arm: trim _TIF_WORK_MASK, get rid of useless test and branch...

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
git-mirror · May 21, 2012 · 84849b3 · 84849b3
1 parent 7f1b5a9
commit 84849b3
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
@@ -170,7 +170,7 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 /*
  * Change these and you break ASM code in entry-common.S
  */
-#define _TIF_WORK_MASK		0x000000ff
+#define _TIF_WORK_MASK		(_TIF_NEED_RESCHED | _TIF_SIGPENDING | _TIF_NOTIFY_RESUME)
 
 #endif /* __KERNEL__ */
 #endif /* __ASM_ARM_THREAD_INFO_H */
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
@@ -53,8 +53,9 @@ fast_work_pending:
 work_pending:
 	tst	r1, #_TIF_NEED_RESCHED
 	bne	work_resched
-	tst	r1, #_TIF_SIGPENDING|_TIF_NOTIFY_RESUME
-	beq	no_work_pending
+	/*
+	 * TIF_SIGPENDING or TIF_NOTIFY_RESUME must've been set if we got here
+	 */
 	mov	r0, sp				@ 'regs'
 	mov	r2, why				@ 'syscall'
 	tst	r1, #_TIF_SIGPENDING		@ delivering a signal?