6.1 kernel is missing CONFIG_VIRTIO_MEM (was present in 5.10)

["DERUMIER, Alexandre" <alexandre.derumier@groupe-cyllene.com>]

Hi,

It seem than virtio_mem module is not present in 6.1 config (It's a
feature to have better memory hotplug/unplug with qemu-kvm)

cat /boot/config-6.1.0-9-amd64 |grep VIRTIO_MEM
# CONFIG_VIRTIO_MEM is not set


Looking in 5.10 package, the dynamic module is set

cat /boot/config-5.10.0-18-amd64 |grep VIRTIO_MEM
CONFIG_VIRTIO_MEM=m


Could it be possible to re-add it ?



BTW, for my personal culture,
I have looked in salsa git history, but I don't have found any
reference about CONFIG_VIRTIO_MEM in bullseye branch, so how is it
possible that the module was enabled on 5.10 ?


Regards,

Alexandre Derumier