Subject: [v3][PATCH 4/6] powerpc/book3e: support kgdb for kernel space

From: Tiejun Chen <[email-masked]>
Date: Wed, 27 Feb 2013 11:09:26 +0800

Currently we need to skip this for supporting KGDB.

Signed-off-by: Tiejun Chen <[email-masked]>
---
 arch/powerpc/kernel/exceptions-64e.S |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 7df9a1f..800e2a3 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -598,11 +598,14 @@ kernel_dbg_exc:
 	rfdi
 
 	/* Normal debug exception */
+1:
+#ifndef CONFIG_KGDB
 	/* XXX We only handle coming from userspace for now since we can't
 	 *     quite save properly an interrupted kernel state yet
 	 */
-1:	andi.	r14,r11,MSR_PR;		/* check for userspace again */
+	andi.	r14,r11,MSR_PR;		/* check for userspace again */
 	beq	kernel_dbg_exc;		/* if from kernel mode */
+#endif
 
 	/* Now we mash up things to make it look like we are coming on a
 	 * normal exception
-- 
1.7.9.5