Re: [PATCH 2/3] drivers/base/cpu: crash data showing should depends on KEXEC_CORE

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On 11/23/23 at 03:13pm, Alexander Gordeev wrote:
> 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.

>From the phenomenon, yes. In fact it's the patch 1 which exposes
the wrong ifdeffery. I can shift the order in v2. Thanks.

> 
> > Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
> 


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