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locking/lockdep: Hide unused 'class' variable 

The usage is now hidden in an #ifdef, so we need to move
the variable itself in there as well to avoid this warning:

  kernel/locking/lockdep_proc.c:203:21: error: unused variable 'class' [-Werror,-Wunused-variable]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qian Cai <cai@lca.pw>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yuyang Du <duyuyang@gmail.com>
Cc: frederic@kernel.org
Fixes: 68d41d8c94 ("locking/lockdep: Fix lock used or unused stats error")
Link: https://lkml.kernel.org/r/20190715092809.736834-1-arnd@arndb.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Arnd Bergmann 2019-07-15 11:27:49 +02:00 committed by Ingo Molnar
parent 6ffddfb9e1
commit 68037aa782
1 changed files with 2 additions and 1 deletions
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3
kernel/locking/lockdep_proc.c
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@ -200,7 +200,6 @@ static void lockdep_stats_debug_show(struct seq_file *m)
static int lockdep_stats_show(struct seq_file *m, void *v) static int lockdep_stats_show(struct seq_file *m, void *v)
{ {
struct lock_class *class;
unsigned long nr_unused = 0, nr_uncategorized = 0, unsigned long nr_unused = 0, nr_uncategorized = 0,
nr_irq_safe = 0, nr_irq_unsafe = 0, nr_irq_safe = 0, nr_irq_unsafe = 0,
nr_softirq_safe = 0, nr_softirq_unsafe = 0, nr_softirq_safe = 0, nr_softirq_unsafe = 0,
@ -211,6 +210,8 @@ static int lockdep_stats_show(struct seq_file *m, void *v)
sum_forward_deps = 0; sum_forward_deps = 0;
#ifdef CONFIG_PROVE_LOCKING #ifdef CONFIG_PROVE_LOCKING
struct lock_class *class;
list_for_each_entry(class, &all_lock_classes, lock_entry) { list_for_each_entry(class, &all_lock_classes, lock_entry) {
if (class->usage_mask == 0) if (class->usage_mask == 0)