From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] net: lpc_eth: Fix crash on ip link up Date: Tue, 02 Sep 2014 13:22:17 -0700 (PDT) Message-ID: <20140902.132217.1247025622945425190.davem@davemloft.net> References: <1409572006-26876-1-git-send-email-stigge@antcom.de> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: stigge@antcom.de Return-path: In-Reply-To: <1409572006-26876-1-git-send-email-stigge@antcom.de> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: stigge@antcom.de Date: Mon, 1 Sep 2014 13:46:46 +0200 > From: Roland Stigge > > 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 Applied, thanks.