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net, team, bonding: Add netdev_base_features helper

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Both bonding and team driver have logic to derive the base feature
flags before iterating over their slave devices to refine the set
via netdev_increment_features().

Add a small helper netdev_base_features() so this can be reused
instead of having it open-coded multiple times.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Nikolay Aleksandrov <razor@blackwall.org>
Cc: Ido Schimmel <idosch@idosch.org>
Cc: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20241210141245.327886-1-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Daniel Borkmann 2024-12-10 15:12:41 +01:00 committed by Paolo Abeni
parent f8d4bc4550
commit d2516c3a53
3 changed files with 9 additions and 5 deletions
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4
drivers/net/bonding/bond_main.c
View File

@ -1520,9 +1520,7 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
struct slave *slave; struct slave *slave;
mask = features; mask = features;
features = netdev_base_features(features);
features &= ~NETIF_F_ONE_FOR_ALL;
features |= NETIF_F_ALL_FOR_ALL;
bond_for_each_slave(bond, slave, iter) { bond_for_each_slave(bond, slave, iter) {
features = netdev_increment_features(features, features = netdev_increment_features(features,

3
drivers/net/team/team_core.c
View File

@ -2011,8 +2011,7 @@ static netdev_features_t team_fix_features(struct net_device *dev,
netdev_features_t mask; netdev_features_t mask;
mask = features; mask = features;
features &= ~NETIF_F_ONE_FOR_ALL; features = netdev_base_features(features);
features |= NETIF_F_ALL_FOR_ALL;
rcu_read_lock(); rcu_read_lock();
list_for_each_entry_rcu(port, &team->port_list, list) { list_for_each_entry_rcu(port, &team->port_list, list) {

7
include/linux/netdev_features.h
View File

@ -253,4 +253,11 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start)
NETIF_F_GSO_UDP_TUNNEL | \ NETIF_F_GSO_UDP_TUNNEL | \
NETIF_F_GSO_UDP_TUNNEL_CSUM) NETIF_F_GSO_UDP_TUNNEL_CSUM)
static inline netdev_features_t netdev_base_features(netdev_features_t features)
{
features &= ~NETIF_F_ONE_FOR_ALL;
features |= NETIF_F_ALL_FOR_ALL;
return features;
}
#endif /* _LINUX_NETDEV_FEATURES_H */ #endif /* _LINUX_NETDEV_FEATURES_H */