diff --git a/include/bluetooth/hci.h b/include/bluetooth/hci.h
index 3a95a21492..4223aea809 100644
--- a/include/bluetooth/hci.h
+++ b/include/bluetooth/hci.h
@@ -20,6 +20,7 @@
 
 #include <toolchain.h>
 #include <stdint.h>
+#include <string.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -40,6 +41,26 @@ typedef struct {
 #define BT_ADDR_ANY    (&(bt_addr_t) {{0, 0, 0, 0, 0, 0} })
 #define BT_ADDR_LE_ANY (&(bt_addr_le_t) { 0, {0, 0, 0, 0, 0, 0} })
 
+static inline int bt_addr_cmp(const bt_addr_t *a, const bt_addr_t *b)
+{
+	return memcmp(a, b, sizeof(*a));
+}
+
+static inline int bt_addr_le_cmp(const bt_addr_le_t *a, const bt_addr_le_t *b)
+{
+	return memcmp(a, b, sizeof(*a));
+}
+
+static inline void bt_addr_copy(bt_addr_t *dst, const bt_addr_t *src)
+{
+	memcpy(dst, src, sizeof(*dst));
+}
+
+static inline void bt_addr_le_copy(bt_addr_le_t *dst, const bt_addr_le_t *src)
+{
+	memcpy(dst, src, sizeof(*dst));
+}
+
 /* HCI Error Codes */
 #define BT_HCI_ERR_UNKNOWN_CONN_ID		0x02
 #define BT_HCI_ERR_AUTHENTICATION_FAIL		0x05
diff --git a/net/bluetooth/hci_core.h b/net/bluetooth/hci_core.h
index 39ad1cbcd4..7b457872bc 100644
--- a/net/bluetooth/hci_core.h
+++ b/net/bluetooth/hci_core.h
@@ -115,26 +115,6 @@ extern struct bt_dev bt_dev;
 extern const struct bt_conn_auth_cb *bt_auth;
 #endif /* CONFIG_BLUETOOTH_SMP || CONFIG_BLUETOOTH_BREDR */
 
-static inline int bt_addr_cmp(const bt_addr_t *a, const bt_addr_t *b)
-{
-	return memcmp(a, b, sizeof(*a));
-}
-
-static inline int bt_addr_le_cmp(const bt_addr_le_t *a, const bt_addr_le_t *b)
-{
-	return memcmp(a, b, sizeof(*a));
-}
-
-static inline void bt_addr_copy(bt_addr_t *dst, const bt_addr_t *src)
-{
-	memcpy(dst, src, sizeof(*dst));
-}
-
-static inline void bt_addr_le_copy(bt_addr_le_t *dst, const bt_addr_le_t *src)
-{
-	memcpy(dst, src, sizeof(*dst));
-}
-
 static inline bool bt_addr_le_is_rpa(const bt_addr_le_t *addr)
 {
 	if (addr->type != BT_ADDR_LE_RANDOM)