for DMA heap type
-(see reserved-memory.txt for details on the reservation)
-
-Example:
-
-	ion {
-		compatbile = "hisilicon,ion", "linux,ion";
-
-		ion-system-heap {
-			compatbile = "hisilicon,system-heap", "linux,ion-heap-system"
-		};
-
-		ion-camera-region {
-			compatible = "hisilicon,camera-heap", "linux,ion-heap-dma"
-			memory-region = <&camera_region>;
-		};
-
-		ion-fb-region {
-			compatbile = "hisilicon,fb-heap", "linux,ion-heap-dma"
-			memory-region = <&fb_region>;
-		};
-	}

drivers/staging/ccree/ssi_request_mgr.c

···
 	rc = ssi_power_mgr_runtime_get(&drvdata->plat_dev->dev);
 	if (rc != 0) {
 		SSI_LOG_ERR("ssi_power_mgr_runtime_get returned %x\n",rc);
-		spin_unlock_bh(&req_mgr_h->hw_lock);
 		return rc;
 	}
 #endif

drivers/staging/fsl-dpaa2/Kconfig

···
 config FSL_DPAA2_ETH
 	tristate "Freescale DPAA2 Ethernet"
 	depends on FSL_DPAA2 && FSL_MC_DPIO
+	depends on NETDEVICES && ETHERNET
 	---help---
 	  Ethernet driver for Freescale DPAA2 SoCs, using the
 	  Freescale MC bus driver

drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c

···
 
 	switch (variable) {
 	case HW_VAR_BSSID:
-		rtl92e_writel(dev, BSSIDR, ((u32 *)(val))[0]);
-		rtl92e_writew(dev, BSSIDR+2, ((u16 *)(val+2))[0]);
+		/* BSSIDR 2 byte alignment */
+		rtl92e_writew(dev, BSSIDR, *(u16 *)val);
+		rtl92e_writel(dev, BSSIDR + 2, *(u32 *)(val + 2));
 		break;
 
 	case HW_VAR_MEDIA_STATUS:
···
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	RT_TRACE(COMP_INIT, "===========>%s()\n", __func__);
-	curCR = rtl92e_readl(dev, EPROM_CMD);
+	curCR = rtl92e_readw(dev, EPROM_CMD);
 	RT_TRACE(COMP_INIT, "read from Reg Cmd9346CR(%x):%x\n", EPROM_CMD,
 		 curCR);
 	priv->epromtype = (curCR & EPROM_CMD_9356SEL) ? EEPROM_93C56 :
···
 	rtl92e_config_rate(dev, &rate_config);
 	priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
 	 priv->basic_rate = rate_config &= 0x15f;
-	rtl92e_writel(dev, BSSIDR, ((u32 *)net->bssid)[0]);
-	rtl92e_writew(dev, BSSIDR+4, ((u16 *)net->bssid)[2]);
+	rtl92e_writew(dev, BSSIDR, *(u16 *)net->bssid);
+	rtl92e_writel(dev, BSSIDR + 2, *(u32 *)(net->bssid + 2));
 
 	if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
 		rtl92e_writew(dev, ATIMWND, 2);
···
 			  struct cb_desc *cb_desc, struct sk_buff *skb)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
-	dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len,
-			 PCI_DMA_TODEVICE);
+	dma_addr_t mapping;
 	struct tx_fwinfo_8190pci *pTxFwInfo;
 
 	pTxFwInfo = (struct tx_fwinfo_8190pci *)skb->data;
···
 	pTxFwInfo->Short = _rtl92e_query_is_short(pTxFwInfo->TxHT,
 						  pTxFwInfo->TxRate, cb_desc);
 
-	if (pci_dma_mapping_error(priv->pdev, mapping))
-		netdev_err(dev, "%s(): DMA Mapping error\n", __func__);
 	if (cb_desc->bAMPDUEnable) {
 		pTxFwInfo->AllowAggregation = 1;
 		pTxFwInfo->RxMF = cb_desc->ampdu_factor;
···
 	}
 
 	memset((u8 *)pdesc, 0, 12);
+
+	mapping = pci_map_single(priv->pdev, skb->data, skb->len,
+				 PCI_DMA_TODEVICE);
+	if (pci_dma_mapping_error(priv->pdev, mapping)) {
+		netdev_err(dev, "%s(): DMA Mapping error\n", __func__);
+		return;
+	}
+
 	pdesc->LINIP = 0;
 	pdesc->CmdInit = 1;
 	pdesc->Offset = sizeof(struct tx_fwinfo_8190pci) + 8;

drivers/staging/rtl8192e/rtl819x_TSProc.c

···
 	pTsCommonInfo->TClasNum = TCLAS_Num;
 }
 
-static bool IsACValid(unsigned int tid)
-{
-	return tid < 7;
-}
-
 bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
 	   u8 *Addr, u8 TID, enum tr_select TxRxSelect, bool bAddNewTs)
 {
···
 	if (ieee->current_network.qos_data.supported == 0) {
 		UP = 0;
 	} else {
-		if (!IsACValid(TID)) {
-			netdev_warn(ieee->dev, "%s(): TID(%d) is not valid\n",
-				    __func__, TID);
-			return false;
-		}
-
 		switch (TID) {
 		case 0:
 		case 3:
···
 		case 7:
 			UP = 7;
 			break;
+		default:
+			netdev_warn(ieee->dev, "%s(): TID(%d) is not valid\n",
+				    __func__, TID);
+			return false;
 		}
 	}
 

drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c

···
 		pwdev_priv->power_mgmt = true;
 	else
 		pwdev_priv->power_mgmt = false;
-	kfree((u8 *)wdev);
 
 	return ret;
 

drivers/staging/typec/fusb302/fusb302.c

···
 
 #define FUSB302_RESUME_RETRY 10
 #define FUSB302_RESUME_RETRY_SLEEP 50
+
+static bool fusb302_is_suspended(struct fusb302_chip *chip)
+{
+	int retry_cnt;
+
+	for (retry_cnt = 0; retry_cnt < FUSB302_RESUME_RETRY; retry_cnt++) {
+		if (atomic_read(&chip->pm_suspend)) {
+			dev_err(chip->dev, "i2c: pm suspend, retry %d/%d\n",
+				retry_cnt + 1, FUSB302_RESUME_RETRY);
+			msleep(FUSB302_RESUME_RETRY_SLEEP);
+		} else {
+			return false;
+		}
+	}
+
+	return true;
+}
+
 static int fusb302_i2c_write(struct fusb302_chip *chip,
 			     u8 address, u8 data)
 {
-	int retry_cnt;
 	int ret = 0;
 
 	atomic_set(&chip->i2c_busy, 1);
-	for (retry_cnt = 0; retry_cnt < FUSB302_RESUME_RETRY; retry_cnt++) {
-		if (atomic_read(&chip->pm_suspend)) {
-			pr_err("fusb302_i2c: pm suspend, retry %d/%d\n",
-			       retry_cnt + 1, FUSB302_RESUME_RETRY);
-			msleep(FUSB302_RESUME_RETRY_SLEEP);
-		} else {
-			break;
-		}
+
+	if (fusb302_is_suspended(chip)) {
+		atomic_set(&chip->i2c_busy, 0);
+		return -ETIMEDOUT;
 	}
+
 	ret = i2c_smbus_write_byte_data(chip->i2c_client, address, data);
 	if (ret < 0)
 		fusb302_log(chip, "cannot write 0x%02x to 0x%02x, ret=%d",
···
 static int fusb302_i2c_block_write(struct fusb302_chip *chip, u8 address,
 				   u8 length, const u8 *data)
 {
-	int retry_cnt;
 	int ret = 0;
 
 	if (length <= 0)
 		return ret;
 	atomic_set(&chip->i2c_busy, 1);
-	for (retry_cnt = 0; retry_cnt < FUSB302_RESUME_RETRY; retry_cnt++) {
-		if (atomic_read(&chip->pm_suspend)) {
-			pr_err("fusb302_i2c: pm suspend, retry %d/%d\n",
-			       retry_cnt + 1, FUSB302_RESUME_RETRY);
-			msleep(FUSB302_RESUME_RETRY_SLEEP);
-		} else {
-			break;
-		}
+
+	if (fusb302_is_suspended(chip)) {
+		atomic_set(&chip->i2c_busy, 0);
+		return -ETIMEDOUT;
 	}
+
 	ret = i2c_smbus_write_i2c_block_data(chip->i2c_client, address,
 					     length, data);
 	if (ret < 0)
···
 static int fusb302_i2c_read(struct fusb302_chip *chip,
 			    u8 address, u8 *data)
 {
-	int retry_cnt;
 	int ret = 0;
 
 	atomic_set(&chip->i2c_busy, 1);
-	for (retry_cnt = 0; retry_cnt < FUSB302_RESUME_RETRY; retry_cnt++) {
-		if (atomic_read(&chip->pm_suspend)) {
-			pr_err("fusb302_i2c: pm suspend, retry %d/%d\n",
-			       retry_cnt + 1, FUSB302_RESUME_RETRY);
-			msleep(FUSB302_RESUME_RETRY_SLEEP);
-		} else {
-			break;
-		}
+
+	if (fusb302_is_suspended(chip)) {
+		atomic_set(&chip->i2c_busy, 0);
+		return -ETIMEDOUT;
 	}
+
 	ret = i2c_smbus_read_byte_data(chip->i2c_client, address);
 	*data = (u8)ret;
 	if (ret < 0)
···
 static int fusb302_i2c_block_read(struct fusb302_chip *chip, u8 address,
 				  u8 length, u8 *data)
 {
-	int retry_cnt;
 	int ret = 0;
 
 	if (length <= 0)
 		return ret;
 	atomic_set(&chip->i2c_busy, 1);
-	for (retry_cnt = 0; retry_cnt < FUSB302_RESUME_RETRY; retry_cnt++) {
-		if (atomic_read(&chip->pm_suspend)) {
-			pr_err("fusb302_i2c: pm suspend, retry %d/%d\n",
-			       retry_cnt + 1, FUSB302_RESUME_RETRY);
-			msleep(FUSB302_RESUME_RETRY_SLEEP);
-		} else {
-			break;
-		}
+
+	if (fusb302_is_suspended(chip)) {
+		atomic_set(&chip->i2c_busy, 0);
+		return -ETIMEDOUT;
 	}
+
 	ret = i2c_smbus_read_i2c_block_data(chip->i2c_client, address,
 					    length, data);
 	if (ret < 0) {
 		fusb302_log(chip, "cannot block read 0x%02x, len=%d, ret=%d",
 			    address, length, ret);
-		return ret;
+		goto done;
 	}
 	if (ret != length) {
 		fusb302_log(chip, "only read %d/%d bytes from 0x%02x",
 			    ret, length, address);
-		return -EIO;
+		ret = -EIO;
 	}
+
+done:
 	atomic_set(&chip->i2c_busy, 0);
 
 	return ret;
···
 	ret = fusb302_i2c_read(chip, FUSB_REG_STATUS0, &data);
 	if (ret < 0)
 		return ret;
-	chip->vbus_present = !!(FUSB_REG_STATUS0 & FUSB_REG_STATUS0_VBUSOK);
+	chip->vbus_present = !!(data & FUSB_REG_STATUS0_VBUSOK);
 	ret = fusb302_i2c_read(chip, FUSB_REG_DEVICE_ID, &data);
 	if (ret < 0)
 		return ret;
···
 	buf[pos++] = FUSB302_TKN_SYNC1;
 	buf[pos++] = FUSB302_TKN_SYNC2;
 
-	len = pd_header_cnt(msg->header) * 4;
+	len = pd_header_cnt_le(msg->header) * 4;
 	/* plug 2 for header */
 	len += 2;
 	if (len > 0x1F) {
···
 				     (u8 *)&msg->header);
 	if (ret < 0)
 		return ret;
-	len = pd_header_cnt(msg->header) * 4;
+	len = pd_header_cnt_le(msg->header) * 4;
 	/* add 4 to length to include the CRC */
 	if (len > PD_MAX_PAYLOAD * 4) {
 		fusb302_log(chip, "PD message too long %d", len);
···
 	if (ret < 0) {
 		fusb302_log(chip,
 			    "cannot set GPIO Int_N to input, ret=%d", ret);
-		gpio_free(chip->gpio_int_n);
 		return ret;
 	}
 	ret = gpio_to_irq(chip->gpio_int_n);
 	if (ret < 0) {
 		fusb302_log(chip,
 			    "cannot request IRQ for GPIO Int_N, ret=%d", ret);
-		gpio_free(chip->gpio_int_n);
 		return ret;
 	}
 	chip->gpio_int_n_irq = ret;
···
 	{.compatible = "fcs,fusb302"},
 	{},
 };
+MODULE_DEVICE_TABLE(of, fusb302_dt_match);
 
 static const struct i2c_device_id fusb302_i2c_device_id[] = {
 	{"typec_fusb302", 0},
 	{},
 };
+MODULE_DEVICE_TABLE(i2c, fusb302_i2c_device_id);
 
 static const struct dev_pm_ops fusb302_pm_ops = {
 	.suspend = fusb302_pm_suspend,

drivers/staging/typec/pd.h

···
 	return pd_header_type(le16_to_cpu(header));
 }
 
+static inline unsigned int pd_header_msgid(u16 header)
+{
+	return (header >> PD_HEADER_ID_SHIFT) & PD_HEADER_ID_MASK;
+}
+
+static inline unsigned int pd_header_msgid_le(__le16 header)
+{
+	return pd_header_msgid(le16_to_cpu(header));
+}
+
 #define PD_MAX_PAYLOAD		7
 
 struct pd_message {

drivers/staging/typec/pd_vdo.h

···
  * VDM object is minimum of VDM header + 6 additional data objects.
  */
 
+#define VDO_MAX_OBJECTS		6
+#define VDO_MAX_SIZE		(VDO_MAX_OBJECTS + 1)
+
 /*
  * VDM header
  * ----------
···
  * <5>      :: reserved (SVDM), command type (UVDM)
  * <4:0>    :: command
  */
-#define VDO_MAX_SIZE 7
 #define VDO(vid, type, custom)				\
 	(((vid) << 16) |				\
 	 ((type) << 15) |				\

drivers/staging/typec/tcpci.c

···
 	.max_register = 0x7F, /* 0x80 .. 0xFF are vendor defined */
 };
 
-const struct tcpc_config tcpci_tcpc_config = {
+static const struct tcpc_config tcpci_tcpc_config = {
 	.type = TYPEC_PORT_DFP,
 	.default_role = TYPEC_SINK,
 };

drivers/staging/typec/tcpm.c

···
 	unsigned int hard_reset_count;
 	bool pd_capable;
 	bool explicit_contract;
+	unsigned int rx_msgid;
 
 	/* Partner capabilities/requests */
 	u32 sink_request;
···
 	unsigned int nr_src_pdo;
 	u32 snk_pdo[PDO_MAX_OBJECTS];
 	unsigned int nr_snk_pdo;
+	u32 snk_vdo[VDO_MAX_OBJECTS];
+	unsigned int nr_snk_vdo;
 
 	unsigned int max_snk_mv;
 	unsigned int max_snk_ma;
···
 	struct pd_mode_data *modep;
 	int rlen = 0;
 	u16 svid;
+	int i;
 
 	tcpm_log(port, "Rx VDM cmd 0x%x type %d cmd %d len %d",
 		 p0, cmd_type, cmd, cnt);
···
 	case CMDT_INIT:
 		switch (cmd) {
 		case CMD_DISCOVER_IDENT:
+			/* 6.4.4.3.1: Only respond as UFP (device) */
+			if (port->data_role == TYPEC_DEVICE &&
+			    port->nr_snk_vdo) {
+				for (i = 0; i <  port->nr_snk_vdo; i++)
+					response[i + 1]
+						= cpu_to_le32(port->snk_vdo[i]);
+				rlen = port->nr_snk_vdo + 1;
+			}
 			break;
 		case CMD_DISCOVER_SVID:
 			break;
···
 			break;
 		case SOFT_RESET_SEND:
 			port->message_id = 0;
+			port->rx_msgid = -1;
 			if (port->pwr_role == TYPEC_SOURCE)
 				next_state = SRC_SEND_CAPABILITIES;
 			else
···
 		 port->attached);
 
 	if (port->attached) {
+		enum pd_ctrl_msg_type type = pd_header_type_le(msg->header);
+		unsigned int msgid = pd_header_msgid_le(msg->header);
+
+		/*
+		 * USB PD standard, 6.6.1.2:
+		 * "... if MessageID value in a received Message is the
+		 * same as the stored value, the receiver shall return a
+		 * GoodCRC Message with that MessageID value and drop
+		 * the Message (this is a retry of an already received
+		 * Message). Note: this shall not apply to the Soft_Reset
+		 * Message which always has a MessageID value of zero."
+		 */
+		if (msgid == port->rx_msgid && type != PD_CTRL_SOFT_RESET)
+			goto done;
+		port->rx_msgid = msgid;
+
 		/*
 		 * If both ends believe to be DFP/host, we have a data role
 		 * mismatch.
···
 		}
 	}
 
+done:
 	mutex_unlock(&port->lock);
 	kfree(event);
 }
···
 	}
 	ma = min(ma, port->max_snk_ma);
 
-	/* XXX: Any other flags need to be set? */
-	flags = 0;
+	flags = RDO_USB_COMM | RDO_NO_SUSPEND;
 
 	/* Set mismatch bit if offered power is less than operating power */
 	mw = ma * mv / 1000;
···
 	port->attached = false;
 	port->pd_capable = false;
 
+	/*
+	 * First Rx ID should be 0; set this to a sentinel of -1 so that
+	 * we can check tcpm_pd_rx_handler() if we had seen it before.
+	 */
+	port->rx_msgid = -1;
+
 	port->tcpc->set_pd_rx(port->tcpc, false);
 	tcpm_init_vbus(port);	/* also disables charging */
 	tcpm_init_vconn(port);
···
 		port->pwr_opmode = TYPEC_PWR_MODE_USB;
 		port->caps_count = 0;
 		port->message_id = 0;
+		port->rx_msgid = -1;
 		port->explicit_contract = false;
 		tcpm_set_state(port, SRC_SEND_CAPABILITIES, 0);
 		break;
···
 		typec_set_pwr_opmode(port->typec_port, TYPEC_PWR_MODE_USB);
 		port->pwr_opmode = TYPEC_PWR_MODE_USB;
 		port->message_id = 0;
+		port->rx_msgid = -1;
 		port->explicit_contract = false;
 		tcpm_set_state(port, SNK_DISCOVERY, 0);
 		break;
···
 	/* Soft_Reset states */
 	case SOFT_RESET:
 		port->message_id = 0;
+		port->rx_msgid = -1;
 		tcpm_pd_send_control(port, PD_CTRL_ACCEPT);
 		if (port->pwr_role == TYPEC_SOURCE)
 			tcpm_set_state(port, SRC_SEND_CAPABILITIES, 0);
···
 		break;
 	case SOFT_RESET_SEND:
 		port->message_id = 0;
+		port->rx_msgid = -1;
 		if (tcpm_pd_send_control(port, PD_CTRL_SOFT_RESET))
 			tcpm_set_state_cond(port, hard_reset_state(port), 0);
 		else
···
 		break;
 	case PR_SWAP_SRC_SNK_SOURCE_OFF:
 		tcpm_set_cc(port, TYPEC_CC_RD);
+		/*
+		 * USB-PD standard, 6.2.1.4, Port Power Role:
+		 * "During the Power Role Swap Sequence, for the initial Source
+		 * Port, the Port Power Role field shall be set to Sink in the
+		 * PS_RDY Message indicating that the initial Source’s power
+		 * supply is turned off"
+		 */
+		tcpm_set_pwr_role(port, TYPEC_SINK);
 		if (tcpm_pd_send_control(port, PD_CTRL_PS_RDY)) {
 			tcpm_set_state(port, ERROR_RECOVERY, 0);
 			break;
···
 		tcpm_set_state_cond(port, SNK_UNATTACHED, PD_T_PS_SOURCE_ON);
 		break;
 	case PR_SWAP_SRC_SNK_SINK_ON:
-		tcpm_set_pwr_role(port, TYPEC_SINK);
 		tcpm_swap_complete(port, 0);
 		tcpm_set_state(port, SNK_STARTUP, 0);
 		break;
···
 	case PR_SWAP_SNK_SRC_SOURCE_ON:
 		tcpm_set_cc(port, tcpm_rp_cc(port));
 		tcpm_set_vbus(port, true);
-		tcpm_pd_send_control(port, PD_CTRL_PS_RDY);
+		/*
+		 * USB PD standard, 6.2.1.4:
+		 * "Subsequent Messages initiated by the Policy Engine,
+		 * such as the PS_RDY Message sent to indicate that Vbus
+		 * is ready, will have the Port Power Role field set to
+		 * Source."
+		 */
 		tcpm_set_pwr_role(port, TYPEC_SOURCE);
+		tcpm_pd_send_control(port, PD_CTRL_PS_RDY);
 		tcpm_swap_complete(port, 0);
 		tcpm_set_state(port, SRC_STARTUP, 0);
 		break;
···
 	return nr_pdo;
 }
 
+static int tcpm_copy_vdos(u32 *dest_vdo, const u32 *src_vdo,
+			  unsigned int nr_vdo)
+{
+	unsigned int i;
+
+	if (nr_vdo > VDO_MAX_OBJECTS)
+		nr_vdo = VDO_MAX_OBJECTS;
+
+	for (i = 0; i < nr_vdo; i++)
+		dest_vdo[i] = src_vdo[i];
+
+	return nr_vdo;
+}
+
 void tcpm_update_source_capabilities(struct tcpm_port *port, const u32 *pdo,
 				     unsigned int nr_pdo)
 {
···
 					  tcpc->config->nr_src_pdo);
 	port->nr_snk_pdo = tcpm_copy_pdos(port->snk_pdo, tcpc->config->snk_pdo,
 					  tcpc->config->nr_snk_pdo);
+	port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcpc->config->snk_vdo,
+					  tcpc->config->nr_snk_vdo);
 
 	port->max_snk_mv = tcpc->config->max_snk_mv;
 	port->max_snk_ma = tcpc->config->max_snk_ma;

drivers/staging/typec/tcpm.h

···
 	const u32 *snk_pdo;
 	unsigned int nr_snk_pdo;
 
+	const u32 *snk_vdo;
+	unsigned int nr_snk_vdo;
+
 	unsigned int max_snk_mv;
 	unsigned int max_snk_ma;
 	unsigned int max_snk_mw;

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c

···
 	 */
 	sg_init_table(scatterlist, num_pages);
 	/* Now set the pages for each scatterlist */
-	for (i = 0; i < num_pages; i++)
-		sg_set_page(scatterlist + i, pages[i], PAGE_SIZE, 0);
+	for (i = 0; i < num_pages; i++)	{
+		unsigned int len = PAGE_SIZE - offset;
+
+		if (len > count)
+			len = count;
+		sg_set_page(scatterlist + i, pages[i], len, offset);
+		offset = 0;
+		count -= len;
+	}
 
 	dma_buffers = dma_map_sg(g_dev,
 				 scatterlist,
···
 		u32 addr = sg_dma_address(sg);
 
 		/* Note: addrs is the address + page_count - 1
-		 * The firmware expects the block to be page
+		 * The firmware expects blocks after the first to be page-
 		 * aligned and a multiple of the page size
 		 */
 		WARN_ON(len == 0);
-		WARN_ON(len & ~PAGE_MASK);
-		WARN_ON(addr & ~PAGE_MASK);
+		WARN_ON(i && (i != (dma_buffers - 1)) && (len & ~PAGE_MASK));
+		WARN_ON(i && (addr & ~PAGE_MASK));
 		if (k > 0 &&
-		    ((addrs[k - 1] & PAGE_MASK) |
-			((addrs[k - 1] & ~PAGE_MASK) + 1) << PAGE_SHIFT)
-		    == addr) {
-			addrs[k - 1] += (len >> PAGE_SHIFT);
-		} else {
-			addrs[k++] = addr | ((len >> PAGE_SHIFT) - 1);
-		}
+		    ((addrs[k - 1] & PAGE_MASK) +
+		     (((addrs[k - 1] & ~PAGE_MASK) + 1) << PAGE_SHIFT))
+		    == (addr & PAGE_MASK))
+			addrs[k - 1] += ((len + PAGE_SIZE - 1) >> PAGE_SHIFT);
+		else
+			addrs[k++] = (addr & PAGE_MASK) |
+				(((len + PAGE_SIZE - 1) >> PAGE_SHIFT) - 1);
 	}
 
