diff --git a/arch/cris/arch-v10/kernel/debugport.c b/arch/cris/arch-v10/kernel/debugport.c
index f3a85b77c17e1c5b68596cf47d6e77587bfaa1bd..dde813e16294ddedf7b1a25264a3f2001c0c8834 100644
--- a/arch/cris/arch-v10/kernel/debugport.c
+++ b/arch/cris/arch-v10/kernel/debugport.c
@@ -541,7 +541,7 @@ init_dummy_console(void)
dummy_driver.init_termios = tty_std_termios;
dummy_driver.init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
- dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
dummy_driver.open = dummy_open;
dummy_driver.close = dummy_close;
diff --git a/arch/cris/arch-v32/kernel/debugport.c b/arch/cris/arch-v32/kernel/debugport.c
index ffc1ebf2dfee30b4a3b4ceb039236e4fea58d079..3dc587e6201aee865c762fa71a1807f5dffcd3d3 100644
--- a/arch/cris/arch-v32/kernel/debugport.c
+++ b/arch/cris/arch-v32/kernel/debugport.c
@@ -353,7 +353,7 @@ init_dummy_console(void)
dummy_driver.init_termios = tty_std_termios;
dummy_driver.init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
- dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
dummy_driver.open = dummy_open;
dummy_driver.close = dummy_close;
diff --git a/arch/ppc/4xx_io/serial_sicc.c b/arch/ppc/4xx_io/serial_sicc.c
index 98b25fa0049a2cbf561bee7400046f23b7976c1a..1e113d0f59b8e3cbfa760f1aec1734c4b530c313 100644
--- a/arch/ppc/4xx_io/serial_sicc.c
+++ b/arch/ppc/4xx_io/serial_sicc.c
@@ -1758,7 +1758,7 @@ int __init siccuart_init(void)
siccnormal_driver->subtype = SERIAL_TYPE_NORMAL;
siccnormal_driver->init_termios = tty_std_termios;
siccnormal_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- siccnormal_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ siccnormal_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(siccnormal_driver, &sicc_ops);
if (tty_register_driver(siccnormal_driver))
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 2db55d1f04038a3ccd9fa09205780e13e4bce2b7..8619542766cb28cfdda56efc600c97bbe7afe4e8 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -678,7 +678,7 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize)
ip2_tty_driver->subtype = SERIAL_TYPE_NORMAL;
ip2_tty_driver->init_termios = tty_std_termios;
ip2_tty_driver->init_termios.c_cflag = B9600|CS8|CREAD|HUPCL|CLOCAL;
- ip2_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ ip2_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(ip2_tty_driver, &ip2_ops);
ip2trace (ITRC_NO_PORT, ITRC_INIT, 3, 0 );
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index d3a5092402c26c9823072ad69b25298ac44b87c1..f373d0155a77bf1d81a990ec3f556c051f079499 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -368,7 +368,7 @@ static void __init unix98_pty_init(void)
ptm_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
ptm_driver->init_termios.c_lflag = 0;
ptm_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
- TTY_DRIVER_NO_DEVFS | TTY_DRIVER_DEVPTS_MEM;
+ TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
ptm_driver->other = pts_driver;
tty_set_operations(ptm_driver, &pty_ops);
ptm_driver->ioctl = pty_unix98_ioctl;
@@ -383,7 +383,7 @@ static void __init unix98_pty_init(void)
pts_driver->init_termios = tty_std_termios;
pts_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
pts_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
- TTY_DRIVER_NO_DEVFS | TTY_DRIVER_DEVPTS_MEM;
+ TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
pts_driver->other = ptm_driver;
tty_set_operations(pts_driver, &pty_ops);
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index ed511ec9b578b0e8807215f4116a2013ba0e4897..0ac131881322c96920b049c45e8aa64d5fbdb635 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -2426,7 +2426,7 @@ static int __init rp_init(void)
*/
rocket_driver->owner = THIS_MODULE;
- rocket_driver->flags = TTY_DRIVER_NO_DEVFS;
+ rocket_driver->flags = TTY_DRIVER_DYNAMIC_DEV;
rocket_driver->name = "ttyR";
rocket_driver->driver_name = "Comtrol RocketPort";
rocket_driver->major = TTY_ROCKET_MAJOR;
@@ -2437,7 +2437,7 @@ static int __init rp_init(void)
rocket_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
#ifdef ROCKET_SOFT_FLOW
- rocket_driver->flags |= TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ rocket_driver->flags |= TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
#endif
tty_set_operations(rocket_driver, &rocket_ops);
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index ebe1158e6c6ecfc950983973bb61408eed0ce662..6c79ff3030fac538bbd504f1b5177d1e8115210f 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -2963,8 +2963,8 @@ static struct class *tty_class;
* Returns a pointer to the class device (or ERR_PTR(-EFOO) on error).
