diff --git a/core/mac/inc/sir_api.h b/core/mac/inc/sir_api.h
index cfd0781bcd4d..7a29c86b0d8b 100644
--- a/core/mac/inc/sir_api.h
+++ b/core/mac/inc/sir_api.h
@@ -4817,10 +4817,6 @@ struct send_extcap_ie {
 	uint8_t session_id;
 };
 
-typedef void (*hw_mode_transition_cb)(uint32_t old_hw_mode_index,
-		uint32_t new_hw_mode_index,
-		uint32_t num_vdev_mac_entries,
-		struct policy_mgr_vdev_mac_map *vdev_mac_map);
 typedef void (*antenna_mode_cb)(uint32_t status, void *context);
 
 /**
diff --git a/core/sme/inc/sme_api.h b/core/sme/inc/sme_api.h
index 2929a47a2122..13cad1d08939 100644
--- a/core/sme/inc/sme_api.h
+++ b/core/sme/inc/sme_api.h
@@ -1427,8 +1427,6 @@ bool sme_is_any_session_in_connected_state(mac_handle_t mac_handle);
 
 QDF_STATUS sme_pdev_set_pcl(struct policy_mgr_pcl_list *msg);
 QDF_STATUS sme_pdev_set_hw_mode(struct policy_mgr_hw_mode msg);
-void sme_register_hw_mode_trans_cb(mac_handle_t mac_handle,
-				   hw_mode_transition_cb callback);
 QDF_STATUS sme_nss_update_request(uint32_t vdev_id,
 				  uint8_t  new_nss,
 				  policy_mgr_nss_update_cback cback,
diff --git a/core/sme/inc/sme_internal.h b/core/sme/inc/sme_internal.h
index 1d1680a85bdb..18ff55ff8630 100644
--- a/core/sme/inc/sme_internal.h
+++ b/core/sme/inc/sme_internal.h
@@ -298,7 +298,6 @@ typedef struct tagSmeStruct {
 	uint8_t miracast_value;
 	struct ps_global_info  ps_global_info;
 	rssi_threshold_breached_cb rssi_threshold_breached_cb;
-	hw_mode_transition_cb sme_hw_mode_trans_cb;
 	/* OCB callbacks */
 	void *ocb_set_config_context;
 	ocb_callback ocb_set_config_callback;
diff --git a/core/sme/src/common/sme_api.c b/core/sme/src/common/sme_api.c
index 4dcfd0860d68..c9b99198919f 100644
--- a/core/sme/src/common/sme_api.c
+++ b/core/sme/src/common/sme_api.c
@@ -13204,24 +13204,6 @@ QDF_STATUS sme_pdev_set_hw_mode(struct policy_mgr_hw_mode msg)
 	return QDF_STATUS_SUCCESS;
 }
 
-/**
- * sme_register_hw_mode_trans_cb() - HW mode transition callback registration
- * @mac_handle: Handle returned by macOpen
- * @callback: HDD callback to be registered
- *
- * Registers the HDD callback with SME. This callback will be invoked when
- * HW mode transition event is received from the FW
- *
- * Return: None
- */
-void sme_register_hw_mode_trans_cb(mac_handle_t mac_handle,
-				   hw_mode_transition_cb callback)
-{
-	struct mac_context *mac = MAC_CONTEXT(mac_handle);
-
-	mac->sme.sme_hw_mode_trans_cb = callback;
-}
-
 /**
  * sme_nss_update_request() - Send beacon templete update to FW with new
  * nss value