linux-kernel - Re: [PATCH 1/1] net: core: 'ethtool' issue with querying phy settings

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Message-ID: <556CF06F.7040402@broadcom.com>
Date:	Mon, 1 Jun 2015 16:53:19 -0700
From:	Arun Parameswaran <aparames@...adcom.com>
To:	David Miller <davem@...emloft.net>
CC:	<ben@...adent.org.uk>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<bcm-kernel-feedback-list@...adcom.com>, <rjui@...adcom.com>,
	<sbranden@...adcom.com>, <jdzheng@...adcom.com>
Subject: Re: [PATCH 1/1] net: core: 'ethtool' issue with querying phy settings

On 15-06-01 02:46 PM, David Miller wrote:
> From: Arun Parameswaran <aparames@...adcom.com>
> Date: Mon, 1 Jun 2015 14:41:43 -0700
> 
>> It would be nice for the 'ethtool' to be flexible to support querying
>> specific PHY irrespective of the net implementation, but that is being
>> discussed in the other thread.
> 
> Please stop arguing about this, it isn't valid.
> 
> Your device is a switch, and therefore needs to be represented properly
> with the proper number of net_device objects.
> 
> Even more importantly, the ethtool API is established and you cannot
> change these semantics without potentially breaking lots of applications
> and libraries out there.
> 
> Your change is reverted, and I will absolutely not entertain any
> attempt to again change the semantics of this ethtool operation.
> 
> Thanks.
> 
I apologize if the patch broke any conventions, it was not my intend. I
understand the implications on other programs that use the interface.

Just so that I don’t make this mistake in the future and to understand this
better, does this mean that the 'phyad' parameter specified in the
'ethtool' command line is ignored ?

Thanks
Arun
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