linux-kernel - Re: [PATCH 0/5] kexec: fix the incorrect ifdeffery and dependency of CONFIG

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Message-ID: <CAMuHMdWAaM+eJtiVbXXBO0xOmpqhrOiCO5itNsNdTiOxRXVtVw@mail.gmail.com>
Date:   Mon, 11 Dec 2023 09:25:24 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Baoquan He <bhe@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-next@...r.kernel.org,
        loongarch@...ts.linux.dev, kexec@...ts.infradead.org,
        linux-m68k@...ts.linux-m68k.org, linux-mips@...r.kernel.org,
        linux-sh@...r.kernel.org, x86@...nel.org,
        akpm@...ux-foundation.org, eric_devolder@...oo.com,
        sfr@...b.auug.org.au, ignat@...udflare.com
Subject: Re: [PATCH 0/5] kexec: fix the incorrect ifdeffery and dependency of CONFIG_KEXEC

Hi Baoquan,

On Fri, Dec 8, 2023 at 8:43 AM Baoquan He <bhe@...hat.com> wrote:
> Forgot adding kexec to CC, add it now.
>
> On 12/08/23 at 03:30pm, Baoquan He wrote:
> > The select of KEXEC for CRASH_DUMP in kernel/Kconfig.kexec will be
> > dropped, then compiling errors will be triggered if below config
> > items are set:
> >
> > ===
> > CONFIG_CRASH_CORE=y
> > CONFIG_KEXEC_CORE=y
> > CONFIG_CRASH_DUMP=y
> > ===
> >
> > E.g on mips, below link error are seen:
> > --------------------------------------------------------------------
> > mipsel-linux-ld: kernel/kexec_core.o: in function `kimage_free':
> > kernel/kexec_core.c:(.text+0x2200): undefined reference to `machine_kexec_cleanup'
> > mipsel-linux-ld: kernel/kexec_core.o: in function `__crash_kexec':
> > kernel/kexec_core.c:(.text+0x2480): undefined reference to `machine_crash_shutdown'
> > mipsel-linux-ld: kernel/kexec_core.c:(.text+0x2488): undefined reference to `machine_kexec'
> > mipsel-linux-ld: kernel/kexec_core.o: in function `kernel_kexec':
> > kernel/kexec_core.c:(.text+0x29b8): undefined reference to `machine_shutdown'
> > mipsel-linux-ld: kernel/kexec_core.c:(.text+0x29c0): undefined reference to `machine_kexec'
> > --------------------------------------------------------------------
> >
> > Here, change the incorrect dependency of building kexec_core related object
> > files, and the ifdeffery on architectures from CONFIG_KEXEC to
> > CONFIG_KEXEC_CORE.
> >
> > Testing:
> > ========
> > Passed on mips and loognarch with the LKP reproducer.
> >
> > Baoquan He (5):
> >   loongarch, kexec: change dependency of object files
> >   m68k, kexec: fix the incorrect ifdeffery and build dependency of
> >     CONFIG_KEXEC
> >   mips, kexec: fix the incorrect ifdeffery and dependency of
> >     CONFIG_KEXEC
> >   sh, kexec: fix the incorrect ifdeffery and dependency of CONFIG_KEXEC
> >   x86, kexec: fix the wrong ifdeffery CONFIG_KEXEC

I understand this series is v3 of "[PATCH v2] kexec_core: change
dependency of object files"? As this series does not contain a
changelog, can you please summarize what was changed?
Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds