kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/include/linux/sched/hotplug.h
..
..
@@ -15,10 +15,8 @@
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 extern void sched_cpu_drain_rq_wait(unsigned int cpu);
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 #ifdef CONFIG_HOTPLUG_CPU
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-extern int sched_cpu_wait_empty(unsigned int cpu);
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 extern int sched_cpu_dying(unsigned int cpu);
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 #else
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-# define sched_cpu_wait_empty	NULL
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 # define sched_cpu_dying	NULL
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 #endif
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