perf tools: Unify debug messages mechanisms

We were using eprintf in some places, that looks at a global
'verbose' level, and at other places passing a 'v' parameter to
specify the verbosity level, unify it by introducing
pr_{err,warning,debug,etc}, just like in the kernel.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256153646-10097-1-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 72d5842..b3d814b 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -689,7 +689,8 @@
 		dump_printf("... chain: nr:%Lu\n", chain->nr);
 
 		if (validate_chain(chain, event) < 0) {
-			eprintf("call-chain problem with event, skipping it.\n");
+			pr_debug("call-chain problem with event, "
+				 "skipping it.\n");
 			return 0;
 		}
 
@@ -700,7 +701,7 @@
 	}
 
 	if (thread == NULL) {
-		eprintf("problem processing %d event, skipping it.\n",
+		pr_debug("problem processing %d event, skipping it.\n",
 			event->header.type);
 		return -1;
 	}
@@ -738,7 +739,7 @@
 
 	if (hist_entry__add(thread, map, sym, ip,
 			    chain, level, period)) {
-		eprintf("problem incrementing symbol count, skipping event\n");
+		pr_debug("problem incrementing symbol count, skipping event\n");
 		return -1;
 	}
 
@@ -750,7 +751,7 @@
 static int
 process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
 {
-	struct map *map = map__new(&event->mmap, cwd, cwdlen, 0, NULL, verbose);
+	struct map *map = map__new(&event->mmap, cwd, cwdlen, 0, NULL);
 	struct thread *thread = threads__findnew(event->mmap.pid);
 
 	dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",