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ARC: ARCompact entry: elide re-reading ECR in ProtV handler
author
Vineet Gupta
<vgupta@synopsys.com>
Thu, 29 Sep 2016 22:19:46 +0000
(15:19 -0700)
committer
Vineet Gupta
<vgupta@synopsys.com>
Tue, 13 Dec 2016 21:16:11 +0000
(13:16 -0800)
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
arch/arc/kernel/entry-compact.S
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diff --git
a/arch/arc/kernel/entry-compact.S
b/arch/arc/kernel/entry-compact.S
index
98812c1
..
9211707
100644
(file)
--- 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.