dev_get_by_index_rcu
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## Name

dev_get_by_index_rcu — find a device by its ifindex

## Synopsis

`struct net_device * dev_get_by_index_rcu (` | struct net * net,
| int ifindex`)`;

## Arguments

`net`

  the applicable net namespace

`ifindex`

  index of device

## Description

Search for an interface by index. Returns `NULL` if the device is not found or a pointer to the device. The device has not had its reference counter increased so the caller must be careful about locking. The caller must hold RCU lock.

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