Patch "media: mediatek: vcodec: using each instance lat_buf count replace core ready list" has been added to the 6.2-stable tree

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This is a note to let you know that I've just added the patch titled

    media: mediatek: vcodec: using each instance lat_buf count replace core ready list

to the 6.2-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     media-mediatek-vcodec-using-each-instance-lat_buf-co.patch
and it can be found in the queue-6.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit cf8fbeb11c2beef97acfa7e1ef28b94864dc9c0f
Author: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
Date:   Wed Feb 1 07:33:11 2023 +0000

    media: mediatek: vcodec: using each instance lat_buf count replace core ready list
    
    [ Upstream commit f7a3780cf96925670736582b9a623a2c9ffb4166 ]
    
    Core Hardware decoder depends on each instance lat_buf count,
    calling queue_work decode again when the lat_buf count of each instance
    isn't zero.
    
    Fixes: 365e4ba01df4 ("media: mtk-vcodec: Add work queue for core hardware decode")
    Signed-off-by: Yunfei Dong <yunfei.dong@xxxxxxxxxxxx>
    Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
    Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
    Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
index 3f016c87d722c..ad5002ca953e0 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
@@ -239,7 +239,7 @@ static void vdec_msg_queue_core_work(struct work_struct *work)
 	mtk_vcodec_dec_disable_hardware(ctx, MTK_VDEC_CORE);
 	vdec_msg_queue_qbuf(&ctx->msg_queue.lat_ctx, lat_buf);
 
-	if (!list_empty(&dev->msg_queue_core_ctx.ready_queue)) {
+	if (atomic_read(&lat_buf->ctx->msg_queue.core_list_cnt)) {
 		mtk_v4l2_debug(3, "re-schedule to decode for core: %d",
 			       dev->msg_queue_core_ctx.ready_num);
 		queue_work(dev->core_workqueue, &msg_queue->core_work);



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