mips: warning fix audit_arch()

arch/mips/kernel/ptrace.c:305: warning: function declaration isn't a prototype
Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

arch/mips/kernel/ptrace.c

@@ -300,7 +300,7 @@ out:
 	return ret;
 }
 
-static inline int audit_arch()
+static inline int audit_arch(void)
 {
 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 #ifdef CONFIG_MIPS64