diff options
Diffstat (limited to 'include/linux/indirect_call_wrapper.h')
| -rw-r--r-- | include/linux/indirect_call_wrapper.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/include/linux/indirect_call_wrapper.h b/include/linux/indirect_call_wrapper.h index 00d7e8e919c6..35227d47cfc9 100644 --- a/include/linux/indirect_call_wrapper.h +++ b/include/linux/indirect_call_wrapper.h @@ -2,7 +2,7 @@ #ifndef _LINUX_INDIRECT_CALL_WRAPPER_H #define _LINUX_INDIRECT_CALL_WRAPPER_H -#ifdef CONFIG_RETPOLINE +#ifdef CONFIG_MITIGATION_RETPOLINE /* * INDIRECT_CALL_$NR - wrapper for indirect calls with $NR known builtin @@ -11,7 +11,7 @@ * @__VA_ARGS__: arguments for @f * * Avoid retpoline overhead for known builtin, checking @f vs each of them and - * eventually invoking directly the builtin function. The functions are check + * eventually invoking directly the builtin function. The functions are checked * in the given order. Fallback to the indirect call. */ #define INDIRECT_CALL_1(f, f1, ...) \ @@ -23,15 +23,29 @@ likely(f == f2) ? f2(__VA_ARGS__) : \ INDIRECT_CALL_1(f, f1, __VA_ARGS__); \ }) +#define INDIRECT_CALL_3(f, f3, f2, f1, ...) \ + ({ \ + likely(f == f3) ? f3(__VA_ARGS__) : \ + INDIRECT_CALL_2(f, f2, f1, __VA_ARGS__); \ + }) +#define INDIRECT_CALL_4(f, f4, f3, f2, f1, ...) \ + ({ \ + likely(f == f4) ? f4(__VA_ARGS__) : \ + INDIRECT_CALL_3(f, f3, f2, f1, __VA_ARGS__); \ + }) #define INDIRECT_CALLABLE_DECLARE(f) f #define INDIRECT_CALLABLE_SCOPE +#define EXPORT_INDIRECT_CALLABLE(f) EXPORT_SYMBOL(f) #else #define INDIRECT_CALL_1(f, f1, ...) f(__VA_ARGS__) #define INDIRECT_CALL_2(f, f2, f1, ...) f(__VA_ARGS__) +#define INDIRECT_CALL_3(f, f3, f2, f1, ...) f(__VA_ARGS__) +#define INDIRECT_CALL_4(f, f4, f3, f2, f1, ...) f(__VA_ARGS__) #define INDIRECT_CALLABLE_DECLARE(f) #define INDIRECT_CALLABLE_SCOPE static +#define EXPORT_INDIRECT_CALLABLE(f) #endif /* @@ -48,4 +62,10 @@ #define INDIRECT_CALL_INET(f, f2, f1, ...) f(__VA_ARGS__) #endif +#if IS_ENABLED(CONFIG_INET) +#define INDIRECT_CALL_INET_1(f, f1, ...) INDIRECT_CALL_1(f, f1, __VA_ARGS__) +#else +#define INDIRECT_CALL_INET_1(f, f1, ...) f(__VA_ARGS__) +#endif + #endif |