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Message-Id: <1405459868-15089-154-git-send-email-kamal@canonical.com>
Date: Tue, 15 Jul 2014 14:30:23 -0700
From: Kamal Mostafa <kamal@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: ChiaHao <andy.jhshiu@...il.com>,
Catalin Marinas <catalin.marinas@....com>,
Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 153/198] arm64: Bug fix in stack alignment exception
3.13.11.5 -stable review patch. If anyone has any objections, please let me know.
------------------
From: ChiaHao <andy.jhshiu@...il.com>
commit 3906c2b53cd23c2ae03e6ce41432c8e7f0a3cbbb upstream.
The value of ESR has been stored into x1, and should be directly pass to
do_sp_pc_abort function, "MOV x1, x25" is an extra operation and do_sp_pc_abort
will get the wrong value of ESR.
Signed-off-by: ChiaHao <andy.jhshiu@...il.com>
Signed-off-by: Catalin Marinas <catalin.marinas@....com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
arch/arm64/kernel/entry.S | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 4d2c6f3..013baa0 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -275,7 +275,6 @@ el1_sp_pc:
* Stack or PC alignment exception handling
*/
mrs x0, far_el1
- mov x1, x25
mov x2, sp
b do_sp_pc_abort
el1_undef:
--
1.9.1
--
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