ble_stack_init() debugging hang when migrating from s110 v7 to v8

Question

i am new at this so please bare with me.
i was using a nfr51822 with s110 version 7 and i now i want to migrate it to s110 version 8.
i have made a few changes according to the migration document but now on debugging it gets stuck at ble_stack_init();
Couldn't find any changes related to the ble_stack_init(); in the migration document. I am putting here the definition of my ble_stack_init(); 
 static void ble_stack_init(void) 
 {
uint32_t err_code; 
 static ble_gap_addr_t addr;
// Initialize the SoftDevice handler module.
SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_30_PPM, false);

// Enable BLE stack 
ble_enable_params_t ble_enable_params;
memset(&ble_enable_params, 0, sizeof(ble_enable_params));
ble_enable_params.gatts_enable_params.service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT;
err_code = sd_ble_enable(&ble_enable_params);
APP_ERROR_CHECK(err_code);
sd_ble_gap_address_get(&addr);
	sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &addr);
// Subscribe for BLE events.
err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
APP_ERROR_CHECK(err_code);

// Register with the SoftDevice handler module for BLE events.
err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch);
APP_ERROR_CHECK(err_code);
 
 } 
 kindly tell regarding any changes i need to make to get it going.