Extern or forward variable declaration at include/linux/lockdep.h, line 13 References: drivers/net/wireless/intel/iwlwifi/iwl-trans.h, line 836 fs/ocfs2/ocfs2.h, line 208 include/linux/jbd2.h, line 1045 include/linux/kernfs.h, line 110 include/linux/lockdep.h, line 13 include/linux/lockdep.h, line 150 include/linux/lockdep.h, line 160 include/linux/lockdep.h, line 161 include/linux/lockdep.h, line 233 include/linux/lockdep.h, line 234 include/linux/lockdep.h, line 268 include/linux/lockdep.h, line 281 include/linux/lockdep.h, line 314 include/linux/lockdep.h, line 334 include/linux/lockdep.h, line 336 include/linux/lockdep.h, line 338 include/linux/lockdep.h, line 343 include/linux/lockdep.h, line 345 include/linux/lockdep.h, line 349 include/linux/lockdep.h, line 363 include/linux/lockdep.h, line 364 include/linux/lockdep.h, line 365 include/linux/lockdep.h, line 448 include/linux/lockdep.h, line 449 include/linux/lockdep.h, line 474 include/linux/lockdep.h, line 475 include/linux/lockdep.h, line 555 include/linux/lockdep.h, line 561 include/linux/mutex.h, line 65 include/linux/mutex.h, line 139 include/linux/mutex.h, line 152 include/linux/rcupdate.h, line 487 include/linux/rcupdate.h, line 492 include/linux/rcupdate.h, line 497 include/linux/rcupdate.h, line 498 include/linux/rcupdate.h, line 499 include/linux/rcupdate.h, line 500 include/linux/rwsem.h, line 42 include/linux/rwsem.h, line 162 include/linux/rwsem.h, line 166 include/linux/seqlock.h, line 50 include/linux/spinlock.h, line 188 include/linux/spinlock_types.h, line 30 include/linux/spinlock_types.h, line 72 include/linux/srcu.h, line 61 include/linux/timer.h, line 29 include/linux/timer.h, line 29 include/linux/timer.h, line 41 include/linux/tty_ldisc.h, line 133 include/linux/workqueue.h, line 105 include/linux/workqueue.h, line 105 include/linux/workqueue.h, line 152 include/linux/workqueue.h, line 209 include/linux/ww_mutex.h, line 37 include/net/sock.h, line 108 include/trace/events/lock.h, line 14 include/trace/events/lock.h, line 16 include/trace/events/lock.h, line 40 include/trace/events/lock.h, line 59 include/trace/events/lock.h, line 68 include/trace/events/lock.h, line 75 kernel/cpu.c, line 224 kernel/locking/lockdep.c, line 530 kernel/locking/lockdep.c, line 656 kernel/locking/lockdep.c, line 686 kernel/locking/lockdep.c, line 718 kernel/locking/lockdep.c, line 1742 kernel/locking/lockdep.c, line 2222 kernel/locking/lockdep.c, line 2277 kernel/locking/lockdep.c, line 3097 kernel/locking/lockdep.c, line 3194 kernel/locking/lockdep.c, line 3200 kernel/locking/lockdep.c, line 3202 kernel/locking/lockdep.c, line 3368 kernel/locking/lockdep.c, line 3396 kernel/locking/lockdep.c, line 3432 kernel/locking/lockdep.c, line 3499 kernel/locking/lockdep.c, line 3582 kernel/locking/lockdep.c, line 3597 kernel/locking/lockdep.c, line 3625 kernel/locking/lockdep.c, line 3645 kernel/locking/lockdep.c, line 3712 kernel/locking/lockdep.c, line 3735 kernel/locking/lockdep.c, line 3737 kernel/locking/lockdep.c, line 3756 kernel/locking/lockdep.c, line 3775 kernel/locking/lockdep.c, line 3795 kernel/locking/lockdep.c, line 3815 kernel/locking/lockdep.c, line 3832 kernel/locking/lockdep.c, line 3861 kernel/locking/lockdep.c, line 3890 kernel/locking/lockdep.c, line 3942 kernel/locking/lockdep.c, line 4002 kernel/locking/lockdep.c, line 4022 kernel/locking/lockdep.c, line 4144 kernel/locking/mutex.c, line 506 kernel/locking/mutex.c, line 628 kernel/locking/rwsem.c, line 149 kernel/locking/spinlock.c, line 389 kernel/printk/printk.c, line 83 kernel/rcu/update.c, line 239 kernel/rcu/update.c, line 244 kernel/rcu/update.c, line 249 kernel/rcu/update.c, line 254 kernel/time/timer.c, line 797 kernel/time/timer.c, line 1264 kernel/time/timer.c, line 1265 kernel/time/timer.c, line 1296 kernel/time/timer.c, line 1296 kernel/time/timer.c, line 1298 kernel/time/timer.c, line 1298 kernel/time/timer.c, line 1305 kernel/time/timer.c, line 1311 kernel/workqueue.c, line 264 kernel/workqueue.c, line 264 kernel/workqueue.c, line 2034 kernel/workqueue.c, line 2034 kernel/workqueue.c, line 2036 kernel/workqueue.c, line 2036 kernel/workqueue.c, line 2093 kernel/workqueue.c, line 2094 kernel/workqueue.c, line 2102 kernel/workqueue.c, line 2103 kernel/workqueue.c, line 2586 kernel/workqueue.c, line 2587 kernel/workqueue.c, line 2820 kernel/workqueue.c, line 2822 kernel/workqueue.c, line 2823 kernel/workqueue.c, line 2846 kernel/workqueue.c, line 2847 kernel/workqueue.c, line 3953 mm/memcontrol.c, line 1399 mm/memory_hotplug.c, line 65