Commit 9d11b134 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

USB: mark all struct bus_type as const 



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: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-36-gregkh@linuxfoundation.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d492cc25

drivers/usb/common/ulpi.c

+1 −1
Original line number Diff line number Diff line
@@ -90,7 +90,7 @@ static void ulpi_remove(struct device *dev) 
		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,

drivers/usb/core/driver.c

+1 −1
Original line number Diff line number Diff line
@@ -2025,7 +2025,7 @@ int usb_disable_usb2_hardware_lpm(struct usb_device *udev) 


#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,

drivers/usb/core/usb.h

+1 −1
Original line number Diff line number Diff line
@@ -140,7 +140,7 @@ static inline int usb_disable_usb2_hardware_lpm(struct usb_device *udev) 


#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;

drivers/usb/gadget/udc/core.c

+2 −2
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ 


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
@@ -1747,7 +1747,7 @@ static int usb_udc_uevent(const struct device *dev, struct kobj_uevent_env *env) 
	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,

drivers/usb/serial/bus.c

+1 −1
Original line number Diff line number Diff line
@@ -144,7 +144,7 @@ static void free_dynids(struct usb_serial_driver *drv) 
	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,