perf symbols: Make symbol_conf global

This simplifies a lot of functions, less stuff to be done by
tool writers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260914682-29652-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index dda6086..e078797 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -505,8 +505,7 @@
 static int __cmd_kmem(void)
 {
 	int err;
-	struct perf_session *session = perf_session__new(input_name, O_RDONLY,
-							 0, NULL);
+	struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
 	if (session == NULL)
 		return -ENOMEM;
 
@@ -767,7 +766,7 @@
 
 int cmd_kmem(int argc, const char **argv, const char *prefix __used)
 {
-	symbol__init(0);
+	symbol__init();
 
 	argc = parse_options(argc, argv, kmem_options, kmem_usage, 0);