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-rw-r--r--arch/arm/kernel/elf.c4
-rw-r--r--arch/arm/kernel/entry-armv.S1
-rw-r--r--arch/arm/kernel/entry-common.S2
-rw-r--r--arch/arm/kernel/irq.c2
-rw-r--r--arch/arm/kernel/machine_kexec.c4
-rw-r--r--arch/arm/kernel/setup.c13
6 files changed, 14 insertions, 12 deletions
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 84849098c8e8..d4a0da1e48f4 100644
--- a/arch/arm/kernel/elf.c
+++ b/arch/arm/kernel/elf.c
@@ -74,9 +74,9 @@ EXPORT_SYMBOL(elf_set_personality);
*/
int arm_elf_read_implies_exec(const struct elf32_hdr *x, int executable_stack)
{
- if (executable_stack != EXSTACK_ENABLE_X)
+ if (executable_stack != EXSTACK_DISABLE_X)
return 1;
- if (cpu_architecture() <= CPU_ARCH_ARMv6)
+ if (cpu_architecture() < CPU_ARCH_ARMv6)
return 1;
return 0;
}
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 77b047475539..85040cfeb5e5 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -650,6 +650,7 @@ ENTRY(fp_enter)
no_fp: mov pc, lr
__und_usr_unknown:
+ enable_irq
mov r0, sp
adr lr, ret_from_exception
b do_undefinstr
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 06269ea375c5..49a6ba926c2b 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -136,7 +136,7 @@ ENTRY(mcount)
ldmia sp!, {r0-r3, pc}
trace:
- ldr r1, [fp, #-4]
+ ldr r1, [fp, #-4] @ lr of instrumented routine
mov r0, lr
sub r0, r0, #MCOUNT_INSN_SIZE
mov lr, pc
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 7141cee1fab7..363db186cb93 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -101,7 +101,7 @@ unlock:
/* Handle bad interrupts */
static struct irq_desc bad_irq_desc = {
.handle_irq = handle_bad_irq,
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(bad_irq_desc.lock),
};
/*
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index 440dc62cdc3a..598ca61e7bca 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -13,8 +13,8 @@
#include <asm/cacheflush.h>
#include <asm/mach-types.h>
-const extern unsigned char relocate_new_kernel[];
-const extern unsigned int relocate_new_kernel_size;
+extern const unsigned char relocate_new_kernel[];
+extern const unsigned int relocate_new_kernel_size;
extern void setup_mm_for_reboot(char mode);
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 7049815d66d5..68d6494c0389 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -233,12 +233,13 @@ static void __init cacheid_init(void)
unsigned int cachetype = read_cpuid_cachetype();
unsigned int arch = cpu_architecture();
- if (arch >= CPU_ARCH_ARMv7) {
- cacheid = CACHEID_VIPT_NONALIASING;
- if ((cachetype & (3 << 14)) == 1 << 14)
- cacheid |= CACHEID_ASID_TAGGED;
- } else if (arch >= CPU_ARCH_ARMv6) {
- if (cachetype & (1 << 23))
+ if (arch >= CPU_ARCH_ARMv6) {
+ if ((cachetype & (7 << 29)) == 4 << 29) {
+ /* ARMv7 register format */
+ cacheid = CACHEID_VIPT_NONALIASING;
+ if ((cachetype & (3 << 14)) == 1 << 14)
+ cacheid |= CACHEID_ASID_TAGGED;
+ } else if (cachetype & (1 << 23))
cacheid = CACHEID_VIPT_ALIASING;
else
cacheid = CACHEID_VIPT_NONALIASING;