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Date:   Mon, 28 Jan 2019 15:08:25 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org
Cc:     Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Neil Horman <nhorman@...driver.com>, davem@...emloft.net
Subject: [PATCH net-next 03/24] sctp: use SCTP_FUTURE_ASSOC for SCTP_RTOINFO sockopt

Check with SCTP_FUTURE_ASSOC instead in
sctp_set/getsockopt_rtoinfo, it's compatible with 0.

Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 net/sctp/socket.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 4c43b95..48d6be8 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3145,7 +3145,8 @@ static int sctp_setsockopt_rtoinfo(struct sock *sk, char __user *optval, unsigne
 	asoc = sctp_id2assoc(sk, rtoinfo.srto_assoc_id);
 
 	/* Set the values to the specific association */
-	if (!asoc && rtoinfo.srto_assoc_id && sctp_style(sk, UDP))
+	if (!asoc && rtoinfo.srto_assoc_id != SCTP_FUTURE_ASSOC &&
+	    sctp_style(sk, UDP))
 		return -EINVAL;
 
 	rto_max = rtoinfo.srto_max;
@@ -6298,7 +6299,8 @@ static int sctp_getsockopt_rtoinfo(struct sock *sk, int len,
 
 	asoc = sctp_id2assoc(sk, rtoinfo.srto_assoc_id);
 
-	if (!asoc && rtoinfo.srto_assoc_id && sctp_style(sk, UDP))
+	if (!asoc && rtoinfo.srto_assoc_id != SCTP_FUTURE_ASSOC &&
+	    sctp_style(sk, UDP))
 		return -EINVAL;
 
 	/* Values corresponding to the specific association. */
-- 
2.1.0

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