Source of lib.c - linux-imx - PHYTEC BitBucket (Stash)

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EXPORT_SYMBOL(rtc_time64_to_tm);
​
/*
 * Does the rtc_time represent a valid date/time?
 */
int rtc_valid_tm(struct rtc_time *tm)
{
    if (tm->tm_year < 70
        || ((unsigned)tm->tm_mon) >= 12
        || tm->tm_mday < 1
        || tm->tm_mday > rtc_month_days(tm->tm_mon, tm->tm_year + 1900)
        || tm->tm_mday > rtc_month_days(tm->tm_mon, ((unsigned)tm->tm_year + 1900))
        || ((unsigned)tm->tm_hour) >= 24
        || ((unsigned)tm->tm_min) >= 60
        || ((unsigned)tm->tm_sec) >= 60)
        return -EINVAL;
​
    return 0;
}
EXPORT_SYMBOL(rtc_valid_tm);
​
/*
 * rtc_tm_to_time64 - Converts rtc_time to time64_t.
 * Convert Gregorian date to seconds since 01-01-1970 00:00:00.
 */
time64_t rtc_tm_to_time64(struct rtc_time *tm)
{
    return mktime64(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
            tm->tm_hour, tm->tm_min, tm->tm_sec);
    return mktime64(((unsigned)tm->tm_year + 1900), tm->tm_mon + 1,
            tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
}
EXPORT_SYMBOL(rtc_tm_to_time64);
​
/*
 * Convert rtc_time to ktime
 */
ktime_t rtc_tm_to_ktime(struct rtc_time tm)
{
    return ktime_set(rtc_tm_to_time64(&tm), 0);
}