linux-kernel - Re: [PATCH for 3.14] ARM: at91: fix network interface ordering for sama5d36

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Date:	Wed, 12 Mar 2014 08:59:00 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
CC:	"<linux-arm-kernel@...ts.infradead.org> mailing list" 
	<linux-arm-kernel@...ts.infradead.org>,
	Olof Johansson <olof@...om.net>,
	"Arnd Bergmann" <arnd@...db.de>, ARM Maintainers <arm@...nel.org>,
	Boris BREZILLON <b.brezillon.dev@...il.com>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Boris BREZILLON <b.brezillon@...rkiz.com>
Subject: Re: [PATCH for 3.14] ARM: at91: fix network interface ordering for
 sama5d36

On 11/03/2014 21:56, Jean-Christophe PLAGNIOL-VILLARD :
> 
> On Mar 10, 2014, at 10:37 PM, Nicolas Ferre <nicolas.ferre@...el.com> wrote:
> 
>> From: Boris BREZILLON <b.brezillon.dev@...il.com>
>>
>> On the newly introduced sama5d36, Gigabit and 10/100 Ethernet network
>> interfaces are probed in a different order than for the sama5d35.
>> Moreover, users are accustomed to this order in bootloaders and backports
>> for older kernel revisions.
>> So this patch switches DT node order as it is done for the other dual-Ethernet
>> sama5d3 SoC.
>> Better interface numbering which does not depend on DT node order is being
>> developed for stronger interface identification.
> 
> twick ethernet enumerating by playing on the DT order is week

Absolutely, that is what I said in the commit message.

> It’s better to introduce a new property
> 
> linux,ethernet-id or something like or simply rely on other information on the userspace to identify the
> proper interface

We will rely on the alias number ; It's its purpose, after all. I think
that Boris already have a preliminary patch for the macb driver.

Bye,

> Nicolas for AT91 keep me in Cc
> 
> Best Regards,
> J.
>>
>> Signed-off-by: Boris BREZILLON <b.brezillon.dev@...il.com>
>> Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
>> ---
>> Olof, Arnd and Kevin,
>>
>> I would like to include this fix in 3.14-final.
>> I do not have anymore patch for an at91-3.14-fixes branch so I only send this
>> single patch to you. Can you still take it?
>>
>> Thanks, best regards,
>>
>> arch/arm/boot/dts/sama5d36.dtsi | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/sama5d36.dtsi b/arch/arm/boot/dts/sama5d36.dtsi
>> index 6c31c26e6cc0..db58cad6acd3 100644
>> --- a/arch/arm/boot/dts/sama5d36.dtsi
>> +++ b/arch/arm/boot/dts/sama5d36.dtsi
>> @@ -8,8 +8,8 @@
>>  */
>> #include "sama5d3.dtsi"
>> #include "sama5d3_can.dtsi"
>> -#include "sama5d3_emac.dtsi"
>> #include "sama5d3_gmac.dtsi"
>> +#include "sama5d3_emac.dtsi"
>> #include "sama5d3_lcd.dtsi"
>> #include "sama5d3_mci2.dtsi"
>> #include "sama5d3_tcb1.dtsi"
>> -- 
>> 1.8.2.2
>>
>>
>> _______________________________________________
>> linux-arm-kernel mailing list
>> linux-arm-kernel@...ts.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> 
> 

-- 
Nicolas Ferre
--
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