From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:4.9 commit in: /
Date: Wed, 20 Feb 2019 11:16:01 +0000 (UTC) [thread overview]
Message-ID: <1550661340.e51dfb22b20095d7285f68aad2fbaa0a84faa088.mpagano@gentoo> (raw)
commit: e51dfb22b20095d7285f68aad2fbaa0a84faa088
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Feb 20 11:15:40 2019 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Feb 20 11:15:40 2019 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=e51dfb22
proj/linux-patches: Linux patch 4.9.159
Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>
0000_README | 4 +
1158_linux-4.9.159.patch | 2426 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 2430 insertions(+)
diff --git a/0000_README b/0000_README
index 0d0c627..53c6c44 100644
--- a/0000_README
+++ b/0000_README
@@ -675,6 +675,10 @@ Patch: 1157_linux-4.9.158.patch
From: http://www.k5rnel.org
Desc: Linux 4.9.158
+Patch: 1158_linux-4.9.159.patch
+From: http://www.k5rnel.org
+Desc: Linux 4.9.159
+
Patch: 1500_XATTR_USER_PREFIX.patch
From: https://bugs.gentoo.org/show_bug.cgi?id=470644
Desc: Support for namespace user.pax.* on tmpfs.
diff --git a/1158_linux-4.9.159.patch b/1158_linux-4.9.159.patch
new file mode 100644
index 0000000..fe0e636
--- /dev/null
+++ b/1158_linux-4.9.159.patch
@@ -0,0 +1,2426 @@
+diff --git a/Documentation/devicetree/bindings/eeprom/eeprom.txt b/Documentation/devicetree/bindings/eeprom/eeprom.txt
+index 735bc94444bb..4dcce8ee5cee 100644
+--- a/Documentation/devicetree/bindings/eeprom/eeprom.txt
++++ b/Documentation/devicetree/bindings/eeprom/eeprom.txt
+@@ -6,7 +6,8 @@ Required properties:
+
+ "atmel,24c00", "atmel,24c01", "atmel,24c02", "atmel,24c04",
+ "atmel,24c08", "atmel,24c16", "atmel,24c32", "atmel,24c64",
+- "atmel,24c128", "atmel,24c256", "atmel,24c512", "atmel,24c1024"
++ "atmel,24c128", "atmel,24c256", "atmel,24c512", "atmel,24c1024",
++ "atmel,24c2048"
+
+ "catalyst,24c32"
+
+@@ -17,7 +18,7 @@ Required properties:
+ If there is no specific driver for <manufacturer>, a generic
+ driver based on <type> is selected. Possible types are:
+ "24c00", "24c01", "24c02", "24c04", "24c08", "24c16", "24c32", "24c64",
+- "24c128", "24c256", "24c512", "24c1024", "spd"
++ "24c128", "24c256", "24c512", "24c1024", "24c2048", "spd"
+
+ - reg : the I2C address of the EEPROM
+
+diff --git a/Makefile b/Makefile
+index 2b8434aaeece..a452ead13b1e 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 158
++SUBLEVEL = 159
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+
+diff --git a/arch/alpha/include/asm/irq.h b/arch/alpha/include/asm/irq.h
+index 06377400dc09..469642801a68 100644
+--- a/arch/alpha/include/asm/irq.h
++++ b/arch/alpha/include/asm/irq.h
+@@ -55,15 +55,15 @@
+
+ #elif defined(CONFIG_ALPHA_DP264) || \
+ defined(CONFIG_ALPHA_LYNX) || \
+- defined(CONFIG_ALPHA_SHARK) || \
+- defined(CONFIG_ALPHA_EIGER)
++ defined(CONFIG_ALPHA_SHARK)
+ # define NR_IRQS 64
+
+ #elif defined(CONFIG_ALPHA_TITAN)
+ #define NR_IRQS 80
+
+ #elif defined(CONFIG_ALPHA_RAWHIDE) || \
+- defined(CONFIG_ALPHA_TAKARA)
++ defined(CONFIG_ALPHA_TAKARA) || \
++ defined(CONFIG_ALPHA_EIGER)
+ # define NR_IRQS 128
+
+ #elif defined(CONFIG_ALPHA_WILDFIRE)
+diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
+index 83e9eee57a55..f70663127aad 100644
+--- a/arch/alpha/mm/fault.c
++++ b/arch/alpha/mm/fault.c
+@@ -77,7 +77,7 @@ __load_new_mm_context(struct mm_struct *next_mm)
+ /* Macro for exception fixup code to access integer registers. */
+ #define dpf_reg(r) \
+ (((unsigned long *)regs)[(r) <= 8 ? (r) : (r) <= 15 ? (r)-16 : \
+- (r) <= 18 ? (r)+8 : (r)-10])
++ (r) <= 18 ? (r)+10 : (r)-10])
+
+ asmlinkage void
+ do_page_fault(unsigned long address, unsigned long mmcsr,
+diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
+index 78492a0bbbab..3c58ec707ea9 100644
+--- a/arch/arm/boot/dts/da850-evm.dts
++++ b/arch/arm/boot/dts/da850-evm.dts
+@@ -156,7 +156,7 @@
+
+ sound {
+ compatible = "simple-audio-card";
+- simple-audio-card,name = "DA850/OMAP-L138 EVM";
++ simple-audio-card,name = "DA850-OMAPL138 EVM";
+ simple-audio-card,widgets =
+ "Line", "Line In",
+ "Line", "Line Out";
+diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts
+index 7b8ab21fed6c..920e64cdb673 100644
+--- a/arch/arm/boot/dts/da850-lcdk.dts
++++ b/arch/arm/boot/dts/da850-lcdk.dts
+@@ -26,7 +26,7 @@
+
+ sound {
+ compatible = "simple-audio-card";
+- simple-audio-card,name = "DA850/OMAP-L138 LCDK";
++ simple-audio-card,name = "DA850-OMAPL138 LCDK";
+ simple-audio-card,widgets =
+ "Line", "Line In",
+ "Line", "Line Out";
+diff --git a/arch/arm/boot/dts/kirkwood-dnskw.dtsi b/arch/arm/boot/dts/kirkwood-dnskw.dtsi
+index d8fca9db46d0..dddbc0d03da5 100644
+--- a/arch/arm/boot/dts/kirkwood-dnskw.dtsi
++++ b/arch/arm/boot/dts/kirkwood-dnskw.dtsi
+@@ -35,8 +35,8 @@
+ compatible = "gpio-fan";
+ pinctrl-0 = <&pmx_fan_high_speed &pmx_fan_low_speed>;
+ pinctrl-names = "default";
+- gpios = <&gpio1 14 GPIO_ACTIVE_LOW
+- &gpio1 13 GPIO_ACTIVE_LOW>;
++ gpios = <&gpio1 14 GPIO_ACTIVE_HIGH
++ &gpio1 13 GPIO_ACTIVE_HIGH>;
+ gpio-fan,speed-map = <0 0
+ 3000 1
+ 6000 2>;
+diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
+index e616f61f859d..7d727506096f 100644
+--- a/arch/arm/include/asm/assembler.h
++++ b/arch/arm/include/asm/assembler.h
+@@ -465,6 +465,17 @@ THUMB( orr \reg , \reg , #PSR_T_BIT )
+ #endif
+ .endm
+
++ .macro uaccess_mask_range_ptr, addr:req, size:req, limit:req, tmp:req
++#ifdef CONFIG_CPU_SPECTRE
++ sub \tmp, \limit, #1
++ subs \tmp, \tmp, \addr @ tmp = limit - 1 - addr
++ addhs \tmp, \tmp, #1 @ if (tmp >= 0) {
++ subhss \tmp, \tmp, \size @ tmp = limit - (addr + size) }
++ movlo \addr, #0 @ if (tmp < 0) addr = NULL
++ csdb
++#endif
++ .endm
++
+ .macro uaccess_disable, tmp, isb=1
+ #ifdef CONFIG_CPU_SW_DOMAIN_PAN
+ /*
+diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
+index c55db1e22f0c..b9356dbfded0 100644
+--- a/arch/arm/include/asm/cputype.h
++++ b/arch/arm/include/asm/cputype.h
+@@ -106,6 +106,7 @@
+ #define ARM_CPU_PART_SCORPION 0x510002d0
+
+ extern unsigned int processor_id;
++struct proc_info_list *lookup_processor(u32 midr);
+
+ #ifdef CONFIG_CPU_CP15
+ #define read_cpuid(reg) \
+diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h
+index f379f5f849a9..1bfcc3bcfc6d 100644
+--- a/arch/arm/include/asm/proc-fns.h
++++ b/arch/arm/include/asm/proc-fns.h
+@@ -23,7 +23,7 @@ struct mm_struct;
+ /*
+ * Don't change this structure - ASM code relies on it.
+ */
+-extern struct processor {
++struct processor {
+ /* MISC
+ * get data abort address/flags
+ */
+@@ -79,9 +79,13 @@ extern struct processor {
+ unsigned int suspend_size;
+ void (*do_suspend)(void *);
+ void (*do_resume)(void *);
+-} processor;
++};
+
+ #ifndef MULTI_CPU
++static inline void init_proc_vtable(const struct processor *p)
++{
++}
++
+ extern void cpu_proc_init(void);
+ extern void cpu_proc_fin(void);
+ extern int cpu_do_idle(void);
+@@ -98,17 +102,50 @@ extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
+ extern void cpu_do_suspend(void *);
+ extern void cpu_do_resume(void *);
+ #else
+-#define cpu_proc_init processor._proc_init
+-#define cpu_proc_fin processor._proc_fin
+-#define cpu_reset processor.reset
+-#define cpu_do_idle processor._do_idle
+-#define cpu_dcache_clean_area processor.dcache_clean_area
+-#define cpu_set_pte_ext processor.set_pte_ext
+-#define cpu_do_switch_mm processor.switch_mm
+
+-/* These three are private to arch/arm/kernel/suspend.c */
+-#define cpu_do_suspend processor.do_suspend
+-#define cpu_do_resume processor.do_resume
++extern struct processor processor;
++#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
++#include <linux/smp.h>
++/*
++ * This can't be a per-cpu variable because we need to access it before
++ * per-cpu has been initialised. We have a couple of functions that are
++ * called in a pre-emptible context, and so can't use smp_processor_id()
++ * there, hence PROC_TABLE(). We insist in init_proc_vtable() that the
++ * function pointers for these are identical across all CPUs.
++ */
++extern struct processor *cpu_vtable[];
++#define PROC_VTABLE(f) cpu_vtable[smp_processor_id()]->f
++#define PROC_TABLE(f) cpu_vtable[0]->f
++static inline void init_proc_vtable(const struct processor *p)
++{
++ unsigned int cpu = smp_processor_id();
++ *cpu_vtable[cpu] = *p;
++ WARN_ON_ONCE(cpu_vtable[cpu]->dcache_clean_area !=
++ cpu_vtable[0]->dcache_clean_area);
++ WARN_ON_ONCE(cpu_vtable[cpu]->set_pte_ext !=
++ cpu_vtable[0]->set_pte_ext);
++}
++#else
++#define PROC_VTABLE(f) processor.f
++#define PROC_TABLE(f) processor.f
++static inline void init_proc_vtable(const struct processor *p)
++{
++ processor = *p;
++}
++#endif
++
++#define cpu_proc_init PROC_VTABLE(_proc_init)
++#define cpu_check_bugs PROC_VTABLE(check_bugs)
++#define cpu_proc_fin PROC_VTABLE(_proc_fin)
++#define cpu_reset PROC_VTABLE(reset)
++#define cpu_do_idle PROC_VTABLE(_do_idle)
++#define cpu_dcache_clean_area PROC_TABLE(dcache_clean_area)
++#define cpu_set_pte_ext PROC_TABLE(set_pte_ext)
++#define cpu_do_switch_mm PROC_VTABLE(switch_mm)
++
++/* These two are private to arch/arm/kernel/suspend.c */
++#define cpu_do_suspend PROC_VTABLE(do_suspend)
++#define cpu_do_resume PROC_VTABLE(do_resume)
+ #endif
+
+ extern void cpu_resume(void);
+diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
+index 57d2ad9c75ca..df8420672c7e 100644
+--- a/arch/arm/include/asm/thread_info.h
++++ b/arch/arm/include/asm/thread_info.h
+@@ -124,8 +124,8 @@ extern void vfp_flush_hwstate(struct thread_info *);
+ struct user_vfp;
+ struct user_vfp_exc;
+
+-extern int vfp_preserve_user_clear_hwstate(struct user_vfp __user *,
+- struct user_vfp_exc __user *);
++extern int vfp_preserve_user_clear_hwstate(struct user_vfp *,
++ struct user_vfp_exc *);
+ extern int vfp_restore_user_hwstate(struct user_vfp *,
+ struct user_vfp_exc *);
+ #endif
+diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
+index 7b17460127fd..0f6c6b873bc5 100644
+--- a/arch/arm/include/asm/uaccess.h
++++ b/arch/arm/include/asm/uaccess.h
+@@ -99,6 +99,14 @@ extern int __put_user_bad(void);
+ static inline void set_fs(mm_segment_t fs)
+ {
+ current_thread_info()->addr_limit = fs;
++
++ /*
++ * Prevent a mispredicted conditional call to set_fs from forwarding
++ * the wrong address limit to access_ok under speculation.
