driver core: make struct class.dev_uevent() take a const *

The dev_uevent() in struct class should not be modifying the device that
is passed into it, so mark it as a const * and propagate the function
signature changes out into all relevant subsystems that use this
callback.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Russ Weight <russell.h.weight@intel.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Keith Busch <kbusch@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Raed Salem <raeds@nvidia.com>
Cc: Chen Zhongjin <chenzhongjin@huawei.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Avihai Horon <avihaih@nvidia.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jakob Koschel <jakobkoschel@gmail.com>
Cc: Antoine Tenart <atenart@kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Wang Yufen <wangyufen@huawei.com>
Cc: linux-block@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: linux-nvme@lists.infradead.org
Cc: linux-pm@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20221123122523.1332370-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 5 insertions, 5 deletions

diff --git a/drivers/power/supply/power_supply.h b/drivers/power/supply/power_supply.h
index c310d4f36c10..645eee4d6b6a 100644
--- a/drivers/power/supply/power_supply.h
+++ b/drivers/power/supply/power_supply.h
@@ -16,7 +16,7 @@ struct power_supply;
 #ifdef CONFIG_SYSFS
 
 extern void power_supply_init_attrs(struct device_type *dev_type);
-extern int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env);
+extern int power_supply_uevent(const struct device *dev, struct kobj_uevent_env *env);
 
 #else
 
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index 5369abaceb5c..6ca7d3985a40 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -427,7 +427,7 @@ void power_supply_init_attrs(struct device_type *dev_type)
 	}
 }
 
-static int add_prop_uevent(struct device *dev, struct kobj_uevent_env *env,
+static int add_prop_uevent(const struct device *dev, struct kobj_uevent_env *env,
 			   enum power_supply_property prop, char *prop_buf)
 {
 	int ret = 0;
@@ -438,7 +438,7 @@ static int add_prop_uevent(struct device *dev, struct kobj_uevent_env *env,
 	pwr_attr = &power_supply_attrs[prop];
 	dev_attr = &pwr_attr->dev_attr;
 
-	ret = power_supply_show_property(dev, dev_attr, prop_buf);
+	ret = power_supply_show_property((struct device *)dev, dev_attr, prop_buf);
 	if (ret == -ENODEV || ret == -ENODATA) {
 		/*
 		 * When a battery is absent, we expect -ENODEV. Don't abort;
@@ -458,9 +458,9 @@ static int add_prop_uevent(struct device *dev, struct kobj_uevent_env *env,
 			      pwr_attr->prop_name, prop_buf);
 }
 
-int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env)
+int power_supply_uevent(const struct device *dev, struct kobj_uevent_env *env)
 {
-	struct power_supply *psy = dev_get_drvdata(dev);
+	const struct power_supply *psy = dev_get_drvdata(dev);
 	int ret = 0, j;
 	char *prop_buf;