diff --git a/Documentation/kernel-parameters.txt 
b/Documentation/kernel-parameters.txt
index 86a6746f6833..152ec4e87b57 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2795,6 +2795,8 @@ bytes respectively. Such letter suffixes can also be 
entirely omitted.
        nopat           [X86] Disable PAT (page attribute table extension of
                        pagetables) support.
 
+       nopcid          [X86-64] Disable the PCID cpu feature.
+
        norandmaps      Don't use address space randomization.  Equivalent to
                        echo 0 > /proc/sys/kernel/randomize_va_space
 
diff --git a/Makefile b/Makefile
index 64eb0bf614ee..075e429732e7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 9
-SUBLEVEL = 73
+SUBLEVEL = 74
 EXTRAVERSION =
 NAME = Roaring Lionus
 
@@ -788,6 +788,9 @@ KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
 # disable invalid "can't wrap" optimizations for signed / pointers
 KBUILD_CFLAGS  += $(call cc-option,-fno-strict-overflow)
 
+# Make sure -fstack-check isn't enabled (like gentoo apparently did)
+KBUILD_CFLAGS  += $(call cc-option,-fno-stack-check,)
+
 # conserve stack if available
 KBUILD_CFLAGS   += $(call cc-option,-fconserve-stack)
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b9c546a305a4..da8156fd3d58 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -45,7 +45,7 @@ config X86
        select ARCH_USE_CMPXCHG_LOCKREF         if X86_64
        select ARCH_USE_QUEUED_RWLOCKS
        select ARCH_USE_QUEUED_SPINLOCKS
-       select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH if SMP
+       select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
        select ARCH_WANTS_DYNAMIC_TASK_STRUCT
        select ARCH_WANT_FRAME_POINTERS
        select ARCH_WANT_IPC_PARSE_VERSION      if X86_32
diff --git a/arch/x86/include/asm/disabled-features.h 
b/arch/x86/include/asm/disabled-features.h
index 85599ad4d024..21c5ac15657b 100644
--- a/arch/x86/include/asm/disabled-features.h
+++ b/arch/x86/include/asm/disabled-features.h
@@ -21,11 +21,13 @@
 # define DISABLE_K6_MTRR       (1<<(X86_FEATURE_K6_MTRR & 31))
 # define DISABLE_CYRIX_ARR     (1<<(X86_FEATURE_CYRIX_ARR & 31))
 # define DISABLE_CENTAUR_MCR   (1<<(X86_FEATURE_CENTAUR_MCR & 31))
+# define DISABLE_PCID          0
 #else
 # define DISABLE_VME           0
 # define DISABLE_K6_MTRR       0
 # define DISABLE_CYRIX_ARR     0
 # define DISABLE_CENTAUR_MCR   0
+# define DISABLE_PCID          (1<<(X86_FEATURE_PCID & 31))
 #endif /* CONFIG_X86_64 */
 
 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
@@ -43,7 +45,7 @@
 #define DISABLED_MASK1 0
 #define DISABLED_MASK2 0
 #define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
-#define DISABLED_MASK4 0
+#define DISABLED_MASK4 (DISABLE_PCID)
 #define DISABLED_MASK5 0
 #define DISABLED_MASK6 0
 #define DISABLED_MASK7 0
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h
index 59405a248fc2..9b76cd331990 100644
--- a/arch/x86/include/asm/hardirq.h
+++ b/arch/x86/include/asm/hardirq.h
@@ -22,8 +22,8 @@ typedef struct {
 #ifdef CONFIG_SMP
        unsigned int irq_resched_count;
        unsigned int irq_call_count;
-       unsigned int irq_tlb_count;
 #endif
+       unsigned int irq_tlb_count;
 #ifdef CONFIG_X86_THERMAL_VECTOR
        unsigned int irq_thermal_count;
 #endif
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
index 72198c64e646..8b272a08d1a8 100644
--- a/arch/x86/include/asm/mmu.h
+++ b/arch/x86/include/asm/mmu.h
@@ -33,12 +33,6 @@ typedef struct {
 #endif
 } mm_context_t;
 
-#ifdef CONFIG_SMP
 void leave_mm(int cpu);
-#else
-static inline void leave_mm(int cpu)
-{
-}
-#endif
 
 #endif /* _ASM_X86_MMU_H */
diff --git a/arch/x86/include/asm/mmu_context.h 
b/arch/x86/include/asm/mmu_context.h
index f9dd22469388..d23e35584f15 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -99,10 +99,8 @@ static inline void load_mm_ldt(struct mm_struct *mm)
 
 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct 
*tsk)
 {
-#ifdef CONFIG_SMP
        if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
                this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
-#endif
 }
 
 static inline int init_new_context(struct task_struct *tsk,
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index fc5abff9b7fd..7d2ea6b1f7d9 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -7,6 +7,7 @@
 #include <asm/processor.h>
 #include <asm/cpufeature.h>
 #include <asm/special_insns.h>
+#include <asm/smp.h>
 
 static inline void __invpcid(unsigned long pcid, unsigned long addr,
                             unsigned long type)
@@ -65,10 +66,8 @@ static inline void invpcid_flush_all_nonglobals(void)
 #endif
 
 struct tlb_state {
-#ifdef CONFIG_SMP
        struct mm_struct *active_mm;
        int state;
-#endif
 
        /*
         * Access to this CR4 shadow and to H/W CR4 is protected by
@@ -192,6 +191,14 @@ static inline void __flush_tlb_all(void)
                __flush_tlb_global();
        else
                __flush_tlb();
+
+       /*
+        * Note: if we somehow had PCID but not PGE, then this wouldn't work --
+        * we'd end up flushing kernel translations for the current ASID but
+        * we might fail to flush kernel translations for other cached ASIDs.
+        *
+        * To avoid this issue, we force PCID off if PGE is off.
+        */
 }
 
 static inline void __flush_tlb_one(unsigned long addr)
@@ -205,7 +212,6 @@ static inline void __flush_tlb_one(unsigned long addr)
 /*
  * TLB flushing:
  *
- *  - flush_tlb() flushes the current mm struct TLBs
  *  - flush_tlb_all() flushes all processes TLBs
  *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
  *  - flush_tlb_page(vma, vmaddr) flushes one page
@@ -217,84 +223,6 @@ static inline void __flush_tlb_one(unsigned long addr)
  * and page-granular flushes are available only on i486 and up.
  */
 
-#ifndef CONFIG_SMP
-
-/* "_up" is for UniProcessor.
- *
- * This is a helper for other header functions.  *Not* intended to be called
- * directly.  All global TLB flushes need to either call this, or to bump the
- * vm statistics themselves.
- */
-static inline void __flush_tlb_up(void)
-{
-       count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
-       __flush_tlb();
-}
-
-static inline void flush_tlb_all(void)
-{
-       count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
-       __flush_tlb_all();
-}
-
-static inline void flush_tlb(void)
-{
-       __flush_tlb_up();
-}
-
-static inline void local_flush_tlb(void)
-{
-       __flush_tlb_up();
-}
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
-       if (mm == current->active_mm)
-               __flush_tlb_up();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma,
-                                 unsigned long addr)
-{
-       if (vma->vm_mm == current->active_mm)
-               __flush_tlb_one(addr);
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
-                                  unsigned long start, unsigned long end)
-{
-       if (vma->vm_mm == current->active_mm)
-               __flush_tlb_up();
-}
-
-static inline void flush_tlb_mm_range(struct mm_struct *mm,
-          unsigned long start, unsigned long end, unsigned long vmflag)
-{
-       if (mm == current->active_mm)
-               __flush_tlb_up();
-}
-
-static inline void native_flush_tlb_others(const struct cpumask *cpumask,
-                                          struct mm_struct *mm,
-                                          unsigned long start,
-                                          unsigned long end)
-{
-}
-
-static inline void reset_lazy_tlbstate(void)
-{
-}
-
-static inline void flush_tlb_kernel_range(unsigned long start,
-                                         unsigned long end)
-{
-       flush_tlb_all();
-}
-
-#else  /* SMP */
-
-#include <asm/smp.h>
-
 #define local_flush_tlb() __flush_tlb()
 
 #define flush_tlb_mm(mm)       flush_tlb_mm_range(mm, 0UL, TLB_FLUSH_ALL, 0UL)
@@ -303,13 +231,14 @@ static inline void flush_tlb_kernel_range(unsigned long 
start,
                flush_tlb_mm_range(vma->vm_mm, start, end, vma->vm_flags)
 
 extern void flush_tlb_all(void);
-extern void flush_tlb_current_task(void);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
 extern void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
                                unsigned long end, unsigned long vmflag);
 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
 
-#define flush_tlb()    flush_tlb_current_task()
+static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long a)
+{
+       flush_tlb_mm_range(vma->vm_mm, a, a + PAGE_SIZE, VM_NONE);
+}
 
 void native_flush_tlb_others(const struct cpumask *cpumask,
                                struct mm_struct *mm,
@@ -324,8 +253,6 @@ static inline void reset_lazy_tlbstate(void)
        this_cpu_write(cpu_tlbstate.active_mm, &init_mm);
 }
 
-#endif /* SMP */
-
 #ifndef CONFIG_PARAVIRT
 #define flush_tlb_others(mask, mm, start, end) \
        native_flush_tlb_others(mask, mm, start, end)
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index bd17db15a2c1..0b6124315441 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -19,6 +19,14 @@
 
 void __init check_bugs(void)
 {
+#ifdef CONFIG_X86_32
+       /*
+        * Regardless of whether PCID is enumerated, the SDM says
+        * that it can't be enabled in 32-bit mode.
+        */
+       setup_clear_cpu_cap(X86_FEATURE_PCID);
+#endif
+
        identify_boot_cpu();
 #ifndef CONFIG_SMP
        pr_info("CPU: ");
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 4eece91ada37..91588be529b9 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -163,6 +163,24 @@ static int __init x86_mpx_setup(char *s)
 }
 __setup("nompx", x86_mpx_setup);
 
+#ifdef CONFIG_X86_64
+static int __init x86_pcid_setup(char *s)
+{
+       /* require an exact match without trailing characters */
+       if (strlen(s))
+               return 0;
+
+       /* do not emit a message if the feature is not present */
+       if (!boot_cpu_has(X86_FEATURE_PCID))
+               return 1;
+
+       setup_clear_cpu_cap(X86_FEATURE_PCID);
+       pr_info("nopcid: PCID feature disabled\n");
+       return 1;
+}
+__setup("nopcid", x86_pcid_setup);
+#endif
+
 static int __init x86_noinvpcid_setup(char *s)
 {
        /* noinvpcid doesn't accept parameters */
@@ -306,6 +324,25 @@ static __always_inline void setup_smap(struct cpuinfo_x86 
*c)
        }
 }
 
+static void setup_pcid(struct cpuinfo_x86 *c)
+{
+       if (cpu_has(c, X86_FEATURE_PCID)) {
+               if (cpu_has(c, X86_FEATURE_PGE)) {
+                       cr4_set_bits(X86_CR4_PCIDE);
+               } else {
+                       /*
+                        * flush_tlb_all(), as currently implemented, won't
+                        * work if PCID is on but PGE is not.  Since that
+                        * combination doesn't exist on real hardware, there's
+                        * no reason to try to fully support it, but it's
+                        * polite to avoid corrupting data if we're on
+                        * an improperly configured VM.
+                        */
+                       clear_cpu_cap(c, X86_FEATURE_PCID);
+               }
+       }
+}
+
 /*
  * Protection Keys are not available in 32-bit mode.
  */
@@ -1064,6 +1101,9 @@ static void identify_cpu(struct cpuinfo_x86 *c)
        setup_smep(c);
        setup_smap(c);
 
+       /* Set up PCID */
+       setup_pcid(c);
+
        /*
         * The vendor-specific functions might have changed features.
         * Now we do "generic changes."
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 067f9813fd2c..ce020a69bba9 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -106,6 +106,10 @@ void __noreturn machine_real_restart(unsigned int type)
        load_cr3(initial_page_table);
 #else
        write_cr3(real_mode_header->trampoline_pgd);
+
+       /* Exiting long mode will fail if CR4.PCIDE is set. */
+       if (static_cpu_has(X86_FEATURE_PCID))
+               cr4_clear_bits(X86_CR4_PCIDE);
 #endif
 
        /* Jump to the identity-mapped low memory code */
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 9fe7b9e1ae30..e803d72ef525 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -115,25 +115,16 @@ static inline void 
smpboot_setup_warm_reset_vector(unsigned long start_eip)
        spin_lock_irqsave(&rtc_lock, flags);
        CMOS_WRITE(0xa, 0xf);
        spin_unlock_irqrestore(&rtc_lock, flags);
-       local_flush_tlb();
-       pr_debug("1.\n");
        *((volatile unsigned short *)phys_to_virt(TRAMPOLINE_PHYS_HIGH)) =
                                                        start_eip >> 4;
-       pr_debug("2.\n");
        *((volatile unsigned short *)phys_to_virt(TRAMPOLINE_PHYS_LOW)) =
                                                        start_eip & 0xf;
-       pr_debug("3.\n");
 }
 
 static inline void smpboot_restore_warm_reset_vector(void)
 {
        unsigned long flags;
 
-       /*
-        * Install writable page 0 entry to set BIOS data area.
-        */
-       local_flush_tlb();
-
        /*
         * Paranoid:  Set warm reset code and vector here back
         * to default values.
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 01f30e56f99e..4b3012888ada 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -191,7 +191,7 @@ static void mark_screen_rdonly(struct mm_struct *mm)
        pte_unmap_unlock(pte, ptl);
 out:
        up_write(&mm->mmap_sem);
-       flush_tlb();
+       flush_tlb_mm_range(mm, 0xA0000, 0xA0000 + 32*PAGE_SIZE, 0UL);
 }
 
 
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 889e7619a091..0381638168d1 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -764,10 +764,8 @@ void __init zone_sizes_init(void)
 }
 
 DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = {
-#ifdef CONFIG_SMP
        .active_mm = &init_mm,
        .state = 0,
-#endif
        .cr4 = ~0UL,    /* fail hard if we screw up cr4 shadow initialization */
 };
 EXPORT_SYMBOL_GPL(cpu_tlbstate);
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 75fb01109f94..53b72fb4e781 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -15,7 +15,7 @@
 #include <linux/debugfs.h>
 
