drivers/net/wan: fix sparse warning: make symbol static

Fix this sparse warning:

  drivers/net/wan/x25_asy.c:623:5: warning: symbol 'x25_asy_esc' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
index 472bd0e6dd9d..e6e2ce3e7bcf 100644
--- a/drivers/net/wan/x25_asy.c
+++ b/drivers/net/wan/x25_asy.c
@@ -620,7 +620,7 @@ static struct net_device_stats *x25_asy_get_stats(struct net_device *dev)
   *                     STANDARD X.25 ENCAPSULATION                      *
   ************************************************************************/
 
-int x25_asy_esc(unsigned char *s, unsigned char *d, int len)
+static int x25_asy_esc(unsigned char *s, unsigned char *d, int len)
 {
         unsigned char *ptr = d;
         unsigned char c;