parisc: Use of align_frame provides stack frame.

Any assembly constant generated with the use of
align_frame includes size for a full stack frame.

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

1 files changed, 11 insertions, 4 deletions

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index ec787b411e9a..dcd55103a4bb 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -45,8 +45,12 @@
 #else
 #define FRAME_SIZE      64
 #endif
+#define FRAME_ALIGN     64
 
-#define align(x,y) (((x)+FRAME_SIZE+(y)-1) - (((x)+(y)-1)%(y)))
+/* Add FRAME_SIZE to the size x and align it to y. All definitions
+ * that use align_frame will include space for a frame.
+ */
+#define align_frame(x,y) (((x)+FRAME_SIZE+(y)-1) - (((x)+(y)-1)%(y)))
 
 int main(void)
 {
@@ -146,7 +150,8 @@ int main(void)
         DEFINE(TASK_PT_IOR, offsetof(struct task_struct, thread.regs.ior));
         BLANK();
         DEFINE(TASK_SZ, sizeof(struct task_struct));
-        DEFINE(TASK_SZ_ALGN, align(sizeof(struct task_struct), 64));
+        /* TASK_SZ_ALGN includes space for a stack frame. */
+        DEFINE(TASK_SZ_ALGN, align_frame(sizeof(struct task_struct), FRAME_ALIGN));
         BLANK();
         DEFINE(PT_PSW, offsetof(struct pt_regs, gr[ 0]));
         DEFINE(PT_GR1, offsetof(struct pt_regs, gr[ 1]));
@@ -233,7 +238,8 @@ int main(void)
         DEFINE(PT_ISR, offsetof(struct pt_regs, isr));
         DEFINE(PT_IOR, offsetof(struct pt_regs, ior));
         DEFINE(PT_SIZE, sizeof(struct pt_regs));
-        DEFINE(PT_SZ_ALGN, align(sizeof(struct pt_regs), 64));
+        /* PT_SZ_ALGN includes space for a stack frame. */
+        DEFINE(PT_SZ_ALGN, align_frame(sizeof(struct pt_regs), FRAME_ALIGN));
         BLANK();
         DEFINE(TI_TASK, offsetof(struct thread_info, task));
         DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
@@ -242,7 +248,8 @@ int main(void)
         DEFINE(TI_SEGMENT, offsetof(struct thread_info, addr_limit));
         DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
         DEFINE(THREAD_SZ, sizeof(struct thread_info));
-        DEFINE(THREAD_SZ_ALGN, align(sizeof(struct thread_info), 64));
+        /* THREAD_SZ_ALGN includes space for a stack frame. */
+        DEFINE(THREAD_SZ_ALGN, align_frame(sizeof(struct thread_info), FRAME_ALIGN));
         BLANK();
         DEFINE(ICACHE_BASE, offsetof(struct pdc_cache_info, ic_base));
         DEFINE(ICACHE_STRIDE, offsetof(struct pdc_cache_info, ic_stride));