linux-kernel - [PATCH 2/3] hrtimer: Remove public definition of HIGH_RES

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Message-Id: <20260107-hrtimer-header-cleanup-v1-2-1a698ef0ddae@linutronix.de>
Date: Wed, 07 Jan 2026 11:36:57 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>, 
 Frederic Weisbecker <frederic@...nel.org>, 
 Thomas Gleixner <tglx@...utronix.de>
Cc: linux-kernel@...r.kernel.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH 2/3] hrtimer: Remove public definition of HIGH_RES_NSEC

This constant is only used in a single place and is has a very generic
name polluting the global namespace.

Move the constant closer to its only user.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 include/linux/hrtimer_defs.h | 12 ------------
 kernel/time/hrtimer.c        |  8 ++++++++
 2 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/include/linux/hrtimer_defs.h b/include/linux/hrtimer_defs.h
index e0280d851455..02b010df6570 100644
--- a/include/linux/hrtimer_defs.h
+++ b/include/linux/hrtimer_defs.h
@@ -6,18 +6,6 @@
 #include <linux/timerqueue.h>
 #include <linux/seqlock.h>
 
-#ifdef CONFIG_HIGH_RES_TIMERS
-
-/*
- * The resolution of the clocks. The resolution value is returned in
- * the clock_getres() system call to give application programmers an
- * idea of the (in)accuracy of timers. Timer values are rounded up to
- * this resolution values.
- */
-# define HIGH_RES_NSEC		1
-
-#endif
-
 #ifdef CONFIG_64BIT
 # define __hrtimer_clock_base_align	____cacheline_aligned
 #else
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index f8ea8c8fc895..2d319f8aff14 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -49,6 +49,14 @@
 
 #include "tick-internal.h"
 
+/*
+ * The resolution of the clocks. The resolution value is returned in
+ * the clock_getres() system call to give application programmers an
+ * idea of the (in)accuracy of timers. Timer values are rounded up to
+ * this resolution values.
+ */
+#define HIGH_RES_NSEC		1
+
 /*
  * Masks for selecting the soft and hard context timers from
  * cpu_base->active

-- 
2.52.0