On 02/08/2025 11:23, Jacopo Mondi wrote:
> From: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
>
> Now that all drivers access the v4l2_fh from the file structure, there
> is no need to pass it as an explicit argument to ioctl handlers. Set the
> argument to NULL in the w__video_do_ioctl(), and drop the name of the
> void *fh argument in the ioctl handler declarations to indicate it is
> not used.
>
> The argument could be removed altogether with a mechanical change
> (probably using coccinelle), but there are plans to pass a new argument
> to the ioctl handlers in the near future. The tree-wide change to remove
> the argument, only to add another one soon after, would be too much
> churn.
>
> Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
> Signed-off-by: Jacopo Mondi <jacopo.mo...@ideasonboard.com>
> ---
> drivers/media/v4l2-core/v4l2-ioctl.c | 5 +-
> include/media/v4l2-ioctl.h | 236
> +++++++++++++++++------------------
> 2 files changed, 120 insertions(+), 121 deletions(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c
> b/drivers/media/v4l2-core/v4l2-ioctl.c
> index
> 44c2f5ef3dae407d9786c5278d13efc982be2ff0..248a0b5b56ec7a09f2d4c61114f81aa5a9b8b041
> 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -3078,7 +3078,6 @@ static long __video_do_ioctl(struct file *file,
> bool write_only = false;
> struct v4l2_ioctl_info default_info;
> const struct v4l2_ioctl_info *info;
> - void *fh = file_to_v4l2_fh(file);
> struct v4l2_fh *vfh = NULL;
> int dev_debug = vfd->dev_debug;
> long ret = -ENOTTY;
> @@ -3140,11 +3139,11 @@ static long __video_do_ioctl(struct file *file,
>
> write_only = _IOC_DIR(cmd) == _IOC_WRITE;
> if (info != &default_info) {
> - ret = info->func(ops, file, fh, arg);
> + ret = info->func(ops, file, NULL, arg);
> } else if (!ops->vidioc_default) {
> ret = -ENOTTY;
> } else {
> - ret = ops->vidioc_default(file, fh,
> + ret = ops->vidioc_default(file, NULL,
> vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
> cmd, arg);
> }
drivers/media/v4l2-core/v4l2-compat-ioctl32.c also calls
ops->vidioc_query_ext_ctrl
directly, but still passes the fh as second argument: that needs to be replaced
by
a NULL pointer as well. That should be fixed in this patch as well.
Regarding v4l2-ioctl.c: I would like a follow-up patch that pushes the NULL
pointer
down into each ioctl helper function. I.e. drop the 'void *fh' argument in the
struct v4l2_ioctl_info 'func' callback, and all callbacks like v4l_g_fmt() just
replace 'fh' by 'NULL' when they call the vidioc op.
Part of it is that the core functions currently suggest that the second
argument is
a filehandle (since it's still named 'fh'), which is obviously wrong. And I
also think
that the core framework shouldn't use a dummy second argument at all. I admit
that
changing all vidioc callbacks in the whole subsystem to drop the second
argument is
too much churn, but for this core file I think it is something that should be
done.