 	/* Partial cache lines (fragments) require special measures */

drivers/uio/uio.c

···
 		map = kzalloc(sizeof(*map), GFP_KERNEL);
 		if (!map) {
 			ret = -ENOMEM;
-			goto err_map_kobj;
+			goto err_map;
 		}
 		kobject_init(&map->kobj, &map_attr_type);
 		map->mem = mem;
···
 			goto err_map_kobj;
 		ret = kobject_uevent(&map->kobj, KOBJ_ADD);
 		if (ret)
-			goto err_map;
+			goto err_map_kobj;
 	}
 
 	for (pi = 0; pi < MAX_UIO_PORT_REGIONS; pi++) {
···
 		portio = kzalloc(sizeof(*portio), GFP_KERNEL);
 		if (!portio) {
 			ret = -ENOMEM;
-			goto err_portio_kobj;
+			goto err_portio;
 		}
 		kobject_init(&portio->kobj, &portio_attr_type);
 		portio->port = port;
···
 			goto err_portio_kobj;
 		ret = kobject_uevent(&portio->kobj, KOBJ_ADD);
 		if (ret)
-			goto err_portio;
+			goto err_portio_kobj;
 	}
 
 	return 0;

drivers/usb/core/devio.c

···
 
 	if (userurb) {		/* Async */
 		if (when == SUBMIT)
-			dev_info(&udev->dev, "userurb %p, ep%d %s-%s, "
+			dev_info(&udev->dev, "userurb %pK, ep%d %s-%s, "
 					"length %u\n",
 					userurb, ep, t, d, length);
 		else
-			dev_info(&udev->dev, "userurb %p, ep%d %s-%s, "
+			dev_info(&udev->dev, "userurb %pK, ep%d %s-%s, "
 					"actual_length %u status %d\n",
 					userurb, ep, t, d, length,
 					timeout_or_status);
···
 	if (as) {
 		int retval;
 
-		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
 		retval = processcompl(as, (void __user * __user *)arg);
 		free_async(as);
 		return retval;
···
 
 	as = async_getcompleted(ps);
 	if (as) {
-		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
 		retval = processcompl(as, (void __user * __user *)arg);
 		free_async(as);
 	} else {
···
 	if (as) {
 		int retval;
 
-		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
 		retval = processcompl_compat(as, (void __user * __user *)arg);
 		free_async(as);
 		return retval;
···
 
 	as = async_getcompleted(ps);
 	if (as) {
-		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
 		retval = processcompl_compat(as, (void __user * __user *)arg);
 		free_async(as);
 	} else {
···
 #endif
 
 	case USBDEVFS_DISCARDURB:
-		snoop(&dev->dev, "%s: DISCARDURB %p\n", __func__, p);
+		snoop(&dev->dev, "%s: DISCARDURB %pK\n", __func__, p);
 		ret = proc_unlinkurb(ps, p);
 		break;
 

drivers/usb/core/hcd.c

···
 		if (retval == 0)
 			retval = -EINPROGRESS;
 		else if (retval != -EIDRM && retval != -EBUSY)
-			dev_dbg(&udev->dev, "hcd_unlink_urb %p fail %d\n",
+			dev_dbg(&udev->dev, "hcd_unlink_urb %pK fail %d\n",
 					urb, retval);
 		usb_put_dev(udev);
 	}
···
 		/* kick hcd */
 		unlink1(hcd, urb, -ESHUTDOWN);
 		dev_dbg (hcd->self.controller,
-			"shutdown urb %p ep%d%s%s\n",
+			"shutdown urb %pK ep%d%s%s\n",
 			urb, usb_endpoint_num(&ep->desc),
 			is_in ? "in" : "out",
 			({	char *s;
···
 		hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
 				GFP_KERNEL);
 		if (!hcd->bandwidth_mutex) {
+			kfree(hcd->address0_mutex);
 			kfree(hcd);
 			dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
 			return NULL;

drivers/usb/core/hub.c

···
 }
 
 /* USB 2.0 spec Section 11.24.4.5 */
-static int get_hub_descriptor(struct usb_device *hdev, void *data)
+static int get_hub_descriptor(struct usb_device *hdev,
+		struct usb_hub_descriptor *desc)
 {
 	int i, ret, size;
 	unsigned dtype;
···
 	for (i = 0; i < 3; i++) {
 		ret = usb_control_msg(hdev, usb_rcvctrlpipe(hdev, 0),
 			USB_REQ_GET_DESCRIPTOR, USB_DIR_IN | USB_RT_HUB,
-			dtype << 8, 0, data, size,
+			dtype << 8, 0, desc, size,
 			USB_CTRL_GET_TIMEOUT);
-		if (ret >= (USB_DT_HUB_NONVAR_SIZE + 2))
+		if (hub_is_superspeed(hdev)) {
+			if (ret == size)
+				return ret;
+		} else if (ret >= USB_DT_HUB_NONVAR_SIZE + 2) {
+			/* Make sure we have the DeviceRemovable field. */
+			size = USB_DT_HUB_NONVAR_SIZE + desc->bNbrPorts / 8 + 1;
+			if (ret < size)
+				return -EMSGSIZE;
 			return ret;
+		}
 	}
 	return -EINVAL;
 }
···
 	}
 	mutex_init(&hub->status_mutex);
 
-	hub->descriptor = kmalloc(sizeof(*hub->descriptor), GFP_KERNEL);
+	hub->descriptor = kzalloc(sizeof(*hub->descriptor), GFP_KERNEL);
 	if (!hub->descriptor) {
 		ret = -ENOMEM;
 		goto fail;
···
 
 	/* Request the entire hub descriptor.
 	 * hub->descriptor can handle USB_MAXCHILDREN ports,
-	 * but the hub can/will return fewer bytes here.
+	 * but a (non-SS) hub can/will return fewer bytes here.
 	 */
 	ret = get_hub_descriptor(hdev, hub->descriptor);
 	if (ret < 0) {
 		message = "can't read hub descriptor";
 		goto fail;
-	} else if (hub->descriptor->bNbrPorts > USB_MAXCHILDREN) {
+	}
+
+	maxchild = USB_MAXCHILDREN;
+	if (hub_is_superspeed(hdev))
+		maxchild = min_t(unsigned, maxchild, USB_SS_MAXPORTS);
+
+	if (hub->descriptor->bNbrPorts > maxchild) {
 		message = "hub has too many ports!";
 		ret = -ENODEV;
 		goto fail;

drivers/usb/core/of.c

···
  *
  * Find the companion device from platform bus.
  *
+ * Takes a reference to the returned struct device which needs to be dropped
+ * after use.
+ *
  * Return: On success, a pointer to the companion device, %NULL on failure.
  */
 struct device *usb_of_get_companion_dev(struct device *dev)

drivers/usb/core/urb.c

···
 	if (!urb || !urb->complete)
 		return -EINVAL;
 	if (urb->hcpriv) {
-		WARN_ONCE(1, "URB %p submitted while active\n", urb);
+		WARN_ONCE(1, "URB %pK submitted while active\n", urb);
 		return -EBUSY;
 	}
 

drivers/usb/dwc3/dwc3-keystone.c

···
 		return PTR_ERR(kdwc->usbss);
 
 	kdwc->clk = devm_clk_get(kdwc->dev, "usb");
+	if (IS_ERR(kdwc->clk)) {
+		dev_err(kdwc->dev, "unable to get usb clock\n");
+		return PTR_ERR(kdwc->clk);
+	}
 
 	error = clk_prepare_enable(kdwc->clk);
 	if (error < 0) {

drivers/usb/dwc3/dwc3-pci.c

···
 #define PCI_DEVICE_ID_INTEL_APL			0x5aaa
 #define PCI_DEVICE_ID_INTEL_KBP			0xa2b0
 #define PCI_DEVICE_ID_INTEL_GLK			0x31aa
+#define PCI_DEVICE_ID_INTEL_CNPLP		0x9dee
+#define PCI_DEVICE_ID_INTEL_CNPH		0xa36e
 
 #define PCI_INTEL_BXT_DSM_UUID		"732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511"
 #define PCI_INTEL_BXT_FUNC_PMU_PWR	4
···
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_APL), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBP), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GLK), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPLP), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPH), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
 	{  }	/* Terminating Entry */
 };

drivers/usb/dwc3/gadget.c

···
 				__dwc3_gadget_start_isoc(dwc, dep, cur_uf);
 				dep->flags &= ~DWC3_EP_PENDING_REQUEST;
 			}
+			return 0;
 		}
-		return 0;
+
+		if ((dep->flags & DWC3_EP_BUSY) &&
+		    !(dep->flags & DWC3_EP_MISSED_ISOC)) {
+			WARN_ON_ONCE(!dep->resource_index);
+			ret = __dwc3_gadget_kick_transfer(dep,
+							  dep->resource_index);
+		}
+
+		goto out;
 	}
 
 	if (!dwc3_calc_trbs_left(dep))
 		return 0;
 
 	ret = __dwc3_gadget_kick_transfer(dep, 0);
+out:
 	if (ret == -EBUSY)
 		ret = 0;
 
···
 		dwc->pending_events = true;
 		return IRQ_HANDLED;
 	}
+
+	/*
+	 * With PCIe legacy interrupt, test shows that top-half irq handler can
+	 * be called again after HW interrupt deassertion. Check if bottom-half
+	 * irq event handler completes before caching new event to prevent
+	 * losing events.
+	 */
+	if (evt->flags & DWC3_EVENT_PENDING)
+		return IRQ_HANDLED;
 
 	count = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(0));
 	count &= DWC3_GEVNTCOUNT_MASK;

drivers/usb/gadget/function/f_fs.c

···
 		ep->ep->driver_data = ep;
 		ep->ep->desc = ds;
 
-		comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds +
-				USB_DT_ENDPOINT_SIZE);
-		ep->ep->maxburst = comp_desc->bMaxBurst + 1;
-
-		if (needs_comp_desc)
+		if (needs_comp_desc) {
+			comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds +
+					USB_DT_ENDPOINT_SIZE);
+			ep->ep->maxburst = comp_desc->bMaxBurst + 1;
 			ep->ep->comp_desc = comp_desc;
+		}
 
 		ret = usb_ep_enable(ep->ep);
 		if (likely(!ret)) {

drivers/usb/gadget/function/u_serial.c

···
 	struct gscons_info *info = &gscons_info;
 
 	unregister_console(&gserial_cons);
-	if (info->console_thread != NULL)
+	if (!IS_ERR_OR_NULL(info->console_thread))
 		kthread_stop(info->console_thread);
 	gs_buf_free(&info->con_buf);
 }

drivers/usb/gadget/udc/dummy_hcd.c

···
 			HUB_CHAR_COMMON_OCPM);
 	desc->bNbrPorts = 1;
 	desc->u.ss.bHubHdrDecLat = 0x04; /* Worst case: 0.4 micro sec*/
-	desc->u.ss.DeviceRemovable = 0xffff;
+	desc->u.ss.DeviceRemovable = 0;
 }
 
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
···
 			HUB_CHAR_INDV_PORT_LPSM |
 			HUB_CHAR_COMMON_OCPM);
 	desc->bNbrPorts = 1;
-	desc->u.hs.DeviceRemovable[0] = 0xff;
-	desc->u.hs.DeviceRemovable[1] = 0xff;
+	desc->u.hs.DeviceRemovable[0] = 0;
+	desc->u.hs.DeviceRemovable[1] = 0xff;	/* PortPwrCtrlMask */
 }
 
 static int dummy_hub_control(

drivers/usb/host/ehci-platform.c

···
 	}
 
 	companion_dev = usb_of_get_companion_dev(hcd->self.controller);
-	if (companion_dev)
+	if (companion_dev) {
 		device_pm_wait_for_dev(hcd->self.controller, companion_dev);
+		put_device(companion_dev);
+	}
 
 	ehci_resume(hcd, priv->reset_on_resume);
 	return 0;

drivers/usb/host/r8a66597-hcd.c

···
 			time = 30;
 			break;
 		default:
-			time = 300;
+			time = 50;
 			break;
 		}
 
···
 		pipe = td->pipe;
 		pipe_stop(r8a66597, pipe);
 
+		/* Select a different address or endpoint */
 		new_td = td;
 		do {
 			list_move_tail(&new_td->queue,
···
 				new_td = td;
 				break;
 			}
-		} while (td != new_td && td->address == new_td->address);
+		} while (td != new_td && td->address == new_td->address &&
+			td->pipe->info.epnum == new_td->pipe->info.epnum);
 
 		start_transfer(r8a66597, new_td);
 

drivers/usb/host/xhci-hub.c

···
 	wait_for_completion(cmd->completion);
 
 	if (cmd->status == COMP_COMMAND_ABORTED ||
-			cmd->status == COMP_STOPPED) {
+	    cmd->status == COMP_COMMAND_RING_STOPPED) {
 		xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n");
 		ret = -ETIME;
 	}

drivers/usb/host/xhci-mem.c

···
 	}
 
 	if (max_packet) {
-		seg->bounce_buf = kzalloc(max_packet, flags | GFP_DMA);
+		seg->bounce_buf = kzalloc(max_packet, flags);
 		if (!seg->bounce_buf) {
 			dma_pool_free(xhci->segment_pool, seg->trbs, dma);
 			kfree(seg);
···
 	xhci->dcbaa->dev_context_ptrs[0] = cpu_to_le64(xhci->scratchpad->sp_dma);
 	for (i = 0; i < num_sp; i++) {
 		dma_addr_t dma;
-		void *buf = dma_alloc_coherent(dev, xhci->page_size, &dma,
+		void *buf = dma_zalloc_coherent(dev, xhci->page_size, &dma,
 				flags);
 		if (!buf)
 			goto fail_sp4;
···
 	/* Place limits on the number of roothub ports so that the hub
 	 * descriptors aren't longer than the USB core will allocate.
 	 */
-	if (xhci->num_usb3_ports > 15) {
+	if (xhci->num_usb3_ports > USB_SS_MAXPORTS) {
 		xhci_dbg_trace(xhci, trace_xhci_dbg_init,
-				"Limiting USB 3.0 roothub ports to 15.");
-		xhci->num_usb3_ports = 15;
+				"Limiting USB 3.0 roothub ports to %u.",
+				USB_SS_MAXPORTS);
+		xhci->num_usb3_ports = USB_SS_MAXPORTS;
 	}
 	if (xhci->num_usb2_ports > USB_MAXCHILDREN) {
 		xhci_dbg_trace(xhci, trace_xhci_dbg_init,

drivers/usb/host/xhci-pci.c

···
 #define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI		0x0aa8
 #define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI		0x1aa8
 #define PCI_DEVICE_ID_INTEL_APL_XHCI			0x5aa8
+#define PCI_DEVICE_ID_INTEL_DNV_XHCI			0x19d0
 
 static const char hcd_name[] = "xhci_hcd";
 
···
 		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
 		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI ||
 		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI ||
-		 pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI)) {
+		 pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI)) {
 		xhci->quirks |= XHCI_PME_STUCK_QUIRK;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
···
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 	    (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI))
+	     pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI))
 		xhci->quirks |= XHCI_MISSING_CAS;
 
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&

drivers/usb/host/xhci-plat.c

···
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
-		return -ENODEV;
+		return irq;
 
 	/*
 	 * sysdev must point to a device that is known to the system firmware

drivers/usb/host/xhci-ring.c

···
 		if (i_cmd->status != COMP_COMMAND_ABORTED)
 			continue;
 
-		i_cmd->status = COMP_STOPPED;
+		i_cmd->status = COMP_COMMAND_RING_STOPPED;
 
 		xhci_dbg(xhci, "Turn aborted command %p to no-op\n",
 			 i_cmd->command_trb);
···
 	xhci_urb_free_priv(urb_priv);
 	usb_hcd_unlink_urb_from_ep(hcd, urb);
 	spin_unlock(&xhci->lock);
-	usb_hcd_giveback_urb(hcd, urb, status);
 	trace_xhci_urb_giveback(urb);
+	usb_hcd_giveback_urb(hcd, urb, status);
 	spin_lock(&xhci->lock);
 }
 
···
 	cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status));
 
 	/* If CMD ring stopped we own the trbs between enqueue and dequeue */
-	if (cmd_comp_code == COMP_STOPPED) {
+	if (cmd_comp_code == COMP_COMMAND_RING_STOPPED) {
 		complete_all(&xhci->cmd_ring_stop_completion);
 		return;
 	}
···
 		break;
 	case TRB_CMD_NOOP:
 		/* Is this an aborted command turned to NO-OP? */
-		if (cmd->status == COMP_STOPPED)
-			cmd_comp_code = COMP_STOPPED;
+		if (cmd->status == COMP_COMMAND_RING_STOPPED)
+			cmd_comp_code = COMP_COMMAND_RING_STOPPED;
 		break;
 	case TRB_RESET_EP:
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
···
 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
 	union xhci_trb *event_ring_deq;
 	irqreturn_t ret = IRQ_NONE;
+	unsigned long flags;
 	dma_addr_t deq;
 	u64 temp_64;
 	u32 status;
 
-	spin_lock(&xhci->lock);
+	spin_lock_irqsave(&xhci->lock, flags);
 	/* Check if the xHC generated the interrupt, or the irq is shared */
 	status = readl(&xhci->op_regs->status);
 	if (status == ~(u32)0) {
···
 	 */
 	status |= STS_EINT;
 	writel(status, &xhci->op_regs->status);
-	/* FIXME when MSI-X is supported and there are multiple vectors */
-	/* Clear the MSI-X event interrupt status */
 
-	if (hcd->irq) {
+	if (!hcd->msi_enabled) {
 		u32 irq_pending;
-		/* Acknowledge the PCI interrupt */
 		irq_pending = readl(&xhci->ir_set->irq_pending);
 		irq_pending |= IMAN_IP;
 		writel(irq_pending, &xhci->ir_set->irq_pending);
···
 	ret = IRQ_HANDLED;
 
 out:
-	spin_unlock(&xhci->lock);
+	spin_unlock_irqrestore(&xhci->lock, flags);
 
 	return ret;
 }

drivers/usb/host/xhci.c

···
 		/* fall back to msi*/
 		ret = xhci_setup_msi(xhci);
 
-	if (!ret)
-		/* hcd->irq is 0, we have MSI */
+	if (!ret) {
+		hcd->msi_enabled = 1;
 		return 0;
+	}
 
 	if (!pdev->irq) {
 		xhci_err(xhci, "No msi-x/msi found and no IRQ in BIOS\n");
···
 
 	switch (*cmd_status) {
 	case COMP_COMMAND_ABORTED:
-	case COMP_STOPPED:
+	case COMP_COMMAND_RING_STOPPED:
 		xhci_warn(xhci, "Timeout while waiting for configure endpoint command\n");
 		ret = -ETIME;
 		break;
···
 
 	switch (*cmd_status) {
 	case COMP_COMMAND_ABORTED:
-	case COMP_STOPPED:
+	case COMP_COMMAND_RING_STOPPED:
 		xhci_warn(xhci, "Timeout while waiting for evaluate context command\n");
 		ret = -ETIME;
 		break;
···
 	ret = reset_device_cmd->status;
 	switch (ret) {
 	case COMP_COMMAND_ABORTED:
-	case COMP_STOPPED:
+	case COMP_COMMAND_RING_STOPPED:
 		xhci_warn(xhci, "Timeout waiting for reset device command\n");
 		ret = -ETIME;
 		goto command_cleanup;
···
 	 */
 	switch (command->status) {
 	case COMP_COMMAND_ABORTED:
-	case COMP_STOPPED:
+	case COMP_COMMAND_RING_STOPPED:
 		xhci_warn(xhci, "Timeout while waiting for setup device command\n");
 		ret = -ETIME;
 		break;

drivers/usb/misc/chaoskey.c

···
 
 	dev->in_ep = in_ep;
 
-	if (udev->descriptor.idVendor != ALEA_VENDOR_ID)
+	if (le16_to_cpu(udev->descriptor.idVendor) != ALEA_VENDOR_ID)
 		dev->reads_started = 1;
 
 	dev->size = size;

drivers/usb/misc/iowarrior.c

···
 			info.revision = le16_to_cpu(dev->udev->descriptor.bcdDevice);
 
 			/* 0==UNKNOWN, 1==LOW(usb1.1) ,2=FULL(usb1.1), 3=HIGH(usb2.0) */
-			info.speed = le16_to_cpu(dev->udev->speed);
+			info.speed = dev->udev->speed;
 			info.if_num = dev->interface->cur_altsetting->desc.bInterfaceNumber;
 			info.report_size = dev->report_size;
 

drivers/usb/misc/legousbtower.c

···
 		 USB_MAJOR, dev->minor);
 
 exit:
+	kfree(get_version_reply);
 	return retval;
 
 error:

drivers/usb/misc/sisusbvga/sisusb_con.c

···
 
 	mutex_unlock(&sisusb->lock);
 
-	return 1;
+	return true;
 }
 
 /* Interface routine */

drivers/usb/musb/musb_host.c

···
 	int ret;
 	struct usb_hcd *hcd = musb->hcd;
 
-	MUSB_HST_MODE(musb);
-	musb->xceiv->otg->default_a = 1;
-	musb->xceiv->otg->state = OTG_STATE_A_IDLE;
-
+	if (musb->port_mode == MUSB_PORT_MODE_HOST) {
+		MUSB_HST_MODE(musb);
+		musb->xceiv->otg->default_a = 1;
+		musb->xceiv->otg->state = OTG_STATE_A_IDLE;
+	}
 	otg_set_host(musb->xceiv->otg, &hcd->self);
 	hcd->self.otg_port = 1;
 	musb->xceiv->otg->host = &hcd->self;

drivers/usb/musb/tusb6010_omap.c

···
 	u32				dma_remaining;
 	int				src_burst, dst_burst;
 	u16				csr;
+	u32				psize;
 	int				ch;
 	s8				dmareq;
 	s8				sync_dev;
···
 
 	if (chdat->tx) {
 		/* Send transfer_packet_sz packets at a time */
-		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET,
-			chdat->transfer_packet_sz);
+		psize = musb_readl(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET);
+		psize &= ~0x7ff;
+		psize |= chdat->transfer_packet_sz;
+		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET, psize);
 
 		musb_writel(ep_conf, TUSB_EP_TX_OFFSET,
 			TUSB_EP_CONFIG_XFR_SIZE(chdat->transfer_len));
 	} else {
 		/* Receive transfer_packet_sz packets at a time */
-		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET,
-			chdat->transfer_packet_sz << 16);
+		psize = musb_readl(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET);
+		psize &= ~(0x7ff << 16);
+		psize |= (chdat->transfer_packet_sz << 16);
+		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET, psize);
 
 		musb_writel(ep_conf, TUSB_EP_RX_OFFSET,
 			TUSB_EP_CONFIG_XFR_SIZE(chdat->transfer_len));

drivers/usb/serial/ftdi_sio.c

···
 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) },
 	{ USB_DEVICE(FTDI_VID, CYBER_CORTEX_AV_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
-	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
-		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
-	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID),
-		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_TINY_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_TINY_H_PID, 1) },
 	{ USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
···
 					(new_serial.flags & ASYNC_FLAGS));
 	priv->custom_divisor = new_serial.custom_divisor;
 
+check_and_exit:
 	write_latency_timer(port);
 
-check_and_exit:
 	if ((old_priv.flags & ASYNC_SPD_MASK) !=
 	     (priv->flags & ASYNC_SPD_MASK)) {
 		if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)

drivers/usb/serial/ftdi_sio_ids.h

···
 /* Olimex */
 #define OLIMEX_VID			0x15BA
 #define OLIMEX_ARM_USB_OCD_PID		0x0003
+#define OLIMEX_ARM_USB_TINY_PID	0x0004
+#define OLIMEX_ARM_USB_TINY_H_PID	0x002a
 #define OLIMEX_ARM_USB_OCD_H_PID	0x002b
 
