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Message-Id: <20190919214800.864480929@linuxfoundation.org>
Date: Fri, 20 Sep 2019 00:03:14 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Nikolay Aleksandrov <nikolay@...ulusnetworks.com>,
Nicolas Dichtel <nicolas.dichtel@...nd.com>,
"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.9 01/74] bridge/mdb: remove wrong use of NLM_F_MULTI
From: Nicolas Dichtel <nicolas.dichtel@...nd.com>
[ Upstream commit 94a72b3f024fc7e9ab640897a1e38583a470659d ]
NLM_F_MULTI must be used only when a NLMSG_DONE message is sent at the end.
In fact, NLMSG_DONE is sent only at the end of a dump.
Libraries like libnl will wait forever for NLMSG_DONE.
Fixes: 949f1e39a617 ("bridge: mdb: notify on router port add and del")
CC: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
Acked-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
net/bridge/br_mdb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -372,7 +372,7 @@ static int nlmsg_populate_rtr_fill(struc
struct nlmsghdr *nlh;
struct nlattr *nest;
- nlh = nlmsg_put(skb, pid, seq, type, sizeof(*bpm), NLM_F_MULTI);
+ nlh = nlmsg_put(skb, pid, seq, type, sizeof(*bpm), 0);
if (!nlh)
return -EMSGSIZE;
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