Regards,
Hans
> diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
> index
> 82695c3a300a73219f262fb556ed61a8f09d273e..223e2c7a3516fc96fb486ab64226163e52f775a6
> 100644
> --- a/include/media/v4l2-ioctl.h
> +++ b/include/media/v4l2-ioctl.h
> @@ -293,144 +293,144 @@ struct v4l2_ioctl_ops {
> /* ioctl callbacks */
>
> /* VIDIOC_QUERYCAP handler */
> - int (*vidioc_querycap)(struct file *file, void *fh,
> + int (*vidioc_querycap)(struct file *file, void *,
> struct v4l2_capability *cap);
>
> /* VIDIOC_ENUM_FMT handlers */
> - int (*vidioc_enum_fmt_vid_cap)(struct file *file, void *fh,
> + int (*vidioc_enum_fmt_vid_cap)(struct file *file, void *,
> struct v4l2_fmtdesc *f);
> - int (*vidioc_enum_fmt_vid_overlay)(struct file *file, void *fh,
> + int (*vidioc_enum_fmt_vid_overlay)(struct file *file, void *,
> struct v4l2_fmtdesc *f);
> - int (*vidioc_enum_fmt_vid_out)(struct file *file, void *fh,
> + int (*vidioc_enum_fmt_vid_out)(struct file *file, void *,
> struct v4l2_fmtdesc *f);
> - int (*vidioc_enum_fmt_sdr_cap)(struct file *file, void *fh,
> + int (*vidioc_enum_fmt_sdr_cap)(struct file *file, void *,
> struct v4l2_fmtdesc *f);
> - int (*vidioc_enum_fmt_sdr_out)(struct file *file, void *fh,
> + int (*vidioc_enum_fmt_sdr_out)(struct file *file, void *,
> struct v4l2_fmtdesc *f);
> - int (*vidioc_enum_fmt_meta_cap)(struct file *file, void *fh,
> + int (*vidioc_enum_fmt_meta_cap)(struct file *file, void *,
> struct v4l2_fmtdesc *f);
> - int (*vidioc_enum_fmt_meta_out)(struct file *file, void *fh,
> + int (*vidioc_enum_fmt_meta_out)(struct file *file, void *,
> struct v4l2_fmtdesc *f);
>
> /* VIDIOC_G_FMT handlers */
> - int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_vid_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_vid_out)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_vid_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_vbi_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_vbi_out)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_vbi_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_sdr_cap)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_sdr_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_sdr_out)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_sdr_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_meta_cap)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_meta_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_g_fmt_meta_out)(struct file *file, void *fh,
> + int (*vidioc_g_fmt_meta_out)(struct file *file, void *,
> struct v4l2_format *f);
>
> /* VIDIOC_S_FMT handlers */
> - int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_vid_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_vid_out)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_vid_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_vbi_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_vbi_out)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_vbi_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_sdr_cap)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_sdr_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_sdr_out)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_sdr_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_meta_cap)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_meta_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_s_fmt_meta_out)(struct file *file, void *fh,
> + int (*vidioc_s_fmt_meta_out)(struct file *file, void *,
> struct v4l2_format *f);
>
> /* VIDIOC_TRY_FMT handlers */