 /*

drivers/usb/serial/io_ti.c

···
 	if (!baud) {
 		/* pick a default, any default... */
 		baud = 9600;
-	} else
+	} else {
+		/* Avoid a zero divisor. */
+		baud = min(baud, 461550);
 		tty_encode_baud_rate(tty, baud, baud);
+	}
 
 	edge_port->baud_rate = baud;
 	config->wBaudRate = (__u16)((461550L + baud/2) / baud);

drivers/usb/serial/ir-usb.c

···
 static int ir_startup(struct usb_serial *serial)
 {
 	struct usb_irda_cs_descriptor *irda_desc;
+	int rates;
 
 	irda_desc = irda_usb_find_class_desc(serial, 0);
 	if (!irda_desc) {
···
 		return -ENODEV;
 	}
 
+	rates = le16_to_cpu(irda_desc->wBaudRate);
+
 	dev_dbg(&serial->dev->dev,
 		"%s - Baud rates supported:%s%s%s%s%s%s%s%s%s\n",
 		__func__,
-		(irda_desc->wBaudRate & USB_IRDA_BR_2400) ? " 2400" : "",
-		(irda_desc->wBaudRate & USB_IRDA_BR_9600) ? " 9600" : "",
-		(irda_desc->wBaudRate & USB_IRDA_BR_19200) ? " 19200" : "",
-		(irda_desc->wBaudRate & USB_IRDA_BR_38400) ? " 38400" : "",
-		(irda_desc->wBaudRate & USB_IRDA_BR_57600) ? " 57600" : "",
-		(irda_desc->wBaudRate & USB_IRDA_BR_115200) ? " 115200" : "",
-		(irda_desc->wBaudRate & USB_IRDA_BR_576000) ? " 576000" : "",
-		(irda_desc->wBaudRate & USB_IRDA_BR_1152000) ? " 1152000" : "",
-		(irda_desc->wBaudRate & USB_IRDA_BR_4000000) ? " 4000000" : "");
+		(rates & USB_IRDA_BR_2400) ? " 2400" : "",
+		(rates & USB_IRDA_BR_9600) ? " 9600" : "",
+		(rates & USB_IRDA_BR_19200) ? " 19200" : "",
+		(rates & USB_IRDA_BR_38400) ? " 38400" : "",
+		(rates & USB_IRDA_BR_57600) ? " 57600" : "",
+		(rates & USB_IRDA_BR_115200) ? " 115200" : "",
+		(rates & USB_IRDA_BR_576000) ? " 576000" : "",
+		(rates & USB_IRDA_BR_1152000) ? " 1152000" : "",
+		(rates & USB_IRDA_BR_4000000) ? " 4000000" : "");
 
 	switch (irda_desc->bmAdditionalBOFs) {
 	case USB_IRDA_AB_48:

drivers/usb/serial/mct_u232.c

···
 		return -ENOMEM;
 
 	divisor = mct_u232_calculate_baud_rate(serial, value, &speed);
-	put_unaligned_le32(cpu_to_le32(divisor), buf);
+	put_unaligned_le32(divisor, buf);
 	rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 				MCT_U232_SET_BAUD_RATE_REQUEST,
 				MCT_U232_SET_REQUEST_TYPE,

drivers/usb/serial/option.c

···
 #define TELIT_PRODUCT_LE922_USBCFG0		0x1042
 #define TELIT_PRODUCT_LE922_USBCFG3		0x1043
 #define TELIT_PRODUCT_LE922_USBCFG5		0x1045
+#define TELIT_PRODUCT_ME910			0x1100
 #define TELIT_PRODUCT_LE920			0x1200
 #define TELIT_PRODUCT_LE910			0x1201
 #define TELIT_PRODUCT_LE910_USBCFG4		0x1206
···
 
 static const struct option_blacklist_info simcom_sim7100e_blacklist = {
 	.reserved = BIT(5) | BIT(6),
+};
+
+static const struct option_blacklist_info telit_me910_blacklist = {
+	.sendsetup = BIT(0),
+	.reserved = BIT(1) | BIT(3),
 };
 
 static const struct option_blacklist_info telit_le910_blacklist = {
···
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
+		.driver_info = (kernel_ulong_t)&telit_me910_blacklist },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
 		.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),

drivers/usb/serial/qcserial.c

···
 	{DEVICE_SWI(0x1199, 0x9071)},	/* Sierra Wireless MC74xx */
 	{DEVICE_SWI(0x1199, 0x9078)},	/* Sierra Wireless EM74xx */
 	{DEVICE_SWI(0x1199, 0x9079)},	/* Sierra Wireless EM74xx */
+	{DEVICE_SWI(0x1199, 0x907a)},	/* Sierra Wireless EM74xx QDL */
+	{DEVICE_SWI(0x1199, 0x907b)},	/* Sierra Wireless EM74xx */
 	{DEVICE_SWI(0x413c, 0x81a2)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a3)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a4)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */

drivers/usb/storage/ene_ub6250.c

···
 #define SD_BLOCK_LEN  9
 
 struct ene_ub6250_info {
+
+	/* I/O bounce buffer */
+	u8		*bbuf;
+
 	/* for 6250 code */
 	struct SD_STATUS	SD_Status;
 	struct MS_STATUS	MS_Status;
···
 
 static void ene_ub6250_info_destructor(void *extra)
 {
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) extra;
+
 	if (!extra)
 		return;
+	kfree(info->bbuf);
 }
 
 static int ene_send_scsi_cmd(struct us_data *us, u8 fDir, void *buf, int use_sg)
···
 		u8 PageNum, u32 *PageBuf, struct ms_lib_type_extdat *ExtraDat)
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 	int result;
-	u8 ExtBuf[4];
 	u32 bn = PhyBlockAddr * 0x20 + PageNum;
 
 	result = ene_load_bincode(us, MS_RW_PATTERN);
···
 	bcb->CDB[2]     = (unsigned char)(PhyBlockAddr>>16);
 	bcb->CDB[6]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &ExtBuf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
···
 	ExtraDat->status0  = 0x10;  /* Not yet,fireware support */
 
 	ExtraDat->status1  = 0x00;  /* Not yet,fireware support */
-	ExtraDat->ovrflg   = ExtBuf[0];
-	ExtraDat->mngflg   = ExtBuf[1];
-	ExtraDat->logadr   = memstick_logaddr(ExtBuf[2], ExtBuf[3]);
+	ExtraDat->ovrflg   = bbuf[0];
+	ExtraDat->mngflg   = bbuf[1];
+	ExtraDat->logadr   = memstick_logaddr(bbuf[2], bbuf[3]);
 
 	return USB_STOR_TRANSPORT_GOOD;
 }
···
 				u8 PageNum, struct ms_lib_type_extdat *ExtraDat)
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 	int result;
-	u8 ExtBuf[4];
 
 	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
···
 	bcb->CDB[2]     = (unsigned char)(PhyBlock>>16);
 	bcb->CDB[6]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &ExtBuf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
···
 	ExtraDat->intr     = 0x80;  /* Not yet, waiting for fireware support */
 	ExtraDat->status0  = 0x10;  /* Not yet, waiting for fireware support */
 	ExtraDat->status1  = 0x00;  /* Not yet, waiting for fireware support */
-	ExtraDat->ovrflg   = ExtBuf[0];
-	ExtraDat->mngflg   = ExtBuf[1];
-	ExtraDat->logadr   = memstick_logaddr(ExtBuf[2], ExtBuf[3]);
+	ExtraDat->ovrflg   = bbuf[0];
+	ExtraDat->mngflg   = bbuf[1];
+	ExtraDat->logadr   = memstick_logaddr(bbuf[2], bbuf[3]);
 
 	return USB_STOR_TRANSPORT_GOOD;
 }
···
 	u16 PhyBlock, newblk, i;
 	u16 LogStart, LogEnde;
 	struct ms_lib_type_extdat extdat;
-	u8 buf[0x200];
 	u32 count = 0, index = 0;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	for (PhyBlock = 0; PhyBlock < info->MS_Lib.NumberOfPhyBlock;) {
 		ms_lib_phy_to_log_range(PhyBlock, &LogStart, &LogEnde);
···
 			}
 
 			if (count == PhyBlock) {
-				ms_lib_read_extrablock(us, PhyBlock, 0, 0x80, &buf);
+				ms_lib_read_extrablock(us, PhyBlock, 0, 0x80,
+						bbuf);
 				count += 0x80;
 			}
 			index = (PhyBlock % 0x80) * 4;
 
-			extdat.ovrflg = buf[index];
-			extdat.mngflg = buf[index+1];
-			extdat.logadr = memstick_logaddr(buf[index+2], buf[index+3]);
+			extdat.ovrflg = bbuf[index];
+			extdat.mngflg = bbuf[index+1];
+			extdat.logadr = memstick_logaddr(bbuf[index+2],
+					bbuf[index+3]);
 
 			if ((extdat.ovrflg & MS_REG_OVR_BKST) != MS_REG_OVR_BKST_OK) {
 				ms_lib_setacquired_errorblock(us, PhyBlock);
···
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 	int result;
-	u8 buf[0x200];
 	u16 MSP_BlockSize, MSP_UserAreaBlocks;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	printk(KERN_INFO "transport --- ENE_MSInit\n");
 
···
 	bcb->CDB[0]     = 0xF1;
 	bcb->CDB[1]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
 		printk(KERN_ERR "Execution MS Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 	/* the same part to test ENE */
-	info->MS_Status = *(struct MS_STATUS *)&buf[0];
+	info->MS_Status = *(struct MS_STATUS *) bbuf;
 
 	if (info->MS_Status.Insert && info->MS_Status.Ready) {
 		printk(KERN_INFO "Insert     = %x\n", info->MS_Status.Insert);
···
 		printk(KERN_INFO "IsMSPHG    = %x\n", info->MS_Status.IsMSPHG);
 		printk(KERN_INFO "WtP= %x\n", info->MS_Status.WtP);
 		if (info->MS_Status.IsMSPro) {
-			MSP_BlockSize      = (buf[6] << 8) | buf[7];
-			MSP_UserAreaBlocks = (buf[10] << 8) | buf[11];
+			MSP_BlockSize      = (bbuf[6] << 8) | bbuf[7];
+			MSP_UserAreaBlocks = (bbuf[10] << 8) | bbuf[11];
 			info->MSP_TotalBlock = MSP_BlockSize * MSP_UserAreaBlocks;
 		} else {
 			ms_card_init(us); /* Card is MS (to ms.c)*/
 		}
 		usb_stor_dbg(us, "MS Init Code OK !!\n");
 	} else {
-		usb_stor_dbg(us, "MS Card Not Ready --- %x\n", buf[0]);
+		usb_stor_dbg(us, "MS Card Not Ready --- %x\n", bbuf[0]);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
···
 static int ene_sd_init(struct us_data *us)
 {
 	int result;
-	u8  buf[0x200];
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	usb_stor_dbg(us, "transport --- ENE_SDInit\n");
 	/* SD Init Part-1 */
···
 	bcb->Flags              = US_BULK_FLAG_IN;
 	bcb->CDB[0]             = 0xF1;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
 		usb_stor_dbg(us, "Execution SD Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
-	info->SD_Status =  *(struct SD_STATUS *)&buf[0];
+	info->SD_Status =  *(struct SD_STATUS *) bbuf;
 	if (info->SD_Status.Insert && info->SD_Status.Ready) {
 		struct SD_STATUS *s = &info->SD_Status;
 
-		ene_get_card_status(us, (unsigned char *)&buf);
+		ene_get_card_status(us, bbuf);
 		usb_stor_dbg(us, "Insert     = %x\n", s->Insert);
 		usb_stor_dbg(us, "Ready      = %x\n", s->Ready);
 		usb_stor_dbg(us, "IsMMC      = %x\n", s->IsMMC);
···
 		usb_stor_dbg(us, "HiSpeed    = %x\n", s->HiSpeed);
 		usb_stor_dbg(us, "WtP        = %x\n", s->WtP);
 	} else {
-		usb_stor_dbg(us, "SD Card Not Ready --- %x\n", buf[0]);
+		usb_stor_dbg(us, "SD Card Not Ready --- %x\n", bbuf[0]);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 	return USB_STOR_TRANSPORT_GOOD;
···
 static int ene_init(struct us_data *us)
 {
 	int result;
-	u8  misc_reg03 = 0;
+	u8  misc_reg03;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
+	u8 *bbuf = info->bbuf;
 
-	result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
+	result = ene_get_card_type(us, REG_CARD_STATUS, bbuf);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
+	misc_reg03 = bbuf[0];
 	if (misc_reg03 & 0x01) {
 		if (!info->SD_Status.Ready) {
 			result = ene_sd_init(us);
···
 			 const struct usb_device_id *id)
 {
 	int result;
-	u8  misc_reg03 = 0;
+	u8  misc_reg03;
 	struct us_data *us;
+	struct ene_ub6250_info *info;
 
 	result = usb_stor_probe1(&us, intf, id,
 		   (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list,
···
 		return result;
 
 	/* FIXME: where should the code alloc extra buf ? */
-	if (!us->extra) {
-		us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
-		if (!us->extra)
-			return -ENOMEM;
-		us->extra_destructor = ene_ub6250_info_destructor;
+	us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
+	if (!us->extra)
+		return -ENOMEM;
+	us->extra_destructor = ene_ub6250_info_destructor;
+
+	info = (struct ene_ub6250_info *)(us->extra);
+	info->bbuf = kmalloc(512, GFP_KERNEL);
+	if (!info->bbuf) {
+		kfree(us->extra);
+		return -ENOMEM;
 	}
 
 	us->transport_name = "ene_ub6250";
···
 		return result;
 
 	/* probe card type */
-	result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
+	result = ene_get_card_type(us, REG_CARD_STATUS, info->bbuf);
 	if (result != USB_STOR_XFER_GOOD) {
 		usb_stor_disconnect(intf);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
+	misc_reg03 = info->bbuf[0];
 	if (!(misc_reg03 & 0x01)) {
 		pr_info("ums_eneub6250: This driver only supports SD/MS cards. "
 			"It does not support SM cards.\n");

drivers/usb/usbip/vhci_hcd.c

···
 
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
 {
+	int width;
+
 	memset(desc, 0, sizeof(*desc));
 	desc->bDescriptorType = USB_DT_HUB;
-	desc->bDescLength = 9;
 	desc->wHubCharacteristics = cpu_to_le16(
 		HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_COMMON_OCPM);
+
 	desc->bNbrPorts = VHCI_HC_PORTS;
-	desc->u.hs.DeviceRemovable[0] = 0xff;
-	desc->u.hs.DeviceRemovable[1] = 0xff;
+	BUILD_BUG_ON(VHCI_HC_PORTS > USB_MAXCHILDREN);
+	width = desc->bNbrPorts / 8 + 1;
+	desc->bDescLength = USB_DT_HUB_NONVAR_SIZE + 2 * width;
+	memset(&desc->u.hs.DeviceRemovable[0], 0, width);
+	memset(&desc->u.hs.DeviceRemovable[width], 0xff, width);
 }
 
 static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,

drivers/uwb/i1480/dfu/usb.c

···
 static
 int i1480_usb_probe(struct usb_interface *iface, const struct usb_device_id *id)
 {
+	struct usb_device *udev = interface_to_usbdev(iface);
 	struct i1480_usb *i1480_usb;
 	struct i1480 *i1480;
 	struct device *dev = &iface->dev;
···
 			iface->cur_altsetting->desc.bInterfaceNumber);
 		goto error;
 	}
-	if (iface->num_altsetting > 1
-	    && interface_to_usbdev(iface)->descriptor.idProduct == 0xbabe) {
+	if (iface->num_altsetting > 1 &&
+			le16_to_cpu(udev->descriptor.idProduct) == 0xbabe) {
 		/* Need altsetting #1 [HW QUIRK] or EP1 won't work */
 		result = usb_set_interface(interface_to_usbdev(iface), 0, 1);
 		if (result < 0)

drivers/watchdog/Kconfig

···
 
 config ORION_WATCHDOG
 	tristate "Orion watchdog"
-	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
+	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
 	depends on ARM
 	select WATCHDOG_CORE
 	help

drivers/watchdog/bcm_kona_wdt.c

···
 	if (!wdt)
 		return -ENOMEM;
 
+	spin_lock_init(&wdt->lock);
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	wdt->base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(wdt->base))
···
 		return ret;
 	}
 
-	spin_lock_init(&wdt->lock);
 	platform_set_drvdata(pdev, wdt);
 	watchdog_set_drvdata(&bcm_kona_wdt_wdd, wdt);
 	bcm_kona_wdt_wdd.parent = &pdev->dev;

drivers/watchdog/cadence_wdt.c

···
 /* Counter maximum value */
 #define CDNS_WDT_COUNTER_MAX 0xFFF
 
-static int wdt_timeout = CDNS_WDT_DEFAULT_TIMEOUT;
+static int wdt_timeout;
 static int nowayout = WATCHDOG_NOWAYOUT;
 
 module_param(wdt_timeout, int, 0);

drivers/watchdog/iTCO_wdt.c

···
 
 	iTCO_vendor_pre_keepalive(p->smi_res, wd_dev->timeout);
 
-	/* Reload the timer by writing to the TCO Timer Counter register */
-	if (p->iTCO_version >= 2) {
-		outw(0x01, TCO_RLD(p));
-	} else if (p->iTCO_version == 1) {
-		/* Reset the timeout status bit so that the timer
-		 * needs to count down twice again before rebooting */
-		outw(0x0008, TCO1_STS(p));	/* write 1 to clear bit */
+	/* Reset the timeout status bit so that the timer
+	 * needs to count down twice again before rebooting */
+	outw(0x0008, TCO1_STS(p));	/* write 1 to clear bit */
 
+	/* Reload the timer by writing to the TCO Timer Counter register */
+	if (p->iTCO_version >= 2)
+		outw(0x01, TCO_RLD(p));
+	else if (p->iTCO_version == 1)
 		outb(0x01, TCO_RLD(p));
-	}
 
 	spin_unlock(&p->io_lock);
 	return 0;
···
 	unsigned char val8;
 	unsigned int tmrval;
 
-	tmrval = seconds_to_ticks(p, t);
-
-	/* For TCO v1 the timer counts down twice before rebooting */
-	if (p->iTCO_version == 1)
-		tmrval /= 2;
+	/* The timer counts down twice before rebooting */
+	tmrval = seconds_to_ticks(p, t) / 2;
 
 	/* from the specs: */
 	/* "Values of 0h-3h are ignored and should not be attempted" */
···
 		spin_lock(&p->io_lock);
 		val16 = inw(TCO_RLD(p));
 		val16 &= 0x3ff;
+		if (!(inw(TCO1_STS(p)) & 0x0008))
+			val16 += (inw(TCOv2_TMR(p)) & 0x3ff);
 		spin_unlock(&p->io_lock);
 
 		time_left = ticks_to_seconds(p, val16);

drivers/watchdog/pcwd_usb.c

···
 		return -ENODEV;
 	}
 
+	if (iface_desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	/* check out the endpoint: it has to be Interrupt & IN */
 	endpoint = &iface_desc->endpoint[0].desc;
 

drivers/watchdog/sama5d4_wdt.c

···
  * Licensed under GPLv2.
  */
 
+#include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
···
 	struct watchdog_device	wdd;
 	void __iomem		*reg_base;
 	u32			mr;
+	unsigned long		last_ping;
 };
 
 static int wdt_timeout = WDT_DEFAULT_TIMEOUT;
···
 	"Watchdog cannot be stopped once started (default="
 	__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
 
+#define wdt_enabled (!(wdt->mr & AT91_WDT_WDDIS))
+
 #define wdt_read(wdt, field) \
 	readl_relaxed((wdt)->reg_base + (field))
 
-#define wdt_write(wtd, field, val) \
-	writel_relaxed((val), (wdt)->reg_base + (field))
+/* 4 slow clock periods is 4/32768 = 122.07µs*/
+#define WDT_DELAY	usecs_to_jiffies(123)
+
+static void wdt_write(struct sama5d4_wdt *wdt, u32 field, u32 val)
+{
+	/*
+	 * WDT_CR and WDT_MR must not be modified within three slow clock
+	 * periods following a restart of the watchdog performed by a write
+	 * access in WDT_CR.
+	 */
+	while (time_before(jiffies, wdt->last_ping + WDT_DELAY))
+		usleep_range(30, 125);
+	writel_relaxed(val, wdt->reg_base + field);
+	wdt->last_ping = jiffies;
+}
+
+static void wdt_write_nosleep(struct sama5d4_wdt *wdt, u32 field, u32 val)
+{
+	if (time_before(jiffies, wdt->last_ping + WDT_DELAY))
+		udelay(123);
+	writel_relaxed(val, wdt->reg_base + field);
+	wdt->last_ping = jiffies;
+}
 
 static int sama5d4_wdt_start(struct watchdog_device *wdd)
 {
···
 	wdt->mr &= ~AT91_WDT_WDD;
 	wdt->mr |= AT91_WDT_SET_WDV(value);
 	wdt->mr |= AT91_WDT_SET_WDD(value);
-	wdt_write(wdt, AT91_WDT_MR, wdt->mr);
+
+	/*
+	 * WDDIS has to be 0 when updating WDD/WDV. The datasheet states: When
+	 * setting the WDDIS bit, and while it is set, the fields WDV and WDD
+	 * must not be modified.
+	 * If the watchdog is enabled, then the timeout can be updated. Else,
+	 * wait that the user enables it.
+	 */
+	if (wdt_enabled)
+		wdt_write(wdt, AT91_WDT_MR, wdt->mr & ~AT91_WDT_WDDIS);
 
 	wdd->timeout = timeout;
 
···
 
 static int sama5d4_wdt_init(struct sama5d4_wdt *wdt)
 {
-	struct watchdog_device *wdd = &wdt->wdd;
-	u32 value = WDT_SEC2TICKS(wdd->timeout);
 	u32 reg;
-
 	/*
-	 * Because the fields WDV and WDD must not be modified when the WDDIS
-	 * bit is set, so clear the WDDIS bit before writing the WDT_MR.
+	 * When booting and resuming, the bootloader may have changed the
+	 * watchdog configuration.
+	 * If the watchdog is already running, we can safely update it.
+	 * Else, we have to disable it properly.
 	 */
-	reg = wdt_read(wdt, AT91_WDT_MR);
-	reg &= ~AT91_WDT_WDDIS;
-	wdt_write(wdt, AT91_WDT_MR, reg);
-
-	wdt->mr |= AT91_WDT_SET_WDD(value);
-	wdt->mr |= AT91_WDT_SET_WDV(value);
-
-	wdt_write(wdt, AT91_WDT_MR, wdt->mr);
-
+	if (wdt_enabled) {
+		wdt_write_nosleep(wdt, AT91_WDT_MR, wdt->mr);
+	} else {
+		reg = wdt_read(wdt, AT91_WDT_MR);
+		if (!(reg & AT91_WDT_WDDIS))
+			wdt_write_nosleep(wdt, AT91_WDT_MR,
+					  reg | AT91_WDT_WDDIS);
+	}
 	return 0;
 }
 
···
 	struct resource *res;
 	void __iomem *regs;
 	u32 irq = 0;
+	u32 timeout;
 	int ret;
 
 	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
···
 	wdd->ops = &sama5d4_wdt_ops;
 	wdd->min_timeout = MIN_WDT_TIMEOUT;
 	wdd->max_timeout = MAX_WDT_TIMEOUT;
+	wdt->last_ping = jiffies;
 
 	watchdog_set_drvdata(wdd, wdt);
 
···
 		dev_err(&pdev->dev, "unable to set timeout value\n");
 		return ret;
 	}
+
+	timeout = WDT_SEC2TICKS(wdd->timeout);
+
+	wdt->mr |= AT91_WDT_SET_WDD(timeout);
+	wdt->mr |= AT91_WDT_SET_WDV(timeout);
 
 	ret = sama5d4_wdt_init(wdt);
 	if (ret)
···
 {
 	struct sama5d4_wdt *wdt = dev_get_drvdata(dev);
 
