Bluetooth: Host: Remove leftover k_poll related code

There's no use of k_poll in the host stack anymore, so remove leftovers
and related definitions.

Signed-off-by: Johan Hedberg <johan.hedberg@silabs.com>

Author: jhedberg

subsys/bluetooth/Kconfig

@@ -154,7 +154,6 @@ config BT_HCI_ACL_FLOW_CONTROL
 	default y if !HAS_BT_CTLR && !BT_STM32_IPM && !BT_ESP32  && !BT_STM32WBA
 	# Enable if building a Controller-only build
 	default y if BT_HCI_RAW
-	select POLL
 	help
 	  Enable support for throttling ACL buffers from the controller
 	  to the host. This is particularly useful when the host and

subsys/bluetooth/host/Kconfig

@@ -40,7 +40,6 @@ config BT_HCI_HOST
 	bool
 	default y
 	depends on !BT_HCI_RAW
-	select POLL
 
 config BT_HCI_TX_STACK_SIZE
 	# NOTE: This value is derived from other symbols and should only be

subsys/bluetooth/host/conn.c

@@ -787,9 +787,6 @@ static int send_buf(struct bt_conn *conn, struct net_buf *buf,
 	return err;
 }
 
-static struct k_poll_signal conn_change =
-		K_POLL_SIGNAL_INITIALIZER(conn_change);
-
 static void conn_destroy(struct bt_conn *conn, void *data)
 {
 	if (conn->state == BT_CONN_CONNECTED ||
@@ -1184,7 +1181,6 @@ void bt_conn_set_state(struct bt_conn *conn, bt_conn_state_t state)
 			}
 			break;
 		}
-		k_poll_signal_raise(&conn_change, 0);
 
 		if (bt_conn_is_iso(conn)) {
 			bt_iso_connected(conn);

subsys/bluetooth/host/hci_core.h

@@ -34,13 +34,6 @@
 /* SCO  settings */
 #define BT_VOICE_CVSD_16BIT     0x0060
 
-/* k_poll event tags */
-enum {
-	BT_EVENT_CMD_TX,
-	BT_EVENT_CONN_TX_QUEUE,
-	BT_EVENT_CONN_FREE_TX,
-};
-
 /* bt_dev flags: the flags defined here represent BT controller state */
 enum {
 	BT_DEV_ENABLE,

tests/bluetooth/host/conn/mocks/kernel.c

@@ -12,7 +12,6 @@
 #include "kernel.h"
 
 DEFINE_FAKE_VALUE_FUNC(bool, k_is_in_isr);
-DEFINE_FAKE_VALUE_FUNC(int, k_poll_signal_raise, struct k_poll_signal *, int);
 DEFINE_FAKE_VALUE_FUNC(int, k_sem_take, struct k_sem *, k_timeout_t);
 DEFINE_FAKE_VALUE_FUNC(unsigned int, k_sem_count_get, struct k_sem *);
 DEFINE_FAKE_VOID_FUNC(k_sem_give, struct k_sem *);

tests/bluetooth/host/conn/mocks/kernel.h

@@ -11,7 +11,6 @@
 /* List of fakes used by this unit tester */
 #define KERNEL_MOCKS_FFF_FAKES_LIST(FAKE)                                                          \
 	FAKE(k_is_in_isr)                                                                          \
-	FAKE(k_poll_signal_raise)                                                                  \
 	FAKE(k_sem_take)                                                                           \
 	FAKE(k_sem_count_get)                                                                      \
 	FAKE(k_sem_give)                                                                           \
@@ -36,7 +35,6 @@
 	FAKE(k_sched_unlock)                                                                       \
 
 DECLARE_FAKE_VALUE_FUNC(bool, k_is_in_isr);
-DECLARE_FAKE_VALUE_FUNC(int, k_poll_signal_raise, struct k_poll_signal *, int);
 DECLARE_FAKE_VALUE_FUNC(int, k_sem_take, struct k_sem *, k_timeout_t);
 DECLARE_FAKE_VALUE_FUNC(unsigned int, k_sem_count_get, struct k_sem *);
 DECLARE_FAKE_VOID_FUNC(k_sem_give, struct k_sem *);