Re: [PATCH 2/2] drm: unexport drm_ioctl_permit

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On Fri, Aug 13, 2021 at 04:54:50PM +0800, Desmond Cheong Zhi Xi wrote:
> Since the last user of drm_ioctl_permit was removed, and it's now only
> used in drm_ioctl.c, unexport the symbol.
> 
> Reported-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@xxxxxxxxx>

Applied to drm-misc-next for 5.16, thanks for your patch.
-Daniel

> ---
>  drivers/gpu/drm/drm_ioctl.c | 15 +--------------
>  include/drm/drm_ioctl.h     |  1 -
>  2 files changed, 1 insertion(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
> index eb4ec3fab7d1..fe271f6f96ab 100644
> --- a/drivers/gpu/drm/drm_ioctl.c
> +++ b/drivers/gpu/drm/drm_ioctl.c
> @@ -522,19 +522,7 @@ int drm_version(struct drm_device *dev, void *data,
>  	return err;
>  }
>  
> -/**
> - * drm_ioctl_permit - Check ioctl permissions against caller
> - *
> - * @flags: ioctl permission flags.
> - * @file_priv: Pointer to struct drm_file identifying the caller.
> - *
> - * Checks whether the caller is allowed to run an ioctl with the
> - * indicated permissions.
> - *
> - * Returns:
> - * Zero if allowed, -EACCES otherwise.
> - */
> -int drm_ioctl_permit(u32 flags, struct drm_file *file_priv)
> +static int drm_ioctl_permit(u32 flags, struct drm_file *file_priv)
>  {
>  	/* ROOT_ONLY is only for CAP_SYS_ADMIN */
>  	if (unlikely((flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)))
> @@ -557,7 +545,6 @@ int drm_ioctl_permit(u32 flags, struct drm_file *file_priv)
>  
>  	return 0;
>  }
> -EXPORT_SYMBOL(drm_ioctl_permit);
>  
>  #define DRM_IOCTL_DEF(ioctl, _func, _flags)	\
>  	[DRM_IOCTL_NR(ioctl)] = {		\
> diff --git a/include/drm/drm_ioctl.h b/include/drm/drm_ioctl.h
> index 13a68cdcea36..fd29842127e5 100644
> --- a/include/drm/drm_ioctl.h
> +++ b/include/drm/drm_ioctl.h
> @@ -174,7 +174,6 @@ struct drm_ioctl_desc {
>  		.name = #ioctl						\
>  	}
>  
> -int drm_ioctl_permit(u32 flags, struct drm_file *file_priv);
>  long drm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
>  long drm_ioctl_kernel(struct file *, drm_ioctl_t, void *, u32);
>  #ifdef CONFIG_COMPAT
> -- 
> 2.25.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch



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