linux-kernel - Re: [PATCH 09/13] purgatory: Core purgatory functionality

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Message-ID: <20140613101713.GD4751@pd.tnic>
Date:	Fri, 13 Jun 2014 12:17:13 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	linux-kernel@...r.kernel.org, kexec@...ts.infradead.org,
	ebiederm@...ssion.com, hpa@...or.com, mjg59@...f.ucam.org,
	greg@...ah.com, jkosina@...e.cz, dyoung@...hat.com,
	chaowang@...hat.com, bhe@...hat.com, akpm@...ux-foundation.org
Subject: Re: [PATCH 09/13] purgatory: Core purgatory functionality

On Fri, Jun 06, 2014 at 03:51:04PM -0400, Vivek Goyal wrote:
> On Thu, Jun 05, 2014 at 10:05:23PM +0200, Borislav Petkov wrote:
> 
> [..]
> > > @@ -249,6 +254,7 @@ archclean:
> > >  	$(Q)rm -rf $(objtree)/arch/x86_64
> > >  	$(Q)$(MAKE) $(clean)=$(boot)
> > >  	$(Q)$(MAKE) $(clean)=arch/x86/tools
> > 
> > ifeq ($(CONFIG_KEXEC),y)
> > 	$(Q)$(MAKE) $(clean)=arch/x86/purgatory
> > endif
> 
> Hmm.., is it strictly required? I am wondering what happens if I build
> a kernel with CONFIG_KEXEC=y, then set CONFIG_KEXEC=n and do "make clean".

Try it - it works here.

> I think I will still like any files in arch/x86/purgatory to be cleaned
> despite the fact that CONFIG_KEXEC=n. Isn't it?

Yep, that works. Conversely, we don't want people who haven't enabled
KEXEC ever to have unrelated cleanup delay.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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