*
* This call is required to be made to register an individual tty device if
- * the tty driver's flags have the TTY_DRIVER_NO_DEVFS bit set. If that
- * bit is not set, this function should not be called.
+ * the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set. If that
+ * bit is not set, this function should not be called by a tty driver.
*/
struct class_device *tty_register_device(struct tty_driver *driver,
unsigned index, struct device *device)
@@ -3117,7 +3117,7 @@ int tty_register_driver(struct tty_driver *driver)
list_add(&driver->tty_drivers, &tty_drivers);
- if ( !(driver->flags & TTY_DRIVER_NO_DEVFS) ) {
+ if ( !(driver->flags & TTY_DRIVER_DYNAMIC_DEV) ) {
for(i = 0; i < driver->num; i++)
tty_register_device(driver, i, NULL);
}
@@ -3160,7 +3160,7 @@ int tty_unregister_driver(struct tty_driver *driver)
driver->termios_locked[i] = NULL;
kfree(tp);
}
- if (!(driver->flags & TTY_DRIVER_NO_DEVFS))
+ if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV))
tty_unregister_device(driver, i);
}
p = driver->ttys;
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 9f8628bbdf569833a9ab1199ba6cf014913127fe..bd2e4267528e58aadbcb4f770f75b4cccbc72ba0 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -691,7 +691,7 @@ void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
tty->major = GIG_MAJOR,
tty->type = TTY_DRIVER_TYPE_SERIAL,
tty->subtype = SERIAL_TYPE_NORMAL,
- tty->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS,
+ tty->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty->driver_name = procname;
tty->name = devname;
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index e7f0f15c73532a300a12203c00abffe83ab36ce8..77579f82aede6e2df287befa2668ba14e27cd7c2 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1896,7 +1896,7 @@ isdn_tty_modem_init(void)
m->tty_modem->subtype = SERIAL_TYPE_NORMAL;
m->tty_modem->init_termios = tty_std_termios;
m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- m->tty_modem->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ m->tty_modem->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
m->tty_modem->driver_name = "isdn_tty";
tty_set_operations(m->tty_modem, &modem_ops);
retval = tty_register_driver(m->tty_modem);
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 43c8c9f5f301304dd440ef84d0e359634daa6d31..7d26a3e4cb80797f10256e5de65f389f619cd960 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -1792,7 +1792,7 @@ tty3270_init(void)
driver->type = TTY_DRIVER_TYPE_SYSTEM;
driver->subtype = SYSTEM_TYPE_TTY;
driver->init_termios = tty_std_termios;
- driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_NO_DEVFS;
+ driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(driver, &tty3270_ops);
ret = tty_register_driver(driver);
if (ret) {
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 89700141f87e0d41b462ce6881a9f0a775d98549..2364c39499812ed2507b0150a942e2fa1dea88d3 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -4884,7 +4884,7 @@ rs_init(void)
driver->init_termios = tty_std_termios;
driver->init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
- driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
driver->termios = serial_termios;
driver->termios_locked = serial_termios_locked;
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 84d70d85559853e30e75c9b34a16466917f0d6cd..7dc1e67b6851b2e0ade005e73be8aea60a7df782 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -2160,7 +2160,7 @@ int uart_register_driver(struct uart_driver *drv)
normal->subtype = SERIAL_TYPE_NORMAL;
normal->init_termios = tty_std_termios;
normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- normal->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ normal->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
normal->driver_state = drv;
tty_set_operations(normal, &uart_ops);
diff --git a/drivers/tc/zs.c b/drivers/tc/zs.c
index 582d926cd000b236a1e9caa089a9a717ed932a13..7f27b356eaf723450d3598db9d62a60a5ab3a441 100644
--- a/drivers/tc/zs.c
+++ b/drivers/tc/zs.c
@@ -1753,7 +1753,7 @@ int __init zs_init(void)
serial_driver->init_termios = tty_std_termios;
serial_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(serial_driver, &serial_ops);
