From: Ananth N Mavinakayanahalli <ananth@in.ibm.com>

Fix kprobes compilation breakage on sparc64 caused due to
kprobes-list-all-active-probes-in-the-system.patch

Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/kprobes.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff -puN kernel/kprobes.c~kprobes-list-all-active-probes-in-the-system-fix kernel/kprobes.c
--- a/kernel/kprobes.c~kprobes-list-all-active-probes-in-the-system-fix
+++ a/kernel/kprobes.c
@@ -780,6 +780,12 @@ int __kprobes register_kretprobe(struct 
 	return -ENOSYS;
 }
 
+static int __kprobes pre_handler_kretprobe(struct kprobe *p,
+					   struct pt_regs *regs)
+{
+	return 0;
+}
+
 #endif /* ARCH_SUPPORTS_KRETPROBES */
 
 void __kprobes unregister_kretprobe(struct kretprobe *rp)
_