dma_devfn         124 drivers/tty/serial/8250/8250_lpss.c 	unsigned int dma_devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0);
dma_devfn         125 drivers/tty/serial/8250/8250_lpss.c 	struct pci_dev *dma_dev = pci_get_slot(pdev->bus, dma_devfn);