diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 50c17eaa7f252c0012efb15054c25797a793cea4..477c5334ec1b459eefb010c9ef5918ca1358b47b 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -42,8 +42,6 @@
 
 #include "signal-common.h"
 
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
 /*
  * Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
  */
@@ -83,6 +81,8 @@ struct rt_sigframe_n32 {
 #endif
 };
 
+extern void sigset_from_compat (sigset_t *set, compat_sigset_t *compat);
+
 save_static_function(sysn32_rt_sigsuspend);
 __attribute_used__ noinline static int
 _sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
diff --git a/fs/compat.c b/fs/compat.c
index 13fb08d096c436f5caba903abd57420935baa0cd..d98c96f4a44dfc8ea28d7364992facf81dfdbf14 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -56,8 +56,6 @@
 
 int compat_log = 1;
 
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
 int compat_printk(const char *fmt, ...)
 {
 	va_list ap;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 9760753e662b4f735583034b17a1e0ed5c24dc07..6f110957cc97468d3247a32df94b546b9a8a195d 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -13,6 +13,7 @@
 
 #include <asm/compat.h>
 #include <asm/siginfo.h>
+#include <asm/signal.h>
 
 #define compat_jiffies_to_clock_t(x)	\
 		(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
diff --git a/kernel/compat.c b/kernel/compat.c
index b4fbd838cd775ac9007af6e7d566652e1ad629de..75573e5d27b05c92dd1a11aaf483415935032624 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -26,8 +26,6 @@
 
 #include <asm/uaccess.h>
 
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
 int get_compat_timespec(struct timespec *ts, const struct compat_timespec __user *cts)
 {
 	return (!access_ok(VERIFY_READ, cts, sizeof(*cts)) ||