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SubjectRe: [PATCH 2/3] drivers/base/cpu: crash data showing should depends on KEXEC_CORE
On Thu, Nov 23, 2023 at 03:36:51PM +0800, Baoquan He wrote:
> When below kernel config items are set, compiling error are triggered.
>
> CONFIG_CRASH_CORE=y
> CONFIG_KEXEC_CORE=y
> CONFIG_CRASH_DUMP=y
> CONFIG_CRASH_HOTPLUG=y
>
> ------------------------------------------------------
> drivers/base/cpu.c: In function ‘crash_hotplug_show’:
> drivers/base/cpu.c:309:40: error: implicit declaration of function ‘crash_hotplug_cpu_support’; did you mean ‘crash_hotplug_show’? [-Werror=implicit-function-declaration]
> 309 | return sysfs_emit(buf, "%d\n", crash_hotplug_cpu_support());
> | ^~~~~~~~~~~~~~~~~~~~~~~~~
> | crash_hotplug_show
> cc1: some warnings being treated as errors
> ------------------------------------------------------
>
> CONFIG_KEXEC is used to enable kexec_load interface, the
> crash_notes/crash_notes_size/crash_hotplug showing depends on
> CONFIG_KEXEC is incorrect. It should depend on KEXEC_CORE instead.
>
> Fix it now.

If this error introduced with the prevous patch?
If so, the patches need to be swapped I guess.

> Signed-off-by: Baoquan He <bhe@redhat.com>

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