---
name: "netdev_is_rx_handler_busy"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/netdev_is_rx_handler_busy"
---

# netdev\_is\_rx\_handler\_busy(9)

check if receive handler is registered

## NAME

netdev\_is\_rx\_handler\_busy - check if receive handler is registered

## SYNOPSIS

**bool netdev\_is\_rx\_handler\_busy(struct net\_device \*** *dev***);**

## ARGUMENTS

*dev*

device to check

## DESCRIPTION

Check if a receive handler is already registered for a given device. Return true if there one.

The caller must hold the rtnl\_mutex.

## COPYRIGHT