From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Markos Chandras <markos.chandras@imgtec.com>,
linux-mips@linux-mips.org, Ralf Baechle <ralf@linux-mips.org>
Subject: [PATCH 4.0 17/72] MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case
Date: Mon, 11 May 2015 10:54:23 -0700 [thread overview]
Message-ID: <20150511175437.626968074@linuxfoundation.org> (raw)
In-Reply-To: <20150511175437.112151861@linuxfoundation.org>
4.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Markos Chandras <markos.chandras@imgtec.com>
Commit 518222161d4a2d3f3b2700098563b62383f83878 upstream.
Commit 5753762cbd1c("MIPS: asm: spinlock: Replace "sub" instruction
with "addiu") replaced the "sub" instruction with addiu but it did
not update the immediate value in the R10000_LLSC_WAR case.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Fixes: 5753762cbd1c("MIPS: asm: spinlock: Replace "sub" instruction with "addiu"")
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9385/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/mips/include/asm/spinlock.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -263,7 +263,7 @@ static inline void arch_read_unlock(arch
if (R10000_LLSC_WAR) {
__asm__ __volatile__(
"1: ll %1, %2 # arch_read_unlock \n"
- " addiu %1, 1 \n"
+ " addiu %1, -1 \n"
" sc %1, %0 \n"
" beqzl %1, 1b \n"
: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp)
next prev parent reply other threads:[~2015-05-11 17:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20150511175437.112151861@linuxfoundation.org>
2015-05-11 17:54 ` [PATCH 4.0 07/72] MIPS: BCM63xx: Move bcm63xx_gpio_init() to bcm63xx_register_devices() Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 08/72] MIPS: OCTEON: dma-octeon: fix OHCI USB config check Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 09/72] MIPS: OCTEON: Use correct CSR to soft reset Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 10/72] Revert "MIPS: Remove race window in page fault handling" Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 11/72] MIPS: Fix race condition in lazy cache flushing Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 12/72] MIPS: Octeon: Remove udelay() causing huge IRQ latency Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 13/72] MIPS: OCTEON: fix PCI interrupt mapping for D-Link DSR-1000N Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 14/72] MIPS: Netlogic: Fix for SATA PHY init Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 15/72] MIPS: Kconfig: Fix typo for the r2-to-r6 emulator kernel parameter Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 16/72] MIPS: r4kcache: Use correct base register for MIPS R6 cache flushes Greg Kroah-Hartman
2015-05-11 17:54 ` Greg Kroah-Hartman [this message]
2015-05-11 17:54 ` [PATCH 4.0 18/72] MIPS: kernel: entry.S: Set correct ISA level for mips_ihb Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 22/72] SSB: fix Kconfig dependencies Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 23/72] MIPS: ralink: Fix bad config symbol in PCI makefile Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 24/72] MIPS: ralink: add missing symbol for RALINK_ILL_ACC Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 25/72] MIPS: smp-cps: cpu_set FPU mask if FPU present Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 26/72] MIPS: Kconfig: Disable SMP/CPS for 64-bit Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 27/72] MIPS: BCM47XX: Fix detecting Microsoft MN-700 & Asus WL500G Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 28/72] MIPS: asm: elf: Set O32 default FPU flags Greg Kroah-Hartman
2015-05-11 17:54 ` [PATCH 4.0 29/72] MIPS: Makefile: Fix MIPS ASE detection code Greg Kroah-Hartman
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