Re: [PATCH v1 25/36] drm/i915/gem: drop nth_page() usage within SG entry

Lorenzo Stoakes <[email protected]> Thu, 28 Aug 2025 18:55:56 +0100
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Message-ID <[email protected]> 
On Thu, Aug 28, 2025 at 12:01:29AM +0200, David Hildenbrand wrote:
> It's no longer required to use nth_page() when iterating pages within a
> single SG entry, so let's drop the nth_page() usage.
>
> Cc: Jani Nikula <[email protected]>
> Cc: Joonas Lahtinen <[email protected]>
> Cc: Rodrigo Vivi <[email protected]>
> Cc: Tvrtko Ursulin <[email protected]>
> Cc: David Airlie <[email protected]>
> Cc: Simona Vetter <[email protected]>
> Signed-off-by: David Hildenbrand <[email protected]>

LGTM, so:

Reviewed-by: Lorenzo Stoakes <[email protected]>

> ---
>  drivers/gpu/drm/i915/gem/i915_gem_pages.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
> index c16a57160b262..031d7acc16142 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
> @@ -779,7 +779,7 @@ __i915_gem_object_get_page(struct drm_i915_gem_object *obj, pgoff_t n)
>  	GEM_BUG_ON(!i915_gem_object_has_struct_page(obj));
>
>  	sg = i915_gem_object_get_sg(obj, n, &offset);
> -	return nth_page(sg_page(sg), offset);
> +	return sg_page(sg) + offset;
>  }
>
>  /* Like i915_gem_object_get_page(), but mark the returned page dirty */
> --
> 2.50.1
>