> - int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_vid_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_vid_out)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_vid_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_vbi_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_vbi_out)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_vbi_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_sdr_cap)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_sdr_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_sdr_out)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_sdr_out)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_meta_cap)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_meta_cap)(struct file *file, void *,
> struct v4l2_format *f);
> - int (*vidioc_try_fmt_meta_out)(struct file *file, void *fh,
> + int (*vidioc_try_fmt_meta_out)(struct file *file, void *,
> struct v4l2_format *f);
>
> /* Buffer handlers */
> - int (*vidioc_reqbufs)(struct file *file, void *fh,
> + int (*vidioc_reqbufs)(struct file *file, void *,
> struct v4l2_requestbuffers *b);
> - int (*vidioc_querybuf)(struct file *file, void *fh,
> + int (*vidioc_querybuf)(struct file *file, void *,
> struct v4l2_buffer *b);
> - int (*vidioc_qbuf)(struct file *file, void *fh,
> + int (*vidioc_qbuf)(struct file *file, void *,
> struct v4l2_buffer *b);
> - int (*vidioc_expbuf)(struct file *file, void *fh,
> + int (*vidioc_expbuf)(struct file *file, void *,
> struct v4l2_exportbuffer *e);
> - int (*vidioc_dqbuf)(struct file *file, void *fh,
> + int (*vidioc_dqbuf)(struct file *file, void *,
> struct v4l2_buffer *b);
>
> - int (*vidioc_create_bufs)(struct file *file, void *fh,
> + int (*vidioc_create_bufs)(struct file *file, void *,
> struct v4l2_create_buffers *b);
> - int (*vidioc_prepare_buf)(struct file *file, void *fh,
> + int (*vidioc_prepare_buf)(struct file *file, void *,
> struct v4l2_buffer *b);
> - int (*vidioc_remove_bufs)(struct file *file, void *fh,
> + int (*vidioc_remove_bufs)(struct file *file, void *,
> struct v4l2_remove_buffers *d);
>
> - int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i);
> - int (*vidioc_g_fbuf)(struct file *file, void *fh,
> + int (*vidioc_overlay)(struct file *file, void *, unsigned int i);
> + int (*vidioc_g_fbuf)(struct file *file, void *,
> struct v4l2_framebuffer *a);
> - int (*vidioc_s_fbuf)(struct file *file, void *fh,
> + int (*vidioc_s_fbuf)(struct file *file, void *,
> const struct v4l2_framebuffer *a);
>
> /* Stream on/off */
> - int (*vidioc_streamon)(struct file *file, void *fh,
> + int (*vidioc_streamon)(struct file *file, void *,
> enum v4l2_buf_type i);
> - int (*vidioc_streamoff)(struct file *file, void *fh,
> + int (*vidioc_streamoff)(struct file *file, void *,
> enum v4l2_buf_type i);
>
> /*
> @@ -438,135 +438,135 @@ struct v4l2_ioctl_ops {
> *
> * Note: ENUMSTD is handled by videodev.c
> */
> - int (*vidioc_g_std)(struct file *file, void *fh, v4l2_std_id *norm);
> - int (*vidioc_s_std)(struct file *file, void *fh, v4l2_std_id norm);
> - int (*vidioc_querystd)(struct file *file, void *fh, v4l2_std_id *a);
> + int (*vidioc_g_std)(struct file *file, void *, v4l2_std_id *norm);
> + int (*vidioc_s_std)(struct file *file, void *, v4l2_std_id norm);
> + int (*vidioc_querystd)(struct file *file, void *, v4l2_std_id *a);
>
> /* Input handling */
> - int (*vidioc_enum_input)(struct file *file, void *fh,
> + int (*vidioc_enum_input)(struct file *file, void *,
> struct v4l2_input *inp);
> - int (*vidioc_g_input)(struct file *file, void *fh, unsigned int *i);
> - int (*vidioc_s_input)(struct file *file, void *fh, unsigned int i);
> + int (*vidioc_g_input)(struct file *file, void *, unsigned int *i);
> + int (*vidioc_s_input)(struct file *file, void *, unsigned int i);
>
> /* Output handling */
> - int (*vidioc_enum_output)(struct file *file, void *fh,
> + int (*vidioc_enum_output)(struct file *file, void *,
> struct v4l2_output *a);
> - int (*vidioc_g_output)(struct file *file, void *fh, unsigned int *i);
