linux-kernel - [PATCH v2 1/5] include: trace: Widen the tag buffer in trace_scmi_dump

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Date: Mon, 25 Mar 2024 20:46:16 +0000
From: Cristian Marussi <cristian.marussi@....com>
To: linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: sudeep.holla@....com,
	Cristian Marussi <cristian.marussi@....com>
Subject: [PATCH v2 1/5] include: trace: Widen the tag buffer in trace_scmi_dump_msg

A bigger buffer allow for more diverse tag names.

Signed-off-by: Cristian Marussi <cristian.marussi@....com>
---
 include/trace/events/scmi.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/scmi.h b/include/trace/events/scmi.h
index 422c1ad9484d..127300481123 100644
--- a/include/trace/events/scmi.h
+++ b/include/trace/events/scmi.h
@@ -7,6 +7,8 @@
 
 #include <linux/tracepoint.h>
 
+#define TRACE_SCMI_MAX_TAG_LEN	6
+
 TRACE_EVENT(scmi_fc_call,
 	TP_PROTO(u8 protocol_id, u8 msg_id, u32 res_id, u32 val1, u32 val2),
 	TP_ARGS(protocol_id, msg_id, res_id, val1, val2),
@@ -150,7 +152,7 @@ TRACE_EVENT(scmi_msg_dump,
 		__field(u8, channel_id)
 		__field(u8, protocol_id)
 		__field(u8, msg_id)
-		__array(char, tag, 5)
+		__array(char, tag, TRACE_SCMI_MAX_TAG_LEN)
 		__field(u16, seq)
 		__field(int, status)
 		__field(size_t, len)
@@ -162,7 +164,7 @@ TRACE_EVENT(scmi_msg_dump,
 		__entry->channel_id = channel_id;
 		__entry->protocol_id = protocol_id;
 		__entry->msg_id = msg_id;
-		strscpy(__entry->tag, tag, 5);
+		strscpy(__entry->tag, tag, TRACE_SCMI_MAX_TAG_LEN);
 		__entry->seq = seq;
 		__entry->status = status;
 		__entry->len = len;
-- 
2.44.0