netdev - Re: [net v2] gianfar: Fix Tx flow control deactivation

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Message-Id: <20170905.143543.1026660660946884756.davem@davemloft.net>
Date:   Tue, 05 Sep 2017 14:35:43 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     claudiu.manoil@....com
Cc:     netdev@...r.kernel.org
Subject: Re: [net v2] gianfar: Fix Tx flow control deactivation

From: Claudiu Manoil <claudiu.manoil@....com>
Date: Mon, 4 Sep 2017 10:45:28 +0300

> The wrong register is checked for the Tx flow control bit,
> it should have been maccfg1 not maccfg2.
> This went unnoticed for so long probably because the impact is
> hardly visible, not to mention the tangled code from adjust_link().
> First, link flow control (i.e. handling of Rx/Tx link level pause frames)
> is disabled by default (needs to be enabled via 'ethtool -A').
> Secondly, maccfg2 always returns 0 for tx_flow_oldval (except for a few
> old boards), which results in Tx flow control remaining always on
> once activated.
> 
> Fixes: 45b679c9a3ccd9e34f28e6ec677b812a860eb8eb ("gianfar: Implement PAUSE frame generation support")
> 
> Signed-off-by: Claudiu Manoil <claudiu.manoil@....com>

Please do not put an empty line between Fixes: and other tags.  All tags
are equal and should be in one uninterrupted block of text.

Applied, and queued up for -stable, thanks.