On 08.12.20 03:36, Jason Wang wrote:

Hi,

So we endup with two solutions (without a prompt):

1) using select, user may end up with driver without transport

IMHO not an entirely unusual situation in other places of the kernel,
eg. one can enable USB devices, w/o having an usb host adapter enabled.

And even if some USB-HA driver is enabled, the actualy machine doesn't
necessarily have the corresponding device.

2) using depends, user need to enable at least one transport

2) looks a little bit better I admit.

So, all virtio devices should depend on TRANSPORT_A || TRANSPORT_B ||
TRANSPORT_C || ... ? (and also change all these places if another
transport is added) ?

--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
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