linux-kernel - Re: linux-next: build failure after merge of the driver-core tree

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Message-ID: <20100518210607.GI8301@sequoia.sous-sol.org>
Date:	Tue, 18 May 2010 14:06:07 -0700
From:	Chris Wright <chrisw@...s-sol.org>
To:	Greg KH <greg@...ah.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Chris Wright <chrisw@...s-sol.org>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the driver-core tree

* Greg KH (greg@...ah.com) wrote:
> On Tue, May 18, 2010 at 04:44:09PM +1000, Stephen Rothwell wrote:
> > Hi Greg,
> > 
> > After merging the driver-core tree, today's linux-next build (powerpc
> > ppc64_defconfig) failed like this:
> > 
> > cc1: warnings being treated as errors
> > In file included from include/linux/kobject.h:21,
> >                  from include/linux/device.h:17,
> >                  from arch/powerpc/lib/devres.c:10:
> > include/linux/sysfs.h:97: error: 'struct file' declared inside parameter list
> > include/linux/sysfs.h:97: error: its scope is only this definition or declaration, which is probably not what you want
> > include/linux/sysfs.h:99: error: 'struct file' declared inside parameter list
> > include/linux/sysfs.h:101: error: 'struct file' declared inside parameter list
> > 
> > and many more (arch/powerpc is built with -Werror (as do some other
> > architectures)) and lots of similar warnings ...
> > 
> > Caused by commit f8e898186196a22756b50b908ecd92123265f8a2 ("sysfs: add
> > struct file* to bin_attr callbacks").   See Rule 1 in
> > Documentation/SubmitChecklist.  The header file probably just needs
> > "struct file;" added in the right place.
> > 
> > I have reverted that commit for today (and commit
> > 44e425ab9f887ec6d3a7a4481f3b0c99f120de19 ("pci: check caps from sysfs
> > file open to read device dependent config space") that depends on it).
> 
> Ick.
> 
> Chris, care to send a patch to resolve this?

Would you prefer incremental to fold in, or respin?  It's just this
one-liner fwd declaration as Stephen mentioned.

thanks,
-chris
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