[PATCH] USB: allow usb drivers to disable dynamic ids
This lets drivers, like the usb-serial ones, disable the ability to add
ids from sysfs.
The usb-serial drivers are "odd" in that they are really usb-serial bus
drivers, not usb bus drivers, so the dynamic id logic will have to go
into the usb-serial bus core for those drivers to get that ability.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 1c06110..5e65bc2 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -112,12 +112,26 @@
{
int error = 0;
+ if (usb_drv->no_dynamic_id)
+ goto exit;
+
if (usb_drv->probe != NULL)
error = sysfs_create_file(&usb_drv->driver.kobj,
&driver_attr_new_id.attr);
+exit:
return error;
}
+static void usb_remove_newid_file(struct usb_driver *usb_drv)
+{
+ if (usb_drv->no_dynamic_id)
+ return;
+
+ if (usb_drv->probe != NULL)
+ sysfs_remove_file(&usb_drv->driver.kobj,
+ &driver_attr_new_id.attr);
+}
+
static void usb_free_dynids(struct usb_driver *usb_drv)
{
struct usb_dynid *dynid, *n;
@@ -135,6 +149,10 @@
return 0;
}
+static void usb_remove_newid_file(struct usb_driver *usb_drv)
+{
+}
+
static inline void usb_free_dynids(struct usb_driver *usb_drv)
{
}
@@ -447,6 +465,7 @@
pr_info("%s: deregistering driver %s\n", usbcore_name, driver->name);
usb_lock_all_devices();
+ usb_remove_newid_file(driver);
usb_free_dynids(driver);
driver_unregister(&driver->driver);
usb_unlock_all_devices();
diff --git a/drivers/usb/serial/airprime.c b/drivers/usb/serial/airprime.c
index 1f29d88..2ef9945 100644
--- a/drivers/usb/serial/airprime.c
+++ b/drivers/usb/serial/airprime.c
@@ -28,6 +28,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver airprime_device = {
diff --git a/drivers/usb/serial/anydata.c b/drivers/usb/serial/anydata.c
index 18022a7..7a171e0 100644
--- a/drivers/usb/serial/anydata.c
+++ b/drivers/usb/serial/anydata.c
@@ -32,6 +32,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
static int anydata_open(struct usb_serial_port *port, struct file *filp)
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 84bc0ee..69039bd 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -118,6 +118,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
/* All of the device info needed for the serial converters */
diff --git a/drivers/usb/serial/cp2101.c b/drivers/usb/serial/cp2101.c
index c978700..813bab3 100644
--- a/drivers/usb/serial/cp2101.c
+++ b/drivers/usb/serial/cp2101.c
@@ -72,6 +72,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver cp2101_device = {
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index e581e4a..8c10e40 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -81,6 +81,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver cyberjack_device = {
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index af9290e..af18355 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -112,6 +112,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
struct cypress_private {
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index dc74644..c50cec9 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -498,6 +498,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index 0b0546d..e5e40064 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -110,6 +110,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver empeg_device = {
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 06e04b4..857fe79 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -488,6 +488,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
static char *ftdi_chip_name[] = {
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 35820bd..198a3222 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -227,6 +227,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 53a47c3..c00a440 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -73,6 +73,7 @@
.probe = generic_probe,
.disconnect = usb_serial_disconnect,
.id_table = generic_serial_ids,
+ .no_dynamic_id = 1,
};
#endif
diff --git a/drivers/usb/serial/hp4x.c b/drivers/usb/serial/hp4x.c
index 8eadfb7..e588c3f 100644
--- a/drivers/usb/serial/hp4x.c
+++ b/drivers/usb/serial/hp4x.c
@@ -42,6 +42,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver hp49gp_device = {
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index dc4c498..276bd42 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -247,6 +247,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
/* function prototypes for all of our local functions */
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 832b6d6..8b2e4c7 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -221,6 +221,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index d5d0664..efb568b 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -547,6 +547,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = ipaq_id_table,
+ .no_dynamic_id = 1,
};
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index 7744b81..64e2cda 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -157,6 +157,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = usb_ipw_ids,
+ .no_dynamic_id = 1,
};
static int debug;
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index 19f329e..647431c 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -130,6 +130,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
diff --git a/drivers/usb/serial/keyspan.h b/drivers/usb/serial/keyspan.h
index 5cfc13b..4e6f626 100644
--- a/drivers/usb/serial/keyspan.h
+++ b/drivers/usb/serial/keyspan.h
@@ -525,6 +525,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = keyspan_ids_combined,
+ .no_dynamic_id = 1,
};
/* usb_device_id table for the pre-firmware download keyspan devices */
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index cd4f48b..0d1f152 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -155,6 +155,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
static struct usb_device_id id_table_std [] = {
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index a8951c0..bd68638 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -121,6 +121,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver kl5kusb105d_device = {
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index 9456dd9..4c853af 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -102,6 +102,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index ca5dbad..b0415e7 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -130,6 +130,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver mct_u232_device = {
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index 3caf970..b595bef 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -85,6 +85,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 7716000..4ee657e 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -100,6 +100,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = option_ids,
+ .no_dynamic_id = 1,
};
/* The card has three separate interfaces, wich the serial driver
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 41a45a5..e302a32 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -87,6 +87,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
#define SET_LINE_REQUEST_TYPE 0x21
diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index c22bdc0..f8241c1 100644
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -165,6 +165,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .no_dynamic_id = 1,
};
static __u16 crc10_table[256] = {
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 205dbf7..17a1f09 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -253,6 +253,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = ti_id_table_combined,
+ .no_dynamic_id = 1,
};
static struct usb_serial_driver ti_1port_device = {
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 0c4881d..2ac37b5 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -46,6 +46,7 @@
.name = "usbserial",
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
+ .no_dynamic_id = 1,
};
/* There is no MODULE_DEVICE_TABLE for usbserial.c. Instead
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index a473c1c..2973f55 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -178,6 +178,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
/* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 18c3183..19c6386 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -132,6 +132,7 @@
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table_combined,
+ .no_dynamic_id = 1,
};
/* function prototypes for the Connect Tech WhiteHEAT prerenumeration device */
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 0dd96ef..8d58299 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -561,6 +561,8 @@
* @dynids: used internally to hold the list of dynamically added device
* ids for this driver.
* @driver: the driver model core driver structure.
+ * @no_dynamic_id: if set to 1, the USB core will not allow dynamic ids to be
+ * added to this driver by preventing the sysfs file from being created.
*
* USB drivers must provide a name, probe() and disconnect() methods,
* and an id_table. Other driver fields are optional.
@@ -597,6 +599,7 @@
struct usb_dynids dynids;
struct device_driver driver;
+ unsigned int no_dynamic_id:1;
};
#define to_usb_driver(d) container_of(d, struct usb_driver, driver)