++ */
++ dsb(nsh);
++ isb();
++
+ modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
+ }
+
+@@ -121,6 +129,32 @@ static inline void set_fs(mm_segment_t fs)
+ #define __inttype(x) \
+ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
+
++/*
++ * Sanitise a uaccess pointer such that it becomes NULL if addr+size
++ * is above the current addr_limit.
++ */
++#define uaccess_mask_range_ptr(ptr, size) \
++ ((__typeof__(ptr))__uaccess_mask_range_ptr(ptr, size))
++static inline void __user *__uaccess_mask_range_ptr(const void __user *ptr,
++ size_t size)
++{
++ void __user *safe_ptr = (void __user *)ptr;
++ unsigned long tmp;
++
++ asm volatile(
++ " sub %1, %3, #1\n"
++ " subs %1, %1, %0\n"
++ " addhs %1, %1, #1\n"
++ " subhss %1, %1, %2\n"
++ " movlo %0, #0\n"
++ : "+r" (safe_ptr), "=&r" (tmp)
++ : "r" (size), "r" (current_thread_info()->addr_limit)
++ : "cc");
++
++ csdb();
++ return safe_ptr;
++}
++
+ /*
+ * Single-value transfer routines. They automatically use the right
+ * size if we just have the right pointer type. Note that the functions
+@@ -392,6 +426,14 @@ do { \
+ __pu_err; \
+ })
+
++#ifdef CONFIG_CPU_SPECTRE
++/*
++ * When mitigating Spectre variant 1.1, all accessors need to include
++ * verification of the address space.
++ */
++#define __put_user(x, ptr) put_user(x, ptr)
++
++#else
+ #define __put_user(x, ptr) \
+ ({ \
+ long __pu_err = 0; \
+@@ -399,12 +441,6 @@ do { \
+ __pu_err; \
+ })
+
+-#define __put_user_error(x, ptr, err) \
+-({ \
+- __put_user_switch((x), (ptr), (err), __put_user_nocheck); \
+- (void) 0; \
+-})
+-
+ #define __put_user_nocheck(x, __pu_ptr, __err, __size) \
+ do { \
+ unsigned long __pu_addr = (unsigned long)__pu_ptr; \
+@@ -484,6 +520,7 @@ do { \
+ : "r" (x), "i" (-EFAULT) \
+ : "cc")
+
++#endif /* !CONFIG_CPU_SPECTRE */
+
+ #ifdef CONFIG_MMU
+ extern unsigned long __must_check
+diff --git a/arch/arm/kernel/bugs.c b/arch/arm/kernel/bugs.c
+index 7be511310191..d41d3598e5e5 100644
+--- a/arch/arm/kernel/bugs.c
++++ b/arch/arm/kernel/bugs.c
+@@ -6,8 +6,8 @@
+ void check_other_bugs(void)
+ {
+ #ifdef MULTI_CPU
+- if (processor.check_bugs)
+- processor.check_bugs();
++ if (cpu_check_bugs)
++ cpu_check_bugs();
+ #endif
+ }
+
+diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S
+index 8733012d231f..7e662bdd5cb3 100644
+--- a/arch/arm/kernel/head-common.S
++++ b/arch/arm/kernel/head-common.S
+@@ -122,6 +122,9 @@ __mmap_switched_data:
+ .long init_thread_union + THREAD_START_SP @ sp
+ .size __mmap_switched_data, . - __mmap_switched_data
+
++ __FINIT
++ .text
++
+ /*
+ * This provides a C-API version of __lookup_processor_type
+ */
+@@ -133,9 +136,6 @@ ENTRY(lookup_processor_type)
+ ldmfd sp!, {r4 - r6, r9, pc}
+ ENDPROC(lookup_processor_type)
+
+- __FINIT
+- .text
+-
+ /*
+ * Read processor ID register (CP#15, CR0), and look up in the linker-built
+ * supported processor list. Note that we can't use the absolute addresses
+diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
+index f4e54503afa9..4764742db7b0 100644
+--- a/arch/arm/kernel/setup.c
++++ b/arch/arm/kernel/setup.c
+@@ -115,6 +115,11 @@ EXPORT_SYMBOL(elf_hwcap2);
+
+ #ifdef MULTI_CPU
+ struct processor processor __ro_after_init;
++#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
++struct processor *cpu_vtable[NR_CPUS] = {
++ [0] = &processor,
++};
++#endif
+ #endif
+ #ifdef MULTI_TLB
+ struct cpu_tlb_fns cpu_tlb __ro_after_init;
+@@ -667,28 +672,33 @@ static void __init smp_build_mpidr_hash(void)
+ }
+ #endif
+
+-static void __init setup_processor(void)
++/*
++ * locate processor in the list of supported processor types. The linker
++ * builds this table for us from the entries in arch/arm/mm/proc-*.S
++ */
++struct proc_info_list *lookup_processor(u32 midr)
+ {
+- struct proc_info_list *list;
++ struct proc_info_list *list = lookup_processor_type(midr);
+
+- /*
+- * locate processor in the list of supported processor
+- * types. The linker builds this table for us from the
+- * entries in arch/arm/mm/proc-*.S
+- */
+- list = lookup_processor_type(read_cpuid_id());
+ if (!list) {
+- pr_err("CPU configuration botched (ID %08x), unable to continue.\n",
+- read_cpuid_id());
+- while (1);
++ pr_err("CPU%u: configuration botched (ID %08x), CPU halted\n",
++ smp_processor_id(), midr);
++ while (1)
++ /* can't use cpu_relax() here as it may require MMU setup */;
+ }
+
++ return list;
++}
++
++static void __init setup_processor(void)
++{
++ unsigned int midr = read_cpuid_id();
++ struct proc_info_list *list = lookup_processor(midr);
++
+ cpu_name = list->cpu_name;
+ __cpu_architecture = __get_cpu_architecture();
+
+-#ifdef MULTI_CPU
+- processor = *list->proc;
+-#endif
++ init_proc_vtable(list->proc);
+ #ifdef MULTI_TLB
+ cpu_tlb = *list->tlb;
+ #endif
+@@ -700,7 +710,7 @@ static void __init setup_processor(void)
+ #endif
+
+ pr_info("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n",
+- cpu_name, read_cpuid_id(), read_cpuid_id() & 15,
++ list->cpu_name, midr, midr & 15,
+ proc_arch[cpu_architecture()], get_cr());
+
+ snprintf(init_utsname()->machine, __NEW_UTS_LEN + 1, "%s%c",
+diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
+index 6bee5c9b1133..0a066f03b5ec 100644
+--- a/arch/arm/kernel/signal.c
++++ b/arch/arm/kernel/signal.c
+@@ -94,17 +94,18 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
+
+ static int preserve_vfp_context(struct vfp_sigframe __user *frame)
+ {
+- const unsigned long magic = VFP_MAGIC;
+- const unsigned long size = VFP_STORAGE_SIZE;
++ struct vfp_sigframe kframe;
+ int err = 0;
+
+- __put_user_error(magic, &frame->magic, err);
+- __put_user_error(size, &frame->size, err);
++ memset(&kframe, 0, sizeof(kframe));
++ kframe.magic = VFP_MAGIC;
++ kframe.size = VFP_STORAGE_SIZE;
+
++ err = vfp_preserve_user_clear_hwstate(&kframe.ufp, &kframe.ufp_exc);
+ if (err)
+- return -EFAULT;
++ return err;
+
+- return vfp_preserve_user_clear_hwstate(&frame->ufp, &frame->ufp_exc);
++ return __copy_to_user(frame, &kframe, sizeof(kframe));
+ }
+
+ static int restore_vfp_context(struct vfp_sigframe __user *auxp)
+@@ -256,30 +257,35 @@ static int
+ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
+ {
+ struct aux_sigframe __user *aux;
++ struct sigcontext context;
+ int err = 0;
+
+- __put_user_error(regs->ARM_r0, &sf->uc.uc_mcontext.arm_r0, err);
+- __put_user_error(regs->ARM_r1, &sf->uc.uc_mcontext.arm_r1, err);
+- __put_user_error(regs->ARM_r2, &sf->uc.uc_mcontext.arm_r2, err);
+- __put_user_error(regs->ARM_r3, &sf->uc.uc_mcontext.arm_r3, err);
+- __put_user_error(regs->ARM_r4, &sf->uc.uc_mcontext.arm_r4, err);
+- __put_user_error(regs->ARM_r5, &sf->uc.uc_mcontext.arm_r5, err);
+- __put_user_error(regs->ARM_r6, &sf->uc.uc_mcontext.arm_r6, err);
+- __put_user_error(regs->ARM_r7, &sf->uc.uc_mcontext.arm_r7, err);
+- __put_user_error(regs->ARM_r8, &sf->uc.uc_mcontext.arm_r8, err);
+- __put_user_error(regs->ARM_r9, &sf->uc.uc_mcontext.arm_r9, err);
+- __put_user_error(regs->ARM_r10, &sf->uc.uc_mcontext.arm_r10, err);
+- __put_user_error(regs->ARM_fp, &sf->uc.uc_mcontext.arm_fp, err);
+- __put_user_error(regs->ARM_ip, &sf->uc.uc_mcontext.arm_ip, err);
+- __put_user_error(regs->ARM_sp, &sf->uc.uc_mcontext.arm_sp, err);
+- __put_user_error(regs->ARM_lr, &sf->uc.uc_mcontext.arm_lr, err);
+- __put_user_error(regs->ARM_pc, &sf->uc.uc_mcontext.arm_pc, err);
+- __put_user_error(regs->ARM_cpsr, &sf->uc.uc_mcontext.arm_cpsr, err);
+-
+- __put_user_error(current->thread.trap_no, &sf->uc.uc_mcontext.trap_no, err);
+- __put_user_error(current->thread.error_code, &sf->uc.uc_mcontext.error_code, err);
+- __put_user_error(current->thread.address, &sf->uc.uc_mcontext.fault_address, err);
+- __put_user_error(set->sig[0], &sf->uc.uc_mcontext.oldmask, err);
++ context = (struct sigcontext) {
++ .arm_r0 = regs->ARM_r0,
++ .arm_r1 = regs->ARM_r1,
++ .arm_r2 = regs->ARM_r2,
++ .arm_r3 = regs->ARM_r3,
++ .arm_r4 = regs->ARM_r4,
++ .arm_r5 = regs->ARM_r5,
++ .arm_r6 = regs->ARM_r6,
++ .arm_r7 = regs->ARM_r7,
++ .arm_r8 = regs->ARM_r8,
++ .arm_r9 = regs->ARM_r9,
++ .arm_r10 = regs->ARM_r10,
++ .arm_fp = regs->ARM_fp,
++ .arm_ip = regs->ARM_ip,
++ .arm_sp = regs->ARM_sp,
++ .arm_lr = regs->ARM_lr,
++ .arm_pc = regs->ARM_pc,
++ .arm_cpsr = regs->ARM_cpsr,
++
++ .trap_no = current->thread.trap_no,
++ .error_code = current->thread.error_code,
++ .fault_address = current->thread.address,
++ .oldmask = set->sig[0],
++ };
++
++ err |= __copy_to_user(&sf->uc.uc_mcontext, &context, sizeof(context));
+
+ err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set));
+
+@@ -296,7 +302,7 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
+ if (err == 0)
+ err |= preserve_vfp_context(&aux->vfp);
+ #endif
+- __put_user_error(0, &aux->end_magic, err);
++ err |= __put_user(0, &aux->end_magic);
+
+ return err;
+ }
+@@ -428,7 +434,7 @@ setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
+ /*
+ * Set uc.uc_flags to a value which sc.trap_no would never have.
