tcp: annotate data-races around fastopenq.max_qlen

stable inclusion
from stable-v5.10.188
commit e0ac63e194f49a5b5e7b79b8017635b3c49f1994
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=e0ac63e194f49a5b5e7b79b8017635b3c49f1994



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[ Upstream commit 70f360dd ]

This field can be read locklessly.

Fixes: 1536e285 ("tcp: Add a TCP_FASTOPEN socket option to get a max backlog on its listner")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230719212857.3943972-12-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>