HDA_MAX_CYCLE_OFFSET 439 sound/pci/hda/hda_controller.c if (wallclk_cycles < HDA_MAX_CYCLE_VALUE - HDA_MAX_CYCLE_OFFSET HDA_MAX_CYCLE_OFFSET 440 sound/pci/hda/hda_controller.c && wallclk_cycles > HDA_MAX_CYCLE_OFFSET)