+ */
+- __put_user_error(0x5ac3c35a, &frame->uc.uc_flags, err);
++ err = __put_user(0x5ac3c35a, &frame->uc.uc_flags);
+
+ err |= setup_sigframe(frame, regs, set);
+ if (err == 0)
+@@ -448,8 +454,8 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
+
+ err |= copy_siginfo_to_user(&frame->info, &ksig->info);
+
+- __put_user_error(0, &frame->sig.uc.uc_flags, err);
+- __put_user_error(NULL, &frame->sig.uc.uc_link, err);
++ err |= __put_user(0, &frame->sig.uc.uc_flags);
++ err |= __put_user(NULL, &frame->sig.uc.uc_link);
+
+ err |= __save_altstack(&frame->sig.uc.uc_stack, regs->ARM_sp);
+ err |= setup_sigframe(&frame->sig, regs, set);
+diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
+index 4b129aac7233..8faf869e9fb2 100644
+--- a/arch/arm/kernel/smp.c
++++ b/arch/arm/kernel/smp.c
+@@ -27,6 +27,7 @@
+ #include <linux/completion.h>
+ #include <linux/cpufreq.h>
+ #include <linux/irq_work.h>
++#include <linux/slab.h>
+
+ #include <linux/atomic.h>
+ #include <asm/bugs.h>
+@@ -40,6 +41,7 @@
+ #include <asm/mmu_context.h>
+ #include <asm/pgtable.h>
+ #include <asm/pgalloc.h>
++#include <asm/procinfo.h>
+ #include <asm/processor.h>
+ #include <asm/sections.h>
+ #include <asm/tlbflush.h>
+@@ -100,6 +102,30 @@ static unsigned long get_arch_pgd(pgd_t *pgd)
+ #endif
+ }
+
++#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
++static int secondary_biglittle_prepare(unsigned int cpu)
++{
++ if (!cpu_vtable[cpu])
++ cpu_vtable[cpu] = kzalloc(sizeof(*cpu_vtable[cpu]), GFP_KERNEL);
++
++ return cpu_vtable[cpu] ? 0 : -ENOMEM;
++}
++
++static void secondary_biglittle_init(void)
++{
++ init_proc_vtable(lookup_processor(read_cpuid_id())->proc);
++}
++#else
++static int secondary_biglittle_prepare(unsigned int cpu)
++{
++ return 0;
++}
++
++static void secondary_biglittle_init(void)
++{
++}
++#endif
++
+ int __cpu_up(unsigned int cpu, struct task_struct *idle)
+ {
+ int ret;
+@@ -107,6 +133,10 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
+ if (!smp_ops.smp_boot_secondary)
+ return -ENOSYS;
+
++ ret = secondary_biglittle_prepare(cpu);
++ if (ret)
++ return ret;
++
+ /*
+ * We need to tell the secondary core where to find
+ * its stack and the page tables.
+@@ -358,6 +388,8 @@ asmlinkage void secondary_start_kernel(void)
+ struct mm_struct *mm = &init_mm;
+ unsigned int cpu;
+
++ secondary_biglittle_init();
++
+ /*
+ * The identity mapping is uncached (strongly ordered), so
+ * switch away from it before attempting any exclusive accesses.
+diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c
+index 640748e27035..d844c5c9364b 100644
+--- a/arch/arm/kernel/sys_oabi-compat.c
++++ b/arch/arm/kernel/sys_oabi-compat.c
+@@ -276,6 +276,7 @@ asmlinkage long sys_oabi_epoll_wait(int epfd,
+ int maxevents, int timeout)
+ {
+ struct epoll_event *kbuf;
++ struct oabi_epoll_event e;
+ mm_segment_t fs;
+ long ret, err, i;
+
+@@ -294,8 +295,11 @@ asmlinkage long sys_oabi_epoll_wait(int epfd,
+ set_fs(fs);
+ err = 0;
+ for (i = 0; i < ret; i++) {
+- __put_user_error(kbuf[i].events, &events->events, err);
+- __put_user_error(kbuf[i].data, &events->data, err);
++ e.events = kbuf[i].events;
++ e.data = kbuf[i].data;
++ err = __copy_to_user(events, &e, sizeof(e));
++ if (err)
++ break;
+ events++;
+ }
+ kfree(kbuf);
+diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
+index a826df3d3814..6709a8d33963 100644
+--- a/arch/arm/lib/copy_from_user.S
++++ b/arch/arm/lib/copy_from_user.S
+@@ -93,11 +93,7 @@ ENTRY(arm_copy_from_user)
+ #ifdef CONFIG_CPU_SPECTRE
+ get_thread_info r3
+ ldr r3, [r3, #TI_ADDR_LIMIT]
+- adds ip, r1, r2 @ ip=addr+size
+- sub r3, r3, #1 @ addr_limit - 1
+- cmpcc ip, r3 @ if (addr+size > addr_limit - 1)
+- movcs r1, #0 @ addr = NULL
+- csdb
++ uaccess_mask_range_ptr r1, r2, r3, ip
+ #endif
+
+ #include "copy_template.S"
+diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
+index caf5019d8161..970abe521197 100644
+--- a/arch/arm/lib/copy_to_user.S
++++ b/arch/arm/lib/copy_to_user.S
+@@ -94,6 +94,11 @@
+
+ ENTRY(__copy_to_user_std)
+ WEAK(arm_copy_to_user)
++#ifdef CONFIG_CPU_SPECTRE
++ get_thread_info r3
++ ldr r3, [r3, #TI_ADDR_LIMIT]
++ uaccess_mask_range_ptr r0, r2, r3, ip
++#endif
+
+ #include "copy_template.S"
+
+@@ -108,4 +113,3 @@ ENDPROC(__copy_to_user_std)
+ rsb r0, r0, r2
+ copy_abort_end
+ .popsection
+-
+diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
+index 6bd1089b07e0..f598d792bace 100644
+--- a/arch/arm/lib/uaccess_with_memcpy.c
++++ b/arch/arm/lib/uaccess_with_memcpy.c
+@@ -152,7 +152,8 @@ arm_copy_to_user(void __user *to, const void *from, unsigned long n)
+ n = __copy_to_user_std(to, from, n);
+ uaccess_restore(ua_flags);
+ } else {
+- n = __copy_to_user_memcpy(to, from, n);
++ n = __copy_to_user_memcpy(uaccess_mask_range_ptr(to, n),
++ from, n);
+ }
+ return n;
+ }
+diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c
+index ed9a01484030..a52fe871adbc 100644
+--- a/arch/arm/mach-integrator/impd1.c
++++ b/arch/arm/mach-integrator/impd1.c
+@@ -394,7 +394,11 @@ static int __ref impd1_probe(struct lm_device *dev)
+ sizeof(*lookup) + 3 * sizeof(struct gpiod_lookup),
+ GFP_KERNEL);
+ chipname = devm_kstrdup(&dev->dev, devname, GFP_KERNEL);
+- mmciname = kasprintf(GFP_KERNEL, "lm%x:00700", dev->id);
++ mmciname = devm_kasprintf(&dev->dev, GFP_KERNEL,
++ "lm%x:00700", dev->id);
++ if (!lookup || !chipname || !mmciname)
++ return -ENOMEM;
++
+ lookup->dev_id = mmciname;
+ /*
+ * Offsets on GPIO block 1:
+diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
+index 7d9176c4a21d..f8bb65032b79 100644
+--- a/arch/arm/mm/proc-macros.S
++++ b/arch/arm/mm/proc-macros.S
+@@ -275,6 +275,13 @@
+ .endm
+
+ .macro define_processor_functions name:req, dabort:req, pabort:req, nommu=0, suspend=0, bugs=0
++/*
++ * If we are building for big.Little with branch predictor hardening,
++ * we need the processor function tables to remain available after boot.
++ */
++#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
++ .section ".rodata"
++#endif
+ .type \name\()_processor_functions, #object
+ .align 2
+ ENTRY(\name\()_processor_functions)
+@@ -310,6 +317,9 @@ ENTRY(\name\()_processor_functions)
+ .endif
+
+ .size \name\()_processor_functions, . - \name\()_processor_functions
++#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR)
++ .previous
++#endif
+ .endm
+
+ .macro define_cache_functions name:req
+diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c
+index 5544b82a2e7a..9a07916af8dd 100644
+--- a/arch/arm/mm/proc-v7-bugs.c
++++ b/arch/arm/mm/proc-v7-bugs.c
+@@ -52,8 +52,6 @@ static void cpu_v7_spectre_init(void)
+ case ARM_CPU_PART_CORTEX_A17:
+ case ARM_CPU_PART_CORTEX_A73:
+ case ARM_CPU_PART_CORTEX_A75:
+- if (processor.switch_mm != cpu_v7_bpiall_switch_mm)
+- goto bl_error;
+ per_cpu(harden_branch_predictor_fn, cpu) =
+ harden_branch_predictor_bpiall;
+ spectre_v2_method = "BPIALL";
+@@ -61,8 +59,6 @@ static void cpu_v7_spectre_init(void)
+
+ case ARM_CPU_PART_CORTEX_A15:
+ case ARM_CPU_PART_BRAHMA_B15:
+- if (processor.switch_mm != cpu_v7_iciallu_switch_mm)
+- goto bl_error;
+ per_cpu(harden_branch_predictor_fn, cpu) =
+ harden_branch_predictor_iciallu;
+ spectre_v2_method = "ICIALLU";
+@@ -88,11 +84,9 @@ static void cpu_v7_spectre_init(void)
+ ARM_SMCCC_ARCH_WORKAROUND_1, &res);
+ if ((int)res.a0 != 0)
+ break;
+- if (processor.switch_mm != cpu_v7_hvc_switch_mm && cpu)
+- goto bl_error;
+ per_cpu(harden_branch_predictor_fn, cpu) =
+ call_hvc_arch_workaround_1;
+- processor.switch_mm = cpu_v7_hvc_switch_mm;
++ cpu_do_switch_mm = cpu_v7_hvc_switch_mm;
+ spectre_v2_method = "hypervisor";
+ break;
+
+@@ -101,11 +95,9 @@ static void cpu_v7_spectre_init(void)
+ ARM_SMCCC_ARCH_WORKAROUND_1, &res);
+ if ((int)res.a0 != 0)
+ break;
+- if (processor.switch_mm != cpu_v7_smc_switch_mm && cpu)
+- goto bl_error;
+ per_cpu(harden_branch_predictor_fn, cpu) =
+ call_smc_arch_workaround_1;
+- processor.switch_mm = cpu_v7_smc_switch_mm;
++ cpu_do_switch_mm = cpu_v7_smc_switch_mm;
+ spectre_v2_method = "firmware";
+ break;
+
+@@ -119,11 +111,6 @@ static void cpu_v7_spectre_init(void)
+ if (spectre_v2_method)
+ pr_info("CPU%u: Spectre v2: using %s workaround\n",
+ smp_processor_id(), spectre_v2_method);
+- return;
+-
+-bl_error:
+- pr_err("CPU%u: Spectre v2: incorrect context switching function, system vulnerable\n",
+- cpu);
+ }
+ #else
+ static void cpu_v7_spectre_init(void)
+diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
+index 8e5e97989fda..00dd8cf36632 100644
+--- a/arch/arm/vfp/vfpmodule.c
++++ b/arch/arm/vfp/vfpmodule.c
+@@ -554,12 +554,11 @@ void vfp_flush_hwstate(struct thread_info *thread)
+ * Save the current VFP state into the provided structures and prepare
+ * for entry into a new function (signal handler).
+ */
+-int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp,
+- struct user_vfp_exc __user *ufp_exc)
++int vfp_preserve_user_clear_hwstate(struct user_vfp *ufp,
++ struct user_vfp_exc *ufp_exc)
+ {
+ struct thread_info *thread = current_thread_info();
+ struct vfp_hard_struct *hwstate = &thread->vfpstate.hard;
+- int err = 0;
+
+ /* Ensure that the saved hwstate is up-to-date. */
+ vfp_sync_hwstate(thread);
+@@ -568,22 +567,19 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp,
+ * Copy the floating point registers. There can be unused
+ * registers see asm/hwcap.h for details.
+ */
+- err |= __copy_to_user(&ufp->fpregs, &hwstate->fpregs,
+- sizeof(hwstate->fpregs));
++ memcpy(&ufp->fpregs, &hwstate->fpregs, sizeof(hwstate->fpregs));
++
+ /*
+ * Copy the status and control register.
+ */
+- __put_user_error(hwstate->fpscr, &ufp->fpscr, err);
++ ufp->fpscr = hwstate->fpscr;
+
+ /*
+ * Copy the exception registers.
