diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2026-06-25 13:02:03 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2026-07-21 21:00:09 -0300 |
| commit | 4a97144794920cb17e4a1c56c243edc757f42df9 (patch) | |
| tree | bcea13935a18c7fca6b2601bd905cbc0d5e9e651 /tools/include | |
| parent | 88b8c6ae2ccb3ef9dbb04c8e13a4d1a98c42e922 (diff) | |
tools headers UAPI: Sync linux/const.h with the kernel sources
To pick up the changes in:
de9e2b3d88af3641 ("uapi: Provide DIV_ROUND_CLOSEST()")
That just rebuilds perf, silencing this build warning.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/linux/const.h include/uapi/linux/const.h
Please see tools/include/uapi/README for further details.
Cc: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/uapi/linux/const.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/const.h b/tools/include/uapi/linux/const.h index b8f629ef135f..565f309b9df8 100644 --- a/tools/include/uapi/linux/const.h +++ b/tools/include/uapi/linux/const.h @@ -50,4 +50,22 @@ #define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) +/* + * Divide positive or negative dividend by positive or negative divisor + * and round to closest integer. Result is undefined for negative + * divisors if the dividend variable type is unsigned and for negative + * dividends if the divisor variable type is unsigned. + */ +#define __KERNEL_DIV_ROUND_CLOSEST(x, divisor) \ +({ \ + __typeof__(x) __x = x; \ + __typeof__(divisor) __d = divisor; \ + \ + (((__typeof__(x))-1) > 0 || \ + ((__typeof__(divisor))-1) > 0 || \ + (((__x) > 0) == ((__d) > 0))) ? \ + (((__x) + ((__d) / 2)) / (__d)) : \ + (((__x) - ((__d) / 2)) / (__d)); \ +}) + #endif /* _UAPI_LINUX_CONST_H */ |