[PATCH] drm/msm/dpu: use DEFINE_SHOW_ATTRIBUTE to simplify dpu_regset32

[Abhinav Kumar]

On 9/22/2022 7:21 AM, Liu Shixin wrote:
> Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code.
> No functional change.
> 
> Signed-off-by: Liu Shixin <liushixin2 at huawei.com>

Looks reasonable to me

Reviewed-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 18 +++---------------
>   1 file changed, 3 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index 5e6e2626151e..f3660cd14f4f 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -194,7 +194,7 @@ struct dpu_debugfs_regset32 {
>   	struct dpu_kms *dpu_kms;
>   };
>   
> -static int _dpu_debugfs_show_regset32(struct seq_file *s, void *data)
> +static int dpu_regset32_show(struct seq_file *s, void *data)
>   {
>   	struct dpu_debugfs_regset32 *regset = s->private;
>   	struct dpu_kms *dpu_kms = regset->dpu_kms;
> @@ -227,19 +227,7 @@ static int _dpu_debugfs_show_regset32(struct seq_file *s, void *data)
>   
>   	return 0;
>   }
> -
> -static int dpu_debugfs_open_regset32(struct inode *inode,
> -		struct file *file)
> -{
> -	return single_open(file, _dpu_debugfs_show_regset32, inode->i_private);
> -}
> -
> -static const struct file_operations dpu_fops_regset32 = {
> -	.open =		dpu_debugfs_open_regset32,
> -	.read =		seq_read,
> -	.llseek =	seq_lseek,
> -	.release =	single_release,
> -};
> +DEFINE_SHOW_ATTRIBUTE(dpu_regset32);
>   
>   void dpu_debugfs_create_regset32(const char *name, umode_t mode,
>   		void *parent,
> @@ -259,7 +247,7 @@ void dpu_debugfs_create_regset32(const char *name, umode_t mode,
>   	regset->blk_len = length;
>   	regset->dpu_kms = dpu_kms;
>   
> -	debugfs_create_file(name, mode, parent, regset, &dpu_fops_regset32);
> +	debugfs_create_file(name, mode, parent, regset, &dpu_regset32_fops);
>   }
>   
>   static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)