net/gianfar: drop recycled skbs on MTU change

The size for skbs which is added to the recycled list is using the
current descriptor size which is current MTU. gfar_new_skb() is also
using this size. So after changing or alteast increasing the MTU all
recycled skbs should be dropped.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sebastian Andrzej Siewior 2010-05-04 22:30:47 +00:00 committed by David S. Miller
parent 7cff0943a1
commit 7df9c43fbe

View File

@ -1649,6 +1649,7 @@ static void free_skb_resources(struct gfar_private *priv)
sizeof(struct rxbd8) * priv->total_rx_ring_size,
priv->tx_queue[0]->tx_bd_base,
priv->tx_queue[0]->tx_bd_dma_base);
skb_queue_purge(&priv->rx_recycle);
}
void gfar_start(struct net_device *dev)
@ -2088,7 +2089,6 @@ static int gfar_close(struct net_device *dev)
disable_napi(priv);
skb_queue_purge(&priv->rx_recycle);
cancel_work_sync(&priv->reset_task);
stop_gfar(dev);