diff options
| -rw-r--r-- | drivers/net/netxen/netxen_nic_ethtool.c | 2 | ||||
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_ethtool.c | 2 | ||||
| -rw-r--r-- | drivers/net/s2io.c | 2 | ||||
| -rw-r--r-- | drivers/net/vmxnet3/vmxnet3_ethtool.c | 4 | ||||
| -rw-r--r-- | drivers/net/vxge/vxge-ethtool.c | 4 | ||||
| -rw-r--r-- | include/linux/ethtool.h | 1 | ||||
| -rw-r--r-- | net/core/ethtool.c | 17 |
7 files changed, 24 insertions, 8 deletions
diff --git a/drivers/net/netxen/netxen_nic_ethtool.c b/drivers/net/netxen/netxen_nic_ethtool.c index 653d308e0f5..3bdcc803ec6 100644 --- a/drivers/net/netxen/netxen_nic_ethtool.c +++ b/drivers/net/netxen/netxen_nic_ethtool.c @@ -871,7 +871,7 @@ static int netxen_nic_set_flags(struct net_device *netdev, u32 data) struct netxen_adapter *adapter = netdev_priv(netdev); int hw_lro; - if (data & ~ETH_FLAG_LRO) + if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO)) return -EINVAL; if (!(adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)) diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c index 4c14510e2a8..45b2755d6cb 100644 --- a/drivers/net/qlcnic/qlcnic_ethtool.c +++ b/drivers/net/qlcnic/qlcnic_ethtool.c @@ -1003,7 +1003,7 @@ static int qlcnic_set_flags(struct net_device *netdev, u32 data) struct qlcnic_adapter *adapter = netdev_priv(netdev); int hw_lro; - if (data & ~ETH_FLAG_LRO) + if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO)) return -EINVAL; if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)) diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index 2ad6364103e..356e74d20b8 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -6726,7 +6726,7 @@ static int s2io_ethtool_set_flags(struct net_device *dev, u32 data) int rc = 0; int changed = 0; - if (data & ~ETH_FLAG_LRO) + if (ethtool_invalid_flags(dev, data, ETH_FLAG_LRO)) return -EINVAL; if (data & ETH_FLAG_LRO) { diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c index 81254be85b9..51f2ef142a5 100644 --- a/drivers/net/vmxnet3/vmxnet3_ethtool.c +++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c @@ -304,8 +304,8 @@ vmxnet3_set_flags(struct net_device *netdev, u32 data) u8 lro_present = (netdev->features & NETIF_F_LRO) == 0 ? 0 : 1; unsigned long flags; - if (data & ~ETH_FLAG_LRO) - return -EOPNOTSUPP; + if (ethtool_invalid_flags(netdev, data, ETH_FLAG_LRO)) + return -EINVAL; if (lro_requested ^ lro_present) { /* toggle the LRO feature*/ diff --git a/drivers/net/vxge/vxge-ethtool.c b/drivers/net/vxge/vxge-ethtool.c index 1dd3a21b3a4..c5eb034107f 100644 --- a/drivers/net/vxge/vxge-ethtool.c +++ b/drivers/net/vxge/vxge-ethtool.c @@ -1117,8 +1117,8 @@ static int vxge_set_flags(struct net_device *dev, u32 data) struct vxgedev *vdev = netdev_priv(dev); enum vxge_hw_status status; - if (data & ~ETH_FLAG_RXHASH) - return -EOPNOTSUPP; + if (ethtool_invalid_flags(dev, data, ETH_FLAG_RXHASH)) + return -EINVAL; if (!!(data & ETH_FLAG_RXHASH) == vdev->devh->config.rth_en) return 0; diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index ae757bcf128..c8fcbdd2b0e 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -680,6 +680,7 @@ int ethtool_op_set_ufo(struct net_device *dev, u32 data); u32 ethtool_op_get_flags(struct net_device *dev); int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported); void ethtool_ntuple_flush(struct net_device *dev); +bool ethtool_invalid_flags(struct net_device *dev, u32 data, u32 supported); /** * ðtool_ops - Alter and report network device settings diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 24bd57493c0..74ead9eca12 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -141,9 +141,24 @@ u32 ethtool_op_get_flags(struct net_device *dev) } EXPORT_SYMBOL(ethtool_op_get_flags); +/* Check if device can enable (or disable) particular feature coded in "data" + * argument. Flags "supported" describe features that can be toggled by device. + * If feature can not be toggled, it state (enabled or disabled) must match + * hardcoded device features state, otherwise flags are marked as invalid. + */ +bool ethtool_invalid_flags(struct net_device *dev, u32 data, u32 supported) +{ + u32 features = dev->features & flags_dup_features; + /* "data" can contain only flags_dup_features bits, + * see __ethtool_set_flags */ + + return (features & ~supported) != (data & ~supported); +} +EXPORT_SYMBOL(ethtool_invalid_flags); + int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported) { - if (data & ~supported) + if (ethtool_invalid_flags(dev, data, supported)) return -EINVAL; dev->features = ((dev->features & ~flags_dup_features) | |