linux-kernel - Re: [PATCH 03/98] drm.h: use __kernel_size_t instead of size

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Date:	Wed, 3 Jun 2015 18:19:48 +0100
From:	Emil Velikov <emil.l.velikov@...il.com>
To:	Mikko Rapeli <mikko.rapeli@....fi>
Cc:	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	ML dri-devel <dri-devel@...ts.freedesktop.org>,
	linux-api@...r.kernel.org
Subject: Re: [PATCH 03/98] drm.h: use __kernel_size_t instead of size_t

On 30 May 2015 at 16:37, Mikko Rapeli <mikko.rapeli@....fi> wrote:
> Fixes userspace compilation error:
>
> drm/drm.h:132:2: error: unknown type name ‘size_t’
>
> Signed-off-by: Mikko Rapeli <mikko.rapeli@....fi>
> ---
>  include/uapi/drm/drm.h | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
> index ff6ef62..b197650 100644
> --- a/include/uapi/drm/drm.h
> +++ b/include/uapi/drm/drm.h
> @@ -129,11 +129,11 @@ struct drm_version {
>         int version_major;        /**< Major version */
>         int version_minor;        /**< Minor version */
>         int version_patchlevel;   /**< Patch level */
> -       size_t name_len;          /**< Length of name buffer */
> +       __kernel_size_t name_len;         /**< Length of name buffer */
>         char __user *name;        /**< Name of driver */
> -       size_t date_len;          /**< Length of date buffer */
> +       __kernel_size_t date_len;         /**< Length of date buffer */
>         char __user *date;        /**< User-space buffer to hold date */
> -       size_t desc_len;          /**< Length of desc buffer */
> +       __kernel_size_t desc_len;         /**< Length of desc buffer */
>         char __user *desc;        /**< User-space buffer to hold desc */
>  };
>
> @@ -143,7 +143,7 @@ struct drm_version {
>   * \sa drmGetBusid() and drmSetBusId().
>   */
>  struct drm_unique {
> -       size_t unique_len;        /**< Length of unique */
> +       __kernel_size_t unique_len;       /**< Length of unique */
As the file is used by other platforms than Linux this change will
break them. Can you add a typedef similar to how __u8 and friends are
handled at the top of the file.

Thanks
Emil
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