13 static void swap_endian(u8 *dst, const u8 *src, u8 bits)  in swap_endian()  argument
15 	if (bits == 32) {  in swap_endian()
17 	} else if (bits == 128) {  in swap_endian()
24 				 u8 cidr, u8 bits)  in copy_and_assign_cidr()  argument
29 	node->bit_at_a ^= (bits / 8U - 1U) % 8U;  in copy_and_assign_cidr()
32 	node->bitlen = bits;  in copy_and_assign_cidr()
33 	memcpy(node->bits, src, bits / 8U);  in copy_and_assign_cidr()
88 		      u8 bits)  in common_bits()  argument
90 	if (bits == 32)  in common_bits()
91 		return 32U - fls(*(const u32 *)node->bits ^ *(const u32 *)key);  in common_bits()
92 	else if (bits == 128)  in common_bits()
94 			*(const u64 *)&node->bits[0] ^ *(const u64 *)&key[0],  in common_bits()
95 			*(const u64 *)&node->bits[8] ^ *(const u64 *)&key[8]);  in common_bits()
100 			   u8 bits)  in prefix_matches()  argument
108 	return common_bits(node, key, bits) >= node->cidr;  in prefix_matches()
111 static struct allowedips_node *find_node(struct allowedips_node *trie, u8 bits,  in find_node()  argument
116 	while (node && prefix_matches(node, key, bits)) {  in find_node()
119 		if (node->cidr == bits)  in find_node()
127 static struct wg_peer *lookup(struct allowedips_node __rcu *root, u8 bits,  in lookup()  argument
135 	swap_endian(ip, be_ip, bits);  in lookup()
139 	node = find_node(rcu_dereference_bh(root), bits, ip);  in lookup()
150 			   u8 cidr, u8 bits, struct allowedips_node **rnode,  in node_placement()  argument
157 	while (node && node->cidr <= cidr && prefix_matches(node, key, bits)) {  in node_placement()
177 	u8 bit = choose(parent, node->bits);  in choose_and_connect_node()
181 static int add(struct allowedips_node __rcu **trie, u8 bits, const u8 *key,  in add()  argument
186 	if (unlikely(cidr > bits || !peer))  in add()
195 		copy_and_assign_cidr(node, key, cidr, bits);  in add()
199 	if (node_placement(*trie, key, cidr, bits, &node, lock)) {  in add()
210 	copy_and_assign_cidr(newnode, key, cidr, bits);  in add()
222 	cidr = min(cidr, common_bits(down, key, bits));  in add()
241 	copy_and_assign_cidr(node, newnode->bits, cidr, bits);  in add()
346 	swap_endian(ip, node->bits, node->bitlen);  in wg_allowedips_read_node()