4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Xin Long <[email protected]>

[ Upstream commit 12480e3b16982c4026de10dd8155823219cd6391 ]

According to rfc8260#section-4.3.2, SCTP_SS_DEFAULT is required to
defined as SCTP_SS_FCFS or SCTP_SS_RR.

SCTP_SS_FCFS is used for SCTP_SS_DEFAULT's value in this patch.

Fixes: 5bbbbe32a431 ("sctp: introduce stream scheduler foundations")
Reported-by: Jianwen Ji <[email protected]>
Signed-off-by: Xin Long <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 include/uapi/linux/sctp.h |    1 +
 net/sctp/outqueue.c       |    2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/include/uapi/linux/sctp.h
+++ b/include/uapi/linux/sctp.h
@@ -1151,6 +1151,7 @@ struct sctp_add_streams {
 /* SCTP Stream schedulers */
 enum sctp_sched_type {
        SCTP_SS_FCFS,
+       SCTP_SS_DEFAULT = SCTP_SS_FCFS,
        SCTP_SS_PRIO,
        SCTP_SS_RR,
        SCTP_SS_MAX = SCTP_SS_RR
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -212,7 +212,7 @@ void sctp_outq_init(struct sctp_associat
        INIT_LIST_HEAD(&q->retransmit);
        INIT_LIST_HEAD(&q->sacked);
        INIT_LIST_HEAD(&q->abandoned);
-       sctp_sched_set_sched(asoc, SCTP_SS_FCFS);
+       sctp_sched_set_sched(asoc, SCTP_SS_DEFAULT);
 }
 
 /* Free the outqueue structure and any related pending chunks.


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