linux-kernel - Re: [PATCH] net: lpc_eth: Fix crash on ip link up

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Message-Id: <20140902.132217.1247025622945425190.davem@davemloft.net>
Date:	Tue, 02 Sep 2014 13:22:17 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	stigge@...com.de
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: lpc_eth: Fix crash on ip link up

From: stigge@...com.de
Date: Mon,  1 Sep 2014 13:46:46 +0200

> From: Roland Stigge <stigge@...com.de>
> 
> When a link is already up, the following sequence makes the kernel
> block completely:
> 
>   ip link set dev eth0 down
>   ip link set dev eth0 up
> 
> This is because on suspended phy, the following lines
> 
>   __lpc_eth_reset(pldat);
>   __lpc_eth_init(pldat);
> 
> make the LPC ethernet core block (see LPC32x0 manual). The PHY needs to be
> (re-)activated low-level first.
> 
> Signed-off-by: Roland Stigge <stigge@...com.de>

Applied, thanks.
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