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| author | Andrew Morton <akpm@linux-foundation.org> | 2009-03-31 15:24:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-01 08:59:24 -0700 |
| commit | 78d89ef40c2ff7265df077e20c4d76be7d415204 (patch) | |
| tree | 68503b0252682a496495b7adb46f6aa278db88ae /include/linux/rtc.h | |
| parent | 47367a3ba425d70467af0009782098235ddbf204 (diff) | |
| download | lwn-78d89ef40c2ff7265df077e20c4d76be7d415204.tar.gz lwn-78d89ef40c2ff7265df077e20c4d76be7d415204.zip | |
rtc: convert LEAP_YEAR into an inline
- the LEAP_YEAR macro is buggy - it references its arg multiple times.
Fix this by turning it into a C function.
- give it a more approriate name
- Move it to rtc.h so that other .c files can use it, instead of copying it.
Cc: dann frazier <dannf@hp.com>
Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
Cc: stephane eranian <eranian@googlemail.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/rtc.h')
| -rw-r--r-- | include/linux/rtc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 4046b75563c1..60f88a7fb13d 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -99,6 +99,7 @@ struct rtc_pll_info { #ifdef __KERNEL__ +#include <linux/types.h> #include <linux/interrupt.h> extern int rtc_month_days(unsigned int month, unsigned int year); @@ -232,6 +233,11 @@ int rtc_register(rtc_task_t *task); int rtc_unregister(rtc_task_t *task); int rtc_control(rtc_task_t *t, unsigned int cmd, unsigned long arg); +static inline bool is_leap_year(unsigned int year) +{ + return (!(year % 4) && (year % 100)) || !(year % 400); +} + #endif /* __KERNEL__ */ #endif /* _LINUX_RTC_H_ */ |