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Make minor, major and makedev inline functions so we gain type checking

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and prevent compile time creation of dev_t's from happening again.
This commit is contained in:
phk 1999-05-09 18:03:48 +00:00
parent 5fd0058fc8
commit e03d163b72
1 changed files with 20 additions and 4 deletions
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24
sys/sys/types.h
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@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)types.h 8.6 (Berkeley) 2/19/95
* $Id: types.h,v 1.28 1999/01/27 19:01:44 dillon Exp $
* $Id: types.h,v 1.29 1999/01/28 00:57:54 dillon Exp $
*/
#ifndef _SYS_TYPES_H_
@ -102,9 +102,25 @@ typedef struct vm_page *vm_page_t;
* change the meanings of bits 0-15 or waste time and space shifting
* bits 16-31 for devices that don't use them.
*/
#define major(x) ((int)(((u_int)(x) >> 8)&0xff)) /* major number */
#define minor(x) ((int)((x)&0xffff00ff)) /* minor number */
#define makedev(x,y) ((dev_t)(((x) << 8) | (y))) /* create dev_t */
static __inline int
minor(dev_t dev)
{
return(dev & 0xffff00ff);
}
static __inline int
major(dev_t dev)
{
return((dev & 0xff00) >> 8);
}
static __inline dev_t
makedev(int x, int y)
{
return ((x << 8) | y);
}
#endif
#include <machine/endian.h>