diff options
| author |   Baolin Wang <baolin.wang@linaro.org> | 2017-11-09 15:09:20 +0800 |
|---|---|---|
| committer |   Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-11-10 09:57:38 +0100 |
| commit | 9a06da2ecc92a81e969bd8c3768f63b63cb02e80 (patch) | |
| tree | 4ba5522beded6b402ec7dbf338760ff82d57a040 /drivers/rtc | |
| parent | rtc: xgene: mark PM functions as __maybe_unused (diff) | |
| download | linux-dev-9a06da2ecc92a81e969bd8c3768f63b63cb02e80.tar.xz linux-dev-9a06da2ecc92a81e969bd8c3768f63b63cb02e80.zip | |
rtc: sysfs: Use time64_t variables to set time/alarm
Use time64_t variables and related APIs for sysfs interfaces to
support setting time or alarm after the year 2038 on 32-bit system.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-sysfs.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c index e364550eb9a7..92ff2edb86a6 100644 --- a/drivers/rtc/rtc-sysfs.c +++ b/drivers/rtc/rtc-sysfs.c @@ -72,9 +72,10 @@ since_epoch_show(struct device *dev, struct device_attribute *attr, char *buf) retval = rtc_read_time(to_rtc_device(dev), &tm); if (retval == 0) { - unsigned long time; - rtc_tm_to_time(&tm, &time); - retval = sprintf(buf, "%lu\n", time); + time64_t time; + + time = rtc_tm_to_time64(&tm); + retval = sprintf(buf, "%lld\n", time); } return retval; @@ -132,7 +133,7 @@ static ssize_t wakealarm_show(struct device *dev, struct device_attribute *attr, char *buf) { ssize_t retval; - unsigned long alarm; + time64_t alarm; struct rtc_wkalrm alm; /* Don't show disabled alarms. For uniformity, RTC alarms are @@ -145,8 +146,8 @@ wakealarm_show(struct device *dev, struct device_attribute *attr, char *buf) */ retval = rtc_read_alarm(to_rtc_device(dev), &alm); if (retval == 0 && alm.enabled) { - rtc_tm_to_time(&alm.time, &alarm); - retval = sprintf(buf, "%lu\n", alarm); + alarm = rtc_tm_to_time64(&alm.time); + retval = sprintf(buf, "%lld\n", alarm); } return retval; @@ -157,8 +158,8 @@ wakealarm_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t n) { ssize_t retval; - unsigned long now, alarm; - unsigned long push = 0; + time64_t now, alarm; + time64_t push = 0; struct rtc_wkalrm alm; struct rtc_device *rtc = to_rtc_device(dev); const char *buf_ptr; @@ -170,7 +171,7 @@ wakealarm_store(struct device *dev, struct device_attribute *attr, retval = rtc_read_time(rtc, &alm.time); if (retval < 0) return retval; - rtc_tm_to_time(&alm.time, &now); + now = rtc_tm_to_time64(&alm.time); buf_ptr = buf; if (*buf_ptr == '+') { @@ -181,7 +182,7 @@ wakealarm_store(struct device *dev, struct device_attribute *attr, } else adjust = 1; } - retval = kstrtoul(buf_ptr, 0, &alarm); + retval = kstrtos64(buf_ptr, 0, &alarm); if (retval) return retval; if (adjust) { @@ -197,7 +198,7 @@ wakealarm_store(struct device *dev, struct device_attribute *attr, return retval; if (alm.enabled) { if (push) { - rtc_tm_to_time(&alm.time, &push); + push = rtc_tm_to_time64(&alm.time); alarm += push; } else return -EBUSY; @@ -212,7 +213,7 @@ wakealarm_store(struct device *dev, struct device_attribute *attr, */ alarm = now + 300; } - rtc_time_to_tm(alarm, &alm.time); + rtc_time64_to_tm(alarm, &alm.time); retval = rtc_set_alarm(rtc, &alm); return (retval < 0) ? retval : n; |