linux-kernel - Re: [BISECTED] ipmi_si not loading since 2.6.39

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Message-ID: <4F92004F.70905@calxeda.com>
Date:	Fri, 20 Apr 2012 19:33:19 -0500
From:	Rob Herring <rob.herring@...xeda.com>
To:	Nikola Ciprich <nikola.ciprich@...uxbox.cz>
CC:	linux-kernel@...r.kernel.org, minyard@....org
Subject: Re: [BISECTED] ipmi_si not loading since 2.6.39

On 04/20/2012 05:38 PM, Nikola Ciprich wrote:
> Hello,
> 
> I was trying to find out why IPMI stopped working on new kernels. Since 2.6.39
> module loading ends with following message:
> 
>  ipmi_si: Interface detection failed
> 
> Then ipmitool is unable to control IPMI device. 
> 
> Works for 2.6.38, doesn't work for 2.6.39, 3.0.28, 3.4-rc1.
> 
> I got this bisected to following commit:
> 
> commit a1e9c9dd3383e6a1a762464ad604b1081774dbda
> Author: Rob Herring <rob.herring@...xeda.com>
> Date:   Wed Feb 23 15:37:59 2011 -0600
> 
>     ipmi: convert OF driver to platform driver
>     
>     of_bus is deprecated in favor of the plain platform bus. This patch
>     merges the ipmi OF driver with the existing platform driver.
>     
>     CONFIG_PPC_OF occurrances are removed or replaced with CONFIG_OF.
>     
>     Compile tested with and without CONFIG_OF. Tested OF probe and
>     default probe cases.
>     
>     Signed-off-by: Rob Herring <rob.herring@...xeda.com>
>     Signed-off-by: Grant Likely <grant.likely@...retlab.ca>
> 
> I wonder whether this is a bug, or I'm doing something wrong?
> 

It has been working for me as a module in the DT case.

This driver has several init paths with acpi, pci, fixed standard
addresses, and device tree. Can you provide some details on your h/w and
kernel log of working the working case.

Rob


> Thanks in advance!
> 
> with best regards
> 
> nik
> 
> 
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