From: Petri Gynther <pgynther@google.com>
Date: Thu, 20 Aug 2009 09:21:27 +0000 (-0700)
Subject: ibm_newemac: emac_close() needs to call netif_carrier_off()
X-Git-Tag: v2.6.31-rc8~45^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3b325f9c25be6d504bc73afce7f92d0e25001d7;p=pandora-kernel.git

ibm_newemac: emac_close() needs to call netif_carrier_off()

When ibm_newemac netdev instance is shutdown with "ifconfig down",
the netdev interface does not go properly down. netif_carrier_ok()
keeps returning TRUE even after "ifconfig down".

The problem can be seen when ibm_newemac instances are slaves of
a bonding interface. The bonding interface code uses netif_carrier_ok()
to determine the link status of its slaves. When ibm_newemac slave is
shutdown with "ifconfig down", the bonding interface won't detect any
link status change because netif_carrier_ok() keeps returning TRUE.

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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