iw: make 'usage' static

diff --git a/iw.c b/iw.c
index 3811f6d6012c40315a072780c361b1949568cca8..39604f04fd81a08235b25db8be0bc0352d6da574 100644 (file)
--- a/iw.c
+++ b/iw.c
@@ -88,7 +88,7 @@ static int get_phy_or_dev(int *argc, char ***argv, char **name)
        return 0;
 }
 
-void usage(char *argv0)
+static void usage(char *argv0)
 {
        fprintf(stderr, "Usage: %1$s dev <phydev> <OBJECT> <COMMAND> [OPTIONS]"
                        "\n     %1$s dev <phydev> info\n"