Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef _ASM_GENERIC_ERROR_INJECTION_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _ASM_GENERIC_ERROR_INJECTION_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #if defined(__KERNEL__) && !defined(__ASSEMBLY__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 	EI_ETYPE_NONE,		/* Dummy value for undefined case */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	EI_ETYPE_NULL,		/* Return NULL if failure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	EI_ETYPE_ERRNO,		/* Return -ERRNO if failure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	EI_ETYPE_ERRNO_NULL,	/* Return -ERRNO or NULL if failure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	EI_ETYPE_TRUE,		/* Return true if failure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) struct error_injection_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	unsigned long	addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	int		etype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct pt_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #ifdef CONFIG_FUNCTION_ERROR_INJECTION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * Whitelist ganerating macro. Specify functions which can be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  * error-injectable using this macro.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define ALLOW_ERROR_INJECTION(fname, _etype)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static struct error_injection_entry __used				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	__section("_error_injection_whitelist")				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	_eil_addr_##fname = {						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		.addr = (unsigned long)fname,				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		.etype = EI_ETYPE_##_etype,				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) void override_function_with_return(struct pt_regs *regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define ALLOW_ERROR_INJECTION(fname, _etype)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static inline void override_function_with_return(struct pt_regs *regs) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #endif /* _ASM_GENERIC_ERROR_INJECTION_H */