When CONFIG_SYN_COOKIES is off, bpf_tcp_check_syncookie returns ENOTSUPP. It's a non-standard and deprecated code. The related function bpf_tcp_gen_syncookie and most of the other functions use EOPNOTSUPP if some feature is not available. This patch changes ENOTSUPP to EOPNOTSUPP in bpf_tcp_check_syncookie. Signed-off-by: Maxim Mikityanskiy <maximmi@xxxxxxxxxx> Reviewed-by: Tariq Toukan <tariqt@xxxxxxxxxx> --- 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 6cfb676e1adb..2c5877b775d9 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -6754,7 +6754,7 @@ BPF_CALL_5(bpf_tcp_check_syncookie, struct sock *, sk, void *, iph, u32, iph_len return -ENOENT; #else - return -ENOTSUPP; + return -EOPNOTSUPP; #endif } -- 2.30.2
