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authorMarkos Chandras <markos.chandras@imgtec.com>2015-03-03 18:48:48 +0000
committerRalf Baechle <ralf@linux-mips.org>2015-04-10 15:41:46 +0200
commit518222161d4a2d3f3b2700098563b62383f83878 (patch)
tree61f8ec2c4a6b7f1e5a455106c4b1067bc744fd54 /arch/mips/include
parentf6b39ae6f4d6ee835bb16e452086121aa010f1a7 (diff)
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op-kernel-dev-518222161d4a2d3f3b2700098563b62383f83878.tar.gz
MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case
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>
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/spinlock.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index b454869..1fca2e0 100644
--- 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_rwlock_t *rw)
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)
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