netdev - Re: [patch 1/4] drivers/net/ethernet/ibm/ehea/ehea_main.c: add alias entry for portN properties

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Message-ID: <20130916205543.GA14221@oc0268524204.ibm.com>
Date:	Mon, 16 Sep 2013 17:55:43 -0300
From:	Thadeu Lima de Souza Cascardo <cascardo@...ux.vnet.ibm.com>
To:	David Miller <davem@...emloft.net>
Cc:	akpm@...ux-foundation.org, netdev@...r.kernel.org,
	ohering@...e.com, jeffm@...e.com, jslaby@...e.cz
Subject: Re: [patch 1/4] drivers/net/ethernet/ibm/ehea/ehea_main.c: add alias
 entry for portN properties

On Fri, Sep 13, 2013 at 07:58:57PM -0400, David Miller wrote:
> From: akpm@...ux-foundation.org
> Date: Fri, 13 Sep 2013 14:52:01 -0700
> 
> > From: Olaf Hering <ohering@...e.com>
> > Subject: drivers/net/ethernet/ibm/ehea/ehea_main.c: add alias entry for portN properties
> > 
> > Use separate table for alias entries in the ehea module, otherwise the
> > probe() function will operate on the separate ports instead of the
> > lhea-"root" entry of the device-tree
> > 
> > Addresses https://bugzilla.novell.com/show_bug.cgi?id=435215
> > 
> > Signed-off-by: Jeff Mahoney <jeffm@...e.com>
> > Signed-off-by: Olaf Hering <ohering@...e.com>
> > Signed-off-by: Jiri Slaby <jslaby@...e.cz>
> > Cc: Thadeu Lima de Souza Cascardo <cascardo@...ux.vnet.ibm.com>
> > Cc: "David S. Miller" <davem@...emloft.net>
> > Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> 
> This can definitely have consequences and in particular potentially cause
> a device to not get probed properly.
> 
> Therefore I want an ehea driver maintainer to review and ACK this before
> I apply it.
> 
> Thanks.
> 

After taking a glance at the patch, it doesn't seem to change probing,
since it keeps the same table for the driver itself. It seems this only
changes alias, so the driver will be loaded under some device-tree
layouts not currently matched by the current alias.

That last part is the one that bothers me. I still need to find a system
where the current modalias won't work and this patch is needed. I'll see
if I can put more effort into that and find a system as described in the
bug.

Regards.
Thadeu Cascardo.

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