kernel: Simplify clear_halting() on UP systems

There is no need for clear_halting() to do anything on UP systems. Signed-off-by: Peter Mitsis <[email protected]>
zephyrproject-rtos · Nov 20, 2024 · 5657826 · 5657826
1 parent c98acc1
commit 5657826
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/kernel/sched.c b/kernel/sched.c
@@ -158,8 +158,10 @@ static inline bool is_halting(struct k_thread *thread)
 /* Clear the halting bits (_THREAD_ABORTING and _THREAD_SUSPENDING) */
 static inline void clear_halting(struct k_thread *thread)
 {
+#if CONFIG_MP_MAX_NUM_CPUS > 1
 	barrier_dmem_fence_full(); /* Other cpus spin on this locklessly! */
 	thread->base.thread_state &= ~(_THREAD_ABORTING | _THREAD_SUSPENDING);
+#endif
 }
 
 static ALWAYS_INLINE struct k_thread *next_up(void)