firmware: provide helpers for registering the syfs loader (6bb9cf3a) · Commits · 戴 / test

drivers/base/firmware_class.c

+21 −8

Original line number	Diff line number	Diff line
		@@ -687,6 +687,16 @@ static struct class firmware_class = {
		.dev_release = fw_dev_release,
		};

		static inline int register_sysfs_loader(void)
		{
		return class_register(&firmware_class);
		}

		static inline void unregister_sysfs_loader(void)
		{
		class_unregister(&firmware_class);
		}

		static ssize_t firmware_loading_show(struct device *dev,
		struct device_attribute attr, char buf)
		{
		@@ -1124,6 +1134,15 @@ fw_load_from_user_helper(struct firmware firmware, const char name,

		static inline void kill_pending_fw_fallback_reqs(bool only_kill_custom) { }

		static inline int register_sysfs_loader(void)
		{
		return 0;
		}

		static inline void unregister_sysfs_loader(void)
		{
		}

		#endif /* CONFIG_FW_LOADER_USER_HELPER */

		/* prepare firmware and firmware_buf structs;
		@@ -1842,20 +1861,14 @@ static int __init firmware_class_init(void)
		return ret;

		register_reboot_notifier(&fw_shutdown_nb);
		#ifdef CONFIG_FW_LOADER_USER_HELPER
		return class_register(&firmware_class);
		#else
		return 0;
		#endif
		return register_sysfs_loader();
		}

		static void __exit firmware_class_exit(void)
		{
		unregister_fw_pm_ops();
		unregister_reboot_notifier(&fw_shutdown_nb);
		#ifdef CONFIG_FW_LOADER_USER_HELPER
		class_unregister(&firmware_class);
		#endif
		unregister_sysfs_loader();
		}

		fs_initcall(firmware_class_init);