dev_pm_qos_c...ints_destroy(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dev_pm_qos_c...ints_destroy(9)

okay so this is a page from the Kernel API Manual — yes, the real one, section 9, kernel-space bestie territory 🫶 — and the name got a little truncated by the terminal, which honestly is so real of it. The function is dev_pm_qos_constraints_destroy, and it's giving very much "cleanup era" energy. Let's get into it ✨

🌸 NAME 🌸

dev_pm_qos_constraints_destroy — the little teardown icon that takes out a device's PM QoS constraints when the device leaves the chat 👋

🎀 SYNOPSIS 🎀

void dev_pm_qos_constraints_destroy (struct device *dev );

no return value, no drama, it just does the thing and leaves 💅

🦋 ARGUMENTS 🦋

  • dev — the target device 🎯 like, the one whose constraints are getting destroyed. the main character of this whole operation, lowkey.

⭐ DESCRIPTION ⭐

So here's the tea: this gets called from the device PM subsystem on device removal, and it's all happening under device_pm_lock. 🔒 That's the crucial detail — it's not out here freelancing, it's running inside that lock's protective embrace.

Think of it as the goodbye-hug function for a device that's being unplugged from the PM subsystem's life. Not me getting emotional over kernel teardown paths 😭💀

ngl, if you're poking at this, you're probably deep in drivers/base/power/qos.c already — stay safe in there, it's a whole vibe 🌈

👑 SEE ALSO 👑

Kernel file ./drivers/base/power/qos.c, plus the whole friend group:

okay that's literally the whole page, you ate that bestie 🍓✨

sign-off szn 🎀 this one comes from ./drivers/base/power, dated October 2026, and it lives at dev_pm_qos_c...ints_destroy(9) — yes the truncated name is canon, periodt. 💜
📦 where this page comes from