+ */
+- __put_user_error(hwstate->fpexc, &ufp_exc->fpexc, err);
+- __put_user_error(hwstate->fpinst, &ufp_exc->fpinst, err);
+- __put_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err);
+-
+- if (err)
+- return -EFAULT;
++ ufp_exc->fpexc = hwstate->fpexc;
++ ufp_exc->fpinst = hwstate->fpinst;
++ ufp_exc->fpinst2 = hwstate->fpinst2;
+
+ /* Ensure that VFP is disabled. */
+ vfp_flush_hwstate(thread);
+diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
+index cadf99923600..ab04751a12b6 100644
+--- a/arch/x86/events/core.c
++++ b/arch/x86/events/core.c
+@@ -2196,6 +2196,19 @@ void perf_check_microcode(void)
+ }
+ EXPORT_SYMBOL_GPL(perf_check_microcode);
+
++static int x86_pmu_check_period(struct perf_event *event, u64 value)
++{
++ if (x86_pmu.check_period && x86_pmu.check_period(event, value))
++ return -EINVAL;
++
++ if (value && x86_pmu.limit_period) {
++ if (x86_pmu.limit_period(event, value) > value)
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
+ static struct pmu pmu = {
+ .pmu_enable = x86_pmu_enable,
+ .pmu_disable = x86_pmu_disable,
+@@ -2220,6 +2233,7 @@ static struct pmu pmu = {
+ .event_idx = x86_pmu_event_idx,
+ .sched_task = x86_pmu_sched_task,
+ .task_ctx_size = sizeof(struct x86_perf_task_context),
++ .check_period = x86_pmu_check_period,
+ };
+
+ void arch_perf_update_userpage(struct perf_event *event,
+diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
+index f600ab601e00..f0639c8ebcb6 100644
+--- a/arch/x86/events/intel/core.c
++++ b/arch/x86/events/intel/core.c
+@@ -3262,6 +3262,11 @@ static void intel_pmu_sched_task(struct perf_event_context *ctx,
+ intel_pmu_lbr_sched_task(ctx, sched_in);
+ }
+
++static int intel_pmu_check_period(struct perf_event *event, u64 value)
++{
++ return intel_pmu_has_bts_period(event, value) ? -EINVAL : 0;
++}
++
+ PMU_FORMAT_ATTR(offcore_rsp, "config1:0-63");
+
+ PMU_FORMAT_ATTR(ldlat, "config1:0-15");
+@@ -3328,6 +3333,8 @@ static __initconst const struct x86_pmu core_pmu = {
+ .cpu_starting = intel_pmu_cpu_starting,
+ .cpu_dying = intel_pmu_cpu_dying,
+ .cpu_dead = intel_pmu_cpu_dead,
++
++ .check_period = intel_pmu_check_period,
+ };
+
+ static __initconst const struct x86_pmu intel_pmu = {
+@@ -3367,6 +3374,8 @@ static __initconst const struct x86_pmu intel_pmu = {
+
+ .guest_get_msrs = intel_guest_get_msrs,
+ .sched_task = intel_pmu_sched_task,
++
++ .check_period = intel_pmu_check_period,
+ };
+
+ static __init void intel_clovertown_quirk(void)
+diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
+index 7ace39c51ff7..5c21680b0a69 100644
+--- a/arch/x86/events/perf_event.h
++++ b/arch/x86/events/perf_event.h
+@@ -626,6 +626,11 @@ struct x86_pmu {
+ * Intel host/guest support (KVM)
+ */
+ struct perf_guest_switch_msr *(*guest_get_msrs)(int *nr);
++
++ /*
++ * Check period value for PERF_EVENT_IOC_PERIOD ioctl.
++ */
++ int (*check_period) (struct perf_event *event, u64 period);
+ };
+
+ struct x86_perf_task_context {
+@@ -833,7 +838,7 @@ static inline int amd_pmu_init(void)
+
+ #ifdef CONFIG_CPU_SUP_INTEL
+
+-static inline bool intel_pmu_has_bts(struct perf_event *event)
++static inline bool intel_pmu_has_bts_period(struct perf_event *event, u64 period)
+ {
+ struct hw_perf_event *hwc = &event->hw;
+ unsigned int hw_event, bts_event;
+@@ -844,7 +849,14 @@ static inline bool intel_pmu_has_bts(struct perf_event *event)
+ hw_event = hwc->config & INTEL_ARCH_EVENT_MASK;
+ bts_event = x86_pmu.event_map(PERF_COUNT_HW_BRANCH_INSTRUCTIONS);
+
+- return hw_event == bts_event && hwc->sample_period == 1;
++ return hw_event == bts_event && period == 1;
++}
++
++static inline bool intel_pmu_has_bts(struct perf_event *event)
++{
++ struct hw_perf_event *hwc = &event->hw;
++
++ return intel_pmu_has_bts_period(event, hwc->sample_period);
+ }
+
+ int intel_pmu_save_and_restart(struct perf_event *event);
+diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
+index cb26f18d43af..555c002167ad 100644
+--- a/arch/x86/ia32/ia32_aout.c
++++ b/arch/x86/ia32/ia32_aout.c
+@@ -50,7 +50,7 @@ static unsigned long get_dr(int n)
+ /*
+ * fill in the user structure for a core dump..
+ */
+-static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
++static void fill_dump(struct pt_regs *regs, struct user32 *dump)
+ {
+ u32 fs, gs;
+ memset(dump, 0, sizeof(*dump));
+@@ -156,10 +156,12 @@ static int aout_core_dump(struct coredump_params *cprm)
+ fs = get_fs();
+ set_fs(KERNEL_DS);
+ has_dumped = 1;
++
++ fill_dump(cprm->regs, &dump);
++
+ strncpy(dump.u_comm, current->comm, sizeof(current->comm));
+ dump.u_ar0 = offsetof(struct user32, regs);
+ dump.signal = cprm->siginfo->si_signo;
+- dump_thread32(cprm->regs, &dump);
+
+ /*
+ * If the size of the dump file exceeds the rlimit, then see
+diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
+index e652a7cc6186..3f697a9e3f59 100644
+--- a/arch/x86/include/asm/uv/bios.h
++++ b/arch/x86/include/asm/uv/bios.h
+@@ -48,7 +48,8 @@ enum {
+ BIOS_STATUS_SUCCESS = 0,
+ BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
+ BIOS_STATUS_EINVAL = -EINVAL,
+- BIOS_STATUS_UNAVAIL = -EBUSY
++ BIOS_STATUS_UNAVAIL = -EBUSY,
++ BIOS_STATUS_ABORT = -EINTR,
+ };
+
+ /* Address map parameters */
+@@ -167,4 +168,9 @@ extern long system_serial_number;
+
+ extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */
+
++/*
++ * EFI runtime lock; cf. firmware/efi/runtime-wrappers.c for details
++ */
++extern struct semaphore __efi_uv_runtime_lock;
++
+ #endif /* _ASM_X86_UV_BIOS_H */
+diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
+index 91db841101ca..1870fa7387b7 100644
+--- a/arch/x86/kvm/vmx.c
++++ b/arch/x86/kvm/vmx.c
+@@ -2178,7 +2178,8 @@ static void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr,
+ if (!entry_only)
+ j = find_msr(&m->host, msr);
+
+- if (i == NR_AUTOLOAD_MSRS || j == NR_AUTOLOAD_MSRS) {
++ if ((i < 0 && m->guest.nr == NR_AUTOLOAD_MSRS) ||
++ (j < 0 && m->host.nr == NR_AUTOLOAD_MSRS)) {
+ printk_once(KERN_WARNING "Not enough msr switch entries. "
+ "Can't add msr %x\n", msr);
+ return;
+diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c
+index 4a6a5a26c582..eb33432f2f24 100644
+--- a/arch/x86/platform/uv/bios_uv.c
++++ b/arch/x86/platform/uv/bios_uv.c
+@@ -29,7 +29,8 @@
+
+ struct uv_systab *uv_systab;
+
+-s64 uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, u64 a4, u64 a5)
++static s64 __uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3,
++ u64 a4, u64 a5)
+ {
+ struct uv_systab *tab = uv_systab;
+ s64 ret;
+@@ -51,6 +52,19 @@ s64 uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, u64 a4, u64 a5)
+
+ return ret;
+ }
++
++s64 uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, u64 a4, u64 a5)
++{
++ s64 ret;
++
++ if (down_interruptible(&__efi_uv_runtime_lock))
++ return BIOS_STATUS_ABORT;
++
++ ret = __uv_bios_call(which, a1, a2, a3, a4, a5);
++ up(&__efi_uv_runtime_lock);
++
++ return ret;
++}
+ EXPORT_SYMBOL_GPL(uv_bios_call);
+
+ s64 uv_bios_call_irqsave(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3,
+@@ -59,10 +73,15 @@ s64 uv_bios_call_irqsave(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3,
+ unsigned long bios_flags;
+ s64 ret;
+
++ if (down_interruptible(&__efi_uv_runtime_lock))
++ return BIOS_STATUS_ABORT;
++
+ local_irq_save(bios_flags);
+- ret = uv_bios_call(which, a1, a2, a3, a4, a5);
++ ret = __uv_bios_call(which, a1, a2, a3, a4, a5);
+ local_irq_restore(bios_flags);
+
++ up(&__efi_uv_runtime_lock);
++
+ return ret;
+ }
+
+diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
+index 17b518cb787c..0ea065c6725a 100644
+--- a/drivers/acpi/numa.c
++++ b/drivers/acpi/numa.c
+@@ -147,9 +147,9 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
+ {
+ struct acpi_srat_mem_affinity *p =
+ (struct acpi_srat_mem_affinity *)header;
+- pr_debug("SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s%s\n",
+- (unsigned long)p->base_address,
+- (unsigned long)p->length,
++ pr_debug("SRAT Memory (0x%llx length 0x%llx) in proximity domain %d %s%s%s\n",
++ (unsigned long long)p->base_address,
++ (unsigned long long)p->length,
+ p->proximity_domain,
+ (p->flags & ACPI_SRAT_MEM_ENABLED) ?
+ "enabled" : "disabled",
+diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
+index d6d91e8afa9e..61fe4bbc6dc0 100644
+--- a/drivers/cpufreq/cpufreq.c
++++ b/drivers/cpufreq/cpufreq.c
+@@ -1496,17 +1496,16 @@ static unsigned int __cpufreq_get(struct cpufreq_policy *policy)
+ {
+ unsigned int ret_freq = 0;
+
+- if (!cpufreq_driver->get)
++ if (unlikely(policy_is_inactive(policy)) || !cpufreq_driver->get)
+ return ret_freq;
+
+ ret_freq = cpufreq_driver->get(policy->cpu);
+
+ /*
+- * Updating inactive policies is invalid, so avoid doing that. Also
+- * if fast frequency switching is used with the given policy, the check
++ * If fast frequency switching is used with the given policy, the check
+ * against policy->cur is pointless, so skip it in that case too.
