Comment 3 for bug 1812123

b5679cebf780 ("vmbus: fix subchannel removal") seems to be a fix to ae6935ed7d42 ("vmbus: split ring buffer allocation from open"), which we currently don't have in the azure kernel. Is it really necessary and we should pick ae6935ed7d42 as well, or is it possible to skip it?

If it's necessary I can provide a test kernel with just 5e3c420dcca5 ("uio_hv_generic: set callbacks on open") and its dependencies.