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| author | Maxime Ripard <maxime@cerno.tech> | 2022-10-18 16:00:03 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-10-18 16:00:03 +0300 |
| commit | a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb (patch) | |
| tree | b2d44a1da423c53bd6c3ab3facd45ff5f2087ffd /include/linux/compiler.h | |
| parent | 28743e25fa1c867675bd8ff976eb92d4251f13a1 (diff) | |
| parent | 9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff) | |
| download | linux-a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb.tar.xz | |
Merge drm/drm-next into drm-misc-next
Let's kick-off this release cycle.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 01ce94b58b42..973a1bfd7ef5 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -203,16 +203,6 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, __v; \ }) -/* - * With CONFIG_CFI_CLANG, the compiler replaces function addresses in - * instrumented C code with jump table addresses. Architectures that - * support CFI can define this macro to return the actual function address - * when needed. - */ -#ifndef function_nocfi -#define function_nocfi(x) (x) -#endif - #endif /* __KERNEL__ */ /* @@ -221,9 +211,11 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, * otherwise, or eliminated entirely due to lack of references that are * visible to the compiler. */ -#define __ADDRESSABLE(sym) \ - static void * __section(".discard.addressable") __used \ +#define ___ADDRESSABLE(sym, __attrs) \ + static void * __used __attrs \ __UNIQUE_ID(__PASTE(__addressable_,sym)) = (void *)&sym; +#define __ADDRESSABLE(sym) \ + ___ADDRESSABLE(sym, __section(".discard.addressable")) /** * offset_to_ptr - convert a relative memory offset to an absolute pointer @@ -240,6 +232,12 @@ static inline void *offset_to_ptr(const int *off) #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) /* + * Whether 'type' is a signed type or an unsigned type. Supports scalar types, + * bool and also pointer types. + */ +#define is_signed_type(type) (((type)(-1)) < (__force type)1) + +/* * This is needed in functions which generate the stack canary, see * arch/x86/kernel/smpboot.c::start_secondary() for an example. */ |