linux-kernel - Re: [RFC PATCH 4/8] mtd: rawnand: ams-delta: Optimize pointer resolution on read/write

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Date:   Fri, 20 Jul 2018 21:29:41 +0200
From:   Boris Brezillon <boris.brezillon@...tlin.com>
To:     Janusz Krzysztofik <jmkrzyszt@...il.com>
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Tony Lindgren <tony@...mide.com>,
        Aaro Koskinen <aaro.koskinen@....fi>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Kevin Hilman <khilman@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Richard Weinberger <richard@....at>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        linux-mtd@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>
Subject: Re: [RFC PATCH 4/8] mtd: rawnand: ams-delta: Optimize pointer
 resolution on read/write

On Fri, 20 Jul 2018 20:14:55 +0200
Janusz Krzysztofik <jmkrzyszt@...il.com> wrote:

> On Thursday, July 19, 2018 8:25:38 AM CEST Boris Brezillon wrote:
> > On Thu, 19 Jul 2018 01:57:06 +0200
> > Janusz Krzysztofik <jmkrzyszt@...il.com> wrote:
> >   
> > > Further optimize processing speed of read/write callback functions by
> > > resolving private structure pointer only once per callback and passing
> > > it to all subfunctions instead of mtd_info.  
> 
> OK, I'll call it simplification (the code looks more simple after that, doesn't 
> it),

Yep.

> not optimization if you agree.
> 
> Thanks,
> Janusz
> 
> 
>