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ixgbe: limit small mtu to minimum for ipv4 support 

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Jesse Brandeburg 2008-09-11 19:56:28 -07:00 committed by Jeff Garzik
parent f47cf66e9c
commit 42c783c5b1
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ixgbe/ixgbe_main.c
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@ -2839,8 +2839,8 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
struct ixgbe_adapter *adapter = netdev_priv(netdev);
int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
if ((max_frame < (ETH_ZLEN + ETH_FCS_LEN)) ||
(max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE))
/* MTU < 68 is an error and causes problems on some kernels */
if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE))
return -EINVAL;
DPRINTK(PROBE, INFO, "changing MTU from %d to %d\n",