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authorThomas Gleixner <tglx@linutronix.de>2024-09-11 15:17:38 +0200
committerThomas Gleixner <tglx@linutronix.de>2024-10-02 16:53:38 +0200
commit66606a93849bfe3cbe9f0b801b40f60b87c54e11 (patch)
tree6c6b8e7f439e39fe1dd4d30b7e1ff18986f38d19
parentntp: Remove unused tick_nsec (diff)
downloadwireguard-linux-66606a93849bfe3cbe9f0b801b40f60b87c54e11.tar.xz
wireguard-linux-66606a93849bfe3cbe9f0b801b40f60b87c54e11.zip
ntp: Make tick_usec static
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
-rw-r--r--include/linux/timex.h7
-rw-r--r--kernel/time/ntp.c5
2 files changed, 4 insertions, 8 deletions
diff --git a/include/linux/timex.h b/include/linux/timex.h
index 7f7a12fd8200..4ee32eff3f22 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -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); \
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index c17cc9d857bc..ed15ec993a82 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -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.
*/
/*