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tg3: Refine tg3_vlan_rx_register() 

tg3_vlan_rx_register() touches the hardware if netif_running() returns
false.  This patch fixes the problem.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2009-02-25 14:23:56 +00:00 committed by David S. Miller
parent 7e5856bd96
commit 844b3eed8a
1 changed files with 7 additions and 4 deletions
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11
drivers/net/tg3.c
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@ -9896,8 +9896,12 @@ static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
{
struct tg3 *tp = netdev_priv(dev);
if (netif_running(dev))
tg3_netif_stop(tp);
if (!netif_running(dev)) {
tp->vlgrp = grp;
return;
}
tg3_netif_stop(tp);
tg3_full_lock(tp, 0);
@ -9906,8 +9910,7 @@ static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
/* Update RX_MODE_KEEP_VLAN_TAG bit in RX_MODE register. */
__tg3_set_rx_mode(dev);
if (netif_running(dev))
tg3_netif_start(tp);
tg3_netif_start(tp);
tg3_full_unlock(tp);
}