Reply: Question on S3 on evergreen

Ilija Hadzic ihadzic at
Thu Oct 13 07:29:20 PDT 2011


I have found this text particularly useful when it comes to using MIT (or 
BSD) code that resides in the GPL project (e.g. DRM in Linux)

I think that sections 2.2 and 2.3 are the things to be careful about 
because there is a non-trivial probabilty that at least some out of many 
patches that come in from many authors were created by copying and pasting 
lines of code that may have come from some other GPL'd code (e.g. other 
parts of Linux). Nobody can guarantee that this has not happened.

P.S. The above is my personal opinion, I speak for myself, not for my 
company, I am not a lawyer.

-- Ilija

On Thu, 13 Oct 2011, Huang, FrankR wrote:

> Xav, thanks for your reminder. Actually our law leam has already checked the license. As Dave said, the DRM kernel driver is all MIT-licensed and we will be free to use them. When the drm uses linux kernel function calls, we will use freebsd(none-GPL) equivalent to replace.
> Dave, by the way, I want to ask you about some exceptions in DRM. you know in some files(i.e. drm_fb_helper.c), it includes MODULE_LICENSE("GPL and additional rights"). Does it mean it is GPL licensed? Is it free to use this file?
> Thanks,
> Frank
> -----Original Message-----
> From: Xavier Bestel [mailto:xavier.bestel at]
> Sent: 2011-10-13 (ÐÇÆÚËÄ) 20:07
> To: Dave Airlie
> Cc: Huang, FrankR; dri-devel at
> Subject: Re: Question on S3 on evergreen
> On Thu, 2011-10-13 at 13:04 +0100, Dave Airlie wrote:
>> On Thu, Oct 13, 2011 at 12:56 PM, Xavier Bestel <xavier.bestel at> wrote:
>>> Hi,
>>> On Thu, 2011-10-13 at 17:54 +0800, Huang, FrankR wrote:
>>>> [...] I have ported radeon_suspend_kms() and radeon_resume_kms()
>>>> functions from linux to CE.
>>> I imagine you already have checked with your company's lawyers, but if I
>>> understand correctly that means your drivers will be distributed under
>>> the GPL ?
>> All the GPU driver code is licensed under MIT.
> Oh, I thought "linux" meant "kernel", not "X11".
> 	Xav

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