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-rw-r--r--arch/arm/kernel/elf.c4
-rw-r--r--arch/arm/kernel/entry-common.S4
-rw-r--r--arch/arm/kernel/fiq.c4
-rw-r--r--arch/arm/kernel/setup.c13
4 files changed, 15 insertions, 10 deletions
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 84849098c8e..d4a0da1e48f 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-common.S b/arch/arm/kernel/entry-common.S
index 49a6ba926c2..159d0416f27 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -111,6 +111,7 @@ ENTRY(mcount)
.globl mcount_call
mcount_call:
bl ftrace_stub
+ ldr lr, [fp, #-4] @ restore lr
ldmia sp!, {r0-r3, pc}
ENTRY(ftrace_caller)
@@ -122,6 +123,7 @@ ENTRY(ftrace_caller)
.globl ftrace_call
ftrace_call:
bl ftrace_stub
+ ldr lr, [fp, #-4] @ restore lr
ldmia sp!, {r0-r3, pc}
#else
@@ -133,6 +135,7 @@ ENTRY(mcount)
adr r0, ftrace_stub
cmp r0, r2
bne trace
+ ldr lr, [fp, #-4] @ restore lr
ldmia sp!, {r0-r3, pc}
trace:
@@ -141,6 +144,7 @@ trace:
sub r0, r0, #MCOUNT_INSN_SIZE
mov lr, pc
mov pc, r2
+ mov lr, r1 @ restore lr
ldmia sp!, {r0-r3, pc}
#endif /* CONFIG_DYNAMIC_FTRACE */
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index 36f81d96797..6ff7919613d 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -88,7 +88,7 @@ void set_fiq_handler(void *start, unsigned int length)
* disable irqs for the duration. Note - these functions are almost
* entirely coded in assembly.
*/
-void __attribute__((naked)) set_fiq_regs(struct pt_regs *regs)
+void __naked set_fiq_regs(struct pt_regs *regs)
{
register unsigned long tmp;
asm volatile (
@@ -106,7 +106,7 @@ void __attribute__((naked)) set_fiq_regs(struct pt_regs *regs)
: "r" (&regs->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | FIQ_MODE));
}
-void __attribute__((naked)) get_fiq_regs(struct pt_regs *regs)
+void __naked get_fiq_regs(struct pt_regs *regs)
{
register unsigned long tmp;
asm volatile (
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 7049815d66d..68d6494c038 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;