From: Manish Honap <[email protected]> A CXL Type-2 device is also a valid plain vfio-pci device. If the vfio-cxl provider cannot bring it up as Type-2, failing the bind would regress a device that previously worked as plain vfio-pci.
Make a non-deferred CXL init failure non-fatal: log it, drop the provider reference, leave cxl_ops NULL, and continue driving the device as plain vfio-pci. The -EPROBE_DEFER path added earlier still retries rather than falling back. Assisted-by: LLM Signed-off-by: Manish Honap <[email protected]> --- drivers/vfio/pci/vfio_pci_core.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c index a63a4f5228b8..9a75c30b67e2 100644 --- a/drivers/vfio/pci/vfio_pci_core.c +++ b/drivers/vfio/pci/vfio_pci_core.c @@ -2271,9 +2271,17 @@ static int vfio_pci_core_cxl_init(struct vfio_pci_core_device *vdev) vfio_pci_put_cxl_ops(ops); return ret; } + /* + * Any other failure is non-fatal: a CXL device that cannot be brought + * up as Type-2 still works as plain vfio-pci, so log and continue + * rather than failing the bind. + */ if (ret) { + pci_warn(vdev->pdev, + "CXL init failed (%d), continuing as plain vfio-pci\n", + ret); vfio_pci_put_cxl_ops(ops); - return ret; + return 0; } vdev->cxl_ops = ops; -- 2.25.1
