From c26b098bf42c71111ca976ce330ea5c66b9a5d8e Mon Sep 17 00:00:00 2001 From: Kuniyuki Iwashima Date: Tue, 3 Feb 2026 21:30:07 +0000 Subject: [PATCH] bpf: Don't check sk_fullsock() in bpf_skc_to_unix_sock(). AF_UNIX does not use TCP_NEW_SYN_RECV nor TCP_TIME_WAIT and checking sk->sk_family is sufficient. Let's remove sk_fullsock() and use sk_is_unix() in bpf_skc_to_unix_sock(). Acked-by: Stanislav Fomichev Signed-off-by: Kuniyuki Iwashima Signed-off-by: Martin KaFai Lau Link: https://patch.msgid.link/20260203213442.682838-3-kuniyu@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 f04982d79d72e..90bfe5a6c1db0 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -12021,7 +12021,7 @@ BPF_CALL_1(bpf_skc_to_unix_sock, struct sock *, sk) * trigger an explicit type generation here. */ BTF_TYPE_EMIT(struct unix_sock); - if (sk && sk_fullsock(sk) && sk->sk_family == AF_UNIX) + if (sk && sk_is_unix(sk)) return (unsigned long)sk; return (unsigned long)NULL; -- 2.47.3