perf diff: Fix usage array, it must end with a NULL entry

Fixing this:

 [acme@doppio linux-2.6-tip]$ perf diff --hell
   Error: unknown option `hell'

  usage: perf diff [<options>] [old_file] [new_file]
 Segmentation fault
 [acme@doppio linux-2.6-tip]$

Also go over the other such arrays to check if they all were OK,
they are, but there were some minor changes to do like making
one static and renaming another to match the command it refers
to.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic 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: <1261161358-23959-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 6 insertions, 6 deletions

diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index e693e6777af5..1e99ac806913 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -17,7 +17,7 @@
 static char const *input_name = "perf.data";
 static int force;
 
-static const char *const buildid_list_usage[] = {
+static const char * const buildid_list_usage[] = {
         "perf buildid-list [<options>]",
         NULL
 };
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 4d33b55d5584..bd71b8ceafb7 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -189,8 +189,9 @@ out_delete:
         return ret;
 }
 
-static const char *const diff_usage[] = {
+static const char * const diff_usage[] = {
         "perf diff [<options>] [old_file] [new_file]",
+        NULL,
 };
 
 static const struct option options[] = {
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 5c2ab5357ec6..db10c0e8ecae 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -294,8 +294,7 @@ setup:
         return 0;
 }
 
-//static const char * const report_usage[] = {
-const char * const report_usage[] = {
+static const char * const report_usage[] = {
         "perf report [<options>] <command>",
         NULL
 };
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index e2285e28720f..574a215e800b 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -512,7 +512,7 @@ static char *get_script_path(const char *script_root, const char *suffix)
         return path;
 }
 
-static const char * const annotate_usage[] = {
+static const char * const trace_usage[] = {
         "perf trace [<options>] <command>",
         NULL
 };
@@ -581,7 +581,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __used)
 
         setup_scripting();
 
-        argc = parse_options(argc, argv, options, annotate_usage,
+        argc = parse_options(argc, argv, options, trace_usage,
                              PARSE_OPT_STOP_AT_NON_OPTION);
 
         if (symbol__init() < 0)