diff --git a/arch/x86/include/asm/prom.h b/arch/x86/include/asm/prom.h
index 02644e010514..365798cb4408 100644
--- a/arch/x86/include/asm/prom.h
+++ b/arch/x86/include/asm/prom.h
@@ -23,12 +23,10 @@ extern int of_ioapic;
 extern u64 initial_dtb;
 extern void add_dtb(u64 data);
 void x86_of_pci_init(void);
-void x86_dtb_parse_smp_config(void);
 void x86_flattree_get_config(void);
 #else
 static inline void add_dtb(u64 data) { }
 static inline void x86_of_pci_init(void) { }
-static inline void x86_dtb_parse_smp_config(void) { }
 static inline void x86_flattree_get_config(void) { }
 #define of_ioapic 0
 #endif
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index b93ce8a39ff7..8e3c53b4d070 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -279,6 +279,15 @@ static void __init dtb_apic_setup(void)
 	dtb_ioapic_setup();
 }
 
+static void __init x86_dtb_parse_smp_config(void)
+{
+	if (!of_have_populated_dt())
+		return;
+
+	dtb_setup_hpet();
+	dtb_apic_setup();
+}
+
 void __init x86_flattree_get_config(void)
 {
 #ifdef CONFIG_OF_EARLY_FLATTREE
@@ -307,12 +316,3 @@ void __init x86_flattree_get_config(void)
 	if (of_have_populated_dt())
 		x86_init.mpparse.parse_smp_cfg = x86_dtb_parse_smp_config;
 }
-
-void __init x86_dtb_parse_smp_config(void)
-{
-	if (!of_have_populated_dt())
-		return;
-
-	dtb_setup_hpet();
-	dtb_apic_setup();
-}