Christophe Leroy [off-list ref] writes:

Several files in arch/powerpc/mm are only for book3S32. This patch
creates a subdirectory for them.

Signed-off-by: Christophe Leroy <redacted>
---
 arch/powerpc/mm/Makefile                            | 3 +--
 arch/powerpc/mm/book3s32/Makefile                   | 6 ++++++
 arch/powerpc/mm/{ => book3s32}/hash_low_32.S        | 0
 arch/powerpc/mm/{ => book3s32}/mmu_context_hash32.c | 0
 arch/powerpc/mm/{ => book3s32}/ppc_mmu_32.c         | 0
 arch/powerpc/mm/{ => book3s32}/tlb_hash32.c         | 0
 6 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 arch/powerpc/mm/book3s32/Makefile
 rename arch/powerpc/mm/{ => book3s32}/hash_low_32.S (100%)
 rename arch/powerpc/mm/{ => book3s32}/mmu_context_hash32.c (100%)
 rename arch/powerpc/mm/{ => book3s32}/ppc_mmu_32.c (100%)
 rename arch/powerpc/mm/{ => book3s32}/tlb_hash32.c (100%)

I shortened them to:

  arch/powerpc/mm/{hash_low_32.S => book3s32/hash_low.S}
  arch/powerpc/mm/{ppc_mmu_32.c => book3s32/mmu.c}
  arch/powerpc/mm/{mmu_context_hash32.c => book3s32/mmu_context.c}
  arch/powerpc/mm/{tlb_hash32.c => book3s32/tlb.c}

cheers