From 8b1efc0f83f1f75b8f85c70d2211007de8fd7633 Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Thu, 20 Oct 2016 23:25:27 -0400 Subject: net: remove MTU limits on a few ether_setup callers These few drivers call ether_setup(), but have no ndo_change_mtu, and thus were overlooked for changes to MTU range checking behavior. They previously had no range checks, so for feature-parity, set their min_mtu to 0 and max_mtu to ETH_MAX_MTU (65535), instead of the 68 and 1500 inherited from the ether_setup() changes. Fine-tuning can come after we get back to full feature-parity here. CC: netdev@vger.kernel.org Reported-by: Asbjoern Sloth Toennesen CC: Asbjoern Sloth Toennesen CC: R Parameswaran Signed-off-by: Jarod Wilson Signed-off-by: David S. Miller --- net/l2tp/l2tp_eth.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/l2tp') diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index 965f7e344cef..e2c6ae024565 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -259,6 +259,8 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p session->mtu = dev->mtu - session->hdr_len; dev->mtu = session->mtu; dev->needed_headroom += session->hdr_len; + dev->min_mtu = 0; + dev->max_mtu = ETH_MAX_MTU; priv = netdev_priv(dev); priv->dev = dev; -- cgit v1.2.3