Re: [PATCH v3 7/7] drm/msm/dpu: Make _dpu_plane_get_aspace void

[Jeykumar Sankaran <jsanka-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>]

On 2018-09-24 10:45, Bruce Wang wrote:
> Remove unneeded checks from _dpu_plane_get_aspace. The function
> no longer needs to return anything so it is changed to void.
> 
Are the subject and text still appropriate for the patch? The function 
is returning
a ptr to msm_gem_address_space.

> v3: change _dpu_plane_get_aspace to return a struct
> *msm_gem_address_space instead passing in a pointer of the same
> type to edit.
> 
> Signed-off-by: Bruce Wang <bzwang@chromium.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 35 ++++-------------------
>  1 file changed, 6 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> index 924e321a5ac4..02c27240d38f 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> @@ -431,23 +431,12 @@ static void _dpu_plane_set_qos_remap(struct
> drm_plane *plane)
>  /**
>   * _dpu_plane_get_aspace: gets the address space
>   */
> -static int _dpu_plane_get_aspace(
> -		struct dpu_plane *pdpu,
> -		struct dpu_plane_state *pstate,
> -		struct msm_gem_address_space **aspace)
> +static inline struct msm_gem_address_space *_dpu_plane_get_aspace(
> +		struct dpu_plane *pdpu)
>  {
> -	struct dpu_kms *kms;
> -
> -	if (!pdpu || !pstate || !aspace) {
> -		DPU_ERROR("invalid parameters\n");
> -		return -EINVAL;
> -	}
> -
> -	kms = _dpu_plane_get_kms(&pdpu->base);
> +	struct dpu_kms *kms = _dpu_plane_get_kms(&pdpu->base);
> 
> -	*aspace = kms->base.aspace;
> -
> -	return 0;
> +	return kms->base.aspace;
>  }
> 
>  static inline void _dpu_plane_set_scanout(struct drm_plane *plane,
> @@ -456,15 +445,9 @@ static inline void _dpu_plane_set_scanout(struct
> drm_plane *plane,
>  		struct drm_framebuffer *fb)
>  {
>  	struct dpu_plane *pdpu = to_dpu_plane(plane);
> -	struct msm_gem_address_space *aspace = NULL;
> +	struct msm_gem_address_space *aspace =
> _dpu_plane_get_aspace(pdpu);
>  	int ret;
> 
> -	ret = _dpu_plane_get_aspace(pdpu, pstate, &aspace);
> -	if (ret) {
> -		DPU_ERROR_PLANE(pdpu, "Failed to get aspace %d\n", ret);
> -		return;
> -	}
> -
>  	ret = dpu_format_populate_layout(aspace, fb, &pipe_cfg->layout);
>  	if (ret == -EAGAIN)
>  		DPU_DEBUG_PLANE(pdpu, "not updating same src addrs\n");
> @@ -816,7 +799,7 @@ static int dpu_plane_prepare_fb(struct drm_plane
> *plane,
>  	struct drm_gem_object *obj;
>  	struct msm_gem_object *msm_obj;
>  	struct dma_fence *fence;
> -	struct msm_gem_address_space *aspace;
> +	struct msm_gem_address_space *aspace =
> _dpu_plane_get_aspace(pdpu);
>  	int ret;
> 
>  	if (!new_state->fb)
> @@ -824,12 +807,6 @@ static int dpu_plane_prepare_fb(struct drm_plane
> *plane,
> 
>  	DPU_DEBUG_PLANE(pdpu, "FB[%u]\n", fb->base.id);
> 
> -	ret = _dpu_plane_get_aspace(pdpu, pstate, &aspace);
> -	if (ret) {
> -		DPU_ERROR_PLANE(pdpu, "Failed to get aspace\n");
> -		return ret;
> -	}
> -
>  	/* cache aspace */
>  	pstate->aspace = aspace;

-- 
Jeykumar S
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