From: Xin Long <lucien....@gmail.com>
Date: Sun, 23 Aug 2015 19:30:15 +0800
Vlad et al., please review.
> commit f8d960524 fix the 0 peer.rwnd issue in SHUTDOWN_PENDING state through
> not reseting the overall_error_count when receive a heartbeat, but the same
> issue also exists in SHUTDOWN_RECEIVE state.
>
> so we change the condition to state < SCTP_STATE_SHUTDOWN_PENDING to reset the
> overall_error_count when receive a heartbeat, which can avoid the issue happen
> in SCTP_STATE_SHUTDOWN_RECEIVE.
>
> as to SCTP_STATE_SHUTDOWN_ACK_SENT and SCTP_STATE_SHUTDOWN_SENT state, with
> this patch, it will not be affected by the heartbeat, cause these two states
> have been taken charge of by t2 timer.
>
> Fixes: f8d960524 ("sctp: Enforce retransmission limit during shutdown")
> Signed-off-by: Xin Long <lucien....@gmail.com>
> ---
> net/sctp/sm_sideeffect.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
> index fef2acd..85e6f03 100644
> --- a/net/sctp/sm_sideeffect.c
> +++ b/net/sctp/sm_sideeffect.c
> @@ -702,7 +702,7 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
> * outstanding data and rely on the retransmission limit be reached
> * to shutdown the association.
> */
> - if (t->asoc->state != SCTP_STATE_SHUTDOWN_PENDING)
> + if (t->asoc->state < SCTP_STATE_SHUTDOWN_PENDING)
> t->asoc->overall_error_count = 0;
>
> /* Clear the hb_sent flag to signal that we had a good
> --
> 2.1.0
>
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