linux-toradex.git/net/mac80211/work.c, branch v3.0.44

mac80211: config hw when going back on-channel

2011-11-11T17:37:12+00:00

commit 6911bf0453e0d6ea8eb694a4ce67a68d071c538e upstream.

When going back on-channel, we should reconfigure
the hw iff the hardware is not already configured
to the operational channel.

Signed-off-by: Eliad Peller 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

mac80211: fix remain_off_channel regression

2011-11-11T17:37:12+00:00

commit eaa7af2ae582c9a8c51b374c48d5970b748a5ce2 upstream.

The offchannel code is currently broken - we should
remain_off_channel if the work was started, and
the work's channel and channel_type are the same
as local->tmp_channel and local->tmp_channel_type.

However, if wk->chan_type and local->tmp_channel_type
coexist (e.g. have the same channel type), we won't
remain_off_channel.

This behavior was introduced by commit da2fd1f
("mac80211: Allow work items to use existing
channel type.")

Tested-by: Ben Greear 
Signed-off-by: Eliad Peller 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

mac80211: fix offchannel TX cookie matching

2011-11-11T17:35:51+00:00

commit 28a1bcdb57d50f3038a255741ecc83e391e5282e upstream.

When I introduced in-kernel off-channel TX I
introduced a bug -- the work can't be canceled
again because the code clear the skb pointer.
Fix this by keeping track separately of whether
TX status has already been reported.

Reported-by: Jouni Malinen 
Tested-by: Jouni Malinen 
Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

2011-05-20T20:43:21+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits)
  macvlan: fix panic if lowerdev in a bond
  tg3: Add braces around 5906 workaround.
  tg3: Fix NETIF_F_LOOPBACK error
  macvlan: remove one synchronize_rcu() call
  networking: NET_CLS_ROUTE4 depends on INET
  irda: Fix error propagation in ircomm_lmp_connect_response()
  irda: Kill set but unused variable 'bytes' in irlan_check_command_param()
  irda: Kill set but unused variable 'clen' in ircomm_connect_indication()
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport()
  be2net: Kill set but unused variable 'req' in lancer_fw_download()
  irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication()
  atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined.
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer().
  rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window()
  pkt_sched: Kill set but unused variable 'protocol' in tc_classify()
  isdn: capi: Use pr_debug() instead of ifdefs.
  tg3: Update version to 3.119
  tg3: Apply rx_discards fix to 5719/5720
  ...

Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c
as per Davem.

net/mac80211,rcu: convert call_rcu(work_free_rcu) to kfree_rcu()

2011-05-08T05:51:11+00:00

The rcu callback work_free_rcu() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(work_free_rcu).

Signed-off-by: Lai Jiangshan 
Acked-by: "John W. Linville" 
Signed-off-by: Paul E. McKenney 
Reviewed-by: Josh Triplett

mac80211: Fix warnings due to -Wunused-but-set-variable

2011-04-26T19:50:31+00:00

These warnings are exposed by gcc 4.6.
net/mac80211/sta_info.c: In function 'sta_info_cleanup_expire_buffered':
net/mac80211/sta_info.c:590:32: warning: variable 'sdata' set but not used
net/mac80211/ibss.c: In function 'ieee80211_rx_mgmt_auth_ibss':
net/mac80211/ibss.c:43:34: warning: variable 'status_code' set but not used
net/mac80211/work.c: In function 'ieee80211_send_assoc':
net/mac80211/work.c:203:9: warning: variable 'len' set but not used
net/mac80211/tx.c: In function '__ieee80211_parse_tx_radiotap':
net/mac80211/tx.c:1039:35: warning: variable 'sband' set but not used
net/mac80211/mesh.c: In function 'ieee80211_mesh_rx_queued_mgmt':
net/mac80211/mesh.c:616:28: warning: variable 'ifmsh' set but not used
 ...

Signed-off-by: Rajkumar Manoharan 
Signed-off-by: John W. Linville

mac80211: remove unused macros

2011-03-07T18:48:30+00:00

Compile test only.

Signed-off-by: Shan Wei 
Signed-off-by: John W. Linville

mac80211: fix 2.4 GHz 40 MHz disabling

2011-02-18T21:54:52+00:00

The module parameter ieee80211_disable_40mhz_24ghz
was meant to allow disabling 40 MHz operation in
the 2.4 GHz band by default. However, it is buggy
as implemented because while it advertises to the
AP that the device doesn't support 40 MHz, it will
itself still use 40 MHz configurations.

To fix this, clear the 40 MHz bits from the sband
completely instead of overriding where used.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: Allow work items to use existing channel type.

2011-02-09T21:09:46+00:00

Narrow channel types can function within larger channel types.
So, use existing channel type for work items when possible.
This decreases hardware channel changes significantly when
using non NO_HT channel types on the operating channel.

Signed-off-by: Ben Greear 
Signed-off-by: John W. Linville

mac80211: Optimize scans on current operating channel.

2011-02-04T21:30:32+00:00

This should decrease un-necessary flushes, on/off channel work,
and channel changes in cases where the only scanned channel is
the current operating channel.

* Removes SCAN_OFF_CHANNEL flag, uses SDATA_STATE_OFFCHANNEL
  and is-scanning flags instead.

* Add helper method to determine if we are currently configured
  for the operating channel.

* Do no blindly go off/on channel in work.c  Instead, only call
  appropriate on/off code when we really need to change channels.
  Always enable offchannel-ps mode when starting work,
  and disable it when we are done.

* Consolidate ieee80211_offchannel_stop_station and
  ieee80211_offchannel_stop_beaconing, call it
  ieee80211_offchannel_stop_vifs instead.

* Accept non-beacon frames when scanning on operating channel.

* Scan state machine optimized to minimize on/off channel
  transitions.  Also, when going on-channel, go ahead and
  re-enable beaconing.  We're going to be there for 200ms,
  so seems like some useful beaconing could happen.
  Always enable offchannel-ps mode when starting software
  scan, and disable it when we are done.

* Grab local->mtx earlier in __ieee80211_scan_completed_finish
  so that we are protected when calling hw_config(), etc.

* Pass probe-responses up the stack if scanning on local
  channel, so that mlme can take a look.

Signed-off-by: Ben Greear 
Signed-off-by: John W. Linville