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Date:	Tue, 14 Nov 2006 16:50:13 +1100
From:	Benjamin Herrenschmidt <>
To:	Len Brown <>
Cc:	Greg KH <>,
	Linux Kernel list <>,
	Andrew Morton <>
Subject: Re: [PATCH 2/2] Use dev_sysdata for ACPI and remove firmware_data

> device.firmware_data was born when we went to link Linux devices
> and ACPI devices using device.platform_data and found it was already used.
> You recommended we create a new field to avoid the conflict, and
> IIR the discussion suggested that eventually device.platform_data use
> would get cleaned up and the fields could perhaps some day be combined.
> I don't know if we are any closer to that day, before or after this change.

I've audited use of platform data and plan to get rid of it too :-)

(Or actually move it to platform_device where it belongs and fix other

> However, I'm fine with Ben's re-name -- it changes no functionality on ACPI-enabled
> systems while potentially deleting an unused pointer/dev on other architectures.
> Please ship his patch #2 along with patch #1 that it depends on.
> Acked-by: Len Brown <>

Excellent, thanks !


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