if (tty_register_driver(serial_driver))
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index a0b9eddd98e4976c1b3977ee608cd6b726a8ce00..3670d77e912ca4a068a3dc46e93ae8696aeca242 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1149,7 +1149,7 @@ static int __init acm_init(void)
acm_tty_driver->minor_start = 0,
acm_tty_driver->type = TTY_DRIVER_TYPE_SERIAL,
acm_tty_driver->subtype = SERIAL_TYPE_NORMAL,
- acm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS,
+ acm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
acm_tty_driver->init_termios = tty_std_termios;
acm_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(acm_tty_driver, &acm_ops);
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index 2c8e5c10eb9ffcc9a10f53913ad194ab3cda9b2c..416acac879df5d3b96d43d99bfe984a3bb9081bd 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -592,7 +592,7 @@ static int __init gs_module_init(void)
gs_tty_driver->minor_start = GS_MINOR_START;
gs_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
gs_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- gs_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ gs_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
gs_tty_driver->init_termios = tty_std_termios;
gs_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(gs_tty_driver, &gs_tty_ops);
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index db7f54b0d85612ba6bce79e44354e01f7c7f074a..f466f89eeb6d542353652fe0f9d1a77f631f9fe6 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1064,7 +1064,7 @@ static int __init usb_serial_init(void)
usb_serial_tty_driver->minor_start = 0;
usb_serial_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
usb_serial_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- usb_serial_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ usb_serial_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
usb_serial_tty_driver->init_termios = tty_std_termios;
usb_serial_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(usb_serial_tty_driver, &serial_ops);
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 0bd31f0830f96f9b58d9f5438d69537c70781b39..58c961c9e1707027fe8989bfa821c78121fdb183 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -241,8 +241,15 @@ void tty_set_operations(struct tty_driver *driver, struct tty_operations *op);
* is also a promise, if the above case is true, not to signal
* overruns, either.)
*
- * TTY_DRIVER_NO_DEVFS --- if set, do not create devfs entries. This
- * is only used by tty_register_driver().
+ * TTY_DRIVER_DYNAMIC_DEV --- if set, the individual tty devices need
+ * to be registered with a call to tty_register_driver() when the
+ * device is found in the system and unregistered with a call to
+ * tty_unregister_device() so the devices will be show up
+ * properly in sysfs. If not set, driver->num entries will be
+ * created by the tty core in sysfs when tty_register_driver() is
+ * called. This is to be used by drivers that have tty devices
+ * that can appear and disappear while the main tty driver is
+ * registered with the tty core.
*
* TTY_DRIVER_DEVPTS_MEM -- don't use the standard arrays, instead
* use dynamic memory keyed through the devpts filesystem. This
@@ -251,7 +258,7 @@ void tty_set_operations(struct tty_driver *driver, struct tty_operations *op);
#define TTY_DRIVER_INSTALLED 0x0001
#define TTY_DRIVER_RESET_TERMIOS 0x0002
#define TTY_DRIVER_REAL_RAW 0x0004
-#define TTY_DRIVER_NO_DEVFS 0x0008
+#define TTY_DRIVER_DYNAMIC_DEV 0x0008
#define TTY_DRIVER_DEVPTS_MEM 0x0010
/* tty driver types */
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index afb3c524db3444f64962116233af913d59ca354b..5fdc36678621af43de7226629927f61bb8f58b54 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -1030,7 +1030,7 @@ int rfcomm_init_ttys(void)
rfcomm_tty_driver->minor_start = RFCOMM_TTY_MINOR;
rfcomm_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
rfcomm_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- rfcomm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ rfcomm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
rfcomm_tty_driver->init_termios = tty_std_termios;
rfcomm_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(rfcomm_tty_driver, &rfcomm_ops);