This is a note to let you know that I've just added the patch titled sctp: remove the unnecessary sinfo_stream check in sctp_prsctp_prune_unsent to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: sctp-remove-the-unnecessary-sinfo_stream-check-in-sc.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit b86214767455865eaa3d679413b86761a295439b Author: Xin Long <lucien.xin@xxxxxxxxx> Date: Fri Nov 4 17:45:15 2022 -0400 sctp: remove the unnecessary sinfo_stream check in sctp_prsctp_prune_unsent [ Upstream commit 9f0b773210c27a8f5d98ddb2fc4ba60a42a3285f ] Since commit 5bbbbe32a431 ("sctp: introduce stream scheduler foundations"), sctp_stream_outq_migrate() has been called in sctp_stream_init/update to removes those chunks to streams higher than the new max. There is no longer need to do such check in sctp_prsctp_prune_unsent(). Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Stable-dep-of: 2f201ae14ae0 ("sctp: clear out_curr if all frag chunks of current msg are pruned") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index b3950963fc8f..6fcc4ff97f94 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -384,6 +384,7 @@ static int sctp_prsctp_prune_unsent(struct sctp_association *asoc, { struct sctp_outq *q = &asoc->outqueue; struct sctp_chunk *chk, *temp; + struct sctp_stream_out *sout; q->sched->unsched_all(&asoc->stream); @@ -398,12 +399,9 @@ static int sctp_prsctp_prune_unsent(struct sctp_association *asoc, sctp_sched_dequeue_common(q, chk); asoc->sent_cnt_removable--; asoc->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++; - if (chk->sinfo.sinfo_stream < asoc->stream.outcnt) { - struct sctp_stream_out *streamout = - SCTP_SO(&asoc->stream, chk->sinfo.sinfo_stream); - streamout->ext->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++; - } + sout = SCTP_SO(&asoc->stream, chk->sinfo.sinfo_stream); + sout->ext->abandoned_unsent[SCTP_PR_INDEX(PRIO)]++; msg_len -= chk->skb->truesize + sizeof(struct sctp_chunk); sctp_chunk_free(chk);