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| author | Jiri Kosina <jkosina@suse.cz> | 2021-06-30 09:02:28 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2021-06-30 09:02:28 +0200 |
| commit | 5a94296bc02ac616336da7b5332b86d2ca8827f0 (patch) | |
| tree | d13c4e7db2b4b01adb87fbf2ea5bafd2dc920b2f /include/linux/const.h | |
| parent | 3b770932eefb7c0c6319d332023efee87eb12913 (diff) | |
| parent | 24a31ea94922d391a96a9dd0a9a830de65423817 (diff) | |
Merge branch 'for-5.14/amd-sfh' into for-linus
- support for Renoir and Cezanne SoCs
- support for Ambient Light Sensor
- support for Human Presence Detection sensor
all from Basavaraj Natikar
Diffstat (limited to 'include/linux/const.h')
| -rw-r--r-- | include/linux/const.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/const.h b/include/linux/const.h index 81b8aae5a855..435ddd72d2c4 100644 --- a/include/linux/const.h +++ b/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 */ |