@@ -2560,6 +2560,7 @@ u32 netdev_increment_features(u32 all, u32 one, u32 mask);
u32 netdev_fix_features(struct net_device *dev, u32 features);
int __netdev_update_features(struct net_device *dev);
void netdev_update_features(struct net_device *dev);
+void netdev_change_features(struct net_device *dev);
void netif_stacked_transfer_operstate(const struct net_device *rootdev,
struct net_device *dev);
@@ -5287,6 +5287,14 @@ int __netdev_update_features(struct net_device *dev)
return 1;
}
+/**
+ * netdev_update_features - recalculate device features
+ * @dev: the device to check
+ *
+ * Recalculate dev->features set and send notifications if it
+ * has changed. Should be called after driver or hardware dependent
+ * conditions might have changed that influence the features.
+ */
void netdev_update_features(struct net_device *dev)
{
if (__netdev_update_features(dev))
@@ -5295,6 +5303,23 @@ void netdev_update_features(struct net_device *dev)
EXPORT_SYMBOL(netdev_update_features);
/**
+ * netdev_change_features - recalculate device features
+ * @dev: the device to check
+ *
+ * Recalculate dev->features set and send notifications even
+ * if they have not changed. Should be called instead of
+ * netdev_update_features() if also dev->vlan_features might
+ * have changed to allow the changes to be propagated to stacked
+ * VLAN devices.
+ */
+void netdev_change_features(struct net_device *dev)
+{
+ __netdev_update_features(dev);
+ netdev_features_change(dev);
+}
+EXPORT_SYMBOL(netdev_change_features);
+
+/**
* netif_stacked_transfer_operstate - transfer operstate
* @rootdev: the root or lower level device to transfer state from
* @dev: the device to transfer operstate to
It will be needed by bonding and other drivers changing vlan_features after ndo_init callback. As a bonus, this includes kernel-doc for netdev_update_features(). Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> --- include/linux/netdevice.h | 1 + net/core/dev.c | 25 +++++++++++++++++++++++++ 2 files changed, 26 insertions(+), 0 deletions(-)