+ */
+- if (unlikely(policy_is_inactive(policy)) || policy->fast_switch_enabled)
++ if (policy->fast_switch_enabled)
+ return ret_freq;
+
+ if (ret_freq && policy->cur &&
+diff --git a/drivers/firmware/efi/runtime-wrappers.c b/drivers/firmware/efi/runtime-wrappers.c
+index ae54870b2788..dd7f63354ca0 100644
+--- a/drivers/firmware/efi/runtime-wrappers.c
++++ b/drivers/firmware/efi/runtime-wrappers.c
+@@ -49,6 +49,13 @@ void efi_call_virt_check_flags(unsigned long flags, const char *call)
+ local_irq_restore(flags);
+ }
+
++/*
++ * Expose the EFI runtime lock to the UV platform
++ */
++#ifdef CONFIG_X86_UV
++extern struct semaphore __efi_uv_runtime_lock __alias(efi_runtime_lock);
++#endif
++
+ /*
+ * According to section 7.1 of the UEFI spec, Runtime Services are not fully
+ * reentrant, and there are particular combinations of calls that need to be
+diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
+index f64f35cdc2ff..fa3f2f039a74 100644
+--- a/drivers/gpu/drm/bridge/tc358767.c
++++ b/drivers/gpu/drm/bridge/tc358767.c
+@@ -96,6 +96,8 @@
+ #define DP0_STARTVAL 0x064c
+ #define DP0_ACTIVEVAL 0x0650
+ #define DP0_SYNCVAL 0x0654
++#define SYNCVAL_HS_POL_ACTIVE_LOW (1 << 15)
++#define SYNCVAL_VS_POL_ACTIVE_LOW (1 << 31)
+ #define DP0_MISC 0x0658
+ #define TU_SIZE_RECOMMENDED (63) /* LSCLK cycles per TU */
+ #define BPC_6 (0 << 5)
+@@ -140,6 +142,8 @@
+ #define DP0_LTLOOPCTRL 0x06d8
+ #define DP0_SNKLTCTRL 0x06e4
+
++#define DP1_SRCCTRL 0x07a0
++
+ /* PHY */
+ #define DP_PHY_CTRL 0x0800
+ #define DP_PHY_RST BIT(28) /* DP PHY Global Soft Reset */
+@@ -148,6 +152,7 @@
+ #define PHY_M1_RST BIT(12) /* Reset PHY1 Main Channel */
+ #define PHY_RDY BIT(16) /* PHY Main Channels Ready */
+ #define PHY_M0_RST BIT(8) /* Reset PHY0 Main Channel */
++#define PHY_2LANE BIT(2) /* PHY Enable 2 lanes */
+ #define PHY_A0_EN BIT(1) /* PHY Aux Channel0 Enable */
+ #define PHY_M0_EN BIT(0) /* PHY Main Channel0 Enable */
+
+@@ -538,6 +543,7 @@ static int tc_aux_link_setup(struct tc_data *tc)
+ unsigned long rate;
+ u32 value;
+ int ret;
++ u32 dp_phy_ctrl;
+
+ rate = clk_get_rate(tc->refclk);
+ switch (rate) {
+@@ -562,7 +568,10 @@ static int tc_aux_link_setup(struct tc_data *tc)
+ value |= SYSCLK_SEL_LSCLK | LSCLK_DIV_2;
+ tc_write(SYS_PLLPARAM, value);
+
+- tc_write(DP_PHY_CTRL, BGREN | PWR_SW_EN | BIT(2) | PHY_A0_EN);
++ dp_phy_ctrl = BGREN | PWR_SW_EN | PHY_A0_EN;
++ if (tc->link.base.num_lanes == 2)
++ dp_phy_ctrl |= PHY_2LANE;
++ tc_write(DP_PHY_CTRL, dp_phy_ctrl);
+
+ /*
+ * Initially PLLs are in bypass. Force PLL parameter update,
+@@ -717,7 +726,9 @@ static int tc_set_video_mode(struct tc_data *tc, struct drm_display_mode *mode)
+
+ tc_write(DP0_ACTIVEVAL, (mode->vdisplay << 16) | (mode->hdisplay));
+
+- tc_write(DP0_SYNCVAL, (vsync_len << 16) | (hsync_len << 0));
++ tc_write(DP0_SYNCVAL, (vsync_len << 16) | (hsync_len << 0) |
++ ((mode->flags & DRM_MODE_FLAG_NHSYNC) ? SYNCVAL_HS_POL_ACTIVE_LOW : 0) |
++ ((mode->flags & DRM_MODE_FLAG_NVSYNC) ? SYNCVAL_VS_POL_ACTIVE_LOW : 0));
+
+ tc_write(DPIPXLFMT, VS_POL_ACTIVE_LOW | HS_POL_ACTIVE_LOW |
+ DE_POL_ACTIVE_HIGH | SUB_CFG_TYPE_CONFIG1 | DPI_BPP_RGB888);
+@@ -827,12 +838,11 @@ static int tc_main_link_setup(struct tc_data *tc)
+ if (!tc->mode)
+ return -EINVAL;
+
+- /* from excel file - DP0_SrcCtrl */
+- tc_write(DP0_SRCCTRL, DP0_SRCCTRL_SCRMBLDIS | DP0_SRCCTRL_EN810B |
+- DP0_SRCCTRL_LANESKEW | DP0_SRCCTRL_LANES_2 |
+- DP0_SRCCTRL_BW27 | DP0_SRCCTRL_AUTOCORRECT);
+- /* from excel file - DP1_SrcCtrl */
+- tc_write(0x07a0, 0x00003083);
++ tc_write(DP0_SRCCTRL, tc_srcctrl(tc));
++ /* SSCG and BW27 on DP1 must be set to the same as on DP0 */
++ tc_write(DP1_SRCCTRL,
++ (tc->link.spread ? DP0_SRCCTRL_SSCG : 0) |
++ ((tc->link.base.rate != 162000) ? DP0_SRCCTRL_BW27 : 0));
+
+ rate = clk_get_rate(tc->refclk);
+ switch (rate) {
+@@ -853,8 +863,11 @@ static int tc_main_link_setup(struct tc_data *tc)
+ }
+ value |= SYSCLK_SEL_LSCLK | LSCLK_DIV_2;
+ tc_write(SYS_PLLPARAM, value);
++
+ /* Setup Main Link */
+- dp_phy_ctrl = BGREN | PWR_SW_EN | BIT(2) | PHY_A0_EN | PHY_M0_EN;
++ dp_phy_ctrl = BGREN | PWR_SW_EN | PHY_A0_EN | PHY_M0_EN;
++ if (tc->link.base.num_lanes == 2)
++ dp_phy_ctrl |= PHY_2LANE;
+ tc_write(DP_PHY_CTRL, dp_phy_ctrl);
+ msleep(100);
+
+@@ -1109,10 +1122,20 @@ static bool tc_bridge_mode_fixup(struct drm_bridge *bridge,
+ static int tc_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+ {
++ struct tc_data *tc = connector_to_tc(connector);
++ u32 req, avail;
++ u32 bits_per_pixel = 24;
++
+ /* DPI interface clock limitation: upto 154 MHz */
+ if (mode->clock > 154000)
+ return MODE_CLOCK_HIGH;
+
++ req = mode->clock * bits_per_pixel / 8;
++ avail = tc->link.base.num_lanes * tc->link.base.rate;
++
++ if (req > avail)
++ return MODE_BAD;
++
+ return MODE_OK;
+ }
+
+diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
+index 7b2030925825..6509031098d5 100644
+--- a/drivers/gpu/drm/i915/i915_gem.c
++++ b/drivers/gpu/drm/i915/i915_gem.c
+@@ -1593,6 +1593,16 @@ i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
+ return err;
+ }
+
++static inline bool
++__vma_matches(struct vm_area_struct *vma, struct file *filp,
++ unsigned long addr, unsigned long size)
++{
++ if (vma->vm_file != filp)
++ return false;
++
++ return vma->vm_start == addr && (vma->vm_end - vma->vm_start) == size;
++}
++
+ /**
+ * i915_gem_mmap_ioctl - Maps the contents of an object, returning the address
+ * it is mapped to.
+@@ -1651,7 +1661,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
+ return -EINTR;
+ }
+ vma = find_vma(mm, addr);
+- if (vma)
++ if (vma && __vma_matches(vma, obj->base.filp, addr, args->size))
+ vma->vm_page_prot =
+ pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+ else
+diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
+index b0d445390ee4..d43bc7bd3387 100644
+--- a/drivers/input/misc/bma150.c
++++ b/drivers/input/misc/bma150.c
+@@ -482,13 +482,14 @@ static int bma150_register_input_device(struct bma150_data *bma150)
+ idev->close = bma150_irq_close;
+ input_set_drvdata(idev, bma150);
+
++ bma150->input = idev;
++
+ error = input_register_device(idev);
+ if (error) {
+ input_free_device(idev);
+ return error;
+ }
+
+- bma150->input = idev;
+ return 0;
+ }
+
+@@ -511,15 +512,15 @@ static int bma150_register_polled_device(struct bma150_data *bma150)
+
+ bma150_init_input_device(bma150, ipoll_dev->input);
+
++ bma150->input_polled = ipoll_dev;
++ bma150->input = ipoll_dev->input;
++
+ error = input_register_polled_device(ipoll_dev);
+ if (error) {
+ input_free_polled_device(ipoll_dev);
+ return error;
+ }
+
+- bma150->input_polled = ipoll_dev;
+- bma150->input = ipoll_dev->input;
+-
+ return 0;
+ }
+
+diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
+index 30adc5745cba..25ce9047b682 100644
+--- a/drivers/input/mouse/elan_i2c_core.c
++++ b/drivers/input/mouse/elan_i2c_core.c
+@@ -1240,7 +1240,6 @@ MODULE_DEVICE_TABLE(i2c, elan_id);
+ static const struct acpi_device_id elan_acpi_id[] = {
+ { "ELAN0000", 0 },
+ { "ELAN0100", 0 },
+- { "ELAN0501", 0 },
+ { "ELAN0600", 0 },
+ { "ELAN0602", 0 },
+ { "ELAN0605", 0 },
+@@ -1251,6 +1250,7 @@ static const struct acpi_device_id elan_acpi_id[] = {
+ { "ELAN060C", 0 },
+ { "ELAN0611", 0 },
+ { "ELAN0612", 0 },
++ { "ELAN0617", 0 },
+ { "ELAN0618", 0 },
+ { "ELAN061C", 0 },
+ { "ELAN061D", 0 },
+diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
+index c120afd9c46a..38edf8f5bf8a 100644
+--- a/drivers/input/mouse/elantech.c
++++ b/drivers/input/mouse/elantech.c
+@@ -1117,6 +1117,8 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
+ * Asus UX31 0x361f00 20, 15, 0e clickpad
+ * Asus UX32VD 0x361f02 00, 15, 0e clickpad
+ * Avatar AVIU-145A2 0x361f00 ? clickpad
++ * Fujitsu CELSIUS H760 0x570f02 40, 14, 0c 3 hw buttons (**)
++ * Fujitsu CELSIUS H780 0x5d0f02 41, 16, 0d 3 hw buttons (**)
+ * Fujitsu LIFEBOOK E544 0x470f00 d0, 12, 09 2 hw buttons
+ * Fujitsu LIFEBOOK E546 0x470f00 50, 12, 09 2 hw buttons
+ * Fujitsu LIFEBOOK E547 0x470f00 50, 12, 09 2 hw buttons
+@@ -1169,6 +1171,13 @@ static const struct dmi_system_id elantech_dmi_has_middle_button[] = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
+ },
+ },
++ {
++ /* Fujitsu H780 also has a middle button */
++ .matches = {
++ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
++ DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H780"),
++ },
++ },
+ #endif
+ { }
+ };
+diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
+index 914c8a6bf93c..345f4d81ba07 100644
+--- a/drivers/md/dm-thin.c
++++ b/drivers/md/dm-thin.c
+@@ -257,6 +257,7 @@ struct pool {
+
+ spinlock_t lock;
+ struct bio_list deferred_flush_bios;
++ struct bio_list deferred_flush_completions;
+ struct list_head prepared_mappings;
+ struct list_head prepared_discards;
+ struct list_head prepared_discards_pt2;
+@@ -925,6 +926,39 @@ static void process_prepared_mapping_fail(struct dm_thin_new_mapping *m)
+ mempool_free(m, m->tc->pool->mapping_pool);
+ }
+
++static void complete_overwrite_bio(struct thin_c *tc, struct bio *bio)
++{
++ struct pool *pool = tc->pool;
++ unsigned long flags;
++
++ /*
++ * If the bio has the REQ_FUA flag set we must commit the metadata
++ * before signaling its completion.
++ */
++ if (!bio_triggers_commit(tc, bio)) {
++ bio_endio(bio);
++ return;
++ }
++
++ /*
++ * Complete bio with an error if earlier I/O caused changes to the
++ * metadata that can't be committed, e.g, due to I/O errors on the
++ * metadata device.
++ */
++ if (dm_thin_aborted_changes(tc->td)) {
++ bio_io_error(bio);
++ return;
++ }
++
++ /*
++ * Batch together any bios that trigger commits and then issue a
++ * single commit for them in process_deferred_bios().
++ */
++ spin_lock_irqsave(&pool->lock, flags);
++ bio_list_add(&pool->deferred_flush_completions, bio);
++ spin_unlock_irqrestore(&pool->lock, flags);
++}
++
+ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
+ {
+ struct thin_c *tc = m->tc;
+@@ -957,7 +991,7 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
+ */
+ if (bio) {
+ inc_remap_and_issue_cell(tc, m->cell, m->data_block);
+- bio_endio(bio);
++ complete_overwrite_bio(tc, bio);
+ } else {
+ inc_all_io_entry(tc->pool, m->cell->holder);
+ remap_and_issue(tc, m->cell->holder, m->data_block);
+@@ -2303,7 +2337,7 @@ static void process_deferred_bios(struct pool *pool)
+ {
+ unsigned long flags;
+ struct bio *bio;
+- struct bio_list bios;
++ struct bio_list bios, bio_completions;
+ struct thin_c *tc;
+
+ tc = get_first_thin(pool);
+@@ -2314,26 +2348,36 @@ static void process_deferred_bios(struct pool *pool)
+ }
+
+ /*
+- * If there are any deferred flush bios, we must commit
+- * the metadata before issuing them.
++ * If there are any deferred flush bios, we must commit the metadata
++ * before issuing them or signaling their completion.
