From: Vineet Gupta <vgupta@synopsys.com>
Date: Tue, 14 May 2013 13:00:50 +0000 (+0530)
Subject: ARC: Simplify branch for in-kernel preemption
X-Git-Tag: next-20130527~95^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ec22beddb46a5fc0e1140d2dc63a37817b8ffef4;p=karo-tx-linux.git

ARC: Simplify branch for in-kernel preemption

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---

diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 0c6d664d4a83..1c50c50e4987 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -589,11 +589,7 @@ ARC_ENTRY ret_from_exception
 	; Pre-{IRQ,Trap,Exception} K/U mode from pt_regs->status32
 	ld  r8, [sp, PT_status32]   ; returning to User/Kernel Mode
 
-#ifdef CONFIG_PREEMPT
 	bbit0  r8, STATUS_U_BIT, resume_kernel_mode
-#else
-	bbit0  r8, STATUS_U_BIT, restore_regs
-#endif
 
 	; Before returning to User mode check-for-and-complete any pending work
 	; such as rescheduling/signal-delivery etc.
@@ -653,10 +649,10 @@ resume_user_mode_begin:
 	b      resume_user_mode_begin	; unconditionally back to U mode ret chks
 					; for single exit point from this block
 
-#ifdef CONFIG_PREEMPT
-
 resume_kernel_mode:
 
+#ifdef CONFIG_PREEMPT
+
 	; Can't preempt if preemption disabled
 	GET_CURR_THR_INFO_FROM_SP   r10
 	ld  r8, [r10, THREAD_INFO_PREEMPT_COUNT]