[PATCH] x86/build: Build VSMP support only if selected

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VSMP support is built even if CONFIG_X86_VSMP is not set. This leads to a build
breakage when CONFIG_PCI is disabled as well.

Build VSMP code only when selected.

Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

---
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index ae13bc974416..b6b911c4c7f3 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -33,7 +33,7 @@
 extern u64 relocated_ramdisk;
 
 /* Interrupt control for vSMPowered x86_64 systems */
-#ifdef CONFIG_X86_64
+#if defined(CONFIG_X86_64) && defined(CONFIG_X86_VSMP)
 void vsmp_init(void);
 #else
 static inline void vsmp_init(void) { }
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 8824d01c0c35..647ce52b17d5 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -148,5 +148,5 @@ ifeq ($(CONFIG_X86_64),y)
 	obj-$(CONFIG_CALGARY_IOMMU)	+= pci-calgary_64.o tce_64.o
 
 	obj-$(CONFIG_MMCONF_FAM10H)	+= mmconf-fam10h_64.o
-	obj-y				+= vsmp_64.o
+	obj-$(CONFIG_X86_VSMP)		+= vsmp_64.o
 endif



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