 /*
- *     Smarter SMP flushing macros.
+ *     TLB flushing, formerly SMP-only
  *             c/o Linus Torvalds.
  *
  *     These mean you can really definitely utterly forget about
@@ -28,8 +28,6 @@
  *     Implement flush IPI by CALL_FUNCTION_VECTOR, Alex Shi
  */
 
-#ifdef CONFIG_SMP
-
 struct flush_tlb_info {
        struct mm_struct *flush_mm;
        unsigned long flush_start;
@@ -59,8 +57,6 @@ void leave_mm(int cpu)
 }
 EXPORT_SYMBOL_GPL(leave_mm);
 
-#endif /* CONFIG_SMP */
-
 void switch_mm(struct mm_struct *prev, struct mm_struct *next,
               struct task_struct *tsk)
 {
@@ -91,10 +87,8 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct 
mm_struct *next,
                                set_pgd(pgd, init_mm.pgd[stack_pgd_index]);
                }
 
-#ifdef CONFIG_SMP
                this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
                this_cpu_write(cpu_tlbstate.active_mm, next);
-#endif
 
                cpumask_set_cpu(cpu, mm_cpumask(next));
 
@@ -152,9 +146,7 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct 
mm_struct *next,
                if (unlikely(prev->context.ldt != next->context.ldt))
                        load_mm_ldt(next);
 #endif
-       }
-#ifdef CONFIG_SMP
-         else {
+       } else {
                this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
                BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
 
@@ -181,11 +173,8 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct 
mm_struct *next,
                        load_mm_ldt(next);
                }
        }
-#endif
 }
 
-#ifdef CONFIG_SMP
-
 /*
  * The flush IPI assumes that a thread switch happens in this order:
  * [cpu0: the cpu that switches]
@@ -287,23 +276,6 @@ void native_flush_tlb_others(const struct cpumask *cpumask,
        smp_call_function_many(cpumask, flush_tlb_func, &info, 1);
 }
 
-void flush_tlb_current_task(void)
-{
-       struct mm_struct *mm = current->mm;
-
-       preempt_disable();
-
-       count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
-
-       /* This is an implicit full barrier that synchronizes with switch_mm. */
-       local_flush_tlb();
-
-       trace_tlb_flush(TLB_LOCAL_SHOOTDOWN, TLB_FLUSH_ALL);
-       if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
-               flush_tlb_others(mm_cpumask(mm), mm, 0UL, TLB_FLUSH_ALL);
-       preempt_enable();
-}
-
 /*
  * See Documentation/x86/tlb.txt for details.  We choose 33
  * because it is large enough to cover the vast majority (at
@@ -324,6 +296,12 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned 
long start,
        unsigned long base_pages_to_flush = TLB_FLUSH_ALL;
 
        preempt_disable();
+
+       if ((end != TLB_FLUSH_ALL) && !(vmflag & VM_HUGETLB))
+               base_pages_to_flush = (end - start) >> PAGE_SHIFT;
+       if (base_pages_to_flush > tlb_single_page_flush_ceiling)
+               base_pages_to_flush = TLB_FLUSH_ALL;
+
        if (current->active_mm != mm) {
                /* Synchronize with switch_mm. */
                smp_mb();
@@ -340,15 +318,11 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned 
long start,
                goto out;
        }
 
-       if ((end != TLB_FLUSH_ALL) && !(vmflag & VM_HUGETLB))
-               base_pages_to_flush = (end - start) >> PAGE_SHIFT;
-
        /*
         * Both branches below are implicit full barriers (MOV to CR or
         * INVLPG) that synchronize with switch_mm.
         */
-       if (base_pages_to_flush > tlb_single_page_flush_ceiling) {
-               base_pages_to_flush = TLB_FLUSH_ALL;
+       if (base_pages_to_flush == TLB_FLUSH_ALL) {
                count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ALL);
                local_flush_tlb();
        } else {
@@ -369,33 +343,6 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned 
long start,
        preempt_enable();
 }
 
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long start)
-{
-       struct mm_struct *mm = vma->vm_mm;
-
-       preempt_disable();
-
-       if (current->active_mm == mm) {
-               if (current->mm) {
-                       /*
-                        * Implicit full barrier (INVLPG) that synchronizes
-                        * with switch_mm.
-                        */
-                       __flush_tlb_one(start);
-               } else {
-                       leave_mm(smp_processor_id());
-
-                       /* Synchronize with switch_mm. */
-                       smp_mb();
-               }
-       }
-
-       if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
-               flush_tlb_others(mm_cpumask(mm), mm, start, start + PAGE_SIZE);
-
-       preempt_enable();
-}
-
 static void do_flush_tlb_all(void *info)
 {
        count_vm_tlb_event(NR_TLB_REMOTE_FLUSH_RECEIVED);
@@ -480,5 +427,3 @@ static int __init create_tlb_single_page_flush_ceiling(void)
        return 0;
 }
 late_initcall(create_tlb_single_page_flush_ceiling);
-
-#endif /* CONFIG_SMP */
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 8f1f7efa848c..2bea87cc0ff2 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -444,6 +444,12 @@ static void __init xen_init_cpuid_mask(void)
                ~((1 << X86_FEATURE_MTRR) |  /* disable MTRR */
                  (1 << X86_FEATURE_ACC));   /* thermal monitoring */
 
+       /*
+        * Xen PV would need some work to support PCID: CR3 handling as well
+        * as xen_flush_tlb_others() would need updating.
+        */
+       cpuid_leaf1_ecx_mask &= ~(1 << (X86_FEATURE_PCID % 32));  /* disable 
PCID */
+
        if (!xen_initial_domain())
                cpuid_leaf1_edx_mask &=
                        ~((1 << X86_FEATURE_ACPI));  /* disable ACPI */
diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index 19c6477af19f..a856371bbe58 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -575,10 +575,10 @@ static int poll_cq(struct t4_wq *wq, struct t4_cq *cq, 
struct t4_cqe *cqe,
                        ret = -EAGAIN;
                        goto skip_cqe;
                }
-               if (unlikely((CQE_WRID_MSN(hw_cqe) != (wq->rq.msn)))) {
+               if (unlikely(!CQE_STATUS(hw_cqe) &&
+                            CQE_WRID_MSN(hw_cqe) != wq->rq.msn)) {
                        t4_set_wq_in_error(wq);
-                       hw_cqe->header |= htonl(CQE_STATUS_V(T4_ERR_MSN));
-                       goto proc_cqe;
+                       hw_cqe->header |= cpu_to_be32(CQE_STATUS_V(T4_ERR_MSN));
                }
                goto proc_cqe;
        }
diff --git a/drivers/net/ethernet/broadcom/tg3.c 
b/drivers/net/ethernet/broadcom/tg3.c
index edae2dcc4927..bb22d325e965 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -14226,7 +14226,9 @@ static int tg3_change_mtu(struct net_device *dev, int 
new_mtu)
        /* Reset PHY, otherwise the read DMA engine will be in a mode that
         * breaks all requests to 256 bytes.
         */
-       if (tg3_asic_rev(tp) == ASIC_REV_57766)
+       if (tg3_asic_rev(tp) == ASIC_REV_57766 ||
+           tg3_asic_rev(tp) == ASIC_REV_5717 ||
+           tg3_asic_rev(tp) == ASIC_REV_5719)
                reset_phy = true;
 
        err = tg3_restart_hw(tp, reset_phy);
diff --git a/drivers/net/ethernet/freescale/fec_main.c 
b/drivers/net/ethernet/freescale/fec_main.c
index 849b8712ec81..917091871259 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -172,10 +172,12 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address");
 #endif /* CONFIG_M5272 */
 
 /* The FEC stores dest/src/type/vlan, data, and checksum for receive packets.
+ *
+ * 2048 byte skbufs are allocated. However, alignment requirements
+ * varies between FEC variants. Worst case is 64, so round down by 64.
  */
-#define PKT_MAXBUF_SIZE                1522
+#define PKT_MAXBUF_SIZE                (round_down(2048 - 64, 64))
 #define PKT_MINBUF_SIZE                64
-#define PKT_MAXBLR_SIZE                1536
 
 /* FEC receive acceleration */
 #define FEC_RACC_IPDIS         (1 << 1)
@@ -813,6 +815,12 @@ static void fec_enet_bd_init(struct net_device *dev)
                for (i = 0; i < txq->bd.ring_size; i++) {
                        /* Initialize the BD for every fragment in the page. */
                        bdp->cbd_sc = cpu_to_fec16(0);
+                       if (bdp->cbd_bufaddr &&
+                           !IS_TSO_HEADER(txq, fec32_to_cpu(bdp->cbd_bufaddr)))
+                               dma_unmap_single(&fep->pdev->dev,
+                                                fec32_to_cpu(bdp->cbd_bufaddr),
+                                                fec16_to_cpu(bdp->cbd_datlen),
+                                                DMA_TO_DEVICE);
                        if (txq->tx_skbuff[i]) {
                                dev_kfree_skb_any(txq->tx_skbuff[i]);
                                txq->tx_skbuff[i] = NULL;
@@ -847,7 +855,7 @@ static void fec_enet_enable_ring(struct net_device *ndev)
        for (i = 0; i < fep->num_rx_queues; i++) {
                rxq = fep->rx_queue[i];
                writel(rxq->bd.dma, fep->hwp + FEC_R_DES_START(i));
-               writel(PKT_MAXBLR_SIZE, fep->hwp + FEC_R_BUFF_SIZE(i));
+               writel(PKT_MAXBUF_SIZE, fep->hwp + FEC_R_BUFF_SIZE(i));
 
                /* enable DMA1/2 */
                if (i)
diff --git a/drivers/net/ethernet/marvell/mvmdio.c 
b/drivers/net/ethernet/marvell/mvmdio.c
index a0d1b084ecec..7aeb7fedb364 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -232,7 +232,8 @@ static int orion_mdio_probe(struct platform_device *pdev)
                        dev->regs + MVMDIO_ERR_INT_MASK);
 
        } else if (dev->err_interrupt == -EPROBE_DEFER) {
-               return -EPROBE_DEFER;
+               ret = -EPROBE_DEFER;
+               goto out_mdio;
        }
 
        mutex_init(&dev->lock);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c 
b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index f7fabecc104f..4c3f1cb7e2c9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -367,7 +367,7 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev 
*dev, u16 op,
        case MLX5_CMD_OP_QUERY_VPORT_COUNTER:
        case MLX5_CMD_OP_ALLOC_Q_COUNTER:
        case MLX5_CMD_OP_QUERY_Q_COUNTER:
-       case MLX5_CMD_OP_SET_RATE_LIMIT:
+       case MLX5_CMD_OP_SET_PP_RATE_LIMIT:
        case MLX5_CMD_OP_QUERY_RATE_LIMIT:
        case MLX5_CMD_OP_ALLOC_PD:
        case MLX5_CMD_OP_ALLOC_UAR:
@@ -502,7 +502,7 @@ const char *mlx5_command_str(int command)
        MLX5_COMMAND_STR_CASE(ALLOC_Q_COUNTER);
        MLX5_COMMAND_STR_CASE(DEALLOC_Q_COUNTER);
        MLX5_COMMAND_STR_CASE(QUERY_Q_COUNTER);
-       MLX5_COMMAND_STR_CASE(SET_RATE_LIMIT);
+       MLX5_COMMAND_STR_CASE(SET_PP_RATE_LIMIT);
        MLX5_COMMAND_STR_CASE(QUERY_RATE_LIMIT);
        MLX5_COMMAND_STR_CASE(ALLOC_PD);
        MLX5_COMMAND_STR_CASE(DEALLOC_PD);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c 
b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 9d3722930c95..38981db43bc3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3038,6 +3038,7 @@ static netdev_features_t 
mlx5e_vxlan_features_check(struct mlx5e_priv *priv,
                                                    struct sk_buff *skb,
                                                    netdev_features_t features)
 {
+       unsigned int offset = 0;
        struct udphdr *udph;
        u16 proto;
        u16 port = 0;
@@ -3047,7 +3048,7 @@ static netdev_features_t 
mlx5e_vxlan_features_check(struct mlx5e_priv *priv,
                proto = ip_hdr(skb)->protocol;
                break;
        case htons(ETH_P_IPV6):
-               proto = ipv6_hdr(skb)->nexthdr;
+               proto = ipv6_find_hdr(skb, &offset, -1, NULL, NULL);
                break;
        default:
                goto out;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/qp.c 
b/drivers/net/ethernet/mellanox/mlx5/core/qp.c
index d0a4005fe63a..9346f3985edf 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/qp.c
@@ -303,8 +303,8 @@ int mlx5_core_create_qp(struct mlx5_core_dev *dev,
 err_cmd:
        memset(din, 0, sizeof(din));
        memset(dout, 0, sizeof(dout));
-       MLX5_SET(destroy_qp_in, in, opcode, MLX5_CMD_OP_DESTROY_QP);
-       MLX5_SET(destroy_qp_in, in, qpn, qp->qpn);
+       MLX5_SET(destroy_qp_in, din, opcode, MLX5_CMD_OP_DESTROY_QP);
+       MLX5_SET(destroy_qp_in, din, qpn, qp->qpn);
        mlx5_cmd_exec(dev, din, sizeof(din), dout, sizeof(dout));
        return err;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/rl.c 
b/drivers/net/ethernet/mellanox/mlx5/core/rl.c
index 104902a93a0b..2be9ec5fd651 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/rl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/rl.c
@@ -60,16 +60,16 @@ static struct mlx5_rl_entry *find_rl_entry(struct 
mlx5_rl_table *table,
        return ret_entry;
 }
 
-static int mlx5_set_rate_limit_cmd(struct mlx5_core_dev *dev,
+static int mlx5_set_pp_rate_limit_cmd(struct mlx5_core_dev *dev,
                                   u32 rate, u16 index)
 {
-       u32 in[MLX5_ST_SZ_DW(set_rate_limit_in)]   = {0};
-       u32 out[MLX5_ST_SZ_DW(set_rate_limit_out)] = {0};
+       u32 in[MLX5_ST_SZ_DW(set_pp_rate_limit_in)]   = {0};
+       u32 out[MLX5_ST_SZ_DW(set_pp_rate_limit_out)] = {0};
 
-       MLX5_SET(set_rate_limit_in, in, opcode,
-                MLX5_CMD_OP_SET_RATE_LIMIT);
-       MLX5_SET(set_rate_limit_in, in, rate_limit_index, index);
-       MLX5_SET(set_rate_limit_in, in, rate_limit, rate);
+       MLX5_SET(set_pp_rate_limit_in, in, opcode,
+                MLX5_CMD_OP_SET_PP_RATE_LIMIT);
+       MLX5_SET(set_pp_rate_limit_in, in, rate_limit_index, index);
+       MLX5_SET(set_pp_rate_limit_in, in, rate_limit, rate);
        return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 }
 
