netdev_upper_dev_unlink
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## Name

netdev_upper_dev_unlink — Removes a link to upper device

## Synopsis

`void netdev_upper_dev_unlink (` | struct net_device * dev,
| struct net_device * upper_dev`)`;

## Arguments

`dev`

  device

`upper_dev`

  new upper device

## Description

Removes a link to device which is upper to this one. The caller must hold the RTNL lock.

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