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

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* Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:

> Hi all,
> 
> After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
> 
> drivers/gpu/drm/i915/gt/intel_gt_pm.c: In function 'intel_gt_resume':
> drivers/gpu/drm/i915/gt/intel_gt_pm.c:183:54: error: macro "mutex_release" passed 3 arguments, but takes just 2
>   183 |    mutex_release(&ce->pin_mutex.dep_map, 0, _THIS_IP_);
>       |                                                      ^
> In file included from include/linux/spinlock_types.h:18,
>                  from include/linux/spinlock.h:83,
>                  from include/linux/mmzone.h:8,
>                  from include/linux/gfp.h:6,
>                  from include/linux/slab.h:15,
>                  from include/linux/io-mapping.h:10,
>                  from drivers/gpu/drm/i915/i915_drv.h:36,
>                  from drivers/gpu/drm/i915/gt/intel_gt_pm.c:7:
> include/linux/lockdep.h:605: note: macro "mutex_release" defined here
>   605 | #define mutex_release(l, i)   lock_release(l, i)
>       | 
> drivers/gpu/drm/i915/gt/intel_lrc.c: In function '__context_pin_release':
> drivers/gpu/drm/i915/gt/intel_lrc.c:245:51: error: macro "mutex_release" passed 3 arguments, but takes just 2
>   245 |  mutex_release(&ce->pin_mutex.dep_map, 0, _RET_IP_);
>       |                                                   ^
> In file included from include/linux/hardirq.h:6,
>                  from include/linux/interrupt.h:11,
>                  from drivers/gpu/drm/i915/gt/intel_lrc.c:134:
> include/linux/lockdep.h:605: note: macro "mutex_release" defined here
>   605 | #define mutex_release(l, i)   lock_release(l, i)
>       | 
> 
> Caused by commit
> 
>   5facae4f3549 ("locking/lockdep: Remove unused @nested argument from lock_release()")
> 
> interacting with commits
> 
>   dffa8feb3084 ("drm/i915/perf: Assert locking for i915_init_oa_perf_state()")
>   fcde8c7eea60 ("drm/i915/selftests: Exercise potential false lite-restore")
>   b1e3177bd1d8 ("drm/i915: Coordinate i915_active with its own mutex")
> 
> from the drm tree.
> 
> I added the following merge fix patch for today:
> 
> From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> Date: Thu, 10 Oct 2019 13:08:43 +1100
> Subject: [PATCH] drm/i915: update for mutex_release API change
> 
> Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/gt/intel_gt_pm.c | 2 +-
>  drivers/gpu/drm/i915/gt/intel_lrc.c   | 2 +-
>  drivers/gpu/drm/i915/i915_active.c    | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)

I suspect -next will have to carry this semantic merge conflict 
resolution until the DRM tree is merged upstream.

Thanks,

	Ingo
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