+ */
+ bio_list_init(&bios);
++ bio_list_init(&bio_completions);
++
+ spin_lock_irqsave(&pool->lock, flags);
+ bio_list_merge(&bios, &pool->deferred_flush_bios);
+ bio_list_init(&pool->deferred_flush_bios);
++
++ bio_list_merge(&bio_completions, &pool->deferred_flush_completions);
++ bio_list_init(&pool->deferred_flush_completions);
+ spin_unlock_irqrestore(&pool->lock, flags);
+
+- if (bio_list_empty(&bios) &&
++ if (bio_list_empty(&bios) && bio_list_empty(&bio_completions) &&
+ !(dm_pool_changed_this_transaction(pool->pmd) && need_commit_due_to_time(pool)))
+ return;
+
+ if (commit(pool)) {
++ bio_list_merge(&bios, &bio_completions);
++
+ while ((bio = bio_list_pop(&bios)))
+ bio_io_error(bio);
+ return;
+ }
+ pool->last_commit_jiffies = jiffies;
+
++ while ((bio = bio_list_pop(&bio_completions)))
++ bio_endio(bio);
++
+ while ((bio = bio_list_pop(&bios)))
+ generic_make_request(bio);
+ }
+@@ -2968,6 +3012,7 @@ static struct pool *pool_create(struct mapped_device *pool_md,
+ INIT_DELAYED_WORK(&pool->no_space_timeout, do_no_space_timeout);
+ spin_lock_init(&pool->lock);
+ bio_list_init(&pool->deferred_flush_bios);
++ bio_list_init(&pool->deferred_flush_completions);
+ INIT_LIST_HEAD(&pool->prepared_mappings);
+ INIT_LIST_HEAD(&pool->prepared_discards);
+ INIT_LIST_HEAD(&pool->prepared_discards_pt2);
+diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
+index c4e41c26649e..fac10c0e852c 100644
+--- a/drivers/misc/eeprom/Kconfig
++++ b/drivers/misc/eeprom/Kconfig
+@@ -12,7 +12,7 @@ config EEPROM_AT24
+ ones like at24c64, 24lc02 or fm24c04:
+
+ 24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
+- 24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
++ 24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024, 24c2048
+
+ Unless you like data loss puzzles, always be sure that any chip
+ you configure as a 24c32 (32 kbit) or larger is NOT really a
+diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
+index d8a485f1798b..a37b9b6a315a 100644
+--- a/drivers/misc/eeprom/at24.c
++++ b/drivers/misc/eeprom/at24.c
+@@ -170,6 +170,7 @@ static const struct i2c_device_id at24_ids[] = {
+ { "24c256", AT24_DEVICE_MAGIC(262144 / 8, AT24_FLAG_ADDR16) },
+ { "24c512", AT24_DEVICE_MAGIC(524288 / 8, AT24_FLAG_ADDR16) },
+ { "24c1024", AT24_DEVICE_MAGIC(1048576 / 8, AT24_FLAG_ADDR16) },
++ { "24c2048", AT24_DEVICE_MAGIC(2097152 / 8, AT24_FLAG_ADDR16) },
+ { "at24", 0 },
+ { /* END OF LIST */ }
+ };
+diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+index 4bc2c806eb61..eeeb4c5740bf 100644
+--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+@@ -12979,6 +12979,24 @@ static netdev_features_t bnx2x_features_check(struct sk_buff *skb,
+ struct net_device *dev,
+ netdev_features_t features)
+ {
++ /*
++ * A skb with gso_size + header length > 9700 will cause a
++ * firmware panic. Drop GSO support.
++ *
++ * Eventually the upper layer should not pass these packets down.
++ *
++ * For speed, if the gso_size is <= 9000, assume there will
++ * not be 700 bytes of headers and pass it through. Only do a
++ * full (slow) validation if the gso_size is > 9000.
++ *
++ * (Due to the way SKB_BY_FRAGS works this will also do a full
++ * validation in that case.)
++ */
++ if (unlikely(skb_is_gso(skb) &&
++ (skb_shinfo(skb)->gso_size > 9000) &&
++ !skb_gso_validate_mac_len(skb, 9700)))
++ features &= ~NETIF_F_GSO_MASK;
++
+ features = vlan_features_check(skb, features);
+ return vxlan_features_check(skb, features);
+ }
+diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c
+index 8a40202c0a17..c4f1c363e24b 100644
+--- a/drivers/net/usb/ch9200.c
++++ b/drivers/net/usb/ch9200.c
+@@ -254,14 +254,9 @@ static struct sk_buff *ch9200_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
+ tx_overhead = 0x40;
+
+ len = skb->len;
+- if (skb_headroom(skb) < tx_overhead) {
+- struct sk_buff *skb2;
+-
+- skb2 = skb_copy_expand(skb, tx_overhead, 0, flags);
++ if (skb_cow_head(skb, tx_overhead)) {
+ dev_kfree_skb_any(skb);
+- skb = skb2;
+- if (!skb)
+- return NULL;
++ return NULL;
+ }
+
+ __skb_push(skb, tx_overhead);
+diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
+index 66b34ddbe216..72d9e7954b0a 100644
+--- a/drivers/net/usb/kaweth.c
++++ b/drivers/net/usb/kaweth.c
+@@ -803,18 +803,12 @@ static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb,
+ }
+
+ /* We now decide whether we can put our special header into the sk_buff */
+- if (skb_cloned(skb) || skb_headroom(skb) < 2) {
+- /* no such luck - we make our own */
+- struct sk_buff *copied_skb;
+- copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC);
+- dev_kfree_skb_irq(skb);
+- skb = copied_skb;
+- if (!copied_skb) {
+- kaweth->stats.tx_errors++;
+- netif_start_queue(net);
+- spin_unlock_irq(&kaweth->device_lock);
+- return NETDEV_TX_OK;
+- }
++ if (skb_cow_head(skb, 2)) {
++ kaweth->stats.tx_errors++;
++ netif_start_queue(net);
++ spin_unlock_irq(&kaweth->device_lock);
++ dev_kfree_skb_any(skb);
++ return NETDEV_TX_OK;
+ }
+
+ private_header = (__le16 *)__skb_push(skb, 2);
+diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
+index e29f4c0767eb..e719ecd69d01 100644
+--- a/drivers/net/usb/smsc95xx.c
++++ b/drivers/net/usb/smsc95xx.c
+@@ -2011,13 +2011,13 @@ static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev,
+ /* We do not advertise SG, so skbs should be already linearized */
+ BUG_ON(skb_shinfo(skb)->nr_frags);
+
+- if (skb_headroom(skb) < overhead) {
+- struct sk_buff *skb2 = skb_copy_expand(skb,
+- overhead, 0, flags);
++ /* Make writable and expand header space by overhead if required */
++ if (skb_cow_head(skb, overhead)) {
++ /* Must deallocate here as returning NULL to indicate error
++ * means the skb won't be deallocated in the caller.
++ */
+ dev_kfree_skb_any(skb);
+- skb = skb2;
+- if (!skb)
+- return NULL;
++ return NULL;
+ }
+
+ if (csum) {
+diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
+index bedce3453dd3..5aa221487a9c 100644
+--- a/drivers/pinctrl/qcom/pinctrl-msm.c
++++ b/drivers/pinctrl/qcom/pinctrl-msm.c
+@@ -803,11 +803,24 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
+ return ret;
+ }
+
+- ret = gpiochip_add_pin_range(&pctrl->chip, dev_name(pctrl->dev), 0, 0, chip->ngpio);
+- if (ret) {
+- dev_err(pctrl->dev, "Failed to add pin range\n");
+- gpiochip_remove(&pctrl->chip);
+- return ret;
++ /*
++ * For DeviceTree-supported systems, the gpio core checks the
++ * pinctrl's device node for the "gpio-ranges" property.
++ * If it is present, it takes care of adding the pin ranges
++ * for the driver. In this case the driver can skip ahead.
++ *
++ * In order to remain compatible with older, existing DeviceTree
++ * files which don't set the "gpio-ranges" property or systems that
++ * utilize ACPI the driver has to call gpiochip_add_pin_range().
++ */
++ if (!of_property_read_bool(pctrl->dev->of_node, "gpio-ranges")) {
++ ret = gpiochip_add_pin_range(&pctrl->chip,
++ dev_name(pctrl->dev), 0, 0, chip->ngpio);
++ if (ret) {
++ dev_err(pctrl->dev, "Failed to add pin range\n");
++ gpiochip_remove(&pctrl->chip);
++ return ret;
++ }
+ }
+
+ ret = gpiochip_irqchip_add(chip,
+diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
+index 85442edf3c49..913ebb6d0d29 100644
+--- a/drivers/scsi/aic94xx/aic94xx_init.c
++++ b/drivers/scsi/aic94xx/aic94xx_init.c
+@@ -281,7 +281,7 @@ static ssize_t asd_show_dev_rev(struct device *dev,
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ asd_dev_rev[asd_ha->revision_id]);
+ }
+-static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL);
++static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
+
+ static ssize_t asd_show_dev_bios_build(struct device *dev,
+ struct device_attribute *attr,char *buf)
+@@ -478,7 +478,7 @@ static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
+ {
+ int err;
+
+- err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
++ err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
+ if (err)
+ return err;
+
+@@ -500,13 +500,13 @@ err_update_bios:
+ err_biosb:
+ device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
+ err_rev:
+- device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
++ device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
+ return err;
+ }
+
+ static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
+ {
+- device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
++ device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
+ device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
+ device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
+ device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
+diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
+index 984d6aae7529..0e5435330c07 100644
+--- a/drivers/usb/dwc2/hcd.c
++++ b/drivers/usb/dwc2/hcd.c
+@@ -5202,7 +5202,6 @@ error3:
+ error2:
+ usb_put_hcd(hcd);
+ error1:
+- kfree(hsotg->core_params);
+
+ #ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS
+ kfree(hsotg->last_frame_num_array);
+diff --git a/fs/cifs/file.c b/fs/cifs/file.c
+index a3046b6523c8..8ec296308729 100644
+--- a/fs/cifs/file.c
++++ b/fs/cifs/file.c
+@@ -1126,6 +1126,10 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile)
+ return -EINVAL;
+ }
+
++ BUILD_BUG_ON(sizeof(struct smb_hdr) + sizeof(LOCKING_ANDX_RANGE) >
++ PAGE_SIZE);
++ max_buf = min_t(unsigned int, max_buf - sizeof(struct smb_hdr),
++ PAGE_SIZE);
+ max_num = (max_buf - sizeof(struct smb_hdr)) /
+ sizeof(LOCKING_ANDX_RANGE);
+ buf = kcalloc(max_num, sizeof(LOCKING_ANDX_RANGE), GFP_KERNEL);
+@@ -1462,6 +1466,10 @@ cifs_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
+ if (max_buf < (sizeof(struct smb_hdr) + sizeof(LOCKING_ANDX_RANGE)))
+ return -EINVAL;
+
++ BUILD_BUG_ON(sizeof(struct smb_hdr) + sizeof(LOCKING_ANDX_RANGE) >
++ PAGE_SIZE);
++ max_buf = min_t(unsigned int, max_buf - sizeof(struct smb_hdr),
++ PAGE_SIZE);
+ max_num = (max_buf - sizeof(struct smb_hdr)) /
+ sizeof(LOCKING_ANDX_RANGE);
+ buf = kcalloc(max_num, sizeof(LOCKING_ANDX_RANGE), GFP_KERNEL);
+diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
+index b7885dc0d9bb..dee5250701de 100644
+--- a/fs/cifs/smb2file.c
++++ b/fs/cifs/smb2file.c
+@@ -129,6 +129,8 @@ smb2_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
+ if (max_buf < sizeof(struct smb2_lock_element))
+ return -EINVAL;
+
++ BUILD_BUG_ON(sizeof(struct smb2_lock_element) > PAGE_SIZE);
++ max_buf = min_t(unsigned int, max_buf, PAGE_SIZE);
+ max_num = max_buf / sizeof(struct smb2_lock_element);
+ buf = kcalloc(max_num, sizeof(struct smb2_lock_element), GFP_KERNEL);
+ if (!buf)
+@@ -265,6 +267,8 @@ smb2_push_mandatory_locks(struct cifsFileInfo *cfile)
+ return -EINVAL;
+ }
+
++ BUILD_BUG_ON(sizeof(struct smb2_lock_element) > PAGE_SIZE);
++ max_buf = min_t(unsigned int, max_buf, PAGE_SIZE);
+ max_num = max_buf / sizeof(struct smb2_lock_element);
+ buf = kcalloc(max_num, sizeof(struct smb2_lock_element), GFP_KERNEL);
+ if (!buf) {
+diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
+index 78ed8105e64d..ae8ecf821019 100644
+--- a/include/linux/perf_event.h
++++ b/include/linux/perf_event.h
+@@ -455,6 +455,11 @@ struct pmu {
+ * Filter events for PMU-specific reasons.
+ */
+ int (*filter_match) (struct perf_event *event); /* optional */
++
++ /*
++ * Check period value for PERF_EVENT_IOC_PERIOD ioctl.
++ */
++ int (*check_period) (struct perf_event *event, u64 value); /* optional */
+ };
+
+ /**
+diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
+index ed329a39d621..f8761774a94f 100644
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -3102,6 +3102,7 @@ int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen);
+ void skb_scrub_packet(struct sk_buff *skb, bool xnet);
+ unsigned int skb_gso_transport_seglen(const struct sk_buff *skb);
+ bool skb_gso_validate_mtu(const struct sk_buff *skb, unsigned int mtu);
++bool skb_gso_validate_mac_len(const struct sk_buff *skb, unsigned int len);
+ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
+ struct sk_buff *skb_vlan_untag(struct sk_buff *skb);
+ int skb_ensure_writable(struct sk_buff *skb, int write_len);
+@@ -3880,6 +3881,21 @@ static inline unsigned int skb_gso_network_seglen(const struct sk_buff *skb)
+ return hdr_len + skb_gso_transport_seglen(skb);
+ }
+
++/**
++ * skb_gso_mac_seglen - Return length of individual segments of a gso packet
++ *
++ * @skb: GSO skb
++ *
++ * skb_gso_mac_seglen is used to determine the real size of the
++ * individual segments, including MAC/L2, Layer3 (IP, IPv6) and L4
++ * headers (TCP/UDP).
