diff options
Diffstat (limited to 'target/linux/generic/patches-4.4/099-0001-usbnet-allow-mini-drivers-to-consume-L2-headers.patch')
| -rw-r--r-- | target/linux/generic/patches-4.4/099-0001-usbnet-allow-mini-drivers-to-consume-L2-headers.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.4/099-0001-usbnet-allow-mini-drivers-to-consume-L2-headers.patch b/target/linux/generic/patches-4.4/099-0001-usbnet-allow-mini-drivers-to-consume-L2-headers.patch new file mode 100644 index 0000000000..a1f19ea18e --- /dev/null +++ b/target/linux/generic/patches-4.4/099-0001-usbnet-allow-mini-drivers-to-consume-L2-headers.patch @@ -0,0 +1,39 @@ +From 81e0ce79f2919dbd5f025894d29aa806af8695c7 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no> +Date: Thu, 3 Dec 2015 19:24:20 +0100 +Subject: [PATCH] usbnet: allow mini-drivers to consume L2 headers +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Assume the minidriver has taken care of all L2 header parsing +if it sets skb->protocol. This allows the minidriver to +support non-ethernet L2 headers, and even operate without +any L2 header at all. + +Signed-off-by: Bjørn Mork <bjorn@mork.no> +Acked-by: Oliver Neukum <oneukum@suse.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/usb/usbnet.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c +index 0744bf2ef2d6..0b0ba7ef14e4 100644 +--- a/drivers/net/usb/usbnet.c ++++ b/drivers/net/usb/usbnet.c +@@ -324,7 +324,10 @@ void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb) + return; + } + +- skb->protocol = eth_type_trans (skb, dev->net); ++ /* only update if unset to allow minidriver rx_fixup override */ ++ if (skb->protocol == 0) ++ skb->protocol = eth_type_trans (skb, dev->net); ++ + dev->net->stats.rx_packets++; + dev->net->stats.rx_bytes += skb->len; + +-- +2.7.4 + |