PCI/IOV: Use pci_dev_id() to simplify the code
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>
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@ -41,8 +41,7 @@ int pci_iov_vf_id(struct pci_dev *dev)
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return -EINVAL;
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return -EINVAL;
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pf = pci_physfn(dev);
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pf = pci_physfn(dev);
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return (((dev->bus->number << 8) + dev->devfn) -
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return (pci_dev_id(dev) - (pci_dev_id(pf) + pf->sriov->offset)) /
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((pf->bus->number << 8) + pf->devfn + pf->sriov->offset)) /
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pf->sriov->stride;
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pf->sriov->stride;
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}
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}
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EXPORT_SYMBOL_GPL(pci_iov_vf_id);
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EXPORT_SYMBOL_GPL(pci_iov_vf_id);
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