This is a note to let you know that I've just added the patch titled
firmware: arm_scmi: Clear stale xfer->hdr.status
to the 5.15-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:
firmware-arm_scmi-clear-stale-xfer-hdr.status.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1c49b8a82d82d52367f8395e47d54323b0ced135
Author: Cristian Marussi <cristian.marussi@xxxxxxx>
Date: Thu Dec 22 18:38:19 2022 +0000
firmware: arm_scmi: Clear stale xfer->hdr.status
[ Upstream commit f6ca5059dc0d6608dc46070f48e396d611f240d6 ]
Stale error status reported from a previous message transaction must be
cleared before starting a new transaction to avoid being confusingly
reported in the following SCMI message dump traces.
Signed-off-by: Cristian Marussi <cristian.marussi@xxxxxxx>
Link: https://lore.kernel.org/r/20221222183823.518856-2-cristian.marussi@xxxxxxx
Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index a8ff4c9508b7..11842497b226 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -783,6 +783,8 @@ static int do_xfer(const struct scmi_protocol_handle *ph,
xfer->hdr.protocol_id, xfer->hdr.seq,
xfer->hdr.poll_completion);
+ /* Clear any stale status */
+ xfer->hdr.status = SCMI_SUCCESS;
xfer->state = SCMI_XFER_SENT_OK;
/*
* Even though spinlocking is not needed here since no race is possible