> - int (*vidioc_s_output)(struct file *file, void *fh, unsigned int i);
> + int (*vidioc_g_output)(struct file *file, void *, unsigned int *i);
> + int (*vidioc_s_output)(struct file *file, void *, unsigned int i);
>
> /* Control handling */
> - int (*vidioc_query_ext_ctrl)(struct file *file, void *fh,
> + int (*vidioc_query_ext_ctrl)(struct file *file, void *,
> struct v4l2_query_ext_ctrl *a);
> - int (*vidioc_g_ext_ctrls)(struct file *file, void *fh,
> + int (*vidioc_g_ext_ctrls)(struct file *file, void *,
> struct v4l2_ext_controls *a);
> - int (*vidioc_s_ext_ctrls)(struct file *file, void *fh,
> + int (*vidioc_s_ext_ctrls)(struct file *file, void *,
> struct v4l2_ext_controls *a);
> - int (*vidioc_try_ext_ctrls)(struct file *file, void *fh,
> + int (*vidioc_try_ext_ctrls)(struct file *file, void *,
> struct v4l2_ext_controls *a);
> - int (*vidioc_querymenu)(struct file *file, void *fh,
> + int (*vidioc_querymenu)(struct file *file, void *,
> struct v4l2_querymenu *a);
>
> /* Audio ioctls */
> - int (*vidioc_enumaudio)(struct file *file, void *fh,
> + int (*vidioc_enumaudio)(struct file *file, void *,
> struct v4l2_audio *a);
> - int (*vidioc_g_audio)(struct file *file, void *fh,
> + int (*vidioc_g_audio)(struct file *file, void *,
> struct v4l2_audio *a);
> - int (*vidioc_s_audio)(struct file *file, void *fh,
> + int (*vidioc_s_audio)(struct file *file, void *,
> const struct v4l2_audio *a);
>
> /* Audio out ioctls */
> - int (*vidioc_enumaudout)(struct file *file, void *fh,
> + int (*vidioc_enumaudout)(struct file *file, void *,
> struct v4l2_audioout *a);
> - int (*vidioc_g_audout)(struct file *file, void *fh,
> + int (*vidioc_g_audout)(struct file *file, void *,
> struct v4l2_audioout *a);
> - int (*vidioc_s_audout)(struct file *file, void *fh,
> + int (*vidioc_s_audout)(struct file *file, void *,
> const struct v4l2_audioout *a);
> - int (*vidioc_g_modulator)(struct file *file, void *fh,
> + int (*vidioc_g_modulator)(struct file *file, void *,
> struct v4l2_modulator *a);
> - int (*vidioc_s_modulator)(struct file *file, void *fh,
> + int (*vidioc_s_modulator)(struct file *file, void *,
> const struct v4l2_modulator *a);
> /* Crop ioctls */
> - int (*vidioc_g_pixelaspect)(struct file *file, void *fh,
> + int (*vidioc_g_pixelaspect)(struct file *file, void *,
> int buf_type, struct v4l2_fract *aspect);
> - int (*vidioc_g_selection)(struct file *file, void *fh,
> + int (*vidioc_g_selection)(struct file *file, void *,
> struct v4l2_selection *s);
> - int (*vidioc_s_selection)(struct file *file, void *fh,
> + int (*vidioc_s_selection)(struct file *file, void *,
> struct v4l2_selection *s);
> /* Compression ioctls */
> - int (*vidioc_g_jpegcomp)(struct file *file, void *fh,
> + int (*vidioc_g_jpegcomp)(struct file *file, void *,
> struct v4l2_jpegcompression *a);
> - int (*vidioc_s_jpegcomp)(struct file *file, void *fh,
> + int (*vidioc_s_jpegcomp)(struct file *file, void *,
> const struct v4l2_jpegcompression *a);
> - int (*vidioc_g_enc_index)(struct file *file, void *fh,
> + int (*vidioc_g_enc_index)(struct file *file, void *,
> struct v4l2_enc_idx *a);
> - int (*vidioc_encoder_cmd)(struct file *file, void *fh,
> + int (*vidioc_encoder_cmd)(struct file *file, void *,
> struct v4l2_encoder_cmd *a);
> - int (*vidioc_try_encoder_cmd)(struct file *file, void *fh,
> + int (*vidioc_try_encoder_cmd)(struct file *file, void *,
> struct v4l2_encoder_cmd *a);
> - int (*vidioc_decoder_cmd)(struct file *file, void *fh,
> + int (*vidioc_decoder_cmd)(struct file *file, void *,
> struct v4l2_decoder_cmd *a);
> - int (*vidioc_try_decoder_cmd)(struct file *file, void *fh,
> + int (*vidioc_try_decoder_cmd)(struct file *file, void *,
> struct v4l2_decoder_cmd *a);
>
> /* Stream type-dependent parameter ioctls */
> - int (*vidioc_g_parm)(struct file *file, void *fh,
