From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [patch net-next]alx: Atheros AR8131/AR8151/AR8152/AR8161
 Ethernet driver
Date: Wed, 19 Oct 2011 03:50:00 -0400 (EDT)
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From: "Ren, Cloud" <cjren@qca.qualcomm.com>
Date: Wed, 19 Oct 2011 07:44:02 +0000

> Ok. What logging interfaces can I use? Are they dev_err, dev_info and dev_warn ? thanks

netif_*(), they check netif_msg_*() to see if the particular kind
of logging message is enabled or not, and this can be set dynamically
if you code your driver to properly set netdev->msg_enable.

Use other drivers as examples.