register_netevent_notifier(9)

💖 register_netevent_notifier(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes we're literally in kernel land today and it's giving main character energy ✨

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🌸 NAME 🌸

register_netevent_notifier — the function that registers a netevent notifier block, no cap 🫶

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🦋 SYNOPSIS 🦋

int register_netevent_notifier (struct notifier_block *nb );

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🎀 ARGUMENTS 🎀

• nb — notifier 💅 (that's it, that's the whole argument, she's simple and iconic)

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⭐ DESCRIPTION ⭐

okay so here's the vibe: you call this and it registers a notifier that's gonna get called whenever a netevent occurs. literally every time. that's the whole job 🔥

the notifier you pass in gets linked into the kernel structures, and bestie listen to me — it must not be reused until it has been unregistered. like, do not touch it, do not pass it around, do not recycle it. that's a whole mess waiting to happen 😭

and if something goes wrong? a negative errno code comes back on a failure. so check your return value, queen 👑

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🌈 SEE ALSO 🌈

• Kernel file ./net/core/netevent.c — go read the source, it's right there 🧚
• unregister_netevent_notifier(9) — the one you literally need to call before reusing your notifier, remember? 🙈
• call_netevent_notifiers(9) — the one that does the calling ✨

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and that's the whole page, bestie! 🍓 this little gem lives in ./net/core and was dated October 2026 — stream it, bookmark it, and go unregister your notifiers responsibly 💜🎀💅