-	wdt_write(wdt, AT91_WDT_MR, wdt->mr & ~AT91_WDT_WDDIS);
-	if (wdt->mr & AT91_WDT_WDDIS)
-		wdt_write(wdt, AT91_WDT_MR, wdt->mr);
+	sama5d4_wdt_init(wdt);
 
 	return 0;
 }

drivers/watchdog/wdt_pci.c

···
 		pr_crit("Would Reboot\n");
 #else
 		pr_crit("Initiating system reboot\n");
-		emergency_restart(NULL);
+		emergency_restart();
 #endif
 #else
 		pr_crit("Reset in 5ms\n");

drivers/watchdog/zx2967_wdt.c

···
 
 	base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	wdt->reg_base = devm_ioremap_resource(dev, base);
-	if (IS_ERR(wdt->reg_base)) {
-		dev_err(dev, "ioremap failed\n");
+	if (IS_ERR(wdt->reg_base))
 		return PTR_ERR(wdt->reg_base);
-	}
 
 	zx2967_wdt_reset_sysctrl(dev);
 

fs/cifs/cifsacl.c

···
 	u32 acllen = 0;
 	int rc = 0;
 	struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);
-	struct cifs_tcon *tcon;
+	struct smb_version_operations *ops;
 
 	cifs_dbg(NOISY, "converting ACL to mode for %s\n", path);
 
 	if (IS_ERR(tlink))
 		return PTR_ERR(tlink);
-	tcon = tlink_tcon(tlink);
 
-	if (pfid && (tcon->ses->server->ops->get_acl_by_fid))
-		pntsd = tcon->ses->server->ops->get_acl_by_fid(cifs_sb, pfid,
-							  &acllen);
-	else if (tcon->ses->server->ops->get_acl)
-		pntsd = tcon->ses->server->ops->get_acl(cifs_sb, inode, path,
-							&acllen);
+	ops = tlink_tcon(tlink)->ses->server->ops;
+
+	if (pfid && (ops->get_acl_by_fid))
+		pntsd = ops->get_acl_by_fid(cifs_sb, pfid, &acllen);
+	else if (ops->get_acl)
+		pntsd = ops->get_acl(cifs_sb, inode, path, &acllen);
 	else {
 		cifs_put_tlink(tlink);
 		return -EOPNOTSUPP;
···
 	struct cifs_ntsd *pnntsd = NULL; /* modified acl to be sent to server */
 	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
 	struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);
-	struct cifs_tcon *tcon;
+	struct smb_version_operations *ops;
 
 	if (IS_ERR(tlink))
 		return PTR_ERR(tlink);
-	tcon = tlink_tcon(tlink);
+
+	ops = tlink_tcon(tlink)->ses->server->ops;
 
 	cifs_dbg(NOISY, "set ACL from mode for %s\n", path);
 
 	/* Get the security descriptor */
 
-	if (tcon->ses->server->ops->get_acl == NULL) {
+	if (ops->get_acl == NULL) {
 		cifs_put_tlink(tlink);
 		return -EOPNOTSUPP;
 	}
 
-	pntsd = tcon->ses->server->ops->get_acl(cifs_sb, inode, path,
-						&secdesclen);
+	pntsd = ops->get_acl(cifs_sb, inode, path, &secdesclen);
 	if (IS_ERR(pntsd)) {
 		rc = PTR_ERR(pntsd);
 		cifs_dbg(VFS, "%s: error %d getting sec desc\n", __func__, rc);
···
 
 	cifs_dbg(NOISY, "build_sec_desc rc: %d\n", rc);
 
-	if (tcon->ses->server->ops->set_acl == NULL)
+	if (ops->set_acl == NULL)
 		rc = -EOPNOTSUPP;
 
 	if (!rc) {
 		/* Set the security descriptor */
-		rc = tcon->ses->server->ops->set_acl(pnntsd, secdesclen, inode,
-						     path, aclflag);
+		rc = ops->set_acl(pnntsd, secdesclen, inode, path, aclflag);
 		cifs_dbg(NOISY, "set_cifs_acl rc: %d\n", rc);
 	}
 	cifs_put_tlink(tlink);

fs/cifs/cifsglob.h

···
 	int (*validate_negotiate)(const unsigned int, struct cifs_tcon *);
 	ssize_t (*query_all_EAs)(const unsigned int, struct cifs_tcon *,
 			const unsigned char *, const unsigned char *, char *,
-			size_t, const struct nls_table *, int);
+			size_t, struct cifs_sb_info *);
 	int (*set_EA)(const unsigned int, struct cifs_tcon *, const char *,
 			const char *, const void *, const __u16,
 			const struct nls_table *, int);

fs/cifs/cifsproto.h

···
 extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 			const unsigned char *searchName,
 			const unsigned char *ea_name, char *EAData,
-			size_t bufsize, const struct nls_table *nls_codepage,
-			int remap_special_chars);
+			size_t bufsize, struct cifs_sb_info *cifs_sb);
 extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon,
 		const char *fileName, const char *ea_name,
 		const void *ea_value, const __u16 ea_value_len,

fs/cifs/cifssmb.c

···
 {
 	struct TCP_Server_Info *server = mid->callback_data;
 
-	mutex_lock(&server->srv_mutex);
 	DeleteMidQEntry(mid);
-	mutex_unlock(&server->srv_mutex);
 	add_credits(server, 1, CIFS_ECHO_OP);
 }
 
···
 	}
 
 	queue_work(cifsiod_wq, &rdata->work);
-	mutex_lock(&server->srv_mutex);
 	DeleteMidQEntry(mid);
-	mutex_unlock(&server->srv_mutex);
 	add_credits(server, 1, 0);
 }
 
···
 {
 	struct cifs_writedata *wdata = mid->callback_data;
 	struct cifs_tcon *tcon = tlink_tcon(wdata->cfile->tlink);
-	struct TCP_Server_Info *server = tcon->ses->server;
 	unsigned int written;
 	WRITE_RSP *smb = (WRITE_RSP *)mid->resp_buf;
 
···
 	}
 
 	queue_work(cifsiod_wq, &wdata->work);
-	mutex_lock(&server->srv_mutex);
 	DeleteMidQEntry(mid);
-	mutex_unlock(&server->srv_mutex);
 	add_credits(tcon->ses->server, 1, 0);
 }
 
···
 CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon,
 		const unsigned char *searchName, const unsigned char *ea_name,
 		char *EAData, size_t buf_size,
-		const struct nls_table *nls_codepage, int remap)
+		struct cifs_sb_info *cifs_sb)
 {
 		/* BB assumes one setup word */
 	TRANSACTION2_QPI_REQ *pSMB = NULL;
 	TRANSACTION2_QPI_RSP *pSMBr = NULL;
+	int remap = cifs_remap(cifs_sb);
+	struct nls_table *nls_codepage = cifs_sb->local_nls;
 	int rc = 0;
 	int bytes_returned;
 	int list_len;

fs/cifs/file.c

···
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
 	int rc = 0;
 
-	down_read(&cinode->lock_sem);
+	down_read_nested(&cinode->lock_sem, SINGLE_DEPTH_NESTING);
 	if (cinode->can_cache_brlcks) {
 		/* can cache locks - no need to relock */
 		up_read(&cinode->lock_sem);

fs/cifs/inode.c

···
 
 	rc = tcon->ses->server->ops->query_all_EAs(xid, tcon, path,
 			"SETFILEBITS", ea_value, 4 /* size of buf */,
-			cifs_sb->local_nls,
-			cifs_remap(cifs_sb));
+			cifs_sb);
 	cifs_put_tlink(tlink);
 	if (rc < 0)
 		return (int)rc;

fs/cifs/smb2pdu.c

···
 		goto tcon_exit;
 	}
 
-	if (rsp->ShareType & SMB2_SHARE_TYPE_DISK)
+	switch (rsp->ShareType) {
+	case SMB2_SHARE_TYPE_DISK:
 		cifs_dbg(FYI, "connection to disk share\n");
-	else if (rsp->ShareType & SMB2_SHARE_TYPE_PIPE) {
+		break;
+	case SMB2_SHARE_TYPE_PIPE:
 		tcon->ipc = true;
 		cifs_dbg(FYI, "connection to pipe share\n");
-	} else if (rsp->ShareType & SMB2_SHARE_TYPE_PRINT) {
-		tcon->print = true;
+		break;
+	case SMB2_SHARE_TYPE_PRINT:
+		tcon->ipc = true;
 		cifs_dbg(FYI, "connection to printer\n");
-	} else {
+		break;
+	default:
 		cifs_dbg(VFS, "unknown share type %d\n", rsp->ShareType);
 		rc = -EOPNOTSUPP;
 		goto tcon_error_exit;
···
 	if (mid->mid_state == MID_RESPONSE_RECEIVED)
 		credits_received = le16_to_cpu(rsp->hdr.sync_hdr.CreditRequest);
 
-	mutex_lock(&server->srv_mutex);
 	DeleteMidQEntry(mid);
-	mutex_unlock(&server->srv_mutex);
 	add_credits(server, credits_received, CIFS_ECHO_OP);
 }
 
···
 		cifs_stats_fail_inc(tcon, SMB2_READ_HE);
 
 	queue_work(cifsiod_wq, &rdata->work);
-	mutex_lock(&server->srv_mutex);
 	DeleteMidQEntry(mid);
-	mutex_unlock(&server->srv_mutex);
 	add_credits(server, credits_received, 0);
 }
 
···
 {
 	struct cifs_writedata *wdata = mid->callback_data;
 	struct cifs_tcon *tcon = tlink_tcon(wdata->cfile->tlink);
-	struct TCP_Server_Info *server = tcon->ses->server;
 	unsigned int written;
 	struct smb2_write_rsp *rsp = (struct smb2_write_rsp *)mid->resp_buf;
 	unsigned int credits_received = 1;
···
 		cifs_stats_fail_inc(tcon, SMB2_WRITE_HE);
 
 	queue_work(cifsiod_wq, &wdata->work);
-	mutex_lock(&server->srv_mutex);
 	DeleteMidQEntry(mid);
-	mutex_unlock(&server->srv_mutex);
 	add_credits(tcon->ses->server, credits_received, 0);
 }
 

fs/cifs/transport.c

···
 	now = jiffies;
 	/* commands taking longer than one second are indications that
 	   something is wrong, unless it is quite a slow link or server */
-	if ((now - midEntry->when_alloc) > HZ) {
+	if (time_after(now, midEntry->when_alloc + HZ)) {
 		if ((cifsFYI & CIFS_TIMER) && (midEntry->command != command)) {
 			pr_debug(" CIFS slow rsp: cmd %d mid %llu",
 			       midEntry->command, midEntry->mid);
···
 	}
 	spin_unlock(&GlobalMid_Lock);
 
-	mutex_lock(&server->srv_mutex);
 	DeleteMidQEntry(mid);
-	mutex_unlock(&server->srv_mutex);
 	return rc;
 }
 

fs/cifs/xattr.c

···
 
 		if (pTcon->ses->server->ops->query_all_EAs)
 			rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
-				full_path, name, value, size,
-				cifs_sb->local_nls, cifs_remap(cifs_sb));
+				full_path, name, value, size, cifs_sb);
 		break;
 
 	case XATTR_CIFS_ACL: {
···
 
 	if (pTcon->ses->server->ops->query_all_EAs)
 		rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon,
-				full_path, NULL, data, buf_size,
-				cifs_sb->local_nls, cifs_remap(cifs_sb));
+				full_path, NULL, data, buf_size, cifs_sb);
 list_ea_exit:
 	kfree(full_path);
 	free_xid(xid);

fs/ext2/inode.c

···
 	iomap->bdev = bdev;
 	iomap->offset = (u64)first_block << blkbits;
 	if (blk_queue_dax(bdev->bd_queue))
-		iomap->dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
+		iomap->dax_dev = fs_dax_get_by_host(bdev->bd_disk->disk_name);
 	else
 		iomap->dax_dev = NULL;
 
···
 ext2_iomap_end(struct inode *inode, loff_t offset, loff_t length,
 		ssize_t written, unsigned flags, struct iomap *iomap)
 {
-	put_dax(iomap->dax_dev);
+	fs_put_dax(iomap->dax_dev);
 	if (iomap->type == IOMAP_MAPPED &&
 	    written < length &&
 	    (flags & IOMAP_WRITE))

fs/ext4/inode.c

···
 	bdev = inode->i_sb->s_bdev;
 	iomap->bdev = bdev;
 	if (blk_queue_dax(bdev->bd_queue))
-		iomap->dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
+		iomap->dax_dev = fs_dax_get_by_host(bdev->bd_disk->disk_name);
 	else
 		iomap->dax_dev = NULL;
 	iomap->offset = first_block << blkbits;
···
 	int blkbits = inode->i_blkbits;
 	bool truncate = false;
 
-	put_dax(iomap->dax_dev);
+	fs_put_dax(iomap->dax_dev);
 	if (!(flags & IOMAP_WRITE) || (flags & IOMAP_FAULT))
 		return 0;
 

fs/fuse/inode.c

···
 	int err;
 	char *suffix = "";
 
-	if (sb->s_bdev)
+	if (sb->s_bdev) {
 		suffix = "-fuseblk";
+		/*
+		 * sb->s_bdi points to blkdev's bdi however we want to redirect
+		 * it to our private bdi...
+		 */
+		bdi_put(sb->s_bdi);
+		sb->s_bdi = &noop_backing_dev_info;
+	}
 	err = super_setup_bdi_name(sb, "%u:%u%s", MAJOR(fc->dev),
 				   MINOR(fc->dev), suffix);
 	if (err)

fs/xfs/xfs_iomap.c

···
 	/* optionally associate a dax device with the iomap bdev */
 	bdev = iomap->bdev;
 	if (blk_queue_dax(bdev->bd_queue))
-		iomap->dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
+		iomap->dax_dev = fs_dax_get_by_host(bdev->bd_disk->disk_name);
 	else
 		iomap->dax_dev = NULL;
 
···
 	unsigned		flags,
 	struct iomap		*iomap)
 {
-	put_dax(iomap->dax_dev);
+	fs_put_dax(iomap->dax_dev);
 	if ((flags & IOMAP_WRITE) && iomap->type == IOMAP_DELALLOC)
 		return xfs_file_iomap_end_delalloc(XFS_I(inode), offset,
 				length, written, iomap);

include/kvm/arm_vgic.h

···
 		/* either a GICv2 CPU interface */
 		gpa_t			vgic_cpu_base;
 		/* or a number of GICv3 redistributor regions */
-		gpa_t			vgic_redist_base;
+		struct {
+			gpa_t		vgic_redist_base;
+			gpa_t		vgic_redist_free_offset;
+		};
 	};
 
 	/* distributor enabled */

include/linux/bpf_verifier.h

···
 	 */
 	s64 min_value;
 	u64 max_value;
+	u32 min_align;
+	u32 aux_off;
+	u32 aux_off_align;
 };
 
 enum bpf_stack_slot_type {
···
 	struct bpf_prog *prog;		/* eBPF program being verified */
 	struct bpf_verifier_stack_elem *head; /* stack of verifier states to be processed */
 	int stack_size;			/* number of states to be processed */
+	bool strict_alignment;		/* perform strict pointer alignment checks */
 	struct bpf_verifier_state cur_state; /* current verifier state */
 	struct bpf_verifier_state_list **explored_states; /* search pruning optimization */
 	const struct bpf_ext_analyzer_ops *analyzer_ops; /* external analyzer ops */

include/linux/dax.h

···
 			void **, pfn_t *);
 };
 
-int bdev_dax_pgoff(struct block_device *, sector_t, size_t, pgoff_t *pgoff);
-#if IS_ENABLED(CONFIG_FS_DAX)
-int __bdev_dax_supported(struct super_block *sb, int blocksize);
-static inline int bdev_dax_supported(struct super_block *sb, int blocksize)
-{
-	return __bdev_dax_supported(sb, blocksize);
-}
-#else
-static inline int bdev_dax_supported(struct super_block *sb, int blocksize)
-{
-	return -EOPNOTSUPP;
-}
-#endif
-
 #if IS_ENABLED(CONFIG_DAX)
 struct dax_device *dax_get_by_host(const char *host);
 void put_dax(struct dax_device *dax_dev);
···
 }
 
 static inline void put_dax(struct dax_device *dax_dev)
+{
+}
+#endif
+
+int bdev_dax_pgoff(struct block_device *, sector_t, size_t, pgoff_t *pgoff);
+#if IS_ENABLED(CONFIG_FS_DAX)
+int __bdev_dax_supported(struct super_block *sb, int blocksize);
+static inline int bdev_dax_supported(struct super_block *sb, int blocksize)
+{
+	return __bdev_dax_supported(sb, blocksize);
+}
+
+static inline struct dax_device *fs_dax_get_by_host(const char *host)
+{
+	return dax_get_by_host(host);
+}
+
+static inline void fs_put_dax(struct dax_device *dax_dev)
+{
+	put_dax(dax_dev);
+}
+
+#else
+static inline int bdev_dax_supported(struct super_block *sb, int blocksize)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline struct dax_device *fs_dax_get_by_host(const char *host)
+{
+	return NULL;
+}
+
+static inline void fs_put_dax(struct dax_device *dax_dev)
 {
 }
 #endif

include/linux/kprobes.h

···
 					     int write, void __user *buffer,
 					     size_t *length, loff_t *ppos);
 #endif
+extern void wait_for_kprobe_optimizer(void);
+#else
+static inline void wait_for_kprobe_optimizer(void) { }
 #endif /* CONFIG_OPTPROBES */
 #ifdef CONFIG_KPROBES_ON_FTRACE
 extern void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,

include/linux/mlx5/fs.h

···
 	int max_fte;
 	u32 level;
 	u32 flags;
-	u32 underlay_qpn;
 };
 
 struct mlx5_flow_table *
···
 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
 void mlx5_fc_query_cached(struct mlx5_fc *counter,
 			  u64 *bytes, u64 *packets, u64 *lastuse);
+int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
+int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
+
 #endif

include/linux/netdevice.h

···
 int dev_get_phys_port_name(struct net_device *dev,
 			   char *name, size_t len);
 int dev_change_proto_down(struct net_device *dev, bool proto_down);
-int dev_change_xdp_fd(struct net_device *dev, struct netlink_ext_ack *extack,
-		      int fd, u32 flags);
 struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev);
 struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 				    struct netdev_queue *txq, int *ret);
+
+typedef int (*xdp_op_t)(struct net_device *dev, struct netdev_xdp *xdp);
+int dev_change_xdp_fd(struct net_device *dev, struct netlink_ext_ack *extack,
+		      int fd, u32 flags);
+bool __dev_xdp_attached(struct net_device *dev, xdp_op_t xdp_op);
+
 int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
 int dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
 bool is_skb_forwardable(const struct net_device *dev,

include/linux/nvme-fc-driver.h

···
 
 /* FC Port role bitmask - can merge with FC Port Roles in fc transport */
 #define FC_PORT_ROLE_NVME_INITIATOR	0x10
-#define FC_PORT_ROLE_NVME_TARGET	0x11
-#define FC_PORT_ROLE_NVME_DISCOVERY	0x12
+#define FC_PORT_ROLE_NVME_TARGET	0x20
+#define FC_PORT_ROLE_NVME_DISCOVERY	0x40
 
 
 /**
···
 		 * sequence in one LLDD operation. Errors during Data
 		 * sequence transmit must not allow RSP sequence to be sent.
 		 */
-	NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED = (1 << 1),
-		/* Bit 1: When 0, the LLDD will deliver FCP CMD
-		 * on the CPU it should be affinitized to. Thus work will
-		 * be scheduled on the cpu received on. When 1, the LLDD
-		 * may not deliver the CMD on the CPU it should be worked
-		 * on. The transport should pick a cpu to schedule the work
-		 * on.
-		 */
-	NVMET_FCTGTFEAT_CMD_IN_ISR = (1 << 2),
+	NVMET_FCTGTFEAT_CMD_IN_ISR = (1 << 1),
 		/* Bit 2: When 0, the LLDD is calling the cmd rcv handler
 		 * in a non-isr context, allowing the transport to finish
 		 * op completion in the calling context. When 1, the LLDD
···
 		 * requiring the transport to transition to a workqueue
 		 * for op completion.
 		 */
-	NVMET_FCTGTFEAT_OPDONE_IN_ISR = (1 << 3),
+	NVMET_FCTGTFEAT_OPDONE_IN_ISR = (1 << 2),
 		/* Bit 3: When 0, the LLDD is calling the op done handler
 		 * in a non-isr context, allowing the transport to finish
 		 * op completion in the calling context. When 1, the LLDD

include/linux/of_irq.h

···
 #include <linux/ioport.h>
 #include <linux/of.h>
 
-typedef int const (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
+typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
 
 /*
  * Workarounds only applied to 32bit powermac machines

include/linux/usb/hcd.h

···
 	unsigned		rh_registered:1;/* is root hub registered? */
 	unsigned		rh_pollable:1;	/* may we poll the root hub? */
 	unsigned		msix_enabled:1;	/* driver has MSI-X enabled? */
+	unsigned		msi_enabled:1;	/* driver has MSI enabled? */
 	unsigned		remove_phy:1;	/* auto-remove USB phy */
 
 	/* The next flag is a stopgap, to be removed when all the HCDs

include/net/x25.h

···
 
 /* sysctl_net_x25.c */
 #ifdef CONFIG_SYSCTL
-void x25_register_sysctl(void);
+int x25_register_sysctl(void);
 void x25_unregister_sysctl(void);
 #else
-static inline void x25_register_sysctl(void) {};
+static inline int x25_register_sysctl(void) { return 0; };
 static inline void x25_unregister_sysctl(void) {};
 #endif /* CONFIG_SYSCTL */
 

include/uapi/linux/bpf.h

···
  */
 #define BPF_F_ALLOW_OVERRIDE	(1U << 0)
 
+/* If BPF_F_STRICT_ALIGNMENT is used in BPF_PROG_LOAD command, the
+ * verifier will perform strict alignment checking as if the kernel
+ * has been built with CONFIG_EFFICIENT_UNALIGNED_ACCESS not set,
+ * and NET_IP_ALIGN defined to 2.
+ */
+#define BPF_F_STRICT_ALIGNMENT	(1U << 0)
+
 #define BPF_PSEUDO_MAP_FD	1
 
 /* flags for BPF_MAP_UPDATE_ELEM command */
···
 		__u32		log_size;	/* size of user buffer */
 		__aligned_u64	log_buf;	/* user supplied buffer */
 		__u32		kern_version;	/* checked when prog_type=kprobe */
+		__u32		prog_flags;
 	};
 
 	struct { /* anonymous struct used by BPF_OBJ_* commands */

include/uapi/linux/if_link.h

···
 /* XDP section */
 
 #define XDP_FLAGS_UPDATE_IF_NOEXIST	(1U << 0)
-#define XDP_FLAGS_SKB_MODE		(2U << 0)
+#define XDP_FLAGS_SKB_MODE		(1U << 1)
+#define XDP_FLAGS_DRV_MODE		(1U << 2)
 #define XDP_FLAGS_MASK			(XDP_FLAGS_UPDATE_IF_NOEXIST | \
-					 XDP_FLAGS_SKB_MODE)
+					 XDP_FLAGS_SKB_MODE | \
+					 XDP_FLAGS_DRV_MODE)
+
+/* These are stored into IFLA_XDP_ATTACHED on dump. */
+enum {
+	XDP_ATTACHED_NONE = 0,
+	XDP_ATTACHED_DRV,
+	XDP_ATTACHED_SKB,
+};
 
 enum {
 	IFLA_XDP_UNSPEC,

include/uapi/linux/usb/ch11.h

···
  */
 #define USB_MAXCHILDREN		31
 
+/* See USB 3.1 spec Table 10-5 */
+#define USB_SS_MAXPORTS		15
+
 /*
  * Hub request types
  */

kernel/bpf/syscall.c

···
 EXPORT_SYMBOL_GPL(bpf_prog_get_type);
 
 /* last field in 'union bpf_attr' used by this command */
-#define	BPF_PROG_LOAD_LAST_FIELD kern_version
+#define	BPF_PROG_LOAD_LAST_FIELD prog_flags
 
 static int bpf_prog_load(union bpf_attr *attr)
 {
···
 	bool is_gpl;
 
 	if (CHECK_ATTR(BPF_PROG_LOAD))
+		return -EINVAL;
+
+	if (attr->prog_flags & ~BPF_F_STRICT_ALIGNMENT)
 		return -EINVAL;
 
