diff mbox series

[3/3] PCI/IOV: Use pci_dev_id() to simplify the code

Message ID 20230807134858.116051-4-wangxiongfeng2@huawei.com
State New
Headers show
Series PCI: Use pci_dev_id() to simplify the code | expand

Commit Message

Xiongfeng Wang Aug. 7, 2023, 1:48 p.m. UTC 
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@huawei.com>
---
 drivers/pci/iov.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff mbox series

Patch

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);