linux-kernel - Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

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Date:	Fri, 11 Jan 2008 11:14:05 -0800
From:	Greg KH <gregkh@...e.de>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Greg KH <greg@...ah.com>, linux-kernel@...r.kernel.org,
	Jeff Garzik <jeff@...zik.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	inux-pci@...ey.karlin.mff.cuni.cz,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Martin Mares <mj@....cz>, Matthew Wilcox <matthew@....cx>
Subject: Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver
	opt-in

On Fri, Jan 11, 2008 at 11:09:31AM -0800, Arjan van de Ven wrote:
> On Fri, 11 Jan 2008 11:02:29 -0800
> Greg KH <greg@...ah.com> wrote:
> 
> > On Tue, Dec 25, 2007 at 03:26:05AM -0800, Arjan van de Ven wrote:
> > > 
> > > This patch also adds a sysfs property for each device into which
> > > root can write a '1' to enable extended configuration space. The
> > > kernel will print a notice into dmesg when this happens (including
> > > the name of the app) so that if the system crashes as a result of
> > > this action, the user can know what action/tool caused it.
> > 
> > Can you send me a follow-on patch that documents this in
> > Documentation/ABI please.
> > 
> 
> once it's stable enough, say after 1 kernel release, sure

That's what the Documentation/ABI/testing section is for.  If you add
something new, it needs to be documented now, otherwise it will be
forgotten.

thanks,

greg k-h
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