This patch set introduces three PCI device flag operation helper functions when set pci device PF/VF to assigned or deassigned status also check it. and patch 2,3,4 apply these helper functions to KVM,XEN and PCI. v2: simplify unnecessory ternary operation in function pci_is_dev_assigned(). v3: amend helper function naming. Appreciate suggestion from alex.williamson@xxxxxxxxxx, david.vrabel@xxxxxxxxxx, alexander.h.duyck@xxxxxxxxx BR, Ethan -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html