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| author | Ingo Molnar <mingo@kernel.org> | 2024-02-14 10:45:07 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-02-14 10:45:07 +0100 |
| commit | 03c11eb3b16dc0058589751dfd91f254be2be613 (patch) | |
| tree | e5f2889212fec0bb0babdce9abd781ab487e246a /include/linux/compiler.h | |
| parent | de8c6a352131f642b82474abe0cbb5dd26a7e081 (diff) | |
| parent | 841c35169323cd833294798e58b9bf63fa4fa1de (diff) | |
| download | lwn-03c11eb3b16dc0058589751dfd91f254be2be613.tar.gz lwn-03c11eb3b16dc0058589751dfd91f254be2be613.zip | |
Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch
Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index bf9815eaf4aa..cdcdaa48b4d2 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -177,10 +177,7 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, __asm__ ("" : "=r" (var) : "0" (var)) #endif -/* Not-quite-unique ID. */ -#ifndef __UNIQUE_ID -# define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __LINE__) -#endif +#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) /** * data_race - mark an expression as containing intentional data races @@ -231,6 +228,14 @@ static inline void *offset_to_ptr(const int *off) #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) /* + * This returns a constant expression while determining if an argument is + * a constant expression, most importantly without evaluating the argument. + * Glory to Martin Uecker <Martin.Uecker@med.uni-goettingen.de> + */ +#define __is_constexpr(x) \ + (sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8))) + +/* * Whether 'type' is a signed type or an unsigned type. Supports scalar types, * bool and also pointer types. */ |