On Tue, Jun 02, 2020 at 04:26:02PM -0700, Rajat Jain wrote: > +static bool risky_device(struct pci_dev *pdev) > +{ > + if (pdev->untrusted) { > + pci_warn(pdev, > + "Skipping IOMMU quirk for dev (%04X:%04X) on untrusted" > + " PCI link. Please check with your BIOS/Platform" > + " vendor about this\n", pdev->vendor, pdev->device);
You should not break user visible strings like this. It makes grepping for them harder (see also CodingStyle). You can write it like this instead: pci_info(pdev, "Skipping IOMMU quirk for dev (%04X:%04X) on untrusted PCI link\n", pdev->vendor, pdev->device); pci_info(pdev, "Please check with your BIOS/Platform vendor about this\n"); Also I guess pci_info() might be better here after all. Your call :) Rest of the patch looks good to me.