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time: Remove read_boot_clock()

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Now that we have a read_boot_clock64() function available on every
architecture, and converted all the users to it, it's time to remove
the (now unused) read_boot_clock() completely from the kernel.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org>
[jstultz: Minor commit message tweak suggested by Ingo]
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Xunlei Pang 2015-04-09 09:04:42 +08:00 committed by John Stultz
parent 689911c734
commit e83d0a4106
2 changed files with 3 additions and 12 deletions
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1
include/linux/timekeeping.h
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@ -267,7 +267,6 @@ extern int persistent_clock_is_local;
extern void read_persistent_clock(struct timespec *ts);
extern void read_persistent_clock64(struct timespec64 *ts);
extern void read_boot_clock(struct timespec *ts);
extern void read_boot_clock64(struct timespec64 *ts);
extern int update_persistent_clock(struct timespec now);
extern int update_persistent_clock64(struct timespec64 now);

14
kernel/time/timekeeping.c
View File

@ -1188,28 +1188,20 @@ void __weak read_persistent_clock64(struct timespec64 *ts64)
}
/**
* read_boot_clock - Return time of the system start.
* read_boot_clock64 - Return time of the system start.
*
* Weak dummy function for arches that do not yet support it.
* Function to read the exact time the system has been started.
* Returns a timespec with tv_sec=0 and tv_nsec=0 if unsupported.
* Returns a timespec64 with tv_sec=0 and tv_nsec=0 if unsupported.
*
* XXX - Do be sure to remove it once all arches implement it.
*/
void __weak read_boot_clock(struct timespec *ts)
void __weak read_boot_clock64(struct timespec64 *ts)
{
ts->tv_sec = 0;
ts->tv_nsec = 0;
}
void __weak read_boot_clock64(struct timespec64 *ts64)
{
struct timespec ts;
read_boot_clock(&ts);
*ts64 = timespec_to_timespec64(ts);
}
/* Flag for if timekeeping_resume() has injected sleeptime */
static bool sleeptime_injected;