cxl/test: Map mock device nodes to an online node

cxl_type3_mem_init() and cxl_type2_mem_init() assign alternating NUMA
nodes to the mock memdevs to model multi-node topologies. On a
single-node host node 1 has no pgdat, and the first node-aware
allocation in an odd device's probe faults on a NULL zonelist:

  Oops: general protection fault, probably for non-canonical address 0xdffffc00000006e3
  KASAN: probably user-memory-access in range [0x0000000000003718-0x000000000000371f]
  Workqueue: async async_run_entry_fn
  RIP: __alloc_frozen_pages_noprof+0x288
   new_slab
   ___slab_alloc
   __kmalloc_node_track_caller_noprof
   devm_kmalloc
   cxl_mock_mem_probe

Map the requested node to an online one, as dax_hmem already does
for its target node.

Fixes: cf1f6877b088 ("cxl/memdev: Add numa_node attribute")
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Tested-by: Shaikh Kamaluddin <shaikhkamal2012@gmail.com>
Reviewed-by: Gregory Price (Meta) <gourry@gourry.net>
Link: https://patch.msgid.link/20260831175119.3247915-1-dave@stgolabs.net
Signed-off-by: Dave Jiang <dave.jiang@intel.com>

0 files changed, 0 insertions, 0 deletions