pdevt            3475 drivers/base/core.c int device_match_devt(struct device *dev, const void *pdevt)
pdevt            3477 drivers/base/core.c 	return dev->devt == *(dev_t *)pdevt;
pdevt             170 include/linux/device.h int device_match_devt(struct device *dev, const void *pdevt);