diff --git a/include/linux/signal.h b/include/linux/signal.h
index 3d4cd5db30a966b015a89cccc78b9fc2301bb895..e4d01469ed60c736926674d944e8570f81409867 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -36,7 +36,7 @@ enum siginfo_layout {
 	SIL_SYS,
 };
 
-enum siginfo_layout siginfo_layout(int sig, int si_code);
+enum siginfo_layout siginfo_layout(unsigned sig, int si_code);
 
 /*
  * Define some primitives to manipulate sigset_t.
diff --git a/kernel/signal.c b/kernel/signal.c
index 092fb48ed8451ba062924f675bfe3159b59ee4f1..edc28afc9fb4be5f1a088e2d25aefa3059898c05 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2847,7 +2847,7 @@ COMPAT_SYSCALL_DEFINE2(rt_sigpending, compat_sigset_t __user *, uset,
 }
 #endif
 
-enum siginfo_layout siginfo_layout(int sig, int si_code)
+enum siginfo_layout siginfo_layout(unsigned sig, int si_code)
 {
 	enum siginfo_layout layout = SIL_KILL;
 	if ((si_code > SI_USER) && (si_code < SI_KERNEL)) {