net: Fix too optimistic NETIF_F_HW_CSUM features

NETIF_F_HW_CSUM is a superset of NETIF_F_IP_CSUM+NETIF_F_IPV6_CSUM, but
some drivers miss the difference. Fix this and also fix UFO dependency
on checksumming offload as it makes the same mistake in assumptions.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c
index afb7506..58e7903 100644
--- a/drivers/net/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/pch_gbe/pch_gbe_main.c
@@ -2319,7 +2319,7 @@
 	netdev->watchdog_timeo = PCH_GBE_WATCHDOG_PERIOD;
 	netif_napi_add(netdev, &adapter->napi,
 		       pch_gbe_napi_poll, PCH_GBE_RX_WEIGHT);
-	netdev->features = NETIF_F_HW_CSUM | NETIF_F_GRO;
+	netdev->features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_GRO;
 	pch_gbe_set_ethtool_ops(netdev);
 
 	pch_gbe_mac_reset_hw(&adapter->hw);
@@ -2358,9 +2358,9 @@
 	pch_gbe_check_options(adapter);
 
 	if (adapter->tx_csum)
-		netdev->features |= NETIF_F_HW_CSUM;
+		netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
 	else
-		netdev->features &= ~NETIF_F_HW_CSUM;
+		netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
 
 	/* initialize the wol settings based on the eeprom settings */
 	adapter->wake_up_evt = PCH_GBE_WL_INIT_SETTING;