@@ -108,7 +108,7 @@ int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u32 rate, 
u16 *index)
                entry->refcount++;
        } else {
                /* new rate limit */
-               err = mlx5_set_rate_limit_cmd(dev, rate, entry->index);
+               err = mlx5_set_pp_rate_limit_cmd(dev, rate, entry->index);
                if (err) {
                        mlx5_core_err(dev, "Failed configuring rate: %u (%d)\n",
                                      rate, err);
@@ -144,7 +144,7 @@ void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, u32 
rate)
        entry->refcount--;
        if (!entry->refcount) {
                /* need to remove rate */
-               mlx5_set_rate_limit_cmd(dev, 0, entry->index);
+               mlx5_set_pp_rate_limit_cmd(dev, 0, entry->index);
                entry->rate = 0;
        }
 
@@ -197,8 +197,8 @@ void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev)
        /* Clear all configured rates */
        for (i = 0; i < table->max_size; i++)
                if (table->rl_entry[i].rate)
-                       mlx5_set_rate_limit_cmd(dev, 0,
-                                               table->rl_entry[i].index);
+                       mlx5_set_pp_rate_limit_cmd(dev, 0,
+                                                  table->rl_entry[i].index);
 
        kfree(dev->priv.rl_table.rl_entry);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vxlan.c 
b/drivers/net/ethernet/mellanox/mlx5/core/vxlan.c
index 07a9ba6cfc70..2f74953e4561 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/vxlan.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/vxlan.c
@@ -71,9 +71,9 @@ struct mlx5e_vxlan *mlx5e_vxlan_lookup_port(struct mlx5e_priv 
*priv, u16 port)
        struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
        struct mlx5e_vxlan *vxlan;
 
-       spin_lock(&vxlan_db->lock);
+       spin_lock_bh(&vxlan_db->lock);
        vxlan = radix_tree_lookup(&vxlan_db->tree, port);
-       spin_unlock(&vxlan_db->lock);
+       spin_unlock_bh(&vxlan_db->lock);
 
        return vxlan;
 }
@@ -88,8 +88,12 @@ static void mlx5e_vxlan_add_port(struct work_struct *work)
        struct mlx5e_vxlan *vxlan;
        int err;
 
-       if (mlx5e_vxlan_lookup_port(priv, port))
+       mutex_lock(&priv->state_lock);
+       vxlan = mlx5e_vxlan_lookup_port(priv, port);
+       if (vxlan) {
+               atomic_inc(&vxlan->refcount);
                goto free_work;
+       }
 
        if (mlx5e_vxlan_core_add_port_cmd(priv->mdev, port))
                goto free_work;
@@ -99,10 +103,11 @@ static void mlx5e_vxlan_add_port(struct work_struct *work)
                goto err_delete_port;
 
        vxlan->udp_port = port;
+       atomic_set(&vxlan->refcount, 1);
 
-       spin_lock_irq(&vxlan_db->lock);
+       spin_lock_bh(&vxlan_db->lock);
        err = radix_tree_insert(&vxlan_db->tree, vxlan->udp_port, vxlan);
-       spin_unlock_irq(&vxlan_db->lock);
+       spin_unlock_bh(&vxlan_db->lock);
        if (err)
                goto err_free;
 
@@ -113,35 +118,39 @@ static void mlx5e_vxlan_add_port(struct work_struct *work)
 err_delete_port:
        mlx5e_vxlan_core_del_port_cmd(priv->mdev, port);
 free_work:
+       mutex_unlock(&priv->state_lock);
        kfree(vxlan_work);
 }
 
-static void __mlx5e_vxlan_core_del_port(struct mlx5e_priv *priv, u16 port)
+static void mlx5e_vxlan_del_port(struct work_struct *work)
 {
+       struct mlx5e_vxlan_work *vxlan_work =
+               container_of(work, struct mlx5e_vxlan_work, work);
+       struct mlx5e_priv *priv         = vxlan_work->priv;
        struct mlx5e_vxlan_db *vxlan_db = &priv->vxlan;
+       u16 port = vxlan_work->port;
        struct mlx5e_vxlan *vxlan;
+       bool remove = false;
 
-       spin_lock_irq(&vxlan_db->lock);
-       vxlan = radix_tree_delete(&vxlan_db->tree, port);
-       spin_unlock_irq(&vxlan_db->lock);
-
+       mutex_lock(&priv->state_lock);
+       spin_lock_bh(&vxlan_db->lock);
+       vxlan = radix_tree_lookup(&vxlan_db->tree, port);
        if (!vxlan)
-               return;
-
-       mlx5e_vxlan_core_del_port_cmd(priv->mdev, vxlan->udp_port);
-
-       kfree(vxlan);
-}
+               goto out_unlock;
 
-static void mlx5e_vxlan_del_port(struct work_struct *work)
-{
-       struct mlx5e_vxlan_work *vxlan_work =
-               container_of(work, struct mlx5e_vxlan_work, work);
-       struct mlx5e_priv *priv = vxlan_work->priv;
-       u16 port = vxlan_work->port;
+       if (atomic_dec_and_test(&vxlan->refcount)) {
+               radix_tree_delete(&vxlan_db->tree, port);
+               remove = true;
+       }
 
-       __mlx5e_vxlan_core_del_port(priv, port);
+out_unlock:
+       spin_unlock_bh(&vxlan_db->lock);
 
+       if (remove) {
+               mlx5e_vxlan_core_del_port_cmd(priv->mdev, port);
+               kfree(vxlan);
+       }
+       mutex_unlock(&priv->state_lock);
        kfree(vxlan_work);
 }
 
@@ -171,12 +180,11 @@ void mlx5e_vxlan_cleanup(struct mlx5e_priv *priv)
        struct mlx5e_vxlan *vxlan;
        unsigned int port = 0;
 
-       spin_lock_irq(&vxlan_db->lock);
+       /* Lockless since we are the only radix-tree consumers, wq is disabled 
*/
        while (radix_tree_gang_lookup(&vxlan_db->tree, (void **)&vxlan, port, 
1)) {
                port = vxlan->udp_port;
-               spin_unlock_irq(&vxlan_db->lock);
-               __mlx5e_vxlan_core_del_port(priv, (u16)port);
-               spin_lock_irq(&vxlan_db->lock);
+               radix_tree_delete(&vxlan_db->tree, port);
+               mlx5e_vxlan_core_del_port_cmd(priv->mdev, port);
+               kfree(vxlan);
        }
-       spin_unlock_irq(&vxlan_db->lock);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vxlan.h 
b/drivers/net/ethernet/mellanox/mlx5/core/vxlan.h
index 5def12c048e3..5ef6ae7d568a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/vxlan.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/vxlan.h
@@ -36,6 +36,7 @@
 #include "en.h"
 
 struct mlx5e_vxlan {
+       atomic_t refcount;
        u16 udp_port;
 };
 
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index fbf5945ce00d..2032a6de026b 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -624,6 +624,7 @@ static int ksz9031_read_status(struct phy_device *phydev)
                phydev->link = 0;
                if (phydev->drv->config_intr && phy_interrupt_is_valid(phydev))
                        phydev->drv->config_intr(phydev);
+               return genphy_config_aneg(phydev);
        }
 
        return 0;
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 105fbfb47e3a..db65d9ad4488 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -907,6 +907,7 @@ static const struct usb_device_id products[] = {
        {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(0x1199, 0x9091, 8)},    /* Sierra Wireless EM7565 */
        {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 */
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index e72234efb648..9b5fc502f6a1 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -576,9 +576,9 @@ enum qeth_cq {
 };
 
 struct qeth_ipato {
-       int enabled;
-       int invert4;
-       int invert6;
+       bool enabled;
+       bool invert4;
+       bool invert6;
        struct list_head entries;
 };
 
diff --git a/drivers/s390/net/qeth_core_main.c 
b/drivers/s390/net/qeth_core_main.c
index 838ed6213118..df8f74cb1406 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -1475,9 +1475,9 @@ static int qeth_setup_card(struct qeth_card *card)
        qeth_set_intial_options(card);
        /* IP address takeover */
        INIT_LIST_HEAD(&card->ipato.entries);
-       card->ipato.enabled = 0;
-       card->ipato.invert4 = 0;
-       card->ipato.invert6 = 0;
+       card->ipato.enabled = false;
+       card->ipato.invert4 = false;
+       card->ipato.invert6 = false;
        /* init QDIO stuff */
        qeth_init_qdio_info(card);
        INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h
index 26f79533e62e..eedf9b01a496 100644
--- a/drivers/s390/net/qeth_l3.h
+++ b/drivers/s390/net/qeth_l3.h
@@ -80,7 +80,7 @@ void qeth_l3_del_vipa(struct qeth_card *, enum 
qeth_prot_versions, const u8 *);
 int qeth_l3_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions,
                        const u8 *);
-int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
+void qeth_l3_update_ipato(struct qeth_card *card);
 struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions);
 int qeth_l3_add_ip(struct qeth_card *, struct qeth_ipaddr *);
 int qeth_l3_delete_ip(struct qeth_card *, struct qeth_ipaddr *);
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index f91e70c369ed..1487f8a0c575 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -168,8 +168,8 @@ static void qeth_l3_convert_addr_to_bits(u8 *addr, u8 
*bits, int len)
        }
 }
 
-int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
-                                               struct qeth_ipaddr *addr)
+static bool qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
+                                            struct qeth_ipaddr *addr)
 {
        struct qeth_ipato_entry *ipatoe;
        u8 addr_bits[128] = {0, };
@@ -178,6 +178,8 @@ int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *card,
 
        if (!card->ipato.enabled)
                return 0;
+       if (addr->type != QETH_IP_TYPE_NORMAL)
+               return 0;
 
        qeth_l3_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
                                  (addr->proto == QETH_PROT_IPV4)? 4:16);
@@ -293,8 +295,7 @@ int qeth_l3_add_ip(struct qeth_card *card, struct 
qeth_ipaddr *tmp_addr)
                memcpy(addr, tmp_addr, sizeof(struct qeth_ipaddr));
                addr->ref_counter = 1;
 
-               if (addr->type == QETH_IP_TYPE_NORMAL  &&
-                               qeth_l3_is_addr_covered_by_ipato(card, addr)) {
+               if (qeth_l3_is_addr_covered_by_ipato(card, addr)) {
                        QETH_CARD_TEXT(card, 2, "tkovaddr");
                        addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
                }
@@ -607,6 +608,27 @@ int qeth_l3_setrouting_v6(struct qeth_card *card)
 /*
  * IP address takeover related functions
  */
+
+/**
+ * qeth_l3_update_ipato() - Update 'takeover' property, for all NORMAL IPs.
+ *
+ * Caller must hold ip_lock.
+ */
+void qeth_l3_update_ipato(struct qeth_card *card)
+{
+       struct qeth_ipaddr *addr;
+       unsigned int i;
+
+       hash_for_each(card->ip_htable, i, addr, hnode) {
+               if (addr->type != QETH_IP_TYPE_NORMAL)
+                       continue;
+               if (qeth_l3_is_addr_covered_by_ipato(card, addr))
+                       addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
+               else
+                       addr->set_flags &= ~QETH_IPA_SETIP_TAKEOVER_FLAG;
+       }
+}
+
 static void qeth_l3_clear_ipato_list(struct qeth_card *card)
 {
        struct qeth_ipato_entry *ipatoe, *tmp;
@@ -618,6 +640,7 @@ static void qeth_l3_clear_ipato_list(struct qeth_card *card)
                kfree(ipatoe);
        }
 
+       qeth_l3_update_ipato(card);
        spin_unlock_bh(&card->ip_lock);
 }
 
@@ -642,8 +665,10 @@ int qeth_l3_add_ipato_entry(struct qeth_card *card,
                }
        }
 
-       if (!rc)
+       if (!rc) {
                list_add_tail(&new->entry, &card->ipato.entries);
+               qeth_l3_update_ipato(card);
+       }
 
        spin_unlock_bh(&card->ip_lock);
 
@@ -666,6 +691,7 @@ void qeth_l3_del_ipato_entry(struct qeth_card *card,
                            (proto == QETH_PROT_IPV4)? 4:16) &&
                    (ipatoe->mask_bits == mask_bits)) {
                        list_del(&ipatoe->entry);
+                       qeth_l3_update_ipato(card);
                        kfree(ipatoe);
                }
        }
diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index cffe42f5775d..d6bdfc6e905a 100644
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -372,8 +372,8 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct device 
*dev,
                struct device_attribute *attr, const char *buf, size_t count)
 {
        struct qeth_card *card = dev_get_drvdata(dev);
-       struct qeth_ipaddr *addr;
-       int i, rc = 0;
+       bool enable;
+       int rc = 0;
 
        if (!card)
                return -EINVAL;
@@ -386,25 +386,18 @@ static ssize_t qeth_l3_dev_ipato_enable_store(struct 
device *dev,
        }
 
        if (sysfs_streq(buf, "toggle")) {
-               card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
-       } else if (sysfs_streq(buf, "1")) {
-               card->ipato.enabled = 1;
-               hash_for_each(card->ip_htable, i, addr, hnode) {
-                               if ((addr->type == QETH_IP_TYPE_NORMAL) &&
-                               qeth_l3_is_addr_covered_by_ipato(card, addr))
-                                       addr->set_flags |=
-                                       QETH_IPA_SETIP_TAKEOVER_FLAG;
-                       }
-       } else if (sysfs_streq(buf, "0")) {
-               card->ipato.enabled = 0;
-               hash_for_each(card->ip_htable, i, addr, hnode) {
-                       if (addr->set_flags &
-                       QETH_IPA_SETIP_TAKEOVER_FLAG)
-                               addr->set_flags &=
-                               ~QETH_IPA_SETIP_TAKEOVER_FLAG;
-                       }
-       } else
+               enable = !card->ipato.enabled;
+       } else if (kstrtobool(buf, &enable)) {
                rc = -EINVAL;
+               goto out;
+       }
+
+       if (card->ipato.enabled != enable) {
+               card->ipato.enabled = enable;
+               spin_lock_bh(&card->ip_lock);
+               qeth_l3_update_ipato(card);
+               spin_unlock_bh(&card->ip_lock);
+       }
 out:
        mutex_unlock(&card->conf_mutex);
        return rc ? rc : count;
@@ -430,20 +423,27 @@ static ssize_t qeth_l3_dev_ipato_invert4_store(struct 
device *dev,
                                const char *buf, size_t count)
 {
        struct qeth_card *card = dev_get_drvdata(dev);
+       bool invert;
        int rc = 0;
 
