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[PATCH v7 36/37] tracing: Add inter-event blurb to HIST_TRIGGERS config option

So that users know that inter-event tracing is supported as part of
the HIST_TRIGGERS option, include text to that effect in the help

Signed-off-by: Tom Zanussi <tom.zanussi@xxxxxxxxxxxxxxx>
 kernel/trace/Kconfig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index b8395a0..bb7cb8d 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -596,7 +596,10 @@ config HIST_TRIGGERS
 	  event activity as an initial guide for further investigation
 	  using more advanced tools.
-	  See Documentation/trace/events.txt.
+	  Inter-event tracing of quantities such as latencies is also
+	  supported using hist triggers under this option.
+	  See Documentation/trace/histogram.txt.
 	  If in doubt, say N.