Re: [Intel-gfx] [PATCH v8 07/16] mei: gsc: wait for reset thread on stop

From: Ceraolo Spurio, Daniele
Date: Wed Sep 07 2022 - 15:07:29 EST




On 9/7/2022 8:58 AM, Tomas Winkler wrote:
From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>

Wait for reset work to complete before initiating
stop reset flow sequence.

Signed-off-by: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>

This is unchanged from the previously reviewed rev (apart from the fixed date in the header), so this still applies:

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>

Daniele

---
drivers/misc/mei/init.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index eb052005ca86..bc054baf496c 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright (c) 2012-2019, Intel Corporation. All rights reserved.
+ * Copyright (c) 2012-2022, Intel Corporation. All rights reserved.
* Intel Management Engine Interface (Intel MEI) Linux driver
*/
@@ -320,6 +320,8 @@ void mei_stop(struct mei_device *dev)
mei_clear_interrupts(dev);
mei_synchronize_irq(dev);
+ /* to catch HW-initiated reset */
+ mei_cancel_work(dev);
mutex_lock(&dev->device_lock);