[PATCH 01/12] mm: Remove PFN_MAP, PFN_SG_CHAIN and PFN_SG_LAST

[Jason Gunthorpe]

On Thu, May 29, 2025 at 04:32:02PM +1000, Alistair Popple wrote:
> The PFN_MAP flag is no longer used for anything, so remove it. The
> PFN_SG_CHAIN and PFN_SG_LAST flags never appear to have been used so
> also remove them.
> 
> Signed-off-by: Alistair Popple <apopple at nvidia.com>
> Reviewed-by: Christoph Hellwig <hch at lst.de>
> ---
>  include/linux/pfn_t.h             | 31 +++----------------------------
>  mm/memory.c                       |  2 --
>  tools/testing/nvdimm/test/iomap.c |  4 ----
>  3 files changed, 3 insertions(+), 34 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>

Jason