skmsg: Update saved hooks only once
authorLorenz Bauer <lmb@cloudflare.com>
Mon, 9 Mar 2020 11:12:33 +0000 (11:12 +0000)
committerDaniel Borkmann <daniel@iogearbox.net>
Mon, 9 Mar 2020 21:34:58 +0000 (22:34 +0100)
commit1a2e20132db7bb76dd4f97b8364bd167227dd15f
treef8428f3a74bf1039a1acb7d63ed6a601eb660461
parent7b70973d7edb2f005511102d5a2e0116464a46a1
skmsg: Update saved hooks only once

Only update psock->saved_* if psock->sk_proto has not been initialized
yet. This allows us to get rid of tcp_bpf_reinit_sk_prot.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200309111243.6982-3-lmb@cloudflare.com
include/linux/skmsg.h
net/ipv4/tcp_bpf.c