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Subject[PATCH 1/1] perf tool: add hists__init for perf diff
Date
From: Kan Liang <kan.liang@intel.com>

perf diff also uses hists/hist_entries, hists__init() should be called
before creating any evsels.

Signed-off-by: Kan Liang <kan.liang@intel.com>
---
tools/perf/builtin-diff.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 8c5c11c..25114c9 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -1142,6 +1142,11 @@ static int data_init(int argc, const char **argv)

int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
{
+ int ret = hists__init();
+
+ if (ret < 0)
+ return ret;
+
perf_config(perf_default_config, NULL);

argc = parse_options(argc, argv, options, diff_usage, 0);
--
1.8.3.2


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