POSTED_INTR_SN
return test_and_clear_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
set_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
clear_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
return test_bit(POSTED_INTR_SN, (unsigned long *)&pi_desc->control);
pi_desc->notifications |= BIT(POSTED_INTR_SN);
pi_desc->notifications &= ~BIT(POSTED_INTR_SN);