1540adea3SMasami Hiramatsu /* SPDX-License-Identifier: GPL-2.0 */ 2540adea3SMasami Hiramatsu #ifndef _ASM_GENERIC_ERROR_INJECTION_H 3540adea3SMasami Hiramatsu #define _ASM_GENERIC_ERROR_INJECTION_H 4540adea3SMasami Hiramatsu 5540adea3SMasami Hiramatsu #if defined(__KERNEL__) && !defined(__ASSEMBLY__) 6663faf9fSMasami Hiramatsu enum { 7663faf9fSMasami Hiramatsu EI_ETYPE_NONE, /* Dummy value for undefined case */ 8663faf9fSMasami Hiramatsu EI_ETYPE_NULL, /* Return NULL if failure */ 9663faf9fSMasami Hiramatsu EI_ETYPE_ERRNO, /* Return -ERRNO if failure */ 10663faf9fSMasami Hiramatsu EI_ETYPE_ERRNO_NULL, /* Return -ERRNO or NULL if failure */ 11663faf9fSMasami Hiramatsu }; 12663faf9fSMasami Hiramatsu 13663faf9fSMasami Hiramatsu struct error_injection_entry { 14663faf9fSMasami Hiramatsu unsigned long addr; 15663faf9fSMasami Hiramatsu int etype; 16663faf9fSMasami Hiramatsu }; 17663faf9fSMasami Hiramatsu 18540adea3SMasami Hiramatsu #ifdef CONFIG_FUNCTION_ERROR_INJECTION 19540adea3SMasami Hiramatsu /* 20540adea3SMasami Hiramatsu * Whitelist ganerating macro. Specify functions which can be 21540adea3SMasami Hiramatsu * error-injectable using this macro. 22540adea3SMasami Hiramatsu */ 23663faf9fSMasami Hiramatsu #define ALLOW_ERROR_INJECTION(fname, _etype) \ 24663faf9fSMasami Hiramatsu static struct error_injection_entry __used \ 25540adea3SMasami Hiramatsu __attribute__((__section__("_error_injection_whitelist"))) \ 26663faf9fSMasami Hiramatsu _eil_addr_##fname = { \ 27663faf9fSMasami Hiramatsu .addr = (unsigned long)fname, \ 28663faf9fSMasami Hiramatsu .etype = EI_ETYPE_##_etype, \ 29663faf9fSMasami Hiramatsu }; 30540adea3SMasami Hiramatsu #else 31663faf9fSMasami Hiramatsu #define ALLOW_ERROR_INJECTION(fname, _etype) 32540adea3SMasami Hiramatsu #endif 33540adea3SMasami Hiramatsu #endif 34540adea3SMasami Hiramatsu 35540adea3SMasami Hiramatsu #endif /* _ASM_GENERIC_ERROR_INJECTION_H */ 36