On Tue, Apr 16, 2019 at 04:55:21PM +0200, Brice Goglin wrote: > Hello Keith > > Several issues: > > * We always get a memory_side_cache, even if nothing was found in ACPI. > You should at least ignore the cache if size==0? > > * Your code seems to only work with a single level of cache, since > there's a single cache_attrs entry in each target structure. > > * I was getting a section mismatch warning and a crash on PMEM node > hotplug until I applied the patch below. > > WARNING: vmlinux.o(.text+0x47d3f7): Section mismatch in reference from the function hmat_callback() to the function .init.text:hmat_register_target() > The function hmat_callback() references > the function __init hmat_register_target(). > This is often because hmat_callback lacks a __init > annotation or the annotation of hmat_register_target is wrong. > > Thanks > > Brice Oh, thanks for the notice. I'll add multi-level and no-caches into my test, as I had it fixed to one. Will need to respin this series.