diff --git a/drivers/pci/msi/msi.h b/drivers/pci/msi/msi.h
index dbeff066bedd..fc92603b33e1 100644
--- a/drivers/pci/msi/msi.h
+++ b/drivers/pci/msi/msi.h
@@ -5,12 +5,12 @@
 
 #define msix_table_size(flags)	((flags & PCI_MSIX_FLAGS_QSIZE) + 1)
 
-extern int pci_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
-extern void pci_msi_teardown_msi_irqs(struct pci_dev *dev);
+int pci_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
+void pci_msi_teardown_msi_irqs(struct pci_dev *dev);
 
 #ifdef CONFIG_PCI_MSI_ARCH_FALLBACKS
-extern int pci_msi_legacy_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
-extern void pci_msi_legacy_teardown_msi_irqs(struct pci_dev *dev);
+int pci_msi_legacy_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
+void pci_msi_legacy_teardown_msi_irqs(struct pci_dev *dev);
 #else
 static inline int pci_msi_legacy_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 {