/* SPDX-License-Identifier: GPL-2.0 */#include <linux/atomic.h>#include <linux/debugfs.h>#include <linux/notifier.h> struct notifier_err_inject_action {	unsigned long val;	int error;	const char *name;}; #define NOTIFIER_ERR_INJECT_ACTION(action)	\	.name = #action, .val = (action), struct notifier_err_inject {	struct notifier_block nb;	struct notifier_err_inject_action actions[];	/* The last slot must be terminated with zero sentinel */}; extern struct dentry *notifier_err_inject_dir; extern struct dentry *notifier_err_inject_init(const char *name,		struct dentry *parent, struct notifier_err_inject *err_inject,		int priority);