sd_disk_class 550 drivers/scsi/sd.c static struct class sd_disk_class = { sd_disk_class 3347 drivers/scsi/sd.c sdkp->dev.class = &sd_disk_class; sd_disk_class 3642 drivers/scsi/sd.c err = class_register(&sd_disk_class); sd_disk_class 3684 drivers/scsi/sd.c class_unregister(&sd_disk_class); sd_disk_class 3707 drivers/scsi/sd.c class_unregister(&sd_disk_class);