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Commit afe12cc8 authored by Michał Mirosław's avatar Michał Mirosław Committed by David S. Miller
Browse files

net: introduce netdev_change_features() 



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: default avatarMichał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6c60408e

include/linux/netdevice.h

+1 −0
Original line number Diff line number Diff line
@@ -2565,6 +2565,7 @@ 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);

net/core/dev.c

+25 −0
Original line number Diff line number Diff line
@@ -5289,6 +5289,14 @@ 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))
@@ -5296,6 +5304,23 @@ 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