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Re: Compilation fails with CONFIG_DEBUG_SPINLOCK

To: linux-mips@linux-mips.org
Subject: Re: Compilation fails with CONFIG_DEBUG_SPINLOCK
From: Thomas Petazzoni <thomas.petazzoni@enix.org>
Date: Mon, 18 Oct 2004 12:03:57 +0200
In-reply-to: <20041013092057.GQ11236@enix.org>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20041013092057.GQ11236@enix.org>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.4i
Hello,

Any advices to fix this problem ?

Thanks,

Thomas

On Wed, Oct 13, 2004 at 11:20:57AM +0200, Thomas Petazzoni wrote :
> Hello,
> 
> With the last CVS, if you check CONFIG_DEBUG_SPINLOCK, the compilation
> fails :
> 
> arch/mips/kernel/built-in.o(.text+0x2e84): In function `probe_irq_on':
> : undefined reference to `atomic_lock'
> arch/mips/kernel/built-in.o(.text+0x2e88): In function `probe_irq_on':
> : undefined reference to `atomic_lock'
> arch/mips/kernel/built-in.o(.text+0x2e90): In function `probe_irq_on':
> : undefined reference to `atomic_lock'
> arch/mips/kernel/built-in.o(.text+0x2e94): In function `probe_irq_on':
> : undefined reference to `atomic_lock'
> arch/mips/kernel/built-in.o(.text+0x2ebc): In function `probe_irq_on':
> : undefined reference to `atomic_lock'
> arch/mips/kernel/built-in.o(.text+0x2ec0): more undefined references
> to `atomic_lock' follow
> make: *** [.tmp_vmlinux1] Error 1
> 
> Some macros in include/asm/atomic.h uses a spinlock called
> atomic_lock. An "extern" definition is made at the top of the file,
> but the real spinlock is not defined anywhere.
> 
> I think this is trivial to fix, but I'm not sure what is the right
> place to declare the spin lock and to initialize it.
> 
> Thomas
> -- 
> PETAZZONI Thomas - thomas.petazzoni@enix.org 
> http://thomas.enix.org - Jabber: kos_tom@sourcecode.de
> KOS: http://kos.enix.org/ - Lolut: http://lolut.utbm.info
> Fingerprint : 0BE1 4CF3 CEA4 AC9D CC6E  1624 F653 CB30 98D3 F7A7

-- 
PETAZZONI Thomas - thomas.petazzoni@enix.org 
http://thomas.enix.org - Jabber: kos_tom@sourcecode.de
KOS: http://kos.enix.org/ - Lolut: http://lolut.utbm.info
Fingerprint : 0BE1 4CF3 CEA4 AC9D CC6E  1624 F653 CB30 98D3 F7A7

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