Removed my devsw access functions [un]register_cdev() and

getmajorbyname() which were a better (sigh) temporary interface to
the going-away devswitches.

Note that SYSINIT()s to initialize the devswitches would be fatal
in syscons.c and pcvt_drv.c (and are bogus elsewhere) because they
get called independently of whether the device is attached; thus
devices that share a major clobber each other's devswitch entries
until the last one wins.

conf.c:
Removed stale #includes and comments.

3 files changed, 21 insertions, 125 deletions

diff --git a/sys/i386/i386/conf.c b/sys/i386/i386/conf.c
index 18f9ed8..2b8a47d 100644
--- a/sys/i386/i386/conf.c
+++ b/sys/i386/i386/conf.c
@@ -42,34 +42,23 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)conf.c	5.8 (Berkeley) 5/12/91
- *	$Id: conf.c,v 1.114 1995/12/13 15:12:18 julian Exp $
+ *	$Id: conf.c,v 1.115 1995/12/14 09:52:37 phk Exp $
  */
 
 #include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/buf.h>
-#include <sys/ioctl.h>
-#include <sys/proc.h>
-#include <sys/vnode.h>
-#include <sys/tty.h>
 #include <sys/conf.h>
-
-#include <vm/vm.h>
-#include <vm/vm_param.h>
-#include <vm/vm_extern.h>
-
+#include <sys/vnode.h>
 
 #define NUMCDEV 96
 #define NUMBDEV 32
 
-struct bdevsw	*bdevsw[NUMBDEV];
+struct bdevsw 	*bdevsw[NUMBDEV];
 int	nblkdev = NUMBDEV;
-struct cdevsw	*cdevsw[NUMCDEV];
+struct cdevsw 	*cdevsw[NUMCDEV];
 int	nchrdev = NUMCDEV;
 
 /*
  * The routines below are total "BULLSHIT" and will be trashed
- * When I have 'proved' the JREMOD changes above..
  */
 
 /*
@@ -180,31 +169,8 @@ chrtoblk(dev)
 	return (makedev(blkmaj, minor(dev)));
 }
 
-int
-getmajorbyname(name)
-	const char *name;
-{
-
-	if (strcmp(name, "sc") == 0)
-		return (12);
-	if (strcmp(name, "vt") == 0)
-		return (12);
-	return (NULL);
-}
-
-
-static struct cdevsw **
-getcdevbyname(char *name)
-{
-	int maj;
-
-	maj = getmajorbyname(name);
-	return (maj < 0 ? NULL : &cdevsw[maj]);
-}
-
 #else	/* NEW_STUFF_JRE *//*===============================================*/
 
-
 /*
  * Routine to convert from character to block device number.
  *
@@ -223,81 +189,4 @@ chrtoblk(dev_t dev)
 	  return(NODEV);
 }
 
-/* Only checks cdevs */
-int
-getmajorbyname(const char *name)
-{
-	struct cdevsw *cd;
-	int maj;
-	char *dname;
-
-	for( maj = 0; maj <nchrdev ; maj++) {
-		if ( dname = cdevsw[maj]->d_name) {
-			if ( strcmp(name, dname) == 0 ) {
-				return maj;
-			}
-		}
-	}
-	return -1; /* XXX */ /* Was 0 */
-}
-
-
-/* utterly pointless with devfs */
-static struct cdevsw **
-getcdevbyname(const char *name)
-{
-	struct cdevsw *cd;
-	int maj;
-	char *dname;
-
-	for( maj = 0; maj <nchrdev ; maj++) {
-		if ( dname = cdevsw[maj]->d_name) {
-			if ( strcmp(name, dname) == 0 ) {
-				return &cdevsw[maj];
-			}
-		}
-	}
-	return NULL;
-}
 #endif /* NEW_STUFF_JRE */
-
-/* Zap these as soon as we find out who calls them  , and "why?"*/
-int
-register_cdev(name, cdp)
-	const char *name;
-	const struct cdevsw *cdp;
-{
-	struct cdevsw **dst_cdp;
-
-	dst_cdp = getcdevbyname(name);
-	if (dst_cdp == NULL)
-		return (ENXIO);
-	if ((*dst_cdp != NULL)
-	   && ((*dst_cdp)->d_open != nxopen)
-	   && ((*dst_cdp)->d_open != NULL))
-		return (EBUSY);
-	*dst_cdp = cdp;
-	return (0);
-}
-
-static struct cdevsw nxcdevsw = {
-	nxopen,		nxclose,	nxread,		nxwrite,
-	nxioctl,	nxstop,		nxreset,	nxdevtotty,
-	nxselect,	nxmmap,		NULL,
-};
-
-int
-unregister_cdev(name, cdp)
-	const char *name;
-	const struct cdevsw *cdp;
-{
-	struct cdevsw **dst_cdp;
-
-	dst_cdp = getcdevbyname(name);
-	if (dst_cdp == NULL)
-		return (ENXIO);
-	if ((*dst_cdp)->d_open != cdp->d_open)
-		return (EBUSY);
-	*dst_cdp = &nxcdevsw;
-	return (0);
-}
diff --git a/sys/i386/isa/pcvt/pcvt_drv.c b/sys/i386/isa/pcvt/pcvt_drv.c
index 6e5529e..bee2269 100644
--- a/sys/i386/isa/pcvt/pcvt_drv.c
+++ b/sys/i386/isa/pcvt/pcvt_drv.c
@@ -115,6 +115,7 @@ static	d_ioctl_t	pcioctl;
 static	d_devtotty_t	pcdevtotty;
 static	d_mmap_t	pcmmap;
 
