Re: [PATCH v1 4/7] pc-bios/s390-ccw: Add support for virtio-net-pci IPL

[Eric Farman <farman@linux.ibm.com>]

On 8/31/26 2:36 PM, Zhuoying Cai wrote:
> One thing worth noting is that virtio_net_init() calls virtio_*_setup(),
> which performs virtio_is_supported() as its first step. However, the
> return value of virtio_*_setup() is currently ignored in
> virtio_net_init(). This is pre-existing behavior and applies to both the
> CCW and PCI paths. If setup fails, execution still proceeds to MAC
> negotiation and buffer allocation.
> 
> Since we are removing the network-specific setup from the PCI path,
> would it make sense to also fix virtio_net_init() to check and propagate
> the return value of virtio_*_setup()? The error is already reported by
> virtio_*_setup(), but execution currently continues into MAC negotiation
> and buffer allocation even when device initialization has failed.

Yes, I would recommend making that change here as well, just as Jared is 
doing in the virtio-scsi path.