[RFC,0/5] kexec: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef

Message

Jisheng Zhang Dec. 3, 2021, 5:11 a.m. UTC

Replace the conditional compilation using "#ifdef CONFIG_KEXEC_CORE"
by a check for "IS_ENABLED(CONFIG_BLK_DEV_INITRD)", to simplify the
code and increase compile coverage.

I only modifies x86, arm, arm64 and riscv, other arch are not touched.
If the idea is accepted, I will modify all architectures code.

Jisheng Zhang (5):
  kexec: make crashk_res, crashk_low_res and crash_notes symbols always
    visible
  riscv: mm: init: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef
  x86/setup: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef
  arm64: mm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef
  arm: use IS_ENABLED(CONFIG_KEXEC_CORE) instead of #ifdef

 arch/arm/kernel/setup.c |  7 +++----
 arch/arm64/mm/init.c    |  9 +++------
 arch/riscv/mm/init.c    |  6 ++----
 arch/x86/kernel/setup.c | 10 +++-------
 include/linux/kexec.h   | 12 ++++++------
 5 files changed, 17 insertions(+), 27 deletions(-)