ethtool: Provide a default implementation of ethtool_ops::get_drvinfo

The driver name and bus address for a net_device can normally be found
through the driver model now.  Instead of requiring drivers to provide
this information redundantly through the ethtool_ops::get_drvinfo
operation, use the driver model to do so if the driver does not define
the operation.  Since ETHTOOL_GDRVINFO no longer requires the driver
to implement any operations, do not require net_device::ethtool_ops to
be set either.

Remove implementations of get_drvinfo and ethtool_ops that provide
only this information.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 0 insertions, 18 deletions

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 6efca66b8766..4f123f869bdc 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -843,16 +843,7 @@ static netdev_tx_t hso_net_start_xmit(struct sk_buff *skb,
         return NETDEV_TX_OK;
 }
 
-static void hso_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
-{
-        struct hso_net *odev = netdev_priv(net);
-
-        strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
-        usb_make_path(odev->parent->usb, info->bus_info, sizeof info->bus_info);
-}
-
 static const struct ethtool_ops ops = {
-        .get_drvinfo = hso_get_drvinfo,
         .get_link = ethtool_op_get_link
 };
 
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 2b7b39cad1ce..5e98643a4a21 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -759,14 +759,6 @@ static int kaweth_close(struct net_device *net)
         return 0;
 }
 
-static void kaweth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
-        struct kaweth_device *kaweth = netdev_priv(dev);
-
-        strlcpy(info->driver, driver_name, sizeof(info->driver));
-        usb_make_path(kaweth->dev, info->bus_info, sizeof (info->bus_info));
-}
-
 static u32 kaweth_get_link(struct net_device *dev)
 {
         struct kaweth_device *kaweth = netdev_priv(dev);
@@ -775,7 +767,6 @@ static u32 kaweth_get_link(struct net_device *dev)
 }
 
 static const struct ethtool_ops ops = {
-        .get_drvinfo    = kaweth_get_drvinfo,
         .get_link       = kaweth_get_link
 };