 	/* copy eBPF program license from user space */

kernel/bpf/verifier.c

···
 	struct bpf_verifier_stack_elem *next;
 };
 
-#define BPF_COMPLEXITY_LIMIT_INSNS	65536
+#define BPF_COMPLEXITY_LIMIT_INSNS	98304
 #define BPF_COMPLEXITY_LIMIT_STACK	1024
 
 #define BPF_MAP_PTR_POISON ((void *)0xeB9F + POISON_POINTER_DELTA)
···
 		if (reg->max_value != BPF_REGISTER_MAX_RANGE)
 			verbose(",max_value=%llu",
 				(unsigned long long)reg->max_value);
+		if (reg->min_align)
+			verbose(",min_align=%u", reg->min_align);
+		if (reg->aux_off)
+			verbose(",aux_off=%u", reg->aux_off);
+		if (reg->aux_off_align)
+			verbose(",aux_off_align=%u", reg->aux_off_align);
 	}
 	for (i = 0; i < MAX_BPF_STACK; i += BPF_REG_SIZE) {
 		if (state->stack_slot_type[i] == STACK_SPILL)
···
 		regs[i].imm = 0;
 		regs[i].min_value = BPF_REGISTER_MIN_RANGE;
 		regs[i].max_value = BPF_REGISTER_MAX_RANGE;
+		regs[i].min_align = 0;
+		regs[i].aux_off = 0;
+		regs[i].aux_off_align = 0;
 	}
 
 	/* frame pointer */
···
 {
 	regs[regno].min_value = BPF_REGISTER_MIN_RANGE;
 	regs[regno].max_value = BPF_REGISTER_MAX_RANGE;
+	regs[regno].min_align = 0;
 }
 
 static void mark_reg_unknown_value_and_range(struct bpf_reg_state *regs,
···
 }
 
 static int check_pkt_ptr_alignment(const struct bpf_reg_state *reg,
-				   int off, int size)
+				   int off, int size, bool strict)
 {
-	if (reg->id && size != 1) {
-		verbose("Unknown alignment. Only byte-sized access allowed in packet access.\n");
-		return -EACCES;
+	int ip_align;
+	int reg_off;
+
+	/* Byte size accesses are always allowed. */
+	if (!strict || size == 1)
+		return 0;
+
+	reg_off = reg->off;
+	if (reg->id) {
+		if (reg->aux_off_align % size) {
+			verbose("Packet access is only %u byte aligned, %d byte access not allowed\n",
+				reg->aux_off_align, size);
+			return -EACCES;
+		}
+		reg_off += reg->aux_off;
 	}
 
-	/* skb->data is NET_IP_ALIGN-ed */
-	if ((NET_IP_ALIGN + reg->off + off) % size != 0) {
+	/* skb->data is NET_IP_ALIGN-ed, but for strict alignment checking
+	 * we force this to 2 which is universally what architectures use
+	 * when they don't set CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS.
+	 */
+	ip_align = strict ? 2 : NET_IP_ALIGN;
+	if ((ip_align + reg_off + off) % size != 0) {
 		verbose("misaligned packet access off %d+%d+%d size %d\n",
-			NET_IP_ALIGN, reg->off, off, size);
+			ip_align, reg_off, off, size);
 		return -EACCES;
 	}
 
···
 }
 
 static int check_val_ptr_alignment(const struct bpf_reg_state *reg,
-				   int size)
+				   int size, bool strict)
 {
-	if (size != 1) {
+	if (strict && size != 1) {
 		verbose("Unknown alignment. Only byte-sized access allowed in value access.\n");
 		return -EACCES;
 	}
···
 	return 0;
 }
 
-static int check_ptr_alignment(const struct bpf_reg_state *reg,
+static int check_ptr_alignment(struct bpf_verifier_env *env,
+			       const struct bpf_reg_state *reg,
 			       int off, int size)
 {
+	bool strict = env->strict_alignment;
+
+	if (!IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS))
+		strict = true;
+
 	switch (reg->type) {
 	case PTR_TO_PACKET:
-		return IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) ? 0 :
-		       check_pkt_ptr_alignment(reg, off, size);
+		return check_pkt_ptr_alignment(reg, off, size, strict);
 	case PTR_TO_MAP_VALUE_ADJ:
-		return IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) ? 0 :
-		       check_val_ptr_alignment(reg, size);
+		return check_val_ptr_alignment(reg, size, strict);
 	default:
 		if (off % size != 0) {
 			verbose("misaligned access off %d size %d\n",
···
 	if (size < 0)
 		return size;
 
-	err = check_ptr_alignment(reg, off, size);
+	err = check_ptr_alignment(env, reg, off, size);
 	if (err)
 		return err;
 
···
 							 value_regno);
 			/* note that reg.[id|off|range] == 0 */
 			state->regs[value_regno].type = reg_type;
+			state->regs[value_regno].aux_off = 0;
+			state->regs[value_regno].aux_off_align = 0;
 		}
 
 	} else if (reg->type == FRAME_PTR || reg->type == PTR_TO_STACK) {
···
 		 */
 		dst_reg->off += imm;
 	} else {
+		bool had_id;
+
 		if (src_reg->type == PTR_TO_PACKET) {
 			/* R6=pkt(id=0,off=0,r=62) R7=imm22; r7 += r6 */
 			tmp_reg = *dst_reg;  /* save r7 state */
···
 				src_reg->imm);
 			return -EACCES;
 		}
+
+		had_id = (dst_reg->id != 0);
+
 		/* dst_reg stays as pkt_ptr type and since some positive
 		 * integer value was added to the pointer, increment its 'id'
 		 */
 		dst_reg->id = ++env->id_gen;
 
-		/* something was added to pkt_ptr, set range and off to zero */
+		/* something was added to pkt_ptr, set range to zero */
+		dst_reg->aux_off += dst_reg->off;
 		dst_reg->off = 0;
 		dst_reg->range = 0;
+		if (had_id)
+			dst_reg->aux_off_align = min(dst_reg->aux_off_align,
+						     src_reg->min_align);
+		else
+			dst_reg->aux_off_align = src_reg->min_align;
 	}
 	return 0;
 }
···
 		reg->min_value = BPF_REGISTER_MIN_RANGE;
 }
 
+static u32 calc_align(u32 imm)
+{
+	if (!imm)
+		return 1U << 31;
+	return imm - ((imm - 1) & imm);
+}
+
 static void adjust_reg_min_max_vals(struct bpf_verifier_env *env,
 				    struct bpf_insn *insn)
 {
···
 	s64 min_val = BPF_REGISTER_MIN_RANGE;
 	u64 max_val = BPF_REGISTER_MAX_RANGE;
 	u8 opcode = BPF_OP(insn->code);
+	u32 dst_align, src_align;
 
 	dst_reg = &regs[insn->dst_reg];
+	src_align = 0;
 	if (BPF_SRC(insn->code) == BPF_X) {
 		check_reg_overflow(&regs[insn->src_reg]);
 		min_val = regs[insn->src_reg].min_value;
···
 		    regs[insn->src_reg].type != UNKNOWN_VALUE) {
 			min_val = BPF_REGISTER_MIN_RANGE;
 			max_val = BPF_REGISTER_MAX_RANGE;
+			src_align = 0;
+		} else {
+			src_align = regs[insn->src_reg].min_align;
 		}
 	} else if (insn->imm < BPF_REGISTER_MAX_RANGE &&
 		   (s64)insn->imm > BPF_REGISTER_MIN_RANGE) {
 		min_val = max_val = insn->imm;
+		src_align = calc_align(insn->imm);
 	}
+
+	dst_align = dst_reg->min_align;
 
 	/* We don't know anything about what was done to this register, mark it
 	 * as unknown.
···
 			dst_reg->min_value += min_val;
 		if (dst_reg->max_value != BPF_REGISTER_MAX_RANGE)
 			dst_reg->max_value += max_val;
+		dst_reg->min_align = min(src_align, dst_align);
 		break;
 	case BPF_SUB:
 		if (dst_reg->min_value != BPF_REGISTER_MIN_RANGE)
 			dst_reg->min_value -= min_val;
 		if (dst_reg->max_value != BPF_REGISTER_MAX_RANGE)
 			dst_reg->max_value -= max_val;
+		dst_reg->min_align = min(src_align, dst_align);
 		break;
 	case BPF_MUL:
 		if (dst_reg->min_value != BPF_REGISTER_MIN_RANGE)
 			dst_reg->min_value *= min_val;
 		if (dst_reg->max_value != BPF_REGISTER_MAX_RANGE)
 			dst_reg->max_value *= max_val;
+		dst_reg->min_align = max(src_align, dst_align);
 		break;
 	case BPF_AND:
 		/* Disallow AND'ing of negative numbers, ain't nobody got time
···
 		else
 			dst_reg->min_value = 0;
 		dst_reg->max_value = max_val;
+		dst_reg->min_align = max(src_align, dst_align);
 		break;
 	case BPF_LSH:
 		/* Gotta have special overflow logic here, if we're shifting
 		 * more than MAX_RANGE then just assume we have an invalid
 		 * range.
 		 */
-		if (min_val > ilog2(BPF_REGISTER_MAX_RANGE))
+		if (min_val > ilog2(BPF_REGISTER_MAX_RANGE)) {
 			dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
-		else if (dst_reg->min_value != BPF_REGISTER_MIN_RANGE)
-			dst_reg->min_value <<= min_val;
-
+			dst_reg->min_align = 1;
+		} else {
+			if (dst_reg->min_value != BPF_REGISTER_MIN_RANGE)
+				dst_reg->min_value <<= min_val;
+			if (!dst_reg->min_align)
+				dst_reg->min_align = 1;
+			dst_reg->min_align <<= min_val;
+		}
 		if (max_val > ilog2(BPF_REGISTER_MAX_RANGE))
 			dst_reg->max_value = BPF_REGISTER_MAX_RANGE;
 		else if (dst_reg->max_value != BPF_REGISTER_MAX_RANGE)
···
 		/* RSH by a negative number is undefined, and the BPF_RSH is an
 		 * unsigned shift, so make the appropriate casts.
 		 */
-		if (min_val < 0 || dst_reg->min_value < 0)
+		if (min_val < 0 || dst_reg->min_value < 0) {
 			dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
-		else
+		} else {
 			dst_reg->min_value =
 				(u64)(dst_reg->min_value) >> min_val;
+		}
+		if (min_val < 0) {
+			dst_reg->min_align = 1;
+		} else {
+			dst_reg->min_align >>= (u64) min_val;
+			if (!dst_reg->min_align)
+				dst_reg->min_align = 1;
+		}
 		if (dst_reg->max_value != BPF_REGISTER_MAX_RANGE)
 			dst_reg->max_value >>= max_val;
 		break;
···
 			regs[insn->dst_reg].imm = insn->imm;
 			regs[insn->dst_reg].max_value = insn->imm;
 			regs[insn->dst_reg].min_value = insn->imm;
+			regs[insn->dst_reg].min_align = calc_align(insn->imm);
 		}
 
 	} else if (opcode > BPF_END) {
···
 				env->explored_states[t + 1] = STATE_LIST_MARK;
 		} else {
 			/* conditional jump with two edges */
+			env->explored_states[t] = STATE_LIST_MARK;
 			ret = push_insn(t, t + 1, FALLTHROUGH, env);
 			if (ret == 1)
 				goto peek_stack;
···
 		     rcur->type != NOT_INIT))
 			continue;
 
+		/* Don't care about the reg->id in this case. */
+		if (rold->type == PTR_TO_MAP_VALUE_OR_NULL &&
+		    rcur->type == PTR_TO_MAP_VALUE_OR_NULL &&
+		    rold->map_ptr == rcur->map_ptr)
+			continue;
+
 		if (rold->type == PTR_TO_PACKET && rcur->type == PTR_TO_PACKET &&
 		    compare_ptrs_to_packet(rold, rcur))
 			continue;
···
 			goto process_bpf_exit;
 		}
 
-		if (log_level && do_print_state) {
-			verbose("\nfrom %d to %d:", prev_insn_idx, insn_idx);
+		if (need_resched())
+			cond_resched();
+
+		if (log_level > 1 || (log_level && do_print_state)) {
+			if (log_level > 1)
+				verbose("%d:", insn_idx);
+			else
+				verbose("\nfrom %d to %d:",
+					prev_insn_idx, insn_idx);
 			print_verifier_state(&env->cur_state);
 			do_print_state = false;
 		}
···
 	} else {
 		log_level = 0;
 	}
+	if (attr->prog_flags & BPF_F_STRICT_ALIGNMENT)
+		env->strict_alignment = true;
+	else
+		env->strict_alignment = false;
 
 	ret = replace_map_fd_with_map_ptr(env);
 	if (ret < 0)
···
 	mutex_lock(&bpf_verifier_lock);
 
 	log_level = 0;
+	env->strict_alignment = false;
 
 	env->explored_states = kcalloc(env->prog->len,
 				       sizeof(struct bpf_verifier_state_list *),

kernel/fork.c

···
 	*/
 	recalc_sigpending();
 	if (signal_pending(current)) {
-		spin_unlock(&current->sighand->siglock);
-		write_unlock_irq(&tasklist_lock);
 		retval = -ERESTARTNOINTR;
+		goto bad_fork_cancel_cgroup;
+	}
+	if (unlikely(!(ns_of_pid(pid)->nr_hashed & PIDNS_HASH_ADDING))) {
+		retval = -ENOMEM;
 		goto bad_fork_cancel_cgroup;
 	}
 
···
 	return p;
 
 bad_fork_cancel_cgroup:
+	spin_unlock(&current->sighand->siglock);
+	write_unlock_irq(&tasklist_lock);
 	cgroup_cancel_fork(p);
 bad_fork_free_pid:
 	cgroup_threadgroup_change_end(current);

kernel/irq/chip.c

···
 	if (!desc)
 		return;
 
-	__irq_do_set_handler(desc, handle, 1, NULL);
 	desc->irq_common_data.handler_data = data;
+	__irq_do_set_handler(desc, handle, 1, NULL);
 
 	irq_put_desc_busunlock(desc, flags);
 }

kernel/kprobes.c

···
 }
 
 /* Wait for completing optimization and unoptimization */
-static void wait_for_kprobe_optimizer(void)
+void wait_for_kprobe_optimizer(void)
 {
 	mutex_lock(&kprobe_mutex);
 
···
 				 * The vaddr this probe is installed will soon
 				 * be vfreed buy not synced to disk. Hence,
 				 * disarming the breakpoint isn't needed.
+				 *
+				 * Note, this will also move any optimized probes
+				 * that are pending to be removed from their
+				 * corresponding lists to the freeing_list and
+				 * will not be touched by the delayed
+				 * kprobe_optimizer work handler.
 				 */
 				kill_kprobe(p);
 			}

kernel/pid_namespace.c

···
 	 * if reparented.
 	 */
 	for (;;) {
-		set_current_state(TASK_UNINTERRUPTIBLE);
+		set_current_state(TASK_INTERRUPTIBLE);
 		if (pid_ns->nr_hashed == init_pids)
 			break;
 		schedule();

kernel/sched/core.c

···
 }
 EXPORT_SYMBOL(schedule);
 
+/*
+ * synchronize_rcu_tasks() makes sure that no task is stuck in preempted
+ * state (have scheduled out non-voluntarily) by making sure that all
+ * tasks have either left the run queue or have gone into user space.
+ * As idle tasks do not do either, they must not ever be preempted
+ * (schedule out non-voluntarily).
+ *
+ * schedule_idle() is similar to schedule_preempt_disable() except that it
+ * never enables preemption because it does not call sched_submit_work().
+ */
+void __sched schedule_idle(void)
+{
+	/*
+	 * As this skips calling sched_submit_work(), which the idle task does
+	 * regardless because that function is a nop when the task is in a
+	 * TASK_RUNNING state, make sure this isn't used someplace that the
+	 * current task can be in any other state. Note, idle is always in the
+	 * TASK_RUNNING state.
+	 */
+	WARN_ON_ONCE(current->state);
+	do {
+		__schedule(false);
+	} while (need_resched());
+}
+
 #ifdef CONFIG_CONTEXT_TRACKING
 asmlinkage __visible void __sched schedule_user(void)
 {

kernel/sched/idle.c

···
 	smp_mb__after_atomic();
 
 	sched_ttwu_pending();
-	schedule_preempt_disabled();
+	schedule_idle();
 
 	if (unlikely(klp_patch_pending(current)))
 		klp_update_patch_state(current);

kernel/sched/sched.h

···
 }
 #endif
 
+extern void schedule_idle(void);
+
 extern void sysrq_sched_debug_show(void);
 extern void sched_init_granularity(void);
 extern void update_max_interval(void);

kernel/trace/blktrace.c

···
 		goto out;
 
 	if (attr == &dev_attr_act_mask) {
-		if (sscanf(buf, "%llx", &value) != 1) {
+		if (kstrtoull(buf, 0, &value)) {
 			/* Assume it is a list of trace category names */
 			ret = blk_trace_str2mask(buf);
 			if (ret < 0)
 				goto out;
 			value = ret;
 		}
-	} else if (sscanf(buf, "%llu", &value) != 1)
+	} else if (kstrtoull(buf, 0, &value))
 		goto out;
 
 	ret = -ENXIO;

kernel/trace/ftrace.c

···
 	int i, ret = -ENODEV;
 	int size;
 
-	if (glob && (strcmp(glob, "*") == 0 || !strlen(glob)))
+	if (!glob || !strlen(glob) || !strcmp(glob, "*"))
 		func_g.search = NULL;
-	else if (glob) {
+	else {
 		int not;
 
 		func_g.type = filter_parse_regex(glob, strlen(glob),
···
  err_unlock_ftrace:
 	mutex_unlock(&ftrace_lock);
 	return ret;
+}
+
+void clear_ftrace_function_probes(struct trace_array *tr)
+{
+	struct ftrace_func_probe *probe, *n;
+
+	list_for_each_entry_safe(probe, n, &tr->func_probes, list)
+		unregister_ftrace_function_probe_func(NULL, tr, probe->probe_ops);
 }
 
 static LIST_HEAD(ftrace_commands);

kernel/trace/trace.c

···
 
 	return 0;
 }
-early_initcall(init_trace_selftests);
+core_initcall(init_trace_selftests);
 #else
 static inline int run_tracer_selftest(struct tracer *type)
 {
···
 void __trace_stack(struct trace_array *tr, unsigned long flags, int skip,
 		   int pc)
 {
-	__ftrace_trace_stack(tr->trace_buffer.buffer, flags, skip, pc, NULL);
+	struct ring_buffer *buffer = tr->trace_buffer.buffer;
+
+	if (rcu_is_watching()) {
+		__ftrace_trace_stack(buffer, flags, skip, pc, NULL);
+		return;
+	}
+
+	/*
+	 * When an NMI triggers, RCU is enabled via rcu_nmi_enter(),
+	 * but if the above rcu_is_watching() failed, then the NMI
+	 * triggered someplace critical, and rcu_irq_enter() should
+	 * not be called from NMI.
+	 */
+	if (unlikely(in_nmi()))
+		return;
+
+	/*
+	 * It is possible that a function is being traced in a
+	 * location that RCU is not watching. A call to
+	 * rcu_irq_enter() will make sure that it is, but there's
+	 * a few internal rcu functions that could be traced
+	 * where that wont work either. In those cases, we just
+	 * do nothing.
+	 */
+	if (unlikely(rcu_irq_enter_disabled()))
+		return;
+
+	rcu_irq_enter_irqson();
+	__ftrace_trace_stack(buffer, flags, skip, pc, NULL);
+	rcu_irq_exit_irqson();
 }
 
 /**
···
 	}
 
 	tracing_set_nop(tr);
+	clear_ftrace_function_probes(tr);
 	event_trace_del_tracer(tr);
 	ftrace_clear_pids(tr);
 	ftrace_destroy_function_files(tr);

kernel/trace/trace.h

···
 extern int
 unregister_ftrace_function_probe_func(char *glob, struct trace_array *tr,
 				      struct ftrace_probe_ops *ops);
+extern void clear_ftrace_function_probes(struct trace_array *tr);
 
 int register_ftrace_command(struct ftrace_func_command *cmd);
 int unregister_ftrace_command(struct ftrace_func_command *cmd);
···
 {
 	return -EINVAL;
 }
+static inline void clear_ftrace_function_probes(struct trace_array *tr)
+{
+}
+
 /*
  * The ops parameter passed in is usually undefined.
  * This must be a macro.

kernel/trace/trace_kprobe.c

···
 
 end:
 	release_all_trace_kprobes();
+	/*
+	 * Wait for the optimizer work to finish. Otherwise it might fiddle
+	 * with probes in already freed __init text.
+	 */
+	wait_for_kprobe_optimizer();
 	if (warn)
 		pr_cont("NG: Some tests are failed. Please check them.\n");
 	else

net/9p/trans_xen.c

···
 			goto error_xenbus;
 	}
 	priv->tag = xenbus_read(xbt, dev->nodename, "tag", NULL);
-	if (!priv->tag) {
-		ret = -EINVAL;
+	if (IS_ERR(priv->tag)) {
+		ret = PTR_ERR(priv->tag);
 		goto error_xenbus;
 	}
 	ret = xenbus_transaction_end(xbt, 0);
···
 	.otherend_changed = xen_9pfs_front_changed,
 };
 
-int p9_trans_xen_init(void)
+static int p9_trans_xen_init(void)
 {
 	if (!xen_domain())
 		return -ENODEV;
···
 }
 module_init(p9_trans_xen_init);
 
-void p9_trans_xen_exit(void)
+static void p9_trans_xen_exit(void)
 {
 	v9fs_unregister_trans(&p9_xen_trans);
 	return xenbus_unregister_driver(&xen_9pfs_front_driver);

net/bridge/br_netlink.c

···
 			return -EPROTONOSUPPORT;
 		}
 	}
+
+	if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
+		__u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
+
+		if (defpvid >= VLAN_VID_MASK)
+			return -EINVAL;
+	}
 #endif
 
 	return 0;

net/core/dev.c

···
 }
 EXPORT_SYMBOL(dev_change_proto_down);
 
+bool __dev_xdp_attached(struct net_device *dev, xdp_op_t xdp_op)
+{
+	struct netdev_xdp xdp;
+
+	memset(&xdp, 0, sizeof(xdp));
+	xdp.command = XDP_QUERY_PROG;
+
+	/* Query must always succeed. */
+	WARN_ON(xdp_op(dev, &xdp) < 0);
+	return xdp.prog_attached;
+}
+
+static int dev_xdp_install(struct net_device *dev, xdp_op_t xdp_op,
+			   struct netlink_ext_ack *extack,
+			   struct bpf_prog *prog)
+{
+	struct netdev_xdp xdp;
+
+	memset(&xdp, 0, sizeof(xdp));
+	xdp.command = XDP_SETUP_PROG;
+	xdp.extack = extack;
+	xdp.prog = prog;
+
+	return xdp_op(dev, &xdp);
+}
+
 /**
  *	dev_change_xdp_fd - set or clear a bpf program for a device rx path
  *	@dev: device
···
 int dev_change_xdp_fd(struct net_device *dev, struct netlink_ext_ack *extack,
 		      int fd, u32 flags)
 {
-	int (*xdp_op)(struct net_device *dev, struct netdev_xdp *xdp);
 	const struct net_device_ops *ops = dev->netdev_ops;
 	struct bpf_prog *prog = NULL;
-	struct netdev_xdp xdp;
+	xdp_op_t xdp_op, xdp_chk;
 	int err;
 
 	ASSERT_RTNL();
 