++ */
++static inline unsigned int skb_gso_mac_seglen(const struct sk_buff *skb)
++{
++ unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb);
++ return hdr_len + skb_gso_transport_seglen(skb);
++}
++
+ /* Local Checksum Offload.
+ * Compute outer checksum based on the assumption that the
+ * inner checksum will be offloaded later.
+diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
+index b02af0bf5777..66f6b84df287 100644
+--- a/include/net/netfilter/nf_tables.h
++++ b/include/net/netfilter/nf_tables.h
+@@ -87,6 +87,35 @@ struct nft_regs {
+ };
+ };
+
++/* Store/load an u16 or u8 integer to/from the u32 data register.
++ *
++ * Note, when using concatenations, register allocation happens at 32-bit
++ * level. So for store instruction, pad the rest part with zero to avoid
++ * garbage values.
++ */
++
++static inline void nft_reg_store16(u32 *dreg, u16 val)
++{
++ *dreg = 0;
++ *(u16 *)dreg = val;
++}
++
++static inline void nft_reg_store8(u32 *dreg, u8 val)
++{
++ *dreg = 0;
++ *(u8 *)dreg = val;
++}
++
++static inline u16 nft_reg_load16(u32 *sreg)
++{
++ return *(u16 *)sreg;
++}
++
++static inline u8 nft_reg_load8(u32 *sreg)
++{
++ return *(u8 *)sreg;
++}
++
+ static inline void nft_data_copy(u32 *dst, const struct nft_data *src,
+ unsigned int len)
+ {
+diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
+index 659b1634de61..3d3de5e9f9cc 100644
+--- a/include/uapi/linux/if_ether.h
++++ b/include/uapi/linux/if_ether.h
+@@ -139,11 +139,18 @@
+ * This is an Ethernet frame header.
+ */
+
++/* allow libcs like musl to deactivate this, glibc does not implement this. */
++#ifndef __UAPI_DEF_ETHHDR
++#define __UAPI_DEF_ETHHDR 1
++#endif
++
++#if __UAPI_DEF_ETHHDR
+ struct ethhdr {
+ unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
+ unsigned char h_source[ETH_ALEN]; /* source ether addr */
+ __be16 h_proto; /* packet type ID field */
+ } __attribute__((packed));
++#endif
+
+
+ #endif /* _UAPI_LINUX_IF_ETHER_H */
+diff --git a/kernel/events/core.c b/kernel/events/core.c
+index 1af0bbf20984..17339506f9f8 100644
+--- a/kernel/events/core.c
++++ b/kernel/events/core.c
+@@ -4600,6 +4600,11 @@ static void __perf_event_period(struct perf_event *event,
+ }
+ }
+
++static int perf_event_check_period(struct perf_event *event, u64 value)
++{
++ return event->pmu->check_period(event, value);
++}
++
+ static int perf_event_period(struct perf_event *event, u64 __user *arg)
+ {
+ u64 value;
+@@ -4616,6 +4621,9 @@ static int perf_event_period(struct perf_event *event, u64 __user *arg)
+ if (event->attr.freq && value > sysctl_perf_event_sample_rate)
+ return -EINVAL;
+
++ if (perf_event_check_period(event, value))
++ return -EINVAL;
++
+ event_function_call(event, __perf_event_period, &value);
+
+ return 0;
+@@ -8622,6 +8630,11 @@ static int perf_pmu_nop_int(struct pmu *pmu)
+ return 0;
+ }
+
++static int perf_event_nop_int(struct perf_event *event, u64 value)
++{
++ return 0;
++}
++
+ static DEFINE_PER_CPU(unsigned int, nop_txn_flags);
+
+ static void perf_pmu_start_txn(struct pmu *pmu, unsigned int flags)
+@@ -8944,6 +8957,9 @@ got_cpu_context:
+ pmu->pmu_disable = perf_pmu_nop_void;
+ }
+
++ if (!pmu->check_period)
++ pmu->check_period = perf_event_nop_int;
++
+ if (!pmu->event_idx)
+ pmu->event_idx = perf_event_idx_default;
+
+diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
+index f4b5811ebe23..99becab2c1ce 100644
+--- a/kernel/events/ring_buffer.c
++++ b/kernel/events/ring_buffer.c
+@@ -700,7 +700,7 @@ struct ring_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags)
+ size = sizeof(struct ring_buffer);
+ size += nr_pages * sizeof(void *);
+
+- if (order_base_2(size) >= MAX_ORDER)
++ if (order_base_2(size) >= PAGE_SHIFT+MAX_ORDER)
+ goto fail;
+
+ rb = kzalloc(size, GFP_KERNEL);
+diff --git a/kernel/signal.c b/kernel/signal.c
+index 798b8f495ae2..c091dcc9f19b 100644
+--- a/kernel/signal.c
++++ b/kernel/signal.c
+@@ -2241,9 +2241,12 @@ relock:
+ }
+
+ /* Has this task already been marked for death? */
+- ksig->info.si_signo = signr = SIGKILL;
+- if (signal_group_exit(signal))
++ if (signal_group_exit(signal)) {
++ ksig->info.si_signo = signr = SIGKILL;
++ sigdelset(¤t->pending.signal, SIGKILL);
++ recalc_sigpending();
+ goto fatal;
++ }
+
+ for (;;) {
+ struct k_sigaction *ka;
+diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
+index f0ab801a6437..c6eee3d9ed00 100644
+--- a/kernel/trace/trace_uprobe.c
++++ b/kernel/trace/trace_uprobe.c
+@@ -150,7 +150,14 @@ static void FETCH_FUNC_NAME(memory, string)(struct pt_regs *regs,
+
+ ret = strncpy_from_user(dst, src, maxlen);
+ if (ret == maxlen)
+- dst[--ret] = '\0';
++ dst[ret - 1] = '\0';
++ else if (ret >= 0)
++ /*
++ * Include the terminating null byte. In this case it
++ * was copied by strncpy_from_user but not accounted
++ * for in ret.
++ */
++ ret++;
+
+ if (ret < 0) { /* Failed to fetch string */
+ ((u8 *)get_rloc_data(dest))[0] = '\0';
+diff --git a/mm/memory.c b/mm/memory.c
+index 35d8217bb046..47248dc0b9e1 100644
+--- a/mm/memory.c
++++ b/mm/memory.c
+@@ -3329,15 +3329,24 @@ static int do_fault(struct fault_env *fe)
+ {
+ struct vm_area_struct *vma = fe->vma;
+ pgoff_t pgoff = linear_page_index(vma, fe->address);
++ int ret;
+
+ /* The VMA was not fully populated on mmap() or missing VM_DONTEXPAND */
+ if (!vma->vm_ops->fault)
+- return VM_FAULT_SIGBUS;
+- if (!(fe->flags & FAULT_FLAG_WRITE))
+- return do_read_fault(fe, pgoff);
+- if (!(vma->vm_flags & VM_SHARED))
+- return do_cow_fault(fe, pgoff);
+- return do_shared_fault(fe, pgoff);
++ ret = VM_FAULT_SIGBUS;
++ else if (!(fe->flags & FAULT_FLAG_WRITE))
++ ret = do_read_fault(fe, pgoff);
++ else if (!(vma->vm_flags & VM_SHARED))
++ ret = do_cow_fault(fe, pgoff);
++ else
++ ret = do_shared_fault(fe, pgoff);
++
++ /* preallocated pagetable is unused: free it */
++ if (fe->prealloc_pte) {
++ pte_free(vma->vm_mm, fe->prealloc_pte);
++ fe->prealloc_pte = 0;
++ }
++ return ret;
+ }
+
+ static int numa_migrate_prep(struct page *page, struct vm_area_struct *vma,
+diff --git a/net/core/skbuff.c b/net/core/skbuff.c
+index dca1fed0d7da..11501165f0df 100644
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -4469,37 +4469,74 @@ unsigned int skb_gso_transport_seglen(const struct sk_buff *skb)
+ EXPORT_SYMBOL_GPL(skb_gso_transport_seglen);
+
+ /**
+- * skb_gso_validate_mtu - Return in case such skb fits a given MTU
++ * skb_gso_size_check - check the skb size, considering GSO_BY_FRAGS
+ *
+- * @skb: GSO skb
+- * @mtu: MTU to validate against
++ * There are a couple of instances where we have a GSO skb, and we
++ * want to determine what size it would be after it is segmented.
+ *
+- * skb_gso_validate_mtu validates if a given skb will fit a wanted MTU
+- * once split.
++ * We might want to check:
++ * - L3+L4+payload size (e.g. IP forwarding)
++ * - L2+L3+L4+payload size (e.g. sanity check before passing to driver)
++ *
++ * This is a helper to do that correctly considering GSO_BY_FRAGS.
++ *
++ * @seg_len: The segmented length (from skb_gso_*_seglen). In the
++ * GSO_BY_FRAGS case this will be [header sizes + GSO_BY_FRAGS].
++ *
++ * @max_len: The maximum permissible length.
++ *
++ * Returns true if the segmented length <= max length.
+ */
+-bool skb_gso_validate_mtu(const struct sk_buff *skb, unsigned int mtu)
+-{
++static inline bool skb_gso_size_check(const struct sk_buff *skb,
++ unsigned int seg_len,
++ unsigned int max_len) {
+ const struct skb_shared_info *shinfo = skb_shinfo(skb);
+ const struct sk_buff *iter;
+- unsigned int hlen;
+-
+- hlen = skb_gso_network_seglen(skb);
+
+ if (shinfo->gso_size != GSO_BY_FRAGS)
+- return hlen <= mtu;
++ return seg_len <= max_len;
+
+ /* Undo this so we can re-use header sizes */
+- hlen -= GSO_BY_FRAGS;
++ seg_len -= GSO_BY_FRAGS;
+
+ skb_walk_frags(skb, iter) {
+- if (hlen + skb_headlen(iter) > mtu)
++ if (seg_len + skb_headlen(iter) > max_len)
+ return false;
+ }
+
+ return true;
+ }
++
++/**
++ * skb_gso_validate_mtu - Return in case such skb fits a given MTU
++ *
++ * @skb: GSO skb
++ * @mtu: MTU to validate against
++ *
++ * skb_gso_validate_mtu validates if a given skb will fit a wanted MTU
++ * once split.
++ */
++bool skb_gso_validate_mtu(const struct sk_buff *skb, unsigned int mtu)
++{
++ return skb_gso_size_check(skb, skb_gso_network_seglen(skb), mtu);
++}
+ EXPORT_SYMBOL_GPL(skb_gso_validate_mtu);
+
++/**
++ * skb_gso_validate_mac_len - Will a split GSO skb fit in a given length?
++ *
++ * @skb: GSO skb
++ * @len: length to validate against
++ *
++ * skb_gso_validate_mac_len validates if a given skb will fit a wanted
++ * length once split, including L2, L3 and L4 headers and the payload.
