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Commit ab969596 authored by Ben Dooks's avatar Ben Dooks Committed by Greg Kroah-Hartman
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usbnet: smsc95xx: fix rx packet alignment 



[ Upstream commit 810eeb1f41a9a272eedc94ca18c072e75678ede4 ]

The smsc95xx driver already takes into account the NET_IP_ALIGN
parameter when setting up the receive packet data, which means
we do not need to worry about aligning the packets in the usbnet
driver.

Adding the EVENT_NO_IP_ALIGN means that the IPv4 header is now
passed to the ip_rcv() routine with the start on an aligned address.

Tested on Raspberry Pi B3.

Signed-off-by: default avatarBen Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 5ca33f79

drivers/net/usb/smsc95xx.c

+1 −0
Original line number Diff line number Diff line
@@ -1295,6 +1295,7 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) 
		dev->net->features |= NETIF_F_RXCSUM;



	dev->net->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;

	set_bit(EVENT_NO_IP_ALIGN, &dev->flags);



	smsc95xx_init_mac_address(dev);