> + int (*vidioc_g_parm)(struct file *file, void *,
> struct v4l2_streamparm *a);
> - int (*vidioc_s_parm)(struct file *file, void *fh,
> + int (*vidioc_s_parm)(struct file *file, void *,
> struct v4l2_streamparm *a);
>
> /* Tuner ioctls */
> - int (*vidioc_g_tuner)(struct file *file, void *fh,
> + int (*vidioc_g_tuner)(struct file *file, void *,
> struct v4l2_tuner *a);
> - int (*vidioc_s_tuner)(struct file *file, void *fh,
> + int (*vidioc_s_tuner)(struct file *file, void *,
> const struct v4l2_tuner *a);
> - int (*vidioc_g_frequency)(struct file *file, void *fh,
> + int (*vidioc_g_frequency)(struct file *file, void *,
> struct v4l2_frequency *a);
> - int (*vidioc_s_frequency)(struct file *file, void *fh,
> + int (*vidioc_s_frequency)(struct file *file, void *,
> const struct v4l2_frequency *a);
> - int (*vidioc_enum_freq_bands)(struct file *file, void *fh,
> + int (*vidioc_enum_freq_bands)(struct file *file, void *,
> struct v4l2_frequency_band *band);
>
> /* Sliced VBI cap */
> - int (*vidioc_g_sliced_vbi_cap)(struct file *file, void *fh,
> + int (*vidioc_g_sliced_vbi_cap)(struct file *file, void *,
> struct v4l2_sliced_vbi_cap *a);
>
> /* Log status ioctl */
> - int (*vidioc_log_status)(struct file *file, void *fh);
> + int (*vidioc_log_status)(struct file *file, void *);
>
> - int (*vidioc_s_hw_freq_seek)(struct file *file, void *fh,
> + int (*vidioc_s_hw_freq_seek)(struct file *file, void *,
> const struct v4l2_hw_freq_seek *a);
>
> /* Debugging ioctls */
> #ifdef CONFIG_VIDEO_ADV_DEBUG
> - int (*vidioc_g_register)(struct file *file, void *fh,
> + int (*vidioc_g_register)(struct file *file, void *,
> struct v4l2_dbg_register *reg);
> - int (*vidioc_s_register)(struct file *file, void *fh,
> + int (*vidioc_s_register)(struct file *file, void *,
> const struct v4l2_dbg_register *reg);
>
> - int (*vidioc_g_chip_info)(struct file *file, void *fh,
> + int (*vidioc_g_chip_info)(struct file *file, void *,
> struct v4l2_dbg_chip_info *chip);
> #endif
>
> - int (*vidioc_enum_framesizes)(struct file *file, void *fh,
> + int (*vidioc_enum_framesizes)(struct file *file, void *,
> struct v4l2_frmsizeenum *fsize);
>
> - int (*vidioc_enum_frameintervals)(struct file *file, void *fh,
> + int (*vidioc_enum_frameintervals)(struct file *file, void *,
> struct v4l2_frmivalenum *fival);
>
> /* DV Timings IOCTLs */
> - int (*vidioc_s_dv_timings)(struct file *file, void *fh,
> + int (*vidioc_s_dv_timings)(struct file *file, void *,
> struct v4l2_dv_timings *timings);
> - int (*vidioc_g_dv_timings)(struct file *file, void *fh,
> + int (*vidioc_g_dv_timings)(struct file *file, void *,
> struct v4l2_dv_timings *timings);
> - int (*vidioc_query_dv_timings)(struct file *file, void *fh,
> + int (*vidioc_query_dv_timings)(struct file *file, void *,
> struct v4l2_dv_timings *timings);
> - int (*vidioc_enum_dv_timings)(struct file *file, void *fh,
> + int (*vidioc_enum_dv_timings)(struct file *file, void *,
> struct v4l2_enum_dv_timings *timings);
> - int (*vidioc_dv_timings_cap)(struct file *file, void *fh,
> + int (*vidioc_dv_timings_cap)(struct file *file, void *,
> struct v4l2_dv_timings_cap *cap);
> - int (*vidioc_g_edid)(struct file *file, void *fh,
> + int (*vidioc_g_edid)(struct file *file, void *,
> struct v4l2_edid *edid);
> - int (*vidioc_s_edid)(struct file *file, void *fh,
> + int (*vidioc_s_edid)(struct file *file, void *,
> struct v4l2_edid *edid);
>
> int (*vidioc_subscribe_event)(struct v4l2_fh *fh,
> @@ -575,7 +575,7 @@ struct v4l2_ioctl_ops {
> const struct v4l2_event_subscription
> *sub);
>
> /* For other private ioctls */
> - long (*vidioc_default)(struct file *file, void *fh,
> + long (*vidioc_default)(struct file *file, void *,
> bool valid_prio, unsigned int cmd, void *arg);
> };
>
>
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