Received-SPF: pass (google.com: domain of linux-kernel+bounces-161726-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1;
Feedback-ID: ie8e14432:Fastmail
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
To: linux1394-devel@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 1/5] firewire: core: add support for Linux kernel tracepoints
Date: Mon, 29 Apr 2024 13:32:14 +0900
Message-ID: <20240429043218.609398-2-o-takashi@sakamocchi.jp>
In-Reply-To: <20240429043218.609398-1-o-takashi@sakamocchi.jp>
References: <20240429043218.609398-1-o-takashi@sakamocchi.jp>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

The Linux Kernel Tracepoints framework is enough useful to trace
packet data inbound to and outbound from core.

This commit adds firewire subsystem to use the framework.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 drivers/firewire/Makefile       |  2 +-
 drivers/firewire/core-trace.c   |  5 +++++
 include/trace/events/firewire.h | 15 +++++++++++++++
 3 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 drivers/firewire/core-trace.c
 create mode 100644 include/trace/events/firewire.h

diff --git a/drivers/firewire/Makefile b/drivers/firewire/Makefile
index bbde29a0fba6..013e1f2641bd 100644
--- a/drivers/firewire/Makefile
+++ b/drivers/firewire/Makefile
@@ -3,7 +3,7 @@
 # Makefile for the Linux IEEE 1394 implementation
 #
 
-firewire-core-y += core-card.o core-cdev.o core-device.o \
+firewire-core-y += core-trace.o core-card.o core-cdev.o core-device.o \
                    core-iso.o core-topology.o core-transaction.o
 firewire-ohci-y += ohci.o
 firewire-sbp2-y += sbp2.o
diff --git a/drivers/firewire/core-trace.c b/drivers/firewire/core-trace.c
new file mode 100644
index 000000000000..96cbd9d384dc
--- /dev/null
+++ b/drivers/firewire/core-trace.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2024 Takashi Sakamoto
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/firewire.h>
diff --git a/include/trace/events/firewire.h b/include/trace/events/firewire.h
new file mode 100644
index 000000000000..bc55eaabf695
--- /dev/null
+++ b/include/trace/events/firewire.h
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2024 Takashi Sakamoto
+
+#define TRACE_SYSTEM	firewire
+
+#if !defined(_FIREWIRE_TRACE_EVENT_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _FIREWIRE_TRACE_EVENT_H
+
+#include <linux/tracepoint.h>
+
+// Placeholder for future use.
+
+#endif // _FIREWIRE_TRACE_EVENT_H
+
+#include <trace/define_trace.h>
-- 
2.43.0