Hello Kefeng,

On Fri, Jun 04, 2021 at 03:06:18PM +0800, Kefeng Wang wrote:

Add setup_initial_init_mm() helper, then use it
to cleanup the text, data and brk setup code.

v2:
- change argument from "char *" to "void *" setup_initial_init_mm()
  suggested by Geert Uytterhoeven
- use NULL instead of (void *)0 on h8300 and m68k
- collect ACKs

Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-csky@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-m68k@lists.linux-m68k.org
Cc: openrisc@lists.librecores.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-sh@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Kefeng Wang (15):
  mm: add setup_initial_init_mm() helper
  arc: convert to setup_initial_init_mm()
  arm: convert to setup_initial_init_mm()
  arm64: convert to setup_initial_init_mm()
  csky: convert to setup_initial_init_mm()
  h8300: convert to setup_initial_init_mm()
  m68k: convert to setup_initial_init_mm()
  nds32: convert to setup_initial_init_mm()
  nios2: convert to setup_initial_init_mm()
  openrisc: convert to setup_initial_init_mm()
  powerpc: convert to setup_initial_init_mm()
  riscv: convert to setup_initial_init_mm()
  s390: convert to setup_initial_init_mm()
  sh: convert to setup_initial_init_mm()
  x86: convert to setup_initial_init_mm()

I might be missing something, but AFAIU the init_mm.start_code and other
fields are not used really early so the new setup_initial_init_mm()
function can be called in the generic code outside setup_arch(), e.g in
mm_init().
 

 arch/arc/mm/init.c                 | 5 +----
 arch/arm/kernel/setup.c            | 5 +----
 arch/arm64/kernel/setup.c          | 5 +----
 arch/csky/kernel/setup.c           | 5 +----
 arch/h8300/kernel/setup.c          | 5 +----
 arch/m68k/kernel/setup_mm.c        | 5 +----
 arch/m68k/kernel/setup_no.c        | 5 +----
 arch/nds32/kernel/setup.c          | 5 +----
 arch/nios2/kernel/setup.c          | 5 +----
 arch/openrisc/kernel/setup.c       | 5 +----
 arch/powerpc/kernel/setup-common.c | 5 +----
 arch/riscv/kernel/setup.c          | 5 +----
 arch/s390/kernel/setup.c           | 5 +----
 arch/sh/kernel/setup.c             | 5 +----
 arch/x86/kernel/setup.c            | 5 +----
 include/linux/mm_types.h           | 8 ++++++++
 16 files changed, 23 insertions(+), 60 deletions(-)

-- 
2.26.2


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

-- 
Sincerely yours,
Mike.