diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index 850cdffdd69c..eae8ca2a6ba5 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -20,6 +20,7 @@
 #include <asm/of_device.h>
 #include <asm/io.h>
 #include <asm/sstate.h>
+#include <asm/reboot.h>
 
 #include <linux/unistd.h>
 
@@ -39,8 +40,6 @@ static irqreturn_t power_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-extern void machine_halt(void);
-extern void machine_alt_power_off(void);
 static void (*poweroff_method)(void) = machine_alt_power_off;
 
 void machine_power_off(void)
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 6eceac51ae62..75c1408a664f 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -47,6 +47,7 @@
 #include <asm/unistd.h>
 #include <asm/hypervisor.h>
 #include <asm/sstate.h>
+#include <asm/reboot.h>
 
 /* #define VERBOSE_SHOWREGS */
 
diff --git a/include/asm-sparc64/reboot.h b/include/asm-sparc64/reboot.h
new file mode 100644
index 000000000000..3f3f43f5be5e
--- /dev/null
+++ b/include/asm-sparc64/reboot.h
@@ -0,0 +1,6 @@
+#ifndef _SPARC64_REBOOT_H
+#define _SPARC64_REBOOT_H
+
+extern void machine_alt_power_off(void);
+
+#endif /* _SPARC64_REBOOT_H */