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authorJesper Dangaard Brouer <brouer@redhat.com>2017-05-01 11:26:15 +0200
committerDavid S. Miller <davem@davemloft.net>2017-05-01 10:42:37 -0400
commit6387d0111ca4740b69a082a92fc373185af11133 (patch)
treeac6e2a31dc6650b92de059ce1c6261f7fd33a65a /samples/bpf/xdp1_user.c
parentd74a32acd59a8ccd8e209af3f4cf533e0359d355 (diff)
downloadlinux-stericsson-6387d0111ca4740b69a082a92fc373185af11133.tar.gz
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>
Diffstat (limited to 'samples/bpf/xdp1_user.c')
-rw-r--r--samples/bpf/xdp1_user.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c
index deb05e630d84..378850c70eb8 100644
--- a/samples/bpf/xdp1_user.c
+++ b/samples/bpf/xdp1_user.c
@@ -20,11 +20,11 @@
#include "libbpf.h"
static int ifindex;
-static int flags;
+static __u32 xdp_flags;
static void int_exit(int sig)
{
- set_link_xdp_fd(ifindex, -1, flags);
+ set_link_xdp_fd(ifindex, -1, xdp_flags);
exit(0);
}
@@ -75,7 +75,7 @@ int main(int argc, char **argv)
while ((opt = getopt(argc, argv, optstr)) != -1) {
switch (opt) {
case 'S':
- flags |= XDP_FLAGS_SKB_MODE;
+ xdp_flags |= XDP_FLAGS_SKB_MODE;
break;
default:
usage(basename(argv[0]));
@@ -103,7 +103,7 @@ int main(int argc, char **argv)
signal(SIGINT, int_exit);
- 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;
}