[PATCH 1/7 v5] trace, RAS: Add basic RAS trace event

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To avoid confuision and conflict of usage for RAS related trace event,
add an unified RAS trace event stub.

v5 -> v4: remove explicit RAS menuconfig.
v4 -> v3: change dependency rule of RAS_TRACE.
v3 -> v2: fix dependency in Kconfig.
v2 -> v1: adjust Kconfig to take RAS as a separate subsystem.

Signed-off-by: Chen, Gong <gong.chen@xxxxxxxxxxxxxxx>
---
 drivers/Kconfig        |  2 ++
 drivers/Makefile       |  1 +
 drivers/edac/Kconfig   |  1 +
 drivers/edac/edac_mc.c |  3 ---
 drivers/ras/Kconfig    |  6 ++++++
 drivers/ras/Makefile   |  1 +
 drivers/ras/ras.c      | 12 ++++++++++++
 7 files changed, 23 insertions(+), 3 deletions(-)
 create mode 100644 drivers/ras/Kconfig
 create mode 100644 drivers/ras/Makefile
 create mode 100644 drivers/ras/ras.c

diff --git a/drivers/Kconfig b/drivers/Kconfig
index 0e87a34..4e6e66c 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -176,4 +176,6 @@ source "drivers/powercap/Kconfig"
 
 source "drivers/mcb/Kconfig"
 
+source "drivers/ras/Kconfig"
+
 endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index f98b50d..65c32b1 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -158,3 +158,4 @@ obj-$(CONFIG_NTB)		+= ntb/
 obj-$(CONFIG_FMC)		+= fmc/
 obj-$(CONFIG_POWERCAP)		+= powercap/
 obj-$(CONFIG_MCB)		+= mcb/
+obj-$(CONFIG_RAS)		+= ras/
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 878f090..1589a86 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -72,6 +72,7 @@ config EDAC_MCE_INJ
 
 config EDAC_MM_EDAC
 	tristate "Main Memory EDAC (Error Detection And Correction) reporting"
+	select RAS_TRACE
 	help
 	  Some systems are able to detect and correct errors in main
 	  memory.  EDAC can report statistics on memory error
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 2c694b5..9f134823 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -33,9 +33,6 @@
 #include <asm/edac.h>
 #include "edac_core.h"
 #include "edac_module.h"
-
-#define CREATE_TRACE_POINTS
-#define TRACE_INCLUDE_PATH ../../include/ras
 #include <ras/ras_event.h>
 
 /* lock to memory controller's control array */
diff --git a/drivers/ras/Kconfig b/drivers/ras/Kconfig
new file mode 100644
index 0000000..85febfd
--- /dev/null
+++ b/drivers/ras/Kconfig
@@ -0,0 +1,6 @@
+config RAS_TRACE
+	def_bool n
+	select RAS
+
+config RAS
+	bool
diff --git a/drivers/ras/Makefile b/drivers/ras/Makefile
new file mode 100644
index 0000000..223e806
--- /dev/null
+++ b/drivers/ras/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_RAS) += ras.o
diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c
new file mode 100644
index 0000000..b0c6ed1
--- /dev/null
+++ b/drivers/ras/ras.c
@@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2014 Intel Corporation
+ *
+ * Authors:
+ *	Chen, Gong <gong.chen@xxxxxxxxxxxxxxx>
+ */
+
+#define CREATE_TRACE_POINTS
+#define TRACE_INCLUDE_PATH ../../include/ras
+#include <ras/ras_event.h>
+
+EXPORT_TRACEPOINT_SYMBOL_GPL(mc_event);
-- 
2.0.0.rc2

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