-	xdp_op = ops->ndo_xdp;
+	xdp_op = xdp_chk = ops->ndo_xdp;
+	if (!xdp_op && (flags & XDP_FLAGS_DRV_MODE))
+		return -EOPNOTSUPP;
 	if (!xdp_op || (flags & XDP_FLAGS_SKB_MODE))
 		xdp_op = generic_xdp_install;
+	if (xdp_op == xdp_chk)
+		xdp_chk = generic_xdp_install;
 
 	if (fd >= 0) {
-		if (flags & XDP_FLAGS_UPDATE_IF_NOEXIST) {
-			memset(&xdp, 0, sizeof(xdp));
-			xdp.command = XDP_QUERY_PROG;
-
-			err = xdp_op(dev, &xdp);
-			if (err < 0)
-				return err;
-			if (xdp.prog_attached)
-				return -EBUSY;
-		}
+		if (xdp_chk && __dev_xdp_attached(dev, xdp_chk))
+			return -EEXIST;
+		if ((flags & XDP_FLAGS_UPDATE_IF_NOEXIST) &&
+		    __dev_xdp_attached(dev, xdp_op))
+			return -EBUSY;
 
 		prog = bpf_prog_get_type(fd, BPF_PROG_TYPE_XDP);
 		if (IS_ERR(prog))
 			return PTR_ERR(prog);
 	}
 
-	memset(&xdp, 0, sizeof(xdp));
-	xdp.command = XDP_SETUP_PROG;
-	xdp.extack = extack;
-	xdp.prog = prog;
-
-	err = xdp_op(dev, &xdp);
+	err = dev_xdp_install(dev, xdp_op, extack, prog);
 	if (err < 0 && prog)
 		bpf_prog_put(prog);
 

net/core/neighbour.c

···
 		lladdr = neigh->ha;
 	}
 
-	if (new & NUD_CONNECTED)
-		neigh->confirmed = jiffies;
-	neigh->updated = jiffies;
-
 	/* If entry was valid and address is not changed,
 	   do not change entry state, if new one is STALE.
 	 */
···
 			    !(flags & NEIGH_UPDATE_F_ADMIN))
 				new = old;
 		}
+	}
+
+	/* Update timestamps only once we know we will make a change to the
+	 * neighbour entry. Otherwise we risk to move the locktime window with
+	 * noop updates and ignore relevant ARP updates.
+	 */
+	if (new != old || lladdr != neigh->ha) {
+		if (new & NUD_CONNECTED)
+			neigh->confirmed = jiffies;
+		neigh->updated = jiffies;
 	}
 
 	if (new != old) {

net/core/rtnetlink.c

···
 static size_t rtnl_xdp_size(void)
 {
 	size_t xdp_size = nla_total_size(0) +	/* nest IFLA_XDP */
-			  nla_total_size(1) +	/* XDP_ATTACHED */
-			  nla_total_size(4);	/* XDP_FLAGS */
+			  nla_total_size(1);	/* XDP_ATTACHED */
 
 	return xdp_size;
 }
···
 	return 0;
 }
 
+static u8 rtnl_xdp_attached_mode(struct net_device *dev)
+{
+	const struct net_device_ops *ops = dev->netdev_ops;
+
+	ASSERT_RTNL();
+
+	if (rcu_access_pointer(dev->xdp_prog))
+		return XDP_ATTACHED_SKB;
+	if (ops->ndo_xdp && __dev_xdp_attached(dev, ops->ndo_xdp))
+		return XDP_ATTACHED_DRV;
+
+	return XDP_ATTACHED_NONE;
+}
+
 static int rtnl_xdp_fill(struct sk_buff *skb, struct net_device *dev)
 {
 	struct nlattr *xdp;
-	u32 xdp_flags = 0;
-	u8 val = 0;
 	int err;
 
 	xdp = nla_nest_start(skb, IFLA_XDP);
 	if (!xdp)
 		return -EMSGSIZE;
-	if (rcu_access_pointer(dev->xdp_prog)) {
-		xdp_flags = XDP_FLAGS_SKB_MODE;
-		val = 1;
-	} else if (dev->netdev_ops->ndo_xdp) {
-		struct netdev_xdp xdp_op = {};
 
-		xdp_op.command = XDP_QUERY_PROG;
-		err = dev->netdev_ops->ndo_xdp(dev, &xdp_op);
-		if (err)
-			goto err_cancel;
-		val = xdp_op.prog_attached;
-	}
-	err = nla_put_u8(skb, IFLA_XDP_ATTACHED, val);
+	err = nla_put_u8(skb, IFLA_XDP_ATTACHED,
+			 rtnl_xdp_attached_mode(dev));
 	if (err)
 		goto err_cancel;
 
-	if (xdp_flags) {
-		err = nla_put_u32(skb, IFLA_XDP_FLAGS, xdp_flags);
-		if (err)
-			goto err_cancel;
-	}
 	nla_nest_end(skb, xdp);
 	return 0;
 
···
 					       cb->nlh->nlmsg_seq, 0,
 					       flags,
 					       ext_filter_mask);
-			/* If we ran out of room on the first message,
-			 * we're in trouble
-			 */
-			WARN_ON((err == -EMSGSIZE) && (skb->len == 0));
 
-			if (err < 0)
-				goto out;
+			if (err < 0) {
+				if (likely(skb->len))
+					goto out;
+
+				goto out_err;
+			}
 
 			nl_dump_check_consistent(cb, nlmsg_hdr(skb));
 cont:
···
 		}
 	}
 out:
+	err = skb->len;
+out_err:
 	cb->args[1] = idx;
 	cb->args[0] = h;
 
-	return skb->len;
+	return err;
 }
 
 int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len,
···
 		if (xdp[IFLA_XDP_FLAGS]) {
 			xdp_flags = nla_get_u32(xdp[IFLA_XDP_FLAGS]);
 			if (xdp_flags & ~XDP_FLAGS_MASK) {
+				err = -EINVAL;
+				goto errout;
+			}
+			if ((xdp_flags & XDP_FLAGS_SKB_MODE) &&
+			    (xdp_flags & XDP_FLAGS_DRV_MODE)) {
 				err = -EINVAL;
 				goto errout;
 			}
···
 				err = br_dev->netdev_ops->ndo_bridge_getlink(
 						skb, portid, seq, dev,
 						filter_mask, NLM_F_MULTI);
-				if (err < 0 && err != -EOPNOTSUPP)
-					break;
+				if (err < 0 && err != -EOPNOTSUPP) {
+					if (likely(skb->len))
+						break;
+
+					goto out_err;
+				}
 			}
 			idx++;
 		}
···
 							      seq, dev,
 							      filter_mask,
 							      NLM_F_MULTI);
-				if (err < 0 && err != -EOPNOTSUPP)
-					break;
+				if (err < 0 && err != -EOPNOTSUPP) {
+					if (likely(skb->len))
+						break;
+
+					goto out_err;
+				}
 			}
 			idx++;
 		}
 	}
+	err = skb->len;
+out_err:
 	rcu_read_unlock();
 	cb->args[0] = idx;
 
-	return skb->len;
+	return err;
 }
 
 static inline size_t bridge_nlmsg_size(void)

net/core/sock.c

···
 
 #include <trace/events/sock.h>
 
-#ifdef CONFIG_INET
 #include <net/tcp.h>
-#endif
-
 #include <net/busy_poll.h>
 
 static DEFINE_MUTEX(proto_list_mutex);
···
  * delay queue. We want to allow the owner socket to send more
  * packets, as if they were already TX completed by a typical driver.
  * But we also want to keep skb->sk set because some packet schedulers
- * rely on it (sch_fq for example). So we set skb->truesize to a small
- * amount (1) and decrease sk_wmem_alloc accordingly.
+ * rely on it (sch_fq for example).
  */
 void skb_orphan_partial(struct sk_buff *skb)
 {
-	/* If this skb is a TCP pure ACK or already went here,
-	 * we have nothing to do. 2 is already a very small truesize.
-	 */
-	if (skb->truesize <= 2)
+	if (skb_is_tcp_pure_ack(skb))
 		return;
 
-	/* TCP stack sets skb->ooo_okay based on sk_wmem_alloc,
-	 * so we do not completely orphan skb, but transfert all
-	 * accounted bytes but one, to avoid unexpected reorders.
-	 */
 	if (skb->destructor == sock_wfree
 #ifdef CONFIG_INET
 	    || skb->destructor == tcp_wfree
 #endif
 		) {
-		atomic_sub(skb->truesize - 1, &skb->sk->sk_wmem_alloc);
-		skb->truesize = 1;
+		struct sock *sk = skb->sk;
+
+		if (atomic_inc_not_zero(&sk->sk_refcnt)) {
+			atomic_sub(skb->truesize, &sk->sk_wmem_alloc);
+			skb->destructor = sock_efree;
+		}
 	} else {
 		skb_orphan(skb);
 	}

net/dccp/ipv6.c

···
 		newsk->sk_backlog_rcv = dccp_v4_do_rcv;
 		newnp->pktoptions  = NULL;
 		newnp->opt	   = NULL;
+		newnp->ipv6_mc_list = NULL;
+		newnp->ipv6_ac_list = NULL;
+		newnp->ipv6_fl_list = NULL;
 		newnp->mcast_oif   = inet6_iif(skb);
 		newnp->mcast_hops  = ipv6_hdr(skb)->hop_limit;
 
···
 	/* Clone RX bits */
 	newnp->rxopt.all = np->rxopt.all;
 
+	newnp->ipv6_mc_list = NULL;
+	newnp->ipv6_ac_list = NULL;
+	newnp->ipv6_fl_list = NULL;
 	newnp->pktoptions = NULL;
 	newnp->opt	  = NULL;
 	newnp->mcast_oif  = inet6_iif(skb);

net/ipv4/arp.c

···
 	unsigned char *arp_ptr;
 	struct rtable *rt;
 	unsigned char *sha;
+	unsigned char *tha = NULL;
 	__be32 sip, tip;
 	u16 dev_type = dev->type;
 	int addr_type;
···
 		break;
 #endif
 	default:
+		tha = arp_ptr;
 		arp_ptr += dev->addr_len;
 	}
 	memcpy(&tip, arp_ptr, 4);
···
 		   It is possible, that this option should be enabled for some
 		   devices (strip is candidate)
 		 */
-		is_garp = arp->ar_op == htons(ARPOP_REQUEST) && tip == sip &&
-			  addr_type == RTN_UNICAST;
+		is_garp = tip == sip && addr_type == RTN_UNICAST;
+
+		/* Unsolicited ARP _replies_ also require target hwaddr to be
+		 * the same as source.
+		 */
+		if (is_garp && arp->ar_op == htons(ARPOP_REPLY))
+			is_garp =
+				/* IPv4 over IEEE 1394 doesn't provide target
+				 * hardware address field in its ARP payload.
+				 */
+				tha &&
+				!memcmp(tha, sha, dev->addr_len);
 
 		if (!n &&
 		    ((arp->ar_op == htons(ARPOP_REPLY)  &&

net/ipv4/fib_frontend.c

···
 	unsigned int e = 0, s_e;
 	struct fib_table *tb;
 	struct hlist_head *head;
-	int dumped = 0;
+	int dumped = 0, err;
 
 	if (nlmsg_len(cb->nlh) >= sizeof(struct rtmsg) &&
 	    ((struct rtmsg *) nlmsg_data(cb->nlh))->rtm_flags & RTM_F_CLONED)
···
 			if (dumped)
 				memset(&cb->args[2], 0, sizeof(cb->args) -
 						 2 * sizeof(cb->args[0]));
-			if (fib_table_dump(tb, skb, cb) < 0)
-				goto out;
+			err = fib_table_dump(tb, skb, cb);
+			if (err < 0) {
+				if (likely(skb->len))
+					goto out;
+
+				goto out_err;
+			}
 			dumped = 1;
 next:
 			e++;
 		}
 	}
 out:
+	err = skb->len;
+out_err:
 	rcu_read_unlock();
 
 	cb->args[1] = e;
 	cb->args[0] = h;
 
-	return skb->len;
+	return err;
 }
 
 /* Prepare and feed intra-kernel routing request.

net/ipv4/fib_trie.c

···
 
 	/* rcu_read_lock is hold by caller */
 	hlist_for_each_entry_rcu(fa, &l->leaf, fa_list) {
+		int err;
+
 		if (i < s_i) {
 			i++;
 			continue;
···
 			continue;
 		}
 
-		if (fib_dump_info(skb, NETLINK_CB(cb->skb).portid,
-				  cb->nlh->nlmsg_seq,
-				  RTM_NEWROUTE,
-				  tb->tb_id,
-				  fa->fa_type,
-				  xkey,
-				  KEYLENGTH - fa->fa_slen,
-				  fa->fa_tos,
-				  fa->fa_info, NLM_F_MULTI) < 0) {
+		err = fib_dump_info(skb, NETLINK_CB(cb->skb).portid,
+				    cb->nlh->nlmsg_seq, RTM_NEWROUTE,
+				    tb->tb_id, fa->fa_type,
+				    xkey, KEYLENGTH - fa->fa_slen,
+				    fa->fa_tos, fa->fa_info, NLM_F_MULTI);
+		if (err < 0) {
 			cb->args[4] = i;
-			return -1;
+			return err;
 		}
 		i++;
 	}
···
 	t_key key = cb->args[3];
 
 	while ((l = leaf_walk_rcu(&tp, key)) != NULL) {
-		if (fn_trie_dump_leaf(l, tb, skb, cb) < 0) {
+		int err;
+
+		err = fn_trie_dump_leaf(l, tb, skb, cb);
+		if (err < 0) {
 			cb->args[3] = key;
 			cb->args[2] = count;
-			return -1;
+			return err;
 		}
 
 		++count;

net/ipv4/ipmr.c

···
 	struct net *net = dev_net(skb->dev);
 	int local = skb_rtable(skb)->rt_flags & RTCF_LOCAL;
 	struct mr_table *mrt;
+	struct net_device *dev;
+
+	/* skb->dev passed in is the loX master dev for vrfs.
+	 * As there are no vifs associated with loopback devices,
+	 * get the proper interface that does have a vif associated with it.
+	 */
+	dev = skb->dev;
+	if (netif_is_l3_master(skb->dev)) {
+		dev = dev_get_by_index_rcu(net, IPCB(skb)->iif);
+		if (!dev) {
+			kfree_skb(skb);
+			return -ENODEV;
+		}
+	}
 
 	/* Packet is looped back after forward, it should not be
 	 * forwarded second time, but still can be delivered locally.
···
 	/* already under rcu_read_lock() */
 	cache = ipmr_cache_find(mrt, ip_hdr(skb)->saddr, ip_hdr(skb)->daddr);
 	if (!cache) {
-		int vif = ipmr_find_vif(mrt, skb->dev);
+		int vif = ipmr_find_vif(mrt, dev);
 
 		if (vif >= 0)
 			cache = ipmr_cache_find_any(mrt, ip_hdr(skb)->daddr,
···
 		}
 
 		read_lock(&mrt_lock);
-		vif = ipmr_find_vif(mrt, skb->dev);
+		vif = ipmr_find_vif(mrt, dev);
 		if (vif >= 0) {
 			int err2 = ipmr_cache_unresolved(mrt, vif, skb);
 			read_unlock(&mrt_lock);

net/ipv4/tcp_input.c

···
 		 */
 		if (pkt_len > mss) {
 			unsigned int new_len = (pkt_len / mss) * mss;
-			if (!in_sack && new_len < pkt_len) {
+			if (!in_sack && new_len < pkt_len)
 				new_len += mss;
-				if (new_len >= skb->len)
-					return 0;
-			}
 			pkt_len = new_len;
 		}
+
+		if (pkt_len >= skb->len && !in_sack)
+			return 0;
+
 		err = tcp_fragment(sk, skb, pkt_len, mss, GFP_ATOMIC);
 		if (err < 0)
 			return err;
···
 			int delta;
 
 			/* Non-retransmitted hole got filled? That's reordering */
-			if (reord < prior_fackets)
+			if (reord < prior_fackets && reord <= tp->fackets_out)
 				tcp_update_reordering(sk, tp->fackets_out - reord, 0);
 
 			delta = tcp_is_fack(tp) ? pkts_acked :

net/ipv4/udp.c

···
 	udp_lib_rehash(sk, new_hash);
 }
 
-int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+static int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	int rc;
 
···
  * Note that in the success and error cases, the skb is assumed to
  * have either been requeued or freed.
  */
-int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+static int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	struct udp_sock *up = udp_sk(sk);
 	int is_udplite = IS_UDPLITE(sk);

net/ipv4/udp_impl.h

···
 		int flags, int *addr_len);
 int udp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,
 		 int flags);
-int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
 void udp_destroy_sock(struct sock *sk);
 
 #ifdef CONFIG_PROC_FS

net/ipv6/addrconf.c

···
 	INIT_HLIST_NODE(&ifa->addr_lst);
 	ifa->scope = scope;
 	ifa->prefix_len = pfxlen;
-	ifa->flags = flags | IFA_F_TENTATIVE;
+	ifa->flags = flags;
+	/* No need to add the TENTATIVE flag for addresses with NODAD */
+	if (!(flags & IFA_F_NODAD))
+		ifa->flags |= IFA_F_TENTATIVE;
 	ifa->valid_lft = valid_lft;
 	ifa->prefered_lft = prefered_lft;
 	ifa->cstamp = ifa->tstamp = jiffies;

net/ipv6/ip6_offload.c

···
 	const struct net_offload *ops;
 	int proto;
 	struct frag_hdr *fptr;
-	unsigned int unfrag_ip6hlen;
 	unsigned int payload_len;
 	u8 *prevhdr;
 	int offset = 0;
···
 		skb->network_header = (u8 *)ipv6h - skb->head;
 
 		if (udpfrag) {
-			unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
-			fptr = (struct frag_hdr *)((u8 *)ipv6h + unfrag_ip6hlen);
+			int err = ip6_find_1stfragopt(skb, &prevhdr);
+			if (err < 0)
+				return ERR_PTR(err);
+			fptr = (struct frag_hdr *)((u8 *)ipv6h + err);
 			fptr->frag_off = htons(offset);
 			if (skb->next)
 				fptr->frag_off |= htons(IP6_MF);

net/ipv6/ip6_output.c

···
 	int ptr, offset = 0, err = 0;
 	u8 *prevhdr, nexthdr = 0;
 
-	hlen = ip6_find_1stfragopt(skb, &prevhdr);
+	err = ip6_find_1stfragopt(skb, &prevhdr);
+	if (err < 0)
+		goto fail;
+	hlen = err;
 	nexthdr = *prevhdr;
 
 	mtu = ip6_skb_dst_mtu(skb);

net/ipv6/output_core.c

···
 int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 {
 	u16 offset = sizeof(struct ipv6hdr);
-	struct ipv6_opt_hdr *exthdr =
-				(struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
 	unsigned int packet_len = skb_tail_pointer(skb) -
 		skb_network_header(skb);
 	int found_rhdr = 0;
 	*nexthdr = &ipv6_hdr(skb)->nexthdr;
 
-	while (offset + 1 <= packet_len) {
+	while (offset <= packet_len) {
+		struct ipv6_opt_hdr *exthdr;
 
 		switch (**nexthdr) {
 
···
 			return offset;
 		}
 
-		offset += ipv6_optlen(exthdr);
-		*nexthdr = &exthdr->nexthdr;
+		if (offset + sizeof(struct ipv6_opt_hdr) > packet_len)
+			return -EINVAL;
+
 		exthdr = (struct ipv6_opt_hdr *)(skb_network_header(skb) +
 						 offset);
+		offset += ipv6_optlen(exthdr);
+		*nexthdr = &exthdr->nexthdr;
 	}
 
-	return offset;
+	return -EINVAL;
 }
 EXPORT_SYMBOL(ip6_find_1stfragopt);
 

net/ipv6/tcp_ipv6.c

···
 		newtp->af_specific = &tcp_sock_ipv6_mapped_specific;
 #endif
 
+		newnp->ipv6_mc_list = NULL;
 		newnp->ipv6_ac_list = NULL;
 		newnp->ipv6_fl_list = NULL;
 		newnp->pktoptions  = NULL;
···
 	   First: no IPv4 options.
 	 */
 	newinet->inet_opt = NULL;
+	newnp->ipv6_mc_list = NULL;
 	newnp->ipv6_ac_list = NULL;
 	newnp->ipv6_fl_list = NULL;
 

net/ipv6/udp.c

···
 	return;
 }
 
-int __udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+static int __udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	int rc;
 
···
 }
 EXPORT_SYMBOL(udpv6_encap_enable);
 
-int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+static int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	struct udp_sock *up = udp_sk(sk);
 	int is_udplite = IS_UDPLITE(sk);

net/ipv6/udp_impl.h

···
 int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len);
 int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
 		  int flags, int *addr_len);
-int __udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
 void udpv6_destroy_sock(struct sock *sk);
 
 #ifdef CONFIG_PROC_FS

net/ipv6/udp_offload.c

···
 	u8 frag_hdr_sz = sizeof(struct frag_hdr);
 	__wsum csum;
 	int tnl_hlen;
+	int err;
 
 	mss = skb_shinfo(skb)->gso_size;
 	if (unlikely(skb->len <= mss))
···
 		/* Find the unfragmentable header and shift it left by frag_hdr_sz
 		 * bytes to insert fragment header.
 		 */
-		unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
+		err = ip6_find_1stfragopt(skb, &prevhdr);
+		if (err < 0)
+			return ERR_PTR(err);
+		unfrag_ip6hlen = err;
 		nexthdr = *prevhdr;
 		*prevhdr = NEXTHDR_FRAGMENT;
 		unfrag_len = (skb_network_header(skb) - skb_mac_header(skb)) +

net/packet/af_packet.c

···
 		dev = dev_get_by_index(sock_net(&po->sk), saddr->sll_ifindex);
 	}
 
-	sockc.tsflags = po->sk.sk_tsflags;
-	if (msg->msg_controllen) {
-		err = sock_cmsg_send(&po->sk, msg, &sockc);
-		if (unlikely(err))
-			goto out;
-	}
-
 	err = -ENXIO;
 	if (unlikely(dev == NULL))
 		goto out;
 	err = -ENETDOWN;
 	if (unlikely(!(dev->flags & IFF_UP)))
 		goto out_put;
+
+	sockc.tsflags = po->sk.sk_tsflags;
+	if (msg->msg_controllen) {
+		err = sock_cmsg_send(&po->sk, msg, &sockc);
+		if (unlikely(err))
+			goto out_put;
+	}
 
 	if (po->sk.sk_socket->type == SOCK_RAW)
 		reserve = dev->hard_header_len;

net/sched/sch_api.c

···
 	if (!qdisc_dev(root))
 		return 0;
 
+	if (tcm->tcm_parent) {
+		q = qdisc_match_from_root(root, TC_H_MAJ(tcm->tcm_parent));
+		if (q && tc_dump_tclass_qdisc(q, skb, tcm, cb, t_p, s_t) < 0)
+			return -1;
+		return 0;
+	}
 	hash_for_each(qdisc_dev(root)->qdisc_hash, b, q, hash) {
 		if (tc_dump_tclass_qdisc(q, skb, tcm, cb, t_p, s_t) < 0)
 			return -1;

net/sctp/ipv6.c

···
 	struct sctp_bind_addr *bp;
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct sctp_sockaddr_entry *laddr;
-	union sctp_addr *baddr = NULL;
 	union sctp_addr *daddr = &t->ipaddr;
 	union sctp_addr dst_saddr;
 	struct in6_addr *final_p, final;
 	__u8 matchlen = 0;
-	__u8 bmatchlen;
 	sctp_scope_t scope;
 
 	memset(fl6, 0, sizeof(struct flowi6));
···
 	 */
 	rcu_read_lock();
 	list_for_each_entry_rcu(laddr, &bp->address_list, list) {
-		if (!laddr->valid)
+		struct dst_entry *bdst;
+		__u8 bmatchlen;
+
+		if (!laddr->valid ||
+		    laddr->state != SCTP_ADDR_SRC ||
+		    laddr->a.sa.sa_family != AF_INET6 ||
+		    scope > sctp_scope(&laddr->a))
 			continue;
-		if ((laddr->state == SCTP_ADDR_SRC) &&
-		    (laddr->a.sa.sa_family == AF_INET6) &&
-		    (scope <= sctp_scope(&laddr->a))) {
-			bmatchlen = sctp_v6_addr_match_len(daddr, &laddr->a);
-			if (!baddr || (matchlen < bmatchlen)) {
-				baddr = &laddr->a;
-				matchlen = bmatchlen;
-			}
-		}
-	}
-	if (baddr) {
-		fl6->saddr = baddr->v6.sin6_addr;
-		fl6->fl6_sport = baddr->v6.sin6_port;
+
+		fl6->saddr = laddr->a.v6.sin6_addr;
+		fl6->fl6_sport = laddr->a.v6.sin6_port;
 		final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &final);
-		dst = ip6_dst_lookup_flow(sk, fl6, final_p);
+		bdst = ip6_dst_lookup_flow(sk, fl6, final_p);
+
+		if (!IS_ERR(bdst) &&
+		    ipv6_chk_addr(dev_net(bdst->dev),
+				  &laddr->a.v6.sin6_addr, bdst->dev, 1)) {
+			if (!IS_ERR_OR_NULL(dst))
+				dst_release(dst);
+			dst = bdst;
+			break;
+		}
+
+		bmatchlen = sctp_v6_addr_match_len(daddr, &laddr->a);
+		if (matchlen > bmatchlen)
+			continue;
+
+		if (!IS_ERR_OR_NULL(dst))
+			dst_release(dst);
+		dst = bdst;
+		matchlen = bmatchlen;
 	}
 	rcu_read_unlock();
 
···
 	newnp = inet6_sk(newsk);
 
 	memcpy(newnp, np, sizeof(struct ipv6_pinfo));
+	newnp->ipv6_mc_list = NULL;
+	newnp->ipv6_ac_list = NULL;
+	newnp->ipv6_fl_list = NULL;
 
 	rcu_read_lock();
 	opt = rcu_dereference(np->opt);

net/smc/Kconfig

···
 	  The Linux implementation of the SMC-R solution is designed as
 	  a separate socket family SMC.
 
