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| author | pang.xunlei <pang.xunlei@linaro.org> | 2014-11-18 19:15:19 +0800 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2014-11-21 12:00:00 -0800 |
| commit | c2c11ae4b6bc03b41720337028b940cbec9e316f (patch) | |
| tree | 84ea760eb63dc0e9b99eca1ef1564d526b8c82c9 /include/linux/rtc.h | |
| parent | 5322e4c2649844c04f480ca45572022eb684b872 (diff) | |
| download | linux-stable-c2c11ae4b6bc03b41720337028b940cbec9e316f.tar.gz linux-stable-c2c11ae4b6bc03b41720337028b940cbec9e316f.tar.bz2 linux-stable-c2c11ae4b6bc03b41720337028b940cbec9e316f.zip | |
rtc/lib: Provide y2038 safe rtc_tm_to_time()/rtc_time_to_tm() replacement
As part of addressing "y2038 problem" for in-kernel uses, this patch
adds safe rtc_tm_to_time64()/rtc_time64_to_tm() respectively using
time64_t.
After this patch, rtc_tm_to_time() is deprecated and all its call
sites will be fixed using corresponding safe versions, it can be
removed when having no users. Also change rtc_tm_to_time64() to
return time64_t directly instead of just as a parameter like
rtc_tm_to_time() does.
After this patch, rtc_time_to_tm() is deprecated and all its call
sites will be fixed using corresponding safe versions, it can be
removed when having no users.
In addition, change rtc_tm_to_ktime() and rtc_ktime_to_tm() to use
the safe version in passing.
Signed-off-by: pang.xunlei <pang.xunlei@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'include/linux/rtc.h')
| -rw-r--r-- | include/linux/rtc.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/include/linux/rtc.h b/include/linux/rtc.h index c2c28975293c..6d6be09a2fe5 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -19,11 +19,28 @@ extern int rtc_month_days(unsigned int month, unsigned int year); extern int rtc_year_days(unsigned int day, unsigned int month, unsigned int year); extern int rtc_valid_tm(struct rtc_time *tm); -extern int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time); -extern void rtc_time_to_tm(unsigned long time, struct rtc_time *tm); +extern time64_t rtc_tm_to_time64(struct rtc_time *tm); +extern void rtc_time64_to_tm(time64_t time, struct rtc_time *tm); ktime_t rtc_tm_to_ktime(struct rtc_time tm); struct rtc_time rtc_ktime_to_tm(ktime_t kt); +/** + * Deprecated. Use rtc_time64_to_tm(). + */ +static inline void rtc_time_to_tm(unsigned long time, struct rtc_time *tm) +{ + rtc_time64_to_tm(time, tm); +} + +/** + * Deprecated. Use rtc_tm_to_time64(). + */ +static inline int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time) +{ + *time = rtc_tm_to_time64(tm); + + return 0; +} #include <linux/device.h> #include <linux/seq_file.h> |