diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index 8cd4b05df75c..1271b839a107 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -569,7 +569,7 @@ asmlinkage void do_address_error(struct pt_regs *regs,
 /*
  *	SH-DSP support gerg@snapgear.com.
  */
-int is_dsp_inst(struct pt_regs *regs)
+static int is_dsp_inst(struct pt_regs *regs)
 {
 	unsigned short inst = 0;
 
@@ -591,7 +591,7 @@ int is_dsp_inst(struct pt_regs *regs)
 	return 0;
 }
 #else
-#define is_dsp_inst(regs)	(0)
+static inline int is_dsp_inst(struct pt_regs *regs) { return 0; }
 #endif /* CONFIG_SH_DSP */
 
 #ifdef CONFIG_CPU_SH2A