netdev - [PATCH net 2/2] Revert "sctp: Fix SHUTDOWN CTSN Ack in the peer restart case"

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Date:   Mon,  3 May 2021 04:36:59 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        jere.leppanen@...ia.com
Subject: [PATCH net 2/2] Revert "sctp: Fix SHUTDOWN CTSN Ack in the peer restart case"

This reverts commit 12dfd78e3a74825e6f0bc8df7ef9f938fbc6bfe3.

This can be reverted as shutdown and cookie_ack chunk are using the
same asoc since commit 35b4f24415c8 ("sctp: do asoc update earlier
in sctp_sf_do_dupcook_a").

Reported-by: Jere Leppänen <jere.leppanen@...ia.com>
Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 net/sctp/sm_make_chunk.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 5f9a7c0..5b44d22 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -858,11 +858,7 @@ struct sctp_chunk *sctp_make_shutdown(const struct sctp_association *asoc,
 	struct sctp_chunk *retval;
 	__u32 ctsn;
 
-	if (chunk && chunk->asoc)
-		ctsn = sctp_tsnmap_get_ctsn(&chunk->asoc->peer.tsn_map);
-	else
-		ctsn = sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map);
-
+	ctsn = sctp_tsnmap_get_ctsn(&asoc->peer.tsn_map);
 	shut.cum_tsn_ack = htonl(ctsn);
 
 	retval = sctp_make_control(asoc, SCTP_CID_SHUTDOWN, 0,
-- 
2.1.0