linux-kernel - Re: [PATCH 0/3] platform: add platform_devm_request_and

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Date:	Tue, 31 Jan 2012 20:57:11 +0800
From:	Barry Song <21cnbao@...il.com>
To:	dedekind1@...il.com
Cc:	Barry Song <Barry.Song@....com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	workgroup.linux@....com
Subject: Re: [PATCH 0/3] platform: add platform_devm_request_and_ioremap()
 common API

Hi Artem,

2012/1/31 Artem Bityutskiy <dedekind1@...il.com>:
> On Tue, 2012-01-31 at 17:59 +0800, Barry Song wrote:
>> these patches move the common pattern from
>>
>> "
>> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> if (!res) {
>>               ret = -ENODEV;
>>                       goto err;
>> }
>>
>> base = devm_request_and_ioremap(&dev->dev, mem_res);
>> if (!base) {
>>               ret = -ENODEV;
>>                       goto err;
>> }
>> "
>
> Am I right that these patches have been generated using the
> coccinelle/api/devm_request_and_ioremap.cocci script?
>
> If yes, I think it would be nice of you to give a credit to coccinelle
> and its authors for developing this awesome tool in every commit
> message.

devm_request_and_ioremap() is still something new by commit
72f8c0bfa0de64c68ee59f40eb9b2683bffffbb0:
author	Wolfram Sang <w.sang@...gutronix.de>	
	Tue, 25 Oct 2011 13:16:47 +0000 (15:16 +0200)

there are only a few users until now. but it is going to be used as a
common/suggested way to request and map resource. now we don't need a
script to find them, just cscope "cs f c devm_request_and_ioremap".

>
> --
> Best Regards,
> Artem Bityutskiy

-barry
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