linux-kernel - Re: [PATCH 3/3] ata: sata_dwc_460ex: get rid of global data

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Date:	Thu, 17 Dec 2015 15:57:57 +0000
From:	Måns Rullgård <mans@...sr.com>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	Tejun Heo <tj@...nel.org>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] ata: sata_dwc_460ex: get rid of global data

Andy Shevchenko <andriy.shevchenko@...ux.intel.com> writes:

> On Thu, 2015-12-17 at 15:19 +0000, Måns Rullgård wrote:
>> Andy Shevchenko <andriy.shevchenko@...ux.intel.com> writes:
>> 
>> > On Tue, 2015-12-15 at 23:25 +0000, Mans Rullgard wrote:
>> > > This moves all global data into the driver private struct, thus
>> > > permitting multiple devices of this type to be used.
>> > > 
>> > 
>> > Nice!
>> > 
>> > Btw, last time Linus complained about new warnings. Most of them I
>> > have
>> > fixed when moved to external DMA driver. Leftovers IIRC are related
>> > to
>> > address space. Are you going to fix them? Otherwise it might be a
>> > headache for him again with strong wording to our address I
>> > suppose.
>> 
>> There are some issues with __iomem annotations.  Is that the warnings
>> you refer to?  I'm not getting any regular compiler warnings.
>> 
>
> I guess I got them because I'am checking sparse warnings as well.
>
> There is the original Linus' complain.
> http://permalink.gmane.org/gmane.linux.ide/59391

He's right, those casts are ugly and possibly wrong.  I was thinking of
cleaning it up, but first I wanted to get it working at all with my
hardware.

-- 
Måns Rullgård
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