[ETHTOOL] Provide default behaviors for a few ethtool sub-ioctls

For the operations
	get-tx-csum
	get-sg
	get-tso
	get-ufo
the default ethtool_op_xxx behavior is fine for all drivers, so we
permit op==NULL to imply the default behavior.

This provides a more uniform behavior across all drivers, eliminating
ethtool(8) "ioctl not supported" errors on older drivers that had
not been updated for the latest sub-ioctls.

The ethtool_op_xxx() functions are left exported, in case anyone
wishes to call them directly from a driver-private implementation --
a not-uncommon case.  Should an ethtool_op_xxx() helper remain unused
for a while, except by net/core/ethtool.c, we can un-export it at a
later date.

[ Resolved conflicts with set/get value ethtool patch... -DaveM ]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/8139cp.c

@@ -1572,11 +1572,8 @@ static const struct ethtool_ops cp_ethtool_ops = {
 	.set_msglevel		= cp_set_msglevel,
 	.get_rx_csum		= cp_get_rx_csum,
 	.set_rx_csum		= cp_set_rx_csum,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.set_tx_csum		= ethtool_op_set_tx_csum, /* local! */
-	.get_sg			= ethtool_op_get_sg,
 	.set_sg			= ethtool_op_set_sg,
-	.get_tso		= ethtool_op_get_tso,
 	.set_tso		= ethtool_op_set_tso,
 	.get_regs		= cp_get_regs,
 	.get_wol		= cp_get_wol,

drivers/net/atl1/atl1_ethtool.c

@@ -489,15 +489,12 @@ const struct ethtool_ops atl1_ethtool_ops = {
 	.get_pauseparam		= atl1_get_pauseparam,
 	.set_pauseparam 	= atl1_set_pauseparam,
 	.get_rx_csum		= atl1_get_rx_csum,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.set_tx_csum		= ethtool_op_set_tx_hw_csum,
 	.get_link		= ethtool_op_get_link,
-	.get_sg			= ethtool_op_get_sg,
 	.set_sg			= ethtool_op_set_sg,
 	.get_strings		= atl1_get_strings,
 	.nway_reset		= atl1_nway_reset,
 	.get_ethtool_stats	= atl1_get_ethtool_stats,
 	.get_stats_count	= atl1_get_stats_count,
-	.get_tso		= ethtool_op_get_tso,
 	.set_tso		= ethtool_op_set_tso,
 };

drivers/net/bnx2.c

@@ -6257,11 +6257,8 @@ static const struct ethtool_ops bnx2_ethtool_ops = {
 	.set_pauseparam		= bnx2_set_pauseparam,
 	.get_rx_csum		= bnx2_get_rx_csum,
 	.set_rx_csum		= bnx2_set_rx_csum,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.set_tx_csum		= bnx2_set_tx_csum,
-	.get_sg			= ethtool_op_get_sg,
 	.set_sg			= ethtool_op_set_sg,
-	.get_tso		= ethtool_op_get_tso,
 	.set_tso		= bnx2_set_tso,
 	.self_test_count	= bnx2_self_test_count,
 	.self_test		= bnx2_self_test,

drivers/net/bonding/bond_main.c

@@ -4202,10 +4202,6 @@ static void bond_ethtool_get_drvinfo(struct net_device *bond_dev,
 }
 
 static const struct ethtool_ops bond_ethtool_ops = {
-	.get_tx_csum		= ethtool_op_get_tx_csum,
-	.get_tso		= ethtool_op_get_tso,
-	.get_ufo		= ethtool_op_get_ufo,
-	.get_sg			= ethtool_op_get_sg,
 	.get_drvinfo		= bond_ethtool_get_drvinfo,
 };
 

drivers/net/chelsio/cxgb2.c

@@ -794,9 +794,7 @@ static const struct ethtool_ops t1_ethtool_ops = {
 	.set_pauseparam    = set_pauseparam,
 	.get_rx_csum       = get_rx_csum,
 	.set_rx_csum       = set_rx_csum,
-	.get_tx_csum       = ethtool_op_get_tx_csum,
 	.set_tx_csum       = ethtool_op_set_tx_csum,
-	.get_sg            = ethtool_op_get_sg,
 	.set_sg            = ethtool_op_set_sg,
 	.get_link          = ethtool_op_get_link,
 	.get_strings       = get_strings,
@@ -804,7 +802,6 @@ static const struct ethtool_ops t1_ethtool_ops = {
 	.get_ethtool_stats = get_stats,
 	.get_regs_len      = get_regs_len,
 	.get_regs          = get_regs,
-	.get_tso           = ethtool_op_get_tso,
 	.set_tso           = set_tso,
 };
 

