Re: V4.1-RC build error after commit 77a3c6f

From	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Newsgroups	linux.kernel
Subject	Re: V4.1-RC build error after commit 77a3c6f
Date	2015-07-13 10:30 +0200
Message-ID	<pLHhD-2IV-1@gated-at.bofh.it> (permalink)
References	<pLavo-88t-5@gated-at.bofh.it> <pLyHn-5YP-11@gated-at.bofh.it> <pLASR-7cm-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi Larry,

On Sunday 12 July 2015 20:35:32 Larry Finger wrote:
> On 07/12/2015 06:10 PM, Laurent Pinchart wrote:
> > Hi Larry,
> > 
> > Thank you for the report.
> > 
> > On Saturday 11 July 2015 16:27:36 Larry Finger wrote:
> >> Beginning with the commit in the subject, I get the following build 
error:
> >>     CC [M]  drivers/media/v4l2-core/videobuf2-core.o
> >> 
> >> drivers/media/v4l2-core/videobuf2-core.c: In function
> >> ‘vb2_warn_zero_bytesused’:
> >> drivers/media/v4l2-core/videobuf2-core.c:1253:2:
> >> error: implicit declaration of function ‘__WARN’
> >> [-Werror=implicit-function-declaration]
> >> 
> >>     __WARN();
> >>     ^
> >> 
> >> cc1: some warnings being treated as errors
> >> 
> >> My .config is attached.
> > 
> > Indeed, __WARN isn't defined when CONFIG_BUG isn't set. My bad :-/
> > 
> > I've send a patch to fix this (you've been CC'ed), could you please review
> > it ?
> > 
> > And I've just noticed that I forgot to add your Reported-by: tag, please
> > feel free to add it to the review.
> 
> I added my "Acked-by:" for the __WARN to WARN_ON part. In addition, the rest
> looks good.

Thank you.

> I do not need a Reported-by to be added. I'm a volunteer, thus it does not
> matter how many times my name is mentioned. Another one will never increase
> my remuneration.

I'm afraid I wouldn't be in a position to increase your remuneration even if 
you were paid to report issues :-) Still, the point of the Reported-by: tag is 
recognition of contributors. This topic is currently being discussed as a 
canditate for the Linux kernel summit (see 
http://lists.linuxfoundation.org/pipermail/ksummit-discuss/2015-July/001318.html for instance). Feel free to chime in, we mostly have long 
time kernel maintainers in the e-mail thread, it would be nice to get the 
point of few of volunteers as well.

> I have also submitted a patch to make certain that __WARN is defined even
> when CONFIG_DEBUG is not defined. It may not be accepted, but if it does,
> no one else will be caught this way.

Thank you.

-- 
Regards,

Laurent Pinchart

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Re: V4.1-RC build error after commit 77a3c6f Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2015-07-13 01:20 +0200
  Re: V4.1-RC build error after commit 77a3c6f Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2015-07-13 10:30 +0200

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