diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h
index 8441d1a..daf02d3 100644
--- a/arch/sparc/include/asm/oplib_64.h
+++ b/arch/sparc/include/asm/oplib_64.h
@@ -259,7 +259,6 @@
 			int value_size);
 
 extern phandle prom_inst2pkg(int);
-extern int prom_service_exists(const char *service_name);
 extern void prom_sun4v_guest_soft_state(void);
 
 extern int prom_ihandle2path(int handle, char *buffer, int bufsize);
diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c
index d24bc44..b900fdf 100644
--- a/arch/sparc/prom/misc_64.c
+++ b/arch/sparc/prom/misc_64.c
@@ -18,7 +18,7 @@
 #include <asm/system.h>
 #include <asm/ldc.h>
 
-int prom_service_exists(const char *service_name)
+static int prom_service_exists(const char *service_name)
 {
 	unsigned long args[5];