Merge branch 'x86/core' into cpus4096

8 files changed, 16 insertions, 13 deletions

diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 09a061c..9ca8d13f 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -98,7 +98,7 @@
 		CALL(sys_uselib)
 		CALL(sys_swapon)
 		CALL(sys_reboot)
-		CALL(OBSOLETE(old_readdir))	/* used by libc4 */
+		CALL(OBSOLETE(sys_old_readdir))	/* used by libc4 */
 /* 90 */	CALL(OBSOLETE(old_mmap))	/* used by libc4 */
 		CALL(sys_munmap)
 		CALL(sys_truncate)
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 8484909..d4a0da1 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 77b0474..85040cf 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 06269ea..49a6ba9 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 4bb723e..45eacb5 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),
 };
 
 #ifdef CONFIG_CPUMASK_OFFSTACK
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index 440dc62..598ca61 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 7049815..68d6494 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;
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 0021607..85598f7 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -65,6 +65,7 @@ SECTIONS
 #endif
 		. = ALIGN(4096);
 		__per_cpu_start = .;
+			*(.data.percpu.page_aligned)
 			*(.data.percpu)
 			*(.data.percpu.shared_aligned)
 		__per_cpu_end = .;