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[3/4] net: Fix ETHTOOL_GFEATURES compatibility

Message ID 901aca0071da9f2fb1d46080441501309f210fb2.1298429033.git.mirq-linux@rere.qmqm.pl
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Michał Mirosław Feb. 23, 2011, 2:52 a.m. UTC 
Implement getting rx checksum state for not updated drivers.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
 net/core/ethtool.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
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Patch

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 66cdc76..69a3edc 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -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;