Re: [000/118] 3.2.45-rc1 review

Ben Hutchings
2013-05-10T14:41:11Z

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This is the combined patch for 3.2.45-rc1 relative to 3.2.44.

Ben.

--
Ben Hutchings
For every action, there is an equal and opposite criticism. - Harrison

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diff --git a/Makefile b/Makefile
index 566750c..1d0cfbb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 2
-SUBLEVEL = 44
-EXTRAVERSION =
+SUBLEVEL = 45
+EXTRAVERSION = -rc1
NAME = Saber-toothed Squirrel

# *DOCUMENTATION*
diff --git a/arch/arm/mach-u300/include/mach/u300-regs.h b/arch/arm/mach-u300/include/mach/u300-regs.h
index 035fdc9..a8b71f2 100644
--- a/arch/arm/mach-u300/include/mach/u300-regs.h
+++ b/arch/arm/mach-u300/include/mach/u300-regs.h
@@ -102,7 +102,7 @@

#ifdef CONFIG_MACH_U300_BS335
/* Fast UART1 on U335 only */
-#define U300_UART1_BASE (U300_SLOW_PER_PHYS_BASE+0x7000)
+#define U300_UART1_BASE (U300_FAST_PER_PHYS_BASE+0x7000)
#endif

/*
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 21ab376..1bd14d5 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -107,16 +107,15 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
return -EFAULT;

{
- register unsigned long r8 __asm ("r8");
+ register unsigned long r8 __asm ("r8") = 0;
unsigned long prev;
__asm__ __volatile__(
" mf;; \n"
- " mov %0=r0 \n"
" mov ar.ccv=%4;; \n"
"[1:] cmpxchg4.acq %1=[%2],%3,ar.ccv \n"
" .xdata4 \"__ex_table\", 1b-., 2f-. \n"
"[2:]"
- : "=r" (r8), "=r" (prev)
+ : "+r" (r8), "=&r" (prev)
: "r" (uaddr), "r" (newval),
"rO" ((long) (unsigned) oldval)
: "memory");
diff --git a/arch/ia64/include/asm/mca.h b/arch/ia64/include/asm/mca.h
index 43f96ab..8c70961 100644
--- a/arch/ia64/include/asm/mca.h
+++ b/arch/ia64/include/asm/mca.h
@@ -143,6 +143,7 @@ extern unsigned long __per_cpu_mca[NR_CPUS];
extern int cpe_vector;
extern int ia64_cpe_irq;
extern void ia64_mca_init(void);
+extern void ia64_mca_irq_init(void);
extern void ia64_mca_cpu_init(void *);
extern void ia64_os_mca_dispatch(void);
extern void ia64_os_mca_dispatch_end(void);
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index ad69606..f2c41828 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -23,6 +23,8 @@
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>

+#include <asm/mca.h>
+
/*
* 'what should we do if we get a hw irq event on an illegal vector'.
* each architecture has to answer this themselves.
@@ -83,6 +85,12 @@ bool is_affinity_mask_valid(const struct cpumask *cpumask)

#endif /* CONFIG_SMP */

+int __init arch_early_irq_init(void)
+{
+ ia64_mca_irq_init();
+ return 0;
+}
+
#ifdef CONFIG_HOTPLUG_CPU
unsigned int vectors_in_migration[NR_IRQS];

diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 84fb405..9b97303 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -2071,22 +2071,16 @@ ia64_mca_init(void)
printk(KERN_INFO "MCA related initialization done\n");
}

+
/*
- * ia64_mca_late_init
- *
- * Opportunity to setup things that require initialization later
- * than ia64_mca_init. Setup a timer to poll for CPEs if the
- * platform doesn't support an interrupt driven mechanism.
- *
- * Inputs : None
- * Outputs : Status
+ * These pieces cannot be done in ia64_mca_init() because it is called before
+ * early_irq_init() which would wipe out our percpu irq registrations. But we
+ * cannot leave them until ia64_mca_late_init() because by then all the other
+ * processors have been brought online and have set their own CMC vectors to
+ * point at a non-existant action. Called from arch_early_irq_init().
*/
-static int __init
-ia64_mca_late_init(void)
+void __init ia64_mca_irq_init(void)
{
- if (!mca_init)
- return 0;
-
/*
* Configure the CMCI/P vector and handler. Interrupts for CMC are
* per-processor, so AP CMC interrupts are setup in smp_callin() (smpboot.c).
@@ -2105,6 +2099,23 @@ ia64_mca_late_init(void)
/* Setup the CPEI/P handler */
register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction);
#endif
+}
+
+/*
+ * ia64_mca_late_init
+ *
+ * Opportunity to setup things that require initialization later
+ * than ia64_mca_init. Setup a timer to poll for CPEs if the
+ * platform doesn't support an interrupt driven mechanism.
+ *
+ * Inputs : None
+ * Outputs : Status
+ */
+static int __init
+ia64_mca_late_init(void)
+{
+ if (!mca_init)
+ return 0;

register_hotcpu_notifier(&mca_cpu_notifier);

diff --git a/arch/ia64/kvm/vtlb.c b/arch/ia64/kvm/vtlb.c
index 4332f7e..a7869f8 100644
--- a/arch/ia64/kvm/vtlb.c
+++ b/arch/ia64/kvm/vtlb.c
@@ -256,7 +256,7 @@ u64 guest_vhpt_lookup(u64 iha, u64 *pte)
"srlz.d;;"
"ssm psr.i;;"
"srlz.d;;"
- : "=r"(ret) : "r"(iha), "r"(pte):"memory");
+ : "=&r"(ret) : "r"(iha), "r"(pte) : "memory");

return ret;
}
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index cdf6b3f..2c49227 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -502,6 +502,7 @@ _GLOBAL(copy_and_flush)
sync
addi r5,r5,8
addi r6,r6,8
+ isync
blr

.align 8
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index b22a83a..24523dc 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -221,7 +221,7 @@ int __node_distance(int a, int b)
int distance = LOCAL_DISTANCE;

if (!form1_affinity)
- return distance;
+ return ((a == b) ? LOCAL_DISTANCE : REMOTE_DISTANCE);

for (i = 0; i < distance_ref_points_depth; i++) {
if (distance_lookup_table[a][i] == distance_lookup_table[b][i])
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index e481f6b..70ec4e9 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -100,6 +100,7 @@ spufs_new_inode(struct super_block *sb, int mode)
if (!inode)
goto out;

+ inode->i_ino = get_next_ino();
inode->i_mode = mode;
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 38ebb2c..ddbbea3 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -781,6 +781,7 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma,
return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot);
}

+#include <asm/tlbflush.h>
#include <asm-generic/pgtable.h>

/* We provide our own get_unmapped_area to cope with VA holes and
diff --git a/arch/sparc/include/asm/system_64.h b/arch/sparc/include/asm/system_64.h
index 10bcabc..f856c7f 100644
--- a/arch/sparc/include/asm/system_64.h
+++ b/arch/sparc/include/asm/system_64.h
@@ -140,8 +140,7 @@ do { \
* and 2 stores in this critical code path. -DaveM
*/
#define switch_to(prev, next, last) \
-do { flush_tlb_pending(); \
- save_and_clear_fpu(); \
+do { save_and_clear_fpu(); \
/* If you are tempted to conditionalize the following */ \
/* so that ASI is only written if it changes, think again. */ \
__asm__ __volatile__("wr %%g0, %0, %%asi" \
diff --git a/arch/sparc/include/asm/tlbflush_64.h b/arch/sparc/include/asm/tlbflush_64.h
index 2ef4634..f0d6a97 100644
--- a/arch/sparc/include/asm/tlbflush_64.h
+++ b/arch/sparc/include/asm/tlbflush_64.h
@@ -11,24 +11,40 @@
struct tlb_batch {
struct mm_struct *mm;
unsigned long tlb_nr;
+ unsigned long active;
unsigned long vaddrs[TLB_BATCH_NR];
};

extern void flush_tsb_kernel_range(unsigned long start, unsigned long end);
extern void flush_tsb_user(struct tlb_batch *tb);
+extern void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr);

/* TLB flush operations. */

-extern void flush_tlb_pending(void);
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+}
+
+static inline void flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long vmaddr)
+{
+}
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)
+{
+}
+
+#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE

-#define flush_tlb_range(vma,start,end) \
- do { (void)(start); flush_tlb_pending(); } while (0)
-#define flush_tlb_page(vma,addr) flush_tlb_pending()
-#define flush_tlb_mm(mm) flush_tlb_pending()
+extern void flush_tlb_pending(void);
+extern void arch_enter_lazy_mmu_mode(void);
+extern void arch_leave_lazy_mmu_mode(void);
+#define arch_flush_lazy_mmu_mode() do {} while (0)

/* Local cpu only. */
extern void __flush_tlb_all(void);
-
+extern void __flush_tlb_page(unsigned long context, unsigned long vaddr);
extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end);

#ifndef CONFIG_SMP
@@ -38,15 +54,24 @@ do { flush_tsb_kernel_range(start,end); \
__flush_tlb_kernel_range(start,end); \
} while (0)

+static inline void global_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
+{
+ __flush_tlb_page(CTX_HWBITS(mm->context), vaddr);
+}
+
#else /* CONFIG_SMP */

extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end);
+extern void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr);

#define flush_tlb_kernel_range(start, end) \
do { flush_tsb_kernel_range(start,end); \
smp_flush_tlb_kernel_range(start, end); \
} while (0)

+#define global_flush_tlb_page(mm, vaddr) \
+ smp_flush_tlb_page(mm, vaddr)
+
#endif /* ! CONFIG_SMP */

#endif /* _SPARC64_TLBFLUSH_H */
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 7560772..e21d3c0d 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -856,7 +856,7 @@ void smp_tsb_sync(struct mm_struct *mm)
}

extern unsigned long xcall_flush_tlb_mm;
-extern unsigned long xcall_flush_tlb_pending;
+extern unsigned long xcall_flush_tlb_page;
extern unsigned long xcall_flush_tlb_kernel_range;
extern unsigned long xcall_fetch_glob_regs;
extern unsigned long xcall_receive_signal;
@@ -1070,23 +1070,56 @@ local_flush_and_out:
put_cpu();
}

+struct tlb_pending_info {
+ unsigned long ctx;
+ unsigned long nr;
+ unsigned long *vaddrs;
+};
+
+static void tlb_pending_func(void *info)
+{
+ struct tlb_pending_info *t = info;
+
+ __flush_tlb_pending(t->ctx, t->nr, t->vaddrs);
+}
+
void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long *vaddrs)
{
u32 ctx = CTX_HWBITS(mm->context);
+ struct tlb_pending_info info;
int cpu = get_cpu();

+ info.ctx = ctx;
+ info.nr = nr;
+ info.vaddrs = vaddrs;
+
if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
else
- smp_cross_call_masked(&xcall_flush_tlb_pending,
- ctx, nr, (unsigned long) vaddrs,
- mm_cpumask(mm));
+ smp_call_function_many(mm_cpumask(mm), tlb_pending_func,
+ &info, 1);

__flush_tlb_pending(ctx, nr, vaddrs);

put_cpu();
}

+void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
+{
+ unsigned long context = CTX_HWBITS(mm->context);
+ int cpu = get_cpu();
+
+ if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
+ cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
+ else
+ smp_cross_call_masked(&xcall_flush_tlb_page,
+ context, vaddr, 0,
+ mm_cpumask(mm));
+ __flush_tlb_page(context, vaddr);
+
+ put_cpu();
+}
+
void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
start &= PAGE_MASK;
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index b1f279c..afd021e 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -24,11 +24,17 @@ static DEFINE_PER_CPU(struct tlb_batch, tlb_batch);
void flush_tlb_pending(void)
{
struct tlb_batch *tb = &get_cpu_var(tlb_batch);
+ struct mm_struct *mm = tb->mm;

- if (tb->tlb_nr) {
- flush_tsb_user(tb);
+ if (!tb->tlb_nr)
+ goto out;

- if (CTX_VALID(tb->mm->context)) {
+ flush_tsb_user(tb);
+
+ if (CTX_VALID(mm->context)) {
+ if (tb->tlb_nr == 1) {
+ global_flush_tlb_page(mm, tb->vaddrs[0]);
+ } else {
#ifdef CONFIG_SMP
smp_flush_tlb_pending(tb->mm, tb->tlb_nr,
&tb->vaddrs[0]);
@@ -37,12 +43,30 @@ void flush_tlb_pending(void)
tb->tlb_nr, &tb->vaddrs[0]);
#endif
}
- tb->tlb_nr = 0;
}

+ tb->tlb_nr = 0;
+
+out:
put_cpu_var(tlb_batch);
}

+void arch_enter_lazy_mmu_mode(void)
+{
+ struct tlb_batch *tb = &__get_cpu_var(tlb_batch);
+
+ tb->active = 1;
+}
+
+void arch_leave_lazy_mmu_mode(void)
+{
+ struct tlb_batch *tb = &__get_cpu_var(tlb_batch);
+
+ if (tb->tlb_nr)
+ flush_tlb_pending();
+ tb->active = 0;
+}
+
void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
pte_t *ptep, pte_t orig, int fullmm)
{
@@ -90,6 +114,12 @@ no_cache_flush:
nr = 0;
}

+ if (!tb->active) {
+ global_flush_tlb_page(mm, vaddr);
+ flush_tsb_user_page(mm, vaddr);
+ goto out;
+ }
+
if (nr == 0)
tb->mm = mm;

@@ -98,5 +128,6 @@ no_cache_flush:
if (nr >= TLB_BATCH_NR)
flush_tlb_pending();

+out:
put_cpu_var(tlb_batch);
}
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index 536412d..3ebcac7 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -8,11 +8,10 @@
#include <linux/slab.h>
#include <asm/system.h>
#include <asm/page.h>
-#include <asm/tlbflush.h>
-#include <asm/tlb.h>
-#include <asm/mmu_context.h>
#include <asm/pgtable.h>
+#include <asm/mmu_context.h>
#include <asm/tsb.h>
+#include <asm/tlb.h>
#include <asm/oplib.h>

extern struct tsb swapper_tsb[KERNEL_TSB_NENTRIES];
@@ -47,23 +46,27 @@ void flush_tsb_kernel_range(unsigned long start, unsigned long end)
}
}

-static void __flush_tsb_one(struct tlb_batch *tb, unsigned long hash_shift,
- unsigned long tsb, unsigned long nentries)
+static void __flush_tsb_one_entry(unsigned long tsb, unsigned long v,
+ unsigned long hash_shift,
+ unsigned long nentries)
{
- unsigned long i;
+ unsigned long tag, ent, hash;

- for (i = 0; i < tb->tlb_nr; i++) {
- unsigned long v = tb->vaddrs[i];
- unsigned long tag, ent, hash;
+ v &= ~0x1UL;
+ hash = tsb_hash(v, hash_shift, nentries);
+ ent = tsb + (hash * sizeof(struct tsb));
+ tag = (v >> 22UL);

- v &= ~0x1UL;
+ tsb_flush(ent, tag);
+}

- hash = tsb_hash(v, hash_shift, nentries);
- ent = tsb + (hash * sizeof(struct tsb));
- tag = (v >> 22UL);
+static void __flush_tsb_one(struct tlb_batch *tb, unsigned long hash_shift,
+ unsigned long tsb, unsigned long nentries)
+{
+ unsigned long i;

- tsb_flush(ent, tag);
- }
+ for (i = 0; i < tb->tlb_nr; i++)
+ __flush_tsb_one_entry(tsb, tb->vaddrs[i], hash_shift, nentries);
}

void flush_tsb_user(struct tlb_batch *tb)
@@ -91,6 +94,30 @@ void flush_tsb_user(struct tlb_batch *tb)
spin_unlock_irqrestore(&mm->context.lock, flags);
}

