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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-02-15 15:41:03 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-02-16 15:25:11 +0300 |
| commit | 0dc690e4ef5b901e9d4b53520854fbd5c749e09d (patch) | |
| tree | fd7e71052ea5e331b861e1c6a9c232302cfe643e /include | |
| parent | a257cacc38718c83cee003487e03197f237f5c3f (diff) | |
| download | linux-0dc690e4ef5b901e9d4b53520854fbd5c749e09d.tar.xz | |
asm-generic: Define 'func_desc_t' to commonly describe function descriptors
We have three architectures using function descriptors, each with its
own type and name.
Add a common typedef that can be used in generic code.
Also add a stub typedef for architecture without function descriptors,
to avoid a forest of #ifdefs.
It replaces the similar 'func_desc_t' previously defined in
arch/powerpc/kernel/module_64.c
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/f1f91b142b3c1082bdc1586ce71c9bac1e75213c.1644928018.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/sections.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index 3ef83e1aebee..bbf97502470c 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -63,6 +63,11 @@ extern __visible const void __nosave_begin, __nosave_end; #else #define dereference_function_descriptor(p) ((void *)(p)) #define dereference_kernel_function_descriptor(p) ((void *)(p)) + +/* An address is simply the address of the function. */ +typedef struct { + unsigned long addr; +} func_desc_t; #endif static inline bool have_function_descriptors(void) |