linux-kernel - [RFC PATCH v2 4/8] firmware: arm_scmi: Use new trace event scmi_xfer_response

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Date:   Mon,  5 Jul 2021 18:10:18 +0100
From:   Cristian Marussi <cristian.marussi@....com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     sudeep.holla@....com, james.quinlan@...adcom.com,
        Jonathan.Cameron@...wei.com, f.fainelli@...il.com,
        etienne.carriere@...aro.org, vincent.guittot@...aro.org,
        souvik.chakravarty@....com, cristian.marussi@....com
Subject: [RFC PATCH v2 4/8] firmware: arm_scmi: Use new trace event scmi_xfer_response_wait

Use new trace event to mark start of waiting for response section.

Signed-off-by: Cristian Marussi <cristian.marussi@....com>
---
 drivers/firmware/arm_scmi/driver.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 2e920df73e46..43aff6b26571 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -943,6 +943,11 @@ static int scmi_wait_for_message_response(struct scmi_chan_info *cinfo,
 	struct device *dev = info->dev;
 	int ret = 0, timeout_ms = info->desc->max_rx_timeout_ms;
 
+	trace_scmi_xfer_response_wait(xfer->transfer_id, xfer->hdr.id,
+				      xfer->hdr.protocol_id, xfer->hdr.seq,
+				      xfer->hdr.poll_completion,
+				      info->desc->atomic_capable);
+
 	if (!xfer->hdr.poll_completion) {
 		if (!info->desc->atomic_capable) {
 			if (!wait_for_completion_timeout(&xfer->done,
-- 
2.17.1