From patchwork Mon Mar 13 18:29:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 662968 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80E84C61DA4 for ; Mon, 13 Mar 2023 18:33:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231455AbjCMSdj (ORCPT ); Mon, 13 Mar 2023 14:33:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34674 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231356AbjCMSc6 (ORCPT ); Mon, 13 Mar 2023 14:32:58 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 65F20856A5; Mon, 13 Mar 2023 11:31:43 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7115E61481; Mon, 13 Mar 2023 18:30:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 835B4C433D2; Mon, 13 Mar 2023 18:30:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678732235; bh=jbSk29LRT47p9ipZ5FjfZEDf0clY16OD8paogIGp0U0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZvbKwuPvAphpBvTFrJRHcAYcuVbgey6nHCGTDYa84OqaX7Ar+MbX7RcZMcXmkavWW u8uKWKqKN7Eb1xruK6sCAbIa8Up3O7z4a4v+i/Z0s6u82Ym+G5jRx3Z+HWw93ZLZWm K5yU2yo5d2pfLqFJL78t5g0yQJ4V4oH9qfqX7pTM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: rafael@kernel.org, Greg Kroah-Hartman , Heikki Krogerus , Johan Hovold , Evan Green , Alan Stern , linux-usb@vger.kernel.org Subject: [PATCH 36/36] USB: mark all struct bus_type as const Date: Mon, 13 Mar 2023 19:29:18 +0100 Message-Id: <20230313182918.1312597-36-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230313182918.1312597-1-gregkh@linuxfoundation.org> References: <20230313182918.1312597-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=4943; i=gregkh@linuxfoundation.org; h=from:subject; bh=jbSk29LRT47p9ipZ5FjfZEDf0clY16OD8paogIGp0U0=; b=owGbwMvMwCRo6H6F97bub03G02pJDCn82bXf337cOuFPbenUyOu8VzZN8jjq9/7D3CkchwI4R dg0j3992xHLwiDIxCArpsjyZRvP0f0VhxS9DG1Pw8xhZQIZwsDFKQATia9hmKfkED3xyrsX215d /Gfo5VIxYelVQW2GBRvKsmVqCjsC21vFMrw+ZqTIugqfAgA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org 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: Heikki Krogerus Cc: Johan Hovold Cc: Evan Green Cc: Alan Stern Cc: linux-usb@vger.kernel.org Signed-off-by: Greg Kroah-Hartman Acked-by: Heikki Krogerus --- drivers/usb/common/ulpi.c | 2 +- drivers/usb/core/driver.c | 2 +- drivers/usb/core/usb.h | 2 +- drivers/usb/gadget/udc/core.c | 4 ++-- drivers/usb/serial/bus.c | 2 +- drivers/usb/typec/bus.c | 2 +- drivers/usb/typec/bus.h | 2 +- include/linux/usb/serial.h | 2 +- 8 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c index a98b2108376a..8305a5dfb910 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 a0e076c6f3a4..f58a0299fb3b 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 0eac7d4285d1..cd434af259c3 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 23b0629a8774..61a9c231deb9 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 9e38142acd38..3eb8dc3a1a8f 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 098f0efaa58d..fe5b9a2e61f5 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 c89168857417..643b8c81786d 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 f7bfedb740f5..7eeb5f9c4f0d 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,