linux-kernel - Re: [PATCH 1/2] irqchip/atmel-aic: remove #ifdef CONFIG

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Date:   Mon, 11 Jul 2022 09:49:31 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Claudiu Beznea <claudiu.beznea@...rochip.com>
Cc:     <tglx@...utronix.de>, <nicolas.ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] irqchip/atmel-aic: remove #ifdef CONFIG_PM

Claudiu,

If you send more than a single patch, please add a cover letter.

On Wed, 06 Jul 2022 08:46:29 +0100,
Claudiu Beznea <claudiu.beznea@...rochip.com> wrote:
> 
> Remove #ifdef CONFIG_PM around aic_suspend() function. Coding style
> recommends (at chapter Conditional Compilation) to avoid using
> preprocessor conditional in .c files.
> gc->chip_types->chip.irq_suspend()/gc->chip_types->chip.irq_resume() is
> called in irq_gc_suspend()/irq_gc_resume() which is NULL in case CONFIG_PM
> is not defined. With this gc->chip_types->chip.irq_pm_shutdown is
> populated all the time as it should be as irq_gc_shutdown() is not
> conditioned by CONFIG_PM.

By your very own investigations, aic_suspend() and co are utterly
useless when !PM. And yet you want to *preserve* them, despite being
dead code? What purpose does it serve (other than some blind
compliance to a rule)?

	M.

-- 
Without deviation from the norm, progress is not possible.