Simplify cdevsw registration.

The cdevsw_add() function now finds the major number(s) in the
struct cdevsw passed to it.  cdevsw_add_generic() is no longer
needed, cdevsw_add() does the same thing.

cdevsw_add() will print an message if the d_maj field looks bogus.

Remove nblkdev and nchrdev variables.  Most places they were used
bogusly.  Instead check a dev_t for validity by seeing if devsw()
or bdevsw() returns NULL.

Move bdevsw() and devsw() functions to kern/kern_conf.c

Bump __FreeBSD_version to 400006

This commit removes:
        72 bogus makedev() calls
        26 bogus SYSINIT functions

if_xe.c bogusly accessed cdevsw[], author/maintainer please fix.

I4b and vinum not changed.  Patches emailed to authors.  LINT
probably broken until they catch up.

1 files changed, 1 insertions, 6 deletions

diff --git a/sys/i386/isa/cx.c b/sys/i386/isa/cx.c
index 7f5624e..2b02732 100644
--- a/sys/i386/isa/cx.c
+++ b/sys/i386/isa/cx.c
@@ -981,13 +981,8 @@ void cxtimeout (void *a)
 static int cx_devsw_installed;
 static void 	cx_drvinit(void *unused)
 {
-	dev_t dev;
 
-	if( ! cx_devsw_installed ) {
-		dev = makedev(CDEV_MAJOR,0);
-		cdevsw_add(&dev,&cx_cdevsw,NULL);
-		cx_devsw_installed = 1;
-    	}
+	cdevsw_add(&cx_cdevsw);
 }
 
 SYSINIT(cxdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,cx_drvinit,NULL)