linux-kernel - Re: Boot time module loading problem

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Message-Id: <200712232226.00194.mb@bu3sch.de>
Date:	Sun, 23 Dec 2007 22:25:59 +0100
From:	Michael Buesch <mb@...sch.de>
To:	bcm43xx-dev@...ts.berlios.de
Cc:	Larry Finger <larry.finger@...inger.net>,
	LKML <linux-kernel@...r.kernel.org>,
	Johannes Berg <johannes@...solutions.net>
Subject: Re: Boot time module loading problem

On Sunday 23 December 2007 20:39:18 Larry Finger wrote:
> With 2.6.24-rc5, a b43 user reports a problem at bootup. The b43 module, which should be loaded by
> the ssb module, fails with the following type of message:
> 
> ssb: Sonics Silicon Backplane found on PCI device 0000:0c:00.0
> b43: disagrees about version of symbol ssb_device_is_enabled
> b43: Unknown symbol ssb_device_is_enabled
> b43: disagrees about version of symbol ssb_pcicore_dev_irqvecs_enable
> b43: Unknown symbol ssb_pcicore_dev_irqvecs_enable
> b43: disagrees about version of symbol ssb_bus_may_powerdown
> b43: Unknown symbol ssb_bus_may_powerdown

This is a module versioning warning.
I think it's caused by a b43 compiled against a different
kernel tree than the currently running ssb module.
Different may mean that only a tiny little thing was changed, which
might not affect the API at all. modversion will complain then.

I don't use module versioning, so I can't help you how to fix this.
I'd simply suggest turning off module versioning.

-- 
Greetings Michael.
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