tcp: fix a lockdep issue in tcp_fastopen_reset_cipher()

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icsk_accept_queue.fastopenq.lock is only fully initialized at listen()
time.

LOCKDEP is not happy if we attempt a spin_lock_bh() on it, because
of missing annotation. (Although kernel runs just fine)

Lets use net->ipv4.tcp_fastopen_ctx_lock to protect ctx access.

Fixes: 1fba70e5b6 ("tcp: socket option to set TCP fast open key")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Christoph Paasch <cpaasch@apple.com>
Reviewed-by: Christoph Paasch <cpaasch@apple.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Eric Dumazet 2017-11-02 11:53:04 -07:00 • committed by David S. Miller

parent 8c01c4f896

commit 9eba935338

1 changed files with 3 additions and 5 deletions

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net/ipv4/tcp_fastopen.c

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