Re: FAILED: patch "[PATCH] cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM" failed to apply to 4.9-stable tree

On Mon, Feb 04, 2019 at 06:52:23AM +0100, gregkh@linuxfoundation.org wrote:

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

This backport isn't trivial, because 4.9 is missing sched_smt_active(), so I think we should just drop it.