// SPDX-License-Identifier: GPL-2.0 #include <linux/types.h> #include <linux/kconfig.h> #include <linux/list.h> #include <linux/slab.h> #include <linux/export.h> #include <linux/security.h> #include <linux/highmem.h> #include <linux/umh.h> #include <linux/sysctl.h> #include "fallback.h" #include "firmware.h" /* * firmware fallback configuration table */ struct firmware_fallback_config fw_fallback_config = { .force_sysfs_fallback = IS_ENABLED(CONFIG_FW_LOADER_USER_HELPER_FALLBACK), .loading_timeout = 60, .old_timeout = 60, }; EXPORT_SYMBOL_NS_GPL(fw_fallback_config, FIRMWARE_LOADER_PRIVATE); #ifdef CONFIG_SYSCTL static struct ctl_table firmware_config_table[] = { { .procname = "force_sysfs_fallback", .data = &fw_fallback_config.force_sysfs_fallback, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_douintvec_minmax, .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, }, { .procname = "ignore_sysfs_fallback", .data = &fw_fallback_config.ignore_sysfs_fallback, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_douintvec_minmax, .extra1 = SYSCTL_ZERO, .extra2 = SYSCTL_ONE, }, { } }; static struct ctl_table_header *firmware_config_sysct_table_header; int register_firmware_config_sysctl(void) { firmware_config_sysct_table_header = register_sysctl("kernel/firmware_config", firmware_config_table); if (!firmware_config_sysct_table_header) return -ENOMEM; return 0; } EXPORT_SYMBOL_NS_GPL(register_firmware_config_sysctl, FIRMWARE_LOADER_PRIVATE); void unregister_firmware_config_sysctl(void) { unregister_sysctl_table(firmware_config_sysct_table_header); firmware_config_sysct_table_header = NULL; } EXPORT_SYMBOL_NS_GPL(unregister_firmware_config_sysctl, FIRMWARE_LOADER_PRIVATE); #endif /* CONFIG_SYSCTL */