From 0e91796eb46e29edc791131c832a2232bcaed9dd Mon Sep 17 00:00:00 2001
From: David Woodhouse <dwmw2@infradead.org>
Date: Tue, 20 May 2008 14:36:14 -0700
Subject: [PATCH] net: Fix call to ->change_rx_flags(dev, IFF_MULTICAST) in
 dev_change_flags()

Am I just being particularly dim today, or can the call to
dev->change_rx_flags(dev, IFF_MULTICAST) in dev_change_flags() never
happen?

We've just set dev->flags = flags & IFF_MULTICAST, effectively. So the
condition '(dev->flags ^ flags) & IFF_MULTICAST' is _never_ going to be
true.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index ce88c0d3e354..582963077877 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3141,7 +3141,7 @@ int dev_change_flags(struct net_device *dev, unsigned flags)
 	 *	Load in the correct multicast list now the flags have changed.
 	 */
 
-	if (dev->change_rx_flags && (dev->flags ^ flags) & IFF_MULTICAST)
+	if (dev->change_rx_flags && (old_flags ^ flags) & IFF_MULTICAST)
 		dev->change_rx_flags(dev, IFF_MULTICAST);
 
 	dev_set_rx_mode(dev);
-- 
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