linux-stable.git/net/wireless, branch linux-3.8.y

wireless: regulatory: fix channel disabling race condition

2013-05-08T03:08:23+00:00

commit 990de49f74e772b6db5208457b7aa712a5f4db86 upstream.

When a full scan 2.4 and 5 GHz scan is scheduled, but then the 2.4 GHz
part of the scan disables a 5.2 GHz channel due to, e.g. receiving
country or frequency information, that 5.2 GHz channel might already
be in the list of channels to scan next. Then, when the driver checks
if it should do a passive scan, that will return false and attempt an
active scan. This is not only wrong but can also lead to the iwlwifi
device firmware crashing since it checks regulatory as well.

Fix this by not setting the channel flags to just disabled but rather
OR'ing in the disabled flag. That way, even if the race happens, the
channel will be scanned passively which is still (mostly) correct.

Signed-off-by: Johannes Berg 
Signed-off-by: Greg Kroah-Hartman

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

2013-02-01T18:43:25+00:00

cfg80211: off by one in ieee80211_bss()

2013-01-24T14:47:22+00:00

We do a:

	sprintf(buf, " Last beacon: %ums ago",
		elapsed_jiffies_msecs(bss->ts));

elapsed_jiffies_msecs() can return a 10 digit number so "buf" needs to
be 31 characters long.

Signed-off-by: Dan Carpenter 
Signed-off-by: Johannes Berg

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

CONFIG_HOTPLUG removal from networking core

2012-12-22T08:03:00+00:00

CONFIG_HOTPLUG is always enabled now, so remove the unused code that was
trying to be compiled out when this option was disabled, in the
networking core.

Cc: Bill Pemberton 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: David S. Miller

Merge branch 'for-john' of git://git.sipsolutions.net/mac80211-next

2012-12-11T21:04:03+00:00

wext: explicitly cast -110 to u8

2012-12-07T10:58:26+00:00

This doesn't generate any different code, but will
suppress a spurious smatch warning.

Signed-off-by: Johannes Berg

Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

2012-12-06T19:58:41+00:00

Conflicts:
	drivers/net/wireless/mwifiex/sta_ioctl.c
	net/mac80211/scan.c

cfg80211: check no-OFDM flag for channels wider than 20 MHz

2012-12-04T19:51:27+00:00

For channels wider than 20 MHz OFDM will be used, so when
checking whether or not a channel is usable, check for the
no-OFDM flag if the channel is wider than 20 MHz.

Signed-off-by: Johannes Berg

cfg80211: fix channel error on mesh join

2012-12-03T10:24:49+00:00

Fix an error on mesh join when no channel has been
explicitly set beforehand.

Also remove a double semicolon.

Signed-off-by: Marco Porsch 
Signed-off-by: Johannes Berg