nat; Start to use gcc attribute to say that parameter may not be zero
This is an attempt to hint the compiler that it should check
the parameters and warn when something is null. Sadly it does
not work as expected.
diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c
index 738b7ef..dde9196 100644
--- a/openbsc/src/nat/bsc_nat.c
+++ b/openbsc/src/nat/bsc_nat.c
@@ -102,6 +102,7 @@
void input_event(int event, enum e1inp_sign_type type, struct gsm_bts_trx *trx)
{}
+static void queue_for_msc(struct bsc_msc_connection *con, struct msgb *msg) __attribute__((nonnull (1, 2)));
static void queue_for_msc(struct bsc_msc_connection *con, struct msgb *msg)
{
if (write_queue_enqueue(&con->write_queue, msg) != 0) {