linux-kernel - Re: linux-next: build failure after merge of the char-misc tree

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Message-ID: <20200728182359.2b9b31bf@canb.auug.org.au>
Date:   Tue, 28 Jul 2020 18:23:59 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Greg KH <greg@...ah.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Oded Gabbay <oded.gabbay@...il.com>,
        Omer Shpigelman <oshpigelman@...ana.ai>
Subject: Re: linux-next: build failure after merge of the char-misc tree

Hi Greg,

On Tue, 28 Jul 2020 09:53:36 +0200 Greg KH <greg@...ah.com> wrote:
>
> On Tue, Jul 28, 2020 at 05:33:31PM +1000, Stephen Rothwell wrote:
> > Hi Greg,
> > 
> > On Mon, 27 Jul 2020 11:24:48 +0200 Greg KH <greg@...ah.com> wrote:  
> > >
> > > On Mon, Jul 27, 2020 at 06:08:31PM +1000, Stephen Rothwell wrote:  
> > > > Hi all,
> > > > 
> > > > After merging the char-misc tree, today's linux-next build (x86_64
> > > > allmodconfig) failed like this:
> > > > 
> > > > In file included from drivers/misc/habanalabs/goya/goya.c:8:
> > > > drivers/misc/habanalabs/goya/goyaP.h:12:10: fatal error: habanalabs.h: No such file or directory
> > > >    12 | #include "habanalabs.h"
> > > >       |          ^~~~~~~~~~~~~~
> > > > In file included from drivers/misc/habanalabs/goya/goya_security.c:8:
> > > > drivers/misc/habanalabs/goya/goyaP.h:12:10: fatal error: habanalabs.h: No such file or directory
> > > >    12 | #include "habanalabs.h"
> > > >       |          ^~~~~~~~~~~~~~
> > > > 
> > > > Presumably caused by commit
> > > > 
> > > >   70b2f993ea4a ("habanalabs: create common folder")
> > > > 
> > > > I have used the char-misc tree from next-20200724 for today.    
> > > 
> > > Ugh, this is a mess of a merge with this driver.
> > > 
> > > Oded, I'll take Stephen's merge resolutions here and push out a new
> > > version, and try to resolve this error, but if you could verify I got it
> > > correct, that would be great.  
> > 
> > The conflicts are gone, but I still get these errors.  
> 
> Very odd, I can not duplicate this at all here.  I just did a clean
> checkout of the char-misc-next branch and a full 'make allmodconfig' for
> x86_64, and it worked just fine.
> 
> Are you sure it's not coming from some other tree?

Do you build with a separate object tree?  I always use make O=...
which makes the difference.  I tested with just your tree.

-- 
Cheers,
Stephen Rothwell

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