linux/include/asm-generic/error-injection.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_ERROR_INJECTION_H
#define _ASM_GENERIC_ERROR_INJECTION_H

#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
enum { … };

struct error_injection_entry { … };

struct pt_regs;

#ifdef CONFIG_FUNCTION_ERROR_INJECTION
/*
 * Whitelist generating macro. Specify functions which can be error-injectable
 * using this macro. If you unsure what is required for the error-injectable
 * functions, please read Documentation/fault-injection/fault-injection.rst
 * 'Error Injectable Functions' section.
 */
#define ALLOW_ERROR_INJECTION(fname, _etype) …

void override_function_with_return(struct pt_regs *regs);
#else
#define ALLOW_ERROR_INJECTION …

static inline void override_function_with_return(struct pt_regs *regs) { }
#endif
#endif

#endif /* _ASM_GENERIC_ERROR_INJECTION_H */