+void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr)
+{
+ unsigned long nentries, base, flags;
+
+ spin_lock_irqsave(&mm->context.lock, flags);
+
+ base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb;
+ nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries;
+ if (tlb_type == cheetah_plus || tlb_type == hypervisor)
+ base = __pa(base);
+ __flush_tsb_one_entry(base, vaddr, PAGE_SHIFT, nentries);
+
+#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
+ if (mm->context.tsb_block[MM_TSB_HUGE].tsb) {
+ base = (unsigned long) mm->context.tsb_block[MM_TSB_HUGE].tsb;
+ nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
+ if (tlb_type == cheetah_plus || tlb_type == hypervisor)
+ base = __pa(base);
+ __flush_tsb_one_entry(base, vaddr, HPAGE_SHIFT, nentries);
+ }
+#endif
+ spin_unlock_irqrestore(&mm->context.lock, flags);
+}
+
#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
#define HV_PGSZ_IDX_BASE HV_PGSZ_IDX_8K
#define HV_PGSZ_MASK_BASE HV_PGSZ_MASK_8K
diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S
index 874162a..dd10caa 100644
--- a/arch/sparc/mm/ultra.S
+++ b/arch/sparc/mm/ultra.S
@@ -53,6 +53,33 @@ __flush_tlb_mm: /* 18 insns */
nop

.align 32
+ .globl __flush_tlb_page
+__flush_tlb_page: /* 22 insns */
+ /* %o0 = context, %o1 = vaddr */
+ rdpr %pstate, %g7
+ andn %g7, PSTATE_IE, %g2
+ wrpr %g2, %pstate
+ mov SECONDARY_CONTEXT, %o4
+ ldxa [%o4] ASI_DMMU, %g2
+ stxa %o0, [%o4] ASI_DMMU
+ andcc %o1, 1, %g0
+ andn %o1, 1, %o3
+ be,pn %icc, 1f
+ or %o3, 0x10, %o3
+ stxa %g0, [%o3] ASI_IMMU_DEMAP
+1: stxa %g0, [%o3] ASI_DMMU_DEMAP
+ membar #Sync
+ stxa %g2, [%o4] ASI_DMMU
+ sethi %hi(KERNBASE), %o4
+ flush %o4
+ retl
+ wrpr %g7, 0x0, %pstate
+ nop
+ nop
+ nop
+ nop
+
+ .align 32
.globl __flush_tlb_pending
__flush_tlb_pending: /* 26 insns */
/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
@@ -203,6 +230,31 @@ __cheetah_flush_tlb_mm: /* 19 insns */
retl
wrpr %g7, 0x0, %pstate

+__cheetah_flush_tlb_page: /* 22 insns */
+ /* %o0 = context, %o1 = vaddr */
+ rdpr %pstate, %g7
+ andn %g7, PSTATE_IE, %g2
+ wrpr %g2, 0x0, %pstate
+ wrpr %g0, 1, %tl
+ mov PRIMARY_CONTEXT, %o4
+ ldxa [%o4] ASI_DMMU, %g2
+ srlx %g2, CTX_PGSZ1_NUC_SHIFT, %o3
+ sllx %o3, CTX_PGSZ1_NUC_SHIFT, %o3
+ or %o0, %o3, %o0 /* Preserve nucleus page size fields */
+ stxa %o0, [%o4] ASI_DMMU
+ andcc %o1, 1, %g0
+ be,pn %icc, 1f
+ andn %o1, 1, %o3
+ stxa %g0, [%o3] ASI_IMMU_DEMAP
+1: stxa %g0, [%o3] ASI_DMMU_DEMAP
+ membar #Sync
+ stxa %g2, [%o4] ASI_DMMU
+ sethi %hi(KERNBASE), %o4
+ flush %o4
+ wrpr %g0, 0, %tl
+ retl
+ wrpr %g7, 0x0, %pstate
+
__cheetah_flush_tlb_pending: /* 27 insns */
/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
rdpr %pstate, %g7
@@ -269,6 +321,20 @@ __hypervisor_flush_tlb_mm: /* 10 insns */
retl
nop

+__hypervisor_flush_tlb_page: /* 11 insns */
+ /* %o0 = context, %o1 = vaddr */
+ mov %o0, %g2
+ mov %o1, %o0 /* ARG0: vaddr + IMMU-bit */
+ mov %g2, %o1 /* ARG1: mmu context */
+ mov HV_MMU_ALL, %o2 /* ARG2: flags */
+ srlx %o0, PAGE_SHIFT, %o0
+ sllx %o0, PAGE_SHIFT, %o0
+ ta HV_MMU_UNMAP_ADDR_TRAP
+ brnz,pn %o0, __hypervisor_tlb_tl0_error
+ mov HV_MMU_UNMAP_ADDR_TRAP, %o1
+ retl
+ nop
+
__hypervisor_flush_tlb_pending: /* 16 insns */
/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
sllx %o1, 3, %g1
@@ -339,6 +405,13 @@ cheetah_patch_cachetlbops:
call tlb_patch_one
mov 19, %o2

+ sethi %hi(__flush_tlb_page), %o0
+ or %o0, %lo(__flush_tlb_page), %o0
+ sethi %hi(__cheetah_flush_tlb_page), %o1
+ or %o1, %lo(__cheetah_flush_tlb_page), %o1
+ call tlb_patch_one
+ mov 22, %o2
+
sethi %hi(__flush_tlb_pending), %o0
or %o0, %lo(__flush_tlb_pending), %o0
sethi %hi(__cheetah_flush_tlb_pending), %o1
@@ -397,10 +470,9 @@ xcall_flush_tlb_mm: /* 21 insns */
nop
nop

- .globl xcall_flush_tlb_pending
-xcall_flush_tlb_pending: /* 21 insns */
- /* %g5=context, %g1=nr, %g7=vaddrs[] */
- sllx %g1, 3, %g1
+ .globl xcall_flush_tlb_page
+xcall_flush_tlb_page: /* 17 insns */
+ /* %g5=context, %g1=vaddr */
mov PRIMARY_CONTEXT, %g4
ldxa [%g4] ASI_DMMU, %g2
srlx %g2, CTX_PGSZ1_NUC_SHIFT, %g4
@@ -408,20 +480,16 @@ xcall_flush_tlb_pending: /* 21 insns */
or %g5, %g4, %g5
mov PRIMARY_CONTEXT, %g4
stxa %g5, [%g4] ASI_DMMU
-1: sub %g1, (1 << 3), %g1
- ldx [%g7 + %g1], %g5
- andcc %g5, 0x1, %g0
+ andcc %g1, 0x1, %g0
be,pn %icc, 2f
-
- andn %g5, 0x1, %g5
+ andn %g1, 0x1, %g5
stxa %g0, [%g5] ASI_IMMU_DEMAP
2: stxa %g0, [%g5] ASI_DMMU_DEMAP
membar #Sync
- brnz,pt %g1, 1b
- nop
stxa %g2, [%g4] ASI_DMMU
retry
nop
+ nop

.globl xcall_flush_tlb_kernel_range
xcall_flush_tlb_kernel_range: /* 25 insns */
@@ -596,15 +664,13 @@ __hypervisor_xcall_flush_tlb_mm: /* 21 insns */
membar #Sync
retry

- .globl __hypervisor_xcall_flush_tlb_pending
-__hypervisor_xcall_flush_tlb_pending: /* 21 insns */
- /* %g5=ctx, %g1=nr, %g7=vaddrs[], %g2,%g3,%g4,g6=scratch */
- sllx %g1, 3, %g1
+ .globl __hypervisor_xcall_flush_tlb_page
+__hypervisor_xcall_flush_tlb_page: /* 17 insns */
+ /* %g5=ctx, %g1=vaddr */
mov %o0, %g2
mov %o1, %g3
mov %o2, %g4
-1: sub %g1, (1 << 3), %g1
- ldx [%g7 + %g1], %o0 /* ARG0: virtual address */
+ mov %g1, %o0 /* ARG0: virtual address */
mov %g5, %o1 /* ARG1: mmu context */
mov HV_MMU_ALL, %o2 /* ARG2: flags */
srlx %o0, PAGE_SHIFT, %o0
@@ -613,8 +679,6 @@ __hypervisor_xcall_flush_tlb_pending: /* 21 insns */
mov HV_MMU_UNMAP_ADDR_TRAP, %g6
brnz,a,pn %o0, __hypervisor_tlb_xcall_error
mov %o0, %g5
- brnz,pt %g1, 1b
- nop
mov %g2, %o0
mov %g3, %o1
mov %g4, %o2
@@ -697,6 +761,13 @@ hypervisor_patch_cachetlbops:
call tlb_patch_one
mov 10, %o2

+ sethi %hi(__flush_tlb_page), %o0
+ or %o0, %lo(__flush_tlb_page), %o0
+ sethi %hi(__hypervisor_flush_tlb_page), %o1
+ or %o1, %lo(__hypervisor_flush_tlb_page), %o1
+ call tlb_patch_one
+ mov 11, %o2
+
sethi %hi(__flush_tlb_pending), %o0
or %o0, %lo(__flush_tlb_pending), %o0
sethi %hi(__hypervisor_flush_tlb_pending), %o1
@@ -728,12 +799,12 @@ hypervisor_patch_cachetlbops:
call tlb_patch_one
mov 21, %o2

- sethi %hi(xcall_flush_tlb_pending), %o0
- or %o0, %lo(xcall_flush_tlb_pending), %o0
- sethi %hi(__hypervisor_xcall_flush_tlb_pending), %o1
- or %o1, %lo(__hypervisor_xcall_flush_tlb_pending), %o1
+ sethi %hi(xcall_flush_tlb_page), %o0
+ or %o0, %lo(xcall_flush_tlb_page), %o0
+ sethi %hi(__hypervisor_xcall_flush_tlb_page), %o1
+ or %o1, %lo(__hypervisor_xcall_flush_tlb_page), %o1
call tlb_patch_one
- mov 21, %o2
+ mov 17, %o2

sethi %hi(xcall_flush_tlb_kernel_range), %o0
or %o0, %lo(xcall_flush_tlb_kernel_range), %o0
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 957c216..4bb12f7 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -130,8 +130,14 @@ static struct event_constraint intel_gen_event_constraints[] __read_mostly =
};

static struct extra_reg intel_snb_extra_regs[] __read_mostly = {
- INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3fffffffffull, RSP_0),
- INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1),
+ INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3f807f8fffull, RSP_0),
+ INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3f807f8fffull, RSP_1),
+ EVENT_EXTRA_END
+};
+
+static struct extra_reg intel_snbep_extra_regs[] __read_mostly = {
+ INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3fffff8fffull, RSP_0),
+ INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3fffff8fffull, RSP_1),
EVENT_EXTRA_END
};

@@ -1711,7 +1717,10 @@ __init int intel_pmu_init(void)

x86_pmu.event_constraints = intel_snb_event_constraints;
x86_pmu.pebs_constraints = intel_snb_pebs_event_constraints;
- x86_pmu.extra_regs = intel_snb_extra_regs;
+ if (boot_cpu_data.x86_model == 45)
+ x86_pmu.extra_regs = intel_snbep_extra_regs;
+ else
+ x86_pmu.extra_regs = intel_snb_extra_regs;
/* all extra regs are per-cpu when HT is on */
x86_pmu.er_flags |= ERF_HAS_RSP_1;
x86_pmu.er_flags |= ERF_NO_HT_SHARING;
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 34a7f40..a4cca06 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -44,11 +44,15 @@ static void __init find_early_table_space(struct map_range *mr, int nr_range)
int i;
unsigned long puds = 0, pmds = 0, ptes = 0, tables;
unsigned long start = 0, good_end;
+ unsigned long pgd_extra = 0;
phys_addr_t base;

for (i = 0; i < nr_range; i++) {
unsigned long range, extra;

+ if ((mr[i].end >> PGDIR_SHIFT) - (mr[i].start >> PGDIR_SHIFT))
+ pgd_extra++;
+
range = mr[i].end - mr[i].start;
puds += (range + PUD_SIZE - 1) >> PUD_SHIFT;

@@ -73,6 +77,7 @@ static void __init find_early_table_space(struct map_range *mr, int nr_range)
tables = roundup(puds * sizeof(pud_t), PAGE_SIZE);
tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE);
tables += roundup(ptes * sizeof(pte_t), PAGE_SIZE);
+ tables += (pgd_extra * PAGE_SIZE);

#ifdef CONFIG_X86_32
/* for fixmap */
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 69b9ef6..044f5d9 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1391,8 +1391,11 @@ static int __cpuinit xen_hvm_cpu_notify(struct notifier_block *self,
switch (action) {
case CPU_UP_PREPARE:
xen_vcpu_setup(cpu);
- if (xen_have_vector_callback)
+ if (xen_have_vector_callback) {
xen_init_lock_cpu(cpu);
+ if (xen_feature(XENFEAT_hvm_safe_pvclock))
+ xen_setup_timer(cpu);
+ }
break;
default:
break;
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 9a23fff..6e4d5dc 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -563,6 +563,8 @@ static void xen_hvm_cpu_die(unsigned int cpu)
unbind_from_irqhandler(per_cpu(xen_callfunc_irq, cpu), NULL);
unbind_from_irqhandler(per_cpu(xen_debug_irq, cpu), NULL);
unbind_from_irqhandler(per_cpu(xen_callfuncsingle_irq, cpu), NULL);
+ xen_uninit_lock_cpu(cpu);
+ xen_teardown_timer(cpu);
native_cpu_die(cpu);
}

diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index 0296a95..054cc01 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -497,7 +497,11 @@ static void xen_hvm_setup_cpu_clockevents(void)
{
int cpu = smp_processor_id();
xen_setup_runstate_info(cpu);
- xen_setup_timer(cpu);
+ /*
+ * xen_setup_timer(cpu) - snprintf is bad in atomic context. Hence
+ * doing it xen_hvm_cpu_notify (which gets called by smp_init during
+ * early bootup and also during CPU hotplug events).
+ */
xen_setup_cpu_clockevents();
}

diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index ef5356c..0262210 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -161,6 +161,8 @@ static int hash_recvmsg(struct kiocb *unused, struct socket *sock,
else if (len < ds)
msg->msg_flags |= MSG_TRUNC;

+ msg->msg_namelen = 0;
+
lock_sock(sk);
if (ctx->more) {
ctx->more = 0;
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 6a6dfc0..a1c4f0a 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -432,6 +432,7 @@ static int skcipher_recvmsg(struct kiocb *unused, struct socket *sock,
long copied = 0;

lock_sock(sk);
+ msg->msg_namelen = 0;
for (iov = msg->msg_iov, iovlen = msg->msg_iovlen; iovlen > 0;
iovlen--, iov++) {
unsigned long seglen = iov->iov_len;
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 7aff631..5b0f075 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -247,8 +247,8 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
*control &= OSC_PCI_CONTROL_MASKS;
capbuf[OSC_CONTROL_TYPE] = *control | root->osc_control_set;
} else {
- /* Run _OSC query for all possible controls. */
- capbuf[OSC_CONTROL_TYPE] = OSC_PCI_CONTROL_MASKS;
+ /* Run _OSC query only with existing controls. */
+ capbuf[OSC_CONTROL_TYPE] = root->osc_control_set;
}

status = acpi_pci_run_osc(root->device->handle, capbuf, &result);
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 0833896..14d49e4 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -374,26 +374,14 @@ static int hpet_mmap(struct file *file, struct vm_area_struct *vma)
struct hpet_dev *devp;
unsigned long addr;

- if (((vma->vm_end - vma->vm_start) != PAGE_SIZE) || vma->vm_pgoff)
- return -EINVAL;
-
devp = file->private_data;
addr = devp->hd_hpets->hp_hpet_phys;

if (addr & (PAGE_SIZE - 1))
return -ENOSYS;

