linux-kernel - Re: [PATCH] x86/idle: Mark "idle=poll" as deprecated

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Message-ID: <20260119132525.GCaW4wxSTvuW1ttufF@fat_crate.local>
Date: Mon, 19 Jan 2026 14:25:25 +0100
From: Borislav Petkov <bp@...en8.de>
To: Aaron Tomlin <atomlin@...mlin.com>
Cc: corbet@....net, anna-maria@...utronix.de, frederic@...nel.org,
	tglx@...nel.org, mingo@...hat.com, dave.hansen@...ux.intel.com,
	x86@...nel.org, hpa@...or.com, akpm@...ux-foundation.org,
	pawan.kumar.gupta@...ux.intel.com, feng.tang@...ux.alibaba.com,
	kees@...nel.org, elver@...gle.com, arnd@...db.de, fvdl@...gle.com,
	lirongqing@...du.com, bhelgaas@...gle.com, peterz@...radead.org,
	brgerst@...il.com, kai.huang@...el.com, benjamin.berg@...el.com,
	andrew.cooper3@...rix.com, oleg@...hat.com, neelx@...e.com,
	sean@...e.io, mproche@...il.com, chjohnst@...il.com,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/idle: Mark "idle=poll" as deprecated

On Mon, Jan 19, 2026 at 07:41:20AM -0500, Aaron Tomlin wrote:
> I will investigate the possibility of implementing a boot-time parameter
> for the PM QoS subsystem to bridge this gap. This would provide the same
> immediate enforcement as "idle=poll" while retaining the runtime
> flexibility of the QoS framework.

No, if what you claim is a valid and actual use case, then all it needs is
documentation. Everything else is unnecessary.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette