RTL8152_SET_RX_MODE
set_bit(RTL8152_SET_RX_MODE, &tp->flags);
clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
if (test_and_clear_bit(RTL8152_SET_RX_MODE, &tp->flags))
clear_bit(RTL8152_SET_RX_MODE, &tp->flags);