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authorTom Parkin <tparkin@katalix.com>2020-08-22 17:59:04 +0300
committerDavid S. Miller <davem@davemloft.net>2020-08-22 22:44:37 +0300
commit3f117d6f4bbca722d9519e545294852d8e714fae (patch)
treea61a8309c9b41ed997892c3b68106311b63f1d81 /net/l2tp
parent5ee759cda51b9b1c28994ea36e314427a58cb6d7 (diff)
downloadlinux-3f117d6f4bbca722d9519e545294852d8e714fae.tar.xz
l2tp: add tracepoint infrastructure to core
The l2tp subsystem doesn't currently make use of tracepoints. As a starting point for adding tracepoints, add skeleton infrastructure for defining tracepoints for the subsystem, and for having them build appropriately whether compiled into the kernel or built as a module. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp')
-rw-r--r--net/l2tp/Makefile2
-rw-r--r--net/l2tp/l2tp_core.c3
-rw-r--r--net/l2tp/trace.h15
3 files changed, 20 insertions, 0 deletions
diff --git a/net/l2tp/Makefile b/net/l2tp/Makefile
index 399a7e5db2f4..cf8f27071d3f 100644
--- a/net/l2tp/Makefile
+++ b/net/l2tp/Makefile
@@ -5,6 +5,8 @@
obj-$(CONFIG_L2TP) += l2tp_core.o
+CFLAGS_l2tp_core.o += -I$(src)
+
# Build l2tp as modules if L2TP is M
obj-$(subst y,$(CONFIG_L2TP),$(CONFIG_PPPOL2TP)) += l2tp_ppp.o
obj-$(subst y,$(CONFIG_L2TP),$(CONFIG_L2TP_IP)) += l2tp_ip.o
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 54f46ed97b3d..aee5b230469f 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -62,6 +62,9 @@
#include "l2tp_core.h"
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
#define L2TP_DRV_VERSION "V2.0"
/* L2TP header constants */
diff --git a/net/l2tp/trace.h b/net/l2tp/trace.h
new file mode 100644
index 000000000000..652778291b77
--- /dev/null
+++ b/net/l2tp/trace.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM l2tp
+
+#if !defined(_TRACE_L2TP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_L2TP_H
+
+#endif /* _TRACE_L2TP_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+#include <trace/define_trace.h>