linux-kernel - [PATCH v2 2/2] cxl/mbox: Add handle to event processing debug

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Date:   Tue, 01 Aug 2023 13:13:29 -0700
From:   Ira Weiny <ira.weiny@...el.com>
To:     Davidlohr Bueso <dave@...olabs.net>,
        Jonathan Cameron <jonathan.cameron@...wei.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dan Williams <dan.j.williams@...el.com>
Cc:     linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ira Weiny <ira.weiny@...el.com>
Subject: [PATCH v2 2/2] cxl/mbox: Add handle to event processing debug

Knowing which handle is being processed helped in debugging new event
code.  Add a dev_dbg() message with this information.

Signed-off-by: Ira Weiny <ira.weiny@...el.com>
---
 drivers/cxl/core/mbox.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c
index a1c490f66bbf..f052d5f174ee 100644
--- a/drivers/cxl/core/mbox.c
+++ b/drivers/cxl/core/mbox.c
@@ -947,9 +947,13 @@ static void cxl_mem_get_records_log(struct cxl_memdev_state *mds,
 		if (!nr_rec)
 			break;
 
-		for (i = 0; i < nr_rec; i++)
+		for (i = 0; i < nr_rec; i++) {
+			dev_dbg(dev, "Event log %d: processing handle %u\n",
+				type,
+				le16_to_cpu(payload->records[i].hdr.handle));
 			cxl_event_trace_record(cxlmd, type,
 					       &payload->records[i]);
+		}
 
 		if (payload->flags & CXL_GET_EVENT_FLAG_OVERFLOW)
 			trace_cxl_overflow(cxlmd, type, payload);

-- 
2.41.0