- vma->vm_flags |= VM_IO;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-
- if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT,
- PAGE_SIZE, vma->vm_page_prot)) {
- printk(KERN_ERR "%s: io_remap_pfn_range failed\n",
- __func__);
- return -EAGAIN;
- }
-
- return 0;
+ return vm_iomap_memory(vma, addr, PAGE_SIZE);
#else
return -ENOSYS;
#endif
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index ca67338..c77fc67 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1007,56 +1007,50 @@ intel_teardown_mchbar(struct drm_device *dev)
release_resource(&dev_priv->mch_res);
}

-#define PTE_ADDRESS_MASK 0xfffff000
-#define PTE_ADDRESS_MASK_HIGH 0x000000f0 /* i915+ */
-#define PTE_MAPPING_TYPE_UNCACHED (0 << 1)
-#define PTE_MAPPING_TYPE_DCACHE (1 << 1) /* i830 only */
-#define PTE_MAPPING_TYPE_CACHED (3 << 1)
-#define PTE_MAPPING_TYPE_MASK (3 << 1)
-#define PTE_VALID (1 << 0)
-
-/**
- * i915_stolen_to_phys - take an offset into stolen memory and turn it into
- * a physical one
- * @dev: drm device
- * @offset: address to translate
- *
- * Some chip functions require allocations from stolen space and need the
- * physical address of the memory in question.
- */
-static unsigned long i915_stolen_to_phys(struct drm_device *dev, u32 offset)
+static unsigned long i915_stolen_to_physical(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct pci_dev *pdev = dev_priv->bridge_dev;
u32 base;

-#if 0
/* On the machines I have tested the Graphics Base of Stolen Memory
- * is unreliable, so compute the base by subtracting the stolen memory
- * from the Top of Low Usable DRAM which is where the BIOS places
- * the graphics stolen memory.
+ * is unreliable, so on those compute the base by subtracting the
+ * stolen memory from the Top of Low Usable DRAM which is where the
+ * BIOS places the graphics stolen memory.
+ *
+ * On gen2, the layout is slightly different with the Graphics Segment
+ * immediately following Top of Memory (or Top of Usable DRAM). Note
+ * it appears that TOUD is only reported by 865g, so we just use the
+ * top of memory as determined by the e820 probe.
+ *
+ * XXX gen2 requires an unavailable symbol and 945gm fails with
+ * its value of TOLUD.
*/
- if (INTEL_INFO(dev)->gen > 3 || IS_G33(dev)) {
- /* top 32bits are reserved = 0 */
+ base = 0;
+ if (INTEL_INFO(dev)->gen >= 6) {
+ /* Read Base Data of Stolen Memory Register (BDSM) directly.
+ * Note that there is also a MCHBAR miror at 0x1080c0 or
+ * we could use device 2:0x5c instead.
+ */
+ pci_read_config_dword(pdev, 0xB0, &base);
+ base &= ~4095; /* lower bits used for locking register */
+ } else if (INTEL_INFO(dev)->gen > 3 || IS_G33(dev)) {
+ /* Read Graphics Base of Stolen Memory directly */
pci_read_config_dword(pdev, 0xA4, &base);
- } else {
- /* XXX presume 8xx is the same as i915 */
- pci_bus_read_config_dword(pdev->bus, 2, 0x5C, &base);
- }
-#else
- if (INTEL_INFO(dev)->gen > 3 || IS_G33(dev)) {
- u16 val;
- pci_read_config_word(pdev, 0xb0, &val);
- base = val >> 4 << 20;
- } else {
+#if 0
+ } else if (IS_GEN3(dev)) {
u8 val;
+ /* Stolen is immediately below Top of Low Usable DRAM */
pci_read_config_byte(pdev, 0x9c, &val);
base = val >> 3 << 27;
- }
- base -= dev_priv->mm.gtt->stolen_size;
+ base -= dev_priv->mm.gtt->stolen_size;
+ } else {
+ /* Stolen is immediately above Top of Memory */
+ base = max_low_pfn_mapped << PAGE_SHIFT;
#endif
+ }

- return base + offset;
+ return base;
}

static void i915_warn_stolen(struct drm_device *dev)
@@ -1081,7 +1075,7 @@ static void i915_setup_compression(struct drm_device *dev, int size)
if (!compressed_fb)
goto err;

- cfb_base = i915_stolen_to_phys(dev, compressed_fb->start);
+ cfb_base = dev_priv->mm.stolen_base + compressed_fb->start;
if (!cfb_base)
goto err_fb;

@@ -1094,7 +1088,7 @@ static void i915_setup_compression(struct drm_device *dev, int size)
if (!compressed_llb)
goto err_fb;

- ll_base = i915_stolen_to_phys(dev, compressed_llb->start);
+ ll_base = dev_priv->mm.stolen_base + compressed_llb->start;
if (!ll_base)
goto err_llb;
}
@@ -1113,7 +1107,7 @@ static void i915_setup_compression(struct drm_device *dev, int size)
}

DRM_DEBUG_KMS("FBC base 0x%08lx, ll base 0x%08lx, size %dM\n",
- cfb_base, ll_base, size >> 20);
+ (long)cfb_base, (long)ll_base, size >> 20);
return;

err_llb:
@@ -1187,6 +1181,13 @@ static int i915_load_gem_init(struct drm_device *dev)
gtt_size = dev_priv->mm.gtt->gtt_total_entries << PAGE_SHIFT;
mappable_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;

+ dev_priv->mm.stolen_base = i915_stolen_to_physical(dev);
+ if (dev_priv->mm.stolen_base == 0)
+ return 0;
+
+ DRM_DEBUG_KMS("found %d bytes of stolen memory at %08lx\n",
+ dev_priv->mm.gtt->stolen_size, dev_priv->mm.stolen_base);
+
/* Basic memrange allocator for stolen space */
drm_mm_init(&dev_priv->mm.stolen, 0, prealloc_size);

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 144d37c..20cd295 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -581,6 +581,7 @@ typedef struct drm_i915_private {
unsigned long gtt_start;
unsigned long gtt_mappable_end;
unsigned long gtt_end;
+ unsigned long stolen_base; /* limited to low memory (32-bit) */

struct io_mapping *gtt_mapping;
int gtt_mtrr;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b0186b8..2865b44 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2520,6 +2520,11 @@ i915_find_fence_reg(struct drm_device *dev,
return avail;
}

+static void i915_gem_write_fence__ipi(void *data)
+{
+ wbinvd();
+}
+
/**
* i915_gem_object_get_fence - set up a fence reg for an object
* @obj: object to map through a fence reg
@@ -2640,6 +2645,17 @@ update:
switch (INTEL_INFO(dev)->gen) {
case 7:
case 6:
+ /* In order to fully serialize access to the fenced region and
+ * the update to the fence register we need to take extreme
+ * measures on SNB+. In theory, the write to the fence register
+ * flushes all memory transactions before, and coupled with the
+ * mb() placed around the register write we serialise all memory
+ * operations with respect to the changes in the tiler. Yet, on
+ * SNB+ we need to take a step further and emit an explicit wbinvd()
+ * on each processor in order to manually flush all memory
+ * transactions before updating the fence register.
+ */
+ on_each_cpu(i915_gem_write_fence__ipi, NULL, 1);
ret = sandybridge_write_fence_reg(obj, pipelined);
break;
case 5:
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 897ca06..cfbb893 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9093,6 +9093,9 @@ void intel_modeset_cleanup(struct drm_device *dev)
del_timer_sync(&dev_priv->idle_timer);
cancel_work_sync(&dev_priv->idle_work);

+ /* destroy backlight, if any, before the connectors */
+ intel_panel_destroy_backlight(dev);
+
drm_mode_config_cleanup(dev);
}

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index c8ecaab..a07ccab 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2274,11 +2274,6 @@ done:
static void
intel_dp_destroy(struct drm_connector *connector)
{
- struct drm_device *dev = connector->dev;
-
- if (intel_dpd_is_edp(dev))
- intel_panel_destroy_backlight(dev);
-
drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
kfree(connector);
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 6eda1b5..8ac91b8 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -371,6 +371,7 @@ void intel_dvo_init(struct drm_device *dev)
const struct intel_dvo_device *dvo = &intel_dvo_devices[i];
struct i2c_adapter *i2c;
int gpio;
+ bool dvoinit;

/* Allow the I2C driver info to specify the GPIO to be used in
* special cases, but otherwise default to what's defined
@@ -390,7 +391,17 @@ void intel_dvo_init(struct drm_device *dev)
i2c = &dev_priv->gmbus[gpio].adapter;

intel_dvo->dev = *dvo;
- if (!dvo->dev_ops->init(&intel_dvo->dev, i2c))
+
+ /* GMBUS NAK handling seems to be unstable, hence let the
+ * transmitter detection run in bit banging mode for now.
+ */
+ intel_gmbus_force_bit(i2c, true);
+
+ dvoinit = dvo->dev_ops->init(&intel_dvo->dev, i2c);
+
+ intel_gmbus_force_bit(i2c, false);
+
+ if (!dvoinit)
continue;

intel_encoder->type = INTEL_OUTPUT_DVO;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 6601d21..876bac0 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -553,8 +553,6 @@ static void intel_lvds_destroy(struct drm_connector *connector)
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = dev->dev_private;

- intel_panel_destroy_backlight(dev);
-
if (dev_priv->lid_notifier.notifier_call)
acpi_lid_notifier_unregister(&dev_priv->lid_notifier);
drm_sysfs_connector_remove(connector);
@@ -788,6 +786,14 @@ static const struct dmi_system_id intel_no_lvds[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "X7SPA-H"),
},
},
+ {
+ .callback = intel_no_lvds_dmi_callback,
+ .ident = "Fujitsu Esprimo Q900",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Q900"),
+ },
+ },

{ } /* terminating entry */
};
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 72b8949..04cb34a 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -361,6 +361,9 @@ int intel_panel_setup_backlight(struct drm_device *dev)

intel_panel_init_backlight(dev);

+ if (WARN_ON(dev_priv->backlight))
+ return -ENODEV;
+
if (dev_priv->int_lvds_connector)
connector = dev_priv->int_lvds_connector;
else if (dev_priv->int_edp_connector)
@@ -388,8 +391,10 @@ int intel_panel_setup_backlight(struct drm_device *dev)
void intel_panel_destroy_backlight(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- if (dev_priv->backlight)
+ if (dev_priv->backlight) {
backlight_device_unregister(dev_priv->backlight);
+ dev_priv->backlight = NULL;
+ }
}
#else
int intel_panel_setup_backlight(struct drm_device *dev)
diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index 3a05cdb..d969f3c 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -1387,10 +1387,10 @@ int atom_allocate_fb_scratch(struct atom_context *ctx)
firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);

DRM_DEBUG("atom firmware requested %08x %dkb\n",
- firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
- firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
+ le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
+ le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));

- usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
+ usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
}
ctx->scratch_size_bytes = 0;
if (usage_bytes == 0)
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index a25d08a..038570a 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -544,6 +544,9 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
/* use frac fb div on APUs */
if (ASIC_IS_DCE41(rdev))
pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;
+ /* use frac fb div on RS780/RS880 */
+ if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
+ pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;
if (ASIC_IS_DCE32(rdev) && mode->clock > 165000)
pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;
} else {
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 60d13fe..0495a50 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -412,6 +412,16 @@ void evergreen_hpd_init(struct radeon_device *rdev)

list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+
+ if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+ connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
+ /* don't try to enable hpd on eDP or LVDS avoid breaking the
+ * aux dp channel on imac and help (but not completely fix)
+ * https://bugzilla.redhat.com/show_bug.cgi?id=726143
+ * also avoid interrupt storms during dpms.
+ */
+ continue;
+ }
switch (radeon_connector->hpd.hpd) {
case RADEON_HPD_1:
WREG32(DC_HPD1_CONTROL, tmp);
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index c45d921..57a825d 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -506,7 +506,7 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
offset = radeon_encoder->hdmi_offset;
if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0x1, ~0x1);
- } else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
+ } else if (ASIC_IS_DCE2(rdev) && !ASIC_IS_DCE3(rdev)) {
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
WREG32_P(AVIVO_TMDSA_CNTL, 0x4, ~0x4);
@@ -572,7 +572,7 @@ void r600_hdmi_disable(struct drm_encoder *encoder)

if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0, ~0x1);
- } else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
+ } else if (ASIC_IS_DCE2(rdev) && !ASIC_IS_DCE3(rdev)) {
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
WREG32_P(AVIVO_TMDSA_CNTL, 0, ~0x4);
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 38585c5..383b38e 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1989,6 +1989,8 @@ static int radeon_atombios_parse_power_table_1_3(struct radeon_device *rdev)
num_modes = power_info->info.ucNumOfPowerModeEntries;
if (num_modes > ATOM_MAX_NUMBEROF_POWER_BLOCK)
num_modes = ATOM_MAX_NUMBEROF_POWER_BLOCK;
+ if (num_modes == 0)
+ return state_index;
rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state) * num_modes, GFP_KERNEL);
if (!rdev->pm.power_state)
return state_index;
@@ -2361,6 +2363,8 @@ static int radeon_atombios_parse_power_table_4_5(struct radeon_device *rdev)
power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);

radeon_atombios_add_pplib_thermal_controller(rdev, &power_info->pplib.sThermalController);
+ if (power_info->pplib.ucNumStates == 0)
+ return state_index;
rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state) *
power_info->pplib.ucNumStates, GFP_KERNEL);
if (!rdev->pm.power_state)
@@ -2443,6 +2447,7 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev)
int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
u16 data_offset;
u8 frev, crev;
+ u8 *power_state_offset;

if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
&frev, &crev, &data_offset))
@@ -2459,15 +2464,17 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev)
non_clock_info_array = (struct NonClockInfoArray *)
(mode_info->atom_context->bios + data_offset +
le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset));
+ if (state_array->ucNumEntries == 0)
+ return state_index;
rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state) *
state_array->ucNumEntries, GFP_KERNEL);
if (!rdev->pm.power_state)
return state_index;
+ power_state_offset = (u8 *)state_array->states;
for (i = 0; i < state_array->ucNumEntries; i++) {
mode_index = 0;
- power_state = (union pplib_power_state *)&state_array->states[i];
- /* XXX this might be an inagua bug... */
- non_clock_array_index = i; /* power_state->v2.nonClockInfoIndex */
+ power_state = (union pplib_power_state *)power_state_offset;
+ non_clock_array_index = power_state->v2.nonClockInfoIndex;
non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
&non_clock_info_array->nonClockInfo[non_clock_array_index];
rdev->pm.power_state[i].clock_info = kzalloc(sizeof(struct radeon_pm_clock_info) *
@@ -2479,9 +2486,6 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev)
if (power_state->v2.ucNumDPMLevels) {
for (j = 0; j < power_state->v2.ucNumDPMLevels; j++) {
clock_array_index = power_state->v2.clockInfoIndex[j];
- /* XXX this might be an inagua bug... */
- if (clock_array_index >= clock_info_array->ucNumEntries)
- continue;
clock_info = (union pplib_clock_info *)
&clock_info_array->clockInfo[clock_array_index];
valid = radeon_atombios_parse_pplib_clock_info(rdev,
@@ -2503,6 +2507,7 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev)
non_clock_info);
state_index++;
}
+ power_state_offset += 2 + power_state->v2.ucNumDPMLevels;
}
/* if multiple clock modes, mark the lowest as no display */
for (i = 0; i < state_index; i++) {
@@ -2549,7 +2554,9 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
default:
break;
}
- } else {
+ }
+
+ if (state_index == 0) {
rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state), GFP_KERNEL);
if (rdev->pm.power_state) {
rdev->pm.power_state[0].clock_info =
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index be2c122..4bb9e27 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -39,8 +39,12 @@ int radeon_driver_unload_kms(struct drm_device *dev)

if (rdev == NULL)
return 0;
+ if (rdev->rmmio == NULL)
+ goto done_free;
radeon_modeset_fini(rdev);
radeon_device_fini(rdev);
+
+done_free:
kfree(rdev);
dev->dev_private = NULL;
return 0;
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index ebd6c51..d58eccb 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -863,7 +863,11 @@ static int radeon_debugfs_pm_info(struct seq_file *m, void *data)
struct radeon_device *rdev = dev->dev_private;

seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk);
- seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev));
+ /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */
+ if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP))
+ seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk);
+ else
+ seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev));
seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk);
if (rdev->asic->get_memory_clock)
seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev));
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 4bb68f3..64e7065 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -311,10 +311,8 @@ static void xiic_fill_tx_fifo(struct xiic_i2c *i2c)
/* last message in transfer -> STOP */
data |= XIIC_TX_DYN_STOP_MASK;
dev_dbg(i2c->adap.dev.parent, "%s TX STOP\n", __func__);
-
- xiic_setreg16(i2c, XIIC_DTR_REG_OFFSET, data);
- } else
- xiic_setreg8(i2c, XIIC_DTR_REG_OFFSET, data);
+ }
+ xiic_setreg16(i2c, XIIC_DTR_REG_OFFSET, data);
}
}

