560 	int i, depth = READ_ONCE(p->lockdep_depth);  in lockdep_print_held_locks()  local
562 	if (!depth)  in lockdep_print_held_locks()
565 		printk("%d lock%s held by %s/%d:\n", depth,  in lockdep_print_held_locks()
566 		       depth > 1 ? "s" : "", p->comm, task_pid_nr(p));  in lockdep_print_held_locks()
573 	for (i = 0; i < depth; i++) {  in lockdep_print_held_locks()
976 	int depth = 0;  in get_lock_depth()  local
981 		depth++;  in get_lock_depth()
983 	return depth;  in get_lock_depth()
1084 print_circular_bug_entry(struct lock_list *target, int depth)  in print_circular_bug_entry()  argument
1088 	printk("\n-> #%u", depth);  in print_circular_bug_entry()
1151 print_circular_bug_header(struct lock_list *entry, unsigned int depth,  in print_circular_bug_header()  argument
1175 	print_circular_bug_entry(entry, depth);  in print_circular_bug_header()
1194 	int depth;  in print_circular_bug()  local
1202 	depth = get_lock_depth(target);  in print_circular_bug()
1204 	print_circular_bug_header(target, depth, check_src, check_tgt);  in print_circular_bug()
1210 		print_circular_bug_entry(parent, --depth);  in print_circular_bug()
1388 static void print_lock_class_header(struct lock_class *class, int depth)  in print_lock_class_header()  argument
1392 	printk("%*s->", depth, "");  in print_lock_class_header()
1399 			int len = depth;  in print_lock_class_header()
1401 			len += printk("%*s   %s", depth, "", usage_str[bit]);  in print_lock_class_header()
1406 	printk("%*s }\n", depth, "");  in print_lock_class_header()
1409 		depth, "", class->key, class->key);  in print_lock_class_header()
1420 	int depth;  in print_shortest_lock_dependencies()  local
1423 	depth = get_lock_depth(leaf);  in print_shortest_lock_dependencies()
1426 		print_lock_class_header(entry->class, depth);  in print_shortest_lock_dependencies()
1427 		printk("%*s ... acquired at:\n", depth, "");  in print_shortest_lock_dependencies()
1431 		if (depth == 0 && (entry != root)) {  in print_shortest_lock_dependencies()
1437 		depth--;  in print_shortest_lock_dependencies()
1438 	} while (entry && (depth >= 0));  in print_shortest_lock_dependencies()
1941 	int depth = curr->lockdep_depth;  in check_prevs_add()  local
1955 	if (!depth)  in check_prevs_add()
1961 	if (curr->held_locks[depth].irq_context !=  in check_prevs_add()
1962 			curr->held_locks[depth-1].irq_context)  in check_prevs_add()
1966 		int distance = curr->lockdep_depth - depth + 1;  in check_prevs_add()
1967 		hlock = curr->held_locks + depth - 1;  in check_prevs_add()
1988 		depth--;  in check_prevs_add()
1992 		if (!depth)  in check_prevs_add()
1997 		if (curr->held_locks[depth].irq_context !=  in check_prevs_add()
1998 				curr->held_locks[depth-1].irq_context)  in check_prevs_add()
2064 	int depth = curr->lockdep_depth;  in print_chain_keys_held_locks()  local
2067 	printk("depth: %u\n", depth + 1);  in print_chain_keys_held_locks()
2068 	for (i = get_first_held_lock(curr, hlock_next); i < depth; i++) {  in print_chain_keys_held_locks()
2085 	printk("depth: %u\n", chain->depth);  in print_chain_keys_chain()
2086 	for (i = 0; i < chain->depth; i++) {  in print_chain_keys_chain()
2133 	if (DEBUG_LOCKS_WARN_ON(chain->depth != curr->lockdep_depth - (i - 1))) {  in check_no_collision()
2138 	for (j = 0; j < chain->depth - 1; j++, i++) {  in check_no_collision()
2192 	chain->depth = 2;  in add_chain_cache_classes()
