linux-kernel - Re: [PATCH 2/2] irqchip: add support for Sigma Designs SMP86xx interrupt controller

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Date:	Wed, 25 Nov 2015 12:12:42 +0000
From:	Måns Rullgård <mans@...sr.com>
To:	Mason <slash.tmp@...e.fr>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>
Subject: Re: [PATCH 2/2] irqchip: add support for Sigma Designs SMP86xx interrupt controller

Mason <slash.tmp@...e.fr> writes:

>> +	status_lo = intc_readl(chip, chip->ctl + IRQ_STATUS);
>> +	status_hi = intc_readl(chip, chip->ctl + IRQ_CTL_HI + IRQ_STATUS);
>
> In my local branch, I wrote:
>
> #define IRQ_CTL_LO	0
>
> 	status_lo = intc_readl(chip, chip->ctl + IRQ_CTL_LO + IRQ_STATUS);
> 	status_hi = intc_readl(chip, chip->ctl + IRQ_CTL_HI + IRQ_STATUS);
>
> (I'm a sucker for symmetry)

Nothing wrong with a little symmetry, though in this case I think the
extra macro only confuses matters.

-- 
Måns Rullgård
mans@...sr.com
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