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| author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2011-11-15 15:29:55 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-11-16 17:43:08 -0500 |
| commit | 02b3a5524f6253113a46ebc283cc5ec392c34d7a (patch) | |
| tree | 22780a851f9a6ee1f389e29e5357f823ad11ab8d /net/core | |
| parent | bc5787c6125cc2c868eaace46c46ce6e83dcfcb6 (diff) | |
| download | linux-stable-02b3a5524f6253113a46ebc283cc5ec392c34d7a.tar.gz linux-stable-02b3a5524f6253113a46ebc283cc5ec392c34d7a.tar.bz2 linux-stable-02b3a5524f6253113a46ebc283cc5ec392c34d7a.zip | |
net: ethtool: break association of ETH_FLAG_* with NETIF_F_*
This is the only place left where dev->features are directly
exposed to userspace.
I know checkpatch.pl complains about __ethtool_{get,set}_flags(), but
the code is easier to read this way.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/ethtool.c | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c index db8a77bb557b..a354919a32ac 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -240,32 +240,45 @@ static int ethtool_set_one_feature(struct net_device *dev, return 0; } -/* the following list of flags are the same as their associated - * NETIF_F_xxx values in include/linux/netdevice.h - */ -static const u32 flags_dup_features = - (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | ETH_FLAG_NTUPLE | - ETH_FLAG_RXHASH); +#define ETH_ALL_FLAGS (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \ + ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH) +#define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_RX | \ + NETIF_F_HW_VLAN_TX | NETIF_F_NTUPLE | NETIF_F_RXHASH) static u32 __ethtool_get_flags(struct net_device *dev) { - return dev->features & flags_dup_features; + u32 flags = 0; + + if (dev->features & NETIF_F_LRO) flags |= ETH_FLAG_LRO; + if (dev->features & NETIF_F_HW_VLAN_RX) flags |= ETH_FLAG_RXVLAN; + if (dev->features & NETIF_F_HW_VLAN_TX) flags |= ETH_FLAG_TXVLAN; + if (dev->features & NETIF_F_NTUPLE) flags |= ETH_FLAG_NTUPLE; + if (dev->features & NETIF_F_RXHASH) flags |= ETH_FLAG_RXHASH; + + return flags; } static int __ethtool_set_flags(struct net_device *dev, u32 data) { + u32 features = 0; u32 changed; - if (data & ~flags_dup_features) + if (data & ~ETH_ALL_FLAGS) return -EINVAL; + if (data & ETH_FLAG_LRO) features |= NETIF_F_LRO; + if (data & ETH_FLAG_RXVLAN) features |= NETIF_F_HW_VLAN_RX; + if (data & ETH_FLAG_TXVLAN) features |= NETIF_F_HW_VLAN_TX; + if (data & ETH_FLAG_NTUPLE) features |= NETIF_F_NTUPLE; + if (data & ETH_FLAG_RXHASH) features |= NETIF_F_RXHASH; + /* allow changing only bits set in hw_features */ - changed = (data ^ dev->features) & flags_dup_features; + changed = (features ^ dev->features) & ETH_ALL_FEATURES; if (changed & ~dev->hw_features) return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP; dev->wanted_features = - (dev->wanted_features & ~changed) | (data & dev->hw_features); + (dev->wanted_features & ~changed) | (features & changed); __netdev_update_features(dev); |