linux-kernel - Re: [PATCH v2 19/25] pxa2xx-flash: switch from ioremap

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Message-ID: <CAPcyv4hVNykjWbmdpm4rN3Kf7GNPzNXxxH0jriMe2fpjNJYukg@mail.gmail.com>
Date:	Fri, 9 Oct 2015 14:33:22 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	Brian Norris <computersforpeace@...il.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>, linux-arch@...r.kernel.org,
	"Kani, Toshimitsu" <toshi.kani@...com>,
	"linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Russell King <rmk+kernel@....linux.org.uk>,
	David Woodhouse <dwmw2@...radead.org>,
	Christoph Hellwig <hch@....de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-mtd@...ts.infradead.org
Subject: Re: [PATCH v2 19/25] pxa2xx-flash: switch from ioremap_cache to memremap

On Fri, Oct 2, 2015 at 10:51 AM, Brian Norris
<computersforpeace@...il.com> wrote:
> + linux-mtd
>
> On Fri, Jul 24, 2015 at 10:39:45PM -0400, Dan Williams wrote:
>> In preparation for deprecating ioremap_cache() convert its usage in
>> pxa2xx-flash to memremap.
>>
>> Cc: David Woodhouse <dwmw2@...radead.org>
>> Cc: Brian Norris <computersforpeace@...il.com>
>> Signed-off-by: Dan Williams <dan.j.williams@...el.com>
>> ---
>>  drivers/mtd/maps/pxa2xx-flash.c |    4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
>> index 12fa75df5008..758a8a7f86d9 100644
>> --- a/drivers/mtd/maps/pxa2xx-flash.c
>> +++ b/drivers/mtd/maps/pxa2xx-flash.c
>> @@ -71,8 +71,8 @@ static int pxa2xx_flash_probe(struct platform_device *pdev)
>>                      info->map.name);
>>               return -ENOMEM;
>>       }
>> -     info->map.cached =
>> -             ioremap_cache(info->map.phys, info->map.size);
>> +     info->map.cached = memremap(info->map.phys, info->map.size,
>> +                     MEMREMAP_CACHE);
>
> Should the corresponding iounmap() be changed too? Looks like a pretty
> thin wrapper right now, but it seems like the API would suggest we do
> this anyway.
>

Yes, thanks for that catch, addressed in the next rev.
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