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| author | Davide Caratti <[email protected]> | 2020-07-15 20:27:05 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2020-07-17 19:47:00 +0000 |
| commit | 8c728940487945e25cdfe020d58da42143aa98c1 (patch) | |
| tree | a91470aed5e01dc3e32be9c994a0df56056dffd0 /net/ipv4/tcp_input.c | |
| parent | Merge branch 'usbnet-multicast-filter-support-for-cdc-ncm-devices' (diff) | |
| download | kernel-8c728940487945e25cdfe020d58da42143aa98c1.tar.gz kernel-8c728940487945e25cdfe020d58da42143aa98c1.zip | |
mptcp: silence warning in subflow_data_ready()
since commit d47a72152097 ("mptcp: fix race in subflow_data_ready()"), it
is possible to observe a regression in MP_JOIN kselftests. For sockets in
TCP_CLOSE state, it's not sufficient to just wake up the main socket: we
also need to ensure that received data are made available to the reader.
Silence the WARN_ON_ONCE() in these cases: it preserves the syzkaller fix
and restores kselftests when they are ran as follows:
# while true; do
> make KBUILD_OUTPUT=/tmp/kselftest TARGETS=net/mptcp kselftest
> done
Reported-by: Florian Westphal <[email protected]>
Fixes: d47a72152097 ("mptcp: fix race in subflow_data_ready()")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/47
Signed-off-by: Davide Caratti <[email protected]>
Reviewed-by: Matthieu Baerts <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_input.c')
0 files changed, 0 insertions, 0 deletions