[ARM] iwmmxt thread state alignment

This patch removes the reliance of iwmmxt on hand coded alignments.
Since thread_info is always 8K aligned, specifying that fpstate is
8-byte aligned achieves the same effect without needing to resort
to hand coded alignments.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 4 insertions, 2 deletions

diff --git a/include/asm-arm/fpstate.h b/include/asm-arm/fpstate.h
index f7430e3aa55d..6246bf83627d 100644
--- a/include/asm-arm/fpstate.h
+++ b/include/asm-arm/fpstate.h
@@ -55,8 +55,10 @@ struct fp_soft_struct {
         unsigned int save[FP_SOFT_SIZE];                /* undefined information */
 };
 
+#define IWMMXT_SIZE     0x98
+
 struct iwmmxt_struct {
-        unsigned int save[0x98/sizeof(int) + 1];
+        unsigned int save[IWMMXT_SIZE / sizeof(unsigned int)];
 };
 
 union fp_state {
diff --git a/include/asm-arm/thread_info.h b/include/asm-arm/thread_info.h
index 33a33cbb6329..cfbccb63c67b 100644
--- a/include/asm-arm/thread_info.h
+++ b/include/asm-arm/thread_info.h
@@ -59,7 +59,7 @@ struct thread_info {
         struct cpu_context_save cpu_context;    /* cpu context */
         __u8                    used_cp[16];    /* thread used copro */
         unsigned long           tp_value;
-        union fp_state          fpstate;
+        union fp_state          fpstate __attribute__((aligned(8)));
         union vfp_state         vfpstate;
         struct restart_block    restart_block;
 };