        if (!card)
                return -EINVAL;
 
        mutex_lock(&card->conf_mutex);
-       if (sysfs_streq(buf, "toggle"))
-               card->ipato.invert4 = (card->ipato.invert4)? 0 : 1;
-       else if (sysfs_streq(buf, "1"))
-               card->ipato.invert4 = 1;
-       else if (sysfs_streq(buf, "0"))
-               card->ipato.invert4 = 0;
-       else
+       if (sysfs_streq(buf, "toggle")) {
+               invert = !card->ipato.invert4;
+       } else if (kstrtobool(buf, &invert)) {
                rc = -EINVAL;
+               goto out;
+       }
+
+       if (card->ipato.invert4 != invert) {
+               card->ipato.invert4 = invert;
+               spin_lock_bh(&card->ip_lock);
+               qeth_l3_update_ipato(card);
+               spin_unlock_bh(&card->ip_lock);
+       }
+out:
        mutex_unlock(&card->conf_mutex);
        return rc ? rc : count;
 }
@@ -609,20 +609,27 @@ static ssize_t qeth_l3_dev_ipato_invert6_store(struct 
device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
 {
        struct qeth_card *card = dev_get_drvdata(dev);
+       bool invert;
        int rc = 0;
 
        if (!card)
                return -EINVAL;
 
        mutex_lock(&card->conf_mutex);
-       if (sysfs_streq(buf, "toggle"))
-               card->ipato.invert6 = (card->ipato.invert6)? 0 : 1;
-       else if (sysfs_streq(buf, "1"))
-               card->ipato.invert6 = 1;
-       else if (sysfs_streq(buf, "0"))
-               card->ipato.invert6 = 0;
-       else
+       if (sysfs_streq(buf, "toggle")) {
+               invert = !card->ipato.invert6;
+       } else if (kstrtobool(buf, &invert)) {
                rc = -EINVAL;
+               goto out;
+       }
+
+       if (card->ipato.invert6 != invert) {
+               card->ipato.invert6 = invert;
+               spin_lock_bh(&card->ip_lock);
+               qeth_l3_update_ipato(card);
+               spin_unlock_bh(&card->ip_lock);
+       }
+out:
        mutex_unlock(&card->conf_mutex);
        return rc ? rc : count;
 }
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index bdf0e6e89991..faf50df81622 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1764,7 +1764,7 @@ static void n_tty_set_termios(struct tty_struct *tty, 
struct ktermios *old)
 {
        struct n_tty_data *ldata = tty->disc_data;
 
-       if (!old || (old->c_lflag ^ tty->termios.c_lflag) & ICANON) {
+       if (!old || (old->c_lflag ^ tty->termios.c_lflag) & (ICANON | EXTPROC)) 
{
                bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
                ldata->line_start = ldata->read_tail;
                if (!L_ICANON(tty) || !read_cnt(ldata)) {
@@ -2427,7 +2427,7 @@ static int n_tty_ioctl(struct tty_struct *tty, struct 
file *file,
                return put_user(tty_chars_in_buffer(tty), (int __user *) arg);
        case TIOCINQ:
                down_write(&tty->termios_rwsem);
-               if (L_ICANON(tty))
+               if (L_ICANON(tty) && !L_EXTPROC(tty))
                        retval = inq_canon(ldata);
                else
                        retval = read_cnt(ldata);
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index c220c2c0893f..e99f1c5b1df6 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -446,7 +446,7 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string);
  *     Callers other than flush_to_ldisc() need to exclude the kworker
  *     from concurrent use of the line discipline, see paste_selection().
  *
- *     Returns the number of bytes not processed
+ *     Returns the number of bytes processed
  */
 int tty_ldisc_receive_buf(struct tty_ldisc *ld, unsigned char *p,
                          char *f, int count)
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index ba9b29bc441f..7c54a19b20e0 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -1002,7 +1002,7 @@ int usb_get_bos_descriptor(struct usb_device *dev)
                case USB_SSP_CAP_TYPE:
                        ssp_cap = (struct usb_ssp_cap_descriptor *)buffer;
                        ssac = (le32_to_cpu(ssp_cap->bmAttributes) &
-                               USB_SSP_SUBLINK_SPEED_ATTRIBS) + 1;
+                               USB_SSP_SUBLINK_SPEED_ATTRIBS);
                        if (length >= USB_DT_USB_SSP_CAP_SIZE(ssac))
                                dev->bos->ssp_cap = ssp_cap;
                        break;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 50010282c010..c05c4f877750 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -57,10 +57,11 @@ static const struct usb_device_id usb_quirk_list[] = {
        /* Microsoft LifeCam-VX700 v2.0 */
        { USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
 
-       /* Logitech HD Pro Webcams C920, C920-C and C930e */
+       /* Logitech HD Pro Webcams C920, C920-C, C925e and C930e */
        { USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
        { USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
        { USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
+       { USB_DEVICE(0x046d, 0x085b), .driver_info = USB_QUIRK_DELAY_INIT },
 
        /* Logitech ConferenceCam CC3000e */
        { USB_DEVICE(0x046d, 0x0847), .driver_info = USB_QUIRK_DELAY_INIT },
@@ -154,6 +155,9 @@ static const struct usb_device_id usb_quirk_list[] = {
        /* Genesys Logic hub, internally used by KY-688 USB 3.1 Type-C Hub */
        { USB_DEVICE(0x05e3, 0x0612), .driver_info = USB_QUIRK_NO_LPM },
 
+       /* ELSA MicroLink 56K */
+       { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_RESET_RESUME },
+
        /* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter 
*/
        { USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM },
 
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index c87ef38e7416..f6782a347cde 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -189,6 +189,9 @@ static void xhci_pci_quirks(struct device *dev, struct 
xhci_hcd *xhci)
                xhci->quirks |= XHCI_TRUST_TX_LENGTH;
                xhci->quirks |= XHCI_BROKEN_STREAMS;
        }
+       if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
+                       pdev->device == 0x0014)
+               xhci->quirks |= XHCI_TRUST_TX_LENGTH;
        if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
                        pdev->device == 0x0015)
                xhci->quirks |= XHCI_RESET_ON_RESUME;
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 3249f42b4b93..0c743e4cca1e 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1017,6 +1017,7 @@ static const struct usb_device_id id_table_combined[] = {
                .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
        { USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_BT_USB_PID) },
        { USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_WL_USB_PID) },
+       { USB_DEVICE(AIRBUS_DS_VID, AIRBUS_DS_P8GR) },
        { }                                     /* Terminating entry */
 };
 
diff --git a/drivers/usb/serial/ftdi_sio_ids.h 
b/drivers/usb/serial/ftdi_sio_ids.h
index f9d15bd62785..543d2801632b 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -913,6 +913,12 @@
 #define ICPDAS_I7561U_PID              0x0104
 #define ICPDAS_I7563U_PID              0x0105
 
+/*
+ * Airbus Defence and Space
+ */
+#define AIRBUS_DS_VID                  0x1e8e  /* Vendor ID */
+#define AIRBUS_DS_P8GR                 0x6001  /* Tetra P8GR */
+
 /*
  * RT Systems programming cables for various ham radios
  */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index ffa8ec917ff5..a818c43a02ec 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -236,6 +236,8 @@ static void option_instat_callback(struct urb *urb);
 /* These Quectel products use Qualcomm's vendor ID */
 #define QUECTEL_PRODUCT_UC20                   0x9003
 #define QUECTEL_PRODUCT_UC15                   0x9090
+/* These Yuga products use Qualcomm's vendor ID */
+#define YUGA_PRODUCT_CLM920_NC5                        0x9625
 
 #define QUECTEL_VENDOR_ID                      0x2c7c
 /* These Quectel products use Quectel's vendor ID */
@@ -283,6 +285,7 @@ static void option_instat_callback(struct urb *urb);
 #define TELIT_PRODUCT_LE922_USBCFG3            0x1043
 #define TELIT_PRODUCT_LE922_USBCFG5            0x1045
 #define TELIT_PRODUCT_ME910                    0x1100
+#define TELIT_PRODUCT_ME910_DUAL_MODEM         0x1101
 #define TELIT_PRODUCT_LE920                    0x1200
 #define TELIT_PRODUCT_LE910                    0x1201
 #define TELIT_PRODUCT_LE910_USBCFG4            0x1206
@@ -648,6 +651,11 @@ static const struct option_blacklist_info 
telit_me910_blacklist = {
        .reserved = BIT(1) | BIT(3),
 };
 
+static const struct option_blacklist_info telit_me910_dual_modem_blacklist = {
+       .sendsetup = BIT(0),
+       .reserved = BIT(3),
+};
+
 static const struct option_blacklist_info telit_le910_blacklist = {
        .sendsetup = BIT(0),
        .reserved = BIT(1) | BIT(2),
@@ -677,6 +685,10 @@ static const struct option_blacklist_info 
cinterion_rmnet2_blacklist = {
        .reserved = BIT(4) | BIT(5),
 };
 
+static const struct option_blacklist_info yuga_clm920_nc5_blacklist = {
+       .reserved = BIT(1) | BIT(4),
+};
+
 static const struct usb_device_id option_ids[] = {
        { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
        { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -1181,6 +1193,9 @@ static const struct usb_device_id option_ids[] = {
        { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)},
        { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20),
          .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+       /* Yuga products use Qualcomm vendor ID */
+       { USB_DEVICE(QUALCOMM_VENDOR_ID, YUGA_PRODUCT_CLM920_NC5),
+         .driver_info = (kernel_ulong_t)&yuga_clm920_nc5_blacklist },
        /* Quectel products using Quectel vendor ID */
        { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21),
          .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
@@ -1247,6 +1262,8 @@ static const struct usb_device_id option_ids[] = {
                .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_ME910_DUAL_MODEM),
+               .driver_info = 
(kernel_ulong_t)&telit_me910_dual_modem_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),
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 4516291df1b8..fb6dc16c754a 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -166,6 +166,8 @@ static const struct usb_device_id id_table[] = {
        {DEVICE_SWI(0x1199, 0x9079)},   /* Sierra Wireless EM74xx */
        {DEVICE_SWI(0x1199, 0x907a)},   /* Sierra Wireless EM74xx QDL */
        {DEVICE_SWI(0x1199, 0x907b)},   /* Sierra Wireless EM74xx */
+       {DEVICE_SWI(0x1199, 0x9090)},   /* Sierra Wireless EM7565 QDL */
+       {DEVICE_SWI(0x1199, 0x9091)},   /* Sierra Wireless EM7565 */
        {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 */
@@ -346,6 +348,7 @@ static int qcprobe(struct usb_serial *serial, const struct 
usb_device_id *id)
                        break;
                case 2:
                        dev_dbg(dev, "NMEA GPS interface found\n");
+                       sendsetup = true;
                        break;
                case 3:
                        dev_dbg(dev, "Modem port found\n");
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index c653ce533430..1886d8e4f14e 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -163,8 +163,7 @@ static void stub_shutdown_connection(struct usbip_device 
*ud)
         * step 1?
         */
        if (ud->tcp_socket) {
-               dev_dbg(&sdev->udev->dev, "shutdown tcp_socket %p\n",
-                       ud->tcp_socket);
+               dev_dbg(&sdev->udev->dev, "shutdown sockfd\n");
                kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR);
        }
 
diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
index af10f7b131a4..325b4c05acdd 100644
--- a/drivers/usb/usbip/stub_main.c
+++ b/drivers/usb/usbip/stub_main.c
@@ -252,11 +252,12 @@ void stub_device_cleanup_urbs(struct stub_device *sdev)
        struct stub_priv *priv;
        struct urb *urb;
 
-       dev_dbg(&sdev->udev->dev, "free sdev %p\n", sdev);
+       dev_dbg(&sdev->udev->dev, "Stub device cleaning up urbs\n");
 
        while ((priv = stub_priv_pop(sdev))) {
                urb = priv->urb;
-               dev_dbg(&sdev->udev->dev, "free urb %p\n", urb);
+               dev_dbg(&sdev->udev->dev, "free urb seqnum %lu\n",
+                       priv->seqnum);
                usb_kill_urb(urb);
 
                kmem_cache_free(stub_priv_cache, priv);
diff --git a/drivers/usb/usbip/stub_rx.c b/drivers/usb/usbip/stub_rx.c
index 283a9be77a22..5b807185f79e 100644
--- a/drivers/usb/usbip/stub_rx.c
+++ b/drivers/usb/usbip/stub_rx.c
@@ -225,9 +225,6 @@ static int stub_recv_cmd_unlink(struct stub_device *sdev,
                if (priv->seqnum != pdu->u.cmd_unlink.seqnum)
                        continue;
 
-               dev_info(&priv->urb->dev->dev, "unlink urb %p\n",
-                        priv->urb);
-
                /*
                 * This matched urb is not completed yet (i.e., be in
                 * flight in usb hcd hardware/driver). Now we are
@@ -266,8 +263,8 @@ static int stub_recv_cmd_unlink(struct stub_device *sdev,
                ret = usb_unlink_urb(priv->urb);
                if (ret != -EINPROGRESS)
                        dev_err(&priv->urb->dev->dev,
-                               "failed to unlink a urb %p, ret %d\n",
-                               priv->urb, ret);
+                               "failed to unlink a urb # %lu, ret %d\n",
+                               priv->seqnum, ret);
 
                return 0;
        }
diff --git a/drivers/usb/usbip/stub_tx.c b/drivers/usb/usbip/stub_tx.c
index 87ff94be4235..96aa375b80d9 100644
--- a/drivers/usb/usbip/stub_tx.c
+++ b/drivers/usb/usbip/stub_tx.c
@@ -102,7 +102,7 @@ void stub_complete(struct urb *urb)
        /* link a urb to the queue of tx. */
        spin_lock_irqsave(&sdev->priv_lock, flags);
        if (sdev->ud.tcp_socket == NULL) {
-               usbip_dbg_stub_tx("ignore urb for closed connection %p", urb);
+               usbip_dbg_stub_tx("ignore urb for closed connection\n");
                /* It will be freed in stub_device_cleanup_urbs(). */
        } else if (priv->unlinking) {
                stub_enqueue_ret_unlink(sdev, priv->seqnum, urb->status);
@@ -204,8 +204,8 @@ static int stub_send_ret_submit(struct stub_device *sdev)
 
