perf tools: Centralize default columns init in perf_hpp__init

Now when diff command is separated from other standard outputs,
we can use perf_hpp__init to initialize all standard columns.

Moving PERF_HPP__OVERHEAD column init back to perf_hpp__init,
and removing extra enable calls.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-nj2xk89tj972tbqswfs498ex@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-report.c

@@ -861,7 +861,6 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		setup_browser(true);
 	else {
 		use_browser = 0;
-		perf_hpp__column_enable(PERF_HPP__OVERHEAD);
 		perf_hpp__init();
 	}
 

tools/perf/ui/browsers/hists.c

@@ -703,8 +703,6 @@ __HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us, NULL)
 
 void hist_browser__init_hpp(void)
 {
-	perf_hpp__column_enable(PERF_HPP__OVERHEAD);
-
 	perf_hpp__init();
 
 	perf_hpp__format[PERF_HPP__OVERHEAD].color =

tools/perf/ui/hist.c

@@ -421,6 +421,8 @@ LIST_HEAD(perf_hpp__list);
 
 void perf_hpp__init(void)
 {
+	perf_hpp__column_enable(PERF_HPP__OVERHEAD);
+
 	if (symbol_conf.show_cpu_utilization) {
 		perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS);
 		perf_hpp__column_enable(PERF_HPP__OVERHEAD_US);

tools/perf/ui/setup.c

@@ -30,7 +30,6 @@ void setup_browser(bool fallback_to_pager)
 		if (fallback_to_pager)
 			setup_pager();
 
-		perf_hpp__column_enable(PERF_HPP__OVERHEAD);
 		perf_hpp__init();
 		break;
 	}