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SubjectRe: [PATCH] media: rockchip: rkisp1: Constify static structs
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Am 19.11.20 um 23:18 schrieb Rikard Falkeborn:
> These 'ops' structs are never modified, so make them const to allow the
> compiler to put them in read-only memory.
>
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>

Thanks!

Reviewed-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>

> ---
> drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c | 6 +++---
> drivers/media/platform/rockchip/rkisp1/rkisp1-common.h | 2 +-
> drivers/media/platform/rockchip/rkisp1/rkisp1-params.c | 4 ++--
> 3 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> index b81235afd053..380582f68ace 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> @@ -565,7 +565,7 @@ static void rkisp1_sp_set_data_path(struct rkisp1_capture *cap)
> rkisp1_write(cap->rkisp1, dpcl, RKISP1_CIF_VI_DPCL);
> }
>
> -static struct rkisp1_capture_ops rkisp1_capture_ops_mp = {
> +static const struct rkisp1_capture_ops rkisp1_capture_ops_mp = {
> .config = rkisp1_mp_config,
> .enable = rkisp1_mp_enable,
> .disable = rkisp1_mp_disable,
> @@ -574,7 +574,7 @@ static struct rkisp1_capture_ops rkisp1_capture_ops_mp = {
> .is_stopped = rkisp1_mp_is_stopped,
> };
>
> -static struct rkisp1_capture_ops rkisp1_capture_ops_sp = {
> +static const struct rkisp1_capture_ops rkisp1_capture_ops_sp = {
> .config = rkisp1_sp_config,
> .enable = rkisp1_sp_enable,
> .disable = rkisp1_sp_disable,
> @@ -1038,7 +1038,7 @@ rkisp1_vb2_start_streaming(struct vb2_queue *queue, unsigned int count)
> return ret;
> }
>
> -static struct vb2_ops rkisp1_vb2_ops = {
> +static const struct vb2_ops rkisp1_vb2_ops = {
> .queue_setup = rkisp1_vb2_queue_setup,
> .buf_queue = rkisp1_vb2_buf_queue,
> .buf_prepare = rkisp1_vb2_buf_prepare,
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index 3a134e97161c..038c303a8aed 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -214,7 +214,7 @@ struct rkisp1_capture {
> struct rkisp1_vdev_node vnode;
> struct rkisp1_device *rkisp1;
> enum rkisp1_stream_id id;
> - struct rkisp1_capture_ops *ops;
> + const struct rkisp1_capture_ops *ops;
> const struct rkisp1_capture_config *config;
> bool is_streaming;
> bool is_stopping;
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> index 03f9a81df440..6af4d551ffb5 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> @@ -1469,7 +1469,7 @@ static void rkisp1_params_vb2_stop_streaming(struct vb2_queue *vq)
> vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
> }
>
> -static struct vb2_ops rkisp1_params_vb2_ops = {
> +static const struct vb2_ops rkisp1_params_vb2_ops = {
> .queue_setup = rkisp1_params_vb2_queue_setup,
> .wait_prepare = vb2_ops_wait_prepare,
> .wait_finish = vb2_ops_wait_finish,
> @@ -1479,7 +1479,7 @@ static struct vb2_ops rkisp1_params_vb2_ops = {
>
> };
>
> -static struct v4l2_file_operations rkisp1_params_fops = {
> +static const struct v4l2_file_operations rkisp1_params_fops = {
> .mmap = vb2_fop_mmap,
> .unlocked_ioctl = video_ioctl2,
> .poll = vb2_fop_poll,
>

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