From: Greg Kroah-Hartman Date: Mon, 13 Mar 2023 18:29:18 +0000 (+0100) Subject: USB: mark all struct bus_type as const X-Git-Tag: v6.6.17~5001^2~56 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9d11b13402d1b80f7f3ca5061d75f15cf8002555;p=platform%2Fkernel%2Flinux-rpi.git 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 Cc: Evan Green Cc: Alan Stern Cc: linux-usb@vger.kernel.org Acked-by: Heikki Krogerus Link: https://lore.kernel.org/r/20230313182918.1312597-36-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c index a98b210..8305a5d 100644 --- a/drivers/usb/common/ulpi.c +++ b/drivers/usb/common/ulpi.c @@ -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, diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index a0e076c..f58a029 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -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, diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 0eac7d4..cd434af 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -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; diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index df930b04..d919f07 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -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, diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index 9e38142..3eb8dc3 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -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, diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c index 098f0ef..fe5b9a2 100644 --- a/drivers/usb/typec/bus.c +++ b/drivers/usb/typec/bus.c @@ -431,7 +431,7 @@ static void typec_remove(struct device *dev) adev->ops = NULL; } -struct bus_type typec_bus = { +const struct bus_type typec_bus = { .name = "typec", .dev_groups = typec_groups, .match = typec_match, diff --git a/drivers/usb/typec/bus.h b/drivers/usb/typec/bus.h index c891688..643b8c8 100644 --- a/drivers/usb/typec/bus.h +++ b/drivers/usb/typec/bus.h @@ -28,7 +28,7 @@ struct altmode { #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) diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index f7bfedb..7eeb5f9 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -378,7 +378,7 @@ void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port, 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,