linux-kernel - Re: build breakage -- paravirt_{alloc,free}

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Message-ID: <20090112111827.GB18265@elte.hu>
Date:	Mon, 12 Jan 2009 12:18:27 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	linux-kernel@...r.kernel.org,
	Jaswinder Singh Rajput <jaswinderrajput@...il.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: build breakage -- paravirt_{alloc,free}_ldt


* Jiri Kosina <jkosina@...e.cz> wrote:

> On Mon, 12 Jan 2009, Ingo Molnar wrote:
> 
> > > with Linus' tree (ae04d14015) doesn't build for me with
> > > 
> > > arch/x86/kernel/ldt.c: In function 'alloc_ldt':
> > > arch/x86/kernel/ldt.c:55: error: implicit declaration of function 'paravirt_alloc_ldt'
> > > arch/x86/kernel/ldt.c:79: error: implicit declaration of function 'paravirt_free_ldt'
> > > 
> > > Config on http://www.jikos.cz/jikos/junk/.config
> > 
> > hm, it builds fine here with your config. Did .28 build fine for you? The 
> > only change to this file since .28 has been Jaswinder's "423a540: x86: 
> > ldt.c fix style problems".
> 
> Puzzled. On one system, I still get this build error even after make 
> mrpoper (I use this machine to build kernel routinely, so it certainly 
> didn't happen a few days ago).
> 
> But I just tried on different system, and there is builds flawlessly. 
> It's gcc 4.3.1 vs 4.3.2. I will check a little bit more.

beyond mrproper you might want to try 'git checkout HEAD . -f' as well, to 
get a forced checkout of the current working tree. Should there be any 
corruption in any of the source code files this will get rid of it.

	Ingo
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