misc: Fix compiler warning about incompatible pointers
diff --git a/openbsc/src/bsc_hack.c b/openbsc/src/bsc_hack.c
index 7f66423..11499ab 100644
--- a/openbsc/src/bsc_hack.c
+++ b/openbsc/src/bsc_hack.c
@@ -54,7 +54,7 @@
#define DB_SYNC_INTERVAL 60, 0
static struct timer_list db_sync_timer;
-extern int bsc_bootstrap_network(int (*mmc_rev)(struct gsm_network *, int, void *),
+extern int bsc_bootstrap_network(int (*mncc_recv)(struct gsm_network *, struct msgb *),
const char *cfg_file);
extern int bsc_shutdown_net(struct gsm_network *net);