smaps: fix defined but not used smaps_shmem_walk_ops

When !CONFIG_SHMEM smaps_shmem_walk_ops is defined but not used,
triggering a compiler warning.  To avoid the warning remove the #ifdef
around the usage.  This has no effect because shmem_mapping() is a stub
returning false when !CONFIG_SHMEM so the code will be compiled out,
however we now need to also provide a stub for shmem_swap_usage().

Link: https://lkml.kernel.org/r/[email protected]
Fixes: 7b86ac3371b7 ("pagewalk: separate function pointers from iterator data")
Signed-off-by: Steven Price <[email protected]>
Reported-by: kernel test robot <[email protected]>
  Link: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Reviewed-by: Jason Gunthorpe <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: Thomas Hellström <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions