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

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Date:   Mon, 6 Sep 2021 09:34:21 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        intel-gfx <intel-gfx@...ts.freedesktop.org>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        "Nikula, Jani" <jani.nikula@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Dave Airlie <airlied@...ux.ie>,
        DRI <dri-devel@...ts.freedesktop.org>,
        John Harrison <John.C.Harrison@...el.com>,
        Matthew Brost <matthew.brost@...el.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the drm tree

On Mon, Sep 6, 2021 at 12:49 AM Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> Hi all,
>
> On Thu, 2 Sep 2021 07:50:38 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > On Fri, 20 Aug 2021 15:23:34 +0900 Masahiro Yamada <masahiroy@...nel.org> wrote:
> > >
> > > On Fri, Aug 20, 2021 at 11:33 AM Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> > > >
>  > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig)
> > > > failed like this:
> > > >
> > > > In file included from drivers/gpu/drm/i915/i915_debugfs.c:39:
> > > > drivers/gpu/drm/i915/gt/intel_gt_requests.h:9:10: fatal error: stddef.h: No such file or directory
> > > >     9 | #include <stddef.h>
> > > >       |          ^~~~~~~~~~
> > > >
> > > > Caused by commit
> > > >
> > > >   564f963eabd1 ("isystem: delete global -isystem compile option")
> > > >
> > > > from the kbuild tree interacting with commit
> > > >
> > > >   b97060a99b01 ("drm/i915/guc: Update intel_gt_wait_for_idle to work with GuC")
> > > >
> > > > I have applied the following patch for today.
> > >
> > >
> > > Thanks.
> > >
> > > This fix-up does not depend on my kbuild tree in any way.
> > >
> > > So, the drm maintainer can apply it to his tree.
> > >
> > > Perhaps with
> > >
> > > Fixes: b97060a99b01 ("drm/i915/guc: Update intel_gt_wait_for_idle to
> > > work with GuC")
> >
> > OK, so that didn't happen so I will now apply the merge fix up to the
> > merge of the kbuild tree.
> >
> > > > From: Stephen Rothwell <sfr@...b.auug.org.au>
> > > > Date: Fri, 20 Aug 2021 12:24:19 +1000
> > > > Subject: [PATCH] drm/i915: use linux/stddef.h due to "isystem: trim/fixup stdarg.h and other headers"
> > > >
> > > > Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> > > > ---
> > > >  drivers/gpu/drm/i915/gt/intel_gt_requests.h | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > >
> > > > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_requests.h b/drivers/gpu/drm/i915/gt/intel_gt_requests.h
> > > > index 51dbe0e3294e..d2969f68dd64 100644
> > > > --- a/drivers/gpu/drm/i915/gt/intel_gt_requests.h
> > > > +++ b/drivers/gpu/drm/i915/gt/intel_gt_requests.h
> > > > @@ -6,7 +6,7 @@
> > > >  #ifndef INTEL_GT_REQUESTS_H
> > > >  #define INTEL_GT_REQUESTS_H
> > > >
> > > > -#include <stddef.h>
> > > > +#include <linux/stddef.h>
> > > >
> > > >  struct intel_engine_cs;
> > > >  struct intel_gt;
> > > > --
> > > > 2.32.0
>
> Ping?  I am still applying this ...

Apologies, this fell through a lot of cracks. I applied this to drm-next now.

Matt/John, as author/committer it's your job to make sure issues and
fixes for the stuff you're pushing don't get lost. I'd have expected
John to apply this to at least drm-intel-gt-next (it's not even
there).

Joonas, I think this is the 2nd or 3rd or so issue this release cycle
where some compile fix got stuck a bit because drm-intel-gt-next isn't
in linux-next. Can we please fix that? It probably needs some changes
to the dim script.

Cheers, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch