[PATCH 0/5] riscv: mm: init clean up #ifdefs

Jisheng Zhang jszhang at kernel.org
Thu Dec 2 21:03:12 PST 2021


To support NOMMU, XIP, the arch/riscv/mm/init.c becomes much complex
due to lots of #ifdefs, this not only impacts the code readability,
compile coverage, but may also bring bug. For example, I believe one
recently fixed bug[1] is caused by this issue when merging.

This series tries to clean up unnecessary #ifdefs as much as possible.
Further cleanups may need to refactor the XIP code as Alexandre's patch
does.

[1] http://lists.infradead.org/pipermail/linux-riscv/2021-December/010607.html

Jisheng Zhang (5):
  riscv: mm: init: remove unnecessary "#ifdef CONFIG_CRASH_DUMP"
  riscv: mm: init: try IS_ENABLED(CONFIG_64BIT) instead of #ifdef
  riscv: mm: init: remove _pt_ops and use pt_ops directly
  riscv: mm: init: try IS_ENABLED(CONFIG_XIP_KERNEL) instead of #ifdef
  riscv: mm: init: try best to remove #ifdef CONFIG_XIP_KERNEL usage

 arch/riscv/mm/init.c | 71 +++++++++++++++++---------------------------
 1 file changed, 28 insertions(+), 43 deletions(-)

-- 
2.34.1




More information about the linux-riscv mailing list