perf tools: Output 'perf list' to stdout not stderr

Writing to stdout is probably the expected behavior because the
user explicitly asked for a list.

Signed-off-by: Marti Raudsepp <marti@juffo.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <4ebb59420ef057972167.1256603585@localhost>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index e9e6d5c..31baa5a 100644 (file)
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -806,7 +806,7 @@ static void print_tracepoint_events(void)
                for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
                        snprintf(evt_path, MAXPATHLEN, "%s:%s",
                                 sys_dirent.d_name, evt_dirent.d_name);
-                       fprintf(stderr, "  %-42s [%s]\n", evt_path,
+                       printf("  %-42s [%s]\n", evt_path,
                                event_type_descriptors[PERF_TYPE_TRACEPOINT+1]);
                }
                closedir(evt_dir);
@@ -823,8 +823,8 @@ void print_events(void)
        unsigned int i, type, op, prev_type = -1;
        char name[40];
 
-       fprintf(stderr, "\n");
-       fprintf(stderr, "List of pre-defined events (to be used in -e):\n");
+       printf("\n");
+       printf("List of pre-defined events (to be used in -e):\n");
 
        for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
                type = syms->type + 1;
@@ -832,19 +832,19 @@ void print_events(void)
                        type = 0;
 
                if (type != prev_type)
-                       fprintf(stderr, "\n");
+                       printf("\n");
 
                if (strlen(syms->alias))
                        sprintf(name, "%s OR %s", syms->symbol, syms->alias);
                else
                        strcpy(name, syms->symbol);
-               fprintf(stderr, "  %-42s [%s]\n", name,
+               printf("  %-42s [%s]\n", name,
                        event_type_descriptors[type]);
 
                prev_type = type;
        }
 
-       fprintf(stderr, "\n");
+       printf("\n");
        for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
                for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
                        /* skip invalid cache type */
@@ -852,17 +852,17 @@ void print_events(void)
                                continue;
 
                        for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
-                               fprintf(stderr, "  %-42s [%s]\n",
+                               printf("  %-42s [%s]\n",
                                        event_cache_name(type, op, i),
                                        event_type_descriptors[4]);
                        }
                }
        }
 
-       fprintf(stderr, "\n");
-       fprintf(stderr, "  %-42s [raw hardware event descriptor]\n",
+       printf("\n");
+       printf("  %-42s [raw hardware event descriptor]\n",
                "rNNN");
-       fprintf(stderr, "\n");
+       printf("\n");
 
        print_tracepoint_events();