git: ecfe48f28a40 - stable/13 - sctp: add an assert

The branch stable/13 has been updated by tuexen:

URL: https://cgit.FreeBSD.org/src/commit/?id=ecfe48f28a40700f4950c2e5bd21ebc49b942bf4

commit ecfe48f28a40700f4950c2e5bd21ebc49b942bf4
Author:     Michael Tuexen <tuexen@FreeBSD.org>
AuthorDate: 2023-08-13 20:47:43 +0000
Commit:     Michael Tuexen <tuexen@FreeBSD.org>
CommitDate: 2024-01-11 12:40:56 +0000

    sctp: add an assert
    
    This enforces a condition mentioned in a comment.
    
    (cherry picked from commit e8eb0b713426fe9edbf56719351850fa9469286a)
---
 sys/netinet/sctputil.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/netinet/sctputil.c b/sys/netinet/sctputil.c
index 72edf4dd66c9..e21fbe041291 100644
--- a/sys/netinet/sctputil.c
+++ b/sys/netinet/sctputil.c
@@ -3636,7 +3636,6 @@ sctp_notify_adaptation_layer(struct sctp_tcb *stcb)
 	    &stcb->sctp_socket->so_rcv, 1, SCTP_READ_LOCK_NOT_HELD, SCTP_SO_NOT_LOCKED);
 }
 
-/* This always must be called with the read-queue LOCKED in the INP */
 static void
 sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb, uint32_t error,
     uint32_t val, int so_locked)
@@ -3652,6 +3651,8 @@ sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb, uint32_t error,
 		return;
 	}
 
+	SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep);
+
 	m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_pdapi_event), 0, M_NOWAIT, 1, MT_DATA);
 	if (m_notify == NULL)
 		/* no space left */