netdev - Re: [PATCH net] sctp: allow receiving msg when TCP-style sk is in CLOSED state

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Message-Id: <20160730.220710.6804773780755703.davem@davemloft.net>
Date:	Sat, 30 Jul 2016 22:07:10 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	lucien.xin@...il.com
Cc:	netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
	marcelo.leitner@...il.com, vyasevich@...il.com,
	daniel@...earbox.net
Subject: Re: [PATCH net] sctp: allow receiving msg when TCP-style sk is in
 CLOSED state

From: Xin Long <lucien.xin@...il.com>
Date: Sat, 30 Jul 2016 14:14:41 +0800

> Commit 141ddefce7c8 ("sctp: change sk state to CLOSED instead of
> CLOSING in sctp_sock_migrate") changed sk state to CLOSED if the
> assoc is closed when sctp_accept clones a new sk.
> 
> If there is still data in sk receive queue, users will not be able
> to read it any more, as sctp_recvmsg returns directly if sk state
> is CLOSED.
> 
> This patch is to add CLOSED state check in sctp_recvmsg to allow
> reading data from TCP-style sk with CLOSED state as what TCP does.
> 
> Signed-off-by: Xin Long <lucien.xin@...il.com>

Applied.