                /* 1. setup usbip_header */
                setup_ret_submit_pdu(&pdu_header, urb);
-               usbip_dbg_stub_tx("setup txdata seqnum: %d urb: %p\n",
-                                 pdu_header.base.seqnum, urb);
+               usbip_dbg_stub_tx("setup txdata seqnum: %d\n",
+                                 pdu_header.base.seqnum);
                usbip_header_correct_endian(&pdu_header, 1);
 
                iov[iovnum].iov_base = &pdu_header;
diff --git a/drivers/usb/usbip/usbip_common.c b/drivers/usb/usbip/usbip_common.c
index 8b232290be6b..e24b24fa0f16 100644
--- a/drivers/usb/usbip/usbip_common.c
+++ b/drivers/usb/usbip/usbip_common.c
@@ -335,13 +335,10 @@ int usbip_recv(struct socket *sock, void *buf, int size)
        char *bp = buf;
        int osize = size;
 
-       usbip_dbg_xmit("enter\n");
-
-       if (!sock || !buf || !size) {
-               pr_err("invalid arg, sock %p buff %p size %d\n", sock, buf,
-                      size);
+       if (!sock || !buf || !size)
                return -EINVAL;
-       }
+
+       usbip_dbg_xmit("enter\n");
 
        do {
                sock->sk->sk_allocation = GFP_NOIO;
@@ -354,11 +351,8 @@ int usbip_recv(struct socket *sock, void *buf, int size)
                msg.msg_flags      = MSG_NOSIGNAL;
 
                result = kernel_recvmsg(sock, &msg, &iov, 1, size, MSG_WAITALL);
-               if (result <= 0) {
-                       pr_debug("receive sock %p buf %p size %u ret %d total 
%d\n",
-                                sock, buf, size, result, total);
+               if (result <= 0)
                        goto err;
-               }
 
                size -= result;
                buf += result;
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index d6dc165e924b..7f161b095176 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -506,9 +506,6 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb 
*urb,
        struct vhci_device *vdev;
        unsigned long flags;
 
-       usbip_dbg_vhci_hc("enter, usb_hcd %p urb %p mem_flags %d\n",
-                         hcd, urb, mem_flags);
-
        if (portnum > VHCI_HC_PORTS) {
                pr_err("invalid port number %d\n", portnum);
                return -ENODEV;
@@ -671,8 +668,6 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb 
*urb, int status)
        struct vhci_device *vdev;
        unsigned long flags;
 
-       pr_info("dequeue a urb %p\n", urb);
-
        spin_lock_irqsave(&vhci->lock, flags);
 
        priv = urb->hcpriv;
@@ -700,7 +695,6 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb 
*urb, int status)
                /* tcp connection is closed */
                spin_lock(&vdev->priv_lock);
 
-               pr_info("device %p seems to be disconnected\n", vdev);
                list_del(&priv->list);
                kfree(priv);
                urb->hcpriv = NULL;
@@ -712,8 +706,6 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb 
*urb, int status)
                 * vhci_rx will receive RET_UNLINK and give back the URB.
                 * Otherwise, we give back it here.
                 */
-               pr_info("gives back urb %p\n", urb);
-
                usb_hcd_unlink_urb_from_ep(hcd, urb);
 
                spin_unlock_irqrestore(&vhci->lock, flags);
@@ -741,8 +733,6 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb 
*urb, int status)
 
                unlink->unlink_seqnum = priv->seqnum;
 
-               pr_info("device %p seems to be still connected\n", vdev);
-
                /* send cmd_unlink and try to cancel the pending URB in the
                 * peer */
                list_add_tail(&unlink->list, &vdev->unlink_tx);
@@ -823,7 +813,7 @@ static void vhci_shutdown_connection(struct usbip_device 
*ud)
 
        /* need this? see stub_dev.c */
        if (ud->tcp_socket) {
-               pr_debug("shutdown tcp_socket %p\n", ud->tcp_socket);
+               pr_debug("shutdown tcp_socket\n");
                kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR);
        }
 
diff --git a/drivers/usb/usbip/vhci_rx.c b/drivers/usb/usbip/vhci_rx.c
index fc2d319e2360..5943deeec115 100644
--- a/drivers/usb/usbip/vhci_rx.c
+++ b/drivers/usb/usbip/vhci_rx.c
@@ -37,24 +37,23 @@ struct urb *pickup_urb_and_free_priv(struct vhci_device 
*vdev, __u32 seqnum)
                urb = priv->urb;
                status = urb->status;
 
-               usbip_dbg_vhci_rx("find urb %p vurb %p seqnum %u\n",
-                               urb, priv, seqnum);
+               usbip_dbg_vhci_rx("find urb seqnum %u\n", seqnum);
 
                switch (status) {
                case -ENOENT:
                        /* fall through */
                case -ECONNRESET:
-                       dev_info(&urb->dev->dev,
-                                "urb %p was unlinked %ssynchronuously.\n", urb,
-                                status == -ENOENT ? "" : "a");
+                       dev_dbg(&urb->dev->dev,
+                                "urb seq# %u was unlinked %ssynchronuously\n",
+                                seqnum, status == -ENOENT ? "" : "a");
                        break;
                case -EINPROGRESS:
                        /* no info output */
                        break;
                default:
-                       dev_info(&urb->dev->dev,
-                                "urb %p may be in a error, status %d\n", urb,
-                                status);
+                       dev_dbg(&urb->dev->dev,
+                                "urb seq# %u may be in a error, status %d\n",
+                                seqnum, status);
                }
 
                list_del(&priv->list);
@@ -80,8 +79,8 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
        spin_unlock_irqrestore(&vdev->priv_lock, flags);
 
        if (!urb) {
-               pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
-               pr_info("max seqnum %d\n",
+               pr_err("cannot find a urb of seqnum %u max seqnum %d\n",
+                       pdu->base.seqnum,
                        atomic_read(&vhci->seqnum));
                usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
                return;
@@ -104,7 +103,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
        if (usbip_dbg_flag_vhci_rx)
                usbip_dump_urb(urb);
 
-       usbip_dbg_vhci_rx("now giveback urb %p\n", urb);
+       usbip_dbg_vhci_rx("now giveback urb %u\n", pdu->base.seqnum);
 
        spin_lock_irqsave(&vhci->lock, flags);
        usb_hcd_unlink_urb_from_ep(vhci_to_hcd(vhci), urb);
@@ -170,7 +169,7 @@ static void vhci_recv_ret_unlink(struct vhci_device *vdev,
                pr_info("the urb (seqnum %d) was already given back\n",
                        pdu->base.seqnum);
        } else {
-               usbip_dbg_vhci_rx("now giveback urb %p\n", urb);
+               usbip_dbg_vhci_rx("now giveback urb %d\n", pdu->base.seqnum);
 
                /* If unlink is successful, status is -ECONNRESET */
                urb->status = pdu->u.ret_unlink.status;
diff --git a/drivers/usb/usbip/vhci_tx.c b/drivers/usb/usbip/vhci_tx.c
index 3e7878fe2fd4..a9a663a578b6 100644
--- a/drivers/usb/usbip/vhci_tx.c
+++ b/drivers/usb/usbip/vhci_tx.c
@@ -83,7 +83,8 @@ static int vhci_send_cmd_submit(struct vhci_device *vdev)
                memset(&msg, 0, sizeof(msg));
                memset(&iov, 0, sizeof(iov));
 
-               usbip_dbg_vhci_tx("setup txdata urb %p\n", urb);
+               usbip_dbg_vhci_tx("setup txdata urb seqnum %lu\n",
+                                 priv->seqnum);
 
                /* 1. setup usbip_header */
                setup_cmd_submit_pdu(&pdu_header, urb);
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 965cc5693a46..c9447a689522 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -48,7 +48,7 @@ enum cpuhp_state {
        CPUHP_ARM_SHMOBILE_SCU_PREPARE,
        CPUHP_SH_SH3X_PREPARE,
        CPUHP_BLK_MQ_PREPARE,
-       CPUHP_TIMERS_DEAD,
+       CPUHP_TIMERS_PREPARE,
        CPUHP_NOTF_ERR_INJ_PREPARE,
        CPUHP_MIPS_SOC_PREPARE,
        CPUHP_BRINGUP_CPU,
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index a0649973ee5b..b9dfca557a6c 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -246,7 +246,8 @@ struct ipv6_pinfo {
                                                 * 100: prefer care-of address
                                                 */
                                dontfrag:1,
-                               autoflowlabel:1;
+                               autoflowlabel:1,
+                               autoflowlabel_set:1;
        __u8                    min_hopcount;
        __u8                    tclass;
        __be32                  rcv_flowinfo;
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 6045d4d58065..25ed105bbcfb 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -143,7 +143,7 @@ enum {
        MLX5_CMD_OP_ALLOC_Q_COUNTER               = 0x771,
        MLX5_CMD_OP_DEALLOC_Q_COUNTER             = 0x772,
        MLX5_CMD_OP_QUERY_Q_COUNTER               = 0x773,
-       MLX5_CMD_OP_SET_RATE_LIMIT                = 0x780,
+       MLX5_CMD_OP_SET_PP_RATE_LIMIT             = 0x780,
        MLX5_CMD_OP_QUERY_RATE_LIMIT              = 0x781,
        MLX5_CMD_OP_ALLOC_PD                      = 0x800,
        MLX5_CMD_OP_DEALLOC_PD                    = 0x801,
@@ -6689,7 +6689,7 @@ struct mlx5_ifc_add_vxlan_udp_dport_in_bits {
        u8         vxlan_udp_port[0x10];
 };
 
-struct mlx5_ifc_set_rate_limit_out_bits {
+struct mlx5_ifc_set_pp_rate_limit_out_bits {
        u8         status[0x8];
        u8         reserved_at_8[0x18];
 
@@ -6698,7 +6698,7 @@ struct mlx5_ifc_set_rate_limit_out_bits {
        u8         reserved_at_40[0x40];
 };
 
-struct mlx5_ifc_set_rate_limit_in_bits {
+struct mlx5_ifc_set_pp_rate_limit_in_bits {
        u8         opcode[0x10];
        u8         reserved_at_10[0x10];
 
@@ -6711,6 +6711,8 @@ struct mlx5_ifc_set_rate_limit_in_bits {
        u8         reserved_at_60[0x20];
 
        u8         rate_limit[0x20];
+
+       u8         reserved_at_a0[0x160];
 };
 
 struct mlx5_ifc_access_register_out_bits {
diff --git a/include/linux/ptr_ring.h b/include/linux/ptr_ring.h
index b83507c0640c..e38f471a5402 100644
--- a/include/linux/ptr_ring.h
+++ b/include/linux/ptr_ring.h
@@ -99,12 +99,18 @@ static inline bool ptr_ring_full_bh(struct ptr_ring *r)
 
 /* Note: callers invoking this in a loop must use a compiler barrier,
  * for example cpu_relax(). Callers must hold producer_lock.
+ * Callers are responsible for making sure pointer that is being queued
+ * points to a valid data.
  */
 static inline int __ptr_ring_produce(struct ptr_ring *r, void *ptr)
 {
        if (unlikely(!r->size) || r->queue[r->producer])
                return -ENOSPC;
 
+       /* Make sure the pointer we are storing points to a valid data. */
+       /* Pairs with smp_read_barrier_depends in __ptr_ring_consume. */
+       smp_wmb();
+
        r->queue[r->producer++] = ptr;
        if (unlikely(r->producer >= r->size))
                r->producer = 0;
@@ -244,6 +250,9 @@ static inline void *__ptr_ring_consume(struct ptr_ring *r)
        if (ptr)
                __ptr_ring_discard_one(r);
 
+       /* Make sure anyone accessing data through the pointer is up to date. */
+       /* Pairs with smp_wmb in __ptr_ring_produce. */
+       smp_read_barrier_depends();
        return ptr;
 }
 
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 647532b0eb03..f50b717ce644 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -219,7 +219,8 @@ struct tcp_sock {
        } rack;
        u16     advmss;         /* Advertised MSS                       */
        u8      rate_app_limited:1,  /* rate_{delivered,interval_us} limited? */
-               unused:7;
+               is_sack_reneg:1,    /* in recovery from loss with SACK reneg? */
+               unused:6;
        u8      nonagle     : 4,/* Disable Nagle algorithm?             */
                thin_lto    : 1,/* Use linear timeouts for thin streams */
                thin_dupack : 1,/* Fast retransmit on first dupack      */
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 51d601f192d4..ec86e4e55ea3 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -274,9 +274,11 @@ unsigned long round_jiffies_up(unsigned long j);
 unsigned long round_jiffies_up_relative(unsigned long j);
 
 #ifdef CONFIG_HOTPLUG_CPU
+int timers_prepare_cpu(unsigned int cpu);
 int timers_dead_cpu(unsigned int cpu);
 #else
-#define timers_dead_cpu NULL
+#define timers_prepare_cpu     NULL
+#define timers_dead_cpu                NULL
 #endif
 
 #endif
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 4d6ec58a8d45..2edb150f1a4d 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -89,10 +89,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
 #endif
 #endif
 #ifdef CONFIG_DEBUG_TLBFLUSH
-#ifdef CONFIG_SMP
                NR_TLB_REMOTE_FLUSH,    /* cpu tried to flush others' tlbs */
                NR_TLB_REMOTE_FLUSH_RECEIVED,/* cpu received ipi for flush */
-#endif /* CONFIG_SMP */
                NR_TLB_LOCAL_FLUSH_ALL,
                NR_TLB_LOCAL_FLUSH_ONE,
 #endif /* CONFIG_DEBUG_TLBFLUSH */
diff --git a/include/net/ip.h b/include/net/ip.h
index 51c6b9786c46..0e3dcd5a134d 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -33,6 +33,8 @@
 #include <net/flow.h>
 #include <net/flow_dissector.h>
 
+#define IPV4_MIN_MTU           68                      /* RFC 791 */
+
 struct sock;
 
 struct inet_skb_parm {
diff --git a/include/net/tcp.h b/include/net/tcp.h
index fba4fc46871d..caf35e062639 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1001,7 +1001,7 @@ void tcp_rate_skb_sent(struct sock *sk, struct sk_buff 
*skb);
 void tcp_rate_skb_delivered(struct sock *sk, struct sk_buff *skb,
                            struct rate_sample *rs);
 void tcp_rate_gen(struct sock *sk, u32 delivered, u32 lost,
-                 struct skb_mstamp *now, struct rate_sample *rs);
+                 bool is_sack_reneg, struct skb_mstamp *now, struct 
rate_sample *rs);
 void tcp_rate_check_app_limited(struct sock *sk);
 
