irq_check_mask 241 drivers/staging/kpc2000/kpc2000/cell_probe.c u64 irq_check_mask = BIT_ULL(irq_num); irq_check_mask 243 drivers/staging/kpc2000/kpc2000/cell_probe.c if (interrupt_active & irq_check_mask) { // if it's active (interrupt pending) irq_check_mask 244 drivers/staging/kpc2000/kpc2000/cell_probe.c if (interrupt_mask_inv & irq_check_mask) { // and if it's not masked off