linux-kernel - Re: [PATCH V2 2/3] scsi: fix compiler warning for sg

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Message-ID: <5641783D.3030108@codeaurora.org>
Date:	Mon, 9 Nov 2015 22:53:17 -0600
From:	Timur Tabi <timur@...eaurora.org>
To:	Sinan Kaya <okaya@...eaurora.org>,
	Andy Shevchenko <andy.shevchenko@...il.com>
Cc:	linux-scsi <linux-scsi@...r.kernel.org>, cov@...eaurora.org,
	jcm@...hat.com, Andy Gross <agross@...eaurora.org>,
	linux-arm-msm@...r.kernel.org,
	linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
	Doug Gilbert <dgilbert@...erlog.com>,
	"James E.J. Bottomley" <JBottomley@...n.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2 2/3] scsi: fix compiler warning for sg

Sinan Kaya wrote:
>
> The code says it is using these macros for small integers only which
> can't overflow. I was trying to get rid of compiler warning and it seems
> to have disappeared.

I would double-check the assembly code, if I were you.  I don't like it 
when warnings just go away like that.

Besides, we *should* be using do_div() for 64-bit division.

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