 /* These functions determine how the current flow behaves in respect of SACK
diff --git a/kernel/cpu.c b/kernel/cpu.c
index e1436ca4aed0..802eb3361a0a 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1309,9 +1309,9 @@ static struct cpuhp_step cpuhp_bp_states[] = {
         * before blk_mq_queue_reinit_notify() from notify_dead(),
         * otherwise a RCU stall occurs.
         */
-       [CPUHP_TIMERS_DEAD] = {
+       [CPUHP_TIMERS_PREPARE] = {
                .name                   = "timers:dead",
-               .startup.single         = NULL,
+               .startup.single         = timers_prepare_cpu,
                .teardown.single        = timers_dead_cpu,
        },
        /* Kicks the plugged cpu into life */
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 3bcb61b52f6c..dae1a45be504 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -663,6 +663,11 @@ static void tick_nohz_restart(struct tick_sched *ts, 
ktime_t now)
                tick_program_event(hrtimer_get_expires(&ts->sched_timer), 1);
 }
 
+static inline bool local_timer_softirq_pending(void)
+{
+       return local_softirq_pending() & TIMER_SOFTIRQ;
+}
+
 static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
                                         ktime_t now, int cpu)
 {
@@ -679,8 +684,18 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched 
*ts,
        } while (read_seqretry(&jiffies_lock, seq));
        ts->last_jiffies = basejiff;
 
-       if (rcu_needs_cpu(basemono, &next_rcu) ||
-           arch_needs_cpu() || irq_work_needs_cpu()) {
+       /*
+        * Keep the periodic tick, when RCU, architecture or irq_work
+        * requests it.
+        * Aside of that check whether the local timer softirq is
+        * pending. If so its a bad idea to call get_next_timer_interrupt()
+        * because there is an already expired timer, so it will request
+        * immeditate expiry, which rearms the hardware timer with a
+        * minimal delta which brings us back to this place
+        * immediately. Lather, rinse and repeat...
+        */
+       if (rcu_needs_cpu(basemono, &next_rcu) || arch_needs_cpu() ||
+           irq_work_needs_cpu() || local_timer_softirq_pending()) {
                next_tick = basemono + TICK_NSEC;
        } else {
                /*
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 7d670362891a..e872f7f05e8a 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -849,11 +849,10 @@ static inline struct timer_base *get_timer_cpu_base(u32 
tflags, u32 cpu)
        struct timer_base *base = per_cpu_ptr(&timer_bases[BASE_STD], cpu);
 
        /*
-        * If the timer is deferrable and nohz is active then we need to use
-        * the deferrable base.
+        * If the timer is deferrable and NO_HZ_COMMON is set then we need
+        * to use the deferrable base.
         */
-       if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && base->nohz_active &&
-           (tflags & TIMER_DEFERRABLE))
+       if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && (tflags & TIMER_DEFERRABLE))
                base = per_cpu_ptr(&timer_bases[BASE_DEF], cpu);
        return base;
 }
@@ -863,11 +862,10 @@ static inline struct timer_base 
*get_timer_this_cpu_base(u32 tflags)
        struct timer_base *base = this_cpu_ptr(&timer_bases[BASE_STD]);
 
        /*
-        * If the timer is deferrable and nohz is active then we need to use
-        * the deferrable base.
+        * If the timer is deferrable and NO_HZ_COMMON is set then we need
+        * to use the deferrable base.
         */
-       if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && base->nohz_active &&
-           (tflags & TIMER_DEFERRABLE))
+       if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && (tflags & TIMER_DEFERRABLE))
                base = this_cpu_ptr(&timer_bases[BASE_DEF]);
        return base;
 }
@@ -1021,8 +1019,6 @@ __mod_timer(struct timer_list *timer, unsigned long 
expires, bool pending_only)
        if (!ret && pending_only)
                goto out_unlock;
 
-       debug_activate(timer, expires);
-
        new_base = get_target_base(base, timer->flags);
 
        if (base != new_base) {
@@ -1046,6 +1042,8 @@ __mod_timer(struct timer_list *timer, unsigned long 
expires, bool pending_only)
                }
        }
 
+       debug_activate(timer, expires);
+
        timer->expires = expires;
        /*
         * If 'idx' was calculated above and the base time did not advance
@@ -1684,7 +1682,7 @@ static __latent_entropy void run_timer_softirq(struct 
softirq_action *h)
        base->must_forward_clk = false;
 
        __run_timers(base);
-       if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && base->nohz_active)
+       if (IS_ENABLED(CONFIG_NO_HZ_COMMON))
                __run_timers(this_cpu_ptr(&timer_bases[BASE_DEF]));
 }
 
@@ -1853,6 +1851,21 @@ static void migrate_timer_list(struct timer_base 
*new_base, struct hlist_head *h
        }
 }
 
+int timers_prepare_cpu(unsigned int cpu)
+{
+       struct timer_base *base;
+       int b;
+
+       for (b = 0; b < NR_BASES; b++) {
+               base = per_cpu_ptr(&timer_bases[b], cpu);
+               base->clk = jiffies;
+               base->next_expiry = base->clk + NEXT_TIMER_MAX_DELTA;
+               base->is_idle = false;
+               base->must_forward_clk = true;
+       }
+       return 0;
+}
+
 int timers_dead_cpu(unsigned int cpu)
 {
        struct timer_base *old_base;
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index f5c016e8fc88..3e1d11f4fe44 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -280,6 +280,8 @@ EXPORT_SYMBOL_GPL(ring_buffer_event_data);
 /* Missed count stored at end */
 #define RB_MISSED_STORED       (1 << 30)
 
+#define RB_MISSED_FLAGS                (RB_MISSED_EVENTS|RB_MISSED_STORED)
+
 struct buffer_data_page {
        u64              time_stamp;    /* page time stamp */
        local_t          commit;        /* write committed index */
@@ -331,7 +333,9 @@ static void rb_init_page(struct buffer_data_page *bpage)
  */
 size_t ring_buffer_page_len(void *page)
 {
-       return local_read(&((struct buffer_data_page *)page)->commit)
+       struct buffer_data_page *bpage = page;
+
+       return (local_read(&bpage->commit) & ~RB_MISSED_FLAGS)
                + BUF_PAGE_HDR_SIZE;
 }
 
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 4214cd960b8e..15b02645ce8b 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6181,7 +6181,7 @@ tracing_buffers_splice_read(struct file *file, loff_t 
*ppos,
                .spd_release    = buffer_spd_release,
        };
        struct buffer_ref *ref;
-       int entries, size, i;
+       int entries, i;
        ssize_t ret = 0;
 
 #ifdef CONFIG_TRACER_MAX_TRACE
@@ -6232,14 +6232,6 @@ tracing_buffers_splice_read(struct file *file, loff_t 
*ppos,
                        break;
                }
 
-               /*
-                * zero out any left over data, this is going to
-                * user land.
-                */
-               size = ring_buffer_page_len(ref->page);
-               if (size < PAGE_SIZE)
-                       memset(ref->page + size, 0, PAGE_SIZE - size);
-
                page = virt_to_page(ref->page);
 
                spd.pages[i] = page;
@@ -6963,6 +6955,7 @@ allocate_trace_buffer(struct trace_array *tr, struct 
trace_buffer *buf, int size
        buf->data = alloc_percpu(struct trace_array_cpu);
        if (!buf->data) {
                ring_buffer_free(buf->buffer);
+               buf->buffer = NULL;
                return -ENOMEM;
        }
 
@@ -6986,7 +6979,9 @@ static int allocate_trace_buffers(struct trace_array *tr, 
int size)
                                    allocate_snapshot ? size : 1);
        if (WARN_ON(ret)) {
                ring_buffer_free(tr->trace_buffer.buffer);
+               tr->trace_buffer.buffer = NULL;
                free_percpu(tr->trace_buffer.data);
+               tr->trace_buffer.data = NULL;
                return -ENOMEM;
        }
        tr->allocated_snapshot = allocate_snapshot;
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 5d4006e589cb..4f831225d34f 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1092,19 +1092,20 @@ static int br_dev_newlink(struct net *src_net, struct 
net_device *dev,
        struct net_bridge *br = netdev_priv(dev);
        int err;
 
+       err = register_netdevice(dev);
+       if (err)
+               return err;
+
        if (tb[IFLA_ADDRESS]) {
                spin_lock_bh(&br->lock);
                br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
                spin_unlock_bh(&br->lock);
        }
 
-       err = register_netdevice(dev);
-       if (err)
-               return err;
-
        err = br_changelink(dev, tb, data);
        if (err)
-               unregister_netdevice(dev);
+               br_dev_delete(dev, NULL);
+
        return err;
 }
 
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 7001da910c6b..b7efe2f19f83 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -263,7 +263,7 @@ struct net *get_net_ns_by_id(struct net *net, int id)
        spin_lock_irqsave(&net->nsid_lock, flags);
        peer = idr_find(&net->netns_ids, id);
        if (peer)
-               get_net(peer);
+               peer = maybe_get_net(peer);
        spin_unlock_irqrestore(&net->nsid_lock, flags);
        rcu_read_unlock();
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index aec5605944d3..a64515583bc1 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3823,7 +3823,7 @@ void skb_complete_tx_timestamp(struct sk_buff *skb,
        struct sock *sk = skb->sk;
 
        if (!skb_may_tx_timestamp(sk, false))
-               return;
+               goto err;
 
        /* Take a reference to prevent skb_orphan() from freeing the socket,
         * but only if the socket refcount is not zero.
@@ -3832,7 +3832,11 @@ void skb_complete_tx_timestamp(struct sk_buff *skb,
                *skb_hwtstamps(skb) = *hwtstamps;
                __skb_complete_tx_timestamp(skb, sk, SCM_TSTAMP_SND);
                sock_put(sk);
+               return;
        }
+
+err:
+       kfree_skb(skb);
 }
 EXPORT_SYMBOL_GPL(skb_complete_tx_timestamp);
 
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 062a67ca9a21..f08f984ebc56 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1380,7 +1380,7 @@ static void inetdev_changename(struct net_device *dev, 
struct in_device *in_dev)
 
 static bool inetdev_valid_mtu(unsigned int mtu)
 {
-       return mtu >= 68;
+       return mtu >= IPV4_MIN_MTU;
 }
 
 static void inetdev_send_gratuitous_arp(struct net_device *dev,
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 968d8e165e3d..ffae472e250a 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1253,14 +1253,19 @@ static int __net_init ip_fib_net_init(struct net *net)
 
 static void ip_fib_net_exit(struct net *net)
 {
-       unsigned int i;
+       int i;
 
        rtnl_lock();
 #ifdef CONFIG_IP_MULTIPLE_TABLES
        RCU_INIT_POINTER(net->ipv4.fib_main, NULL);
        RCU_INIT_POINTER(net->ipv4.fib_default, NULL);
 #endif
-       for (i = 0; i < FIB_TABLE_HASHSZ; i++) {
+       /* Destroy the tables in reverse order to guarantee that the
+        * local table, ID 255, is destroyed before the main table, ID
+        * 254. This is necessary as the local table may contain
+        * references to data contained in the main table.
+        */
+       for (i = FIB_TABLE_HASHSZ - 1; i >= 0; i--) {
                struct hlist_head *head = &net->ipv4.fib_table_hash[i];
                struct hlist_node *tmp;
                struct fib_table *tb;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 08575e3bd135..7bff0c65046f 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -89,6 +89,7 @@
 #include <linux/rtnetlink.h>
 #include <linux/times.h>
 #include <linux/pkt_sched.h>
+#include <linux/byteorder/generic.h>
 
 #include <net/net_namespace.h>
 #include <net/arp.h>
@@ -321,6 +322,23 @@ igmp_scount(struct ip_mc_list *pmc, int type, int 
gdeleted, int sdeleted)
        return scount;
 }
 
+/* source address selection per RFC 3376 section 4.2.13 */
+static __be32 igmpv3_get_srcaddr(struct net_device *dev,
+                                const struct flowi4 *fl4)
+{
+       struct in_device *in_dev = __in_dev_get_rcu(dev);
+
+       if (!in_dev)
+               return htonl(INADDR_ANY);
+
+       for_ifa(in_dev) {
+               if (inet_ifa_match(fl4->saddr, ifa))
+                       return fl4->saddr;
+       } endfor_ifa(in_dev);
+
+       return htonl(INADDR_ANY);
+}
+
 static struct sk_buff *igmpv3_newpack(struct net_device *dev, unsigned int mtu)
 {
        struct sk_buff *skb;
@@ -368,7 +386,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device 
*dev, unsigned int mtu)
        pip->frag_off = htons(IP_DF);
        pip->ttl      = 1;
        pip->daddr    = fl4.daddr;
-       pip->saddr    = fl4.saddr;
+       pip->saddr    = igmpv3_get_srcaddr(dev, &fl4);
        pip->protocol = IPPROTO_IGMP;
        pip->tot_len  = 0;      /* filled in later */
        ip_select_ident(net, skb, NULL);
@@ -404,16 +422,17 @@ static int grec_size(struct ip_mc_list *pmc, int type, 
int gdel, int sdel)
 }
 
 static struct sk_buff *add_grhead(struct sk_buff *skb, struct ip_mc_list *pmc,
-       int type, struct igmpv3_grec **ppgr)
+       int type, struct igmpv3_grec **ppgr, unsigned int mtu)
 {
        struct net_device *dev = pmc->interface->dev;
        struct igmpv3_report *pih;
        struct igmpv3_grec *pgr;
 
-       if (!skb)
-               skb = igmpv3_newpack(dev, dev->mtu);
-       if (!skb)
-               return NULL;
+       if (!skb) {
+               skb = igmpv3_newpack(dev, mtu);
+               if (!skb)
+                       return NULL;
+       }
        pgr = (struct igmpv3_grec *)skb_put(skb, sizeof(struct igmpv3_grec));
        pgr->grec_type = type;
        pgr->grec_auxwords = 0;
@@ -436,12 +455,17 @@ static struct sk_buff *add_grec(struct sk_buff *skb, 
struct ip_mc_list *pmc,
        struct igmpv3_grec *pgr = NULL;
        struct ip_sf_list *psf, *psf_next, *psf_prev, **psf_list;
        int scount, stotal, first, isquery, truncate;
+       unsigned int mtu;
 
        if (pmc->multiaddr == IGMP_ALL_HOSTS)
                return skb;
        if (ipv4_is_local_multicast(pmc->multiaddr) && 
!net->ipv4.sysctl_igmp_llm_reports)
                return skb;
 
