diff options
Diffstat (limited to 'target/linux/arc770')
2 files changed, 38 insertions, 31 deletions
diff --git a/target/linux/arc770/patches-4.4/001-ARC-arcompact-brown-paper-bag-bug-in-unaligned-access-delay-slot-fixup.patch b/target/linux/arc770/patches-4.4/001-ARC-arcompact-brown-paper-bag-bug-in-unaligned-access-delay-slot-fixup.patch new file mode 100644 index 0000000000..8f502d906f --- /dev/null +++ b/target/linux/arc770/patches-4.4/001-ARC-arcompact-brown-paper-bag-bug-in-unaligned-access-delay-slot-fixup.patch @@ -0,0 +1,38 @@ +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; diff --git a/target/linux/arc770/patches-4.4/900-revert-unaligned-access-delay-corner-case.patch b/target/linux/arc770/patches-4.4/900-revert-unaligned-access-delay-corner-case.patch deleted file mode 100644 index 37dc56e184..0000000000 --- a/target/linux/arc770/patches-4.4/900-revert-unaligned-access-delay-corner-case.patch +++ /dev/null @@ -1,31 +0,0 @@ -From: Jo-Philipp Wich <jo@mein.io> -Date: Tue, 7 Feb 2017 09:26:00 +0100 -Subject: [PATCH] arc: revert broken upstream change - -The upstream commit -"9aed02f ARC: [arcompact] handle unaligned access delay slot corner case" -introduced a syntax error in arch/arc/kernel/unaligned.c, leading to the -following build failure: - - arch/arc/kernel/unaligned.c: In function 'misaligned_fixup': - arch/arc/kernel/unaligned.c:246:25: error: expected ';' before '~' token - regs->ret = regs->bta ~1U; - ^ - make[6]: *** [arch/arc/kernel/unaligned.o] Error 1 - -This patch reverts the offending change until an upstream fix is available. - -Signed-off-by: Jo-Philipp Wich <jo@mein.io> ---- a/arch/arc/kernel/unaligned.c -+++ b/arch/arc/kernel/unaligned.c -@@ -241,9 +241,8 @@ int misaligned_fixup(unsigned long addre - if (state.fault) - goto fault; - -- /* clear any remanants of delay slot */ - if (delay_mode(regs)) { -- regs->ret = regs->bta ~1U; -+ regs->ret = regs->bta; - regs->status32 &= ~STATUS_DE_MASK; - } else { - regs->ret += state.instr_len; |