linux-kernel - Re: Regression due to "PCI: Do not allocate more buses than available in parent"

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Message-ID: <20180115104316.k7xsu3qnnmzvlkpd@earth.universe>
Date:   Mon, 15 Jan 2018 11:43:16 +0100
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Fabio Estevam <festevam@...il.com>
Cc:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-pci@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Ian Ray <ian.ray@...com>, Nandor Han <nandor.han@...com>
Subject: Re: Regression due to "PCI: Do not allocate more buses than
 available in parent"

Hi Fabio,

On Fri, Jan 12, 2018 at 01:17:26PM -0200, Fabio Estevam wrote:
> Hi Sebastian,
> 
> On Fri, Jan 12, 2018 at 1:07 PM, Sebastian Reichel
> <sebastian.reichel@...labora.co.uk> wrote:
> > Hi,
> >
> > I have an ARM/DT based system [0], that no longer finds its ethernet cards
> > behind a PCIe switch. I bisected the problem and ended up on
> > a20c7f36bd3d. I tried providing some space using the suggested "pci=hpbussize=<N>",
> > but it does not seem to work.
> >
> > I added dmesg for working, broken and broken + parameter below. At
> > the moment I would say this is a regression and the commit should be
> > reverted.
> 
> Does this patch fix the problem?
> https://patchwork.ozlabs.org/patch/857566/

Yes, that fixes the issue. Thanks for the hint.

-- Sebastian

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