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1702133..2d0544c 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1588,8 +1588,8 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
sector, count, 1) == 0)
return -EINVAL;
}
- } else if (sb->bblog_offset == 0)
- rdev->badblocks.shift = -1;
+ } else if (sb->bblog_offset != 0)
+ rdev->badblocks.shift = 0;

if (!refdev) {
ret = 1;
@@ -3063,7 +3063,7 @@ int md_rdev_init(struct md_rdev *rdev)
* be used - I wonder if that matters
*/
rdev->badblocks.count = 0;
- rdev->badblocks.shift = 0;
+ rdev->badblocks.shift = -1; /* disabled until explicitly enabled */
rdev->badblocks.page = kmalloc(PAGE_SIZE, GFP_KERNEL);
seqlock_init(&rdev->badblocks.lock);
if (rdev->badblocks.page == NULL)
@@ -3135,9 +3135,6 @@ static struct md_rdev *md_import_device(dev_t newdev, int super_format, int supe
goto abort_free;
}
}
- if (super_format == -1)
- /* hot-add for 0.90, or non-persistent: so no badblocks */
- rdev->badblocks.shift = -1;

return rdev;

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index fc07f90..b436b84 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1866,6 +1866,7 @@ err_detach:
write_unlock_bh(&bond->lock);

err_close:
+ slave_dev->priv_flags &= ~IFF_BONDING;
dev_close(slave_dev);

err_unset_master:
@@ -4853,9 +4854,18 @@ static int __net_init bond_net_init(struct net *net)
static void __net_exit bond_net_exit(struct net *net)
{
struct bond_net *bn = net_generic(net, bond_net_id);
+ struct bonding *bond, *tmp_bond;
+ LIST_HEAD(list);

bond_destroy_sysfs(bn);
bond_destroy_proc_dir(bn);
+
+ /* Kill off any bonds created after unregistering bond rtnl ops */
+ rtnl_lock();
+ list_for_each_entry_safe(bond, tmp_bond, &bn->dev_list, bond_list)
+ unregister_netdevice_queue(bond->dev, &list);
+ unregister_netdevice_many(&list);
+ rtnl_unlock();
}

static struct pernet_operations bond_net_ops = {
diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e.h b/drivers/net/ethernet/atheros/atl1e/atl1e.h
index edfdf6b..b5fd934 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e.h
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e.h
@@ -186,7 +186,7 @@ struct atl1e_tpd_desc {
/* how about 0x2000 */
#define MAX_TX_BUF_LEN 0x2000
#define MAX_TX_BUF_SHIFT 13
-/*#define MAX_TX_BUF_LEN 0x3000 */
+#define MAX_TSO_SEG_SIZE 0x3c00

/* rrs word 1 bit 0:31 */
#define RRS_RX_CSUM_MASK 0xFFFF
diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
index c69dc29..dd893b3 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
@@ -2352,6 +2352,7 @@ static int __devinit atl1e_probe(struct pci_dev *pdev,

INIT_WORK(&adapter->reset_task, atl1e_reset_task);
INIT_WORK(&adapter->link_chg_task, atl1e_link_chg_task);
+ netif_set_gso_max_size(netdev, MAX_TSO_SEG_SIZE);
err = register_netdev(netdev);
if (err) {
netdev_err(netdev, "register netdevice failed\n");
diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c
index f67b8ae..69c3adf 100644
--- a/drivers/net/ethernet/freescale/gianfar_ptp.c
+++ b/drivers/net/ethernet/freescale/gianfar_ptp.c
@@ -127,7 +127,6 @@ struct gianfar_ptp_registers {

#define DRIVER "gianfar_ptp"
#define DEFAULT_CKSEL 1
-#define N_ALARM 1 /* first alarm is used internally to reset fipers */
#define N_EXT_TS 2
#define REG_SIZE sizeof(struct gianfar_ptp_registers)

@@ -410,7 +409,7 @@ static struct ptp_clock_info ptp_gianfar_caps = {
.owner = THIS_MODULE,
.name = "gianfar clock",
.max_adj = 512000,
- .n_alarm = N_ALARM,
+ .n_alarm = 0,
.n_ext_ts = N_EXT_TS,
.n_per_out = 0,
.pps = 1,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 41396fa..d93eee1 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1937,6 +1937,16 @@ static irqreturn_t ixgbe_msix_other(int irq, void *data)
* with the write to EICR.
*/
eicr = IXGBE_READ_REG(hw, IXGBE_EICS);
+
+ /* The lower 16bits of the EICR register are for the queue interrupts
+ * which should be masked here in order to not accidently clear them if
+ * the bits are high when ixgbe_msix_other is called. There is a race
+ * condition otherwise which results in possible performance loss
+ * especially if the ixgbe_msix_other interrupt is triggering
+ * consistently (as it would when PPS is turned on for the X540 device)
+ */
+ eicr &= 0xFFFF0000;
+
IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr);

if (eicr & IXGBE_EICR_LSC)
@@ -5408,7 +5418,9 @@ static int ixgbe_resume(struct pci_dev *pdev)

pci_wake_from_d3(pdev, false);

+ rtnl_lock();
err = ixgbe_init_interrupt_scheme(adapter);
+ rtnl_unlock();
if (err) {
e_dev_err("Cannot initialize interrupts for device\n");
return err;
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index d812790..f698183 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -1629,8 +1629,6 @@ static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb)

if (opts2 & RxVlanTag)
__vlan_hwaccel_put_tag(skb, swab16(opts2 & 0xffff));
-
- desc->opts2 = 0;
}

static int rtl8169_gset_tbi(struct net_device *dev, struct ethtool_cmd *cmd)
@@ -5566,6 +5564,14 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
goto err_stop_0;
}

+ /* 8168evl does not automatically pad to minimum length. */
+ if (unlikely(tp->mac_version == RTL_GIGA_MAC_VER_34 &&
+ skb->len < ETH_ZLEN)) {
+ if (skb_padto(skb, ETH_ZLEN))
+ goto err_update_stats;
+ skb_put(skb, ETH_ZLEN - skb->len);
+ }
+
if (unlikely(le32_to_cpu(txd->opts1) & DescOwn))
goto err_stop_0;

@@ -5633,6 +5639,7 @@ err_dma_1:
rtl8169_unmap_tx_skb(d, tp->tx_skb + entry, txd);
err_dma_0:
dev_kfree_skb(skb);
+err_update_stats:
dev->stats.tx_dropped++;
return NETDEV_TX_OK;

@@ -5814,7 +5821,6 @@ static int rtl8169_rx_interrupt(struct net_device *dev,
rtl8169_schedule_work(dev, rtl8169_reset_task);
dev->stats.rx_fifo_errors++;
}
- rtl8169_mark_to_asic(desc, rx_buf_sz);
} else {
struct sk_buff *skb;
dma_addr_t addr = le64_to_cpu(desc->addr);
@@ -5828,16 +5834,14 @@ static int rtl8169_rx_interrupt(struct net_device *dev,
if (unlikely(rtl8169_fragmented_frame(status))) {
dev->stats.rx_dropped++;
dev->stats.rx_length_errors++;
- rtl8169_mark_to_asic(desc, rx_buf_sz);
- continue;
+ goto release_descriptor;
}

skb = rtl8169_try_rx_copy(tp->Rx_databuff[entry],
tp, pkt_size, addr);
- rtl8169_mark_to_asic(desc, rx_buf_sz);
if (!skb) {
dev->stats.rx_dropped++;
- continue;
+ goto release_descriptor;
}

rtl8169_rx_csum(skb, status);
@@ -5851,6 +5855,10 @@ static int rtl8169_rx_interrupt(struct net_device *dev,
dev->stats.rx_bytes += pkt_size;
dev->stats.rx_packets++;
}
+release_descriptor:
+ desc->opts2 = 0;
+ wmb();
+ rtl8169_mark_to_asic(desc, rx_buf_sz);
}

count = cur_rx - tp->cur_rx;
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
index ccf1524..3935994 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
@@ -563,6 +563,7 @@ void iwl_clear_ucode_stations(struct iwl_priv *priv,
void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{
struct iwl_addsta_cmd sta_cmd;
+ static const struct iwl_link_quality_cmd zero_lq = {};
struct iwl_link_quality_cmd lq;
unsigned long flags_spin;
int i;
@@ -602,7 +603,9 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
else
memcpy(&lq, priv->stations[i].lq,
sizeof(struct iwl_link_quality_cmd));
- send_lq = true;
+
+ if (!memcmp(&lq, &zero_lq, sizeof(lq)))
+ send_lq = true;
}
spin_unlock_irqrestore(&priv->shrd->sta_lock,
flags_spin);
diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 3cf4ecc..621b84f 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -1821,9 +1821,9 @@ static void mwifiex_pcie_cleanup(struct mwifiex_adapter *adapter)
if (pdev) {
pci_iounmap(pdev, card->pci_mmap);
pci_iounmap(pdev, card->pci_mmap1);
-
- pci_release_regions(pdev);
pci_disable_device(pdev);
+ pci_release_region(pdev, 2);
+ pci_release_region(pdev, 0);
pci_set_drvdata(pdev, NULL);
}
}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 6d4a531..363a5c6 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -664,15 +664,11 @@ static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state)
error = platform_pci_set_power_state(dev, state);
if (!error)
pci_update_current_state(dev, state);
- /* Fall back to PCI_D0 if native PM is not supported */
- if (!dev->pm_cap)
- dev->current_state = PCI_D0;
- } else {
+ } else
error = -ENODEV;
- /* Fall back to PCI_D0 if native PM is not supported */
- if (!dev->pm_cap)
- dev->current_state = PCI_D0;
- }
+
+ if (error && !dev->pm_cap) /* Fall back to PCI_D0 */
+ dev->current_state = PCI_D0;

return error;
}
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 05beb6c..e3eed18 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -805,9 +805,8 @@ static int cmos_suspend(struct device *dev)
mask = RTC_IRQMASK;
tmp &= ~mask;
CMOS_WRITE(tmp, RTC_CONTROL);
+ hpet_mask_rtc_irq_bit(mask);

- /* shut down hpet emulation - we don't need it for alarm */
- hpet_mask_rtc_irq_bit(RTC_PIE|RTC_AIE|RTC_UIE);
cmos_checkintr(cmos, tmp);
}
spin_unlock_irq(&rtc_lock);
@@ -872,6 +871,7 @@ static int cmos_resume(struct device *dev)
rtc_update_irq(cmos->rtc, 1, mask);
tmp &= ~RTC_AIE;
hpet_mask_rtc_irq_bit(RTC_AIE);
+ hpet_rtc_timer_init();
} while (mask & RTC_AIE);
spin_unlock_irq(&rtc_lock);
}
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 0b54a91..a56a15e 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -509,6 +509,8 @@ static void __init sclp_add_standby_memory(void)
add_memory_merged(0);
}

+#define MEM_SCT_SIZE (1UL << SECTION_SIZE_BITS)
+
static void __init insert_increment(u16 rn, int standby, int assigned)
{
struct memory_increment *incr, *new_incr;
@@ -521,7 +523,7 @@ static void __init insert_increment(u16 rn, int standby, int assigned)
new_incr->rn = rn;
new_incr->standby = standby;
if (!standby)
- new_incr->usecount = 1;
+ new_incr->usecount = rzm > MEM_SCT_SIZE ? rzm/MEM_SCT_SIZE : 1;
last_rn = 0;
prev = &sclp_mem_list;
list_for_each_entry(incr, &sclp_mem_list, list) {
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index d19b879..4735928 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -669,6 +669,9 @@ static int ptmx_open(struct inode *inode, struct file *filp)

nonseekable_open(inode, filp);

+ /* We refuse fsnotify events on ptmx, since it's a shared resource */
+ filp->f_mode |= FMODE_NONOTIFY;
+
retval = tty_alloc_file(filp);
if (retval)
return retval;
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index af5ffb9..488214a 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1901,6 +1901,8 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport)
mutex_unlock(&port->mutex);
return 0;
}
+ put_device(tty_dev);
+
if (console_suspend_enabled || !uart_console(uport))
uport->suspended = 1;

@@ -1966,9 +1968,11 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
disable_irq_wake(uport->irq);
uport->irq_wake = 0;
}
+ put_device(tty_dev);
mutex_unlock(&port->mutex);
return 0;
}
+ put_device(tty_dev);
uport->suspended = 0;

/*
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 05085be..3f35e42 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -940,6 +940,14 @@ void start_tty(struct tty_struct *tty)

EXPORT_SYMBOL(start_tty);

+/* We limit tty time update visibility to every 8 seconds or so. */
+static void tty_update_time(struct timespec *time)
+{
+ unsigned long sec = get_seconds() & ~7;
+ if ((long)(sec - time->tv_sec) > 0)
+ time->tv_sec = sec;
+}
+
/**
* tty_read - read method for tty device files
* @file: pointer to tty file
@@ -976,8 +984,10 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
else
i = -EIO;
tty_ldisc_deref(ld);
+
if (i > 0)
- inode->i_atime = current_fs_time(inode->i_sb);
+ tty_update_time(&inode->i_atime);
+
return i;
}

@@ -1079,8 +1089,8 @@ static inline ssize_t do_tty_write(
cond_resched();
}
if (written) {
- struct inode *inode = file->f_path.dentry->d_inode;
- inode->i_mtime = current_fs_time(inode->i_sb);
+ struct inode *inode = file->f_path.dentry->d_inode;
+ tty_update_time(&inode->i_mtime);
ret = written;
}
out:
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index a9df218..22f770a 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -643,6 +643,8 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
index &= 0xff;
switch (requesttype & USB_RECIP_MASK) {
case USB_RECIP_ENDPOINT:
+ if ((index & ~USB_DIR_IN) == 0)
+ return 0;
ret = findintfep(ps->dev, index);
if (ret >= 0)
ret = checkintf(ps, ret);
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index ac0d75a..9f7003e 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -63,6 +63,7 @@ static const struct usb_device_id appledisplay_table[] = {
{ APPLEDISPLAY_DEVICE(0x9219) },
{ APPLEDISPLAY_DEVICE(0x921c) },
{ APPLEDISPLAY_DEVICE(0x921d) },
+ { APPLEDISPLAY_DEVICE(0x9236) },

