mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
|
From patchwork Tue Feb 7 17:44:58 2017
|
||
|
|
Content-Type: text/plain; charset="utf-8"
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Content-Transfer-Encoding: 7bit
|
||
|
|
Subject: ARC: [arcompact] brown paper bag bug in unaligned access delay slot
|
||
|
|
fixup
|
||
|
|
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
|
||
|
|
X-Patchwork-Id: 725238
|
||
|
|
Message-Id: <1486489498-9221-1-git-send-email-vgupta@synopsys.com>
|
||
|
|
To: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
|
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>,
|
||
|
|
linux-snps-arc@lists.infradead.org, Jo-Philipp Wich <jo@mein.io>,
|
||
|
|
linux-kernel@vger.kernel.org, stable@vger.kernel.org
|
||
|
|
Date: Tue, 7 Feb 2017 09:44:58 -0800
|
||
|
|
|
||
|
|
Reported-by: Jo-Philipp Wich <jo@mein.io>
|
||
|
|
Fixes: 9aed02feae57bf7 ("ARC: [arcompact] handle unaligned access delay slot")
|
||
|
|
Cc: linux-kernel@vger.kernel.org
|
||
|
|
Cc: linux-snps-arc@lists.infradead.org
|
||
|
|
Cc: stable@vger.kernel.org
|
||
|
|
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
||
|
|
---
|
||
|
|
arch/arc/kernel/unaligned.c | 2 +-
|
||
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
||
|
|
|
||
|
|
diff --git a/arch/arc/kernel/unaligned.c b/arch/arc/kernel/unaligned.c
|
||
|
|
index 91ebe382147f..5f69c3bd59bb 100644
|
||
|
|
--- a/arch/arc/kernel/unaligned.c
|
||
|
|
+++ b/arch/arc/kernel/unaligned.c
|
||
|
|
@@ -243,7 +243,7 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs,
|
||
|
|
|
||
|
|
/* clear any remanants of delay slot */
|
||
|
|
if (delay_mode(regs)) {
|
||
|
|
- regs->ret = regs->bta ~1U;
|
||
|
|
+ regs->ret = regs->bta & ~1U;
|
||
|
|
regs->status32 &= ~STATUS_DE_MASK;
|
||
|
|
} else {
|
||
|
|
regs->ret += state.instr_len;
|