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 -- --- Hinweis: unverschlüsselte E-Mails können leicht abgehört und manipuliert werden ! Für eine vertrauliche Kommunikation senden Sie bitte ihren GPG/PGP-Schlüssel zu. --- Enrico Weigelt, metux IT consult Free software and Linux embedded engineering info@xxxxxxxxx -- +49-151-27565287