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Date:   Fri, 30 Aug 2019 17:59:49 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Geert Uytterhoeven <geert@linux-m68k.org>
Cc:     Bartosz Golaszewski <brgl@bgdev.pl>,
        Jonathan Corbet <corbet@lwn.net>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J . Wysocki" <rafael@kernel.org>,
        Alban Bedel <albeu@free.fr>,
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        Julia Lawall <Julia.Lawall@lip6.fr>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 0/9] drivers: add new variants of
 devm_platform_ioremap_resource()
Message-ID: <20190830155949.GA26757@lst.de>
References: <20190829143742.24726-1-brgl@bgdev.pl> <CAMuHMdW8d1h-81jy-dgDiLfGB3MGPx+f-Zqz+4D5S+gtmk3-BQ@mail.gmail.com>
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On Thu, Aug 29, 2019 at 04:48:36PM +0200, Geert Uytterhoeven wrote:
> Hi Bartosz,
> 
> On Thu, Aug 29, 2019 at 4:38 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> >
> > The new devm_platform_ioremap_resource() helper has now been widely
> > adopted and used in many drivers. Users of nocache and write-combined
> > ioremap() variants could profit from the same code shrinkage. This
> > series provides two new versions of devm_platform_ioremap_resource()
> > and uses it in a few example drivers with the assumption that - just
> > like was the case previously - a coccinelle script will be developed
> > to ease the transition for others.
> 
> Please be aware that the number of ioremap() variants is being
> reduced, as some of them are redundant (e.g. ioremap() already creates
> an uncached mapping, so ioremap_nocache() is not needed).
> So less is better than more ;-)

Yes.  If I can get the ia64 and openrisc patch in I plan to send Linus
a scripted removal of ioremap_nocache after -rc1.  I already have a
local patch for current mainline as of about two weeks ago.