From: Kevin Hao <haokexin@gmail.com>
To: Tiejun Chen <tiejun.chen@windriver.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc <linuxppc-dev@lists.ozlabs.org>
Subject: [PATCH] powerpc: add a missing label in resume_kernel
Date: Wed, 10 Apr 2013 16:31:24 +0800 [thread overview]
Message-ID: <1365582684-11136-1-git-send-email-haokexin@gmail.com> (raw)
A label 0 was missed in the patch a9c4e541 (powerpc/kprobe: Complete
kprobe and migrate exception frame). This will cause the kernel
branch to an undetermined address if there really has a conflict when
updating the thread flags.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Cc: stable@vger.kernel.org
---
arch/powerpc/kernel/entry_64.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 256c5bf..ab079ed 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -657,7 +657,7 @@ resume_kernel:
/* Clear _TIF_EMULATE_STACK_STORE flag */
lis r11,_TIF_EMULATE_STACK_STORE@h
addi r5,r9,TI_FLAGS
- ldarx r4,0,r5
+0: ldarx r4,0,r5
andc r4,r4,r11
stdcx. r4,0,r5
bne- 0b
--
1.8.1.4
next reply other threads:[~2013-04-10 8:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-10 8:31 Kevin Hao [this message]
2013-04-10 8:43 ` [PATCH] powerpc: add a missing label in resume_kernel tiejun.chen
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