+	  Warning: SMC will expose all memory for remote reads and writes
+	  once a connection is established.  Don't enable this option except
+	  for tightly controlled lab environment.
+
 	  Select this option if you want to run SMC socket applications
 
 config SMC_DIAG

net/smc/smc_clc.c

···
 	memcpy(&cclc.lcl.mac, &link->smcibdev->mac[link->ibport - 1], ETH_ALEN);
 	hton24(cclc.qpn, link->roce_qp->qp_num);
 	cclc.rmb_rkey =
-		htonl(conn->rmb_desc->mr_rx[SMC_SINGLE_LINK]->rkey);
+		htonl(conn->rmb_desc->rkey[SMC_SINGLE_LINK]);
 	cclc.conn_idx = 1; /* for now: 1 RMB = 1 RMBE */
 	cclc.rmbe_alert_token = htonl(conn->alert_token_local);
 	cclc.qp_mtu = min(link->path_mtu, link->peer_mtu);
···
 	memcpy(&aclc.lcl.mac, link->smcibdev->mac[link->ibport - 1], ETH_ALEN);
 	hton24(aclc.qpn, link->roce_qp->qp_num);
 	aclc.rmb_rkey =
-		htonl(conn->rmb_desc->mr_rx[SMC_SINGLE_LINK]->rkey);
+		htonl(conn->rmb_desc->rkey[SMC_SINGLE_LINK]);
 	aclc.conn_idx = 1;			/* as long as 1 RMB = 1 RMBE */
 	aclc.rmbe_alert_token = htonl(conn->alert_token_local);
 	aclc.qp_mtu = link->path_mtu;

net/smc/smc_core.c

···
 			rmb_desc = NULL;
 			continue; /* if mapping failed, try smaller one */
 		}
-		rc = smc_ib_get_memory_region(lgr->lnk[SMC_SINGLE_LINK].roce_pd,
-					      IB_ACCESS_REMOTE_WRITE |
-					      IB_ACCESS_LOCAL_WRITE,
-					     &rmb_desc->mr_rx[SMC_SINGLE_LINK]);
-		if (rc) {
-			smc_ib_buf_unmap(lgr->lnk[SMC_SINGLE_LINK].smcibdev,
-					 tmp_bufsize, rmb_desc,
-					 DMA_FROM_DEVICE);
-			kfree(rmb_desc->cpu_addr);
-			kfree(rmb_desc);
-			rmb_desc = NULL;
-			continue;
-		}
+		rmb_desc->rkey[SMC_SINGLE_LINK] =
+			lgr->lnk[SMC_SINGLE_LINK].roce_pd->unsafe_global_rkey;
 		rmb_desc->used = 1;
 		write_lock_bh(&lgr->rmbs_lock);
 		list_add(&rmb_desc->list,
···
 
 	for (i = 0; i < SMC_RMBS_PER_LGR_MAX; i++) {
 		if ((lgr->rtokens[i][SMC_SINGLE_LINK].rkey == rkey) &&
+		    (lgr->rtokens[i][SMC_SINGLE_LINK].dma_addr == dma_addr) &&
 		    test_bit(i, lgr->rtokens_used_mask)) {
 			conn->rtoken_idx = i;
 			return 0;

net/smc/smc_core.h

···
 	u64			dma_addr[SMC_LINKS_PER_LGR_MAX];
 						/* mapped address of buffer */
 	void			*cpu_addr;	/* virtual address of buffer */
-	struct ib_mr		*mr_rx[SMC_LINKS_PER_LGR_MAX];
+	u32			rkey[SMC_LINKS_PER_LGR_MAX];
 						/* for rmb only:
 						 * rkey provided to peer
 						 */

net/smc/smc_ib.c

···
 								 * identifier
 								 */
 
-int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags,
-			     struct ib_mr **mr)
-{
-	int rc;
-
-	if (*mr)
-		return 0; /* already done */
-
-	/* obtain unique key -
-	 * next invocation of get_dma_mr returns a different key!
-	 */
-	*mr = pd->device->get_dma_mr(pd, access_flags);
-	rc = PTR_ERR_OR_ZERO(*mr);
-	if (IS_ERR(*mr))
-		*mr = NULL;
-	return rc;
-}
-
 static int smc_ib_modify_qp_init(struct smc_link *lnk)
 {
 	struct ib_qp_attr qp_attr;
···
 {
 	int rc;
 
-	lnk->roce_pd = ib_alloc_pd(lnk->smcibdev->ibdev, 0);
+	lnk->roce_pd = ib_alloc_pd(lnk->smcibdev->ibdev,
+				   IB_PD_UNSAFE_GLOBAL_RKEY);
 	rc = PTR_ERR_OR_ZERO(lnk->roce_pd);
 	if (IS_ERR(lnk->roce_pd))
 		lnk->roce_pd = NULL;

net/smc/smc_ib.h

···
 int smc_ib_create_protection_domain(struct smc_link *lnk);
 void smc_ib_destroy_queue_pair(struct smc_link *lnk);
 int smc_ib_create_queue_pair(struct smc_link *lnk);
-int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags,
-			     struct ib_mr **mr);
 int smc_ib_ready_link(struct smc_link *lnk);
 int smc_ib_modify_qp_rts(struct smc_link *lnk);
 int smc_ib_modify_qp_reset(struct smc_link *lnk);

net/tipc/socket.c

···
 	return 0;
 }
 
-#define tipc_wait_for_cond(sock_, timeout_, condition_)			\
-({								        \
-	int rc_ = 0;							\
-	int done_ = 0;							\
-									\
-	while (!(condition_) && !done_) {				\
-		struct sock *sk_ = sock->sk;				\
-		DEFINE_WAIT_FUNC(wait_, woken_wake_function);		\
-									\
-		rc_ = tipc_sk_sock_err(sock_, timeout_);		\
-		if (rc_)						\
-			break;						\
-		prepare_to_wait(sk_sleep(sk_), &wait_,			\
-				TASK_INTERRUPTIBLE);			\
-		done_ = sk_wait_event(sk_, timeout_,			\
-				      (condition_), &wait_);		\
-		remove_wait_queue(sk_sleep(sk_), &wait_);		\
-	}								\
-	rc_;								\
+#define tipc_wait_for_cond(sock_, timeo_, condition_)			       \
+({                                                                             \
+	struct sock *sk_;						       \
+	int rc_;							       \
+									       \
+	while ((rc_ = !(condition_))) {					       \
+		DEFINE_WAIT_FUNC(wait_, woken_wake_function);	               \
+		sk_ = (sock_)->sk;					       \
+		rc_ = tipc_sk_sock_err((sock_), timeo_);		       \
+		if (rc_)						       \
+			break;						       \
+		prepare_to_wait(sk_sleep(sk_), &wait_, TASK_INTERRUPTIBLE);    \
+		release_sock(sk_);					       \
+		*(timeo_) = wait_woken(&wait_, TASK_INTERRUPTIBLE, *(timeo_)); \
+		sched_annotate_sleep();				               \
+		lock_sock(sk_);						       \
+		remove_wait_queue(sk_sleep(sk_), &wait_);		       \
+	}								       \
+	rc_;								       \
 })
 
 /**

net/x25/af_x25.c

···
 
 static int __init x25_init(void)
 {
-	int rc = proto_register(&x25_proto, 0);
+	int rc;
 
-	if (rc != 0)
+	rc = proto_register(&x25_proto, 0);
+	if (rc)
 		goto out;
 
 	rc = sock_register(&x25_family_ops);
-	if (rc != 0)
+	if (rc)
 		goto out_proto;
 
 	dev_add_pack(&x25_packet_type);
 
 	rc = register_netdevice_notifier(&x25_dev_notifier);
-	if (rc != 0)
+	if (rc)
 		goto out_sock;
+
+	rc = x25_register_sysctl();
+	if (rc)
+		goto out_dev;
+
+	rc = x25_proc_init();
+	if (rc)
+		goto out_sysctl;
 
 	pr_info("Linux Version 0.2\n");
 
-	x25_register_sysctl();
-	rc = x25_proc_init();
-	if (rc != 0)
-		goto out_dev;
 out:
 	return rc;
+out_sysctl:
+	x25_unregister_sysctl();
 out_dev:
 	unregister_netdevice_notifier(&x25_dev_notifier);
 out_sock:
+	dev_remove_pack(&x25_packet_type);
 	sock_unregister(AF_X25);
 out_proto:
 	proto_unregister(&x25_proto);

net/x25/sysctl_net_x25.c

···
 	{ },
 };
 
-void __init x25_register_sysctl(void)
+int __init x25_register_sysctl(void)
 {
 	x25_table_header = register_net_sysctl(&init_net, "net/x25", x25_table);
+	if (!x25_table_header)
+		return -ENOMEM;
+	return 0;
 }
 
 void x25_unregister_sysctl(void)

samples/bpf/cookie_uid_helper_example.c

···
 	prog_attach_iptables(argv[2]);
 	if (cfg_test_traffic) {
 		if (signal(SIGINT, finish) == SIG_ERR)
-			error(1, errno, "register handler failed");
+			error(1, errno, "register SIGINT handler failed");
+		if (signal(SIGTERM, finish) == SIG_ERR)
+			error(1, errno, "register SIGTERM handler failed");
 		while (!test_finish) {
 			print_table();
 			printf("\n");

samples/bpf/offwaketime_user.c

···
 	setrlimit(RLIMIT_MEMLOCK, &r);
 
 	signal(SIGINT, int_exit);
+	signal(SIGTERM, int_exit);
 
 	if (load_kallsyms()) {
 		printf("failed to process /proc/kallsyms\n");

samples/bpf/sampleip_user.c

···
 		return 1;
 	}
 	signal(SIGINT, int_exit);
+	signal(SIGTERM, int_exit);
 
 	/* do sampling */
 	printf("Sampling at %d Hertz for %d seconds. Ctrl-C also ends.\n",

samples/bpf/trace_event_user.c

···
 	setrlimit(RLIMIT_MEMLOCK, &r);
 
 	signal(SIGINT, int_exit);
+	signal(SIGTERM, int_exit);
 
 	if (load_kallsyms()) {
 		printf("failed to process /proc/kallsyms\n");

samples/bpf/tracex2_user.c

···
 	}
 
 	signal(SIGINT, int_exit);
+	signal(SIGTERM, int_exit);
 
 	/* start 'ping' in the background to have some kfree_skb events */
 	f = popen("ping -c5 localhost", "r");

samples/bpf/xdp1_user.c

···
 	fprintf(stderr,
 		"usage: %s [OPTS] IFINDEX\n\n"
 		"OPTS:\n"
-		"    -S    use skb-mode\n",
+		"    -S    use skb-mode\n"
+		"    -N    enforce native mode\n",
 		prog);
 }
 
 int main(int argc, char **argv)
 {
-	const char *optstr = "S";
+	const char *optstr = "SN";
 	char filename[256];
 	int opt;
 
···
 		switch (opt) {
 		case 'S':
 			xdp_flags |= XDP_FLAGS_SKB_MODE;
+			break;
+		case 'N':
+			xdp_flags |= XDP_FLAGS_DRV_MODE;
 			break;
 		default:
 			usage(basename(argv[0]));
···
 	}
 
 	signal(SIGINT, int_exit);
+	signal(SIGTERM, int_exit);
 
 	if (set_link_xdp_fd(ifindex, prog_fd[0], xdp_flags) < 0) {
 		printf("link set xdp fd failed\n");

samples/bpf/xdp_tx_iptunnel_user.c

···
 	printf("    -m <dest-MAC> Used in sending the IP Tunneled pkt\n");
 	printf("    -T <stop-after-X-seconds> Default: 0 (forever)\n");
 	printf("    -P <IP-Protocol> Default is TCP\n");
+	printf("    -S use skb-mode\n");
+	printf("    -N enforce native mode\n");
 	printf("    -h Display this help\n");
 }
 
···
 {
 	unsigned char opt_flags[256] = {};
 	unsigned int kill_after_s = 0;
-	const char *optstr = "i:a:p:s:d:m:T:P:Sh";
+	const char *optstr = "i:a:p:s:d:m:T:P:SNh";
 	int min_port = 0, max_port = 0;
 	struct iptnl_info tnl = {};
 	struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
···
 		case 'S':
 			xdp_flags |= XDP_FLAGS_SKB_MODE;
 			break;
+		case 'N':
+			xdp_flags |= XDP_FLAGS_DRV_MODE;
+			break;
 		default:
 			usage(argv[0]);
 			return 1;
···
 	}
 
 	signal(SIGINT, int_exit);
+	signal(SIGTERM, int_exit);
 
 	while (min_port <= max_port) {
 		vip.dport = htons(min_port++);

scripts/Makefile.headersinst

···
 #
 # ==========================================================================
 
+PHONY := __headers
+__headers:
+
+include scripts/Kbuild.include
+
+srcdir        := $(srctree)/$(obj)
+subdirs       := $(patsubst $(srcdir)/%/.,%,$(wildcard $(srcdir)/*/.))
+# caller may set destination dir (when installing to asm/)
+_dst          := $(if $(dst),$(dst),$(obj))
+
+# Recursion
+__headers: $(subdirs)
+
+.PHONY: $(subdirs)
+$(subdirs):
+	$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
+
+# Skip header install/check for include/uapi and arch/$(hdr-arch)/include/uapi.
+# We have only sub-directories there.
+skip-inst := $(if $(filter %/uapi,$(obj)),1)
+
+ifeq ($(skip-inst),)
+
 # generated header directory
 gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
 
···
 kbuild-file := $(srctree)/$(obj)/Kbuild
 -include $(kbuild-file)
 
-# called may set destination dir (when installing to asm/)
-_dst := $(if $(dst),$(dst),$(obj))
-
 old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
 ifneq ($(wildcard $(old-kbuild-file)),)
 include $(old-kbuild-file)
 endif
 
-include scripts/Kbuild.include
-
 installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
 
-srcdir        := $(srctree)/$(obj)
 gendir        := $(objtree)/$(gen)
-subdirs       := $(patsubst $(srcdir)/%/.,%,$(wildcard $(srcdir)/*/.))
 header-files  := $(notdir $(wildcard $(srcdir)/*.h))
 header-files  += $(notdir $(wildcard $(srcdir)/*.agh))
 header-files  := $(filter-out $(no-export-headers), $(header-files))
···
                   $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
 	          touch $@
 
-PHONY += __headersinst __headerscheck
-
 ifndef HDRCHECK
 # Rules for installing headers
-__headersinst: $(subdirs) $(install-file)
+__headers: $(install-file)
 	@:
 
 targets += $(install-file)
···
 	$(call if_changed,install)
 
 else
-__headerscheck: $(subdirs) $(check-file)
+__headers: $(check-file)
 	@:
 
 targets += $(check-file)
···
 
 endif
 
-# Recursion
-.PHONY: $(subdirs)
-$(subdirs):
-	$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
-
 targets := $(wildcard $(sort $(targets)))
 cmd_files := $(wildcard \
              $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
···
 ifneq ($(cmd_files),)
 	include $(cmd_files)
 endif
+
+endif # skip-inst
 
 .PHONY: $(PHONY)
 PHONY += FORCE

scripts/dtc/checks.c

···
 	while (size--)
 		reg = (reg << 32) | fdt32_to_cpu(*(cells++));
 
-	snprintf(unit_addr, sizeof(unit_addr), "%lx", reg);
+	snprintf(unit_addr, sizeof(unit_addr), "%zx", reg);
 	if (!streq(unitname, unit_addr))
 		FAIL(c, dti, "Node %s simple-bus unit address format error, expected \"%s\"",
 		     node->fullpath, unit_addr);

sound/x86/intel_hdmi_audio.c

···
 	pdata->notify_pending = false;
 	spin_unlock_irq(&pdata->lpe_audio_slock);
 
-	/* runtime PM isn't enabled as default, since it won't save much on
-	 * BYT/CHT devices; user who want the runtime PM should adjust the
-	 * power/ontrol and power/autosuspend_delay_ms sysfs entries instead
-	 */
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_mark_last_busy(&pdev->dev);
 	pm_runtime_set_active(&pdev->dev);

tools/build/feature/test-bpf.c

···
 	attr.log_size = 0;
 	attr.log_level = 0;
 	attr.kern_version = 0;
+	attr.prog_flags = 0;
 
 	/*
 	 * Test existence of __NR_bpf and BPF_PROG_LOAD.

tools/include/uapi/linux/bpf.h

···
  */
 #define BPF_F_ALLOW_OVERRIDE	(1U << 0)
 
+/* If BPF_F_STRICT_ALIGNMENT is used in BPF_PROG_LOAD command, the
+ * verifier will perform strict alignment checking as if the kernel
+ * has been built with CONFIG_EFFICIENT_UNALIGNED_ACCESS not set,
+ * and NET_IP_ALIGN defined to 2.
+ */
+#define BPF_F_STRICT_ALIGNMENT	(1U << 0)
+
 #define BPF_PSEUDO_MAP_FD	1
 
 /* flags for BPF_MAP_UPDATE_ELEM command */
···
 		__u32		log_size;	/* size of user buffer */
 		__aligned_u64	log_buf;	/* user supplied buffer */
 		__u32		kern_version;	/* checked when prog_type=kprobe */
+		__u32		prog_flags;
 	};
 
 	struct { /* anonymous struct used by BPF_OBJ_* commands */
···
  * u32 bpf_get_socket_uid(skb)
  *     Get the owner uid of the socket stored inside sk_buff.
  *     @skb: pointer to skb
- *     Return: uid of the socket owner on success or 0 if the socket pointer
- *     inside sk_buff is NULL
+ *     Return: uid of the socket owner on success or overflowuid if failed.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\

tools/lib/bpf/bpf.c

···
 	return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
 }
 
+int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
+		       size_t insns_cnt, int strict_alignment,
+		       const char *license, __u32 kern_version,
+		       char *log_buf, size_t log_buf_sz)
+{
+	union bpf_attr attr;
+
+	bzero(&attr, sizeof(attr));
+	attr.prog_type = type;
+	attr.insn_cnt = (__u32)insns_cnt;
+	attr.insns = ptr_to_u64(insns);
+	attr.license = ptr_to_u64(license);
+	attr.log_buf = ptr_to_u64(log_buf);
+	attr.log_size = log_buf_sz;
+	attr.log_level = 2;
+	log_buf[0] = 0;
+	attr.kern_version = kern_version;
+	attr.prog_flags = strict_alignment ? BPF_F_STRICT_ALIGNMENT : 0;
+
+	return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
+}
+
 int bpf_map_update_elem(int fd, const void *key, const void *value,
 			__u64 flags)
 {

tools/lib/bpf/bpf.h

···
 		     size_t insns_cnt, const char *license,
 		     __u32 kern_version, char *log_buf,
 		     size_t log_buf_sz);
+int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
+		       size_t insns_cnt, int strict_alignment,
+		       const char *license, __u32 kern_version,
+		       char *log_buf, size_t log_buf_sz);
 
 int bpf_map_update_elem(int fd, const void *key, const void *value,
 			__u64 flags);

tools/testing/selftests/bpf/Makefile

···
 CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
 LDLIBS += -lcap -lelf
 
-TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs
+TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
+	test_align
 
 TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o
 
···
 CLANG ?= clang
 
 %.o: %.c
-	$(CLANG) -I. -I../../../include/uapi -I../../../../samples/bpf/ \
+	$(CLANG) -I. -I./include/uapi -I../../../include/uapi \
+		-I../../../../samples/bpf/ \
 		-Wno-compare-distinct-pointer-types \
 		-O2 -target bpf -c $< -o $@

tools/testing/selftests/bpf/include/uapi/linux/types.h

···
+#ifndef _UAPI_LINUX_TYPES_H
+#define _UAPI_LINUX_TYPES_H
+
+#include <asm-generic/int-ll64.h>
+
+/* copied from linux:include/uapi/linux/types.h */
+#define __bitwise
+typedef __u16 __bitwise __le16;
+typedef __u16 __bitwise __be16;
+typedef __u32 __bitwise __le32;
+typedef __u32 __bitwise __be32;
+typedef __u64 __bitwise __le64;
+typedef __u64 __bitwise __be64;
+
+typedef __u16 __bitwise __sum16;
+typedef __u32 __bitwise __wsum;
+
+#define __aligned_u64 __u64 __attribute__((aligned(8)))
+#define __aligned_be64 __be64 __attribute__((aligned(8)))
+#define __aligned_le64 __le64 __attribute__((aligned(8)))
+
+#endif /* _UAPI_LINUX_TYPES_H */

