From 98526ee7229be8537373aebe037b74cac112d84b Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Thu, 31 Jul 2014 09:00:59 +0300
Subject: [PATCH] perf script: Allow callchains if any event samples them

perf script was not displaying callchains if any selected event did not
have PERF_SAMPLE_CALLCHAIN.

Change this to disable callchains only if all selected events do not
have PERF_SAMPLE_CALLCHAIN.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406786474-9306-17-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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