linux-kernel - Re: Please revert 928bea964827d7824b548c1f8e06eccbbc4d0d7d

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Date:	Sat, 28 Sep 2013 08:38:00 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: Re: Please revert 928bea964827d7824b548c1f8e06eccbbc4d0d7d

On Fri, 2013-09-27 at 14:54 -0700, Yinghai Lu wrote:
> On Fri, Sep 27, 2013 at 2:46 PM, Benjamin Herrenschmidt
> <benh@...nel.crashing.org> wrote:
> 
> > Wouldn't it be better to simply have pci_enable_device() always set bus
> > master on a bridge? I don't see any case where it makes sense to have
> > an enabled bridge without the master bit set on it...
> 
> Do you mean attached?

So this patch works and fixes the problem. I think it makes the whole
thing more robust and should be applied.

I still don't know why the bridge doesn't get enabled properly without
it yes, tracking it down (the machine in question takes a LONG time to
reboot :-)

Cheers,
Ben.


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