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The x86 implementation of range-to-target_node lookup (i.e. phys_to_target_node() and memory_add_physaddr_to_nid()) relies on numa_memblks. Since numa_memblks are now part of the generic code, move these functions from x86 to mm/numa_memblks.c and select CONFIG_NUMA_KEEP_MEMINFO when CONFIG_NUMA_MEMBLKS=y for dax and cxl. [[email protected]: fix build] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Mike Rapoport (Microsoft) <[email protected]> Reviewed-by: Jonathan Cameron <[email protected]> Tested-by: Zi Yan <[email protected]> # for x86_64 and arm64 Tested-by: Jonathan Cameron <[email protected]> [arm64 + CXL via QEMU] Reviewed-by: Dan Williams <[email protected]> Acked-by: David Hildenbrand <[email protected]> Cc: Alexander Gordeev <[email protected]> Cc: Andreas Larsson <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Christophe Leroy <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: David S. Miller <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Huacai Chen <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiaxun Yang <[email protected]> Cc: John Paul Adrian Glaubitz <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Rafael J. Wysocki <[email protected]> Cc: Rob Herring (Arm) <[email protected]> Cc: Samuel Holland <[email protected]> Cc: Thomas Bogendoerfer <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Vasily Gorbik <[email protected]> Cc: Will Deacon <[email protected]> Signed-off-by: Andrew Morton <[email protected]>