780 	int i, depth = READ_ONCE(p->lockdep_depth);  in lockdep_print_held_locks()  local
782 	if (!depth)  in lockdep_print_held_locks()
785 		printk("%d lock%s held by %s/%d:\n", depth,  in lockdep_print_held_locks()
786 		       depth > 1 ? "s" : "", p->comm, task_pid_nr(p));  in lockdep_print_held_locks()
793 	for (i = 0; i < depth; i++) {  in lockdep_print_held_locks()
1050 	for (i = chain->base; i < chain->base + chain->depth; i++)  in check_lock_chain_key()
1540 	int depth = 0;  in get_lock_depth()  local
1545 		depth++;  in get_lock_depth()
1547 	return depth;  in get_lock_depth()
1865 print_circular_bug_entry(struct lock_list *target, int depth)  in print_circular_bug_entry()  argument
1869 	printk("\n-> #%u", depth);  in print_circular_bug_entry()
1930 print_circular_bug_header(struct lock_list *entry, unsigned int depth,  in print_circular_bug_header()  argument
1954 	print_circular_bug_entry(entry, depth);  in print_circular_bug_header()
2027 	int depth;  in print_circular_bug()  local
2036 	depth = get_lock_depth(target);  in print_circular_bug()
2038 	print_circular_bug_header(target, depth, check_src, check_tgt);  in print_circular_bug()
2044 		print_circular_bug_entry(parent, --depth);  in print_circular_bug()
2328 static void print_lock_class_header(struct lock_class *class, int depth)  in print_lock_class_header()  argument
2332 	printk("%*s->", depth, "");  in print_lock_class_header()
2341 			int len = depth;  in print_lock_class_header()
2343 			len += printk("%*s   %s", depth, "", usage_str[bit]);  in print_lock_class_header()
2348 	printk("%*s }\n", depth, "");  in print_lock_class_header()
2351 		depth, "", class->key, class->key);  in print_lock_class_header()
2411 	int depth;  in print_shortest_lock_dependencies()  local
2414 	depth = get_lock_depth(leaf);  in print_shortest_lock_dependencies()
2417 		print_lock_class_header(entry->class, depth);  in print_shortest_lock_dependencies()
2418 		printk("%*s ... acquired at:\n", depth, "");  in print_shortest_lock_dependencies()
2422 		if (depth == 0 && (entry != root)) {  in print_shortest_lock_dependencies()
2428 		depth--;  in print_shortest_lock_dependencies()
2429 	} while (entry && (depth >= 0));  in print_shortest_lock_dependencies()
2458 	int depth;  in print_shortest_lock_dependencies_backwards()  local
2461 	depth = get_lock_depth(leaf);  in print_shortest_lock_dependencies_backwards()
2464 		print_lock_class_header(entry->class, depth);  in print_shortest_lock_dependencies_backwards()
2466 			printk("%*s ... acquired at:\n", depth, "");  in print_shortest_lock_dependencies_backwards()
2477 		if (depth == 0 && (entry != root)) {  in print_shortest_lock_dependencies_backwards()
2483 		depth--;  in print_shortest_lock_dependencies_backwards()
2484 	} while (entry && (depth >= 0));  in print_shortest_lock_dependencies_backwards()
3193 	int depth = curr->lockdep_depth;  in check_prevs_add()  local
3201 	if (!depth)  in check_prevs_add()
3207 	if (curr->held_locks[depth].irq_context !=  in check_prevs_add()
3208 			curr->held_locks[depth-1].irq_context)  in check_prevs_add()
3212 		u16 distance = curr->lockdep_depth - depth + 1;  in check_prevs_add()
3213 		hlock = curr->held_locks + depth - 1;  in check_prevs_add()
3230 		depth--;  in check_prevs_add()
3234 		if (!depth)  in check_prevs_add()
3239 		if (curr->held_locks[depth].irq_context !=  in check_prevs_add()
3240 				curr->held_locks[depth-1].irq_context)  in check_prevs_add()
3536 	int depth = curr->lockdep_depth;  in print_chain_keys_held_locks()  local
3539 	printk("depth: %u (irq_context %u)\n", depth - i + 1,  in print_chain_keys_held_locks()
3541 	for (; i < depth; i++) {  in print_chain_keys_held_locks()
3558 	printk("depth: %u\n", chain->depth);  in print_chain_keys_chain()
3559 	for (i = 0; i < chain->depth; i++) {  in print_chain_keys_chain()
3606 	if (DEBUG_LOCKS_WARN_ON(chain->depth != curr->lockdep_depth - (i - 1))) {  in check_no_collision()
3611 	for (j = 0; j < chain->depth - 1; j++, i++) {  in check_no_collision()
