tcp: annotate data-races around icsk->icsk_user_timeout

stable inclusion
from stable-v5.10.188
commit d01afbfc2f7df4fc943edd5414589cdc1bffb4bd
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8KYFP

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d01afbfc2f7df4fc943edd5414589cdc1bffb4bd



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[ Upstream commit 26023e91 ]

This field can be read locklessly from do_tcp_getsockopt()

Fixes: dca43c75 ("tcp: Add TCP_USER_TIMEOUT socket option.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230719212857.3943972-11-edumazet@google.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>