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

[Daniel Vetter <daniel@ffwll.ch>]

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

> 
> 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