linux-kernel - [PATCH -mm] kprobes: fix prepare

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Date:	Mon, 10 Mar 2008 20:06:48 -0400
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	Shaohua Li <shaohua.li@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	LKML <linux-kernel@...r.kernel.org>,
	ia64 <linux-ia64@...r.kernel.org>,
	"Luck, Tony" <tony.luck@...el.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Jim Keniston <jkenisto@...ibm.com>,
	systemtap-ml <systemtap@...rces.redhat.com>
Subject: [PATCH -mm] kprobes: fix prepare_booster to get correct slot

Fix to get correct slot number from probing address
in prepare_booster.

Signed-off-by: Masami Hiramatsu <mhiramat@...hat.com>
---
Andrew, this is a bugfix of
kprobes-kprobe-booster-for-ia64.patch

 arch/ia64/kernel/kprobes.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: 2.6.25-rc3-mm1/arch/ia64/kernel/kprobes.c
===================================================================
--- 2.6.25-rc3-mm1.orig/arch/ia64/kernel/kprobes.c
+++ 2.6.25-rc3-mm1/arch/ia64/kernel/kprobes.c
@@ -565,7 +565,7 @@ static int __kprobes can_boost(bundle_t
 static void __kprobes prepare_booster(struct kprobe *p)
 {
 	unsigned long addr = (unsigned long)p->addr & ~0xFULL;
-	unsigned int slot = addr & 0xf;
+	unsigned int slot = (unsigned long)p->addr & 0xf;
 	struct kprobe *other_kp;

 	if (can_boost(&p->ainsn.insn[0].bundle, slot, addr)) {
--
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