PURELIFI_BYTE_NUM_ALIGNMENT
if (temp_usb_len % PURELIFI_BYTE_NUM_ALIGNMENT) {
memset(buffer_dst, 0, PURELIFI_BYTE_NUM_ALIGNMENT -
PURELIFI_BYTE_NUM_ALIGNMENT));
buffer_dst += PURELIFI_BYTE_NUM_ALIGNMENT -
PURELIFI_BYTE_NUM_ALIGNMENT);
temp_usb_len += PURELIFI_BYTE_NUM_ALIGNMENT -
(temp_usb_len % PURELIFI_BYTE_NUM_ALIGNMENT);