diff --git a/drivers/pci/msi.h b/drivers/pci/msi.h
index 56951c39d3a3e8c8d6656f2b2a2f1ac49321f475..9b31d4cbbce46f6749adca35924f1ef045813cf8 100644
--- a/drivers/pci/msi.h
+++ b/drivers/pci/msi.h
@@ -110,8 +110,8 @@ extern int pci_vector_resources(int last, int nr_released);
 	(1 << ((control & PCI_MSI_FLAGS_QMASK) >> 1))
 #define multi_msi_enable(control, num) \
 	control |= (((num >> 1) << 4) & PCI_MSI_FLAGS_QSIZE);
-#define is_64bit_address(control)	(control & PCI_MSI_FLAGS_64BIT)
-#define is_mask_bit_support(control)	(control & PCI_MSI_FLAGS_MASKBIT)
+#define is_64bit_address(control)	(!!(control & PCI_MSI_FLAGS_64BIT))
+#define is_mask_bit_support(control)	(!!(control & PCI_MSI_FLAGS_MASKBIT))
 #define msi_enable(control, num) multi_msi_enable(control, num); \
 	control |= PCI_MSI_FLAGS_ENABLE