linux-toradex.git/net/mac80211/mesh.c, branch v4.0-rc1

mac80211: use secondary channel offset IE also beacons during CSA

2014-10-29T15:37:45+00:00

If we are switching from an HT40+ to an HT40- channel (or vice-versa),
we need the secondary channel offset IE to specify what is the
post-CSA offset to be used.  This applies both to beacons and to probe
responses.

In ieee80211_parse_ch_switch_ie() we were ignoring this IE from
beacons and using the *current* HT information IE instead.  This was
causing us to use the same offset as before the switch.

Fix that by using the secondary channel offset IE also for beacons and
don't ever use the pre-switch offset.  Additionally, remove the
"beacon" argument from ieee80211_parse_ch_switch_ie(), since it's not
needed anymore.

Cc: stable@vger.kernel.org
Reported-by: Jouni Malinen 
Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

mac80211: move csa counters from sdata to beacon/presp

2014-06-23T12:22:06+00:00

Having csa counters part of beacon and probe_resp
structures makes it easier to get rid of possible
races between setting a beacon and updating
counters on SMP systems by guaranteeing counters
are always consistent against given beacon struct.

While at it relax WARN_ON into WARN_ON_ONCE to
prevent spamming logs and racing.

Signed-off-by: Michal Kazior 
[remove pointless array check]
Signed-off-by: Johannes Berg

trivial: net/mac80211/mesh.c: fix typo s/Substract/Subtract/

2014-06-23T09:05:29+00:00

Signed-off-by: Antonio Ospite 
Cc: Luis Carlos Cobo 
Cc: Johannes Berg 
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Johannes Berg

mac80211: Support multiple CSA counters

2014-05-15T13:00:58+00:00

Support up to IEEE80211_MAX_CSA_COUNTERS_NUM csa counters.
This is defined to be 2 now, to support both CSA and eCSA
counters.

Signed-off-by: Andrei Otcheretianski 
Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

mac80211: fix mesh_add_rsn_ie IE finding loop

2014-04-22T15:24:49+00:00

Previously, the code to copy the RSN IE from the mesh config
would increment its pointer by one in the loop instead of by
the element length, so there was the potential for mistaking
another IE's data fields as the RSN IE.

cfg80211_find_ie() exists, so just use that.

Signed-off-by: Bob Copeland 
Signed-off-by: Johannes Berg

cfg80211/mac80211: refactor cfg80211_chandef_dfs_required()

2014-04-09T08:55:41+00:00

Some interface types don't require DFS (such as STATION, P2P_CLIENT
etc).  In order to centralize these decisions, make
cfg80211_chandef_dfs_required() take the iftype into consideration.

Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

mac80211: use RCU_INIT_POINTER

2014-04-09T08:55:30+00:00

rcu_assign_pointer() ensures that the initialization of a structure is
carried out before storing a pointer to that structure. However, in the
case that NULL is assigned there's no structure to initialize so using
RCU_INIT_POINTER instead is safe and more efficient.

Signed-off-by: Monam Agarwal 
[squash eight tiny patches, rewrite commit log]
Signed-off-by: Johannes Berg

mac80211: add missing CSA locking

2014-02-04T20:58:11+00:00

The patch adds a missing sdata lock and adds a few
lockdeps for easier maintenance.

Signed-off-by: Michal Kazior 
Signed-off-by: Johannes Berg

mac80211: batch CSA bss info notification

2014-02-04T20:58:09+00:00

Instead of having
ieee80211_bss_info_change_notify() scattered all
over the place just call it once when finalizing
CSA.

As a side effect this patch adds missing error
checking for IBSS CSA beacon update.

Signed-off-by: Michal Kazior 
Reviewed-by: Luciano Coelho 
[fix err vs. changed variable usage in ieee80211_csa_finalize()]
Signed-off-by: Johannes Berg

mac80211: use sdata mesh_id_len instead of wdev's

2014-02-04T20:48:17+00:00

Since we copy the mesh_id_len into our own data structures,
use it consistently and don't sometimes use cfg80211's copy.

Signed-off-by: Johannes Berg