linux-kernel - [PATCH 0/3] kernel/Kconfig.kexec: drop select of KEXEC for CRASH

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Message-ID: <20231123073652.507034-1-bhe@redhat.com>
Date:   Thu, 23 Nov 2023 15:36:49 +0800
From:   Baoquan He <bhe@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     kexec@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org,
        linux-s390@...r.kernel.org, akpm@...ux-foundation.org,
        ignat@...udflare.com, eric_devolder@...oo.com,
        Baoquan He <bhe@...hat.com>
Subject: [PATCH 0/3] kernel/Kconfig.kexec: drop select of KEXEC for CRASH_DUMP

Ignat reported a potential config regression was introduced by
commit 89cde455915f ("kexec: consolidate kexec and crash options
into kernel/Kconfig.kexec"). Please click below link for more details:

https://lore.kernel.org/all/CALrw=nHpRQQaQTP_jZfREgrQEMpS8jBF8JQCv4ygqXycE-StaA@mail.gmail.com/T/#u

The patch 1 fix the regression by removing incorrect CONFIG_KEXEC
ifdeffery scope adding in arm's <asm/kexec.h>, then dropping the
select of KEXEC for CRASH_DUMP. This is tested and passed a cross
comiping of arm.

Patch 2 is to fix a build failure when I tested patch 1 on x86_64, the
wrong CONFIG_KEXEC iddeffery is replaced with CONFIG_KEXEC_CORE. Test
passed on x86_64.

Patch 3 is to fix an unnecessary 'select KEXEC' in s390 ARCH. Removing
the select won't impact anything. Test passed on a ibm-z system.

Baoquan He (3):
  kernel/Kconfig.kexec: drop select of KEXEC for CRASH_DUMP
  drivers/base/cpu: crash data showing should depends on KEXEC_CORE
  s390/Kconfig: drop select of KEXEC

 arch/arm/include/asm/kexec.h | 4 ----
 arch/s390/Kconfig            | 1 -
 drivers/base/cpu.c           | 6 +++---
 kernel/Kconfig.kexec         | 1 -
 4 files changed, 3 insertions(+), 9 deletions(-)

-- 
2.41.0