Subject: [PATCH 3/4] powerpc: use patch_exception to update the debug exception handler

From: Kevin Hao <[email-masked]>
Date: Sun, 12 May 2013 07:26:23 +0800

Signed-off-by: Kevin Hao <[email-masked]>
---
 arch/powerpc/kernel/setup_64.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index e379d3f..59dffd0 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -505,9 +505,6 @@ static void __init irqstack_early_init(void)
 #ifdef CONFIG_PPC_BOOK3E
 static void __init exc_lvl_early_init(void)
 {
-	extern unsigned int interrupt_base_book3e;
-	extern unsigned int exc_debug_debug_book3e;
-
 	unsigned int i;
 
 	for_each_possible_cpu(i) {
@@ -520,8 +517,7 @@ static void __init exc_lvl_early_init(void)
 	}
 
 	if (cpu_has_feature(CPU_FTR_DEBUG_LVL_EXC))
-		patch_branch(&interrupt_base_book3e + (0x040 / 4) + 1,
-			     (unsigned long)&exc_debug_debug_book3e, 0);
+		patch_exception(0x040, exc_debug_debug_book3e);
 }
 #else
 #define exc_lvl_early_init()
-- 
1.8.1.4