This is a note to let you know that I've just added the patch titled
mailbox: Remove WARN_ON for async_cb.cb in cmdq_exec_done
to the 5.14-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:
mailbox-remove-warn_on-for-async_cb.cb-in-cmdq_exec_.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9c6c41a15802423247ba9ee31bb1235c9d170e51
Author: jason-jh.lin <jason-jh.lin@xxxxxxxxxxxx>
Date: Wed Sep 29 15:08:07 2021 +0800
mailbox: Remove WARN_ON for async_cb.cb in cmdq_exec_done
[ Upstream commit ce1537fe288469bf68ee0aabdb860a790b4755ef ]
Because mtk_drm_crtc_update_config is not using cmdq_pkt_flush_async,
it won't have pkt->async_cb.cb anymore.
So remove the WARN_ON check of pkt->async_cb.cb at cmdq_exec_done.
Fixes: 1b6b0ce2240e ("mailbox: mtk-cmdq: Use mailbox rx_callback")
Signed-off-by: jason-jh.lin <jason-jh.lin@xxxxxxxxxxxx>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
Tested-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
Signed-off-by: Jassi Brar <jaswinder.singh@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 4f907e8f3894b..5e2796db026d2 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -186,7 +186,6 @@ static void cmdq_task_exec_done(struct cmdq_task *task, int sta)
struct cmdq_task_cb *cb = &task->pkt->async_cb;
struct cmdq_cb_data data;
- WARN_ON(cb->cb == (cmdq_async_flush_cb)NULL);
data.sta = sta;
data.data = cb->data;
data.pkt = task->pkt;
