linux-kernel - Re: [BUG 2.6.36-rc5] of_i2c.ko <-> i2c-core.ko dependency loop

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Message-Id: <20100923150559.9c67da11.rdunlap@xenotime.net>
Date:	Thu, 23 Sep 2010 15:05:59 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Mikael Pettersson <mikpe@...uu.se>
Cc:	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [BUG 2.6.36-rc5] of_i2c.ko <-> i2c-core.ko dependency loop

On Thu, 23 Sep 2010 22:16:32 +0200 Mikael Pettersson wrote:

> Randy Dunlap writes:
>  > On Thu, 23 Sep 2010 13:53:18 +0200 Mikael Pettersson wrote:
>  > 
>  > > Running modules_install from a newly built 2.6.36-rc5 kernel
>  > > on my 32-bit PowerMac results in:
>  > > 
>  > > WARNING: Module /lib/modules/2.6.36-rc5/kernel/drivers/i2c/busses/i2c-powermac.ko ignored, due to loop
>  > > WARNING: Loop detected: /lib/modules/2.6.36-rc5/kernel/drivers/i2c/i2c-core.ko needs of_i2c.ko which needs i2c-core.ko again!
>  > > WARNING: Module /lib/modules/2.6.36-rc5/kernel/drivers/i2c/i2c-core.ko ignored, due to loop
>  > > WARNING: Module /lib/modules/2.6.36-rc5/kernel/drivers/i2c/i2c-dev.ko ignored, due to loop
>  > > WARNING: Module /lib/modules/2.6.36-rc5/kernel/drivers/of/of_i2c.ko ignored, due to loop
>  > > WARNING: Module /lib/modules/2.6.36-rc5/kernel/sound/ppc/snd-powermac.ko ignored, due to loop
>  > > 
>  > > > grep '.*I2C.*=' .config
>  > > CONFIG_OF_I2C=m
>  > > CONFIG_I2C=m
>  > > CONFIG_I2C_BOARDINFO=y
>  > > CONFIG_I2C_CHARDEV=m
>  > > CONFIG_I2C_POWERMAC=m
>  > > 
>  > > I can't say exactly when this started, haven't built kernels on this
>  > > box in a while.
>  > 
>  > 
>  > No kconfig warnings?
> 
> Not that I recall.  I can check tomorrow if necessary.

No kconfig warnings.  I checked with your .config file.

>  > Please post your full .config file.

Just a matter of module i2c-core calls of_ functions and module of_i2c calls
i2c_ functions.  Hmph.  Something for Grant, Jean, and Ben to work out.

---
~Randy
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