3685 	chain->depth = curr->lockdep_depth + 1 - i;  in add_chain_cache()
3691 	j = alloc_chain_hlocks(chain->depth);  in add_chain_cache()
3702 	for (j = 0; j < chain->depth - 1; j++, i++) {  in add_chain_cache()
3993 	int depth;  in print_irq_inversion_bug()  local
4016 	depth = get_lock_depth(other);  in print_irq_inversion_bug()
4018 		if (depth == 0 && (entry != root)) {  in print_irq_inversion_bug()
4024 		depth--;  in print_irq_inversion_bug()
4025 	} while (entry && entry != root && (depth >= 0));  in print_irq_inversion_bug()
4570 	unsigned int depth = curr->lockdep_depth;  in separate_irq_context()  local
4575 	if (depth) {  in separate_irq_context()
4578 		prev_hlock = curr->held_locks + depth-1;  in separate_irq_context()
4732 	int depth;  in check_wait_context()  local
4743 	for (depth = curr->lockdep_depth - 1; depth >= 0; depth--) {  in check_wait_context()
4744 		struct held_lock *prev = curr->held_locks + depth;  in check_wait_context()
4748 	depth++;  in check_wait_context()
4752 	for (; depth < curr->lockdep_depth; depth++) {  in check_wait_context()
4753 		struct held_lock *prev = curr->held_locks + depth;  in check_wait_context()
4917 	unsigned int depth;  in __lock_acquire()  local
4954 	depth = curr->lockdep_depth;  in __lock_acquire()
4958 	if (DEBUG_LOCKS_WARN_ON(depth >= MAX_LOCK_DEPTH))  in __lock_acquire()
4963 	if (depth) { /* we're holding locks */  in __lock_acquire()
4964 		hlock = curr->held_locks + depth - 1;  in __lock_acquire()
4982 	hlock = curr->held_locks + depth;  in __lock_acquire()
5029 	if (!depth) {  in __lock_acquire()
5051 		WARN_ON_ONCE(depth && !hlock_class(hlock - 1)->key);  in __lock_acquire()
5150 					unsigned int depth, int *idx)  in find_held_lock()  argument
5155 	i = depth - 1;  in find_held_lock()
5183 static int reacquire_held_locks(struct task_struct *curr, unsigned int depth,  in reacquire_held_locks()  argument
5192 	for (hlock = curr->held_locks + idx; idx < depth; idx++, hlock++) {  in reacquire_held_locks()
5221 	unsigned int depth, merged = 0;  in __lock_set_class()  local
5229 	depth = curr->lockdep_depth;  in __lock_set_class()
5234 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_set_class()
5237 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_set_class()
5253 	if (reacquire_held_locks(curr, depth, i, &merged))  in __lock_set_class()
5260 	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - merged))  in __lock_set_class()
5268 	unsigned int depth, merged = 0;  in __lock_downgrade()  local
5275 	depth = curr->lockdep_depth;  in __lock_downgrade()
5280 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_downgrade()
5283 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_downgrade()
5296 	if (reacquire_held_locks(curr, depth, i, &merged))  in __lock_downgrade()
5307 	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth))  in __lock_downgrade()
5322 	unsigned int depth, merged = 1;  in __lock_release()  local
5329 	depth = curr->lockdep_depth;  in __lock_release()
5334 	if (depth <= 0) {  in __lock_release()
5343 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_release()
5379 	if (i == depth-1)  in __lock_release()
5382 	if (reacquire_held_locks(curr, depth, i + 1, &merged))  in __lock_release()
5390 	DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - merged);  in __lock_release()
5808 	unsigned int depth;  in __lock_contended()  local
5811 	depth = curr->lockdep_depth;  in __lock_contended()
5816 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_contended()
5819 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_contended()
5849 	unsigned int depth;  in __lock_acquired()  local
5853 	depth = curr->lockdep_depth;  in __lock_acquired()
5858 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_acquired()
5861 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_acquired()
5958 	for (i = chain->base; i < chain->base + chain->depth; i++) {  in remove_class_from_lock_chain()
5971 	free_chain_hlocks(chain->base, chain->depth);  in remove_class_from_lock_chain()