adjust: bpf_attach_xdp report nicer error

diff --git a/src/cc/libbpf.c b/src/cc/libbpf.c
index b83d68fd7b6e8af0abf1639a7bb639aec865f7ab..0ba0c83e1d94ae2248ea4b8f045b589654762e9d 100644 (file)
--- a/src/cc/libbpf.c
+++ b/src/cc/libbpf.c
@@ -1413,7 +1413,7 @@ int bpf_attach_xdp(const char *dev_name, int progfd, uint32_t flags) {
   ret = bpf_set_link_xdp_fd(ifindex, progfd, flags);
   if (ret) {
     libbpf_strerror(ret, err_buf, sizeof(err_buf));
-    fprintf(stderr, "bpf: Attaching prog to %s: %s", dev_name, err_buf);
+    fprintf(stderr, "bpf: Attaching prog to %s: %s\n", dev_name, err_buf);
     return -1;
   }