gso: limit udp gso to egress-only virtual devices
authorWillem de Bruijn <willemb@google.com>
Tue, 22 May 2018 15:34:40 +0000 (11:34 -0400)
committerDavid S. Miller <davem@davemloft.net>
Wed, 23 May 2018 18:48:44 +0000 (14:48 -0400)
commit8eea1ca82be90a7e7a4624ab9cb323574a5f71df
tree2d8e6cc7152b058c03b71eec0673bc97d7f3a46e
parentff06342cbca0ec2c0d5da8685d2691e2d0e9764a
gso: limit udp gso to egress-only virtual devices

Until the udp receive stack supports large packets (UDP GRO), GSO
packets must not loop from the egress to the ingress path.

Revert the change that added NETIF_F_GSO_UDP_L4 to various virtual
devices through NETIF_F_GSO_ENCAP_ALL as this included devices that
may loop packets, such as veth and macvlan.

Instead add it to specific devices that forward to another device's
egress path, bonding and team.

Fixes: 83aa025f535f ("udp: add gso support to virtual devices")
CC: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/bonding/bond_main.c
drivers/net/team/team.c
include/linux/netdev_features.h