Now that the driver core can properly handle constant struct bus_type,
move all of the USB subsystem struct bus_type structures as const,
placing them into read-only memory which can not be modified at runtime.
Cc: Johan Hovold <johan@kernel.org>
Cc: Evan Green <evgreen@chromium.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: linux-usb@vger.kernel.org
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-36-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drv->remove(to_ulpi_dev(dev));
}
-static struct bus_type ulpi_bus = {
+static const struct bus_type ulpi_bus = {
.name = "ulpi",
.match = ulpi_match,
.uevent = ulpi_uevent,
#endif /* CONFIG_PM */
-struct bus_type usb_bus_type = {
+const struct bus_type usb_bus_type = {
.name = "usb",
.match = usb_device_match,
.uevent = usb_uevent,
#endif
-extern struct bus_type usb_bus_type;
+extern const struct bus_type usb_bus_type;
extern struct mutex usb_port_peer_mutex;
extern struct device_type usb_device_type;
extern struct device_type usb_if_device_type;
static DEFINE_IDA(gadget_id_numbers);
-static struct bus_type gadget_bus_type;
+static const struct bus_type gadget_bus_type;
/**
* struct usb_udc - describes one usb device controller
return 0;
}
-static struct bus_type gadget_bus_type = {
+static const struct bus_type gadget_bus_type = {
.name = "gadget",
.probe = gadget_bind_driver,
.remove = gadget_unbind_driver,
spin_unlock(&drv->dynids.lock);
}
-struct bus_type usb_serial_bus_type = {
+const struct bus_type usb_serial_bus_type = {
.name = "usb-serial",
.match = usb_serial_device_match,
.probe = usb_serial_device_probe,
adev->ops = NULL;
}
-struct bus_type typec_bus = {
+const struct bus_type typec_bus = {
.name = "typec",
.dev_groups = typec_groups,
.match = typec_match,
#define to_altmode(d) container_of(d, struct altmode, adev)
-extern struct bus_type typec_bus;
+extern const struct bus_type typec_bus;
extern const struct device_type typec_altmode_dev_type;
#define is_typec_altmode(_dev_) (_dev_->type == &typec_altmode_dev_type)
int usb_serial_bus_register(struct usb_serial_driver *device);
void usb_serial_bus_deregister(struct usb_serial_driver *device);
-extern struct bus_type usb_serial_bus_type;
+extern const struct bus_type usb_serial_bus_type;
extern struct tty_driver *usb_serial_tty_driver;
static inline void usb_serial_debug_data(struct device *dev,