diff options
| author | Haishuang Yan <yanhaishuang@cmss.chinamobile.com> | 2019-10-08 17:56:03 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 14:51:17 +0100 |
| commit | c0b6d8544b73bdf5ff7d5fb78b5a422415a4f19d (patch) | |
| tree | 1c3b065262b357b17fbc7457caa241a13debf2a3 | |
| parent | 255aba7762bf83096d8437dc7c583ef9abea10a1 (diff) | |
ip6erspan: remove the incorrect mtu limit for ip6erspan
[ Upstream commit 4123f637a5129470ff9d3cb00a5a4e213f2e15cc ]
ip6erspan driver calls ether_setup(), after commit 61e84623ace3
("net: centralize net_device min/max MTU checking"), the range
of mtu is [min_mtu, max_mtu], which is [68, 1500] by default.
It causes the dev mtu of the erspan device to not be greater
than 1500, this limit value is not correct for ip6erspan tap
device.
Fixes: 61e84623ace3 ("net: centralize net_device min/max MTU checking")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Acked-by: William Tu <u9012063@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/ipv6/ip6_gre.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index b3515a4f1303..1f2d0022ba6f 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -2218,6 +2218,7 @@ static void ip6erspan_tap_setup(struct net_device *dev) { ether_setup(dev); + dev->max_mtu = 0; dev->netdev_ops = &ip6erspan_netdev_ops; dev->needs_free_netdev = true; dev->priv_destructor = ip6gre_dev_free; |