diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-31 09:10:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-31 09:10:03 +0200 |
| commit | 92722bac5fe4dc4582282bad02dd1fb95e892705 (patch) | |
| tree | 669a7eac6392b08965cbb5be456b9881aeb30b96 /tools/include/linux/const.h | |
| parent | 39b27e89a76f3827ad93aed9213a6daf2b91f819 (diff) | |
| parent | 8124c8a6b35386f73523d27eacb71b5364a68c4c (diff) | |
Merge 5.13-rc4 into driver-core-next
We need the driver core fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/include/linux/const.h')
| -rw-r--r-- | tools/include/linux/const.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/include/linux/const.h b/tools/include/linux/const.h index 81b8aae5a855..435ddd72d2c4 100644 --- a/tools/include/linux/const.h +++ b/tools/include/linux/const.h @@ -3,4 +3,12 @@ #include <vdso/const.h> +/* + * 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))) + #endif /* _LINUX_CONST_H */ |