drivers/net/cxgb3/cxgb3_main.c

@@ -1634,9 +1634,7 @@ static const struct ethtool_ops cxgb_ethtool_ops = {
 	.set_pauseparam = set_pauseparam,
 	.get_rx_csum = get_rx_csum,
 	.set_rx_csum = set_rx_csum,
-	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = ethtool_op_set_tx_csum,
-	.get_sg = ethtool_op_get_sg,
 	.set_sg = ethtool_op_set_sg,
 	.get_link = ethtool_op_get_link,
 	.get_strings = get_strings,
@@ -1647,7 +1645,6 @@ static const struct ethtool_ops cxgb_ethtool_ops = {
 	.get_regs_len = get_regs_len,
 	.get_regs = get_regs,
 	.get_wol = get_wol,
-	.get_tso = ethtool_op_get_tso,
 	.set_tso = ethtool_op_set_tso,
 };
 

drivers/net/e1000/e1000_ethtool.c

@@ -1965,9 +1965,7 @@ static const struct ethtool_ops e1000_ethtool_ops = {
 	.set_rx_csum            = e1000_set_rx_csum,
 	.get_tx_csum            = e1000_get_tx_csum,
 	.set_tx_csum            = e1000_set_tx_csum,
-	.get_sg                 = ethtool_op_get_sg,
 	.set_sg                 = ethtool_op_set_sg,
-	.get_tso                = ethtool_op_get_tso,
 	.set_tso                = e1000_set_tso,
 	.self_test_count        = e1000_diag_test_count,
 	.self_test              = e1000_diag_test,

drivers/net/ehea/ehea_ethtool.c

@@ -262,9 +262,6 @@ const struct ethtool_ops ehea_ethtool_ops = {
 	.get_msglevel = ehea_get_msglevel,
 	.set_msglevel = ehea_set_msglevel,
 	.get_link = ethtool_op_get_link,
-	.get_tx_csum = ethtool_op_get_tx_csum,
-	.get_sg = ethtool_op_get_sg,
-	.get_tso = ethtool_op_get_tso,
 	.set_tso = ethtool_op_set_tso,
 	.get_strings = ehea_get_strings,
 	.get_stats_count = ehea_get_stats_count,

drivers/net/epic100.c

@@ -1494,8 +1494,6 @@ static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_link		= netdev_get_link,
 	.get_msglevel		= netdev_get_msglevel,
 	.set_msglevel		= netdev_set_msglevel,
-	.get_sg			= ethtool_op_get_sg,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.begin			= ethtool_begin,
 	.complete		= ethtool_complete
 };

drivers/net/fealnx.c

@@ -1891,8 +1891,6 @@ static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_link		= netdev_get_link,
 	.get_msglevel		= netdev_get_msglevel,
 	.set_msglevel		= netdev_set_msglevel,
-	.get_sg			= ethtool_op_get_sg,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 };
 
 static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)

drivers/net/fec_8xx/fec_main.c

@@ -1041,9 +1041,7 @@ static const struct ethtool_ops fec_ethtool_ops = {
 	.get_link	= ethtool_op_get_link,
 	.get_msglevel	= fec_get_msglevel,
 	.set_msglevel	= fec_set_msglevel,
-	.get_tx_csum	= ethtool_op_get_tx_csum,
 	.set_tx_csum	= ethtool_op_set_tx_csum,	/* local! */
-	.get_sg		= ethtool_op_get_sg,
 	.set_sg		= ethtool_op_set_sg,
 	.get_regs	= fec_get_regs,
 };

drivers/net/forcedeth.c

@@ -4710,7 +4710,6 @@ static const struct ethtool_ops ops = {
 	.get_regs_len = nv_get_regs_len,
 	.get_regs = nv_get_regs,
 	.nway_reset = nv_nway_reset,
-	.get_tso = ethtool_op_get_tso,
 	.set_tso = nv_set_tso,
 	.get_ringparam = nv_get_ringparam,
 	.set_ringparam = nv_set_ringparam,
@@ -4718,9 +4717,7 @@ static const struct ethtool_ops ops = {
 	.set_pauseparam = nv_set_pauseparam,
 	.get_rx_csum = nv_get_rx_csum,
 	.set_rx_csum = nv_set_rx_csum,
-	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = nv_set_tx_csum,
-	.get_sg = ethtool_op_get_sg,
 	.set_sg = nv_set_sg,
 	.get_strings = nv_get_strings,
 	.get_stats_count = nv_get_stats_count,

