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Commit 407900cf authored by Peter Korsgaard's avatar Peter Korsgaard Committed by David S. Miller
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dm9601: fix reception of full size ethernet frames on dm9620/dm9621a 



dm9620/dm9621a require room for 4 byte padding even in dm9601 (3 byte
header) mode.

Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarPeter Korsgaard <peter@korsgaard.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3b387892

drivers/net/usb/dm9601.c

+6 −1
Original line number Original line Diff line number Diff line
@@ -364,7 +364,12 @@ static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf) 
	dev->net->ethtool_ops = &dm9601_ethtool_ops;

	dev->net->ethtool_ops = &dm9601_ethtool_ops;

	dev->net->hard_header_len += DM_TX_OVERHEAD;

	dev->net->hard_header_len += DM_TX_OVERHEAD;

	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;

	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;

	dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD;



	/* dm9620/21a require room for 4 byte padding, even in dm9601

	 * mode, so we need +1 to be able to receive full size

	 * ethernet frames.

	 */

	dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD + 1;





	dev->mii.dev = dev->net;

	dev->mii.dev = dev->net;

	dev->mii.mdio_read = dm9601_mdio_read;

	dev->mii.mdio_read = dm9601_mdio_read;