diff options
Diffstat (limited to 'net/core/xdp.c')
| -rw-r--r-- | net/core/xdp.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/net/core/xdp.c b/net/core/xdp.c index 247797168579..528d4b37983d 100644 --- a/net/core/xdp.c +++ b/net/core/xdp.c @@ -780,20 +780,34 @@ static int __init xdp_metadata_init(void) } late_initcall(xdp_metadata_init); +void xdp_set_features_flag(struct net_device *dev, xdp_features_t val) +{ + val &= NETDEV_XDP_ACT_MASK; + if (dev->xdp_features == val) + return; + + dev->xdp_features = val; + + if (dev->reg_state == NETREG_REGISTERED) + call_netdevice_notifiers(NETDEV_XDP_FEAT_CHANGE, dev); +} +EXPORT_SYMBOL_GPL(xdp_set_features_flag); + void xdp_features_set_redirect_target(struct net_device *dev, bool support_sg) { - dev->xdp_features |= NETDEV_XDP_ACT_NDO_XMIT; - if (support_sg) - dev->xdp_features |= NETDEV_XDP_ACT_NDO_XMIT_SG; + xdp_features_t val = (dev->xdp_features | NETDEV_XDP_ACT_NDO_XMIT); - call_netdevice_notifiers(NETDEV_XDP_FEAT_CHANGE, dev); + if (support_sg) + val |= NETDEV_XDP_ACT_NDO_XMIT_SG; + xdp_set_features_flag(dev, val); } EXPORT_SYMBOL_GPL(xdp_features_set_redirect_target); void xdp_features_clear_redirect_target(struct net_device *dev) { - dev->xdp_features &= ~(NETDEV_XDP_ACT_NDO_XMIT | - NETDEV_XDP_ACT_NDO_XMIT_SG); - call_netdevice_notifiers(NETDEV_XDP_FEAT_CHANGE, dev); + xdp_features_t val = dev->xdp_features; + + val &= ~(NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_NDO_XMIT_SG); + xdp_set_features_flag(dev, val); } EXPORT_SYMBOL_GPL(xdp_features_clear_redirect_target); |