linux-kernel - Re: [PATCH 04/10] omap_hwspinlock: Replace "hweight_long(i & 0xf) != 1" with "!is_power_of

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Message-ID: <CAK=WgbZGX5zCjDbesh2sNToH3zi10K=ggGKyLgDcXga-FZSLjw@mail.gmail.com>
Date:	Mon, 7 Dec 2015 13:08:24 +0200
From:	Ohad Ben-Cohen <ohad@...ery.com>
To:	Zhaoxiu Zeng <zhaoxiu.zeng@...il.com>
Cc:	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 04/10] omap_hwspinlock: Replace "hweight_long(i & 0xf) !=
 1" with "!is_power_of_2(i & 0xf)"

Hi,

On Sun, Dec 6, 2015 at 12:33 PM, Zhaoxiu Zeng <zhaoxiu.zeng@...il.com> wrote:
>
> From: Zeng Zhaoxiu <zhaoxiu.zeng@...il.com>
>
> Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@...il.com>

Please explain why do you think we should make this change.

Btw, the original code used is_power_of_2, but we thought hweight is
more explicit so it was adopted.

Thanks,
Ohad.
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