drivers/net/fs_enet/fs_enet-main.c

@@ -907,9 +907,7 @@ static const struct ethtool_ops fs_ethtool_ops = {
 	.get_link = ethtool_op_get_link,
 	.get_msglevel = fs_get_msglevel,
 	.set_msglevel = fs_set_msglevel,
-	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = ethtool_op_set_tx_csum,	/* local! */
-	.get_sg = ethtool_op_get_sg,
 	.set_sg = ethtool_op_set_sg,
 	.get_regs = fs_get_regs,
 };

drivers/net/ibm_emac/ibm_emac_core.c

@@ -1900,8 +1900,6 @@ static const struct ethtool_ops emac_ethtool_ops = {
 	.get_ethtool_stats = emac_ethtool_get_ethtool_stats,
 
 	.get_link = ethtool_op_get_link,
-	.get_tx_csum = ethtool_op_get_tx_csum,
-	.get_sg = ethtool_op_get_sg,
 };
 
 static int emac_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)

drivers/net/ibmveth.c

@@ -821,15 +821,11 @@ static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_drvinfo		= netdev_get_drvinfo,
 	.get_settings		= netdev_get_settings,
 	.get_link		= netdev_get_link,
-	.get_sg			= ethtool_op_get_sg,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.set_tx_csum		= ibmveth_set_tx_csum,
 	.get_rx_csum		= ibmveth_get_rx_csum,
 	.set_rx_csum		= ibmveth_set_rx_csum,
-	.get_tso			= ethtool_op_get_tso,
-	.get_ufo			= ethtool_op_get_ufo,
 	.get_strings		= ibmveth_get_strings,
-	.get_stats_count		= ibmveth_get_stats_count,
+	.get_stats_count	= ibmveth_get_stats_count,
 	.get_ethtool_stats	= ibmveth_get_ethtool_stats,
 };
 

drivers/net/ixgb/ixgb_ethtool.c

@@ -713,11 +713,9 @@ static const struct ethtool_ops ixgb_ethtool_ops = {
 	.set_rx_csum = ixgb_set_rx_csum,
 	.get_tx_csum = ixgb_get_tx_csum,
 	.set_tx_csum = ixgb_set_tx_csum,
-	.get_sg	= ethtool_op_get_sg,
 	.set_sg	= ethtool_op_set_sg,
 	.get_msglevel = ixgb_get_msglevel,
 	.set_msglevel = ixgb_set_msglevel,
-	.get_tso = ethtool_op_get_tso,
 	.set_tso = ixgb_set_tso,
 	.get_strings = ixgb_get_strings,
 	.phys_id = ixgb_phys_id,

drivers/net/loopback.c

@@ -192,7 +192,6 @@ static u32 always_on(struct net_device *dev)
 
 static const struct ethtool_ops loopback_ethtool_ops = {
 	.get_link		= always_on,
-	.get_tso		= ethtool_op_get_tso,
 	.set_tso		= ethtool_op_set_tso,
 	.get_tx_csum		= always_on,
 	.get_sg			= always_on,

drivers/net/macvlan.c

@@ -282,10 +282,6 @@ static u32 macvlan_ethtool_get_rx_csum(struct net_device *dev)
 static const struct ethtool_ops macvlan_ethtool_ops = {
 	.get_link		= ethtool_op_get_link,
 	.get_rx_csum		= macvlan_ethtool_get_rx_csum,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
-	.get_tso		= ethtool_op_get_tso,
-	.get_ufo		= ethtool_op_get_ufo,
-	.get_sg			= ethtool_op_get_sg,
 	.get_drvinfo		= macvlan_ethtool_get_drvinfo,
 };
 

drivers/net/mv643xx_eth.c

@@ -2735,7 +2735,6 @@ static const struct ethtool_ops mv643xx_ethtool_ops = {
 	.set_settings           = mv643xx_set_settings,
 	.get_drvinfo            = mv643xx_get_drvinfo,
 	.get_link               = mv643xx_eth_get_link,
-	.get_sg			= ethtool_op_get_sg,
 	.set_sg			= ethtool_op_set_sg,
 	.get_stats_count        = mv643xx_get_stats_count,
 	.get_ethtool_stats      = mv643xx_get_ethtool_stats,

