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[ Upstream commitd03cfde56f] The module core already guarantees that a module can only be unloaded after all other modules using its symbols have been unloaded. As it's already the responsibility of the drivers using firmware_attributes_class to clean up their devices before unloading, the lifetime of the firmware_attributes_class can be bound to the lifetime of the module. This enables the direct usage of firmware_attributes_class from the drivers, without having to go through the lifecycle functions, leading to simplifications for both the subsystem and its users. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Armin Wolf <W_Armin@gmx.de> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca> Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca> Link: https://lore.kernel.org/r/20250104-firmware-attributes-simplify-v1-2-949f9709e405@weissschuh.net Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Stable-dep-of:5ff1fbb305("platform/x86: think-lmi: Fix class device unregistration") Signed-off-by: Sasha Levin <sashal@kernel.org>
41 lines
982 B
C
41 lines
982 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* Firmware attributes class helper module */
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#include <linux/module.h>
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#include "firmware_attributes_class.h"
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const struct class firmware_attributes_class = {
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.name = "firmware-attributes",
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};
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EXPORT_SYMBOL_GPL(firmware_attributes_class);
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static __init int fw_attributes_class_init(void)
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{
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return class_register(&firmware_attributes_class);
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}
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module_init(fw_attributes_class_init);
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static __exit void fw_attributes_class_exit(void)
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{
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class_unregister(&firmware_attributes_class);
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}
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module_exit(fw_attributes_class_exit);
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int fw_attributes_class_get(const struct class **fw_attr_class)
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{
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*fw_attr_class = &firmware_attributes_class;
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return 0;
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}
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EXPORT_SYMBOL_GPL(fw_attributes_class_get);
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int fw_attributes_class_put(void)
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{
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return 0;
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}
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EXPORT_SYMBOL_GPL(fw_attributes_class_put);
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MODULE_AUTHOR("Mark Pearson <markpearson@lenovo.com>");
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MODULE_DESCRIPTION("Firmware attributes class helper module");
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MODULE_LICENSE("GPL");
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