PCI core API pci_dev_id() can be used to get the BDF number for a pci device. We don't need to compose it mannually. Use pci_dev_id() to simplify the code a little bit. Signed-off-by: Xiongfeng Wang <wangxiongfeng2@xxxxxxxxxx> --- drivers/pci/iov.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index b2e8322755c1..25dbe85c4217 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -41,8 +41,7 @@ int pci_iov_vf_id(struct pci_dev *dev) return -EINVAL; pf = pci_physfn(dev); - return (((dev->bus->number << 8) + dev->devfn) - - ((pf->bus->number << 8) + pf->devfn + pf->sriov->offset)) / + return (pci_dev_id(dev) - (pci_dev_id(pf) + pf->sriov->offset)) / pf->sriov->stride; } EXPORT_SYMBOL_GPL(pci_iov_vf_id); -- 2.20.1
