genode/dde_linux/patches/csum.patch
2012-07-09 17:53:43 +02:00

18 lines
579 B
Diff

diff -r 4d66ab105ff0 drivers/net/usb/smsc95xx.c
--- a/drivers/net/usb/smsc95xx.c Fri Jul 06 17:50:36 2012 +0200
+++ b/drivers/net/usb/smsc95xx.c Fri Jul 06 17:55:13 2012 +0200
@@ -1032,7 +1032,12 @@
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);
}