lockdep: fix build if CONFIG_PROVE_LOCKING not defined

If CONFIG_PROVE_LOCKING not defined, then no dependency information
is available.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 6 insertions, 6 deletions

diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
index fa19aee604c2..4b194d34d77f 100644
--- a/kernel/lockdep_proc.c
+++ b/kernel/lockdep_proc.c
@@ -82,7 +82,6 @@ static void print_name(struct seq_file *m, struct lock_class *class)
 
 static int l_show(struct seq_file *m, void *v)
 {
-        unsigned long nr_forward_deps, nr_backward_deps;
         struct lock_class *class = v;
         struct lock_list *entry;
         char c1, c2, c3, c4;
@@ -96,11 +95,10 @@ static int l_show(struct seq_file *m, void *v)
 #ifdef CONFIG_DEBUG_LOCKDEP
         seq_printf(m, " OPS:%8ld", class->ops);
 #endif
-        nr_forward_deps = lockdep_count_forward_deps(class);
-        seq_printf(m, " FD:%5ld", nr_forward_deps);
-
-        nr_backward_deps = lockdep_count_backward_deps(class);
-        seq_printf(m, " BD:%5ld", nr_backward_deps);
+#ifdef CONFIG_PROVE_LOCKING
+        seq_printf(m, " FD:%5ld", lockdep_count_forward_deps(class));
+        seq_printf(m, " BD:%5ld", lockdep_count_backward_deps(class));
+#endif
 
         get_usage_chars(class, &c1, &c2, &c3, &c4);
         seq_printf(m, " %c%c%c%c", c1, c2, c3, c4);
@@ -325,7 +323,9 @@ static int lockdep_stats_show(struct seq_file *m, void *v)
                 if (class->usage_mask & LOCKF_ENABLED_HARDIRQS_READ)
                         nr_hardirq_read_unsafe++;
 
+#ifdef CONFIG_PROVE_LOCKING
                 sum_forward_deps += lockdep_count_forward_deps(class);
+#endif
         }
 #ifdef CONFIG_DEBUG_LOCKDEP
         DEBUG_LOCKS_WARN_ON(debug_atomic_read(&nr_unused_locks) != nr_unused);