Use netdev_feature_xxx helpers to replace the logical operation for netdev features.
Signed-off-by: Jian Shen shenjian15@huawei.com --- drivers/net/xen-netfront.c | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-)
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index e40de65..53408f7 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -240,7 +240,7 @@ static const struct attribute_group xennet_dev_group;
static bool xennet_can_sg(struct net_device *dev) { - return dev->features & NETIF_F_SG; + return netdev_feature_test_bit(NETIF_F_SG_BIT, dev->features); }
@@ -1345,28 +1345,29 @@ static void xennet_fix_features(struct net_device *dev, { struct netfront_info *np = netdev_priv(dev);
- if (*features & NETIF_F_SG && + if (netdev_feature_test_bit(NETIF_F_SG_BIT, *features) && !xenbus_read_unsigned(np->xbdev->otherend, "feature-sg", 0)) - *features &= ~NETIF_F_SG; + netdev_feature_clear_bit(NETIF_F_SG_BIT, features);
- if (*features & NETIF_F_IPV6_CSUM && + if (netdev_feature_test_bit(NETIF_F_IPV6_CSUM_BIT, *features) && !xenbus_read_unsigned(np->xbdev->otherend, "feature-ipv6-csum-offload", 0)) - *features &= ~NETIF_F_IPV6_CSUM; + netdev_feature_clear_bit(NETIF_F_IPV6_CSUM_BIT, features);
- if (*features & NETIF_F_TSO && + if (netdev_feature_test_bit(NETIF_F_TSO_BIT, *features) && !xenbus_read_unsigned(np->xbdev->otherend, "feature-gso-tcpv4", 0)) - *features &= ~NETIF_F_TSO; + netdev_feature_clear_bit(NETIF_F_TSO_BIT, features);
- if (*features & NETIF_F_TSO6 && + if (netdev_feature_test_bit(NETIF_F_TSO6_BIT, *features) && !xenbus_read_unsigned(np->xbdev->otherend, "feature-gso-tcpv6", 0)) - *features &= ~NETIF_F_TSO6; + netdev_feature_clear_bit(NETIF_F_TSO6_BIT, features); }
static int xennet_set_features(struct net_device *dev, netdev_features_t features) { - if (!(features & NETIF_F_SG) && dev->mtu > ETH_DATA_LEN) { + if (!netdev_feature_test_bit(NETIF_F_SG_BIT, features) && + dev->mtu > ETH_DATA_LEN) { netdev_info(dev, "Reducing MTU because no SG offload"); dev->mtu = ETH_DATA_LEN; } @@ -1543,19 +1544,21 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
netdev->netdev_ops = &xennet_netdev_ops;
- netdev->features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM | - NETIF_F_GSO_ROBUST; - netdev->hw_features = NETIF_F_SG | - NETIF_F_IPV6_CSUM | - NETIF_F_TSO | NETIF_F_TSO6; - + netdev_feature_zero(&netdev->features); + netdev_feature_set_bits(NETIF_F_IP_CSUM | NETIF_F_RXCSUM | + NETIF_F_GSO_ROBUST, &netdev->features); + netdev_feature_zero(&netdev->hw_features); + netdev_feature_set_bits(NETIF_F_SG | + NETIF_F_IPV6_CSUM | + NETIF_F_TSO | NETIF_F_TSO6, &netdev->features); /* * Assume that all hw features are available for now. This set * will be adjusted by the call to netdev_update_features() in * xennet_connect() which is the earliest point where we can * negotiate with the backend regarding supported features. */ - netdev->features |= netdev->hw_features; + netdev_feature_or(&netdev->features, netdev->features, + netdev->hw_features);
netdev->ethtool_ops = &xennet_ethtool_ops; netdev->min_mtu = ETH_MIN_MTU;