diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index b2b4f521618002669d13097e80885a8a7bf35c8f..63bef6fc0f3ee46051401c6e8be747286a4feb6f 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -29,6 +29,7 @@
 #include <linux/bootmem.h>
 #include <linux/console.h>
 #include <linux/delay.h>
+#include <linux/cpu.h>
 #include <linux/kernel.h>
 #include <linux/reboot.h>
 #include <linux/sched.h>
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 832bb2bb29bd383b8a00846f6eb79036a8cc399e..647dd94a0c399f13f8311e751d273b033908328e 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -17,6 +17,7 @@
 #include <linux/sched/debug.h>
 #include <linux/sched/task_stack.h>
 #include <linux/mm.h>
+#include <linux/cpu.h>
 
 #include <asm/page.h>
 #include <asm/processor.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 3de07004c02e726b184fe9ecfb29390701c00eb8..911dc0b49be05bbf8c1a450fc721a938cb0e1f3c 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -19,6 +19,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/cpu.h>
 #include <linux/kernel.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 21f9c74496e75e33e300624256e9c69f22f439f3..f92081234afd97d39f797890a4383e6bc4406929 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -30,6 +30,8 @@ struct cpu {
 
 extern void boot_cpu_init(void);
 extern void boot_cpu_state_init(void);
+extern void cpu_init(void);
+extern void trap_init(void);
 
 extern int register_cpu(struct cpu *cpu, int num);
 extern struct device *get_cpu_device(unsigned cpu);
diff --git a/include/linux/sched/init.h b/include/linux/sched/init.h
new file mode 100644
index 0000000000000000000000000000000000000000..15e46313e55eab80cfbc4f51f1e3d6fbc4e256b4
--- /dev/null
+++ b/include/linux/sched/init.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_INIT_H
+#define _LINUX_SCHED_INIT_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_INIT_H */
diff --git a/init/main.c b/init/main.c
index ca9f53fb4125b2eac4a7b9b4e7edcb5e53be3331..eae2f15657c62c31f66353f4bd3c4af1e03451cf 100644
--- a/init/main.c
+++ b/init/main.c
@@ -63,6 +63,7 @@
 #include <linux/device.h>
 #include <linux/kthread.h>
 #include <linux/sched.h>
+#include <linux/sched/init.h>
 #include <linux/signal.h>
 #include <linux/idr.h>
 #include <linux/kgdb.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 76e3af3f39f4a9ef4e748030069dbfe7b3523b04..5cbf92214ad89287d111ab8300e5b55923d83ffe 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -18,6 +18,7 @@
 #include <linux/sched/task.h>
 #include <linux/sched/task_stack.h>
 #include <linux/sched/cputime.h>
+#include <linux/sched/init.h>
 
 #include <linux/u64_stats_sync.h>
 #include <linux/kernel_stat.h>