[Bridge] [PATCH net] bridge: Fix network header pointer for vlan tagged packets

David Miller davem at davemloft.net
Wed Jul 29 19:21:23 UTC 2015

From: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
Date: Tue, 28 Jul 2015 19:05:37 +0900

> There are several devices that can receive vlan tagged packets with
> CHECKSUM_PARTIAL like tap, possibly veth and xennet.
> When (multiple) vlan tagged packets with CHECKSUM_PARTIAL are forwarded
> by bridge to a device with the IP_CSUM feature, they end up with checksum
> error because before entering bridge, the network header is set to
> ETH_HLEN (not including vlan header length) in __netif_receive_skb_core(),
> get_rps_cpu(), or drivers' rx functions, and nobody fixes the pointer later.
> Since the network header is exepected to be ETH_HLEN in flow-dissection
> and hash-calculation in RPS in rx path, and since the header pointer fix
> is needed only in tx path, set the appropriate network header on forwarding
> packets.
> Signed-off-by: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>

Applied, thank you.

More information about the Bridge mailing list