+       mtu = READ_ONCE(dev->mtu);
+       if (mtu < IPV4_MIN_MTU)
+               return skb;
+
        isquery = type == IGMPV3_MODE_IS_INCLUDE ||
                  type == IGMPV3_MODE_IS_EXCLUDE;
        truncate = type == IGMPV3_MODE_IS_EXCLUDE ||
@@ -462,7 +486,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct 
ip_mc_list *pmc,
                    AVAILABLE(skb) < grec_size(pmc, type, gdeleted, sdeleted)) {
                        if (skb)
                                igmpv3_sendpack(skb);
-                       skb = igmpv3_newpack(dev, dev->mtu);
+                       skb = igmpv3_newpack(dev, mtu);
                }
        }
        first = 1;
@@ -498,12 +522,12 @@ static struct sk_buff *add_grec(struct sk_buff *skb, 
struct ip_mc_list *pmc,
                                pgr->grec_nsrcs = htons(scount);
                        if (skb)
                                igmpv3_sendpack(skb);
-                       skb = igmpv3_newpack(dev, dev->mtu);
+                       skb = igmpv3_newpack(dev, mtu);
                        first = 1;
                        scount = 0;
                }
                if (first) {
-                       skb = add_grhead(skb, pmc, type, &pgr);
+                       skb = add_grhead(skb, pmc, type, &pgr, mtu);
                        first = 0;
                }
                if (!skb)
@@ -538,7 +562,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct 
ip_mc_list *pmc,
                                igmpv3_sendpack(skb);
                                skb = NULL; /* add_grhead will get a new one */
                        }
-                       skb = add_grhead(skb, pmc, type, &pgr);
+                       skb = add_grhead(skb, pmc, type, &pgr, mtu);
                }
        }
        if (pgr)
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index bd7f1836bb70..96536a0d6e2d 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -346,8 +346,8 @@ static int ip_tunnel_bind_dev(struct net_device *dev)
        dev->needed_headroom = t_hlen + hlen;
        mtu -= (dev->hard_header_len + t_hlen);
 
-       if (mtu < 68)
-               mtu = 68;
+       if (mtu < IPV4_MIN_MTU)
+               mtu = IPV4_MIN_MTU;
 
        return mtu;
 }
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 9879b73d5565..59d8770055ed 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -502,11 +502,16 @@ static int raw_sendmsg(struct sock *sk, struct msghdr 
*msg, size_t len)
        int err;
        struct ip_options_data opt_copy;
        struct raw_frag_vec rfv;
+       int hdrincl;
 
        err = -EMSGSIZE;
        if (len > 0xFFFF)
                goto out;
 
+       /* hdrincl should be READ_ONCE(inet->hdrincl)
+        * but READ_ONCE() doesn't work with bit fields
+        */
+       hdrincl = inet->hdrincl;
        /*
         *      Check the flags.
         */
@@ -582,7 +587,7 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, 
size_t len)
                /* Linux does not mangle headers on raw sockets,
                 * so that IP options + IP_HDRINCL is non-sense.
                 */
-               if (inet->hdrincl)
+               if (hdrincl)
                        goto done;
                if (ipc.opt->opt.srr) {
                        if (!daddr)
@@ -604,12 +609,12 @@ static int raw_sendmsg(struct sock *sk, struct msghdr 
*msg, size_t len)
 
        flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos,
                           RT_SCOPE_UNIVERSE,
-                          inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol,
+                          hdrincl ? IPPROTO_RAW : sk->sk_protocol,
                           inet_sk_flowi_flags(sk) |
-                           (inet->hdrincl ? FLOWI_FLAG_KNOWN_NH : 0),
+                           (hdrincl ? FLOWI_FLAG_KNOWN_NH : 0),
                           daddr, saddr, 0, 0);
 
-       if (!inet->hdrincl) {
+       if (!hdrincl) {
                rfv.msg = msg;
                rfv.hlen = 0;
 
@@ -634,7 +639,7 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, 
size_t len)
                goto do_confirm;
 back_from_confirm:
 
-       if (inet->hdrincl)
+       if (hdrincl)
                err = raw_send_hdrinc(sk, &fl4, msg, len,
                                      &rt, msg->msg_flags, &ipc.sockc);
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index dd33c785ce16..05d2bde00864 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2297,6 +2297,7 @@ int tcp_disconnect(struct sock *sk, int flags)
        tp->snd_cwnd_cnt = 0;
        tp->window_clamp = 0;
        tcp_set_ca_state(sk, TCP_CA_Open);
+       tp->is_sack_reneg = 0;
        tcp_clear_retrans(tp);
        inet_csk_delack_init(sk);
        /* Initialize rcv_mss to TCP_MIN_MSS to avoid division by 0
diff --git a/net/ipv4/tcp_bbr.c b/net/ipv4/tcp_bbr.c
index cb8db347c680..97f9cac98348 100644
--- a/net/ipv4/tcp_bbr.c
+++ b/net/ipv4/tcp_bbr.c
@@ -81,7 +81,8 @@ struct bbr {
        u32     lt_last_lost;        /* LT intvl start: tp->lost */
        u32     pacing_gain:10, /* current gain for setting pacing rate */
                cwnd_gain:10,   /* current gain for setting cwnd */
-               full_bw_cnt:3,  /* number of rounds without large bw gains */
+               full_bw_reached:1,   /* reached full bw in Startup? */
+               full_bw_cnt:2,  /* number of rounds without large bw gains */
                cycle_idx:3,    /* current index in pacing_gain cycle array */
                has_seen_rtt:1, /* have we seen an RTT sample yet? */
                unused_b:5;
@@ -151,7 +152,7 @@ static bool bbr_full_bw_reached(const struct sock *sk)
 {
        const struct bbr *bbr = inet_csk_ca(sk);
 
-       return bbr->full_bw_cnt >= bbr_full_bw_cnt;
+       return bbr->full_bw_reached;
 }
 
 /* Return the windowed max recent bandwidth sample, in pkts/uS << BW_SCALE. */
@@ -688,6 +689,7 @@ static void bbr_check_full_bw_reached(struct sock *sk,
                return;
        }
        ++bbr->full_bw_cnt;
+       bbr->full_bw_reached = bbr->full_bw_cnt >= bbr_full_bw_cnt;
 }
 
 /* If pipe is probably full, drain the queue and then enter steady-state. */
@@ -821,6 +823,7 @@ static void bbr_init(struct sock *sk)
        bbr->restore_cwnd = 0;
        bbr->round_start = 0;
        bbr->idle_restart = 0;
+       bbr->full_bw_reached = 0;
        bbr->full_bw = 0;
        bbr->full_bw_cnt = 0;
        bbr->cycle_mstamp.v64 = 0;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 05255a286888..2f107e46355c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1966,6 +1966,8 @@ void tcp_enter_loss(struct sock *sk)
                NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPSACKRENEGING);
                tp->sacked_out = 0;
                tp->fackets_out = 0;
+               /* Mark SACK reneging until we recover from this loss event. */
+               tp->is_sack_reneg = 1;
        }
        tcp_clear_all_retrans_hints(tp);
 
@@ -2463,6 +2465,7 @@ static bool tcp_try_undo_recovery(struct sock *sk)
                return true;
        }
        tcp_set_ca_state(sk, TCP_CA_Open);
+       tp->is_sack_reneg = 0;
        return false;
 }
 
@@ -2494,8 +2497,10 @@ static bool tcp_try_undo_loss(struct sock *sk, bool 
frto_undo)
                        NET_INC_STATS(sock_net(sk),
                                        LINUX_MIB_TCPSPURIOUSRTOS);
                inet_csk(sk)->icsk_retransmits = 0;
-               if (frto_undo || tcp_is_sack(tp))
+               if (frto_undo || tcp_is_sack(tp)) {
                        tcp_set_ca_state(sk, TCP_CA_Open);
+                       tp->is_sack_reneg = 0;
+               }
                return true;
        }
        return false;
@@ -3589,6 +3594,7 @@ static int tcp_ack(struct sock *sk, const struct sk_buff 
*skb, int flag)
        struct tcp_sacktag_state sack_state;
        struct rate_sample rs = { .prior_delivered = 0 };
        u32 prior_snd_una = tp->snd_una;
+       bool is_sack_reneg = tp->is_sack_reneg;
        u32 ack_seq = TCP_SKB_CB(skb)->seq;
        u32 ack = TCP_SKB_CB(skb)->ack_seq;
        bool is_dupack = false;
@@ -3711,7 +3717,7 @@ static int tcp_ack(struct sock *sk, const struct sk_buff 
*skb, int flag)
                tcp_schedule_loss_probe(sk);
        delivered = tp->delivered - delivered;  /* freshly ACKed or SACKed */
        lost = tp->lost - lost;                 /* freshly marked lost */
-       tcp_rate_gen(sk, delivered, lost, &now, &rs);
+       tcp_rate_gen(sk, delivered, lost, is_sack_reneg, &now, &rs);
        tcp_cong_control(sk, ack, delivered, flag, &rs);
        tcp_xmit_recovery(sk, rexmit);
        return 1;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index d577ec07a0d8..b3960738464e 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -828,7 +828,7 @@ static void tcp_v4_reqsk_send_ack(const struct sock *sk, 
struct sk_buff *skb,
                        tcp_time_stamp,
                        req->ts_recent,
                        0,
-                       tcp_md5_do_lookup(sk, (union tcp_md5_addr 
*)&ip_hdr(skb)->daddr,
+                       tcp_md5_do_lookup(sk, (union tcp_md5_addr 
*)&ip_hdr(skb)->saddr,
                                          AF_INET),
                        inet_rsk(req)->no_srccheck ? IP_REPLY_ARG_NOSRCCHECK : 
0,
                        ip_hdr(skb)->tos);
diff --git a/net/ipv4/tcp_rate.c b/net/ipv4/tcp_rate.c
index 9be1581a5a08..18309f58ab8d 100644
--- a/net/ipv4/tcp_rate.c
+++ b/net/ipv4/tcp_rate.c
@@ -106,7 +106,7 @@ void tcp_rate_skb_delivered(struct sock *sk, struct sk_buff 
*skb,
 
 /* Update the connection delivery information and generate a rate sample. */
 void tcp_rate_gen(struct sock *sk, u32 delivered, u32 lost,
-                 struct skb_mstamp *now, struct rate_sample *rs)
+                 bool is_sack_reneg, struct skb_mstamp *now, struct 
rate_sample *rs)
 {
        struct tcp_sock *tp = tcp_sk(sk);
        u32 snd_us, ack_us;
@@ -124,8 +124,12 @@ void tcp_rate_gen(struct sock *sk, u32 delivered, u32 lost,
 
        rs->acked_sacked = delivered;   /* freshly ACKed or SACKed */
        rs->losses = lost;              /* freshly marked lost */
-       /* Return an invalid sample if no timing information is available. */
-       if (!rs->prior_mstamp.v64) {
+       /* Return an invalid sample if no timing information is available or
+        * in recovery from loss with SACK reneging. Rate samples taken during
+        * a SACK reneging event may overestimate bw by including packets that
+        * were SACKed before the reneg.
+        */
+       if (!rs->prior_mstamp.v64 || is_sack_reneg) {
                rs->delivered = -1;
                rs->interval_us = -1;
                return;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 8285a1c108c9..5cad76f87536 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -209,7 +209,6 @@ static int inet6_create(struct net *net, struct socket 
*sock, int protocol,
        np->mcast_hops  = IPV6_DEFAULT_MCASTHOPS;
        np->mc_loop     = 1;
        np->pmtudisc    = IPV6_PMTUDISC_WANT;
-       np->autoflowlabel = ip6_default_np_autolabel(sock_net(sk));
        sk->sk_ipv6only = net->ipv6.sysctl.bindv6only;
 
        /* Init the ipv4 part of the socket since we can have sockets
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 6e01c9a8dfd3..506efba33a89 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -156,6 +156,14 @@ int ip6_output(struct net *net, struct sock *sk, struct 
sk_buff *skb)
                            !(IP6CB(skb)->flags & IP6SKB_REROUTED));
 }
 
+static bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np)
+{
+       if (!np->autoflowlabel_set)
+               return ip6_default_np_autolabel(net);
+       else
+               return np->autoflowlabel;
+}
+
 /*
  * xmit an sk_buff (used by TCP, SCTP and DCCP)
  * Note : socket lock is not held for SYNACK packets, but might be modified
@@ -219,7 +227,7 @@ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, 
struct flowi6 *fl6,
                hlimit = ip6_dst_hoplimit(dst);
 
        ip6_flow_hdr(hdr, tclass, ip6_make_flowlabel(net, skb, fl6->flowlabel,
-                                                    np->autoflowlabel, fl6));
+                               ip6_autoflowlabel(net, np), fl6));
 
        hdr->payload_len = htons(seg_len);
        hdr->nexthdr = proto;
@@ -1691,7 +1699,7 @@ struct sk_buff *__ip6_make_skb(struct sock *sk,
 
        ip6_flow_hdr(hdr, v6_cork->tclass,
                     ip6_make_flowlabel(net, skb, fl6->flowlabel,
-                                       np->autoflowlabel, fl6));
+                                       ip6_autoflowlabel(net, np), fl6));
        hdr->hop_limit = v6_cork->hop_limit;
        hdr->nexthdr = proto;
        hdr->saddr = fl6->saddr;
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 12b2fd512f32..11d22d642488 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -911,7 +911,7 @@ static int ipxip6_rcv(struct sk_buff *skb, u8 ipproto,
                if (t->parms.collect_md) {
                        tun_dst = ipv6_tun_rx_dst(skb, 0, 0, 0);
                        if (!tun_dst)
-                               return 0;
+                               goto drop;
                }
                ret = __ip6_tnl_rcv(t, skb, tpi, tun_dst, dscp_ecn_decapsulate,
                                    log_ecn_error);
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 38bee173dc2b..6e3871c7f8f7 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -874,6 +874,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, 
int optname,
                break;
        case IPV6_AUTOFLOWLABEL:
                np->autoflowlabel = valbool;
+               np->autoflowlabel_set = 1;
                retv = 0;
                break;
        }
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 1bdc703cb966..ca8fac6e5a09 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1682,16 +1682,16 @@ static int grec_size(struct ifmcaddr6 *pmc, int type, 
int gdel, int sdel)
 }
 
 static struct sk_buff *add_grhead(struct sk_buff *skb, struct ifmcaddr6 *pmc,
-       int type, struct mld2_grec **ppgr)
+       int type, struct mld2_grec **ppgr, unsigned int mtu)
 {
-       struct net_device *dev = pmc->idev->dev;
        struct mld2_report *pmr;
        struct mld2_grec *pgr;
 
