tcp: add data-race annotations for TCP_NLA_SNDQ_SIZE

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tcp_get_timestamping_opt_stats() intentionally runs lockless, we must
add READ_ONCE() and WRITE_ONCE() annotations to keep KCSAN happy.

Fixes: 87ecc95d81 ("tcp: add send queue size stat in SCM_TIMESTAMPING_OPT_STATS")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260416200319.3608680-7-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Eric Dumazet 2026-04-16 20:03:11 +00:00 • committed by Jakub Kicinski

parent faa886ad3c

commit 124199444d

3 changed files with 6 additions and 4 deletions

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4

net/ipv4/tcp.c

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4

net/ipv4/tcp_input.c

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2

net/ipv4/tcp_output.c

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