diff --git a/subsys/bluetooth/controller/hci/hci.c b/subsys/bluetooth/controller/hci/hci.c
index d11df05428503a8..92f1456bff4b97e 100644
--- a/subsys/bluetooth/controller/hci/hci.c
+++ b/subsys/bluetooth/controller/hci/hci.c
@@ -3499,7 +3499,6 @@ static void le_set_ext_adv_enable(struct net_buf *buf, struct net_buf **evt)
 	struct bt_hci_cp_le_set_ext_adv_enable *cmd = (void *)buf->data;
 	struct bt_hci_ext_adv_set *s;
 	uint8_t set_num;
-	uint8_t enable;
 	uint8_t status;
 	uint8_t handle;
 
@@ -3522,7 +3521,6 @@ static void le_set_ext_adv_enable(struct net_buf *buf, struct net_buf **evt)
 	}
 
 	s = (void *) cmd->s;
-	enable = cmd->enable;
 	do {
 		status = ll_adv_set_by_hci_handle_get(s->handle, &handle);
 		if (status) {
diff --git a/subsys/bluetooth/controller/ll_sw/ull_scan_aux.c b/subsys/bluetooth/controller/ll_sw/ull_scan_aux.c
index e0dd0c5d0d2a344..057d25a3b53527e 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_scan_aux.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_scan_aux.c
@@ -50,8 +50,10 @@ static inline struct ll_scan_aux_set *aux_acquire(void);
 static inline void aux_release(struct ll_scan_aux_set *aux);
 static inline uint8_t aux_handle_get(struct ll_scan_aux_set *aux);
 static inline struct ll_sync_set *sync_create_get(struct ll_scan_set *scan);
+#if defined(CONFIG_BT_CTLR_SYNC_PERIODIC)
 static inline struct ll_sync_iso_set *
 	sync_iso_create_get(struct ll_sync_set *sync);
+#endif /* CONFIG_BT_CTLR_SYNC_PERIODIC */
 static void done_disabled_cb(void *param);
 static void flush_safe(void *param);
 static void flush(void *param);
@@ -1082,6 +1084,7 @@ static inline struct ll_sync_set *sync_create_get(struct ll_scan_set *scan)
 #endif /* !CONFIG_BT_CTLR_SYNC_PERIODIC */
 }
 
+#if defined(CONFIG_BT_CTLR_SYNC_PERIODIC)
 static inline struct ll_sync_iso_set *
 	sync_iso_create_get(struct ll_sync_set *sync)
 {
@@ -1091,6 +1094,7 @@ static inline struct ll_sync_iso_set *
 	return NULL;
 #endif /* !CONFIG_BT_CTLR_SYNC_ISO */
 }
+#endif /* CONFIG_BT_CTLR_SYNC_PERIODIC */
 
 static void done_disabled_cb(void *param)
 {