linux-kernel - Re: [PATCH] mcb: mcb-pci: Only remap the 1st 0x200 bytes of BAR 0

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Message-ID: <20141215170101.GB2155@kroah.com>
Date:	Mon, 15 Dec 2014 09:01:01 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Johannes Thumshirn <johannes.thumshirn@....de>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Andreas Werner <andreas.werner@....de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mcb: mcb-pci: Only remap the 1st 0x200 bytes of BAR 0

On Mon, Dec 15, 2014 at 02:23:37PM +0100, Johannes Thumshirn wrote:
> On Tue, Oct 28, 2014 at 05:11:32PM +0100, Johannes Thumshirn wrote:
> > Currently it is not possible to have a kernel with built-in MCB attached
> > devices. This results out of the fact that mcb-pci requests PCI BAR 0, then
> > parses the chameleon table and calls the driver's probe function before
> > releasing BAR 0 again. When building the kernel with modules this is not a
> > problem (and therefore it wasn't detected by my tests yet).
> > 
> > A solution is to only remap the 1st 0x200 bytes of a Chameleon PCI device.
> > 0x200 bytes is the maximum size of a Chameleon v2 Table.
> > 
> > Also this patch stops disabling the PCI device on successful registration of MCB
> > devices.
> > 
> > Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....de>
> > Suggested-by: Bjorn Helgaas <bhelgaas@...gle.com>
> 
> Hi Greg,
> 
> Is there any specific reason why you didn't pick this one up for 3.19? Or did it
> just got lost in your queue?
> 

Hm, I didn't realize I was supposed to pick it up, sorry, I'm not listed
as the "mcb" maintainer, you are :)

Please resend and I'll pick it up after 3.19-rc1 is out.

thanks,

greg k-h
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