tools/testing/selftests/bpf/test_align.c

···
+#include <asm/types.h>
+#include <linux/types.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#include <linux/unistd.h>
+#include <linux/filter.h>
+#include <linux/bpf_perf_event.h>
+#include <linux/bpf.h>
+
+#include <bpf/bpf.h>
+
+#include "../../../include/linux/filter.h"
+
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#define MAX_INSNS	512
+#define MAX_MATCHES	16
+
+struct bpf_align_test {
+	const char *descr;
+	struct bpf_insn	insns[MAX_INSNS];
+	enum {
+		UNDEF,
+		ACCEPT,
+		REJECT
+	} result;
+	enum bpf_prog_type prog_type;
+	const char *matches[MAX_MATCHES];
+};
+
+static struct bpf_align_test tests[] = {
+	{
+		.descr = "mov",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_3, 2),
+			BPF_MOV64_IMM(BPF_REG_3, 4),
+			BPF_MOV64_IMM(BPF_REG_3, 8),
+			BPF_MOV64_IMM(BPF_REG_3, 16),
+			BPF_MOV64_IMM(BPF_REG_3, 32),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			"1: R1=ctx R3=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
+			"2: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
+			"3: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
+			"4: R1=ctx R3=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
+			"5: R1=ctx R3=imm32,min_value=32,max_value=32,min_align=32 R10=fp",
+		},
+	},
+	{
+		.descr = "shift",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_3, 4),
+			BPF_MOV64_IMM(BPF_REG_4, 32),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			"1: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R10=fp",
+			"2: R1=ctx R3=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
+			"3: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
+			"4: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
+			"5: R1=ctx R3=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
+			"6: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R10=fp",
+			"7: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm32,min_value=32,max_value=32,min_align=32 R10=fp",
+			"8: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
+			"9: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
+			"10: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
+			"11: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
+		},
+	},
+	{
+		.descr = "addsub",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_3, 4),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 4),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 2),
+			BPF_MOV64_IMM(BPF_REG_4, 8),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			"1: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
+			"2: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=4 R10=fp",
+			"3: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R10=fp",
+			"4: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
+			"5: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm12,min_value=12,max_value=12,min_align=4 R10=fp",
+			"6: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm14,min_value=14,max_value=14,min_align=2 R10=fp",
+		},
+	},
+	{
+		.descr = "mul",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_3, 7),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 2),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 4),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			"1: R1=ctx R3=imm7,min_value=7,max_value=7,min_align=1 R10=fp",
+			"2: R1=ctx R3=imm7,min_value=7,max_value=7,min_align=1 R10=fp",
+			"3: R1=ctx R3=imm14,min_value=14,max_value=14,min_align=2 R10=fp",
+			"4: R1=ctx R3=imm56,min_value=56,max_value=56,min_align=4 R10=fp",
+		},
+	},
+
+#define PREP_PKT_POINTERS \
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, \
+		    offsetof(struct __sk_buff, data)), \
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, \
+		    offsetof(struct __sk_buff, data_end))
+
+#define LOAD_UNKNOWN(DST_REG) \
+	PREP_PKT_POINTERS, \
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), \
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), \
+	BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 1), \
+	BPF_EXIT_INSN(), \
+	BPF_LDX_MEM(BPF_B, DST_REG, BPF_REG_2, 0)
+
+	{
+		.descr = "unknown shift",
+		.insns = {
+			LOAD_UNKNOWN(BPF_REG_3),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			LOAD_UNKNOWN(BPF_REG_4),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 5),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			"7: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R10=fp",
+			"8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv55,min_align=2 R10=fp",
+			"9: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv54,min_align=4 R10=fp",
+			"10: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv53,min_align=8 R10=fp",
+			"11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv52,min_align=16 R10=fp",
+			"18: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv56 R10=fp",
+			"19: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv51,min_align=32 R10=fp",
+			"20: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv52,min_align=16 R10=fp",
+			"21: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv53,min_align=8 R10=fp",
+			"22: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv54,min_align=4 R10=fp",
+			"23: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv55,min_align=2 R10=fp",
+		},
+	},
+	{
+		.descr = "unknown mul",
+		.insns = {
+			LOAD_UNKNOWN(BPF_REG_3),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 1),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 2),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 4),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 8),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			"7: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R10=fp",
+			"8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
+			"9: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv55,min_align=1 R10=fp",
+			"10: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
+			"11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv54,min_align=2 R10=fp",
+			"12: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
+			"13: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv53,min_align=4 R10=fp",
+			"14: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
+			"15: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv52,min_align=8 R10=fp",
+			"16: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv50,min_align=8 R10=fp"
+		},
+	},
+	{
+		.descr = "packet const offset",
+		.insns = {
+			PREP_PKT_POINTERS,
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+
+			/* Skip over ethernet header.  */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+
+			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 0),
+			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 1),
+			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 2),
+			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 3),
+			BPF_LDX_MEM(BPF_H, BPF_REG_4, BPF_REG_5, 0),
+			BPF_LDX_MEM(BPF_H, BPF_REG_4, BPF_REG_5, 2),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			"4: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R5=pkt(id=0,off=0,r=0) R10=fp",
+			"5: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R5=pkt(id=0,off=14,r=0) R10=fp",
+			"6: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R4=pkt(id=0,off=14,r=0) R5=pkt(id=0,off=14,r=0) R10=fp",
+			"10: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv56 R5=pkt(id=0,off=14,r=18) R10=fp",
+			"14: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv48 R5=pkt(id=0,off=14,r=18) R10=fp",
+			"15: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv48 R5=pkt(id=0,off=14,r=18) R10=fp",
+		},
+	},
+	{
+		.descr = "packet variable offset",
+		.insns = {
+			LOAD_UNKNOWN(BPF_REG_6),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 2),
+
+			/* First, add a constant to the R5 packet pointer,
+			 * then a variable with a known alignment.
+			 */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+			/* Now, test in the other direction.  Adding first
+			 * the variable offset to R5, then the constant.
+			 */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+			/* Test multiple accumulations of unknown values
+			 * into a packet pointer.
+			 */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 4),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			/* Calculated offset in R6 has unknown value, but known
+			 * alignment of 4.
+			 */
+			"8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R6=inv54,min_align=4 R10=fp",
+
+			/* Offset is added to packet pointer R5, resulting in known
+			 * auxiliary alignment and offset.
+			 */
+			"11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R5=pkt(id=1,off=0,r=0),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+			/* At the time the word size load is performed from R5,
+			 * it's total offset is NET_IP_ALIGN + reg->off (0) +
+			 * reg->aux_off (14) which is 16.  Then the variable
+			 * offset is considered using reg->aux_off_align which
+			 * is 4 and meets the load's requirements.
+			 */
+			"15: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=pkt(id=1,off=4,r=4),aux_off=14,aux_off_align=4 R5=pkt(id=1,off=0,r=4),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+
+			/* Variable offset is added to R5 packet pointer,
+			 * resulting in auxiliary alignment of 4.
+			 */
+			"18: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off=14,aux_off_align=4 R5=pkt(id=2,off=0,r=0),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+			/* Constant offset is added to R5, resulting in
+			 * reg->off of 14.
+			 */
+			"19: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off=14,aux_off_align=4 R5=pkt(id=2,off=14,r=0),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+			/* At the time the word size load is performed from R5,
+			 * it's total offset is NET_IP_ALIGN + reg->off (14) which
+			 * is 16.  Then the variable offset is considered using
+			 * reg->aux_off_align which is 4 and meets the load's
+			 * requirements.
+			 */
+			"23: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=pkt(id=2,off=18,r=18),aux_off_align=4 R5=pkt(id=2,off=14,r=18),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+			/* Constant offset is added to R5 packet pointer,
+			 * resulting in reg->off value of 14.
+			 */
+			"26: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off_align=4 R5=pkt(id=0,off=14,r=8) R6=inv54,min_align=4 R10=fp",
+			/* Variable offset is added to R5, resulting in an
+			 * auxiliary offset of 14, and an auxiliary alignment of 4.
+			 */
+			"27: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off_align=4 R5=pkt(id=3,off=0,r=0),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+			/* Constant is added to R5 again, setting reg->off to 4. */
+			"28: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off_align=4 R5=pkt(id=3,off=4,r=0),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+			/* And once more we add a variable, which causes an accumulation
+			 * of reg->off into reg->aux_off_align, with resulting value of
+			 * 18.  The auxiliary alignment stays at 4.
+			 */
+			"29: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off_align=4 R5=pkt(id=4,off=0,r=0),aux_off=18,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+			/* At the time the word size load is performed from R5,
+			 * it's total offset is NET_IP_ALIGN + reg->off (0) +
+			 * reg->aux_off (18) which is 20.  Then the variable offset
+			 * is considered using reg->aux_off_align which is 4 and meets
+			 * the load's requirements.
+			 */
+			"33: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=pkt(id=4,off=4,r=4),aux_off=18,aux_off_align=4 R5=pkt(id=4,off=0,r=4),aux_off=18,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+		},
+	},
+};
+
+static int probe_filter_length(const struct bpf_insn *fp)
+{
+	int len;
+
+	for (len = MAX_INSNS - 1; len > 0; --len)
+		if (fp[len].code != 0 || fp[len].imm != 0)
+			break;
+	return len + 1;
+}
+
+static char bpf_vlog[32768];
+
+static int do_test_single(struct bpf_align_test *test)
+{
+	struct bpf_insn *prog = test->insns;
+	int prog_type = test->prog_type;
+	int prog_len, i;
+	int fd_prog;
+	int ret;
+
+	prog_len = probe_filter_length(prog);
+	fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
+				     prog, prog_len, 1, "GPL", 0,
+				     bpf_vlog, sizeof(bpf_vlog));
+	if (fd_prog < 0) {
+		printf("Failed to load program.\n");
+		printf("%s", bpf_vlog);
+		ret = 1;
+	} else {
+		ret = 0;
+		for (i = 0; i < MAX_MATCHES; i++) {
+			const char *t, *m = test->matches[i];
+
+			if (!m)
+				break;
+			t = strstr(bpf_vlog, m);
+			if (!t) {
+				printf("Failed to find match: %s\n", m);
+				ret = 1;
+				printf("%s", bpf_vlog);
+				break;
+			}
+		}
+		close(fd_prog);
+	}
+	return ret;
+}
+
+static int do_test(unsigned int from, unsigned int to)
+{
+	int all_pass = 0;
+	int all_fail = 0;
+	unsigned int i;
+
+	for (i = from; i < to; i++) {
+		struct bpf_align_test *test = &tests[i];
+		int fail;
+
+		printf("Test %3d: %s ... ",
+		       i, test->descr);
+		fail = do_test_single(test);
+		if (fail) {
+			all_fail++;
+			printf("FAIL\n");
+		} else {
+			all_pass++;
+			printf("PASS\n");
+		}
+	}
+	printf("Results: %d pass %d fail\n",
+	       all_pass, all_fail);
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	unsigned int from = 0, to = ARRAY_SIZE(tests);
+
+	if (argc == 3) {
+		unsigned int l = atoi(argv[argc - 2]);
+		unsigned int u = atoi(argv[argc - 1]);
+
+		if (l < to && u < to) {
+			from = l;
+			to   = u + 1;
+		}
+	} else if (argc == 2) {
+		unsigned int t = atoi(argv[argc - 1]);
+
+		if (t < to) {
+			from = t;
+			to   = t + 1;
+		}
+	}
+	return do_test(from, to);
+}

tools/testing/selftests/bpf/test_pkt_access.c

···
  * License as published by the Free Software Foundation.
  */
 #include <stddef.h>
+#include <string.h>
 #include <linux/bpf.h>
 #include <linux/if_ether.h>
 #include <linux/if_packet.h>

tools/testing/selftests/ftrace/ftracetest

···
     ;;
     --verbose|-v|-vv)
       VERBOSE=$((VERBOSE + 1))
-      [ $1 == '-vv' ] && VERBOSE=$((VERBOSE + 1))
+      [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
       shift 1
     ;;
     --debug|-d)

tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc

···
     e=`cat $EVENT_ENABLE`
     if [ "$e" != $val ]; then
 	echo "Expected $val but found $e"
-	exit -1
+	exit 1
     fi
 }
 

tools/testing/selftests/ftrace/test.d/functions

···
     echo > set_ftrace_filter
     grep -v '^#' set_ftrace_filter | while read t; do
 	tr=`echo $t | cut -d: -f2`
-	if [ "$tr" == "" ]; then
+	if [ "$tr" = "" ]; then
 	    continue
 	fi
-	if [ $tr == "enable_event" -o $tr == "disable_event" ]; then
+	if [ $tr = "enable_event" -o $tr = "disable_event" ]; then
 	    tr=`echo $t | cut -d: -f1-4`
 	    limit=`echo $t | cut -d: -f5`
 	else

tools/testing/selftests/ftrace/test.d/instances/instance-event.tc

···
 if [ -d foo ]; then
         fail "foo still exists"
 fi
-exit 0
 
-
+mkdir foo
+echo "schedule:enable_event:sched:sched_switch" > foo/set_ftrace_filter
+rmdir foo
+if [ -d foo ]; then
+        fail "foo still exists"
+fi
 
 
 instance_slam() {

tools/testing/selftests/powerpc/tm/.gitignore

···
 tm-signal-context-chk-gpr
 tm-signal-context-chk-vmx
 tm-signal-context-chk-vsx
+tm-vmx-unavail

tools/testing/selftests/powerpc/tm/Makefile

···
 	tm-signal-context-chk-vmx tm-signal-context-chk-vsx
 
 TEST_GEN_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack \
-	tm-vmxcopy tm-fork tm-tar tm-tmspr $(SIGNAL_CONTEXT_CHK_TESTS)
+	tm-vmxcopy tm-fork tm-tar tm-tmspr tm-vmx-unavail \
+	$(SIGNAL_CONTEXT_CHK_TESTS)
 
 include ../../lib.mk
 
···
 $(OUTPUT)/tm-syscall: tm-syscall-asm.S
 $(OUTPUT)/tm-syscall: CFLAGS += -I../../../../../usr/include
 $(OUTPUT)/tm-tmspr: CFLAGS += -pthread
+$(OUTPUT)/tm-vmx-unavail: CFLAGS += -pthread -m64
 
 SIGNAL_CONTEXT_CHK_TESTS := $(patsubst %,$(OUTPUT)/%,$(SIGNAL_CONTEXT_CHK_TESTS))
 $(SIGNAL_CONTEXT_CHK_TESTS): tm-signal.S

tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c

···
+/*
+ * Copyright 2017, Michael Neuling, IBM Corp.
+ * Licensed under GPLv2.
+ * Original: Breno Leitao <[e-mail]> &
+ *           Gustavo Bueno Romero <[e-mail]>
+ * Edited: Michael Neuling
+ *
+ * Force VMX unavailable during a transaction and see if it corrupts
+ * the checkpointed VMX register state after the abort.
+ */
+
+#include <inttypes.h>
+#include <htmintrin.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <pthread.h>
+
+#include "tm.h"
+#include "utils.h"
+
+int passed;
+
+void *worker(void *unused)
+{
+	__int128 vmx0;
+	uint64_t texasr;
+
+	asm goto (
+		"li       3, 1;"  /* Stick non-zero value in VMX0 */
+		"std      3, 0(%[vmx0_ptr]);"
+		"lvx      0, 0, %[vmx0_ptr];"
+
+		/* Wait here a bit so we get scheduled out 255 times */
+		"lis      3, 0x3fff;"
+		"1: ;"
+		"addi     3, 3, -1;"
+		"cmpdi    3, 0;"
+		"bne      1b;"
+
+		/* Kernel will hopefully turn VMX off now */
+
+		"tbegin. ;"
+		"beq      failure;"
+
+		/* Cause VMX unavail. Any VMX instruction */
+		"vaddcuw  0,0,0;"
+
+		"tend. ;"
+		"b        %l[success];"
+
+		/* Check VMX0 sanity after abort */
+		"failure: ;"
+		"lvx       1,  0, %[vmx0_ptr];"
+		"vcmpequb. 2,  0, 1;"
+		"bc        4, 24, %l[value_mismatch];"
+		"b        %l[value_match];"
+		:
+		: [vmx0_ptr] "r"(&vmx0)
+		: "r3"
+		: success, value_match, value_mismatch
+		);
+
+	/* HTM aborted and VMX0 is corrupted */
+value_mismatch:
+	texasr = __builtin_get_texasr();
+
+	printf("\n\n==============\n\n");
+	printf("Failure with error: %lx\n",   _TEXASR_FAILURE_CODE(texasr));
+	printf("Summary error     : %lx\n",   _TEXASR_FAILURE_SUMMARY(texasr));
+	printf("TFIAR exact       : %lx\n\n", _TEXASR_TFIAR_EXACT(texasr));
+
+	passed = 0;
+	return NULL;
+
+	/* HTM aborted but VMX0 is correct */
+value_match:
+//	printf("!");
+	return NULL;
+
+success:
+//	printf(".");
+	return NULL;
+}
+
+int tm_vmx_unavail_test()
+{
+	int threads;
+	pthread_t *thread;
+
+	SKIP_IF(!have_htm());
+
+	passed = 1;
+
+	threads = sysconf(_SC_NPROCESSORS_ONLN) * 4;
+	thread = malloc(sizeof(pthread_t)*threads);
+	if (!thread)
+		return EXIT_FAILURE;
+
+	for (uint64_t i = 0; i < threads; i++)
+		pthread_create(&thread[i], NULL, &worker, NULL);
+
+	for (uint64_t i = 0; i < threads; i++)
+		pthread_join(thread[i], NULL);
+
+	free(thread);
+
+	return passed ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+
+int main(int argc, char **argv)
+{
+	return test_harness(tm_vmx_unavail_test, "tm_vmx_unavail_test");
+}

virt/kvm/arm/hyp/vgic-v3-sr.c

···
 #include <asm/kvm_hyp.h>
 
 #define vtr_to_max_lr_idx(v)		((v) & 0xf)
-#define vtr_to_nr_pri_bits(v)		(((u32)(v) >> 29) + 1)
+#define vtr_to_nr_pre_bits(v)		(((u32)(v) >> 26) + 1)
 
 static u64 __hyp_text __gic_v3_get_lr(unsigned int lr)
 {
···
 
 	if (used_lrs) {
 		int i;
-		u32 nr_pri_bits;
+		u32 nr_pre_bits;
 
 		cpu_if->vgic_elrsr = read_gicreg(ICH_ELSR_EL2);
 
 		write_gicreg(0, ICH_HCR_EL2);
 		val = read_gicreg(ICH_VTR_EL2);
-		nr_pri_bits = vtr_to_nr_pri_bits(val);
+		nr_pre_bits = vtr_to_nr_pre_bits(val);
 
 		for (i = 0; i < used_lrs; i++) {
 			if (cpu_if->vgic_elrsr & (1 << i))
···
 			__gic_v3_set_lr(0, i);
 		}
 
-		switch (nr_pri_bits) {
+		switch (nr_pre_bits) {
 		case 7:
 			cpu_if->vgic_ap0r[3] = read_gicreg(ICH_AP0R3_EL2);
 			cpu_if->vgic_ap0r[2] = read_gicreg(ICH_AP0R2_EL2);
···
 			cpu_if->vgic_ap0r[0] = read_gicreg(ICH_AP0R0_EL2);
 		}
 
-		switch (nr_pri_bits) {
+		switch (nr_pre_bits) {
 		case 7:
 			cpu_if->vgic_ap1r[3] = read_gicreg(ICH_AP1R3_EL2);
 			cpu_if->vgic_ap1r[2] = read_gicreg(ICH_AP1R2_EL2);
···
 	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
 	u64 used_lrs = vcpu->arch.vgic_cpu.used_lrs;
 	u64 val;
-	u32 nr_pri_bits;
+	u32 nr_pre_bits;
 	int i;
 
 	/*
···
 	}
 
 	val = read_gicreg(ICH_VTR_EL2);
-	nr_pri_bits = vtr_to_nr_pri_bits(val);
+	nr_pre_bits = vtr_to_nr_pre_bits(val);
 
 	if (used_lrs) {
 		write_gicreg(cpu_if->vgic_hcr, ICH_HCR_EL2);
 
-		switch (nr_pri_bits) {
+		switch (nr_pre_bits) {
 		case 7:
 			write_gicreg(cpu_if->vgic_ap0r[3], ICH_AP0R3_EL2);
 			write_gicreg(cpu_if->vgic_ap0r[2], ICH_AP0R2_EL2);
···
 			write_gicreg(cpu_if->vgic_ap0r[0], ICH_AP0R0_EL2);
 		}
 
-		switch (nr_pri_bits) {
+		switch (nr_pre_bits) {
 		case 7:
 			write_gicreg(cpu_if->vgic_ap1r[3], ICH_AP1R3_EL2);
 			write_gicreg(cpu_if->vgic_ap1r[2], ICH_AP1R2_EL2);

virt/kvm/arm/mmu.c

···
 	assert_spin_locked(&kvm->mmu_lock);
 	pgd = kvm->arch.pgd + stage2_pgd_index(addr);
 	do {
+		/*
+		 * Make sure the page table is still active, as another thread
+		 * could have possibly freed the page table, while we released
+		 * the lock.
+		 */
+		if (!READ_ONCE(kvm->arch.pgd))
+			break;
 		next = stage2_pgd_addr_end(addr, end);
 		if (!stage2_pgd_none(*pgd))
 			unmap_stage2_puds(kvm, pgd, addr, next);
···
  * Walks the level-1 page table pointed to by kvm->arch.pgd and frees all
  * underlying level-2 and level-3 tables before freeing the actual level-1 table
  * and setting the struct pointer to NULL.
- *
- * Note we don't need locking here as this is only called when the VM is
- * destroyed, which can only be done once.
  */
 void kvm_free_stage2_pgd(struct kvm *kvm)
 {
-	if (kvm->arch.pgd == NULL)
-		return;
+	void *pgd = NULL;
 
 	spin_lock(&kvm->mmu_lock);
-	unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE);
+	if (kvm->arch.pgd) {
+		unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE);
+		pgd = READ_ONCE(kvm->arch.pgd);
+		kvm->arch.pgd = NULL;
+	}
 	spin_unlock(&kvm->mmu_lock);
 
 	/* Free the HW pgd, one page at a time */
-	free_pages_exact(kvm->arch.pgd, S2_PGD_SIZE);
-	kvm->arch.pgd = NULL;
+	if (pgd)
+		free_pages_exact(pgd, S2_PGD_SIZE);
 }
 
 static pud_t *stage2_get_pud(struct kvm *kvm, struct kvm_mmu_memory_cache *cache,
···
 		 * large. Otherwise, we may see kernel panics with
 		 * CONFIG_DETECT_HUNG_TASK, CONFIG_LOCKUP_DETECTOR,
 		 * CONFIG_LOCKDEP. Additionally, holding the lock too long
-		 * will also starve other vCPUs.
+		 * will also starve other vCPUs. We have to also make sure
+		 * that the page tables are not freed while we released
+		 * the lock.
 		 */
-		if (need_resched() || spin_needbreak(&kvm->mmu_lock))
-			cond_resched_lock(&kvm->mmu_lock);
-
+		cond_resched_lock(&kvm->mmu_lock);
+		if (!READ_ONCE(kvm->arch.pgd))
+			break;
 		next = stage2_pgd_addr_end(addr, end);
 		if (stage2_pgd_present(*pgd))
 			stage2_wp_puds(pgd, addr, next);

virt/kvm/arm/vgic/vgic-init.c

···
 	 * If we are creating a VCPU with a GICv3 we must also register the
 	 * KVM io device for the redistributor that belongs to this VCPU.
 	 */
-	if (dist->vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3)
+	if (dist->vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3) {
+		mutex_lock(&vcpu->kvm->lock);
 		ret = vgic_register_redist_iodev(vcpu);
+		mutex_unlock(&vcpu->kvm->lock);
+	}
 	return ret;
 }
 

virt/kvm/arm/vgic/vgic-mmio-v3.c

···
 	if (!vgic_v3_check_base(kvm))
 		return -EINVAL;
 
-	rd_base = vgic->vgic_redist_base + kvm_vcpu_get_idx(vcpu) * SZ_64K * 2;
+	rd_base = vgic->vgic_redist_base + vgic->vgic_redist_free_offset;
 	sgi_base = rd_base + SZ_64K;
 
 	kvm_iodevice_init(&rd_dev->dev, &kvm_io_gic_ops);
···
 	mutex_lock(&kvm->slots_lock);
 	ret = kvm_io_bus_register_dev(kvm, KVM_MMIO_BUS, sgi_base,
 				      SZ_64K, &sgi_dev->dev);
-	mutex_unlock(&kvm->slots_lock);
-	if (ret)
+	if (ret) {
 		kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS,
 					  &rd_dev->dev);
+		goto out;
+	}
 
+	vgic->vgic_redist_free_offset += 2 * SZ_64K;
+out:
+	mutex_unlock(&kvm->slots_lock);
 	return ret;
 }
 
···
 
 	if (ret) {
 		/* The current c failed, so we start with the previous one. */
+		mutex_lock(&kvm->slots_lock);
 		for (c--; c >= 0; c--) {
 			vcpu = kvm_get_vcpu(kvm, c);
 			vgic_unregister_redist_iodev(vcpu);
 		}
+		mutex_unlock(&kvm->slots_lock);
 	}
 
 	return ret;

virt/kvm/arm/vgic/vgic-v2.c

···
 	if (irq->hw) {
 		val |= GICH_LR_HW;
 		val |= irq->hwintid << GICH_LR_PHYSID_CPUID_SHIFT;
+		/*
+		 * Never set pending+active on a HW interrupt, as the
+		 * pending state is kept at the physical distributor
+		 * level.
+		 */
+		if (irq->active && irq_is_pending(irq))
+			val &= ~GICH_LR_PENDING_BIT;
 	} else {
 		if (irq->config == VGIC_CONFIG_LEVEL)
 			val |= GICH_LR_EOI;

virt/kvm/arm/vgic/vgic-v3.c

···
 	if (irq->hw) {
 		val |= ICH_LR_HW;
 		val |= ((u64)irq->hwintid) << ICH_LR_PHYS_ID_SHIFT;
+		/*
+		 * Never set pending+active on a HW interrupt, as the
+		 * pending state is kept at the physical distributor
+		 * level.
+		 */
+		if (irq->active && irq_is_pending(irq))
+			val &= ~ICH_LR_PENDING_BIT;
 	} else {
 		if (irq->config == VGIC_CONFIG_LEVEL)
 			val |= ICH_LR_EOI;