1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/ppp_deflate.c b/drivers/net/ppp_deflate.c
index eb98b661efba..034c1c650bcb 100644
--- a/drivers/net/ppp_deflate.c
+++ b/drivers/net/ppp_deflate.c
@@ -206,7 +206,7 @@ static void z_comp_reset(void *arg)
  *      Returns the length of the compressed packet, or 0 if the
  *      packet is incompressible.
  */
-int z_compress(void *arg, unsigned char *rptr, unsigned char *obuf,
+static int z_compress(void *arg, unsigned char *rptr, unsigned char *obuf,
                int isize, int osize)
 {
         struct ppp_deflate_state *state = (struct ppp_deflate_state *) arg;
@@ -435,7 +435,7 @@ static void z_decomp_reset(void *arg)
  * bug, so we return DECOMP_FATALERROR for them in order to turn off
  * compression, even though they are detected by inspecting the input.
  */
-int z_decompress(void *arg, unsigned char *ibuf, int isize,
+static int z_decompress(void *arg, unsigned char *ibuf, int isize,
                  unsigned char *obuf, int osize)
 {
         struct ppp_deflate_state *state = (struct ppp_deflate_state *) arg;