Instead of querying the sk_ipv6only field directly, use the dedicated ipv6_only_sock helper.
Signed-off-by: Maxim Mikityanskiy maximmi@nvidia.com Reviewed-by: Tariq Toukan tariqt@nvidia.com Acked-by: John Fastabend john.fastabend@gmail.com Acked-by: Lorenz Bauer lmb@cloudflare.com Acked-by: Petar Penkov ppenkov@google.com --- net/core/filter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/filter.c b/net/core/filter.c index 8847316ee20e..207a13db5c80 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -7099,7 +7099,7 @@ BPF_CALL_5(bpf_tcp_gen_syncookie, struct sock *, sk, void *, iph, u32, iph_len, */ switch (((struct iphdr *)iph)->version) { case 4: - if (sk->sk_family == AF_INET6 && sk->sk_ipv6only) + if (sk->sk_family == AF_INET6 && ipv6_only_sock(sk)) return -EINVAL;
mss = tcp_v4_get_syncookie(sk, iph, th, &cookie);