kbuild: add static to prototypes

Warnings found via gcc -Wmissing-prototypes.

Signed-off-by: Trevor Keith <tsrk@tsrk.net>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 5de3303e65f5..9960d1c303f8 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -121,7 +121,7 @@ static int conf_askvalue(struct symbol *sym, const char *def)
         return 1;
 }
 
-int conf_string(struct menu *menu)
+static int conf_string(struct menu *menu)
 {
         struct symbol *sym = menu->sym;
         const char *def;