Re: [PATCH 0/9] cxl: explicit DAX driver selection and hotplug

From: Gregory Price

Date: Fri Jan 30 2026 - 12:38:12 EST


On Thu, Jan 29, 2026 at 04:04:33PM -0500, Gregory Price wrote:
> Currently, CXL regions that create DAX devices have no mechanism to
> control select the hotplug online policy for kmem regions at region
> creation time. Users must either rely on a build-time default or
> manually configure each memory block after hotplug occurs.
>

Looks like build regression on configs without hotplug

MMOP_ defines and mhp_get_default_online_type() undefined

Will let this version sit for a bit before spinning a v2

~Gregory