From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 29 Sep 2016 22:19:46 +0000 (-0700)
Subject: ARC: ARCompact entry: elide re-reading ECR in ProtV handler
X-Git-Tag: v4.10-rc1~22^2~5
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=f5f3bde4f676ea4b23ac1d7293c69a069e687351;p=linux.git

ARC: ARCompact entry: elide re-reading ECR in ProtV handler

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

diff --git a/arch/arc/kernel/entry-compact.S b/arch/arc/kernel/entry-compact.S
index 98812c1248df..9211707634dc 100644
--- a/arch/arc/kernel/entry-compact.S
+++ b/arch/arc/kernel/entry-compact.S
@@ -259,7 +259,7 @@ ENTRY(EV_TLBProtV)
 
 	EXCEPTION_PROLOGUE
 
-	lr  r2, [ecr]
+	mov r2, r9	; ECR set into r9 already
 	lr  r0, [efa]	; Faulting Data address (not part of pt_regs saved above)
 
 	; Exception auto-disables further Intr/exceptions.