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

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When we have a struct pci_dev *, use pci_dev_id() instead of manually
composing the ID with PCI_DEVID() from dev->bus->number and dev->devfn.

[bhelgaas: commit log]
Link: https://lore.kernel.org/r/20230807134858.116051-4-wangxiongfeng2@huawei.com
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Xiongfeng Wang 2023-08-07 21:48:58 +08:00 committed by Bjorn Helgaas
parent f7f7c3d615
commit 6f7dc30767
1 changed files with 1 additions and 2 deletions
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3
drivers/pci/iov.c
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@ -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);