From: Tom Zanussi <tom.zanu...@linux.intel.com>

The kbuild test robot reported a compile error if HIST_TRIGGERS was
enabled but nothing else that selected TRACING was configured in.

HIST_TRIGGERS should directly select it and not rely on anything else
to do it.

Link: http://lkml.kernel.org/r/57791866.8080...@linux.intel.com

Reported-by: kbuild test robot <fennguang...@intel.com>
Fixes: 7ef224d1d0e3a ("tracing: Add 'hist' event trigger command")
Signed-off-by: Tom Zanussi <tom.zanu...@linux.intel.com>
Signed-off-by: Steven Rostedt <rost...@goodmis.org>
---
 kernel/trace/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index fafeaf803bd0..f4b86e8ca1e7 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -542,6 +542,7 @@ config HIST_TRIGGERS
        bool "Histogram triggers"
        depends on ARCH_HAVE_NMI_SAFE_CMPXCHG
        select TRACING_MAP
+       select TRACING
        default n
        help
          Hist triggers allow one or more arbitrary trace event fields
-- 
2.8.1


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