// 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_SYSCTLstatic 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 */