linux-kernel - Re: 2.6.24 breaks BIOS updates on all Dell machines

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Message-ID: <20080129064415.GA8822@suse.de>
Date:	Mon, 28 Jan 2008 22:44:15 -0800
From:	Greg KH <gregkh@...e.de>
To:	Michael E Brown <Michael_E_Brown@...l.com>
Cc:	Jos?? Luis Tall??n <jltallon@...-solutions.net>,
	Douglas_Warzecha@...l.com, Abhay_Salunke@...l.com,
	linux-kernel@...r.kernel.org, matt_domsch@...l.com,
	marcel@...tmann.org
Subject: Re: 2.6.24 breaks BIOS updates on all Dell machines

On Tue, Jan 29, 2008 at 12:32:44AM -0600, Michael E Brown wrote:
> BIOS updates are broken on all Dell systems due to Commit
> 109f0e93b6b728f03c1eb4af02bc25d71b646c59, which is now in 2.6.24.
> 
>   static inline void fw_setup_device_id(struct device *f_dev, struct
> device *dev)
>   {
> -       /* XXX warning we should watch out for name collisions */
> -       strlcpy(f_dev->bus_id, dev->bus_id, BUS_ID_SIZE);
> +       snprintf(f_dev->bus_id, BUS_ID_SIZE, "firmware-%s",
> dev->bus_id);
>  }
> 
> Two programs are broken by this change: 
>     1) dellBiosUpdate, which is part of libsmbios
>     2) All of the Dell Update Packages (DUPs) that are part of Dell
> OpenManage: each BIOS release for each of 3-4 dozen platforms.
> 
> These programs are broken due to the pathname change from
> /sys/class/firmware/dell_rbu/   to
> /sys/class/firmware/firmware-dell_rbu/loading. 
> 
> Realistically, I can fix libsmbios in a couple of weeks, but there is no
> way that we can go back and fix a couple hundred DUP packages for this
> change. If this stays, we are looking at over 6 months before we have an
> officially-available Dell OpenManage that can deal with it, and that
> would be for new BIOS releases only, I suspect.
> 
> Some of the relevant threads from when this was submitted and accepted:
> http://lkml.org/lkml/2005/5/23/73
> http://lkml.org/lkml/2005/5/23/62
> 
> Due to the extremely large and disruptive nature of this bug, it would
> be nice to get a 2.6.24.1 with this patch reverted.
> 
> I have copied the relevant developers at Dell who maintain this driver.
> Please preserve the cc: list when replying.

Fair enough, I have no problem reverting this.

Anyone want to keep it in?

thanks,

greg k-h
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