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: Jialin Zhang <zhangjialin11@xxxxxxxxxx> --- drivers/dma/ioat/dca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/ioat/dca.c b/drivers/dma/ioat/dca.c index 289c59ed74b9..17f6b6367113 100644 --- a/drivers/dma/ioat/dca.c +++ b/drivers/dma/ioat/dca.c @@ -51,7 +51,7 @@ /* pack PCI B/D/F into a u16 */ static inline u16 dcaid_from_pcidev(struct pci_dev *pci) { - return (pci->bus->number << 8) | pci->devfn; + return pci_dev_id(pci); } static int dca_enabled_in_bios(struct pci_dev *pdev) -- 2.25.1