diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-02-15 13:41:04 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-02-16 23:25:11 +1100 |
| commit | e1478d8eaf27704db17a44dee4c53696ed01fc9c (patch) | |
| tree | 7968852fd3c179c5b9311a9d70f18ed57e5b6ad8 /arch/ia64 | |
| parent | 0dc690e4ef5b901e9d4b53520854fbd5c749e09d (diff) | |
asm-generic: Refactor dereference_[kernel]_function_descriptor()
dereference_function_descriptor() and
dereference_kernel_function_descriptor() are identical on the
three architectures implementing them.
Make them common and put them out-of-line in kernel/extable.c
which is one of the users and has similar type of functions.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-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/449db09b2eba57f4ab05f80102a67d8675bc8bcd.1644928018.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/include/asm/sections.h | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h index 3abe0562b01a..8e0875cf6071 100644 --- a/arch/ia64/include/asm/sections.h +++ b/arch/ia64/include/asm/sections.h @@ -30,23 +30,4 @@ extern char __start_gate_brl_fsys_bubble_down_patchlist[], __end_gate_brl_fsys_b extern char __start_unwind[], __end_unwind[]; extern char __start_ivt_text[], __end_ivt_text[]; -#undef dereference_function_descriptor -static inline void *dereference_function_descriptor(void *ptr) -{ - struct fdesc *desc = ptr; - void *p; - - if (!get_kernel_nofault(p, (void *)&desc->addr)) - ptr = p; - return ptr; -} - -#undef dereference_kernel_function_descriptor -static inline void *dereference_kernel_function_descriptor(void *ptr) -{ - if (ptr < (void *)__start_opd || ptr >= (void *)__end_opd) - return ptr; - return dereference_function_descriptor(ptr); -} - #endif /* _ASM_IA64_SECTIONS_H */ |