linux-kernel - Re: [PATCH RFC 2/2] IB/hfi1: Fix port ordering issue in a multiport device

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Message-ID: <20170207091356.GA28400@kroah.com>
Date:   Tue, 7 Feb 2017 10:13:56 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Christoph Hellwig <hch@...radead.org>,
        Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
        Tadeusz Struk <tadeusz.struk@...el.com>,
        linux-rdma@...r.kernel.org, dennis.dalessandro@...el.com,
        linux-kernel@...r.kernel.org, grant.likely@...retlab.ca,
        dledford@...hat.com, ira.weiny@...el.com
Subject: Re: [PATCH RFC 2/2] IB/hfi1: Fix port ordering issue in a multiport
 device

On Mon, Feb 06, 2017 at 01:04:25PM -0800, Christoph Hellwig wrote:
> On Mon, Feb 06, 2017 at 12:26:42PM -0700, Jason Gunthorpe wrote:
> > Still no on this from me, this is a horrible abuse of the device core.
> 
> Seconded.  Netdevice (and thus RDMA) devices names generated by the
> kernel are not stable, period.  Use udev and the MAC / port GUID or
> whatever the OFI equivalent is to generate stable device names.

Thirded :)