path: root/net
diff options
authorStanislaw Gruszka <sgruszka@redhat.com>2013-01-10 23:19:10 +0000
committerDavid S. Miller <davem@davemloft.net>2013-01-11 15:55:48 -0800
commitd07d7507bfb4e23735c9b83e397c43e1e8a173e8 (patch)
tree1422f8bc9cfa0340a7b1cdec03456a6bf5e3a7d5 /net
parentf7e9e230f41f991a6e3e7cb6096424fdfb626081 (diff)
net, wireless: overwrite default_ethtool_ops
Since: commit 2c60db037034d27f8c636403355d52872da92f81 Author: Eric Dumazet <edumazet@google.com> Date: Sun Sep 16 09:17:26 2012 +0000 net: provide a default dev->ethtool_ops wireless core does not correctly assign ethtool_ops. After alloc_netdev*() call, some cfg80211 drivers provide they own ethtool_ops, but some do not. For them, wireless core provide generic cfg80211_ethtool_ops, which is assigned in NETDEV_REGISTER notify call: if (!dev->ethtool_ops) dev->ethtool_ops = &cfg80211_ethtool_ops; But after Eric's commit, dev->ethtool_ops is no longer NULL (on cfg80211 drivers without custom ethtool_ops), but points to &default_ethtool_ops. In order to fix the problem, provide function which will overwrite default_ethtool_ops and use it by wireless core. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
2 files changed, 9 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 515473ee52c..f64e439b4a0 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6121,6 +6121,14 @@ struct netdev_queue *dev_ingress_queue_create(struct net_device *dev)
static const struct ethtool_ops default_ethtool_ops;
+void netdev_set_default_ethtool_ops(struct net_device *dev,
+ const struct ethtool_ops *ops)
+ if (dev->ethtool_ops == &default_ethtool_ops)
+ dev->ethtool_ops = ops;
* alloc_netdev_mqs - allocate network device
* @sizeof_priv: size of private data to allocate space for
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 14d99040035..b677eab55b6 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -866,8 +866,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
/* allow mac80211 to determine the timeout */
wdev->ps_timeout = -1;
- if (!dev->ethtool_ops)
- dev->ethtool_ops = &cfg80211_ethtool_ops;
+ netdev_set_default_ethtool_ops(dev, &cfg80211_ethtool_ops);
if ((wdev->iftype == NL80211_IFTYPE_STATION ||
wdev->iftype == NL80211_IFTYPE_P2P_CLIENT ||