[PATCH 1/2] tick/sched: fix build failure for CONFIG_NO_HZ_COMMON=n

From: Arnd Bergmann
Date: Wed Feb 28 2024 - 07:39:04 EST


From: Arnd Bergmann <arnd@xxxxxxxx>

In configurations with CONFIG_TICK_ONESHOT but no CONFIG_NO_HZ or
CONFIG_HIGH_RES_TIMERS, tick_sched_timer_dying() is stubbed out,
but still defined as a global function as well:

kernel/time/tick-sched.c:1599:6: error: redefinition of 'tick_sched_timer_dying'
1599 | void tick_sched_timer_dying(int cpu)
| ^
kernel/time/tick-sched.h:111:20: note: previous definition is here
111 | static inline void tick_sched_timer_dying(int cpu) { }
| ^

This configuration only appears with ARM CONFIG_ARCH_BCM_MOBILE,
which should not actually select CONFIG_TICK_ONESHOT.

Adjust the #ifdef for the stub to match the condition for building the
tick-sched.c file for consistency with the definition and to avoid
the build regression.

Fixes: 3aedb7fcd88a ("tick/sched: Remove useless oneshot ifdeffery")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
kernel/time/tick-sched.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/tick-sched.h b/kernel/time/tick-sched.h
index 58d8d1c49dd3..e11c4dc65bcb 100644
--- a/kernel/time/tick-sched.h
+++ b/kernel/time/tick-sched.h
@@ -105,7 +105,7 @@ struct tick_sched {
extern struct tick_sched *tick_get_tick_sched(int cpu);

extern void tick_setup_sched_timer(bool hrtimer);
-#if defined CONFIG_NO_HZ_COMMON || defined CONFIG_HIGH_RES_TIMERS
+#if defined CONFIG_TICK_ONESHOT
extern void tick_sched_timer_dying(int cpu);
#else
static inline void tick_sched_timer_dying(int cpu) { }
--
2.39.2