183 	register struct disk *du;	/* Disk unit to do the IO.	*/  local
276 wdustart(du)  in wdustart()  argument
308 	register struct disk *du;	/* disk unit for IO */  in wdstart()  local
456 	register struct	disk *du;  in wdintr()  local
595 	register struct disk *du;  local
729 	register struct disk *du;  local
846 wdsetctlr(dev, du) dev_t dev; struct disk *du; {  in wdsetctlr()  argument
865 	register struct disk *du;  local
877 	register struct disk *du;  local
1012 	register struct disk *du;  local
1031 	register struct disk *du;	/* disk unit to do the IO */  local