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Date: Sun, 16 Mar 2025 12:15:47 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev,
	Ben Segall <bsegall@google.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Ingo Molnar <mingo@redhat.com>, Juri Lelli <juri.lelli@redhat.com>,
	Mel Gorman <mgorman@suse.de>, Peter Zijlstra <peterz@infradead.org>,
	Shrikanth Hegde <sshegde@linux.ibm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Valentin Schneider <vschneid@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Will Deacon <will@kernel.org>
Subject: Re: [PATCH v4 1/9] sched: Add a generic function to return the
 preemption string.
Message-ID: <Z9ay49NsoC73dKXe@gmail.com>
References: <20250314160810.2373416-1-bigeasy@linutronix.de>
 <20250314160810.2373416-2-bigeasy@linutronix.de>
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In-Reply-To: <20250314160810.2373416-2-bigeasy@linutronix.de>


* Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:

> +const char *preempt_modes[] = {
> +	"none", "voluntary", "full", "lazy", NULL,
> +};

> +	/* Count entries in NULL terminated preempt_modes */
> +	for (j = 0; preempt_modes[j]; j++)
> +		;

I'm pretty sure the build-time ARRAY_SIZE() primitive is superior here. ;-)

Thanks,

	Ingo