Name
__dev_get_by_index -- find a device by its ifindex
Synopsis
struct net_device * __dev_get_by_index (int ifindex);
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 either the RTNL semaphore
or dev_base_lock.