/* Terminating entry */
{ }
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 06394e5a..51d1712 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -195,6 +195,7 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) },
{ USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) },
{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
@@ -876,7 +877,9 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
{ USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
- { USB_DEVICE(ST_VID, ST_STMCLT1030_PID),
+ { USB_DEVICE(ST_VID, ST_STMCLT_2232_PID),
+ .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ { USB_DEVICE(ST_VID, ST_STMCLT_4232_PID),
.driver_info = (kernel_ulong_t)&ftdi_stmclite_quirk },
{ USB_DEVICE(FTDI_VID, FTDI_RF_R106) },
{ USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID),
@@ -1816,8 +1819,11 @@ static int ftdi_8u2232c_probe(struct usb_serial *serial)
}

/*
- * First and second port on STMCLiteadaptors is reserved for JTAG interface
- * and the forth port for pio
+ * First two ports on JTAG adaptors using an FT4232 such as STMicroelectronics's
+ * ST Micro Connect Lite are reserved for JTAG or other non-UART interfaces and
+ * can be accessed from userspace.
+ * The next two ports are enabled as UARTs by default, where port 2 is
+ * a conventional RS-232 UART.
*/
static int ftdi_stmclite_probe(struct usb_serial *serial)
{
@@ -1826,12 +1832,13 @@ static int ftdi_stmclite_probe(struct usb_serial *serial)

dbg("%s", __func__);

- if (interface == udev->actconfig->interface[2])
- return 0;
-
- dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n");
+ if (interface == udev->actconfig->interface[0] ||
+ interface == udev->actconfig->interface[1]) {
+ dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n");
+ return -ENODEV;
+ }

- return -ENODEV;
+ return 0;
}

/*
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 809c03a..2f86008 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -74,6 +74,7 @@
#define FTDI_OPENDCC_THROTTLE_PID 0xBFDA
#define FTDI_OPENDCC_GATEWAY_PID 0xBFDB
#define FTDI_OPENDCC_GBM_PID 0xBFDC
+#define FTDI_OPENDCC_GBM_BOOST_PID 0xBFDD

/* NZR SEM 16+ USB (http://www.nzr.de) */
#define FTDI_NZR_SEM_USB_PID 0xC1E0 /* NZR SEM-LOG16+ */
@@ -1150,7 +1151,8 @@
* STMicroelectonics
*/
#define ST_VID 0x0483
-#define ST_STMCLT1030_PID 0x3747 /* ST Micro Connect Lite STMCLT1030 */
+#define ST_STMCLT_2232_PID 0x3746
+#define ST_STMCLT_4232_PID 0x3747

/*
* Papouch products (http://www.papouch.com/)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 4418538..8513f51 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -347,6 +347,7 @@ static void option_instat_callback(struct urb *urb);
/* Olivetti products */
#define OLIVETTI_VENDOR_ID 0x0b3c
#define OLIVETTI_PRODUCT_OLICARD100 0xc000
+#define OLIVETTI_PRODUCT_OLICARD145 0xc003

/* Celot products */
#define CELOT_VENDOR_ID 0x211f
@@ -1273,6 +1274,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },

{ USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD100) },
+ { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD145) },
{ USB_DEVICE(CELOT_VENDOR_ID, CELOT_PRODUCT_CT680M) }, /* CT-650 CDMA 450 1xEVDO modem */
{ USB_DEVICE(ONDA_VENDOR_ID, ONDA_MT825UP) }, /* ONDA MT825UP modem */
{ USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung GT-B3730 LTE USB modem.*/
@@ -1350,6 +1352,12 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(TPLINK_VENDOR_ID, TPLINK_PRODUCT_MA180),
.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
{ USB_DEVICE(CHANGHONG_VENDOR_ID, CHANGHONG_PRODUCT_CH690) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d01, 0xff, 0x02, 0x01) }, /* D-Link DWM-156 (variant) */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d01, 0xff, 0x00, 0x00) }, /* D-Link DWM-156 (variant) */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d02, 0xff, 0x02, 0x01) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d02, 0xff, 0x00, 0x00) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x02, 0x01) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c
index c844718..7341ce2 100644
--- a/drivers/usb/storage/cypress_atacb.c
+++ b/drivers/usb/storage/cypress_atacb.c
@@ -248,14 +248,26 @@ static int cypress_probe(struct usb_interface *intf,
{
struct us_data *us;
int result;
+ struct usb_device *device;

result = usb_stor_probe1(&us, intf, id,
(id - cypress_usb_ids) + cypress_unusual_dev_list);
if (result)
return result;

- us->protocol_name = "Transparent SCSI with Cypress ATACB";
- us->proto_handler = cypress_atacb_passthrough;
+ /* Among CY7C68300 chips, the A revision does not support Cypress ATACB
+ * Filter out this revision from EEPROM default descriptor values
+ */
+ device = interface_to_usbdev(intf);
+ if (device->descriptor.iManufacturer != 0x38 ||
+ device->descriptor.iProduct != 0x4e ||
+ device->descriptor.iSerialNumber != 0x64) {
+ us->protocol_name = "Transparent SCSI with Cypress ATACB";
+ us->proto_handler = cypress_atacb_passthrough;
+ } else {
+ us->protocol_name = "Transparent SCSI";
+ us->proto_handler = usb_stor_transparent_scsi_command;
+ }

result = usb_stor_probe2(us);
return result;
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 7a36dff..6b4fb5c 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -1229,6 +1229,8 @@ static void fbcon_deinit(struct vc_data *vc)
finished:

fbcon_free_font(p, free_font);
+ if (free_font)
+ vc->vc_font.data = NULL;

if (!con_is_bound(&fb_con))
fbcon_exit();
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index babbb07..0a22808 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1350,15 +1350,12 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
{
struct fb_info *info = file_fb_info(file);
struct fb_ops *fb;
- unsigned long off;
+ unsigned long mmio_pgoff;
unsigned long start;
u32 len;

if (!info)
return -ENODEV;
- if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
- return -EINVAL;
- off = vma->vm_pgoff << PAGE_SHIFT;
fb = info->fbops;
if (!fb)
return -ENODEV;
@@ -1370,33 +1367,24 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
return res;
}

- /* frame buffer memory */
+ /*
+ * Ugh. This can be either the frame buffer mapping, or
+ * if pgoff points past it, the mmio mapping.
+ */
start = info->fix.smem_start;
- len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.smem_len);
- if (off >= len) {
- /* memory mapped io */
- off -= len;
- if (info->var.accel_flags) {
- mutex_unlock(&info->mm_lock);
- return -EINVAL;
- }
+ len = info->fix.smem_len;
+ mmio_pgoff = PAGE_ALIGN((start & ~PAGE_MASK) + len) >> PAGE_SHIFT;
+ if (vma->vm_pgoff >= mmio_pgoff) {
+ vma->vm_pgoff -= mmio_pgoff;
start = info->fix.mmio_start;
- len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.mmio_len);
+ len = info->fix.mmio_len;
}
mutex_unlock(&info->mm_lock);
- start &= PAGE_MASK;
- if ((vma->vm_end - vma->vm_start + off) > len)
- return -EINVAL;
- off += start;
- vma->vm_pgoff = off >> PAGE_SHIFT;
- /* This is an IO map - tell maydump to skip this VMA */
- vma->vm_flags |= VM_IO | VM_RESERVED;
+
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
- fb_pgprotect(file, vma, off);
- if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
- vma->vm_end - vma->vm_start, vma->vm_page_prot))
- return -EAGAIN;
- return 0;
+ fb_pgprotect(file, vma, start);
+
+ return vm_iomap_memory(vma, start, len);
}

static int
diff --git a/fs/aio.c b/fs/aio.c
index 3b65ee7..8cdd8ea 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1112,9 +1112,9 @@ static int aio_read_evt(struct kioctx *ioctx, struct io_event *ent)
spin_unlock(&info->ring_lock);

out:
- kunmap_atomic(ring, KM_USER0);
dprintk("leaving aio_read_evt: %d h%lu t%lu\n", ret,
(unsigned long)ring->head, (unsigned long)ring->tail);
+ kunmap_atomic(ring, KM_USER0);
return ret;
}

diff --git a/fs/dcache.c b/fs/dcache.c
index e923bf4..d322929 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1176,8 +1176,10 @@ void shrink_dcache_parent(struct dentry * parent)
LIST_HEAD(dispose);
int found;

- while ((found = select_parent(parent, &dispose)) != 0)
+ while ((found = select_parent(parent, &dispose)) != 0) {
shrink_dentry_list(&dispose);
+ cond_resched();
+ }
}
EXPORT_SYMBOL(shrink_dcache_parent);

diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index 9ed1bb1..5459168 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -82,4 +82,5 @@ config EXT4_DEBUG
Enables run-time debugging support for the ext4 filesystem.

If you select Y here, then you will be able to turn on debugging
- with a command such as "echo 1 > /sys/kernel/debug/ext4/mballoc-debug"
+ with a command such as:
+ echo 1 > /sys/module/ext4/parameters/mballoc_debug
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index bb6c7d8..a8d03a4 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -260,8 +260,7 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
if (journal->j_flags & JBD2_BARRIER &&
!jbd2_trans_will_send_data_barrier(journal, commit_tid))
needs_barrier = true;
- jbd2_log_start_commit(journal, commit_tid);
- ret = jbd2_log_wait_commit(journal, commit_tid);
+ ret = jbd2_complete_transaction(journal, commit_tid);
if (needs_barrier)
blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
out:
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 3270ffd..025b4b6 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -147,8 +147,7 @@ void ext4_evict_inode(struct inode *inode)
journal_t *journal = EXT4_SB(inode->i_sb)->s_journal;
tid_t commit_tid = EXT4_I(inode)->i_datasync_tid;

- jbd2_log_start_commit(journal, commit_tid);
- jbd2_log_wait_commit(journal, commit_tid);
+ jbd2_complete_transaction(journal, commit_tid);
filemap_write_and_wait(&inode->i_data);
}
truncate_inode_pages(&inode->i_data, 0);
diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index 4765190..73c0bd7 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -276,5 +276,5 @@ const struct file_operations fscache_stats_fops = {
.open = fscache_stats_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = single_release,
};
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index d751f04..ab9463a 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -326,7 +326,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
int space_left = 0;
int first_tag = 0;
int tag_flag;
- int i, to_free = 0;
+ int i;
int tag_bytes = journal_tag_bytes(journal);
struct buffer_head *cbh = NULL; /* For transactional checksums */
__u32 crc32_sum = ~0;
@@ -996,7 +996,7 @@ restart_loop:
journal->j_stats.run.rs_blocks_logged += stats.run.rs_blocks_logged;
spin_unlock(&journal->j_history_lock);

- commit_transaction->t_state = T_FINISHED;
+ commit_transaction->t_state = T_COMMIT_CALLBACK;
J_ASSERT(commit_transaction == journal->j_committing_transaction);
journal->j_commit_sequence = commit_transaction->t_tid;
journal->j_committing_transaction = NULL;
@@ -1011,38 +1011,44 @@ restart_loop:
journal->j_average_commit_time*3) / 4;
else
journal->j_average_commit_time = commit_time;
+
write_unlock(&journal->j_state_lock);

- if (commit_transaction->t_checkpoint_list == NULL &&
- commit_transaction->t_checkpoint_io_list == NULL) {
- __jbd2_journal_drop_transaction(journal, commit_transaction);
- to_free = 1;
+ if (journal->j_checkpoint_transactions == NULL) {
+ journal->j_checkpoint_transactions = commit_transaction;
+ commit_transaction->t_cpnext = commit_transaction;
+ commit_transaction->t_cpprev = commit_transaction;
} else {
- if (journal->j_checkpoint_transactions == NULL) {
- journal->j_checkpoint_transactions = commit_transaction;
- commit_transaction->t_cpnext = commit_transaction;
- commit_transaction->t_cpprev = commit_transaction;
- } else {
- commit_transaction->t_cpnext =
- journal->j_checkpoint_transactions;
- commit_transaction->t_cpprev =
- commit_transaction->t_cpnext->t_cpprev;
- commit_transaction->t_cpnext->t_cpprev =
- commit_transaction;
- commit_transaction->t_cpprev->t_cpnext =
+ commit_transaction->t_cpnext =
+ journal->j_checkpoint_transactions;
+ commit_transaction->t_cpprev =
+ commit_transaction->t_cpnext->t_cpprev;
+ commit_transaction->t_cpnext->t_cpprev =
+ commit_transaction;
+ commit_transaction->t_cpprev->t_cpnext =
commit_transaction;
- }
}
spin_unlock(&journal->j_list_lock);
-
+ /* Drop all spin_locks because commit_callback may be block.
+ * __journal_remove_checkpoint() can not destroy transaction
+ * under us because it is not marked as T_FINISHED yet */
if (journal->j_commit_callback)
journal->j_commit_callback(journal, commit_transaction);

trace_jbd2_end_commit(journal, commit_transaction);
jbd_debug(1, "JBD2: commit %d complete, head %d\n",
journal->j_commit_sequence, journal->j_tail_sequence);
- if (to_free)
- kfree(commit_transaction);

+ write_lock(&journal->j_state_lock);
+ spin_lock(&journal->j_list_lock);
+ commit_transaction->t_state = T_FINISHED;
+ /* Recheck checkpoint lists after j_list_lock was dropped */
+ if (commit_transaction->t_checkpoint_list == NULL &&
+ commit_transaction->t_checkpoint_io_list == NULL) {
+ __jbd2_journal_drop_transaction(journal, commit_transaction);
+ kfree(commit_transaction);
+ }
+ spin_unlock(&journal->j_list_lock);
+ write_unlock(&journal->j_state_lock);
wake_up(&journal->j_wait_done_commit);
}
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 0fa0123..17b04fc 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -663,6 +663,37 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
}

