Arnaldo Carvalho de Melo 1688c2fdf6 perf evsel: Check if callchain is enabled before setting it up
The construct:

	if (callchain_param)
		perf_evsel__config_callchain(evsel, opts, &callchain_param);

happens in several places, so make perf_evsel__config_callchain() work
just like free(NULL), do nothing if param->enabled is not set.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hendrick Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ykk0qzxnxwx3o611ctjnmxav@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-01-12 16:57:16 -03:00
..
2017-12-18 06:26:07 +01:00
2015-08-21 11:34:10 -03:00
2016-10-24 11:07:39 -03:00
2017-12-18 06:26:07 +01:00
2017-11-18 08:59:27 +01:00
2017-07-18 23:14:08 -03:00
2017-12-27 12:15:47 -03:00
2016-08-23 15:37:33 -03:00