drivers/net/myri10ge/myri10ge.c

@@ -1499,11 +1499,8 @@ static const struct ethtool_ops myri10ge_ethtool_ops = {
 	.get_ringparam = myri10ge_get_ringparam,
 	.get_rx_csum = myri10ge_get_rx_csum,
 	.set_rx_csum = myri10ge_set_rx_csum,
-	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = ethtool_op_set_tx_hw_csum,
-	.get_sg = ethtool_op_get_sg,
 	.set_sg = ethtool_op_set_sg,
-	.get_tso = ethtool_op_get_tso,
 	.set_tso = ethtool_op_set_tso,
 	.get_link = ethtool_op_get_link,
 	.get_strings = myri10ge_get_strings,

drivers/net/ne2k-pci.c

@@ -635,8 +635,6 @@ static void ne2k_pci_get_drvinfo(struct net_device *dev,
 
 static const struct ethtool_ops ne2k_pci_ethtool_ops = {
 	.get_drvinfo		= ne2k_pci_get_drvinfo,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
-	.get_sg			= ethtool_op_get_sg,
 };
 
 static void __devexit ne2k_pci_remove_one (struct pci_dev *pdev)

drivers/net/netxen/netxen_nic_ethtool.c

@@ -744,11 +744,8 @@ struct ethtool_ops netxen_nic_ethtool_ops = {
 	.get_ringparam = netxen_nic_get_ringparam,
 	.get_pauseparam = netxen_nic_get_pauseparam,
 	.set_pauseparam = netxen_nic_set_pauseparam,
-	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = ethtool_op_set_tx_csum,
-	.get_sg = ethtool_op_get_sg,
 	.set_sg = ethtool_op_set_sg,
-	.get_tso = ethtool_op_get_tso,
 	.set_tso = ethtool_op_set_tso,
 	.self_test_count = netxen_nic_diag_test_count,
 	.self_test = netxen_nic_diag_test,

drivers/net/pcnet32.c

@@ -1509,9 +1509,6 @@ static const struct ethtool_ops pcnet32_ethtool_ops = {
 	.get_link		= pcnet32_get_link,
 	.get_ringparam		= pcnet32_get_ringparam,
 	.set_ringparam		= pcnet32_set_ringparam,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
-	.get_sg			= ethtool_op_get_sg,
-	.get_tso		= ethtool_op_get_tso,
 	.get_strings		= pcnet32_get_strings,
 	.self_test_count	= pcnet32_self_test_count,
 	.self_test		= pcnet32_ethtool_test,

drivers/net/r8169.c

@@ -1061,11 +1061,8 @@ static const struct ethtool_ops rtl8169_ethtool_ops = {
 	.set_msglevel		= rtl8169_set_msglevel,
 	.get_rx_csum		= rtl8169_get_rx_csum,
 	.set_rx_csum		= rtl8169_set_rx_csum,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.set_tx_csum		= ethtool_op_set_tx_csum,
-	.get_sg			= ethtool_op_get_sg,
 	.set_sg			= ethtool_op_set_sg,
-	.get_tso		= ethtool_op_get_tso,
 	.set_tso		= ethtool_op_set_tso,
 	.get_regs		= rtl8169_get_regs,
 	.get_wol		= rtl8169_get_wol,

drivers/net/s2io.c

@@ -6326,13 +6326,10 @@ static const struct ethtool_ops netdev_ethtool_ops = {
 	.set_pauseparam = s2io_ethtool_setpause_data,
 	.get_rx_csum = s2io_ethtool_get_rx_csum,
 	.set_rx_csum = s2io_ethtool_set_rx_csum,
-	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = s2io_ethtool_op_set_tx_csum,
-	.get_sg = ethtool_op_get_sg,
 	.set_sg = ethtool_op_set_sg,
 	.get_tso = s2io_ethtool_op_get_tso,
 	.set_tso = s2io_ethtool_op_set_tso,
-	.get_ufo = ethtool_op_get_ufo,
 	.set_ufo = ethtool_op_set_ufo,
 	.self_test_count = s2io_ethtool_self_test_count,
 	.self_test = s2io_ethtool_test,

