cpu_pm_unregister_notifier(9)

💅 cpu_pm_unregister_notifier — the Kernel API Manual page you actually wanna read 🎀

okay so bestie, we're in the Kernel API Manual today and the star of the show is cpu_pm_unregister_notifier(9) — yes the whole entire name, she's long, she's iconic, deal with it ✨

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🌸 NAME 🌸

cpu_pm_unregister_notifier — unregister a driver with cpu_pm 🫶

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⭐ SYNOPSIS ⭐

int cpu_pm_unregister_notifier (struct notifier_block *nb );

that's it. that's the whole vibe check. one function, one argument, she ate 💅

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🦋 ARGUMENTS 🦋

• nb — the notifier block to be unregistered, literally just hand her the block and she'll take it from there 🎀

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✨ DESCRIPTION ✨

okay so here's the tea ☕ — this function removes a driver from the CPU PM notifier list. like, she's the one who hits "leave group" on the notifier chain for you, no drama, no cap 💀

and the returns?? highkey important — this function has the same return conditions as raw_notifier_chain_unregister. so like, don't go inventing your own expectations, check that one for the full story, iykyk 👑

ngl bestie, "same return conditions as raw_notifier_chain_unregister" is doing a lot of heavy lifting here — that's the actual contract, so go look it up before you assume anything 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./kernel/cpu_pm.c
• cpu_pm_register_notifier(9) — her counterpart, the "join group" one 🫶
• cpu_pm_enter(9)
• cpu_pm_exit(9)
• cpu_cluster_pm_enter(9)
• cpu_cluster_pm_exit(9)

like the whole cpu_pm friend group, fr fr 💖

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and that's the page!! mwah 😘 this one came to you from ./kernel, dated October 2026, and yes the header/footer both said cpu_pm_unregister_notifier(9) again because the manpage said it thrice and we respect the repetition 💜 stay slaying, go unregister responsibly 🧚‍♀️🌸