diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2011-03-23 02:54:49 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-28 10:35:24 +0400 |
| commit | 673e63c688f43104c73aad8ea4237f7ad41fa14d (patch) | |
| tree | 3d11c6f74a5d0823020db8642c3f2cf062347afb /drivers/net/vmxnet3/vmxnet3_ethtool.c | |
| parent | b5845f9834d8f4c79d324bc59b99dbcf0a40f428 (diff) | |
| download | linux-673e63c688f43104c73aad8ea4237f7ad41fa14d.tar.xz | |
net: fix ethtool->set_flags not intended -EINVAL return value
After commit d5dbda23804156ae6f35025ade5307a49d1db6d7 "ethtool: Add
support for vlan accleration.", drivers that have NETIF_F_HW_VLAN_TX,
and/or NETIF_F_HW_VLAN_RX feature, but do not allow enable/disable vlan
acceleration via ethtool set_flags, always return -EINVAL from that
function. Fix by returning -EINVAL only if requested features do not
match current settings and can not be changed by driver.
Change any driver that define ethtool->set_flags to use
ethtool_invalid_flags() to avoid similar problems in the future
(also on drivers that do not have the problem).
Tested with modified (to reproduce this bug) myri10ge driver.
Cc: stable@kernel.org # 2.6.37+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vmxnet3/vmxnet3_ethtool.c')
| -rw-r--r-- | drivers/net/vmxnet3/vmxnet3_ethtool.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c index 81254be85b92..51f2ef142a5b 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*/ |