linux-kernel - Re: [PATCH v5 3/6] math64: New DIV64_U64_ROUND

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Message-ID: <0b9e3ba7-2b84-7621-78f9-9b22cb4f2bd6@cogentembedded.com>
Date:   Mon, 11 Feb 2019 18:22:31 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Simon Horman <horms+renesas@...ge.net.au>,
        Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     Magnus Damm <magnus.damm@...il.com>,
        linux-renesas-soc@...r.kernel.org, linux-clk@...r.kernel.org,
        Fabrizio Castro <fabrizio.castro@...renesas.com>,
        Biju Das <biju.das@...renesas.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 3/6] math64: New DIV64_U64_ROUND_CLOSEST helper

On 02/11/2019 04:58 PM, Simon Horman wrote:

> Provide DIV64_U64_ROUND_CLOSEST helper which performs division rounded to
> the closes integer using an unsigned 64bit dividend and divisor.

   Closest?

> This will be used in a follow-up patch to allow calculation of clock
> divisors with high frequency parents in the R-Car Gen3 CPG MSSR driver
> where ovefolow occurs if either the dividend or divisor is 32bit.
> 
> Signed-off-by: Simon Horman <horms+renesas@...ge.net.au>
[...]

MBR, Sergei