aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorDavid Daney <david.daney@cavium.com>2012-07-19 09:11:14 +0200
committerRalf Baechle <ralf@linux-mips.org>2012-07-19 11:23:43 +0200
commit7b1c0d26a8e272787f0f9fcc5f3e8531df3b3409 (patch)
tree0aef79b4026b5bacbe8e621013daccce1b82d37a
parentc5de50dada1403e1abc8cd4a8c9a1283c859e0bb (diff)
downloadlinux-stericsson-7b1c0d26a8e272787f0f9fcc5f3e8531df3b3409.tar.gz
MIPS: Properly align the .data..init_task section.
Improper alignment can lead to unbootable systems and/or random crashes. [ralf@linux-mips.org: This is a lond standing bug since 6eb10bc9e2deab06630261cd05c4cb1e9a60e980 (kernel.org) rsp. c422a10917f75fd19fa7fe070aaaa23e384dae6f (lmo) [MIPS: Clean up linker script using new linker script macros.] so dates back to 2.6.32.] Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/3881/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/include/asm/thread_info.h4
-rw-r--r--arch/mips/kernel/vmlinux.lds.S3
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index e2eca7d10598..ca97e0ecb64b 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -60,6 +60,8 @@ struct thread_info {
register struct thread_info *__current_thread_info __asm__("$28");
#define current_thread_info() __current_thread_info
+#endif /* !__ASSEMBLY__ */
+
/* thread information allocation */
#if defined(CONFIG_PAGE_SIZE_4KB) && defined(CONFIG_32BIT)
#define THREAD_SIZE_ORDER (1)
@@ -85,8 +87,6 @@ register struct thread_info *__current_thread_info __asm__("$28");
#define STACK_WARN (THREAD_SIZE / 8)
-#endif /* !__ASSEMBLY__ */
-
#define PREEMPT_ACTIVE 0x10000000
/*
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 924da5eb7031..df243a64f430 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -1,5 +1,6 @@
#include <asm/asm-offsets.h>
#include <asm/page.h>
+#include <asm/thread_info.h>
#include <asm-generic/vmlinux.lds.h>
#undef mips
@@ -72,7 +73,7 @@ SECTIONS
.data : { /* Data */
. = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
- INIT_TASK_DATA(PAGE_SIZE)
+ INIT_TASK_DATA(THREAD_SIZE)
NOSAVE_DATA
CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)