Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_GENERIC_ERROR_INJECTION_H
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#define _ASM_GENERIC_ERROR_INJECTION_H
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#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
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enum {
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EI_ETYPE_NULL, /* Return NULL if failure */
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EI_ETYPE_ERRNO, /* Return -ERRNO if failure */
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EI_ETYPE_ERRNO_NULL, /* Return -ERRNO or NULL if failure */
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EI_ETYPE_TRUE, /* Return true if failure */
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};
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struct error_injection_entry {
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unsigned long addr;
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int etype;
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};
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struct pt_regs;
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#ifdef CONFIG_FUNCTION_ERROR_INJECTION
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/*
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* Whitelist generating macro. Specify functions which can be error-injectable
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* using this macro. If you unsure what is required for the error-injectable
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* functions, please read Documentation/fault-injection/fault-injection.rst
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* 'Error Injectable Functions' section.
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*/
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#define ALLOW_ERROR_INJECTION(fname, _etype) \
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static struct error_injection_entry __used \
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__section("_error_injection_whitelist") \
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_eil_addr_##fname = { \
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.addr = (unsigned long)fname, \
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.etype = EI_ETYPE_##_etype, \
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}
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void override_function_with_return(struct pt_regs *regs);
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#else
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#define ALLOW_ERROR_INJECTION(fname, _etype)
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static inline void override_function_with_return(struct pt_regs *regs) { }
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#endif
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#endif
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#endif /* _ASM_GENERIC_ERROR_INJECTION_H */
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