linux-kernel - Re: [PATCH v13 10/11] gpio: 74x164: Utilize the for_each_set

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Message-ID: <20190327123314.GJ9224@smile.fi.intel.com>
Date:   Wed, 27 Mar 2019 14:33:14 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     William Breathitt Gray <vilhelm.gray@...il.com>
Cc:     linus.walleij@...aro.org, bgolaszewski@...libre.com,
        akpm@...ux-foundation.org, linux-gpio@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux@...musvillemoes.dk, yamada.masahiro@...ionext.com,
        linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org,
        geert@...ux-m68k.org, preid@...ctromag.com.au,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: Re: [PATCH v13 10/11] gpio: 74x164: Utilize the for_each_set_clump8
 macro

On Wed, Mar 27, 2019 at 02:02:39PM +0900, William Breathitt Gray wrote:
> Replace verbose implementation in set_multiple callback with
> for_each_set_clump8 macro to simplify code and improve clarity.

> +	for_each_set_clump8(offset, bankmask, mask, chip->registers * 8) {

> +		bank = (chip->registers - 1) - (offset / 8);

Excessive parens, but it's minor.

> +		bitmask = bitmap_get_value8(bits, offset) & bankmask;
>  
>  		chip->buffer[bank] &= ~bankmask;
> +		chip->buffer[bank] |= bitmask;
>  	}

-- 
With Best Regards,
Andy Shevchenko