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From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
To: sasha.levin@oracle.com, stable@vger.kernel.org
Cc: netdev@vger.kernel.org, davem@davemloft.net,
	kristian.evensen@gmail.com, jiri@resnulli.us,
	j.vosburgh@gmail.com, vfalico@gmail.com,
	gospo@cumulusnetworks.com,
	Nicolas Dichtel <nicolas.dichtel@6wind.com>
Subject: [PATCH linux-3.18.y] rtnl: restore notifications for deleted interfaces
Date: Thu, 16 Jul 2015 11:31:43 +0200	[thread overview]
Message-ID: <1437039103-4288-1-git-send-email-nicolas.dichtel@6wind.com> (raw)
In-Reply-To: <55A77422.8010305@6wind.com>

The commit 984ff7a3e060 is an upstream backport. In fact, it depends on
commit 395eea6ccf2b ("rtnetlink: delay RTM_DELLINK notification until after ndo_uninit()")
which has not been backported in 3.18.y.

Before commit 395eea6ccf2b, rollback_registered_many() uses rtmsg_ifinfo().
The call to this function is done with dev->reg_state set to
NETREG_UNREGISTERING, thus testing this reg_state in rtmsg_ifinfo() is
wrong.

This patch partially reverts commit 984ff7a3e060.

Fixes: 984ff7a3e060 ("rtnl/bond: don't send rtnl msg for unregistered iface")
Reported-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
 net/core/rtnetlink.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 24d3242f0e01..c522f7a00eab 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2229,9 +2229,6 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned int change,
 	int err = -ENOBUFS;
 	size_t if_info_size;
 
-	if (dev->reg_state != NETREG_REGISTERED)
-		return;
-
 	skb = nlmsg_new((if_info_size = if_nlmsg_size(dev, 0)), flags);
 	if (skb == NULL)
 		goto errout;
-- 
2.4.2

  reply	other threads:[~2015-07-16  9:32 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-11 14:25 [PATCH net] rtnl: don't send rtnl msg for unregistered iface Nicolas Dichtel
2015-05-11 15:37 ` Jiri Pirko
2015-05-11 16:04   ` Nicolas Dichtel
2015-05-11 16:15     ` Nicolas Dichtel
2015-05-11 17:53       ` Jiri Pirko
2015-05-11 22:15         ` Andy Gospodarek
2015-05-12  8:43         ` Nicolas Dichtel
2015-05-12 15:03         ` [PATCH net v2] rtnl/bond: " Nicolas Dichtel
2015-05-12 15:06           ` Nicolas Dichtel
2015-05-12 15:17             ` [PATCH net v3] " Nicolas Dichtel
2015-05-12 15:58               ` Jiri Pirko
2015-05-12 16:10                 ` Nicolas Dichtel
2015-05-12 16:14                   ` Jiri Pirko
2015-05-13 12:19                     ` [PATCH net v4] " Nicolas Dichtel
2015-05-13 12:24                       ` Jiri Pirko
2015-05-13 12:36                         ` Nicolas Dichtel
2015-05-18  2:44                       ` David Miller
2015-07-13 14:11                       ` Kristian Evensen
2015-07-15 15:07                         ` Nicolas Dichtel
2015-07-16  9:06                         ` Nicolas Dichtel
2015-07-16  9:31                           ` Nicolas Dichtel [this message]
2015-05-12 17:12                 ` [PATCH net v3] " Andy Gospodarek
2015-05-13 12:01                   ` Nicolas Dichtel
2015-05-13 14:43                     ` Andy Gospodarek

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