diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 29073532f94c..60a008857a38 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -240,7 +240,7 @@ config X86_HAS_BOOT_CPU_ID
 
 config SPARSE_IRQ
 	bool "Support sparse irq numbering"
-	depends on (PCI_MSI || HT_IRQ) && SMP
+	depends on PCI_MSI || HT_IRQ
 	default y
 	help
 	  This enables support for sparse irq, esp for msi/msi-x. You may need
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index c9958ec5e25e..f78371b22529 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -5,6 +5,7 @@
 #include <linux/pci.h>
 #include <linux/irq.h>
 #include <asm/io_apic.h>
+#include <asm/smp.h>
 #include <linux/intel-iommu.h>
 #include "intr_remapping.h"