On Wed, Mar 7, 2018 at 3:38 PM, William Tu <u9012...@gmail.com> wrote:
> When sending a packet to a tunnel device, the dev's hard_header_len
> could be larger than the skb->len in function packet_length().
> In the case of ip6gretap/erspan, hard_header_len = LL_MAX_HEADER + t_hlen,
> which is around 180, and an ARP packet sent to this tunnel has
> skb->len = 42. This causes the 'unsign int length' to become super
> large because it is negative value, causing the later ovs_vport_send
> to drop it due to over-mtu size. The patch fixes it by setting it to 0.
> Signed-off-by: William Tu <u9012...@gmail.com>
> replace the return type from unsigned int to int
Acked-by: Pravin B Shelar <pshe...@ovn.org>