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authorDavid S. Miller <davem@davemloft.net>2011-05-11 18:26:15 (GMT)
committerDavid S. Miller <davem@davemloft.net>2011-05-11 18:26:58 (GMT)
commit3c709f8fb43e07a0403bba4a8ca7ba00ab874994 (patch)
tree9efc1e2bf6930851f0224f525b6cde0f5297fa61 /drivers/net/usb/ipheth.c
parent0074820978004cc484b132d7a9ce0df414660d9d (diff)
parent9bbc052d5e63512b0ce4e201ea97e12fba9fda82 (diff)
downloadlinux-3c709f8fb43e07a0403bba4a8ca7ba00ab874994.tar.xz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-3.6
Conflicts: drivers/net/benet/be_main.c
Diffstat (limited to 'drivers/net/usb/ipheth.c')
-rw-r--r--drivers/net/usb/ipheth.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 7d42f9a..81126ff 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -65,6 +65,7 @@
#define IPHETH_USBINTF_PROTO 1
#define IPHETH_BUF_SIZE 1516
+#define IPHETH_IP_ALIGN 2 /* padding at front of URB */
#define IPHETH_TX_TIMEOUT (5 * HZ)
#define IPHETH_INTFNUM 2
@@ -202,18 +203,21 @@ static void ipheth_rcvbulk_callback(struct urb *urb)
return;
}
- len = urb->actual_length;
- buf = urb->transfer_buffer;
+ if (urb->actual_length <= IPHETH_IP_ALIGN) {
+ dev->net->stats.rx_length_errors++;
+ return;
+ }
+ len = urb->actual_length - IPHETH_IP_ALIGN;
+ buf = urb->transfer_buffer + IPHETH_IP_ALIGN;
- skb = dev_alloc_skb(NET_IP_ALIGN + len);
+ skb = dev_alloc_skb(len);
if (!skb) {
err("%s: dev_alloc_skb: -ENOMEM", __func__);
dev->net->stats.rx_dropped++;
return;
}
- skb_reserve(skb, NET_IP_ALIGN);
- memcpy(skb_put(skb, len), buf + NET_IP_ALIGN, len - NET_IP_ALIGN);
+ memcpy(skb_put(skb, len), buf, len);
skb->dev = dev->net;
skb->protocol = eth_type_trans(skb, dev->net);