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Message-ID: <1f8c50f2-6530-49bd-9b41-744437078100@arm.com>
Date: Mon, 27 May 2024 00:52:54 +0200
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Subject: Re: [RFC PATCH v3 5/6] sched/uclamp: Simplify uclamp_eff_value()
To: Hongyan Xia <hongyan.xia2@arm.com>, Ingo Molnar <mingo@redhat.com>,
 Peter Zijlstra <peterz@infradead.org>,
 Vincent Guittot <vincent.guittot@linaro.org>,
 Juri Lelli <juri.lelli@redhat.com>, Steven Rostedt <rostedt@goodmis.org>,
 Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
 Daniel Bristot de Oliveira <bristot@redhat.com>,
 Valentin Schneider <vschneid@redhat.com>
Cc: Qais Yousef <qyousef@layalina.io>,
 Morten Rasmussen <morten.rasmussen@arm.com>,
 Lukasz Luba <lukasz.luba@arm.com>,
 Christian Loehle <christian.loehle@arm.com>, pierre.gondois@arm.com,
 linux-kernel@vger.kernel.org
References: <cover.1715082714.git.hongyan.xia2@arm.com>
 <6209eda0b134ad7a0be8855ffdd7b4c747fb8048.1715082714.git.hongyan.xia2@arm.com>
From: Dietmar Eggemann <dietmar.eggemann@arm.com>
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In-Reply-To: <6209eda0b134ad7a0be8855ffdd7b4c747fb8048.1715082714.git.hongyan.xia2@arm.com>
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On 07/05/2024 14:50, Hongyan Xia wrote:

[...]

> +static inline unsigned long uclamp_eff_value(struct task_struct *p,
> +					     enum uclamp_id clamp_id)
> +{
> +	if (uclamp_is_used() && p->uclamp[clamp_id].active)
> +		return p->uclamp[clamp_id].value;
> +
> +	if (clamp_id == UCLAMP_MIN)
> +		return 0;
> +
> +	return SCHED_CAPACITY_SCALE;

Why not keep using 'return uclamp_none(clamp_id)'  here?

[...]