++ */
++bool skb_gso_validate_mac_len(const struct sk_buff *skb, unsigned int len)
++{
++ return skb_gso_size_check(skb, skb_gso_mac_seglen(skb), len);
++}
++EXPORT_SYMBOL_GPL(skb_gso_validate_mac_len);
++
+ static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
+ {
+ int mac_len;
+diff --git a/net/ipv4/netfilter/nft_masq_ipv4.c b/net/ipv4/netfilter/nft_masq_ipv4.c
+index 51ced81b616c..dc3628a396ec 100644
+--- a/net/ipv4/netfilter/nft_masq_ipv4.c
++++ b/net/ipv4/netfilter/nft_masq_ipv4.c
+@@ -26,10 +26,10 @@ static void nft_masq_ipv4_eval(const struct nft_expr *expr,
+ memset(&range, 0, sizeof(range));
+ range.flags = priv->flags;
+ if (priv->sreg_proto_min) {
+- range.min_proto.all =
+- *(__be16 *)®s->data[priv->sreg_proto_min];
+- range.max_proto.all =
+- *(__be16 *)®s->data[priv->sreg_proto_max];
++ range.min_proto.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_min]);
++ range.max_proto.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_max]);
+ }
+ regs->verdict.code = nf_nat_masquerade_ipv4(pkt->skb, pkt->hook,
+ &range, pkt->out);
+diff --git a/net/ipv4/netfilter/nft_redir_ipv4.c b/net/ipv4/netfilter/nft_redir_ipv4.c
+index c09d4381427e..f760524e1353 100644
+--- a/net/ipv4/netfilter/nft_redir_ipv4.c
++++ b/net/ipv4/netfilter/nft_redir_ipv4.c
+@@ -26,10 +26,10 @@ static void nft_redir_ipv4_eval(const struct nft_expr *expr,
+
+ memset(&mr, 0, sizeof(mr));
+ if (priv->sreg_proto_min) {
+- mr.range[0].min.all =
+- *(__be16 *)®s->data[priv->sreg_proto_min];
+- mr.range[0].max.all =
+- *(__be16 *)®s->data[priv->sreg_proto_max];
++ mr.range[0].min.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_min]);
++ mr.range[0].max.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_max]);
+ mr.range[0].flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
+ }
+
+diff --git a/net/ipv6/netfilter/nft_masq_ipv6.c b/net/ipv6/netfilter/nft_masq_ipv6.c
+index 9597ffb74077..b74a420050c4 100644
+--- a/net/ipv6/netfilter/nft_masq_ipv6.c
++++ b/net/ipv6/netfilter/nft_masq_ipv6.c
+@@ -27,10 +27,10 @@ static void nft_masq_ipv6_eval(const struct nft_expr *expr,
+ memset(&range, 0, sizeof(range));
+ range.flags = priv->flags;
+ if (priv->sreg_proto_min) {
+- range.min_proto.all =
+- *(__be16 *)®s->data[priv->sreg_proto_min];
+- range.max_proto.all =
+- *(__be16 *)®s->data[priv->sreg_proto_max];
++ range.min_proto.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_min]);
++ range.max_proto.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_max]);
+ }
+ regs->verdict.code = nf_nat_masquerade_ipv6(pkt->skb, &range, pkt->out);
+ }
+diff --git a/net/ipv6/netfilter/nft_redir_ipv6.c b/net/ipv6/netfilter/nft_redir_ipv6.c
+index aca44e89a881..7ef58e493fca 100644
+--- a/net/ipv6/netfilter/nft_redir_ipv6.c
++++ b/net/ipv6/netfilter/nft_redir_ipv6.c
+@@ -26,10 +26,10 @@ static void nft_redir_ipv6_eval(const struct nft_expr *expr,
+
+ memset(&range, 0, sizeof(range));
+ if (priv->sreg_proto_min) {
+- range.min_proto.all =
+- *(__be16 *)®s->data[priv->sreg_proto_min],
+- range.max_proto.all =
+- *(__be16 *)®s->data[priv->sreg_proto_max],
++ range.min_proto.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_min]);
++ range.max_proto.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_max]);
+ range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
+ }
+
+diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c
+index d7b0d171172a..2b9fda71fa8b 100644
+--- a/net/netfilter/nft_ct.c
++++ b/net/netfilter/nft_ct.c
+@@ -77,7 +77,7 @@ static void nft_ct_get_eval(const struct nft_expr *expr,
+
+ switch (priv->key) {
+ case NFT_CT_DIRECTION:
+- *dest = CTINFO2DIR(ctinfo);
++ nft_reg_store8(dest, CTINFO2DIR(ctinfo));
+ return;
+ case NFT_CT_STATUS:
+ *dest = ct->status;
+@@ -129,10 +129,10 @@ static void nft_ct_get_eval(const struct nft_expr *expr,
+ return;
+ }
+ case NFT_CT_L3PROTOCOL:
+- *dest = nf_ct_l3num(ct);
++ nft_reg_store8(dest, nf_ct_l3num(ct));
+ return;
+ case NFT_CT_PROTOCOL:
+- *dest = nf_ct_protonum(ct);
++ nft_reg_store8(dest, nf_ct_protonum(ct));
+ return;
+ default:
+ break;
+@@ -149,10 +149,10 @@ static void nft_ct_get_eval(const struct nft_expr *expr,
+ nf_ct_l3num(ct) == NFPROTO_IPV4 ? 4 : 16);
+ return;
+ case NFT_CT_PROTO_SRC:
+- *dest = (__force __u16)tuple->src.u.all;
++ nft_reg_store16(dest, (__force u16)tuple->src.u.all);
+ return;
+ case NFT_CT_PROTO_DST:
+- *dest = (__force __u16)tuple->dst.u.all;
++ nft_reg_store16(dest, (__force u16)tuple->dst.u.all);
+ return;
+ default:
+ break;
+diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
+index 7c3395513ff0..cec8dc0e5e6f 100644
+--- a/net/netfilter/nft_meta.c
++++ b/net/netfilter/nft_meta.c
+@@ -45,16 +45,15 @@ void nft_meta_get_eval(const struct nft_expr *expr,
+ *dest = skb->len;
+ break;
+ case NFT_META_PROTOCOL:
+- *dest = 0;
+- *(__be16 *)dest = skb->protocol;
++ nft_reg_store16(dest, (__force u16)skb->protocol);
+ break;
+ case NFT_META_NFPROTO:
+- *dest = pkt->pf;
++ nft_reg_store8(dest, pkt->pf);
+ break;
+ case NFT_META_L4PROTO:
+ if (!pkt->tprot_set)
+ goto err;
+- *dest = pkt->tprot;
++ nft_reg_store8(dest, pkt->tprot);
+ break;
+ case NFT_META_PRIORITY:
+ *dest = skb->priority;
+@@ -85,14 +84,12 @@ void nft_meta_get_eval(const struct nft_expr *expr,
+ case NFT_META_IIFTYPE:
+ if (in == NULL)
+ goto err;
+- *dest = 0;
+- *(u16 *)dest = in->type;
++ nft_reg_store16(dest, in->type);
+ break;
+ case NFT_META_OIFTYPE:
+ if (out == NULL)
+ goto err;
+- *dest = 0;
+- *(u16 *)dest = out->type;
++ nft_reg_store16(dest, out->type);
+ break;
+ case NFT_META_SKUID:
+ sk = skb_to_full_sk(skb);
+@@ -142,22 +139,22 @@ void nft_meta_get_eval(const struct nft_expr *expr,
+ #endif
+ case NFT_META_PKTTYPE:
+ if (skb->pkt_type != PACKET_LOOPBACK) {
+- *dest = skb->pkt_type;
++ nft_reg_store8(dest, skb->pkt_type);
+ break;
+ }
+
+ switch (pkt->pf) {
+ case NFPROTO_IPV4:
+ if (ipv4_is_multicast(ip_hdr(skb)->daddr))
+- *dest = PACKET_MULTICAST;
++ nft_reg_store8(dest, PACKET_MULTICAST);
+ else
+- *dest = PACKET_BROADCAST;
++ nft_reg_store8(dest, PACKET_BROADCAST);
+ break;
+ case NFPROTO_IPV6:
+ if (ipv6_hdr(skb)->daddr.s6_addr[0] == 0xFF)
+- *dest = PACKET_MULTICAST;
++ nft_reg_store8(dest, PACKET_MULTICAST);
+ else
+- *dest = PACKET_BROADCAST;
++ nft_reg_store8(dest, PACKET_BROADCAST);
+ break;
+ case NFPROTO_NETDEV:
+ switch (skb->protocol) {
+@@ -171,14 +168,14 @@ void nft_meta_get_eval(const struct nft_expr *expr,
+ goto err;
+
+ if (ipv4_is_multicast(iph->daddr))
+- *dest = PACKET_MULTICAST;
++ nft_reg_store8(dest, PACKET_MULTICAST);
+ else
+- *dest = PACKET_BROADCAST;
++ nft_reg_store8(dest, PACKET_BROADCAST);
+
+ break;
+ }
+ case htons(ETH_P_IPV6):
+- *dest = PACKET_MULTICAST;
++ nft_reg_store8(dest, PACKET_MULTICAST);
+ break;
+ default:
+ WARN_ON_ONCE(1);
+@@ -233,7 +230,9 @@ void nft_meta_set_eval(const struct nft_expr *expr,
+ {
+ const struct nft_meta *meta = nft_expr_priv(expr);
+ struct sk_buff *skb = pkt->skb;
+- u32 value = regs->data[meta->sreg];
++ u32 *sreg = ®s->data[meta->sreg];
++ u32 value = *sreg;
++ u8 pkt_type;
+
+ switch (meta->key) {
+ case NFT_META_MARK:
+@@ -243,9 +242,12 @@ void nft_meta_set_eval(const struct nft_expr *expr,
+ skb->priority = value;
+ break;
+ case NFT_META_PKTTYPE:
+- if (skb->pkt_type != value &&
+- skb_pkt_type_ok(value) && skb_pkt_type_ok(skb->pkt_type))
+- skb->pkt_type = value;
++ pkt_type = nft_reg_load8(sreg);
++
++ if (skb->pkt_type != pkt_type &&
++ skb_pkt_type_ok(pkt_type) &&
++ skb_pkt_type_ok(skb->pkt_type))
++ skb->pkt_type = pkt_type;
+ break;
+ case NFT_META_NFTRACE:
+ skb->nf_trace = !!value;
+diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c
+index ee2d71753746..4c48e9bb21e2 100644
+--- a/net/netfilter/nft_nat.c
++++ b/net/netfilter/nft_nat.c
+@@ -65,10 +65,10 @@ static void nft_nat_eval(const struct nft_expr *expr,
+ }
+
+ if (priv->sreg_proto_min) {
+- range.min_proto.all =
+- *(__be16 *)®s->data[priv->sreg_proto_min];
+- range.max_proto.all =
+- *(__be16 *)®s->data[priv->sreg_proto_max];
++ range.min_proto.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_min]);
++ range.max_proto.all = (__force __be16)nft_reg_load16(
++ ®s->data[priv->sreg_proto_max]);
+ range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
+ }
+
+diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
+index b3f7980b0f27..d646aa770ac8 100644
+--- a/net/sched/sch_tbf.c
++++ b/net/sched/sch_tbf.c
+@@ -142,16 +142,6 @@ static u64 psched_ns_t2l(const struct psched_ratecfg *r,
+ return len;
+ }
+
+-/*
+- * Return length of individual segments of a gso packet,
+- * including all headers (MAC, IP, TCP/UDP)
+- */
+-static unsigned int skb_gso_mac_seglen(const struct sk_buff *skb)
+-{
+- unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb);
+- return hdr_len + skb_gso_transport_seglen(skb);
+-}
+-
+ /* GSO packet is too big, segment it so that tbf can transmit
+ * each segment in time
+ */
+diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
+index ba9cd75e4c98..447b3a8a83c3 100644
+--- a/sound/pci/hda/patch_conexant.c
++++ b/sound/pci/hda/patch_conexant.c
+@@ -854,6 +854,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
+ SND_PCI_QUIRK(0x103c, 0x807C, "HP EliteBook 820 G3", CXT_FIXUP_HP_DOCK),
+ SND_PCI_QUIRK(0x103c, 0x80FD, "HP ProBook 640 G2", CXT_FIXUP_HP_DOCK),
+ SND_PCI_QUIRK(0x103c, 0x828c, "HP EliteBook 840 G4", CXT_FIXUP_HP_DOCK),
++ SND_PCI_QUIRK(0x103c, 0x83b2, "HP EliteBook 840 G5", CXT_FIXUP_HP_DOCK),
+ SND_PCI_QUIRK(0x103c, 0x83b3, "HP EliteBook 830 G5", CXT_FIXUP_HP_DOCK),
+ SND_PCI_QUIRK(0x103c, 0x83d3, "HP ProBook 640 G4", CXT_FIXUP_HP_DOCK),
+ SND_PCI_QUIRK(0x103c, 0x8174, "HP Spectre x360", CXT_FIXUP_HP_SPECTRE),
+diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
+index e6ac7b9b4648..497bad9f2789 100644
+--- a/sound/usb/pcm.c
++++ b/sound/usb/pcm.c
+@@ -313,6 +313,9 @@ static int search_roland_implicit_fb(struct usb_device *dev, int ifnum,
+ return 0;
+ }
+
++/* Setup an implicit feedback endpoint from a quirk. Returns 0 if no quirk
++ * applies. Returns 1 if a quirk was found.
++ */
+ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
+ struct usb_device *dev,
+ struct usb_interface_descriptor *altsd,
+@@ -391,7 +394,7 @@ add_sync_ep:
+
+ subs->data_endpoint->sync_master = subs->sync_endpoint;
+
+- return 0;
++ return 1;
+ }
+
+ static int set_sync_endpoint(struct snd_usb_substream *subs,
+@@ -430,6 +433,10 @@ static int set_sync_endpoint(struct snd_usb_substream *subs,
+ if (err < 0)
+ return err;
+
++ /* endpoint set by quirk */
++ if (err > 0)
++ return 0;
++
+ if (altsd->bNumEndpoints < 2)
+ return 0;
+
+diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
+index 046a4850e3df..ff32ca1d81ff 100644
+--- a/tools/perf/util/unwind-libdw.c
++++ b/tools/perf/util/unwind-libdw.c
+@@ -231,7 +231,7 @@ int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
+
+ err = dwfl_getthread_frames(ui->dwfl, thread->tid, frame_callback, ui);
+
+- if (err && !ui->max_stack)
++ if (err && ui->max_stack != max_stack)
+ err = 0;
+
+ /*
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