[PATCH v2 2/3] drm/msm/dpu: drop (mostly) unused DPU_NAME_SIZE define

[Marijn Suijten]

On 2023-05-21 22:22:29, Dmitry Baryshkov wrote:
> This define is used only in one place, in dpu_encoder debugfs code.
> Inline the value and drop the define completely.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>

Even if this was a constant, always a fan of sizeof(name) versus
assuming that name has some length constant/define!

Reviewed-by: Marijn Suijten <marijn.suijten at somainline.org>

> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 4 ++--
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h     | 2 --
>  drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c   | 2 --
>  3 files changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index c771383446f2..af34932729db 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -2116,14 +2116,14 @@ static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
>  {
>  	struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(drm_enc);
>  
> -	char name[DPU_NAME_SIZE];
> +	char name[12];
>  
>  	if (!drm_enc->dev) {
>  		DPU_ERROR("invalid encoder or kms\n");
>  		return -EINVAL;
>  	}
>  
> -	snprintf(name, DPU_NAME_SIZE, "encoder%u", drm_enc->base.id);
> +	snprintf(name, sizeof(name), "encoder%u", drm_enc->base.id);
>  
>  	/* create overall sub-directory for the encoder */
>  	dpu_enc->debugfs_root = debugfs_create_dir(name,
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
> index 66209e2448d2..c4f82180ad10 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
> @@ -63,8 +63,6 @@
>  #define ktime_compare_safe(A, B) \
>  	ktime_compare(ktime_sub((A), (B)), ktime_set(0, 0))
>  
> -#define DPU_NAME_SIZE  12
> -
>  struct dpu_kms {
>  	struct msm_kms base;
>  	struct drm_device *dev;
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> index 14b5cfe30611..ac75ba13aa01 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> @@ -42,8 +42,6 @@
>  #define SHARP_SMOOTH_THR_DEFAULT	8
>  #define SHARP_NOISE_THR_DEFAULT	2
>  
> -#define DPU_NAME_SIZE  12
> -
>  #define DPU_PLANE_COLOR_FILL_FLAG	BIT(31)
>  #define DPU_ZPOS_MAX 255
>  
> -- 
> 2.39.2
>