netlbl_unlhs...tdev_handler(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

netlbl_unlhsh_netdev_handler — okay so this is the network device notification handler, and yes bestie it's a kernel API manual page, we're doing big-brain hours 🧠✨

✨ SYNOPSIS ✨

int netlbl_unlhsh_netdev_handler (struct notifier_block *this , unsigned
long event , void *ptr );

That's the whole vibe check right there: it gives you back an int, and it takes three friends along for the ride 💅

🎀 ARGUMENTS 🎀

  • this — the notifier block, aka the little card that says "hey I'm the one being notified" 🫶
  • event — the event. Just… the event. It is what it says on the tin, no cap 🌸
  • ptr — the netdevice notifier info, and it's cast to void (iconic void *ptr behaviour, we love a mystery box 🙈)

🦋 DESCRIPTION 🦋

So the whole job here is handling network device events 🎧 — but at present all we actually care about is a network device going away. Like, the one thing that makes this function sit up in its chair is a device dipping out 👋💀

And when a device goes away? We clear any related entries from the unlabeled connection hash table. That's it, that's the whole service. Cleanup crew main character energy 🧹✨

Lowkey the key phrase here is "at present" — meaning right now it's just the device-going-away case, fr fr. Don't go reading more into it 🫶

🌈 SEE ALSO 🌈

Kernel file ./net/netlabel/netlabel_unlabeled.c — that's the mothership, go look 💜

And here's the whole extended friend group, all in (9) section, all listed exactly as they live 👑:

⭐ and that's the whole page, bestie ⭐

This lil' beauty comes from ./net/netlabel, dated October 2026, and it's the netlbl_unlhsh_netdev_handler(9) page from the Kernel API Manual 🫶💖 Go forth and handle those notifications, you absolute icon 👑🎀

📦 where this page comes from