netdev - [RFCv2 net-next 062/167] xen-netback: use netdev feature helpers

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Message-ID: <20210929155334.12454-63-shenjian15@huawei.com>
Date:   Wed, 29 Sep 2021 23:51:49 +0800
From:   Jian Shen <shenjian15@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>, <andrew@...n.ch>,
        <hkallweit1@...il.com>
CC:     <netdev@...r.kernel.org>, <linuxarm@...neuler.org>
Subject: [RFCv2 net-next 062/167] xen-netback: use netdev feature helpers

Use netdev_feature_xxx helpers to replace the logical operation
for netdev features.

Signed-off-by: Jian Shen <shenjian15@...wei.com>
---
 drivers/net/xen-netback/interface.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index f964f0a402a6..8acfc1f1e716 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -380,15 +380,15 @@ static void xenvif_fix_features(struct net_device *dev,
 	struct xenvif *vif = netdev_priv(dev);
 
 	if (!vif->can_sg)
-		*features &= ~NETIF_F_SG;
+		netdev_feature_clear_bit(NETIF_F_SG_BIT, features);
 	if (~(vif->gso_mask) & GSO_BIT(TCPV4))
-		*features &= ~NETIF_F_TSO;
+		netdev_feature_clear_bit(NETIF_F_TSO_BIT, features);
 	if (~(vif->gso_mask) & GSO_BIT(TCPV6))
-		*features &= ~NETIF_F_TSO6;
+		netdev_feature_clear_bit(NETIF_F_TSO6_BIT, features);
 	if (!vif->ip_csum)
-		*features &= ~NETIF_F_IP_CSUM;
+		netdev_feature_clear_bit(NETIF_F_IP_CSUM_BIT, features);
 	if (!vif->ipv6_csum)
-		*features &= ~NETIF_F_IPV6_CSUM;
+		netdev_feature_clear_bit(NETIF_F_IPV6_CSUM_BIT, features);
 }
 
 static const struct xenvif_stat {
@@ -532,10 +532,13 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 	INIT_LIST_HEAD(&vif->fe_mcast_addr);
 
 	dev->netdev_ops	= &xenvif_netdev_ops;
-	dev->hw_features = NETIF_F_SG |
-		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
-		NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_FRAGLIST;
-	dev->features = dev->hw_features | NETIF_F_RXCSUM;
+	netdev_feature_zero(&dev->hw_features);
+	netdev_feature_set_bits(NETIF_F_SG |
+				NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+				NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_FRAGLIST,
+				&dev->hw_features);
+	netdev_feature_copy(&dev->features, dev->hw_features);
+	netdev_feature_set_bit(NETIF_F_RXCSUM_BIT, &dev->features);
 	dev->ethtool_ops = &xenvif_ethtool_ops;
 
 	dev->tx_queue_len = XENVIF_QUEUE_LENGTH;
-- 
2.33.0