linux-kernel - Re: [RFC PATCH 3/3] net: dsa: exit probe if no switch were found

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Message-ID: <560E744E.4010502@baylibre.com>
Date:	Fri, 2 Oct 2015 14:10:54 +0200
From:	Neil Armstrong <narmstrong@...libre.com>
To:	Andrew Lunn <andrew@...n.ch>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Jesper Dangaard Brouer <brouer@...hat.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 3/3] net: dsa: exit probe if no switch were found

On 10/01/2015 06:32 PM, Andrew Lunn wrote:
> On Thu, Oct 01, 2015 at 05:27:32PM +0200, Neil Armstrong wrote:
>> On 09/30/2015 10:21 AM, Neil Armstrong wrote:
>>> If no switch were found in dsa_setup_dst, return -ENODEV and
>>> exit the dsa_probe cleanly.
> 
> ...
>  
>> Couldn't we use the probe defer mechanism here ? (until complete rework is done)
> 
> Hi Neil
> 
> I was thinking the same last night. We know the switch should be
> there, otherwise it would not be in DT. So returning -EPROBE_DEFER
> would be valid.
> 
>       Andrew
> 
Hi,

It makes sens but does a module insertion triggers the differed probe ?

I will still post this change in a next set of patch.

Neil
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