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authorChristophe Leroy <christophe.leroy@csgroup.eu>2022-02-15 15:41:04 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2022-02-16 15:25:11 +0300
commite1478d8eaf27704db17a44dee4c53696ed01fc9c (patch)
tree7968852fd3c179c5b9311a9d70f18ed57e5b6ad8 /arch/ia64
parent0dc690e4ef5b901e9d4b53520854fbd5c749e09d (diff)
downloadlinux-e1478d8eaf27704db17a44dee4c53696ed01fc9c.tar.xz
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.h19
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 */