linux-kernel - Re: Adding kmap_atomic_prot

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Date:	Fri, 24 Oct 2008 11:19:03 +0200
From:	Thomas Hellström <thomas@...gstengraphics.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Keith Packard <keithp@...thp.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	nickpiggin@...oo.com.au, airlied@...ux.ie, dri-devel@...ts.sf.net,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	jbarnes@...tuousgeek.org, Peter Anvin <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>, yinghai@...nel.org
Subject: Re: Adding kmap_atomic_prot_pfn

Ingo Molnar wrote:
> * Thomas Hellström <thomas@...gstengraphics.com> wrote:
>
>   
>> Keith,
>>
>> What you actually are doing here is claiming copyright on code that 
>> other people have written, and tighten the export restrictions.  
>> kmap_atomic_prot_pfn() appeared long ago in drm git with identical 
>> code and purpose, but with different authors, and iounmap_atomic is 
>> identical to kunmap_atomic.
>>     
>
>   
>>> +EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
>>>       
>
> you want to use this facility in a binary-only driver?
>
> 	Ingo
>   
At this point I have no such use for it, no.
The original user was a MIT style licenced driver.

/Thomas



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