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Commit 4e4db200 authored by Michał Mirosław's avatar Michał Mirosław Committed by David S. Miller
Browse files

net: Fix ETHTOOL_GFEATURES compatibility 



Implement getting rx checksum state for not updated drivers.

Signed-off-by: default avatarMichał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 14d1232f

net/core/ethtool.c

+14 −0
Original line number Diff line number Diff line
@@ -168,6 +168,18 @@ EXPORT_SYMBOL(ethtool_ntuple_flush); 


#define ETHTOOL_DEV_FEATURE_WORDS	1



static void ethtool_get_features_compat(struct net_device *dev,

	struct ethtool_get_features_block *features)

{

	if (!dev->ethtool_ops)

		return;



	/* getting RX checksum */

	if (dev->ethtool_ops->get_rx_csum)

		if (dev->ethtool_ops->get_rx_csum(dev))

			features[0].active |= NETIF_F_RXCSUM;

}



static int ethtool_get_features(struct net_device *dev, void __user *useraddr)

{

	struct ethtool_gfeatures cmd = {
@@ -185,6 +197,8 @@ static int ethtool_get_features(struct net_device *dev, void __user *useraddr) 
	u32 __user *sizeaddr;

	u32 copy_size;



	ethtool_get_features_compat(dev, features);



	sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);

	if (get_user(copy_size, sizeaddr))

		return -EFAULT;