linux-stable.git/net/wireless/core.c, branch v3.8

net, wireless: overwrite default_ethtool_ops

2013-01-11T23:55:48+00:00

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.

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 
Acked-by: Johannes Berg 
Acked-by: Ben Hutchings 
Signed-off-by: David S. Miller

cfg80211: allow registering more than one beacon listener

2012-11-05T15:33:45+00:00

The commit:

commit 5e760230e42cf759bd923457ca2753aacf2e656e
Author: Johannes Berg 
Date:   Fri Nov 4 11:18:17 2011 +0100

    cfg80211: allow registering to beacons

allowed only a single process to register for beacon events
per wiphy.  This breaks cases where a user may want two or
more VIFs on a wiphy and run a seperate hostapd process on
each vif.

This patch allows multiple beacon listeners, fixing the
regression.

Signed-off-by: Ben Greear 
Signed-off-by: Johannes Berg

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

2012-10-29T20:05:51+00:00

Conflicts:
	drivers/net/wireless/mwifiex/cfg80211.c

cfg80211: add tracing for P2P Device start/stop

2012-10-23T17:52:53+00:00

These were missed due to the tracing work having
started on a kernel that didn't have P2P Device
yet, implement them now.

Signed-off-by: Johannes Berg

cfg80211: fix antenna gain handling

2012-10-18T15:18:48+00:00

No driver initializes chan->max_antenna_gain to something sensible, and
the only place where it is being used right now is inside ath9k. This
leads to ath9k potentially using less tx power than it can use, which can
decrease performance/range in some rare cases.

Rather than going through every single driver, this patch initializes
chan->orig_mag in wiphy_register(), ignoring whatever value the driver
left in there. If a driver for some reason wishes to limit it independent
from regulatory rulesets, it can do so internally.

Signed-off-by: Felix Fietkau 
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg

cfg80211: add wrappers for registered_device_ops

2012-10-18T08:53:37+00:00

This will allow adding central tracing like in mac80211.

Signed-off-by: Hila Gonen 
Reviewed-by: Emmanuel Grumbach 
Reviewed-by: Johannes Berg 
Signed-off-by: Johannes Berg

cfg80211: add support for flushing old scan results

2012-10-18T07:01:52+00:00

Add an NL80211_SCAN_FLAG_FLUSH flag that causes old bss cache
entries to be flushed on scan completion. This is useful for
collecting guaranteed fresh scan/survey result (e.g. on resume).

For normal scan, flushing only happens on successful completion
of a scan; i.e. it does not happen if the scan is aborted.
For scheduled scan, previous scan results are flushed everytime
when we get new scan results.

This feature is enabled by default. Drivers can disable it by
unsetting the NL80211_FEATURE_SCAN_FLUSH flag.

Signed-off-by: Sam Leffler 
Tested-by: Amitkumar Karwar 
Signed-off-by: Amitkumar Karwar 
Signed-off-by: Bing Zhao 
[invert polarity of feature flag to account for old kernels]
Signed-off-by: Johannes Berg

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

2012-08-24T16:25:30+00:00

cfg80211: add P2P Device abstraction

2012-08-20T11:58:21+00:00

In order to support using a different MAC address
for the P2P Device address we must first have a
P2P Device abstraction that can be assigned a MAC
address.

This abstraction will also be useful to support
offloading P2P operations to the device, e.g.
periodic listen for discoverability.

Currently, the driver is responsible for assigning
a MAC address to the P2P Device, but this could be
changed by allowing a MAC address to be given to
the NEW_INTERFACE command.

As it has no associated netdev, a P2P Device can
only be identified by its wdev identifier but the
previous patches allowed using the wdev identifier
in various APIs, e.g. remain-on-channel.

Signed-off-by: Johannes Berg

cfg80211: process pending events when unregistering net device

2012-08-06T18:29:58+00:00

libertas currently calls cfg80211_disconnected() when it is being
brought down. This causes an event to be allocated, but since the
wdev is already removed from the rdev by the time that the event
processing work executes, the event is never processed or freed.
http://article.gmane.org/gmane.linux.kernel.wireless.general/95666

Fix this leak, and other possible situations, by processing the event
queue when a device is being unregistered. Thanks to Johannes Berg for
the suggestion.

Signed-off-by: Daniel Drake 
Cc: stable@vger.kernel.org
Reviewed-by: Johannes Berg 
Signed-off-by: John W. Linville