/*
+ * When this function returns the transaction corresponding to tid
+ * will be completed. If the transaction has currently running, start
+ * committing that transaction before waiting for it to complete. If
+ * the transaction id is stale, it is by definition already completed,
+ * so just return SUCCESS.
+ */
+int jbd2_complete_transaction(journal_t *journal, tid_t tid)
+{
+ int need_to_wait = 1;
+
+ read_lock(&journal->j_state_lock);
+ if (journal->j_running_transaction &&
+ journal->j_running_transaction->t_tid == tid) {
+ if (journal->j_commit_request != tid) {
+ /* transaction not yet started, so request it */
+ read_unlock(&journal->j_state_lock);
+ jbd2_log_start_commit(journal, tid);
+ goto wait_commit;
+ }
+ } else if (!(journal->j_committing_transaction &&
+ journal->j_committing_transaction->t_tid == tid))
+ need_to_wait = 0;
+ read_unlock(&journal->j_state_lock);
+ if (!need_to_wait)
+ return 0;
+wait_commit:
+ return jbd2_log_wait_commit(journal, tid);
+}
+EXPORT_SYMBOL(jbd2_complete_transaction);
+
+/*
* Log buffer allocation routines:
*/

diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index 8d4ea83..de88922 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -141,6 +141,9 @@ int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout)
timeout);
if (ret < 0)
return -ERESTARTSYS;
+ /* Reset the lock status after a server reboot so we resend */
+ if (block->b_status == nlm_lck_denied_grace_period)
+ block->b_status = nlm_lck_blocked;
req->a_res.status = block->b_status;
return 0;
}
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index a3a0987..8392cb8 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -551,9 +551,6 @@ again:
status = nlmclnt_block(block, req, NLMCLNT_POLL_TIMEOUT);
if (status < 0)
break;
- /* Resend the blocking lock request after a server reboot */
- if (resp->status == nlm_lck_denied_grace_period)
- continue;
if (resp->status != nlm_lck_blocked)
break;
}
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index fe5c5fb6..08921b8 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -880,14 +880,14 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,

nfs4_lock_state();
status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp);
- if (filp)
- get_file(filp);
- nfs4_unlock_state();
-
if (status) {
+ nfs4_unlock_state();
dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
return status;
}
+ if (filp)
+ get_file(filp);
+ nfs4_unlock_state();

cnt = write->wr_buflen;
write->wr_how_written = write->wr_stable_how;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 7d189dc..4cef99f 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -188,13 +188,7 @@ static void __nfs4_file_put_access(struct nfs4_file *fp, int oflag)
{
if (atomic_dec_and_test(&fp->fi_access[oflag])) {
nfs4_file_put_fd(fp, oflag);
- /*
- * It's also safe to get rid of the RDWR open *if*
- * we no longer have need of the other kind of access
- * or if we already have the other kind of open:
- */
- if (fp->fi_fds[1-oflag]
- || atomic_read(&fp->fi_access[1 - oflag]) == 0)
+ if (atomic_read(&fp->fi_access[1 - oflag]) == 0)
nfs4_file_put_fd(fp, O_RDWR);
}
}
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 24afa96..ade5316 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -360,10 +360,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
all 32 bits of 'nseconds'. */
READ_BUF(12);
len += 12;
- READ32(dummy32);
- if (dummy32)
- return nfserr_inval;
- READ32(iattr->ia_atime.tv_sec);
+ READ64(iattr->ia_atime.tv_sec);
READ32(iattr->ia_atime.tv_nsec);
if (iattr->ia_atime.tv_nsec >= (u32)1000000000)
return nfserr_inval;
@@ -386,10 +383,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
all 32 bits of 'nseconds'. */
READ_BUF(12);
len += 12;
- READ32(dummy32);
- if (dummy32)
- return nfserr_inval;
- READ32(iattr->ia_mtime.tv_sec);
+ READ64(iattr->ia_mtime.tv_sec);
READ32(iattr->ia_mtime.tv_nsec);
if (iattr->ia_mtime.tv_nsec >= (u32)1000000000)
return nfserr_inval;
@@ -2374,8 +2368,7 @@ out_acl:
if (bmval1 & FATTR4_WORD1_TIME_ACCESS) {
if ((buflen -= 12) < 0)
goto out_resource;
- WRITE32(0);
- WRITE32(stat.atime.tv_sec);
+ WRITE64((s64)stat.atime.tv_sec);
WRITE32(stat.atime.tv_nsec);
}
if (bmval1 & FATTR4_WORD1_TIME_DELTA) {
@@ -2388,15 +2381,13 @@ out_acl:
if (bmval1 & FATTR4_WORD1_TIME_METADATA) {
if ((buflen -= 12) < 0)
goto out_resource;
- WRITE32(0);
- WRITE32(stat.ctime.tv_sec);
+ WRITE64((s64)stat.ctime.tv_sec);
WRITE32(stat.ctime.tv_nsec);
}
if (bmval1 & FATTR4_WORD1_TIME_MODIFY) {
if ((buflen -= 12) < 0)
goto out_resource;
- WRITE32(0);
- WRITE32(stat.mtime.tv_sec);
+ WRITE64((s64)stat.mtime.tv_sec);
WRITE32(stat.mtime.tv_nsec);
}
if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 6f292dd..f255d37 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -577,7 +577,6 @@ static int inotify_update_existing_watch(struct fsnotify_group *group,
int add = (arg & IN_MASK_ADD);
int ret;

- /* don't allow invalid bits: we don't want flags set */
mask = inotify_arg_to_mask(arg);

fsn_mark = fsnotify_find_inode_mark(group, inode);
@@ -628,7 +627,6 @@ static int inotify_new_watch(struct fsnotify_group *group,
struct idr *idr = &group->inotify_data.idr;
spinlock_t *idr_lock = &group->inotify_data.idr_lock;

- /* don't allow invalid bits: we don't want flags set */
mask = inotify_arg_to_mask(arg);

tmp_i_mark = kmem_cache_alloc(inotify_inode_mark_cachep, GFP_KERNEL);
@@ -757,6 +755,10 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
int ret, fput_needed;
unsigned flags = 0;

+ /* don't allow invalid bits: we don't want flags set */
+ if (unlikely(!(mask & ALL_INOTIFY_BITS)))
+ return -EINVAL;
+
filp = fget_light(fd, &fput_needed);
if (unlikely(!filp))
return -EBADF;
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 3899e24..e756bc4 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -977,6 +977,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
enum kobj_ns_type type;
const void *ns;
ino_t ino;
+ loff_t off;

type = sysfs_ns_type(parent_sd);
ns = sysfs_info(dentry->d_sb)->ns[type];
@@ -999,6 +1000,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
return 0;
}
mutex_lock(&sysfs_mutex);
+ off = filp->f_pos;
for (pos = sysfs_dir_pos(ns, parent_sd, filp->f_pos, pos);
pos;
pos = sysfs_dir_next_pos(ns, parent_sd, filp->f_pos, pos)) {
@@ -1010,19 +1012,24 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
len = strlen(name);
ino = pos->s_ino;
type = dt_type(pos);
- filp->f_pos = ino;
+ off = filp->f_pos = ino;
filp->private_data = sysfs_get(pos);

mutex_unlock(&sysfs_mutex);
- ret = filldir(dirent, name, len, filp->f_pos, ino, type);
+ ret = filldir(dirent, name, len, off, ino, type);
mutex_lock(&sysfs_mutex);
if (ret < 0)
break;
}
mutex_unlock(&sysfs_mutex);
- if ((filp->f_pos > 1) && !pos) { /* EOF */
- filp->f_pos = INT_MAX;
+
+ /* don't reference last entry if its refcount is dropped */
+ if (!pos) {
filp->private_data = NULL;
+
+ /* EOF and not changed as 0 or 1 in read/write path */
+ if (off == filp->f_pos && off > 1)
+ filp->f_pos = INT_MAX;
}
return 0;
}
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 8a297a5..497c6cc 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -42,8 +42,8 @@ struct ipc_namespace {

size_t shm_ctlmax;
size_t shm_ctlall;
+ unsigned long shm_tot;
int shm_ctlmni;
- int shm_tot;
/*
* Defines whether IPC_RMID is forced for _all_ shm segments regardless
* of shmctl()
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 2092ea2..a153ed5 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -470,6 +470,7 @@ struct transaction_s
T_COMMIT,
T_COMMIT_DFLUSH,
T_COMMIT_JFLUSH,
+ T_COMMIT_CALLBACK,
T_FINISHED
} t_state;

@@ -1165,6 +1166,7 @@ int __jbd2_log_start_commit(journal_t *journal, tid_t tid);
int jbd2_journal_start_commit(journal_t *journal, tid_t *tid);
int jbd2_journal_force_commit_nested(journal_t *journal);
int jbd2_log_wait_commit(journal_t *journal, tid_t tid);
+int jbd2_complete_transaction(journal_t *journal, tid_t tid);
int jbd2_log_do_checkpoint(journal_t *journal);
int jbd2_trans_will_send_data_barrier(journal_t *journal, tid_t tid);

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 4baadd1..d0493f6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1509,6 +1509,8 @@ int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr,
unsigned long pfn);
int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
unsigned long pfn);
+int vm_iomap_memory(struct vm_area_struct *vma, phys_addr_t start, unsigned long len);
+

struct page *follow_page(struct vm_area_struct *, unsigned long address,
unsigned int foll_flags);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 00ca32b..8c43fd1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -225,9 +225,9 @@ struct netdev_hw_addr {
#define NETDEV_HW_ADDR_T_SLAVE 3
#define NETDEV_HW_ADDR_T_UNICAST 4
#define NETDEV_HW_ADDR_T_MULTICAST 5
- bool synced;
bool global_use;
int refcount;
+ int synced;
struct rcu_head rcu_head;
};

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index da65890..efe50af 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2367,6 +2367,13 @@ static inline void nf_reset(struct sk_buff *skb)
#endif
}

+static inline void nf_reset_trace(struct sk_buff *skb)
+{
+#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
+ skb->nf_trace = 0;
+#endif
+}
+
/* Note: This doesn't put any conntrack and bridge info in dst. */
static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
{
diff --git a/ipc/shm.c b/ipc/shm.c
index b76be5b..326a20b 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -450,7 +450,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
size_t size = params->u.size;
int error;
struct shmid_kernel *shp;
- int numpages = (size + PAGE_SIZE -1) >> PAGE_SHIFT;
+ size_t numpages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
struct file * file;
char name[13];
int id;
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 31fdc48..0caf1f8 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -608,9 +608,9 @@ void audit_trim_trees(void)
}
spin_unlock(&hash_lock);
trim_marked(tree);
- put_tree(tree);
drop_collected_mounts(root_mnt);
skip_it:
+ put_tree(tree);
mutex_lock(&audit_filter_mutex);
}
list_del(&cursor);
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index c0739f8..d2a01fe 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2029,7 +2029,7 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
if (!group)
return -ENOMEM;
/* pre-allocate to guarantee space while iterating in rcu read-side. */
- retval = flex_array_prealloc(group, 0, group_size - 1, GFP_KERNEL);
+ retval = flex_array_prealloc(group, 0, group_size, GFP_KERNEL);
if (retval)
goto out_free_group_list;

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 7d1f05e..9f21915 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5164,7 +5164,7 @@ static void sw_perf_event_destroy(struct perf_event *event)

static int perf_swevent_init(struct perf_event *event)
{
- int event_id = event->attr.config;
+ u64 event_id = event->attr.config;

if (event->attr.type != PERF_TYPE_SOFTWARE)
return -ENOENT;
@@ -5756,6 +5756,7 @@ skip_type:
if (pmu->pmu_cpu_context)
goto got_cpu_context;

+ ret = -ENOMEM;
pmu->pmu_cpu_context = alloc_percpu(struct perf_cpu_context);
if (!pmu->pmu_cpu_context)
goto free_dev;
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index e4cee8d..60f7e32 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -298,6 +298,10 @@ ktime_t ktime_sub_ns(const ktime_t kt, u64 nsec)
} else {
unsigned long rem = do_div(nsec, NSEC_PER_SEC);

+ /* Make sure nsec fits into long */
+ if (unlikely(nsec > KTIME_SEC_MAX))
+ return (ktime_t){ .tv64 = KTIME_MAX };
+
tmp = ktime_set((long)nsec, rem);
}

@@ -1308,6 +1312,8 @@ retry:

expires = ktime_sub(hrtimer_get_expires(timer),
base->offset);
+ if (expires.tv64 < 0)
+ expires.tv64 = KTIME_MAX;
if (expires.tv64 < expires_next.tv64)
expires_next = expires;
break;
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index cd068b2..c3509fb 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -66,6 +66,8 @@ static void tick_broadcast_start_periodic(struct clock_event_device *bc)
*/
int tick_check_broadcast_device(struct clock_event_device *dev)
{
+ struct clock_event_device *cur = tick_broadcast_device.evtdev;
+
if ((dev->features & CLOCK_EVT_FEAT_DUMMY) ||
(tick_broadcast_device.evtdev &&
tick_broadcast_device.evtdev->rating >= dev->rating) ||
@@ -73,6 +75,8 @@ int tick_check_broadcast_device(struct clock_event_device *dev)
return 0;

clockevents_exchange_device(tick_broadcast_device.evtdev, dev);
+ if (cur)
+ cur->event_handler = clockevents_handle_noop;
tick_broadcast_device.evtdev = dev;
if (!cpumask_empty(tick_get_broadcast_mask()))
tick_broadcast_start_periodic(dev);
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index da6c9ec..ead79bc 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -323,6 +323,7 @@ static void tick_shutdown(unsigned int *cpup)
*/
dev->mode = CLOCK_EVT_MODE_UNUSED;
clockevents_exchange_device(dev, NULL);
+ dev->event_handler = clockevents_handle_noop;
td->evtdev = NULL;
}
raw_spin_unlock_irqrestore(&tick_device_lock, flags);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 5527211..24b3759 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -554,7 +554,7 @@ int ftrace_profile_pages_init(struct ftrace_profile_stat *stat)

pages = DIV_ROUND_UP(functions, PROFILES_PER_PAGE);

- for (i = 0; i < pages; i++) {
+ for (i = 1; i < pages; i++) {
pg->next = (void *)get_zeroed_page(GFP_KERNEL);
if (!pg->next)
goto out_free;
@@ -3303,7 +3303,8 @@ out:
if (fail)
return -EINVAL;

- ftrace_graph_filter_enabled = 1;
+ ftrace_graph_filter_enabled = !!(*idx);
+
return 0;
}

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 17edb14..0ec6c34 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4563,6 +4563,8 @@ static __init int tracer_init_debugfs(void)
trace_access_lock_init();

d_tracer = tracing_init_dentry();
+ if (!d_tracer)
+ return 0;

trace_create_file("tracing_enabled", 0644, d_tracer,
&global_trace, &tracing_ctrl_fops);
@@ -4696,36 +4698,32 @@ void trace_init_global_iter(struct trace_iterator *iter)
iter->cpu_file = TRACE_PIPE_ALL_CPU;
}

-static void
-__ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode)
+void ftrace_dump(enum ftrace_dump_mode oops_dump_mode)
{
- static arch_spinlock_t ftrace_dump_lock =
- (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
/* use static because iter can be a bit big for the stack */
static struct trace_iterator iter;
+ static atomic_t dump_running;
unsigned int old_userobj;
- static int dump_ran;
unsigned long flags;
int cnt = 0, cpu;

- /* only one dump */
- local_irq_save(flags);
- arch_spin_lock(&ftrace_dump_lock);
- if (dump_ran)
- goto out;
-
- dump_ran = 1;
+ /* Only allow one dump user at a time. */
+ if (atomic_inc_return(&dump_running) != 1) {
+ atomic_dec(&dump_running);
+ return;
+ }

+ /*
+ * Always turn off tracing when we dump.
+ * We don't need to show trace output of what happens
+ * between multiple crashes.
+ *
+ * If the user does a sysrq-z, then they can re-enable
+ * tracing with echo 1 > tracing_on.
+ */
tracing_off();

- /* Did function tracer already get disabled? */
- if (ftrace_is_dead()) {
- printk("# WARNING: FUNCTION TRACING IS CORRUPTED\n");
- printk("# MAY BE MISSING FUNCTION EVENTS\n");
- }
-
- if (disable_tracing)
- ftrace_kill();
+ local_irq_save(flags);

trace_init_global_iter(&iter);

@@ -4758,6 +4756,12 @@ __ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode)

printk(KERN_TRACE "Dumping ftrace buffer:\n");

+ /* Did function tracer already get disabled? */
+ if (ftrace_is_dead()) {
+ printk("# WARNING: FUNCTION TRACING IS CORRUPTED\n");
+ printk("# MAY BE MISSING FUNCTION EVENTS\n");
+ }
+
/*
* We need to stop all tracing on all CPUS to read the
* the next buffer. This is a bit expensive, but is
@@ -4796,26 +4800,15 @@ __ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode)
printk(KERN_TRACE "---------------------------------\n");

out_enable:
- /* Re-enable tracing if requested */
- if (!disable_tracing) {
- trace_flags |= old_userobj;
+ trace_flags |= old_userobj;

- for_each_tracing_cpu(cpu) {
- atomic_dec(&iter.tr->data[cpu]->disabled);
- }
- tracing_on();
+ for_each_tracing_cpu(cpu) {
+ atomic_dec(&iter.tr->data[cpu]->disabled);
}
-
- out:
- arch_spin_unlock(&ftrace_dump_lock);
+ atomic_dec(&dump_running);
local_irq_restore(flags);
}
-
-/* By default: disable tracing after the dump */
-void ftrace_dump(enum ftrace_dump_mode oops_dump_mode)
-{
- __ftrace_dump(true, oops_dump_mode);
-}
+EXPORT_SYMBOL_GPL(ftrace_dump);

