kxdpgun: fix error message if failed to get MAC

diff --git a/src/utils/kxdpgun/main.c b/src/utils/kxdpgun/main.c
index 787c5787c1d4fa6035834f88a1be3cdfb3e7007f..0a453c7727d584dfd2b7e34b8c909a8a562e1140 100644 (file)
--- a/src/utils/kxdpgun/main.c
+++ b/src/utils/kxdpgun/main.c
@@ -598,11 +598,12 @@ static bool configure_target(char *target_str, char *local_ip, xdp_gun_ctx_t *ct
                }
        }
 
-       ret = ip_neigh_get(via.ss_family == AF_UNSPEC ? &ctx->target_ip : &via, true, ctx->target_mac);
+       const struct sockaddr_storage *neigh = via.ss_family == AF_UNSPEC ? &ctx->target_ip : &via;
+       ret = ip_neigh_get(neigh, true, ctx->target_mac);
        if (ret < 0) {
-               char via_str[256] = { 0 };
-               (void)sockaddr_tostr(via_str, sizeof(via_str), &via);
-               printf("failed to get remote MAC of target/gateway `%s`: %s\n", via_str, strerror(-ret));
+               char neigh_str[256] = { 0 };
+               (void)sockaddr_tostr(neigh_str, sizeof(neigh_str), neigh);
+               printf("failed to get remote MAC of target/gateway `%s`: %s\n", neigh_str, strerror(-ret));
                return false;
        }