diff options
Diffstat (limited to 'include/linux/timex.h')
| -rw-r--r-- | include/linux/timex.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/timex.h b/include/linux/timex.h index 7e050a2cc35..04a4a8cb4ed 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -282,6 +282,13 @@ static inline int ntp_synced(void) return !(time_status & STA_UNSYNC); } +/* Required to safely shift negative values */ +#define shift_right(x, s) ({ \ + __typeof__(x) __x = (x); \ + __typeof__(s) __s = (s); \ + __x < 0 ? -(-__x >> __s) : __x >> __s; \ +}) + #ifdef CONFIG_TIME_INTERPOLATION |