+#define CDEV_MAJOR 12
 static	struct cdevsw	pcdevsw = {
 	pcopen,		pcclose,	pcread,		pcwrite,
 	pcioctl,	nullstop,	noreset,	pcdevtotty,
@@ -326,7 +327,11 @@ pcattach(struct isa_device *dev)
 		pcvt_is_console? DC_IDLE: DC_BUSY;
 	vt_registerdev(dev, (char *)vga_string(vga_type));
 
-	register_cdev("vt", &pcdevsw);
+	{
+	dev_t dev = makedev(CDEV_MAJOR, 0);
+
+	cdevsw_add(&dev, &pcdevsw, NULL);
+	}
 #endif /* PCVT_FREEBSD > 205 */
 
 #if PCVT_NETBSD > 9
@@ -1107,15 +1112,14 @@ pccnprobe(struct consdev *cp)
 	 * Take control if we are the highest priority enabled display device.
 	 */
 	dvp = find_display();
-	maj = getmajorbyname("vt");
-	if (dvp->id_driver != &vtdriver || maj < 0) {
+	if (dvp != NULL && dvp->id_driver != &vtdriver) {
 		cp->cn_pri = CN_DEAD;
 		return;
 	}
 
 	/* initialize required fields */
 
-	cp->cn_dev = makedev(maj, 0);
+	cp->cn_dev = makedev(CDEV_MAJOR, 0);
 	cp->cn_pri = CN_INTERNAL;
 
 #if !PCVT_NETBSD
diff --git a/sys/i386/isa/syscons.c b/sys/i386/isa/syscons.c
index dc628c7..9dc2e14 100644
--- a/sys/i386/isa/syscons.c
+++ b/sys/i386/isa/syscons.c
@@ -25,7 +25,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *  $Id: syscons.c,v 1.136 1995/12/10 13:39:18 phk Exp $
+ *  $Id: syscons.c,v 1.137 1995/12/10 15:54:55 bde Exp $
  */
 
 #include "sc.h"
@@ -164,6 +164,7 @@ static	d_ioctl_t	scioctl;
 static	d_devtotty_t	scdevtotty;
 static	d_mmap_t	scmmap;
 
+#define CDEV_MAJOR 12
 static	struct cdevsw	scdevsw = {
 	scopen,		scclose,	scread,		scwrite,
 	scioctl,	nullstop,	noreset,	scdevtotty,
@@ -361,7 +362,11 @@ scattach(struct isa_device *dev)
 					DV_CHR, 0, 0, 0600 );
     }
 #endif
-    register_cdev("sc", &scdevsw);
+    {
+    dev_t dev = makedev(CDEV_MAJOR, 0);
+
+    cdevsw_add(&dev, &scdevsw, NULL);
+    }
 
     return 0;
 }
@@ -1181,20 +1186,18 @@ void
 sccnprobe(struct consdev *cp)
 {
     struct isa_device *dvp;
-    int maj;
 
     /*
      * Take control if we are the highest priority enabled display device.
      */
     dvp = find_display();
-    maj = getmajorbyname("sc");
-    if (dvp->id_driver != &scdriver || maj < 0) {
+    if (dvp != NULL && dvp->id_driver != &scdriver) {
 	cp->cn_pri = CN_DEAD;
 	return;
     }
 
     /* initialize required fields */
-    cp->cn_dev = makedev(maj, MAXCONS);
+    cp->cn_dev = makedev(CDEV_MAJOR, MAXCONS);
     cp->cn_pri = CN_INTERNAL;
 }