samples/bpf: fix SKB_MODE flag to be a 32-bit unsigned int
The kernel side of XDP_FLAGS_SKB_MODE is unsigned, and the rtnetlink
IFLA_XDP_FLAGS is defined as NLA_U32. Thus, userspace programs under
samples/bpf/ should use the correct type.
Fixes: 3993f2cb983b ("samples/bpf: Add support for SKB_MODE to xdp1 and xdp_tx_iptunnel")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/samples/bpf/xdp_tx_iptunnel_user.c b/samples/bpf/xdp_tx_iptunnel_user.c
index cb2bda7..880dd4a 100644
--- a/samples/bpf/xdp_tx_iptunnel_user.c
+++ b/samples/bpf/xdp_tx_iptunnel_user.c
@@ -142,8 +142,8 @@ int main(int argc, char **argv)
struct iptnl_info tnl = {};
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct vip vip = {};
+ __u32 xdp_flags = 0;
char filename[256];
- int flags = 0;
int opt;
int i;
@@ -204,7 +204,7 @@ int main(int argc, char **argv)
kill_after_s = atoi(optarg);
break;
case 'S':
- flags |= XDP_FLAGS_SKB_MODE;
+ xdp_flags |= XDP_FLAGS_SKB_MODE;
break;
default:
usage(argv[0]);
@@ -248,14 +248,14 @@ int main(int argc, char **argv)
}
}
- if (set_link_xdp_fd(ifindex, prog_fd[0], flags) < 0) {
+ if (set_link_xdp_fd(ifindex, prog_fd[0], xdp_flags) < 0) {
printf("link set xdp fd failed\n");
return 1;
}
poll_stats(kill_after_s);
- set_link_xdp_fd(ifindex, -1, flags);
+ set_link_xdp_fd(ifindex, -1, xdp_flags);
return 0;
}
