--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_KDEV_T_H
+#define _LINUX_KDEV_T_H
+
+/*
+Some programs want their definitions of MAJOR and MINOR and MKDEV
+from the kernel sources. These must be the externally visible ones.
+*/
+#define MAJOR(dev) ((dev)>>8)
+#define MINOR(dev) ((dev) & 0xff)
+#define MKDEV(ma,mi) ((ma)<<8 | (mi))
+#endif /* _LINUX_KDEV_T_H */