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As reported by the kernel test robot, 'power_supply_attr_group' is defined
but not used when CONFIG_SYSFS is not set. Sebastian suggested that the
correct fix implemented by this patch, instead of my attempt in commit
ea4367c40c79 ("power: supply: core: move power_supply_attr_group into #ifdef
block"), is to define power_supply_attr_groups in power_supply_sysfs.c and
expose it in the power_supply.h header. For the case where CONFIG_SYSFS=n,
define it as NULL.
Suggested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fixes: ea4367c40c79 ("power: supply: core: move power_supply_attr_group into #ifdef block")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403021518.SUQzk3oA-lkp@intel.com/
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20240303-class_cleanup-power-v2-1-e248b7128519@marliere.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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When building with CONFIG_SYSFS=n, the build error below is triggered:
ld: drivers/power/supply/power_supply_core.o:(.data+0x0): undefined
reference to `power_supply_attr_group'
The problem is that power_supply_attr_group is needed in
power_supply_core.c but defined in power_supply_sysfs.c, which is only
targeted with CONFIG_SYSFS=y. Therefore, move the extern declaration into
the #ifdef block that checks for CONFIG_SYSFS, and define an empty static
const struct otherwise. This is safe because the macro __ATRIBUTE_GROUPS in
power_supply_core.c will expand into an empty attribute_group array.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/all/20240227214916.GA3699076@dev-arch.thelio-3990X/
Fixes: 7b46b60944d7 ("power: supply: core: constify the struct device_type usage")
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build
Link: https://lore.kernel.org/r/20240228-device_cleanup-power-v1-1-52c0321c48e1@marliere.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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When building without CONFIG_SYSFS, there is an error because of a
recent refactoring that failed to update the stub of
power_supply_init_attrs():
drivers/power/supply/power_supply_core.c: In function 'power_supply_class_init':
drivers/power/supply/power_supply_core.c:1630:9: error: too few arguments to function 'power_supply_init_attrs'
1630 | power_supply_init_attrs();
| ^~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/power/supply/power_supply_core.c:25:
drivers/power/supply/power_supply.h:25:20: note: declared here
25 | static inline void power_supply_init_attrs(struct device_type *dev_type) {}
| ^~~~~~~~~~~~~~~~~~~~~~~
Update the stub function to take no parameters like the rest of the
refactoring, which resolves the build error.
Fixes: 7b46b60944d7 ("power: supply: core: constify the struct device_type usage")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Ricardo B. Marliere <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20240227-fix-power_supply_init_attrs-stub-v1-1-43365e68d4b3@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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Since commit aed65af1cc2f ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
power_supply_dev_type variable to be a constant structure as well, placing
it into read-only memory which can not be modified at runtime.
In order to accomplish that, export power_supply_attr_group in
power_supply.h and use it with the macro __ATTRIBUTE_GROUPS when defining
power_supply_dev_type in power_supply_core.c. Therefore the attribute group
is no longer static. Lastly, because power_supply_attr_groups is no longer
dynamically associated to power_supply_dev_type in
power_supply_init_attrs(), make the function receive zero arguments.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20240224-device_cleanup-power-v2-1-465ff94b896c@marliere.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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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>
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Based on 1 normalized pattern(s):
you may use this code as per gpl version 2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 5 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171439.762454146@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This moves all power supply drivers from drivers/power/
to drivers/power/supply/. The intention is a cleaner
source tree, since drivers/power/ also contains frameworks
unrelated to power supply, like adaptive voltage scaling.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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