752 	int i, depth = READ_ONCE(p->lockdep_depth);  in lockdep_print_held_locks()  local
754 	if (!depth)  in lockdep_print_held_locks()
757 		printk("%d lock%s held by %s/%d:\n", depth,  in lockdep_print_held_locks()
758 		       depth > 1 ? "s" : "", p->comm, task_pid_nr(p));  in lockdep_print_held_locks()
765 	for (i = 0; i < depth; i++) {  in lockdep_print_held_locks()
1008 	for (i = chain->base; i < chain->base + chain->depth; i++)  in check_lock_chain_key()
1494 	int depth = 0;  in get_lock_depth()  local
1499 		depth++;  in get_lock_depth()
1501 	return depth;  in get_lock_depth()
1819 print_circular_bug_entry(struct lock_list *target, int depth)  in print_circular_bug_entry()  argument
1823 	printk("\n-> #%u", depth);  in print_circular_bug_entry()
1884 print_circular_bug_header(struct lock_list *entry, unsigned int depth,  in print_circular_bug_header()  argument
1908 	print_circular_bug_entry(entry, depth);  in print_circular_bug_header()
1981 	int depth;  in print_circular_bug()  local
1990 	depth = get_lock_depth(target);  in print_circular_bug()
1992 	print_circular_bug_header(target, depth, check_src, check_tgt);  in print_circular_bug()
1998 		print_circular_bug_entry(parent, --depth);  in print_circular_bug()
2282 static void print_lock_class_header(struct lock_class *class, int depth)  in print_lock_class_header()  argument
2286 	printk("%*s->", depth, "");  in print_lock_class_header()
2295 			int len = depth;  in print_lock_class_header()
2297 			len += printk("%*s   %s", depth, "", usage_str[bit]);  in print_lock_class_header()
2302 	printk("%*s }\n", depth, "");  in print_lock_class_header()
2305 		depth, "", class->key, class->key);  in print_lock_class_header()
2365 	int depth;  in print_shortest_lock_dependencies()  local
2368 	depth = get_lock_depth(leaf);  in print_shortest_lock_dependencies()
2371 		print_lock_class_header(entry->class, depth);  in print_shortest_lock_dependencies()
2372 		printk("%*s ... acquired at:\n", depth, "");  in print_shortest_lock_dependencies()
2376 		if (depth == 0 && (entry != root)) {  in print_shortest_lock_dependencies()
2382 		depth--;  in print_shortest_lock_dependencies()
2383 	} while (entry && (depth >= 0));  in print_shortest_lock_dependencies()
2412 	int depth;  in print_shortest_lock_dependencies_backwards()  local
2415 	depth = get_lock_depth(leaf);  in print_shortest_lock_dependencies_backwards()
2418 		print_lock_class_header(entry->class, depth);  in print_shortest_lock_dependencies_backwards()
2420 			printk("%*s ... acquired at:\n", depth, "");  in print_shortest_lock_dependencies_backwards()
2431 		if (depth == 0 && (entry != root)) {  in print_shortest_lock_dependencies_backwards()
2437 		depth--;  in print_shortest_lock_dependencies_backwards()
2438 	} while (entry && (depth >= 0));  in print_shortest_lock_dependencies_backwards()
3151 	int depth = curr->lockdep_depth;  in check_prevs_add()  local
3159 	if (!depth)  in check_prevs_add()
3165 	if (curr->held_locks[depth].irq_context !=  in check_prevs_add()
3166 			curr->held_locks[depth-1].irq_context)  in check_prevs_add()
3170 		u16 distance = curr->lockdep_depth - depth + 1;  in check_prevs_add()
3171 		hlock = curr->held_locks + depth - 1;  in check_prevs_add()
3188 		depth--;  in check_prevs_add()
3192 		if (!depth)  in check_prevs_add()
3197 		if (curr->held_locks[depth].irq_context !=  in check_prevs_add()
3198 				curr->held_locks[depth-1].irq_context)  in check_prevs_add()
3494 	int depth = curr->lockdep_depth;  in print_chain_keys_held_locks()  local
3497 	printk("depth: %u (irq_context %u)\n", depth - i + 1,  in print_chain_keys_held_locks()
3499 	for (; i < depth; i++) {  in print_chain_keys_held_locks()
3516 	printk("depth: %u\n", chain->depth);  in print_chain_keys_chain()
3517 	for (i = 0; i < chain->depth; i++) {  in print_chain_keys_chain()
3564 	if (DEBUG_LOCKS_WARN_ON(chain->depth != curr->lockdep_depth - (i - 1))) {  in check_no_collision()
3569 	for (j = 0; j < chain->depth - 1; j++, i++) {  in check_no_collision()
