Re: [Intel-gfx] [PATCH 08/20] drm/i915: Promote ptrdiff() to i915_utils.h

[Matthew Brost <matthew.brost@intel.com>]

On Thu, Jun 03, 2021 at 11:35:28PM +0200, Daniel Vetter wrote:
> On Wed, Jun 02, 2021 at 10:16:18PM -0700, Matthew Brost wrote:
> > From: Michal Wajdeczko <michal.wajdeczko@intel.com>
> > 
> > Generic helpers should be placed in i915_utils.h.
> 
> Random rant, but we're _way_ too happy to just stuff random things into
> i915_utils.h without trying to properly upstream it.
> 
> For thinks like this the general dumping ground would be kernel.h, there's
> a few pointer helpers there already. Follow up patch maybe nice.
> -Daniel
> 

Sure. I've added this to a list of follow ups so this comment doesn't
get lost.

Matt

> > 
> > Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
> > Signed-off-by: Matthew Brost <matthew.brost@intel.com>
> > Reviewed-by: Matthew Brost <matthew.brost@intel.com>
> > ---
> >  drivers/gpu/drm/i915/i915_utils.h | 5 +++++
> >  drivers/gpu/drm/i915/i915_vma.h   | 5 -----
> >  2 files changed, 5 insertions(+), 5 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h
> > index f02f52ab5070..5259edacde38 100644
> > --- a/drivers/gpu/drm/i915/i915_utils.h
> > +++ b/drivers/gpu/drm/i915/i915_utils.h
> > @@ -201,6 +201,11 @@ __check_struct_size(size_t base, size_t arr, size_t count, size_t *size)
> >  	__T;								\
> >  })
> >  
> > +static __always_inline ptrdiff_t ptrdiff(const void *a, const void *b)
> > +{
> > +	return a - b;
> > +}
> > +
> >  /*
> >   * container_of_user: Extract the superclass from a pointer to a member.
> >   *
> > diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
> > index dc6926d89626..eca452a9851f 100644
> > --- a/drivers/gpu/drm/i915/i915_vma.h
> > +++ b/drivers/gpu/drm/i915/i915_vma.h
> > @@ -151,11 +151,6 @@ static inline void i915_vma_put(struct i915_vma *vma)
> >  	i915_gem_object_put(vma->obj);
> >  }
> >  
> > -static __always_inline ptrdiff_t ptrdiff(const void *a, const void *b)
> > -{
> > -	return a - b;
> > -}
> > -
> >  static inline long
> >  i915_vma_compare(struct i915_vma *vma,
> >  		 struct i915_address_space *vm,
> > -- 
> > 2.28.0
> > 
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
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