5 files changed, 22 insertions, 4 deletions

diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index 63a481fbbed4..338ff19ae447 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -84,7 +84,7 @@ ____atomic_test_and_set_bit(unsigned int bit, volatile unsigned long *p)
         *p = res | mask;
         raw_local_irq_restore(flags);
 
-        return res & mask;
+        return (res & mask) != 0;
 }
 
 static inline int
@@ -101,7 +101,7 @@ ____atomic_test_and_clear_bit(unsigned int bit, volatile unsigned long *p)
         *p = res & ~mask;
         raw_local_irq_restore(flags);
 
-        return res & mask;
+        return (res & mask) != 0;
 }
 
 static inline int
@@ -118,7 +118,7 @@ ____atomic_test_and_change_bit(unsigned int bit, volatile unsigned long *p)
         *p = res ^ mask;
         raw_local_irq_restore(flags);
 
-        return res & mask;
+        return (res & mask) != 0;
 }
 
 #include <asm-generic/bitops/non-atomic.h>
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index fd03fb63a332..3d0cdd21b882 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -414,9 +414,14 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
 
 static inline void __flush_icache_all(void)
 {
+#ifdef CONFIG_ARM_ERRATA_411920
+        extern void v6_icache_inval_all(void);
+        v6_icache_inval_all();
+#else
         asm("mcr        p15, 0, %0, c7, c5, 0   @ invalidate I-cache\n"
             :
             : "r" (0));
+#endif
 }
 
 #define ARCH_HAS_FLUSH_ANON_PAGE
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index c3b911ee9151..6aac3f5bb2f3 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -98,6 +98,9 @@ extern int elf_check_arch(const struct elf32_hdr *);
 extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
 #define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)
 
+int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
+#define ELF_CORE_COPY_TASK_REGS dump_task_regs
+
 #define USE_ELF_CORE_DUMP
 #define ELF_EXEC_PAGESIZE       4096
 
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index a45ab5dd8255..c2f1605de359 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -350,7 +350,7 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
         if (tlb_flag(TLB_WB))
                 dsb();
 
-        if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) {
+        if (cpumask_test_cpu(get_cpu(), mm_cpumask(mm))) {
                 if (tlb_flag(TLB_V3_FULL))
                         asm("mcr p15, 0, %0, c6, c0, 0" : : "r" (zero) : "cc");
                 if (tlb_flag(TLB_V4_U_FULL))
@@ -360,6 +360,7 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
                 if (tlb_flag(TLB_V4_I_FULL))
                         asm("mcr p15, 0, %0, c8, c5, 0" : : "r" (zero) : "cc");
         }
+        put_cpu();
 
         if (tlb_flag(TLB_V6_U_ASID))
                 asm("mcr p15, 0, %0, c8, c7, 2" : : "r" (asid) : "cc");
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 7020217fc49f..4e506d09e5f9 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -403,6 +403,15 @@
 #define __ARM_NR_set_tls                (__ARM_NR_BASE+5)
 
 /*
+ * *NOTE*: This is a ghost syscall private to the kernel.  Only the
+ * __kuser_cmpxchg code in entry-armv.S should be aware of its
+ * existence.  Don't ever use this from user code.
+ */
+#ifdef __KERNEL__
+#define __ARM_NR_cmpxchg                (__ARM_NR_BASE+0x00fff0)
+#endif
+
+/*
  * The following syscalls are obsolete and no longer available for EABI.
  */
 #if defined(__ARM_EABI__) && !defined(__KERNEL__)