On Tue, Jul 1, 2014 at 2:32 PM, Thadeu Lima de Souza Cascardo
[off-list ref] wrote:

On Tue, Jul 01, 2014 at 02:33:19AM +0200, Kay Sievers wrote:

quoted

On Mon, Jun 30, 2014 at 10:36 PM, Thadeu Lima de Souza Cascardo
[off-list ref] wrote:

quoted

For network devices on the same PCI function, dev_id should not be used,
since its purpose is for IPv6 support on interfaces with the same MAC
address.

The new dev_port sysfs attribute should be used when it is found. When
it is not, using dev_id might work.

I don't see a problem switching this over, but why would we keep using
dev_id if it is not the right thing to use?

Kay

Because dev_port has only been introduced into Linux 3.15, and some
drivers used dev_id before Linux 3.10. It's not an ideal situation, so I
think it's important to keep some compatibility for the time being. Or
we could simply drop dev_id, and force everyone to do the right thing
and backport dev_port support and fix their drivers.

If this fixes a real issue, I guess it would be nice to push the
dev_port stuff to -stable. If it is accepted it would solve the
backwards compatibility problem, and we could just drop dev_id from
udev.

Cheers,

Tom