diff --git a/[refs] b/[refs]
index 76d07be7afa2..2aa2339a299d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1c72d46d98e4eb16f1a1b38eba94cc3aa8022cfa
+refs/heads/master: e5bdd883a189243541e7a132385580703b049102
diff --git a/trunk/include/linux/signal.h b/trunk/include/linux/signal.h
index 78bfb266e4f7..0a98f5ec5cae 100644
--- a/trunk/include/linux/signal.h
+++ b/trunk/include/linux/signal.h
@@ -220,6 +220,12 @@ static inline void init_sigpending(struct sigpending *sig)
 	INIT_LIST_HEAD(&sig->list);
 }
 
+/* Test if 'sig' is valid signal. Use this instead of testing _NSIG directly */
+static inline int valid_signal(unsigned long sig)
+{
+	return sig <= _NSIG ? 1 : 0;
+}
+
 extern int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p);
 extern int __group_send_sig_info(int, struct siginfo *, struct task_struct *);
 extern long do_sigpending(void __user *, unsigned long);