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 X-Patchwork-Id: 725238 Message-Id: <1486489498-9221-1-git-send-email-vgupta@synopsys.com> To: Linus Torvalds Cc: Vineet Gupta , linux-snps-arc@lists.infradead.org, Jo-Philipp Wich , linux-kernel@vger.kernel.org, stable@vger.kernel.org Date: Tue, 7 Feb 2017 09:44:58 -0800 Reported-by: Jo-Philipp Wich 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 --- 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;