Subject: [PATCH v2 4/4] uprobes/powerpc: remove additional trap instruction check

From: Ananth N Mavinakayanahalli <[email-masked]>
Date: Fri, 22 Mar 2013 20:49:46 +0530

From: Ananth N Mavinakayanahalli <[email-masked]>

prepare_uprobe() already checks if the underlying unstruction
(on file) is a trap variant. We don't need to check this again.

Signed-off-by: Ananth N Mavinakayanahalli <[email-masked]>
---
 arch/powerpc/kernel/uprobes.c |    6 ------
 1 file changed, 6 deletions(-)

Index: linux-3.9-rc3/arch/powerpc/kernel/uprobes.c
===================================================================
--- linux-3.9-rc3.orig/arch/powerpc/kernel/uprobes.c
+++ linux-3.9-rc3/arch/powerpc/kernel/uprobes.c
@@ -53,12 +53,6 @@ int arch_uprobe_analyze_insn(struct arch
 	if (addr & 0x03)
 		return -EINVAL;
 
-	/*
-	 * We currently don't support a uprobe on an already
-	 * existing breakpoint instruction underneath
-	 */
-	if (is_trap(auprobe->ainsn))
-		return -ENOTSUPP;
 	return 0;
 }