From 7e760e148a2caa4873b7aeddbeab49b52b74b1ac Mon Sep 17 00:00:00 2001
From: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Sun, 19 Jan 2003 11:03:07 +0000
Subject: Originally when DEVFS was added, a global variable "devfs_present"
 was used to control code which were conditional on DEVFS' precense since this
 avoided the need for large-scale source pollution with #include "opt_geom.h"

Now that we approach making DEVFS standard, replace these tests
with an #ifdef to facilitate mechanical removal once DEVFS becomes
non-optional.

No functional change by this commit.
---
 sys/kern/init_main.c    | 30 +++++++++++++++---------------
 sys/kern/kern_conf.c    |  7 ++++---
 sys/kern/kern_descrip.c | 12 +++++++-----
 sys/kern/tty_tty.c      |  7 +------
 4 files changed, 27 insertions(+), 29 deletions(-)

(limited to 'sys/kern')

diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index 354536fd6a32..74424ccd41b2 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -554,21 +554,21 @@ start_init(void *dummy)
 	mac_create_root_mount(td->td_ucred, TAILQ_FIRST(&mountlist));
 #endif
 
-	if (devfs_present) {
-		/*
-		 * For disk based systems, we probably cannot do this yet
-		 * since the fs will be read-only.  But a NFS root
-		 * might be ok.  It is worth a shot.
-		 */
-		error = kern_mkdir(td, "/dev", UIO_SYSSPACE, 0700);
-		if (error == EEXIST)
-			error = 0;
-		if (error == 0)
-			error = kernel_vmount(0, "fstype", "devfs",
-			    "fspath", "/dev", NULL);
-		if (error != 0)
-			init_does_devfs = 1;
-	}
+#ifndef NODEVFS
+	/*
+	 * For disk based systems, we probably cannot do this yet
+	 * since the fs will be read-only.  But a NFS root
+	 * might be ok.  It is worth a shot.
+	 */
+	error = kern_mkdir(td, "/dev", UIO_SYSSPACE, 0700);
+	if (error == EEXIST)
+		error = 0;
+	if (error == 0)
+		error = kernel_vmount(0, "fstype", "devfs",
+		    "fspath", "/dev", NULL);
+	if (error != 0)
+		init_does_devfs = 1;
+#endif
 
 	/*
 	 * Need just enough stack to hold the faked-up "execve()" arguments.
diff --git a/sys/kern/kern_conf.c b/sys/kern/kern_conf.c
index 6b04b45d6323..0a98a343f6fa 100644
--- a/sys/kern/kern_conf.c
+++ b/sys/kern/kern_conf.c
@@ -62,7 +62,6 @@ static LIST_HEAD(, cdev) dev_free;
 
 devfs_create_t *devfs_create_hook;
 devfs_destroy_t *devfs_destroy_hook;
-int devfs_present;
 
 static int ready_for_devs;
 
@@ -81,9 +80,11 @@ devsw(dev_t dev)
 	disk_dev_synth(dev);
 	if (dev->si_devsw)
 		return (dev->si_devsw);
-	if (devfs_present)
-		return (NULL);
+#ifndef NODEVFS
+	return (NULL);
+#else
         return(cdevsw[major(dev)]);
+#endif
 }
 
 /*
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c
index cf802ab28611..835ec39e9642 100644
--- a/sys/kern/kern_descrip.c
+++ b/sys/kern/kern_descrip.c
@@ -2152,13 +2152,15 @@ fildesc_drvinit(void *unused)
 	make_dev_alias(dev, "stdout");
 	dev = make_dev(&fildesc_cdevsw, 2, UID_ROOT, GID_WHEEL, 0666, "fd/2");
 	make_dev_alias(dev, "stderr");
-	if (!devfs_present) {
-		int fd;
+#ifdef NODEVFS
+	{
+	int fd;
 
-		for (fd = 3; fd < NUMFDESC; fd++)
-			make_dev(&fildesc_cdevsw, fd, UID_ROOT, GID_WHEEL,
-			    0666, "fd/%d", fd);
+	for (fd = 3; fd < NUMFDESC; fd++)
+		make_dev(&fildesc_cdevsw, fd, UID_ROOT, GID_WHEEL,
+		    0666, "fd/%d", fd);
 	}
+#endif
 }
 
 static fo_rdwr_t	badfo_readwrite;
diff --git a/sys/kern/tty_tty.c b/sys/kern/tty_tty.c
index 3a5524e3bffb..d962c1884b23 100644
--- a/sys/kern/tty_tty.c
+++ b/sys/kern/tty_tty.c
@@ -361,12 +361,7 @@ ctty_drvinit(unused)
 	void *unused;
 {
 
-	if (devfs_present) {
-		EVENTHANDLER_REGISTER(dev_clone, ctty_clone, 0, 1000);
-		ctty = make_dev(&ctty_cdevsw, 0, 0, 0, 0666, "ctty");
-	} else {
-		make_dev(&ctty_cdevsw, 0, 0, 0, 0666, "tty");
-	}
+	make_dev(&ctty_cdevsw, 0, 0, 0, 0666, "tty");
 }
 
 SYSINIT(cttydev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,ctty_drvinit,NULL)
-- 
cgit v1.3