3643 	chain->depth = curr->lockdep_depth + 1 - i;  in add_chain_cache()
3649 	j = alloc_chain_hlocks(chain->depth);  in add_chain_cache()
3660 	for (j = 0; j < chain->depth - 1; j++, i++) {  in add_chain_cache()
3951 	int depth;  in print_irq_inversion_bug()  local
3974 	depth = get_lock_depth(other);  in print_irq_inversion_bug()
3976 		if (depth == 0 && (entry != root)) {  in print_irq_inversion_bug()
3982 		depth--;  in print_irq_inversion_bug()
3983 	} while (entry && entry != root && (depth >= 0));  in print_irq_inversion_bug()
4529 	unsigned int depth = curr->lockdep_depth;  in separate_irq_context()  local
4534 	if (depth) {  in separate_irq_context()
4537 		prev_hlock = curr->held_locks + depth-1;  in separate_irq_context()
4691 	int depth;  in check_wait_context()  local
4702 	for (depth = curr->lockdep_depth - 1; depth >= 0; depth--) {  in check_wait_context()
4703 		struct held_lock *prev = curr->held_locks + depth;  in check_wait_context()
4707 	depth++;  in check_wait_context()
4711 	for (; depth < curr->lockdep_depth; depth++) {  in check_wait_context()
4712 		struct held_lock *prev = curr->held_locks + depth;  in check_wait_context()
4877 	unsigned int depth;  in __lock_acquire()  local
4914 	depth = curr->lockdep_depth;  in __lock_acquire()
4918 	if (DEBUG_LOCKS_WARN_ON(depth >= MAX_LOCK_DEPTH))  in __lock_acquire()
4923 	if (depth) { /* we're holding locks */  in __lock_acquire()
4924 		hlock = curr->held_locks + depth - 1;  in __lock_acquire()
4942 	hlock = curr->held_locks + depth;  in __lock_acquire()
4989 	if (!depth) {  in __lock_acquire()
5011 		WARN_ON_ONCE(depth && !hlock_class(hlock - 1)->key);  in __lock_acquire()
5110 					unsigned int depth, int *idx)  in find_held_lock()  argument
5115 	i = depth - 1;  in find_held_lock()
5143 static int reacquire_held_locks(struct task_struct *curr, unsigned int depth,  in reacquire_held_locks()  argument
5152 	for (hlock = curr->held_locks + idx; idx < depth; idx++, hlock++) {  in reacquire_held_locks()
5181 	unsigned int depth, merged = 0;  in __lock_set_class()  local
5189 	depth = curr->lockdep_depth;  in __lock_set_class()
5194 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_set_class()
5197 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_set_class()
5212 	if (reacquire_held_locks(curr, depth, i, &merged))  in __lock_set_class()
5219 	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - merged))  in __lock_set_class()
5227 	unsigned int depth, merged = 0;  in __lock_downgrade()  local
5234 	depth = curr->lockdep_depth;  in __lock_downgrade()
5239 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_downgrade()
5242 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_downgrade()
5255 	if (reacquire_held_locks(curr, depth, i, &merged))  in __lock_downgrade()
5266 	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth))  in __lock_downgrade()
5281 	unsigned int depth, merged = 1;  in __lock_release()  local
5288 	depth = curr->lockdep_depth;  in __lock_release()
5293 	if (depth <= 0) {  in __lock_release()
5302 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_release()
5338 	if (i == depth-1)  in __lock_release()
5341 	if (reacquire_held_locks(curr, depth, i + 1, &merged))  in __lock_release()
5349 	DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - merged);  in __lock_release()
5765 	unsigned int depth;  in __lock_contended()  local
5768 	depth = curr->lockdep_depth;  in __lock_contended()
5773 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_contended()
5776 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_contended()
5806 	unsigned int depth;  in __lock_acquired()  local
5810 	depth = curr->lockdep_depth;  in __lock_acquired()
5815 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_acquired()
5818 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_acquired()
5915 	for (i = chain->base; i < chain->base + chain->depth; i++) {  in remove_class_from_lock_chain()
5928 	free_chain_hlocks(chain->base, chain->depth);  in remove_class_from_lock_chain()