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-rw-r--r--net/core/ethtool.c28
1 files changed, 5 insertions, 23 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index a0f4964033d2..5d42fae520d9 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -144,31 +144,13 @@ u32 ethtool_op_get_flags(struct net_device *dev)
}
EXPORT_SYMBOL(ethtool_op_get_flags);
-int ethtool_op_set_flags(struct net_device *dev, u32 data)
+int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported)
{
- const struct ethtool_ops *ops = dev->ethtool_ops;
- unsigned long features = dev->features;
-
- if (data & ETH_FLAG_LRO)
- features |= NETIF_F_LRO;
- else
- features &= ~NETIF_F_LRO;
-
- if (data & ETH_FLAG_NTUPLE) {
- if (!ops->set_rx_ntuple)
- return -EOPNOTSUPP;
- features |= NETIF_F_NTUPLE;
- } else {
- /* safe to clear regardless */
- features &= ~NETIF_F_NTUPLE;
- }
-
- if (data & ETH_FLAG_RXHASH)
- features |= NETIF_F_RXHASH;
- else
- features &= ~NETIF_F_RXHASH;
+ if (data & ~supported)
+ return -EINVAL;
- dev->features = features;
+ dev->features = ((dev->features & ~flags_dup_features) |
+ (data & flags_dup_features));
return 0;
}
EXPORT_SYMBOL(ethtool_op_set_flags);