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* [PATCH -next v3] media: staging: atomisp: use list_splice_init in atomisp_compat_css20.c
@ 2021-06-11  8:10 Baokun Li
  2021-06-11  9:59 ` Andy Shevchenko
  2021-06-17  8:52 ` kernel test robot
  0 siblings, 2 replies; 6+ messages in thread
From: Baokun Li @ 2021-06-11  8:10 UTC (permalink / raw)
  To: mchehab, sakari.ailus, gregkh, andriy.shevchenko, kaixuxia,
	gustavoars, linux-media, linux-staging, linux-kernel
  Cc: weiyongjun1, yuehaibing, yangjihong1, yukuai3, libaokun1, Hulk Robot

Using list_splice_init() instead of entire while-loops
in atomisp_compat_css20.c.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
---
V1->V2:
	CC mailist
V2->V3:
        Using list_move_tail() -> Using list_splice_init()

 .../media/atomisp/pci/atomisp_compat_css20.c  | 35 +++----------------
 1 file changed, 5 insertions(+), 30 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..3844180d32b5 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
@@ -2144,42 +2144,17 @@ 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->asd->metadata[i]);
+		list_splice_init(&asd->metadata_ready[i], &asd->asd->metadata[i]);
 	}
 
 	atomisp_flush_params_queue(&asd->video_out_capture);
-- 
2.31.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-06-17 12:53 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-11  8:10 [PATCH -next v3] media: staging: atomisp: use list_splice_init in atomisp_compat_css20.c Baokun Li
2021-06-11  9:59 ` Andy Shevchenko
2021-06-17  8:52 ` kernel test robot
2021-06-17 12:14   ` libaokun (A)
2021-06-17 12:41     ` Andy Shevchenko
2021-06-17 12:53       ` libaokun (A)

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