Put the device cloning functions for disk-drivers under #ifndef BURN_BRIDGES.

For the floppy driver, use fdcontrol to manipulate density selection.

For the CD drivers, the 'a' and 'c' suffix is without actual effect and
any applications insisting on it can be satisfied with a symlink:
	ln -s /dev/cd0 /dev/cd0a

Ongoing discussion may result in these pieces of code being removed before
the 5-stable branch as opposed to after.

1 files changed, 19 insertions, 3 deletions

diff --git a/sys/isa/fd.c b/sys/isa/fd.c
index 5346144..aed1dac 100644
--- a/sys/isa/fd.c
+++ b/sys/isa/fd.c
@@ -316,9 +316,11 @@ struct fd_data {
 	struct	callout_handle toffhandle;
 	struct	callout_handle tohandle;
 	struct	devstat *device_stats;
-	eventhandler_tag clonetag;
 	dev_t	masterdev;
+#ifndef BURN_BRIDGES
+	eventhandler_tag clonetag;
 	dev_t	clonedevs[NUMDENS - 1];
+#endif
 	device_t dev;
 	fdu_t	fdu;
 };
@@ -386,7 +388,9 @@ static int fdc_detach(device_t dev);
 static void fdc_add_child(device_t, const char *, int);
 static int fdc_attach(device_t);
 static int fdc_print_child(device_t, device_t);
+#ifndef BURN_BRIDGES
 static void fd_clone (void *, char *, int, dev_t *);
+#endif
 static int fd_probe(device_t);
 static int fd_attach(device_t);
 static int fd_detach(device_t);
@@ -1117,6 +1121,7 @@ DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, 0, 0);
 
 #endif /* NCARD > 0 */
 
+#ifndef BURN_BRIDGES
 /*
  * Create a clone device upon request by devfs.
  */
@@ -1170,6 +1175,7 @@ fd_clone(void *arg, char *name, int namelen, dev_t *dev)
 			}
 	}
 }
+#endif
 
 /*
  * Configuration/initialization, per drive.
@@ -1323,14 +1329,20 @@ static int
 fd_attach(device_t dev)
 {
 	struct	fd_data *fd;
-	int i;
 
 	fd = device_get_softc(dev);
+#ifndef BURN_BRIDGES
 	fd->clonetag = EVENTHANDLER_REGISTER(dev_clone, fd_clone, fd, 1000);
+#endif
 	fd->masterdev = make_dev(&fd_cdevsw, fd->fdu << 6,
 				 UID_ROOT, GID_OPERATOR, 0640, "fd%d", fd->fdu);
+#ifndef BURN_BRIDGES
+	{
+	int i;
 	for (i = 0; i < NUMDENS - 1; i++)
 		fd->clonedevs[i] = NODEV;
+	}
+#endif
 	fd->device_stats = devstat_new_entry(device_get_name(dev), 
 			  device_get_unit(dev), 0, DEVSTAT_NO_ORDERED_TAGS,
 			  DEVSTAT_TYPE_FLOPPY | DEVSTAT_TYPE_IF_OTHER,
@@ -1342,16 +1354,20 @@ static int
 fd_detach(device_t dev)
 {
 	struct	fd_data *fd;
-	int i;
 
 	fd = device_get_softc(dev);
 	untimeout(fd_turnoff, fd, fd->toffhandle);
 	devstat_remove_entry(fd->device_stats);
 	destroy_dev(fd->masterdev);
+#ifndef BURN_BRIDGES
+	{
+	int i;
 	for (i = 0; i < NUMDENS - 1; i++)
 		if (fd->clonedevs[i] != NODEV)
 			destroy_dev(fd->clonedevs[i]);
 	EVENTHANDLER_DEREGISTER(dev_clone, fd->clonetag);
+	}
+#endif
 
 	return (0);
 }