On 09/27/17 23:46, Mauro Carvalho Chehab wrote:
> This struct is there just two store two arguments of
> v4l2_find_nearest_format(). The other two arguments are passed
> as parameter.
>
> IMHO, there isn't much sense on doing that, and that will just
> add one more struct to document ;)
>
> So, let's get rid of the struct, passing the parameters directly.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
> ---
> drivers/media/platform/vivid/vivid-vid-cap.c | 9 +++------
> drivers/media/v4l2-core/v4l2-common.c | 13 +++++++------
> include/media/v4l2-common.h | 12 ++++--------
> 3 files changed, 14 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c
> index 01419455e545..0fbbcde19f0d 100644
> --- a/drivers/media/platform/vivid/vivid-vid-cap.c
> +++ b/drivers/media/platform/vivid/vivid-vid-cap.c
> @@ -93,11 +93,6 @@ static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
> { 1, 60 },
> };
>
> -static const struct v4l2_discrete_probe webcam_probe = {
> - webcam_sizes,
> - VIVID_WEBCAM_SIZES
> -};
> -
> static int vid_cap_queue_setup(struct vb2_queue *vq,
> unsigned *nbuffers, unsigned *nplanes,
> unsigned sizes[], struct device *alloc_devs[])
> @@ -578,7 +573,9 @@ int vivid_try_fmt_vid_cap(struct file *file, void *priv,
> mp->field = vivid_field_cap(dev, mp->field);
> if (vivid_is_webcam(dev)) {
> const struct v4l2_frmsize_discrete *sz =
> - v4l2_find_nearest_format(&webcam_probe, mp->width, mp->height);
> + v4l2_find_nearest_format(webcam_sizes,
> + VIVID_WEBCAM_SIZES,
> + mp->width, mp->height);
>
> w = sz->width;
> h = sz->height;
> diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
> index a5ea1f517291..fb9a2a3c1072 100644
> --- a/drivers/media/v4l2-core/v4l2-common.c
> +++ b/drivers/media/v4l2-core/v4l2-common.c
> @@ -371,18 +371,19 @@ void v4l_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax,
> }
> EXPORT_SYMBOL_GPL(v4l_bound_align_image);
>
> -const struct v4l2_frmsize_discrete *v4l2_find_nearest_format(
> - const struct v4l2_discrete_probe *probe,
> - s32 width, s32 height)
> +const struct v4l2_frmsize_discrete
> +*v4l2_find_nearest_format(const struct v4l2_frmsize_discrete *sizes,
Please move the initial '*' to the end of the first line. Otherwise it is very
hard to see that this function returns a pointer.
> + const size_t num_sizes,
> + s32 width, s32 height)
> {
> int i;
> u32 error, min_error = UINT_MAX;
> const struct v4l2_frmsize_discrete *size, *best = NULL;
>
> - if (!probe)
> - return best;
> + if (!sizes)
> + return NULL;
>
> - for (i = 0, size = probe->sizes; i < probe->num_sizes; i++, size++) {
> + for (i = 0, size = sizes; i < num_sizes; i++, size++) {
> error = abs(size->width - width) + abs(size->height - height);
> if (error < min_error) {
> min_error = error;
> diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
> index 7dbecbe3009c..7ae7840df068 100644
> --- a/include/media/v4l2-common.h
> +++ b/include/media/v4l2-common.h
> @@ -249,14 +249,10 @@ void v4l_bound_align_image(unsigned int *w, unsigned int wmin,
> unsigned int hmax, unsigned int halign,
> unsigned int salign);
>
> -struct v4l2_discrete_probe {
> - const struct v4l2_frmsize_discrete *sizes;
> - int num_sizes;
> -};
> -
> -const struct v4l2_frmsize_discrete *v4l2_find_nearest_format(
> - const struct v4l2_discrete_probe *probe,
> - s32 width, s32 height);
> +const struct v4l2_frmsize_discrete
> +*v4l2_find_nearest_format(const struct v4l2_frmsize_discrete *sizes,
Same here.
> + const size_t num_sizes,
> + s32 width, s32 height);
>
> void v4l2_get_timestamp(struct timeval *tv);
>
>
After changing that you can add my:
Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Regards,
Hans
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