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ntp/pps: replace getnstime_raw_and_real with 64-bit version

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There is exactly one caller of getnstime_raw_and_real in the kernel,
which is the pps_get_ts function. This changes the caller and
the implementation to work on timespec64 types rather than timespec,
to avoid the time_t overflow on 32-bit architectures.

For consistency with the other new functions (ktime_get_seconds,
ktime_get_real_*, ...), I'm renaming the function to
ktime_get_raw_and_real_ts64.

We still need to convert from the internal 64-bit type to 32 bit
types in the caller, but this conversion is now pushed out from
getnstime_raw_and_real to pps_get_ts. A follow-up patch changes
the remaining pps code to completely avoid the conversion.

Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Arnd Bergmann 2015-09-28 22:21:29 +02:00 • committed by John Stultz
parent 7ec88e4be4
commit 071eee45b1
3 changed files with 14 additions and 9 deletions
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7
include/linux/pps_kernel.h
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@ -115,7 +115,12 @@ static inline void timespec_to_pps_ktime(struct pps_ktime *kt,
static inline void pps_get_ts(struct pps_event_time *ts)
{
getnstime_raw_and_real(&ts->ts_raw, &ts->ts_real);
struct timespec64 raw, real;
ktime_get_raw_and_real_ts64(&raw, &real);
ts->ts_raw = timespec64_to_timespec(raw);
ts->ts_real = timespec64_to_timespec(real);
}
#else /* CONFIG_NTP_PPS */