On Thu, Jun 17, 2021 at 10:09:26PM +0800, Baokun Li wrote:
>
> Using list_splice_init() instead of entire while-loops
> in atomisp_compat_css20.c.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
> ---
> V1->V2:
> CC mailist
> V2->V3:
> Using list_move_tail() -> Using list_splice_init()
> V3->V4:
> Remove redundant 'asd->'
> V4->V5:
> Add the version information for 'V3->V4:'
> V5->V6:
> Remove unused variable 'md_buf','dis_buf','s3a_buf'
>
> .../media/atomisp/pci/atomisp_compat_css20.c | 38 +++----------------
> 1 file changed, 5 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
> index f60198bb8a1a..99a632f33d2d 100644
> --- a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
> +++ b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
> @@ -2102,9 +2102,6 @@ void atomisp_css_stop(struct atomisp_sub_device *asd,
> enum ia_css_pipe_id pipe_id, bool in_reset)
> {
> struct atomisp_device *isp = asd->isp;
> - struct atomisp_s3a_buf *s3a_buf;
> - struct atomisp_dis_buf *dis_buf;
> - struct atomisp_metadata_buf *md_buf;
> unsigned long irqflags;
> unsigned int i;
>
> @@ -2144,42 +2141,17 @@ void atomisp_css_stop(struct atomisp_sub_device *asd,
> }
>
> /* move stats buffers to free queue list */
> - while (!list_empty(&asd->s3a_stats_in_css)) {
> - s3a_buf = list_entry(asd->s3a_stats_in_css.next,
> - struct atomisp_s3a_buf, list);
> - list_del(&s3a_buf->list);
> - list_add_tail(&s3a_buf->list, &asd->s3a_stats);
> - }
> - while (!list_empty(&asd->s3a_stats_ready)) {
> - s3a_buf = list_entry(asd->s3a_stats_ready.next,
> - struct atomisp_s3a_buf, list);
> - list_del(&s3a_buf->list);
> - list_add_tail(&s3a_buf->list, &asd->s3a_stats);
> - }
> + list_splice_init(&asd->s3a_stats_in_css, &asd->s3a_stats);
> + list_splice_init(&asd->s3a_stats_ready, &asd->s3a_stats);
>
> spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
> - while (!list_empty(&asd->dis_stats_in_css)) {
> - dis_buf = list_entry(asd->dis_stats_in_css.next,
> - struct atomisp_dis_buf, list);
> - list_del(&dis_buf->list);
> - list_add_tail(&dis_buf->list, &asd->dis_stats);
> - }
> + list_splice_init(&asd->dis_stats_in_css, &asd->dis_stats);
> asd->params.dis_proj_data_valid = false;
> spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
>
> for (i = 0; i < ATOMISP_METADATA_TYPE_NUM; i++) {
> - while (!list_empty(&asd->metadata_in_css[i])) {
> - md_buf = list_entry(asd->metadata_in_css[i].next,
> - struct atomisp_metadata_buf, list);
> - list_del(&md_buf->list);
> - list_add_tail(&md_buf->list, &asd->metadata[i]);
> - }
> - while (!list_empty(&asd->metadata_ready[i])) {
> - md_buf = list_entry(asd->metadata_ready[i].next,
> - struct atomisp_metadata_buf, list);
> - list_del(&md_buf->list);
> - list_add_tail(&md_buf->list, &asd->metadata[i]);
> - }
> + list_splice_init(&asd->metadata_in_css[i], &asd->metadata[i]);
> + list_splice_init(&asd->metadata_ready[i], &asd->metadata[i]);
> }
>
> atomisp_flush_params_queue(&asd->video_out_capture);
> --
> 2.31.1
>
--
With Best Regards,
Andy Shevchenko
