linux.git/net/mac80211/util.c, branch v3.13

mac80211: fix the mesh channel switch support

2013-11-25T15:50:13+00:00

Mesh STA receiving the mesh CSA action frame is not able to trigger
the mesh channel switch due to the incorrect handling and comparison
of mesh channel switch parameters element (MCSP)'s TTL. Make sure
the MCSP's TTL is updated accordingly before calling the
ieee80211_mesh_process_chnswitch. Also, we update the beacon before
forwarding the CSA action frame, so MCSP's precedence value and
initiator flag need to be updated prior to this.

Signed-off-by: Chun-Yeow Yeoh 
Signed-off-by: Johannes Berg

mac80211: DFS setup chandef for radar_event correctly

2013-11-25T15:50:03+00:00

Setup chandef for radar event correctly, before we
will clear this in ieee80211_dfs_cac_cancel() function.

Without this patch mac80211 will report wrong channel
width in case we will get radar event during active CAC.

Signed-off-by: Janusz Dziedzic 
Reviewed-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg

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

2013-11-05T20:49:02+00:00

Conflicts:
	net/wireless/reg.c

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

2013-11-04T19:45:14+00:00

Conflicts:
	drivers/net/wireless/iwlwifi/pcie/drv.c

{nl,cfg,mac}80211: enable the triggering of CSA frame in mesh

2013-10-28T14:05:29+00:00

Allow the triggering of CSA frame using mesh interface. The
rules are more or less same with IBSS, such as not allowed to
change between the band and channel width has to be same from
the previous mode. Also, move the ieee80211_send_action_csa
to a common space so that it can be re-used by mesh interface.

Signed-off-by: Chun-Yeow Yeoh 
Signed-off-by: Johannes Berg

mac80211: process the CSA frame for mesh accordingly

2013-10-28T14:05:28+00:00

Process the CSA frame according to the procedures define in IEEE Std
802.11-2012 section 10.9.8.4.3 as follow:
* The mesh channel switch parameters element (MCSP) must be availabe.
* If the MCSP's TTL is 1, drop the frame but still process the CSA.
* If the MCSP's precedence value is less than or equal to the current
  precedence value, drop the frame and do not process the CSA.
* The CSA frame is forwarded after TTL is decremented by 1 and the
  initiator field is set to 0. Transmit restrict field and others
  are maintained as is.
* No beacon or probe response frame are handled here.

Also, introduce the debug message used for mesh CSA purpose.

Signed-off-by: Chun-Yeow Yeoh 
Signed-off-by: Johannes Berg

mac80211: Remove check for offchannel state when waking netdev queues

2013-10-28T14:05:26+00:00

6c17b77b67587b9f9e3070fb89fe98cef3187131 ensures that a device's
mac80211 queues will remain stopped while offchannel. Since the
vif can no longer be offchannel when the queues wake it's not
necessary to check for this before waking its netdev queues.

Signed-off-by: Seth Forshee 
Signed-off-by: Johannes Berg

mac80211: implement SMPS for AP

2013-10-28T14:05:11+00:00

When the driver requests to move to STATIC or DYNAMIC SMPS,
we send an action frame to each associated station and
reconfigure the channel context / driver.
Of course, non-MIMO stations are ignored.

The beacon isn't updated. The association response will
include the original capabilities. Stations that associate
while in non-OFF SMPS mode will get an action frame right
after association to inform them about our current state.
Note that we wait until the end of the EAPOL. Sending an
action frame before the EAPOL is finished can be an issue
for a few clients. Clients aren't likely to send EAPOL
frames in MIMO anyway.

When the SMPS configuration gets more permissive (e.g.
STATIC -> OFF), we don't wake up stations that are asleep
We remember that they don't know about the change and send
the action frame when they wake up.

When the SMPS configuration gets more restrictive (e.g.
OFF -> STATIC), we set the TIM bit for every sleeping STA.
uAPSD stations might send MIMO until they poll the action
frame, but this is for a short period of time.

Signed-off-by: Emmanuel Grumbach 
[fix vht streams loop, initialisation]
Signed-off-by: Johannes Berg

mac80211: fix crash if bitrate calculation goes wrong

2013-10-14T07:47:08+00:00

If a frame's timestamp is calculated, and the bitrate
calculation goes wrong and returns zero, the system
will attempt to divide by zero and crash. Catch this
case and print the rate information that the driver
reported when this happens.

Cc: stable@vger.kernel.org
Reported-by: Thomas Lindroth 
Signed-off-by: Johannes Berg

mac80211: improve default WMM parameter setting

2013-10-01T10:24:29+00:00

Move the default setting for WMM parameters outside the for loop
to avoid redundant assignment multiple times.

Signed-off-by: Fred Zhou 
Signed-off-by: Johannes Berg