genode/repos/dde_linux/patches/usb_csum.patch
2014-11-28 12:02:36 +01:00

24 lines
687 B
Diff

commit e3804842c60157bab0d5bf2daa42f99ec3f8499d
Author: Sebastian Sumpf <sebastian.sumpf@genode-labs.com>
Date: Mon Jun 2 13:24:37 2014 +0200
csum.patch
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1716,7 +1716,13 @@ static int smsc95xx_resume(struct usb_interface *intf)
static void smsc95xx_rx_csum_offload(struct sk_buff *skb)
{
- skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2);
+ /*
+ * Use bytewise access to avoid alignment issues on packets that have none
+ * aligned sizes
+ */
+ char *tail = skb_tail_pointer(skb);
+ skb->csum = (*(tail - 2) << 8) | *(tail - 1);
+
skb->ip_summed = CHECKSUM_COMPLETE;
skb_trim(skb, skb->len - 2);
}