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| author | Xin Long <[email protected]> | 2021-07-21 18:45:54 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2021-07-21 21:17:58 +0000 |
| commit | 02dc2ee7c7476dd831df63d2b10cc0a162a531f1 (patch) | |
| tree | cf16b67c5599314cd1873615f56815475ca457cf /net/ipv4/tcp_fastopen.c | |
| parent | net: ixp46x: fix ptp build failure (diff) | |
| download | kernel-02dc2ee7c7476dd831df63d2b10cc0a162a531f1.tar.gz kernel-02dc2ee7c7476dd831df63d2b10cc0a162a531f1.zip | |
sctp: do not update transport pathmtu if SPP_PMTUD_ENABLE is not set
Currently, in sctp_packet_config(), sctp_transport_pmtu_check() is
called to update transport pathmtu with dst's mtu when dst's mtu
has been changed by non sctp stack like xfrm.
However, this should only happen when SPP_PMTUD_ENABLE is set, no
matter where dst's mtu changed. This patch is to fix by checking
SPP_PMTUD_ENABLE flag before calling sctp_transport_pmtu_check().
Thanks Jacek for reporting and looking into this issue.
v1->v2:
- add the missing "{" to fix the build error.
Fixes: 69fec325a643 ('Revert "sctp: remove sctp_transport_pmtu_check"')
Reported-by: Jacek Szafraniec <[email protected]>
Tested-by: Jacek Szafraniec <[email protected]>
Signed-off-by: Xin Long <[email protected]>
Acked-by: Marcelo Ricardo Leitner <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_fastopen.c')
0 files changed, 0 insertions, 0 deletions