Hi Hans,

Thanks for the patch.

On Sunday 10 June 2012 12:25:40 Hans Verkuil wrote:
> From: Hans Verkuil <hans.verk...@cisco.com>
> 
> Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
> ---
>  drivers/media/video/v4l2-ioctl.c |   35 +++++++++++++----------------------
> 1 file changed, 13 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/media/video/v4l2-ioctl.c
> b/drivers/media/video/v4l2-ioctl.c index 0de31c4..6c91674 100644
> --- a/drivers/media/video/v4l2-ioctl.c
> +++ b/drivers/media/video/v4l2-ioctl.c
> @@ -870,6 +870,11 @@ static void v4l_print_newline(const void *arg)
>       pr_cont("\n");
>  }
> 
> +static void v4l_print_default(const void *arg)
> +{
> +     pr_cont("non-standard ioctl\n");

I'd say "driver-specific ioctl" instead. "non-standard" may sound like an 
error to users.

> +}
> +
>  static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
>  {
>       __u32 i;
> @@ -1853,12 +1858,6 @@ struct v4l2_ioctl_info {
>         sizeof(((struct v4l2_struct *)0)->field)) << 16)
>  #define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
> 
> -#define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = {     \
> -     .ioctl = _ioctl,                                        \
> -     .flags = _flags,                                        \
> -     .name = #_ioctl,                                        \
> -}
> -
>  #define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags)                      
> \
>       [_IOC_NR(_ioctl)] = {                                           \
>               .ioctl = _ioctl,                                        \
> @@ -2042,12 +2041,12 @@ static long __video_do_ioctl(struct file *file,
>       } else {
>               default_info.ioctl = cmd;
>               default_info.flags = 0;
> -             default_info.debug = NULL;
> +             default_info.debug = v4l_print_default;
>               info = &default_info;
>       }
> 
>       write_only = _IOC_DIR(cmd) == _IOC_WRITE;
> -     if (info->debug && write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
> +     if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
>               v4l_print_ioctl(vfd->name, cmd);
>               pr_cont(": ");
>               info->debug(arg);
> @@ -2058,22 +2057,16 @@ static long __video_do_ioctl(struct file *file,
>               const vidioc_op *vidioc = p + info->offset;
> 
>               ret = (*vidioc)(file, fh, arg);
> -             goto error;
>       } else if (info->flags & INFO_FL_FUNC) {
>               ret = info->func(ops, file, fh, arg);
> -             goto error;
> +     } else if (!ops->vidioc_default) {
> +             ret = -ENOTTY;
> +     } else {
> +             ret = ops->vidioc_default(file, fh,
> +                     use_fh_prio ? v4l2_prio_check(vfd->prio, vfh->prio) >= 
> 0 : 0,
> +                     cmd, arg);
>       }
> 
> -     switch (cmd) {
> -     default:
> -             if (!ops->vidioc_default)
> -                     break;
> -             ret = ops->vidioc_default(file, fh, use_fh_prio ?
> -                             v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
> -                             cmd, arg);
> -             break;
> -     } /* switch */
> -
>  error:
>       if (vfd->debug) {
>               if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) {
> @@ -2087,8 +2080,6 @@ error:
>                       pr_cont(": error %ld\n", ret);
>               else if (vfd->debug == V4L2_DEBUG_IOCTL)
>                       pr_cont("\n");
> -             else if (!info->debug)
> -                     return ret;
>               else if (_IOC_DIR(cmd) == _IOC_NONE)
>                       info->debug(arg);
>               else {
-- 
Regards,

Laurent Pinchart

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