linux-kernel - Re: [PATCH] sched: Fix preemption string of preempt_dynamic

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Message-ID: <20250610140147.Pu9gdE9C@linutronix.de>
Date: Tue, 10 Jun 2025 16:01:47 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Shrikanth Hegde <sshegde@...ux.ibm.com>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] sched: Fix preemption string of preempt_dynamic_none

On 2025-06-03 11:52:13 [+0200], Thomas Weißschuh wrote:
> Zero is a valid value for "preempt_dynamic_mode", namely
> "preempt_dynamic_none".
> 
> Fix the off-by-one in preempt_model_str(), so that "preempty_dynamic_none"
> is correctly formatted as PREEMPT(none) instead of PREEMPT(undef).
> 
> Fixes: 8bdc5daaa01e ("sched: Add a generic function to return the preemption string")
> Cc: stable@...r.kernel.org
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>

A gentle ping.

Sebastian