From 0402becef94c43bb2bb483653a5cee2fb5049764 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 25 Jun 2011 15:46:08 +0100 Subject: [PATCH] ARM: entry: prefetch/data abort helpers: avoid corrupting r4 Replace r4 with ip for calling abort helpers - ip is allowed to be corrupted by called functions in the ABI, so it makes more sense to use such a register. Signed-off-by: Russell King --- arch/arm/kernel/entry-armv.S | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index dbe9eb88d550..6855f6dd72d0 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -47,9 +47,9 @@ .macro pabt_helper mov r0, r2 @ pass address of aborted instruction. #ifdef MULTI_PABORT - ldr r4, .LCprocfns + ldr ip, .LCprocfns mov lr, pc - ldr pc, [r4, #PROCESSOR_PABT_FUNC] + ldr pc, [ip, #PROCESSOR_PABT_FUNC] #else bl CPU_PABORT_HANDLER #endif @@ -67,9 +67,9 @@ @ the fault status register in r1. r9 must be preserved. @ #ifdef MULTI_DABORT - ldr r4, .LCprocfns + ldr ip, .LCprocfns mov lr, pc - ldr pc, [r4, #PROCESSOR_DABT_FUNC] + ldr pc, [ip, #PROCESSOR_DABT_FUNC] #else bl CPU_DABORT_HANDLER #endif -- 2.39.5