__init static int tracer_alloc_buffers(void)
{
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 288541f..09fd98a 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -461,8 +461,6 @@ trace_selftest_startup_function(struct tracer *trace, struct trace_array *tr)
/* Maximum number of functions to trace before diagnosing a hang */
#define GRAPH_MAX_FUNC_TEST 100000000

-static void
-__ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode);
static unsigned int graph_hang_thresh;

/* Wrap the real function entry probe to avoid possible hanging */
@@ -472,8 +470,11 @@ static int trace_graph_entry_watchdog(struct ftrace_graph_ent *trace)
if (unlikely(++graph_hang_thresh > GRAPH_MAX_FUNC_TEST)) {
ftrace_graph_stop();
printk(KERN_WARNING "BUG: Function graph tracer hang!\n");
- if (ftrace_dump_on_oops)
- __ftrace_dump(false, DUMP_ALL);
+ if (ftrace_dump_on_oops) {
+ ftrace_dump(DUMP_ALL);
+ /* ftrace_dump() disables tracing */
+ tracing_on();
+ }
return 0;
}

diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 77575b3..c5b20a3 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -17,13 +17,24 @@

#define STACK_TRACE_ENTRIES 500

+#ifdef CC_USING_FENTRY
+# define fentry 1
+#else
+# define fentry 0
+#endif
+
static unsigned long stack_dump_trace[STACK_TRACE_ENTRIES+1] =
{ [0 ... (STACK_TRACE_ENTRIES)] = ULONG_MAX };
static unsigned stack_dump_index[STACK_TRACE_ENTRIES];

+/*
+ * Reserve one entry for the passed in ip. This will allow
+ * us to remove most or all of the stack size overhead
+ * added by the stack tracer itself.
+ */
static struct stack_trace max_stack_trace = {
- .max_entries = STACK_TRACE_ENTRIES,
- .entries = stack_dump_trace,
+ .max_entries = STACK_TRACE_ENTRIES - 1,
+ .entries = &stack_dump_trace[1],
};

static unsigned long max_stack_size;
@@ -37,25 +48,34 @@ static DEFINE_MUTEX(stack_sysctl_mutex);
int stack_tracer_enabled;
static int last_stack_tracer_enabled;

-static inline void check_stack(void)
+static inline void
+check_stack(unsigned long ip, unsigned long *stack)
{
unsigned long this_size, flags;
unsigned long *p, *top, *start;
+ static int tracer_frame;
+ int frame_size = ACCESS_ONCE(tracer_frame);
int i;

- this_size = ((unsigned long)&this_size) & (THREAD_SIZE-1);
+ this_size = ((unsigned long)stack) & (THREAD_SIZE-1);
this_size = THREAD_SIZE - this_size;
+ /* Remove the frame of the tracer */
+ this_size -= frame_size;

if (this_size <= max_stack_size)
return;

/* we do not handle interrupt stacks yet */
- if (!object_is_on_stack(&this_size))
+ if (!object_is_on_stack(stack))
return;

local_irq_save(flags);
arch_spin_lock(&max_stack_lock);

+ /* In case another CPU set the tracer_frame on us */
+ if (unlikely(!frame_size))
+ this_size -= tracer_frame;
+
/* a race could have already updated it */
if (this_size <= max_stack_size)
goto out;
@@ -68,10 +88,18 @@ static inline void check_stack(void)
save_stack_trace(&max_stack_trace);

/*
+ * Add the passed in ip from the function tracer.
+ * Searching for this on the stack will skip over
+ * most of the overhead from the stack tracer itself.
+ */
+ stack_dump_trace[0] = ip;
+ max_stack_trace.nr_entries++;
+
+ /*
* Now find where in the stack these are.
*/
i = 0;
- start = &this_size;
+ start = stack;
top = (unsigned long *)
(((unsigned long)start & ~(THREAD_SIZE-1)) + THREAD_SIZE);

@@ -95,6 +123,18 @@ static inline void check_stack(void)
found = 1;
/* Start the search from here */
start = p + 1;
+ /*
+ * We do not want to show the overhead
+ * of the stack tracer stack in the
+ * max stack. If we haven't figured
+ * out what that is, then figure it out
+ * now.
+ */
+ if (unlikely(!tracer_frame) && i == 1) {
+ tracer_frame = (p - stack) *
+ sizeof(unsigned long);
+ max_stack_size -= tracer_frame;
+ }
}
}

@@ -110,6 +150,7 @@ static inline void check_stack(void)
static void
stack_trace_call(unsigned long ip, unsigned long parent_ip)
{
+ unsigned long stack;
int cpu;

if (unlikely(!ftrace_enabled || stack_trace_disabled))
@@ -122,7 +163,26 @@ stack_trace_call(unsigned long ip, unsigned long parent_ip)
if (per_cpu(trace_active, cpu)++ != 0)
goto out;

- check_stack();
+ /*
+ * When fentry is used, the traced function does not get
+ * its stack frame set up, and we lose the parent.
+ * The ip is pretty useless because the function tracer
+ * was called before that function set up its stack frame.
+ * In this case, we use the parent ip.
+ *
+ * By adding the return address of either the parent ip
+ * or the current ip we can disregard most of the stack usage
+ * caused by the stack tracer itself.
+ *
+ * The function tracer always reports the address of where the
+ * mcount call was, but the stack will hold the return address.
+ */
+ if (fentry)
+ ip = parent_ip;
+ else
+ ip += MCOUNT_INSN_SIZE;
+
+ check_stack(ip, &stack);

out:
per_cpu(trace_active, cpu)--;
@@ -351,6 +411,8 @@ static __init int stack_trace_init(void)
struct dentry *d_tracer;

d_tracer = tracing_init_dentry();
+ if (!d_tracer)
+ return 0;

trace_create_file("stack_max_size", 0644, d_tracer,
&max_stack_size, &stack_max_size_fops);
diff --git a/kernel/trace/trace_stat.c b/kernel/trace/trace_stat.c
index 96cffb2..847f88a 100644
--- a/kernel/trace/trace_stat.c
+++ b/kernel/trace/trace_stat.c
@@ -307,6 +307,8 @@ static int tracing_stat_init(void)
struct dentry *d_tracing;

d_tracing = tracing_init_dentry();
+ if (!d_tracing)
+ return 0;

stat_dir = debugfs_create_dir("trace_stat", d_tracing);
if (!stat_dir)
diff --git a/mm/memory.c b/mm/memory.c
index 4f2add1..d5f913b 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2309,6 +2309,53 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
}
EXPORT_SYMBOL(remap_pfn_range);

+/**
+ * vm_iomap_memory - remap memory to userspace
+ * @vma: user vma to map to
+ * @start: start of area
+ * @len: size of area
+ *
+ * This is a simplified io_remap_pfn_range() for common driver use. The
+ * driver just needs to give us the physical memory range to be mapped,
+ * we'll figure out the rest from the vma information.
+ *
+ * NOTE! Some drivers might want to tweak vma->vm_page_prot first to get
+ * whatever write-combining details or similar.
+ */
+int vm_iomap_memory(struct vm_area_struct *vma, phys_addr_t start, unsigned long len)
+{
+ unsigned long vm_len, pfn, pages;
+
+ /* Check that the physical memory area passed in looks valid */
+ if (start + len < start)
+ return -EINVAL;
+ /*
+ * You *really* shouldn't map things that aren't page-aligned,
+ * but we've historically allowed it because IO memory might
+ * just have smaller alignment.
+ */
+ len += start & ~PAGE_MASK;
+ pfn = start >> PAGE_SHIFT;
+ pages = (len + ~PAGE_MASK) >> PAGE_SHIFT;
+ if (pfn + pages < pfn)
+ return -EINVAL;
+
+ /* We start the mapping 'vm_pgoff' pages into the area */
+ if (vma->vm_pgoff > pages)
+ return -EINVAL;
+ pfn += vma->vm_pgoff;
+ pages -= vma->vm_pgoff;
+
+ /* Can we fit all of the mapping? */
+ vm_len = vma->vm_end - vma->vm_start;
+ if (vm_len >> PAGE_SHIFT > pages)
+ return -EINVAL;
+
+ /* Ok, let it rip */
+ return io_remap_pfn_range(vma, vma->vm_start, pfn, vm_len, vma->vm_page_prot);
+}
+EXPORT_SYMBOL(vm_iomap_memory);
+
static int apply_to_pte_range(struct mm_struct *mm, pmd_t *pmd,
unsigned long addr, unsigned long end,
pte_fn_t fn, void *data)
diff --git a/net/atm/common.c b/net/atm/common.c
index 0ca06e8..43b6bfe 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -500,6 +500,8 @@ int vcc_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
struct sk_buff *skb;
int copied, error = -EINVAL;

+ msg->msg_namelen = 0;
+
if (sock->state != SS_CONNECTED)
return -ENOTCONN;
if (flags & ~MSG_DONTWAIT) /* only handle MSG_DONTWAIT */
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index b04a6ef..86ac37f 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1641,6 +1641,7 @@ static int ax25_recvmsg(struct kiocb *iocb, struct socket *sock,
ax25_address src;
const unsigned char *mac = skb_mac_header(skb);

+ memset(sax, 0, sizeof(struct full_sockaddr_ax25));
ax25_addr_parse(mac + 1, skb->data - mac - 1, &src, NULL,
&digi, NULL, NULL);
sax->sax25_family = AF_AX25;
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 062124c..838f113 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -245,6 +245,8 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
if (flags & (MSG_OOB))
return -EOPNOTSUPP;

+ msg->msg_namelen = 0;
+
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (!skb) {
if (sk->sk_shutdown & RCV_SHUTDOWN)
@@ -252,8 +254,6 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
return err;
}

- msg->msg_namelen = 0;
-
copied = skb->len;
if (len < copied) {
msg->msg_flags |= MSG_TRUNC;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 14c4864..82ce164 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -627,6 +627,7 @@ static int rfcomm_sock_recvmsg(struct kiocb *iocb, struct socket *sock,

if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
rfcomm_dlc_accept(d);
+ msg->msg_namelen = 0;
return 0;
}

diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index a986280..53a8e37 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -320,6 +320,8 @@ static int caif_seqpkt_recvmsg(struct kiocb *iocb, struct socket *sock,
if (m->msg_flags&MSG_OOB)
goto read_error;

+ m->msg_namelen = 0;
+
skb = skb_recv_datagram(sk, flags, 0 , &ret);
if (!skb)
goto read_error;
diff --git a/net/core/dev.c b/net/core/dev.c
index 720aea0..8e455b8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1619,6 +1619,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
skb->mark = 0;
secpath_reset(skb);
nf_reset(skb);
+ nf_reset_trace(skb);
return netif_rx(skb);
}
EXPORT_SYMBOL_GPL(dev_forward_skb);
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 0387da0..cd09414 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -57,7 +57,7 @@ static int __hw_addr_add_ex(struct netdev_hw_addr_list *list,
ha->type = addr_type;
ha->refcount = 1;
ha->global_use = global;
- ha->synced = false;
+ ha->synced = 0;
list_add_tail_rcu(&ha->list, &list->list);
list->count++;
return 0;
@@ -155,7 +155,7 @@ int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
addr_len, ha->type);
if (err)
break;
- ha->synced = true;
+ ha->synced++;
ha->refcount++;
} else if (ha->refcount == 1) {
__hw_addr_del(to_list, ha->addr, addr_len, ha->type);
@@ -176,7 +176,7 @@ void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
if (ha->synced) {
__hw_addr_del(to_list, ha->addr,
addr_len, ha->type);
- ha->synced = false;
+ ha->synced--;
__hw_addr_del(from_list, ha->addr,
addr_len, ha->type);
}
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 3b5e680..5b7d5f2 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1064,7 +1064,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
rcu_read_lock();
cb->seq = net->dev_base_seq;

- if (nlmsg_parse(cb->nlh, sizeof(struct rtgenmsg), tb, IFLA_MAX,
+ if (nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
ifla_policy) >= 0) {

if (tb[IFLA_EXT_MASK])
@@ -1907,7 +1907,7 @@ static u16 rtnl_calcit(struct sk_buff *skb, struct nlmsghdr *nlh)
u32 ext_filter_mask = 0;
u16 min_ifinfo_dump_size = 0;

- if (nlmsg_parse(nlh, sizeof(struct rtgenmsg), tb, IFLA_MAX,
+ if (nlmsg_parse(nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
ifla_policy) >= 0) {
if (tb[IFLA_EXT_MASK])
ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 530787b..238fc3b 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -137,8 +137,6 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)

/* skb is pure payload to encrypt */

- err = -ENOMEM;
-
esp = x->data;
aead = esp->aead;
alen = crypto_aead_authsize(aead);
@@ -174,8 +172,10 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
}

tmp = esp_alloc_tmp(aead, nfrags + sglists, seqhilen);
- if (!tmp)
+ if (!tmp) {
+ err = -ENOMEM;
goto error;
+ }

seqhi = esp_tmp_seqhi(tmp);
iv = esp_tmp_iv(aead, tmp, seqhilen);
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index b2cfe83..8f441b2 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -251,8 +251,7 @@ static void ip_expire(unsigned long arg)
if (!head->dev)
goto out_rcu_unlock;

- /* skb dst is stale, drop it, and perform route lookup again */
- skb_dst_drop(head);
+ /* skb has no dst, perform route lookup again */
iph = ip_hdr(head);
err = ip_route_input_noref(head, iph->daddr, iph->saddr,
iph->tos, head->dev);
@@ -518,8 +517,16 @@ found:
qp->q.last_in |= INET_FRAG_FIRST_IN;

if (qp->q.last_in == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&
- qp->q.meat == qp->q.len)
- return ip_frag_reasm(qp, prev, dev);
+ qp->q.meat == qp->q.len) {
+ unsigned long orefdst = skb->_skb_refdst;
+
+ skb->_skb_refdst = 0UL;
+ err = ip_frag_reasm(qp, prev, dev);
+ skb->_skb_refdst = orefdst;
+ return err;
+ }
+
+ skb_dst_drop(skb);

write_lock(&ip4_frags.lock);
list_move_tail(&qp->q.lru_list, &qp->q.net->lru_list);
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 769c0e9..8a1bed2 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -347,8 +347,8 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
* hasn't changed since we received the original syn, but I see
* no easy way to do this.
*/
- flowi4_init_output(&fl4, 0, sk->sk_mark, RT_CONN_FLAGS(sk),
- RT_SCOPE_UNIVERSE, IPPROTO_TCP,
+ flowi4_init_output(&fl4, sk->sk_bound_dev_if, sk->sk_mark,
+ RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE, IPPROTO_TCP,
inet_sk_flowi_flags(sk),
(opt && opt->srr) ? opt->faddr : ireq->rmt_addr,
ireq->loc_addr, th->source, th->dest);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 3124e17..872b41d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -115,6 +115,7 @@ int sysctl_tcp_abc __read_mostly;
#define FLAG_DSACKING_ACK 0x800 /* SACK blocks contained D-SACK info */
#define FLAG_NONHEAD_RETRANS_ACKED 0x1000 /* Non-head rexmitted data was ACKed */
#define FLAG_SACK_RENEGING 0x2000 /* snd_una advanced to a sacked seq */
+#define FLAG_UPDATE_TS_RECENT 0x4000 /* tcp_replace_ts_recent() */

#define FLAG_ACKED (FLAG_DATA_ACKED|FLAG_SYN_ACKED)
#define FLAG_NOT_DUP (FLAG_DATA|FLAG_WIN_UPDATE|FLAG_ACKED)
@@ -3723,6 +3724,27 @@ static void tcp_send_challenge_ack(struct sock *sk)
}
}

