// SPDX-License-Identifier: GPL-2.0-only#include <linux/fault-inject.h>#include <linux/fault-inject-usercopy.h> static struct {	struct fault_attr attr;} fail_usercopy = {	.attr = FAULT_ATTR_INITIALIZER,}; static int __init setup_fail_usercopy(char *str){	return setup_fault_attr(&fail_usercopy.attr, str);}__setup("fail_usercopy=", setup_fail_usercopy); #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS static int __init fail_usercopy_debugfs(void){	struct dentry *dir; 	dir = fault_create_debugfs_attr("fail_usercopy", NULL,					&fail_usercopy.attr); 	return PTR_ERR_OR_ZERO(dir);} late_initcall(fail_usercopy_debugfs); #endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */ bool should_fail_usercopy(void){	return should_fail(&fail_usercopy.attr, 1);}EXPORT_SYMBOL_GPL(should_fail_usercopy);