passt: Add clang-tidy Makefile target and test, take care of warnings

Most are just about style and form, but a few were actually
serious mistakes (NDP-related).

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/udp.h b/udp.h
index e2d394c..8be174f 100644
--- a/udp.h
+++ b/udp.h
@@ -15,7 +15,7 @@ int udp_tap_handler(struct ctx *c, int af, void *addr,
 int udp_sock_init(struct ctx *c, struct timespec *now);
 void udp_timer(struct ctx *c, struct timespec *ts);
 void udp_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
-		       uint32_t *ip_da);
+		       const uint32_t *ip_da);
 void udp_remap_to_tap(in_port_t port, in_port_t delta);
 void udp_remap_to_init(in_port_t port, in_port_t delta);