diff options
| author | Zhang Shengju <zhangshengju@cmss.chinamobile.com> | 2017-09-22 23:57:49 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-09-25 16:26:09 -0700 |
| commit | e94cd8113ce63bca34040aae52d0603baf6ec07c (patch) | |
| tree | 983dee3efd8758ef006e6d60fdc654d17d1bc7f8 /drivers/net | |
| parent | 1b17ca044a82342fb96529e1bdff6da7af90bc53 (diff) | |
| download | blackbird-op-linux-e94cd8113ce63bca34040aae52d0603baf6ec07c.tar.gz blackbird-op-linux-e94cd8113ce63bca34040aae52d0603baf6ec07c.zip | |
net: remove MTU limits for dummy and ifb device
These two drivers (dummy and ifb) call 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.
These two devices should not have limits on MTU. This patch set their
min_mtu/max_mtu to 0. So that dev_set_mtu() will not check the mtu range,
and can be set with any value.
CC: Eric Dumazet <edumazet@google.com>
CC: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/dummy.c | 2 | ||||
| -rw-r--r-- | drivers/net/ifb.c | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c index e31ab3b94c6f..58483af80bdb 100644 --- a/drivers/net/dummy.c +++ b/drivers/net/dummy.c @@ -353,7 +353,7 @@ static void dummy_setup(struct net_device *dev) eth_hw_addr_random(dev); dev->min_mtu = 0; - dev->max_mtu = ETH_MAX_MTU; + dev->max_mtu = 0; } static int dummy_validate(struct nlattr *tb[], struct nlattr *data[], diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c index 8870bd2a2e8a..0008da7e9d4c 100644 --- a/drivers/net/ifb.c +++ b/drivers/net/ifb.c @@ -231,6 +231,9 @@ static void ifb_setup(struct net_device *dev) eth_hw_addr_random(dev); dev->needs_free_netdev = true; dev->priv_destructor = ifb_dev_free; + + dev->min_mtu = 0; + dev->max_mtu = 0; } static netdev_tx_t ifb_xmit(struct sk_buff *skb, struct net_device *dev) |
