diff options
Diffstat (limited to 'samples/bpf/xdp_adjust_tail_kern.c')
| -rw-r--r-- | samples/bpf/xdp_adjust_tail_kern.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/samples/bpf/xdp_adjust_tail_kern.c b/samples/bpf/xdp_adjust_tail_kern.c index ffdd548627f0..da67bcad1c63 100644 --- a/samples/bpf/xdp_adjust_tail_kern.c +++ b/samples/bpf/xdp_adjust_tail_kern.c @@ -57,6 +57,7 @@ static __always_inline void swap_mac(void *data, struct ethhdr *orig_eth) static __always_inline __u16 csum_fold_helper(__u32 csum) { + csum = (csum & 0xffff) + (csum >> 16); return ~((csum & 0xffff) + (csum >> 16)); } |