diff options
| author | Sritej Velaga <sritej.velaga@qlogic.com> | 2010-10-04 04:20:16 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-10-04 22:46:52 -0700 |
| commit | 0bd9e6a964d86a19f54a9ba31168a37d64e451d1 (patch) | |
| tree | 7c2c35cb539201e59a5f955a39d21af6b195a44e | |
| parent | aef3d898276e046bfa877cd20b8ee269b85161cd (diff) | |
qlcnic: set mtu lower limit
Setting mtu < 68 is not supported.
Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/qlcnic/qlcnic.h | 1 | ||||
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_hw.c | 6 |
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h index 9d80171a1fb..42a288348ac 100644 --- a/drivers/net/qlcnic/qlcnic.h +++ b/drivers/net/qlcnic/qlcnic.h @@ -95,6 +95,7 @@ #define FIRST_PAGE_GROUP_END 0x100000 #define P3_MAX_MTU (9600) +#define P3_MIN_MTU (68) #define QLCNIC_MAX_ETHERHDR 32 /* This contains some padding */ #define QLCNIC_P3_RX_BUF_MAX_LEN (QLCNIC_MAX_ETHERHDR + ETH_DATA_LEN) diff --git a/drivers/net/qlcnic/qlcnic_hw.c b/drivers/net/qlcnic/qlcnic_hw.c index 712cfabc282..9d3e16dbd04 100644 --- a/drivers/net/qlcnic/qlcnic_hw.c +++ b/drivers/net/qlcnic/qlcnic_hw.c @@ -758,9 +758,9 @@ int qlcnic_change_mtu(struct net_device *netdev, int mtu) struct qlcnic_adapter *adapter = netdev_priv(netdev); int rc = 0; - if (mtu > P3_MAX_MTU) { - dev_err(&adapter->netdev->dev, "mtu > %d bytes unsupported\n", - P3_MAX_MTU); + if (mtu < P3_MIN_MTU || mtu > P3_MAX_MTU) { + dev_err(&adapter->netdev->dev, "%d bytes < mtu < %d bytes" + " not supported\n", P3_MAX_MTU, P3_MIN_MTU); return -EINVAL; } |