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ntp: Make tick_usec static

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There are no users of tick_usec outside of the NTP core code. Therefore
make tick_usec static.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/all/20240911-devel-anna-maria-b4-timers-ptp-ntp-v1-2-2d52f4e13476@linutronix.de
This commit is contained in:
Thomas Gleixner 2024-09-11 15:17:38 +02:00
parent a849a0273d
commit 66606a9384
2 changed files with 4 additions and 8 deletions
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7
include/linux/timex.h
View File

@ -139,13 +139,6 @@ unsigned long random_get_entropy_fallback(void);
#define MAXSEC 2048 /* max interval between updates (s) */
#define NTP_PHASE_LIMIT ((MAXPHASE / NSEC_PER_USEC) << 5) /* beyond max. dispersion */
/*
* kernel variables
* Note: maximum error = NTP sync distance = dispersion + delay / 2;
* estimated error = NTP dispersion.
*/
extern unsigned long tick_usec; /* USER_HZ period (usec) */
/* Required to safely shift negative values */
#define shift_right(x, s) ({ \
__typeof__(x) __x = (x); \

5
kernel/time/ntp.c
View File

@ -31,7 +31,7 @@
/* USER_HZ period (usecs): */
unsigned long tick_usec = USER_TICK_USEC;
static unsigned long tick_usec = USER_TICK_USEC;
static u64 tick_length;
static u64 tick_length_base;
@ -44,6 +44,9 @@ static u64 tick_length_base;
/*
* phase-lock loop variables
*
* Note: maximum error = NTP sync distance = dispersion + delay / 2;
* estimated error = NTP dispersion.
*/
/*