perf tools: Fix hist_entry__filter() for hierarchy

When hierarchy mode is enabled each output format is in a separate hpp
list.  So when applying a filter it should check all formats in the
list.  Currently it only checks a single ->fmt field which was not set
properly.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1457531222-18130-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/sort.c

@@ -1602,16 +1602,30 @@ int hist_entry__filter(struct hist_entry *he, int type, const void *arg)
 {
 	struct perf_hpp_fmt *fmt;
 	struct hpp_sort_entry *hse;
+	int ret = -1;
+	int r;
 
-	fmt = he->fmt;
-	if (fmt == NULL || !perf_hpp__is_sort_entry(fmt))
-		return -1;
+	perf_hpp_list__for_each_format(he->hpp_list, fmt) {
+		if (!perf_hpp__is_sort_entry(fmt))
+			continue;
 
-	hse = container_of(fmt, struct hpp_sort_entry, hpp);
-	if (hse->se->se_filter == NULL)
-		return -1;
+		hse = container_of(fmt, struct hpp_sort_entry, hpp);
+		if (hse->se->se_filter == NULL)
+			continue;
 
-	return hse->se->se_filter(he, type, arg);
+		/*
+		 * hist entry is filtered if any of sort key in the hpp list
+		 * is applied.  But it should skip non-matched filter types.
+		 */
+		r = hse->se->se_filter(he, type, arg);
+		if (r >= 0) {
+			if (ret < 0)
+				ret = 0;
+			ret |= r;
+		}
+	}
+
+	return ret;
 }
 
 static int __sort_dimension__add_hpp_sort(struct sort_dimension *sd,