drivers/net/sc92031.c

@@ -1396,13 +1396,9 @@ static struct ethtool_ops sc92031_ethtool_ops = {
 	.set_wol		= sc92031_ethtool_set_wol,
 	.nway_reset		= sc92031_ethtool_nway_reset,
 	.get_link		= ethtool_op_get_link,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
-	.get_sg			= ethtool_op_get_sg,
-	.get_tso		= ethtool_op_get_tso,
 	.get_strings		= sc92031_ethtool_get_strings,
 	.get_stats_count	= sc92031_ethtool_get_stats_count,
 	.get_ethtool_stats	= sc92031_ethtool_get_ethtool_stats,
-	.get_ufo		= ethtool_op_get_ufo,
 };
 
 static int __devinit sc92031_probe(struct pci_dev *pdev,

drivers/net/skge.c

@@ -811,9 +811,7 @@ static const struct ethtool_ops skge_ethtool_ops = {
 	.set_pauseparam = skge_set_pauseparam,
 	.get_coalesce	= skge_get_coalesce,
 	.set_coalesce	= skge_set_coalesce,
-	.get_sg		= ethtool_op_get_sg,
 	.set_sg		= skge_set_sg,
-	.get_tx_csum	= ethtool_op_get_tx_csum,
 	.set_tx_csum	= skge_set_tx_csum,
 	.get_rx_csum	= skge_get_rx_csum,
 	.set_rx_csum	= skge_set_rx_csum,

drivers/net/sky2.c

@@ -3710,11 +3710,8 @@ static const struct ethtool_ops sky2_ethtool_ops = {
 	.get_eeprom_len	= sky2_get_eeprom_len,
 	.get_eeprom	= sky2_get_eeprom,
 	.set_eeprom	= sky2_set_eeprom,
-	.get_sg 	= ethtool_op_get_sg,
 	.set_sg 	= ethtool_op_set_sg,
-	.get_tx_csum	= ethtool_op_get_tx_csum,
 	.set_tx_csum	= sky2_set_tx_csum,
-	.get_tso	= ethtool_op_get_tso,
 	.set_tso	= sky2_set_tso,
 	.get_rx_csum	= sky2_get_rx_csum,
 	.set_rx_csum	= sky2_set_rx_csum,

drivers/net/spider_net_ethtool.c

@@ -188,7 +188,6 @@ const struct ethtool_ops spider_net_ethtool_ops = {
 	.nway_reset		= spider_net_ethtool_nway_reset,
 	.get_rx_csum		= spider_net_ethtool_get_rx_csum,
 	.set_rx_csum		= spider_net_ethtool_set_rx_csum,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.set_tx_csum		= ethtool_op_set_tx_csum,
 	.get_ringparam          = spider_net_ethtool_get_ringparam,
 	.get_strings		= spider_net_get_strings,

drivers/net/tg3.c

@@ -9278,11 +9278,8 @@ static const struct ethtool_ops tg3_ethtool_ops = {
 	.set_pauseparam		= tg3_set_pauseparam,
 	.get_rx_csum		= tg3_get_rx_csum,
 	.set_rx_csum		= tg3_set_rx_csum,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.set_tx_csum		= tg3_set_tx_csum,
-	.get_sg			= ethtool_op_get_sg,
 	.set_sg			= ethtool_op_set_sg,
-	.get_tso		= ethtool_op_get_tso,
 	.set_tso		= tg3_set_tso,
 	.self_test_count	= tg3_get_test_count,
 	.self_test		= tg3_self_test,

drivers/net/tulip/de2104x.c

@@ -1670,8 +1670,6 @@ static void de_get_regs(struct net_device *dev, struct ethtool_regs *regs,
 
 static const struct ethtool_ops de_ethtool_ops = {
 	.get_link		= ethtool_op_get_link,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
-	.get_sg			= ethtool_op_get_sg,
 	.get_drvinfo		= de_get_drvinfo,
 	.get_regs_len		= de_get_regs_len,
 	.get_settings		= de_get_settings,

drivers/net/tulip/winbond-840.c

@@ -1451,8 +1451,6 @@ static const struct ethtool_ops netdev_ethtool_ops = {
 	.get_link		= netdev_get_link,
 	.get_msglevel		= netdev_get_msglevel,
 	.set_msglevel		= netdev_set_msglevel,
-	.get_sg			= ethtool_op_get_sg,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)

drivers/net/typhoon.c

@@ -1236,11 +1236,8 @@ static const struct ethtool_ops typhoon_ethtool_ops = {
 	.set_wol		= typhoon_set_wol,
 	.get_link		= ethtool_op_get_link,
 	.get_rx_csum		= typhoon_get_rx_csum,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 	.set_tx_csum		= ethtool_op_set_tx_csum,
-	.get_sg			= ethtool_op_get_sg,
 	.set_sg			= ethtool_op_set_sg,
-	.get_tso		= ethtool_op_get_tso,
 	.set_tso		= ethtool_op_set_tso,
 	.get_ringparam		= typhoon_get_ringparam,
 };

