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authorXunlei Pang <pang.xunlei@linaro.org>2015-01-22 02:31:55 +0000
committerJohn Stultz <john.stultz@linaro.org>2015-01-23 17:21:57 -0800
commit9a4a445e30f0b601ca2d9433274047cbf48ebf9e (patch)
treeb02b62d1598b6a84332d527ec7e9ba996948d084
parent966301a23ef8ff0a4c5f71b585dafbf334808574 (diff)
downloadlinux-9a4a445e30f0b601ca2d9433274047cbf48ebf9e.tar.bz2
rtc: Convert rtc_set_ntp_time() to use timespec64
rtc_set_ntp_time() uses timespec which is y2038-unsafe, so modify to use timespec64 which is y2038-safe, then replace rtc_time_to_tm() with rtc_time64_to_tm(). Also adjust all its call sites(only NTP uses it) accordingly. Cc: pang.xunlei <pang.xunlei@linaro.org> Cc: Arnd Bergmann <arnd.bergmann@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
-rw-r--r--drivers/rtc/systohc.c6
-rw-r--r--include/linux/rtc.h2
-rw-r--r--kernel/time/ntp.c4
3 files changed, 6 insertions, 6 deletions
diff --git a/drivers/rtc/systohc.c b/drivers/rtc/systohc.c
index bf3e242ccc5c..eb71872d0361 100644
--- a/drivers/rtc/systohc.c
+++ b/drivers/rtc/systohc.c
@@ -20,16 +20,16 @@
*
* If temporary failure is indicated the caller should try again 'soon'
*/
-int rtc_set_ntp_time(struct timespec now)
+int rtc_set_ntp_time(struct timespec64 now)
{
struct rtc_device *rtc;
struct rtc_time tm;
int err = -ENODEV;
if (now.tv_nsec < (NSEC_PER_SEC >> 1))
- rtc_time_to_tm(now.tv_sec, &tm);
+ rtc_time64_to_tm(now.tv_sec, &tm);
else
- rtc_time_to_tm(now.tv_sec + 1, &tm);
+ rtc_time64_to_tm(now.tv_sec + 1, &tm);
rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
if (rtc) {
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 6d6be09a2fe5..dcad7ee0d746 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -161,7 +161,7 @@ extern void devm_rtc_device_unregister(struct device *dev,
extern int rtc_read_time(struct rtc_device *rtc, struct rtc_time *tm);
extern int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm);
extern int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs);
-extern int rtc_set_ntp_time(struct timespec now);
+extern int rtc_set_ntp_time(struct timespec64 now);
int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm);
extern int rtc_read_alarm(struct rtc_device *rtc,
struct rtc_wkalrm *alrm);
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 87a346fd6d61..183dfe2191c6 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -488,13 +488,13 @@ static void sync_cmos_clock(struct work_struct *work)
getnstimeofday64(&now);
if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec * 5) {
- struct timespec adjust = timespec64_to_timespec(now);
+ struct timespec64 adjust = now;
fail = -ENODEV;
if (persistent_clock_is_local)
adjust.tv_sec -= (sys_tz.tz_minuteswest * 60);
#ifdef CONFIG_GENERIC_CMOS_UPDATE
- fail = update_persistent_clock(adjust);
+ fail = update_persistent_clock(timespec64_to_timespec(adjust));
#endif
#ifdef CONFIG_RTC_SYSTOHC
if (fail == -ENODEV)