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Date: Mon, 11 May 2015 10:54:23 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Markos Chandras <markos.chandras@...tec.com>, linux-mips@...ux-mips.org, Ralf Baechle <ralf@...ux-mips.org> Subject: [PATCH 4.0 17/72] MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case 4.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Markos Chandras <markos.chandras@...tec.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@...tec.com> Fixes: 5753762cbd1c("MIPS: asm: spinlock: Replace "sub" instruction with "addiu"") Cc: linux-mips@...ux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9385/ Signed-off-by: Ralf Baechle <ralf@...ux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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