-       if (!skb)
-               skb = mld_newpack(pmc->idev, dev->mtu);
-       if (!skb)
-               return NULL;
+       if (!skb) {
+               skb = mld_newpack(pmc->idev, mtu);
+               if (!skb)
+                       return NULL;
+       }
        pgr = (struct mld2_grec *)skb_put(skb, sizeof(struct mld2_grec));
        pgr->grec_type = type;
        pgr->grec_auxwords = 0;
@@ -1714,10 +1714,15 @@ static struct sk_buff *add_grec(struct sk_buff *skb, 
struct ifmcaddr6 *pmc,
        struct mld2_grec *pgr = NULL;
        struct ip6_sf_list *psf, *psf_next, *psf_prev, **psf_list;
        int scount, stotal, first, isquery, truncate;
+       unsigned int mtu;
 
        if (pmc->mca_flags & MAF_NOREPORT)
                return skb;
 
+       mtu = READ_ONCE(dev->mtu);
+       if (mtu < IPV6_MIN_MTU)
+               return skb;
+
        isquery = type == MLD2_MODE_IS_INCLUDE ||
                  type == MLD2_MODE_IS_EXCLUDE;
        truncate = type == MLD2_MODE_IS_EXCLUDE ||
@@ -1738,7 +1743,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, 
struct ifmcaddr6 *pmc,
                    AVAILABLE(skb) < grec_size(pmc, type, gdeleted, sdeleted)) {
                        if (skb)
                                mld_sendpack(skb);
-                       skb = mld_newpack(idev, dev->mtu);
+                       skb = mld_newpack(idev, mtu);
                }
        }
        first = 1;
@@ -1774,12 +1779,12 @@ static struct sk_buff *add_grec(struct sk_buff *skb, 
struct ifmcaddr6 *pmc,
                                pgr->grec_nsrcs = htons(scount);
                        if (skb)
                                mld_sendpack(skb);
-                       skb = mld_newpack(idev, dev->mtu);
+                       skb = mld_newpack(idev, mtu);
                        first = 1;
                        scount = 0;
                }
                if (first) {
-                       skb = add_grhead(skb, pmc, type, &pgr);
+                       skb = add_grhead(skb, pmc, type, &pgr, mtu);
                        first = 0;
                }
                if (!skb)
@@ -1814,7 +1819,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, 
struct ifmcaddr6 *pmc,
                                mld_sendpack(skb);
                                skb = NULL; /* add_grhead will get a new one */
                        }
-                       skb = add_grhead(skb, pmc, type, &pgr);
+                       skb = add_grhead(skb, pmc, type, &pgr, mtu);
                }
        }
        if (pgr)
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 7ac2365aa6fb..eb624547382f 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -962,7 +962,7 @@ static void tcp_v6_reqsk_send_ack(const struct sock *sk, 
struct sk_buff *skb,
                        tcp_rsk(req)->rcv_nxt,
                        req->rsk_rcv_wnd >> inet_rsk(req)->rcv_wscale,
                        tcp_time_stamp, req->ts_recent, sk->sk_bound_dev_if,
-                       tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr),
+                       tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->saddr),
                        0, 0);
 }
 
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 1ff497bd9c20..e1c123d4cdda 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -261,6 +261,9 @@ static int __netlink_deliver_tap_skb(struct sk_buff *skb,
        struct sock *sk = skb->sk;
        int ret = -ENOMEM;
 
+       if (!net_eq(dev_net(dev), sock_net(sk)))
+               return 0;
+
        dev_hold(dev);
 
        if (is_vmalloc_addr(skb->head))
diff --git a/net/rds/send.c b/net/rds/send.c
index ad247dc71ebb..ef53d164e146 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -1006,6 +1006,9 @@ static int rds_rdma_bytes(struct msghdr *msg, size_t 
*rdma_bytes)
                        continue;
 
                if (cmsg->cmsg_type == RDS_CMSG_RDMA_ARGS) {
+                       if (cmsg->cmsg_len <
+                           CMSG_LEN(sizeof(struct rds_rdma_args)))
+                               return -EINVAL;
                        args = CMSG_DATA(cmsg);
                        *rdma_bytes += args->remote_vec.bytes;
                }
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index c2ab864da50d..7181ce6c62bf 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4246,7 +4246,7 @@ static int sctp_init_sock(struct sock *sk)
        SCTP_DBG_OBJCNT_INC(sock);
 
        local_bh_disable();
-       percpu_counter_inc(&sctp_sockets_allocated);
+       sk_sockets_allocated_inc(sk);
        sock_prot_inuse_add(net, sk->sk_prot, 1);
 
        /* Nothing can fail after this block, otherwise
@@ -4290,7 +4290,7 @@ static void sctp_destroy_sock(struct sock *sk)
        }
        sctp_endpoint_free(sp->ep);
        local_bh_disable();
-       percpu_counter_dec(&sctp_sockets_allocated);
+       sk_sockets_allocated_dec(sk);
        sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
        local_bh_enable();
 }
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c
index c9af022676c2..47c3e97c3136 100644
--- a/sound/hda/hdac_i915.c
+++ b/sound/hda/hdac_i915.c
@@ -319,7 +319,7 @@ static int hdac_component_master_match(struct device *dev, 
void *data)
  */
 int snd_hdac_i915_register_notifier(const struct 
i915_audio_component_audio_ops *aops)
 {
-       if (WARN_ON(!hdac_acomp))
+       if (!hdac_acomp)
                return -ENODEV;
 
        hdac_acomp->audio_ops = aops;
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index ba40596b9d92..4ef3b0067876 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5971,6 +5971,11 @@ static const struct snd_hda_pin_quirk 
alc269_pin_fixup_tbl[] = {
        SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
                {0x1b, 0x01011020},
                {0x21, 0x02211010}),
+       SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+               {0x12, 0x90a60130},
+               {0x14, 0x90170110},
+               {0x1b, 0x01011020},
+               {0x21, 0x0221101f}),
        SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
                {0x12, 0x90a60160},
                {0x14, 0x90170120},
diff --git a/sound/soc/codecs/da7218.c b/sound/soc/codecs/da7218.c
index c69e97654fc6..f88632426c0a 100644
--- a/sound/soc/codecs/da7218.c
+++ b/sound/soc/codecs/da7218.c
@@ -2519,7 +2519,7 @@ static struct da7218_pdata *da7218_of_to_pdata(struct 
snd_soc_codec *codec)
        }
 
        if (da7218->dev_id == DA7218_DEV_ID) {
-               hpldet_np = of_find_node_by_name(np, "da7218_hpldet");
+               hpldet_np = of_get_child_by_name(np, "da7218_hpldet");
                if (!hpldet_np)
                        return pdata;
 
diff --git a/sound/soc/codecs/tlv320aic31xx.h b/sound/soc/codecs/tlv320aic31xx.h
index 5acd5b69fb83..f9b6c5a81b47 100644
--- a/sound/soc/codecs/tlv320aic31xx.h
+++ b/sound/soc/codecs/tlv320aic31xx.h
@@ -115,7 +115,7 @@ struct aic31xx_pdata {
 /* INT2 interrupt control */
 #define AIC31XX_INT2CTRL       AIC31XX_REG(0, 49)
 /* GPIO1 control */
-#define AIC31XX_GPIO1          AIC31XX_REG(0, 50)
+#define AIC31XX_GPIO1          AIC31XX_REG(0, 51)
 
 #define AIC31XX_DACPRB         AIC31XX_REG(0, 60)
 /* ADC Instruction Set Register */
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index a2104d68169d..26fd6a664b9b 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -232,7 +232,7 @@ static struct twl4030_codec_data *twl4030_get_pdata(struct 
snd_soc_codec *codec)
        struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev);
        struct device_node *twl4030_codec_node = NULL;
 
-       twl4030_codec_node = of_find_node_by_name(codec->dev->parent->of_node,
+       twl4030_codec_node = of_get_child_by_name(codec->dev->parent->of_node,
                                                  "codec");
 
        if (!pdata && twl4030_codec_node) {
@@ -241,9 +241,11 @@ static struct twl4030_codec_data *twl4030_get_pdata(struct 
snd_soc_codec *codec)
                                     GFP_KERNEL);
                if (!pdata) {
                        dev_err(codec->dev, "Can not allocate memory\n");
+                       of_node_put(twl4030_codec_node);
                        return NULL;
                }
                twl4030_setup_pdata_of(pdata, twl4030_codec_node);
+               of_node_put(twl4030_codec_node);
        }
 
        return pdata;
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 757af795cebd..c03c9da076c2 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1465,7 +1465,7 @@ static int wm_adsp_load(struct wm_adsp *dsp)
                 le64_to_cpu(footer->timestamp));
 
        while (pos < firmware->size &&
-              pos - firmware->size > sizeof(*region)) {
+              sizeof(*region) < firmware->size - pos) {
                region = (void *)&(firmware->data[pos]);
                region_name = "Unknown";
                reg = 0;
@@ -1526,8 +1526,8 @@ static int wm_adsp_load(struct wm_adsp *dsp)
                         regions, le32_to_cpu(region->len), offset,
                         region_name);
 
-               if ((pos + le32_to_cpu(region->len) + sizeof(*region)) >
-                   firmware->size) {
+               if (le32_to_cpu(region->len) >
+                   firmware->size - pos - sizeof(*region)) {
                        adsp_err(dsp,
                                 "%s.%d: %s region len %d bytes exceeds file 
length %zu\n",
                                 file, regions, region_name,
@@ -1992,7 +1992,7 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
 
        blocks = 0;
        while (pos < firmware->size &&
-              pos - firmware->size > sizeof(*blk)) {
+              sizeof(*blk) < firmware->size - pos) {
                blk = (void *)(&firmware->data[pos]);
 
                type = le16_to_cpu(blk->type);
@@ -2066,8 +2066,8 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
                }
 
                if (reg) {
-                       if ((pos + le32_to_cpu(blk->len) + sizeof(*blk)) >
-                           firmware->size) {
+                       if (le32_to_cpu(blk->len) >
+                           firmware->size - pos - sizeof(*blk)) {
                                adsp_err(dsp,
                                         "%s.%d: %s region len %d bytes exceeds 
file length %zu\n",
                                         file, blocks, region_name,
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index fde08660b63b..1c03490e1182 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1467,12 +1467,6 @@ static int fsl_ssi_probe(struct platform_device *pdev)
                                sizeof(fsl_ssi_ac97_dai));
 
                fsl_ac97_data = ssi_private;
-
-               ret = snd_soc_set_ac97_ops_of_reset(&fsl_ssi_ac97_ops, pdev);
-               if (ret) {
-                       dev_err(&pdev->dev, "could not set AC'97 ops\n");
-                       return ret;
-               }
        } else {
                /* Initialize this copy of the CPU DAI driver structure */
                memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_dai_template,
@@ -1583,6 +1577,14 @@ static int fsl_ssi_probe(struct platform_device *pdev)
                        return ret;
        }
 
+       if (fsl_ssi_is_ac97(ssi_private)) {
+               ret = snd_soc_set_ac97_ops_of_reset(&fsl_ssi_ac97_ops, pdev);
+               if (ret) {
+                       dev_err(&pdev->dev, "could not set AC'97 ops\n");
+                       goto error_ac97_ops;
+               }
+       }
+
        ret = devm_snd_soc_register_component(&pdev->dev, &fsl_ssi_component,
                                              &ssi_private->cpu_dai_drv, 1);
        if (ret) {
@@ -1666,6 +1668,10 @@ static int fsl_ssi_probe(struct platform_device *pdev)
        fsl_ssi_debugfs_remove(&ssi_private->dbg_stats);
 
 error_asoc_register:
+       if (fsl_ssi_is_ac97(ssi_private))
+               snd_soc_set_ac97_ops(NULL);
+
+error_ac97_ops:
        if (ssi_private->soc->imx)
                fsl_ssi_imx_clean(pdev, ssi_private);
 
diff --git a/tools/objtool/arch/x86/insn/x86-opcode-map.txt 
b/tools/objtool/arch/x86/insn/x86-opcode-map.txt
index 767be7c76034..1754e094bc28 100644
--- a/tools/objtool/arch/x86/insn/x86-opcode-map.txt
+++ b/tools/objtool/arch/x86/insn/x86-opcode-map.txt
@@ -896,7 +896,7 @@ EndTable
 
 GrpTable: Grp3_1
 0: TEST Eb,Ib
-1:
+1: TEST Eb,Ib
 2: NOT Eb
 3: NEG Eb
 4: MUL AL,Eb
diff --git a/tools/usb/usbip/src/utils.c b/tools/usb/usbip/src/utils.c
index 2b3d6d235015..3d7b42e77299 100644
--- a/tools/usb/usbip/src/utils.c
+++ b/tools/usb/usbip/src/utils.c
@@ -30,6 +30,7 @@ int modify_match_busid(char *busid, int add)
        char command[SYSFS_BUS_ID_SIZE + 4];
        char match_busid_attr_path[SYSFS_PATH_MAX];
        int rc;
+       int cmd_size;
 
        snprintf(match_busid_attr_path, sizeof(match_busid_attr_path),
                 "%s/%s/%s/%s/%s/%s", SYSFS_MNT_PATH, SYSFS_BUS_NAME,
@@ -37,12 +38,14 @@ int modify_match_busid(char *busid, int add)
                 attr_name);
 
        if (add)
-               snprintf(command, SYSFS_BUS_ID_SIZE + 4, "add %s", busid);
+               cmd_size = snprintf(command, SYSFS_BUS_ID_SIZE + 4, "add %s",
+                                   busid);
        else
-               snprintf(command, SYSFS_BUS_ID_SIZE + 4, "del %s", busid);
+               cmd_size = snprintf(command, SYSFS_BUS_ID_SIZE + 4, "del %s",
+                                   busid);
 
        rc = write_sysfs_attribute(match_busid_attr_path, command,
-                                  sizeof(command));
+                                  cmd_size);
        if (rc < 0) {
                dbg("failed to write match_busid: %s", strerror(errno));
                return -1;

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