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Date: Fri, 14 Dec 2018 05:18:02 -0800
From: Christoph Hellwig <hch@infradead.org>
To: Sebastian Ott <sebott@linux.ibm.com>
Subject: Re: [PATCH 2/2] s390/pci: handle function enumeration after sriov
 enablement
Message-ID: <20181214131802.GA13950@infradead.org>
References: <20181212215453.GJ99796@google.com>
 <20181213175428.87520-2-sebott@linux.ibm.com>
 <20181214131245.GB2606@infradead.org>
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Cc: Arnd Bergmann <arnd@arndb.de>, linux-pci@vger.kernel.org,
 Paul Mackerras <paulus@samba.org>, Bjorn Helgaas <helgaas@kernel.org>,
 linuxppc-dev@lists.ozlabs.org
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On Fri, Dec 14, 2018 at 05:12:45AM -0800, Christoph Hellwig wrote:
> On Thu, Dec 13, 2018 at 06:54:28PM +0100, Sebastian Ott wrote:
> > Implement pcibios_sriov_{add|del}_vfs as empty functions. VF
> > creation will be triggered by the hotplug code.
> 
> And instead of having the arch suplply a no-op arch override I
> think it would be better to have the config option just stub it
> out in common code.

Or in fact maybe even a runtime flag in struct pci_dev.  Who knows
if all future s390 PCIe busses will have exactly the same behavior
or if we eventually get the standards compliant behvior back?