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net: core: add __netdev_upper_dev_unlink()

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The netdev_upper_dev_unlink() has to work differently according to flags.
This idea is the same with __netdev_upper_dev_link().

In the following patches, new flags will be added.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Taehee Yoo 2020-09-25 18:13:02 +00:00 committed by David S. Miller
parent 1aad804990
commit fe8300fd8d
1 changed files with 16 additions and 10 deletions
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24
net/core/dev.c
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@ -7762,15 +7762,7 @@ int netdev_master_upper_dev_link(struct net_device *dev,
}
EXPORT_SYMBOL(netdev_master_upper_dev_link);
/**
* netdev_upper_dev_unlink - Removes a link to upper device
* @dev: device
* @upper_dev: new upper device
*
* Removes a link to device which is upper to this one. The caller must hold
* the RTNL lock.
*/
void netdev_upper_dev_unlink(struct net_device *dev,
static void __netdev_upper_dev_unlink(struct net_device *dev,
struct net_device *upper_dev)
{
struct netdev_notifier_changeupper_info changeupper_info = {
@ -7800,6 +7792,20 @@ void netdev_upper_dev_unlink(struct net_device *dev,
__netdev_walk_all_upper_dev(upper_dev, __netdev_update_lower_level,
NULL);
}
/**
* netdev_upper_dev_unlink - Removes a link to upper device
* @dev: device
* @upper_dev: new upper device
*
* Removes a link to device which is upper to this one. The caller must hold
* the RTNL lock.
*/
void netdev_upper_dev_unlink(struct net_device *dev,
struct net_device *upper_dev)
{
__netdev_upper_dev_unlink(dev, upper_dev);
}
EXPORT_SYMBOL(netdev_upper_dev_unlink);
static void __netdev_adjacent_dev_set(struct net_device *upper_dev,