diff options
| author |   Alexander Duyck <alexander.h.duyck@intel.com> | 2009-10-27 23:52:13 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-10-28 03:26:06 -0700 |
| commit | c809d2276cb035228cd9e83e2ca7d2b902c61cef (patch) | |
| tree | c0fc93c5179142f6950a87ed3adea90911146eb4 | |
| parent | igb: add pci_dev in few spots to clean up use of dev_err/info/warn (diff) | |
| download | linux-dev-c809d2276cb035228cd9e83e2ca7d2b902c61cef.tar.xz linux-dev-c809d2276cb035228cd9e83e2ca7d2b902c61cef.zip | |
igb: limit minimum mtu to 68 to keep ip bound to interface
Limit the minimum mtu to 68 in order to prevent ip from being unbound from
the interface.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/igb/igb_main.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 264ff005710b..846e64f0ad86 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -3709,8 +3709,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu) int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; u32 rx_buffer_len, i; - if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) || - (max_frame > MAX_JUMBO_FRAME_SIZE)) { + if ((new_mtu < 68) || (max_frame > MAX_JUMBO_FRAME_SIZE)) { dev_err(&pdev->dev, "Invalid MTU setting\n"); return -EINVAL; } |