[PATCH v6 4/5] tracing: fix build error in mm/memory-failure.c

[Xie XiuQi]

next-20150515 fails to build on i386 with the following error:

mm/built-in.o: In function `action_result':
memory-failure.c:(.text+0x344a5): undefined reference to `__tracepoint_memory_failure_event'
memory-failure.c:(.text+0x344d5): undefined reference to `__tracepoint_memory_failure_event'
memory-failure.c:(.text+0x3450c): undefined reference to `__tracepoint_memory_failure_event'

trace_memory_failure_event depends on CONFIG_RAS,
so add 'select RAS' in mm/Kconfig to avoid this error.

Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: Jim Davis <jim.epost@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Chen Gong <gong.chen@xxxxxxxxxxxxxxx>
Acked-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Signed-off-by: Xie XiuQi <xiexiuqi@xxxxxxxxxx>
---
 mm/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index 390214d..c180af8 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -368,6 +368,7 @@ config MEMORY_FAILURE
 	depends on ARCH_SUPPORTS_MEMORY_FAILURE
 	bool "Enable recovery from hardware memory errors"
 	select MEMORY_ISOLATION
+	select RAS
 	help
 	  Enables code to recover from some memory failures on systems
 	  with MCA recovery. This allows a system to continue running
-- 
1.7.1

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