netdev_rx_handler_register(9)

📦 version 7.3.1, in nixpkgs unstable

💅 netdev_rx_handler_register 💅

okay so bestie, this is the netdev_rx_handler_register page from the Kernel API Manual — and yes, it's giving low-level networking main character energy. 🫶

💖 NAME 💖

netdev_rx_handler_register — register receive handler

✨ SYNOPSIS ✨

int netdev_rx_handler_register (struct net_device *dev ,
rx_handler_func_t *rx_handler , void *rx_handler_data );

🎀 ARGUMENTS 🎀

  • dev — device to register a handler for. Like, the actual device, bestie.
  • rx_handler — receive handler to register.
  • rx_handler_data — data pointer that is used by rx handler.

🦋 DESCRIPTION 🦋

Okay so you're registering a receive handler for a device. ✨ This handler will then be called from __netif_receive_skb — yes, that exact function. If something goes wrong, a negative errno code is returned on a failure. 💀

🚨 The caller must hold the rtnl_mutex. Not optional, no cap.

For a general description of rx_handler, see enum rx_handler_result.

💜 SEE ALSO 💜

Kernel file ./net/core/dev.c is in the mix too — and here's the whole (9) crew:

mwah 💋 — this page came from the Kernel API Manual, source ./net/core, date October 2026. Stay iconic, bestie 🫶

📦 where this page comes from