From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stanislaw Gruszka Subject: [PATCH v2] net: set default_ethtool_ops in register_netdevice Date: Tue, 8 Jan 2013 16:38:51 +0100 Message-ID: <20130108153850.GA10464@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Eric Dumazet , Ben Greear , =?iso-8859-1?Q?Bj=F8rn?= Mork , linux-wireless@vger.kernel.org, Ben Hutchings , =?utf-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= To: netdev@vger.kernel.org, "David S. Miller" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:40954 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756676Ab3AHPjH (ORCPT ); Tue, 8 Jan 2013 10:39:07 -0500 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Since: commit 2c60db037034d27f8c636403355d52872da92f81 Author: Eric Dumazet Date: Sun Sep 16 09:17:26 2012 +0000 net: provide a default dev->ethtool_ops wireless core does not correctly assign ethtool_ops. In order to fix the problem, move assignement of default_ethtool_ops to register_netdevice(). This is safe because both register_netdevice() and dev_ethtool() are protected by RTNL lock. Patch is besed on hint of Micha=C5=82 Miros=C5=82aw. Signed-off-by: Stanislaw Gruszka Cc: stable@vger.kernel.org # 3.7+ --- v1 -> v2: change order of default_ethtool_ops initialization to avoid the problem. Change the subject accordingly. net/core/dev.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index 515473e..3196820 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5710,6 +5710,8 @@ static int netif_alloc_netdev_queues(struct net_d= evice *dev) return 0; } =20 +static const struct ethtool_ops default_ethtool_ops; + /** * register_netdevice - register a network device * @dev: device to register @@ -5830,6 +5832,8 @@ int register_netdevice(struct net_device *dev) dev->rtnl_link_state =3D=3D RTNL_LINK_INITIALIZED) rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U); =20 + if (!dev->ethtool_ops) + dev->ethtool_ops =3D &default_ethtool_ops; out: return ret; =20 @@ -6119,8 +6123,6 @@ struct netdev_queue *dev_ingress_queue_create(str= uct net_device *dev) return queue; } =20 -static const struct ethtool_ops default_ethtool_ops; - /** * alloc_netdev_mqs - allocate network device * @sizeof_priv: size of private data to allocate space for @@ -6208,8 +6210,6 @@ struct net_device *alloc_netdev_mqs(int sizeof_pr= iv, const char *name, =20 strcpy(dev->name, name); dev->group =3D INIT_NETDEV_GROUP; - if (!dev->ethtool_ops) - dev->ethtool_ops =3D &default_ethtool_ops; return dev; =20 free_all: --=20 1.7.1