diff --git a/include/linux/pci.h b/include/linux/pci.h
index 086a0e5..acb9387 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -560,6 +560,7 @@
 void __iomem __must_check *pci_map_rom_copy(struct pci_dev *pdev, size_t *size);
 void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom);
 void pci_remove_rom(struct pci_dev *pdev);
+size_t pci_get_rom_size(void __iomem *rom, size_t size);
 
 /* Power management related routines */
 int pci_save_state(struct pci_dev *dev);