drivers/net/ucc_geth_ethtool.c

@@ -373,9 +373,7 @@ static const struct ethtool_ops uec_ethtool_ops = {
 	.set_ringparam          = uec_set_ringparam,
 	.get_pauseparam         = uec_get_pauseparam,
 	.set_pauseparam         = uec_set_pauseparam,
-	.get_sg                 = ethtool_op_get_sg,
 	.set_sg                 = ethtool_op_set_sg,
-	.get_tso                = ethtool_op_get_tso,
 	.get_stats_count        = uec_get_stats_count,
 	.get_strings            = uec_get_strings,
 	.get_ethtool_stats      = uec_get_ethtool_stats,

drivers/net/via-rhine.c

@@ -1813,8 +1813,6 @@ static const struct ethtool_ops netdev_ethtool_ops = {
 	.set_msglevel		= netdev_set_msglevel,
 	.get_wol		= rhine_get_wol,
 	.set_wol		= rhine_set_wol,
-	.get_sg			= ethtool_op_get_sg,
-	.get_tx_csum		= ethtool_op_get_tx_csum,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)

drivers/net/xen-netfront.c

@@ -1617,11 +1617,8 @@ static void backend_changed(struct xenbus_device *dev,
 
 static struct ethtool_ops xennet_ethtool_ops =
 {
-	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = ethtool_op_set_tx_csum,
-	.get_sg = ethtool_op_get_sg,
 	.set_sg = xennet_set_sg,
-	.get_tso = ethtool_op_get_tso,
 	.set_tso = xennet_set_tso,
 	.get_link = ethtool_op_get_link,
 };

net/bridge/br_device.c

@@ -150,11 +150,8 @@ static int br_set_tx_csum(struct net_device *dev, u32 data)
 static struct ethtool_ops br_ethtool_ops = {
 	.get_drvinfo = br_getinfo,
 	.get_link = ethtool_op_get_link,
-	.get_sg = ethtool_op_get_sg,
 	.set_sg = br_set_sg,
-	.get_tx_csum = ethtool_op_get_tx_csum,
 	.set_tx_csum = br_set_tx_csum,
-	.get_tso = ethtool_op_get_tso,
 	.set_tso = br_set_tso,
 };
 

net/core/ethtool.c

@@ -893,21 +893,27 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 		break;
 	case ETHTOOL_GTXCSUM:
 		rc = ethtool_get_value(dev, useraddr, ethcmd,
-				       dev->ethtool_ops->get_tx_csum);
+				       (dev->ethtool_ops->get_tx_csum ?
+					dev->ethtool_ops->get_tx_csum :
+					ethtool_op_get_tx_csum));
 		break;
 	case ETHTOOL_STXCSUM:
 		rc = ethtool_set_tx_csum(dev, useraddr);
 		break;
 	case ETHTOOL_GSG:
 		rc = ethtool_get_value(dev, useraddr, ethcmd,
-				       dev->ethtool_ops->get_sg);
+				       (dev->ethtool_ops->get_sg ?
+					dev->ethtool_ops->get_sg :
+					ethtool_op_get_sg));
 		break;
 	case ETHTOOL_SSG:
 		rc = ethtool_set_sg(dev, useraddr);
 		break;
 	case ETHTOOL_GTSO:
 		rc = ethtool_get_value(dev, useraddr, ethcmd,
-				       dev->ethtool_ops->get_tso);
+				       (dev->ethtool_ops->get_tso ?
+					dev->ethtool_ops->get_tso :
+					ethtool_op_get_tso));
 		break;
 	case ETHTOOL_STSO:
 		rc = ethtool_set_tso(dev, useraddr);
@@ -929,7 +935,9 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 		break;
 	case ETHTOOL_GUFO:
 		rc = ethtool_get_value(dev, useraddr, ethcmd,
-				       dev->ethtool_ops->get_ufo);
+				       (dev->ethtool_ops->get_ufo ?
+					dev->ethtool_ops->get_ufo :
+					ethtool_op_get_ufo));
 		break;
 	case ETHTOOL_SUFO:
 		rc = ethtool_set_ufo(dev, useraddr);