+static void tcp_store_ts_recent(struct tcp_sock *tp)
+{
+ tp->rx_opt.ts_recent = tp->rx_opt.rcv_tsval;
+ tp->rx_opt.ts_recent_stamp = get_seconds();
+}
+
+static void tcp_replace_ts_recent(struct tcp_sock *tp, u32 seq)
+{
+ if (tp->rx_opt.saw_tstamp && !after(seq, tp->rcv_wup)) {
+ /* PAWS bug workaround wrt. ACK frames, the PAWS discard
+ * extra check below makes sure this can only happen
+ * for pure ACK frames. -DaveM
+ *
+ * Not only, also it occurs for expired timestamps.
+ */
+
+ if (tcp_paws_check(&tp->rx_opt, 0))
+ tcp_store_ts_recent(tp);
+ }
+}
+
/* This routine deals with incoming acks, but not outgoing ones. */
static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
{
@@ -3771,6 +3793,12 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
prior_fackets = tp->fackets_out;
prior_in_flight = tcp_packets_in_flight(tp);

+ /* ts_recent update must be made after we are sure that the packet
+ * is in window.
+ */
+ if (flag & FLAG_UPDATE_TS_RECENT)
+ tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
+
if (!(flag & FLAG_SLOWPATH) && after(ack, prior_snd_una)) {
/* Window is constant, pure forward advance.
* No more checks are required.
@@ -4061,27 +4089,6 @@ const u8 *tcp_parse_md5sig_option(const struct tcphdr *th)
EXPORT_SYMBOL(tcp_parse_md5sig_option);
#endif

-static inline void tcp_store_ts_recent(struct tcp_sock *tp)
-{
- tp->rx_opt.ts_recent = tp->rx_opt.rcv_tsval;
- tp->rx_opt.ts_recent_stamp = get_seconds();
-}
-
-static inline void tcp_replace_ts_recent(struct tcp_sock *tp, u32 seq)
-{
- if (tp->rx_opt.saw_tstamp && !after(seq, tp->rcv_wup)) {
- /* PAWS bug workaround wrt. ACK frames, the PAWS discard
- * extra check below makes sure this can only happen
- * for pure ACK frames. -DaveM
- *
- * Not only, also it occurs for expired timestamps.
- */
-
- if (tcp_paws_check(&tp->rx_opt, 0))
- tcp_store_ts_recent(tp);
- }
-}
-
/* Sorry, PAWS as specified is broken wrt. pure-ACKs -DaveM
*
* It is not fatal. If this ACK does _not_ change critical state (seqs, window)
@@ -5552,14 +5559,10 @@ slow_path:
return 0;

step5:
- if (th->ack && tcp_ack(sk, skb, FLAG_SLOWPATH) < 0)
+ if (th->ack &&
+ tcp_ack(sk, skb, FLAG_SLOWPATH | FLAG_UPDATE_TS_RECENT) < 0)
goto discard;

- /* ts_recent update must be made after we are sure that the packet
- * is in window.
- */
- tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
-
tcp_rcv_rtt_measure_ts(sk, skb);

/* Process urgent data. */
@@ -5923,7 +5926,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,

/* step 5: check the ACK field */
if (th->ack) {
- int acceptable = tcp_ack(sk, skb, FLAG_SLOWPATH) > 0;
+ int acceptable = tcp_ack(sk, skb, FLAG_SLOWPATH |
+ FLAG_UPDATE_TS_RECENT) > 0;

switch (sk->sk_state) {
case TCP_SYN_RECV:
@@ -6030,11 +6034,6 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
} else
goto discard;

- /* ts_recent update must be made after we are sure that the packet
- * is in window.
- */
- tcp_replace_ts_recent(tp, TCP_SKB_CB(skb)->seq);
-
/* step 6: check the URG bit */
tcp_urg(sk, skb, th);

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 8589c2d..d84033b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2404,6 +2404,9 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
static void init_loopback(struct net_device *dev)
{
struct inet6_dev *idev;
+ struct net_device *sp_dev;
+ struct inet6_ifaddr *sp_ifa;
+ struct rt6_info *sp_rt;

/* ::1 */

@@ -2415,6 +2418,30 @@ static void init_loopback(struct net_device *dev)
}

add_addr(idev, &in6addr_loopback, 128, IFA_HOST);
+
+ /* Add routes to other interface's IPv6 addresses */
+ for_each_netdev(dev_net(dev), sp_dev) {
+ if (!strcmp(sp_dev->name, dev->name))
+ continue;
+
+ idev = __in6_dev_get(sp_dev);
+ if (!idev)
+ continue;
+
+ read_lock_bh(&idev->lock);
+ list_for_each_entry(sp_ifa, &idev->addr_list, if_list) {
+
+ if (sp_ifa->flags & (IFA_F_DADFAILED | IFA_F_TENTATIVE))
+ continue;
+
+ sp_rt = addrconf_dst_alloc(idev, &sp_ifa->addr, 0);
+
+ /* Failure cases are ignored */
+ if (!IS_ERR(sp_rt))
+ ip6_ins_rt(sp_rt);
+ }
+ read_unlock_bh(&idev->lock);
+ }
}

static void addrconf_add_linklocal(struct inet6_dev *idev, const struct in6_addr *addr)
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 2b0a4ca..411fe2c 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -386,8 +386,17 @@ found:
}

if (fq->q.last_in == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&
- fq->q.meat == fq->q.len)
- return ip6_frag_reasm(fq, prev, dev);
+ fq->q.meat == fq->q.len) {
+ int res;
+ unsigned long orefdst = skb->_skb_refdst;
+
+ skb->_skb_refdst = 0UL;
+ res = ip6_frag_reasm(fq, prev, dev);
+ skb->_skb_refdst = orefdst;
+ return res;
+ }
+
+ skb_dst_drop(skb);

write_lock(&ip6_frags.lock);
list_move_tail(&fq->q.lru_list, &fq->q.net->lru_list);
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index f4b49c5..91821e9 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -1386,6 +1386,8 @@ static int irda_recvmsg_dgram(struct kiocb *iocb, struct socket *sock,

IRDA_DEBUG(4, "%s()\n", __func__);

+ msg->msg_namelen = 0;
+
skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT,
flags & MSG_DONTWAIT, &err);
if (!skb)
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index cf98d62..e836140 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1356,6 +1356,8 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
int blen;
int err = 0;

+ msg->msg_namelen = 0;
+
if ((sk->sk_state == IUCV_DISCONN || sk->sk_state == IUCV_SEVERED) &&
skb_queue_empty(&iucv->backlog_skb_q) &&
skb_queue_empty(&sk->sk_receive_queue) &&
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 99a60d5..e5565c7 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -720,6 +720,8 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock,
int target; /* Read at least this many bytes */
long timeo;

+ msg->msg_namelen = 0;
+
lock_sock(sk);
copied = -ENOTCONN;
if (unlikely(sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_LISTEN))
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index f156382..3df7c5a 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1178,6 +1178,7 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock,
}

if (sax != NULL) {
+ memset(sax, 0, sizeof(*sax));
sax->sax25_family = AF_NETROM;
skb_copy_from_linear_data_offset(skb, 7, sax->sax25_call.ax25_call,
AX25_ADDR_LEN);
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index f9ea925..1f96fb9 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1258,6 +1258,7 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock,
skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);

if (srose != NULL) {
+ memset(srose, 0, msg->msg_namelen);
srose->srose_family = AF_ROSE;
srose->srose_addr = rose->dest_addr;
srose->srose_call = rose->dest_call;
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 599f67a..b7cddb9 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -963,8 +963,11 @@ cbq_dequeue(struct Qdisc *sch)
cbq_update(q);
if ((incr -= incr2) < 0)
incr = 0;
+ q->now += incr;
+ } else {
+ if (now > q->now)
+ q->now = now;
}
- q->now += incr;
q->now_rt = now;

for (;;) {
diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index bf81204..333926d 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -71,7 +71,7 @@ void sctp_auth_key_put(struct sctp_auth_bytes *key)
return;

if (atomic_dec_and_test(&key->refcnt)) {
- kfree(key);
+ kzfree(key);
SCTP_DBG_OBJCNT_DEC(keys);
}
}
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 42b8324..fdf34af 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -829,6 +829,7 @@ static void set_orig_addr(struct msghdr *m, struct tipc_msg *msg)
if (addr) {
addr->family = AF_TIPC;
addr->addrtype = TIPC_ADDR_ID;
+ memset(&addr->addr, 0, sizeof(addr->addr));
addr->addr.id.ref = msg_origport(msg);
addr->addr.id.node = msg_orignode(msg);
addr->addr.name.domain = 0; /* could leave uninitialized */
@@ -948,6 +949,9 @@ static int recv_msg(struct kiocb *iocb, struct socket *sock,
goto exit;
}

+ /* will be updated in set_orig_addr() if needed */
+ m->msg_namelen = 0;
+
timeout = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
restart:

@@ -1074,6 +1078,9 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock,
goto exit;
}

+ /* will be updated in set_orig_addr() if needed */
+ m->msg_namelen = 0;
+
target = sock_rcvlowat(sk, flags & MSG_WAITALL, buf_len);
timeout = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
restart:
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 18978b6..5611563 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1956,7 +1956,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
if ((UNIXCB(skb).pid != siocb->scm->pid) ||
(UNIXCB(skb).cred != siocb->scm->cred))
break;
- } else {
+ } else if (test_bit(SOCK_PASSCRED, &sock->flags)) {
/* Copy credentials */
scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).cred);
check_creds = 1;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 0b08905..21958cd 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -853,7 +853,7 @@ static void handle_channel(struct wiphy *wiphy,
return;

REG_DBG_PRINT("Disabling freq %d MHz\n", chan->center_freq);
- chan->flags = IEEE80211_CHAN_DISABLED;
+ chan->flags |= IEEE80211_CHAN_DISABLED;
return;
}

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 7ada40e..638600b 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3204,18 +3204,10 @@ EXPORT_SYMBOL_GPL(snd_pcm_lib_default_mmap);
int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream,
struct vm_area_struct *area)
{
- long size;
- unsigned long offset;
+ struct snd_pcm_runtime *runtime = substream->runtime;;

area->vm_page_prot = pgprot_noncached(area->vm_page_prot);
- area->vm_flags |= VM_IO;
- size = area->vm_end - area->vm_start;
- offset = area->vm_pgoff << PAGE_SHIFT;
- if (io_remap_pfn_range(area, area->vm_start,
- (substream->runtime->dma_addr + offset) >> PAGE_SHIFT,
- size, area->vm_page_prot))
- return -EAGAIN;
- return 0;
+ return vm_iomap_memory(area, runtime->dma_addr, runtime->dma_bytes);
}

EXPORT_SYMBOL(snd_pcm_lib_mmap_iomem);
diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index ebbf63c..b7cf246 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -2007,7 +2007,7 @@ static int max98088_probe(struct snd_soc_codec *codec)
ret);
goto err_access;
}
- dev_info(codec->dev, "revision %c\n", ret + 'A');
+ dev_info(codec->dev, "revision %c\n", ret - 0x40 + 'A');

snd_soc_write(codec, M98088_REG_51_PWR_SYS, M98088_PWRSV);

diff --git a/sound/usb/card.c b/sound/usb/card.c
index 566acb3..acb7fac 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -611,7 +611,9 @@ int snd_usb_autoresume(struct snd_usb_audio *chip)
int err = -ENODEV;

down_read(&chip->shutdown_rwsem);
- if (!chip->shutdown && !chip->probing)
+ if (chip->probing)
+ err = 0;
+ else if (!chip->shutdown)
err = usb_autopm_get_interface(chip->pm_intf);
up_read(&chip->shutdown_rwsem);

diff --git a/sound/usb/card.h b/sound/usb/card.h
index 665e297..2b7559c 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -73,6 +73,7 @@ struct snd_usb_substream {
unsigned int fill_max: 1; /* fill max packet size always */
unsigned int txfr_quirk:1; /* allow sub-frame alignment */
unsigned int fmt_type; /* USB audio format type (1-3) */
+ unsigned int pkt_offset_adj; /* Bytes to drop from beginning of packets (for non-compliant devices) */

unsigned int running: 1; /* running status */

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 9ab2b3e..5ebe8c4 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -458,7 +458,7 @@ static int retire_capture_urb(struct snd_usb_substream *subs,
stride = runtime->frame_bits >> 3;

for (i = 0; i < urb->number_of_packets; i++) {
- cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset;
+ cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset + subs->pkt_offset_adj;
if (urb->iso_frame_desc[i].status && printk_ratelimit()) {
snd_printdd("frame %d active: %d\n", i, urb->iso_frame_desc[i].status);
// continue;
@@ -898,6 +898,7 @@ void snd_usb_init_substream(struct snd_usb_stream *as,
subs->speed = snd_usb_get_speed(subs->dev);
if (subs->speed >= USB_SPEED_HIGH)
subs->ops.prepare_sync = prepare_capture_sync_urb_hs;
+ subs->pkt_offset_adj = 0;

snd_usb_set_pcm_ops(as->pcm, stream);

diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 34b9bb7..e5fee18 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -126,7 +126,6 @@ struct snd_usb_midi {
struct snd_usb_midi_in_endpoint *in;
} endpoints[MIDI_MAX_ENDPOINTS];
unsigned long input_triggered;
- bool autopm_reference;
unsigned int opened[2];
unsigned char disconnected;
unsigned char input_running;
@@ -1040,7 +1039,6 @@ static int substream_open(struct snd_rawmidi_substream *substream, int dir,
{
struct snd_usb_midi* umidi = substream->rmidi->private_data;
struct snd_kcontrol *ctl;
- int err;

down_read(&umidi->disc_rwsem);
if (umidi->disconnected) {
@@ -1051,13 +1049,6 @@ static int substream_open(struct snd_rawmidi_substream *substream, int dir,
mutex_lock(&umidi->mutex);
if (open) {
if (!umidi->opened[0] && !umidi->opened[1]) {
- err = usb_autopm_get_interface(umidi->iface);
- umidi->autopm_reference = err >= 0;
- if (err < 0 && err != -EACCES) {
- mutex_unlock(&umidi->mutex);
- up_read(&umidi->disc_rwsem);
- return -EIO;
- }
if (umidi->roland_load_ctl) {
ctl = umidi->roland_load_ctl;
ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
@@ -1080,8 +1071,6 @@ static int substream_open(struct snd_rawmidi_substream *substream, int dir,
snd_ctl_notify(umidi->card,
SNDRV_CTL_EVENT_MASK_INFO, &ctl->id);
}
- if (umidi->autopm_reference)
- usb_autopm_put_interface(umidi->iface);
}
}
mutex_unlock(&umidi->mutex);
@@ -2256,6 +2245,8 @@ int snd_usbmidi_create(struct snd_card *card,
return err;
}

+ usb_autopm_get_interface_no_resume(umidi->iface);
+
list_add_tail(&umidi->list, midi_list);
return 0;
}
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index dfbd65d..42eeee8 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -744,6 +744,7 @@ static void set_format_emu_quirk(struct snd_usb_substream *subs,
break;
}
snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id);
+ subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0;
}

void snd_usb_set_format_quirk(struct snd_usb_substream *subs,
diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index 5ff8010..33a335b 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -168,6 +168,14 @@ static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip,
if (!csep && altsd->bNumEndpoints >= 2)
csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);

+ /*
+ * If we can't locate the USB_DT_CS_ENDPOINT descriptor in the extra
+ * bytes after the first endpoint, go search the entire interface.
+ * Some devices have it directly *before* the standard endpoint.
+ */
+ if (!csep)
+ csep = snd_usb_find_desc(alts->extra, alts->extralen, NULL, USB_DT_CS_ENDPOINT);
+
if (!csep || csep->bLength < 7 ||
csep->bDescriptorSubtype != UAC_EP_GENERAL) {
snd_printk(KERN_WARNING "%d:%u:%d : no or invalid"

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 828 bytes --]