2193 	if (likely(nr_chain_hlocks + chain->depth <= MAX_LOCKDEP_CHAIN_HLOCKS)) {  in add_chain_cache_classes()
2195 		nr_chain_hlocks += chain->depth;  in add_chain_cache_classes()
2261 	chain->depth = curr->lockdep_depth + 1 - i;  in add_chain_cache()
2267 	if (likely(nr_chain_hlocks + chain->depth <= MAX_LOCKDEP_CHAIN_HLOCKS)) {  in add_chain_cache()
2269 		for (j = 0; j < chain->depth - 1; j++, i++) {  in add_chain_cache()
2277 		nr_chain_hlocks += chain->depth;  in add_chain_cache()
2573 	int depth;  in print_irq_inversion_bug()  local
2596 	depth = get_lock_depth(other);  in print_irq_inversion_bug()
2598 		if (depth == 0 && (entry != root)) {  in print_irq_inversion_bug()
2604 		depth--;  in print_irq_inversion_bug()
2605 	} while (entry && entry != root && (depth >= 0));  in print_irq_inversion_bug()
3040 	unsigned int depth = curr->lockdep_depth;  in separate_irq_context()  local
3045 	if (depth) {  in separate_irq_context()
3048 		prev_hlock = curr->held_locks + depth-1;  in separate_irq_context()
3274 	unsigned int depth;  in __lock_acquire()  local
3317 	depth = curr->lockdep_depth;  in __lock_acquire()
3321 	if (DEBUG_LOCKS_WARN_ON(depth >= MAX_LOCK_DEPTH))  in __lock_acquire()
3326 	if (depth) {  in __lock_acquire()
3327 		hlock = curr->held_locks + depth - 1;  in __lock_acquire()
3345 	hlock = curr->held_locks + depth;  in __lock_acquire()
3392 	if (!depth) {  in __lock_acquire()
3508 					unsigned int depth, int *idx)  in find_held_lock()  argument
3513 	i = depth - 1;  in find_held_lock()
3541 static int reacquire_held_locks(struct task_struct *curr, unsigned int depth,  in reacquire_held_locks()  argument
3546 	for (hlock = curr->held_locks + idx; idx < depth; idx++, hlock++) {  in reacquire_held_locks()
3567 	unsigned int depth;  in __lock_set_class()  local
3570 	depth = curr->lockdep_depth;  in __lock_set_class()
3575 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_set_class()
3578 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_set_class()
3589 	if (reacquire_held_locks(curr, depth, i))  in __lock_set_class()
3596 	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth))  in __lock_set_class()
3605 	unsigned int depth;  in __lock_downgrade()  local
3608 	depth = curr->lockdep_depth;  in __lock_downgrade()
3613 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_downgrade()
3616 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_downgrade()
3627 	if (reacquire_held_locks(curr, depth, i))  in __lock_downgrade()
3634 	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth))  in __lock_downgrade()
3651 	unsigned int depth;  in __lock_release()  local
3657 	depth = curr->lockdep_depth;  in __lock_release()
3662 	if (DEBUG_LOCKS_WARN_ON(depth <= 0))  in __lock_release()
3669 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_release()
3699 	if (reacquire_held_locks(curr, depth, i + 1))  in __lock_release()
3706 	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - 1))  in __lock_release()
4036 	unsigned int depth;  in __lock_contended()  local
4039 	depth = curr->lockdep_depth;  in __lock_contended()
4044 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_contended()
4047 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_contended()
4077 	unsigned int depth;  in __lock_acquired()  local
4081 	depth = curr->lockdep_depth;  in __lock_acquired()
4086 	if (DEBUG_LOCKS_WARN_ON(!depth))  in __lock_acquired()
4089 	hlock = find_held_lock(curr, lock, depth, &i);  in __lock_acquired()