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Commit 340ae165 authored by Michał Mirosław's avatar Michał Mirosław Committed by David S. Miller
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ethtool: factorize ethtool_get_strings() and ethtool_get_sset_count() 



This is needed for unified offloads patch.

Signed-off-by: default avatarMichał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 212b573f

net/core/ethtool.c

+23 −12
Original line number Diff line number Diff line
@@ -172,6 +172,25 @@ EXPORT_SYMBOL(ethtool_ntuple_flush); 


/* Handlers for each ethtool command */



static int __ethtool_get_sset_count(struct net_device *dev, int sset)

{

	const struct ethtool_ops *ops = dev->ethtool_ops;



	if (ops && ops->get_sset_count && ops->get_strings)

		return ops->get_sset_count(dev, sset);

	else

		return -EOPNOTSUPP;

}



static void __ethtool_get_strings(struct net_device *dev,

	u32 stringset, u8 *data)

{

	const struct ethtool_ops *ops = dev->ethtool_ops;



	/* ops->get_strings is valid because checked earlier */

	ops->get_strings(dev, stringset, data);

}



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

{

	struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
@@ -252,14 +271,10 @@ static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev, 
						    void __user *useraddr)

{

	struct ethtool_sset_info info;

	const struct ethtool_ops *ops = dev->ethtool_ops;

	u64 sset_mask;

	int i, idx = 0, n_bits = 0, ret, rc;

	u32 *info_buf = NULL;



	if (!ops->get_sset_count)

		return -EOPNOTSUPP;



	if (copy_from_user(&info, useraddr, sizeof(info)))

		return -EFAULT;
@@ -286,7 +301,7 @@ static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev, 
		if (!(sset_mask & (1ULL << i)))

			continue;



		rc = ops->get_sset_count(dev, i);

		rc = __ethtool_get_sset_count(dev, i);

		if (rc >= 0) {

			info.sset_mask |= (1ULL << i);

			info_buf[idx++] = rc;
@@ -1287,17 +1302,13 @@ static int ethtool_self_test(struct net_device *dev, char __user *useraddr) 
static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)

{

	struct ethtool_gstrings gstrings;

	const struct ethtool_ops *ops = dev->ethtool_ops;

	u8 *data;

	int ret;



	if (!ops->get_strings || !ops->get_sset_count)

		return -EOPNOTSUPP;



	if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))

		return -EFAULT;



	ret = ops->get_sset_count(dev, gstrings.string_set);

	ret = __ethtool_get_sset_count(dev, gstrings.string_set);

	if (ret < 0)

		return ret;
@@ -1307,7 +1318,7 @@ static int ethtool_get_strings(struct net_device *dev, void __user *useraddr) 
	if (!data)

		return -ENOMEM;



	ops->get_strings(dev, gstrings.string_set, data);

	__ethtool_get_strings(dev, gstrings.string_set, data);



	ret = -EFAULT;

	if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))