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Commit e83d0a41 authored by Xunlei Pang's avatar Xunlei Pang Committed by John Stultz
Browse files

time: Remove read_boot_clock() 



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: default avatarXunlei Pang <pang.xunlei@linaro.org>
[jstultz: Minor commit message tweak suggested by Ingo]
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
parent 689911c7

include/linux/timekeeping.h

+0 −1
Original line number Diff line number Diff line
@@ -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);

kernel/time/timekeeping.c

+3 −11
Original line number Diff line number Diff line
@@ -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;