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authorJarod Wilson <jarod@redhat.com>2016-10-21 05:25:27 +0200
committerDavid S. Miller <davem@davemloft.net>2016-10-21 19:57:50 +0200
commit8b1efc0f83f1f75b8f85c70d2211007de8fd7633 (patch)
tree80b313286f4f191d241a803d5f8690b74187a4e9 /net/l2tp
parenthv_netvsc: fix a race between netvsc_send() and netvsc_init_buf() (diff)
downloadlinux-8b1efc0f83f1f75b8f85c70d2211007de8fd7633.tar.xz
linux-8b1efc0f83f1f75b8f85c70d2211007de8fd7633.zip
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 <asbjorn@asbjorn.st> CC: Asbjoern Sloth Toennesen <asbjorn@asbjorn.st> CC: R Parameswaran <parameswaran.r7@gmail.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp')
-rw-r--r--net/l2tp/l2tp_eth.c2
1 files changed, 2 insertions, 0 deletions
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;