linux-toradex.git/net/mac80211/pm.c, branch v3.4.71

mac80211: use proper sub_if_data on suspend path

2012-02-27T19:06:40+00:00

Use interface data from sta instead of invalid pointer
to list head in calls to drv_sta_state.

Signed-off-by: Jakub Kicinski 
Reviewed-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: implement sta_add/sta_remove in sta_state

2012-02-06T19:48:25+00:00

Instead of maintaining separate sta_add/sta_remove
callsites, implement it in sta_state when the driver
has no sta_state implementation.

The only behavioural change this should cause is in
secure mesh mode: with this the station entries will
only be created after the stations are set to AUTH.
Given which drivers support mesh, this seems to not
be a problem.

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

mac80211: add sta_state callback

2012-02-06T19:48:24+00:00

(based on Eliad's patch)

Add a callback to notify the low-level driver whenever
the state of a station changes. The driver is only
notified when the station is actually in the mac80211
hash table, not for pre-insert state transitions.

To allow the driver to replace sta_add/remove calls
with this, call extra transitions with the NOTEXIST
state.

This callback can fail, so we need to be careful in
handling it when a station is inserted, particularly
in the IBSS case where we still keep the station entry
around for mac80211 purposes.

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

mac80211: simplify AP_VLAN handling

2012-02-06T19:48:24+00:00

Setting keys and updating TKIP keys must use the
BSS sdata (not AP_VLAN), so we translate. Move
the translation into driver-ops wrappers instead
of having it inline in the code to simplify the
normal code flow.

The same can be done for sta_add/remove which
already does the translation in the wrapper.

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

mac80211: verify virtual interfaces in driver API

2011-11-09T21:01:02+00:00

The driver is never informed about monitor or
AP_VLAN interfaces, so whenever we pass those
to it later this is a bug. Verify we don't as
there are some cases where this could happen.

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

mac80211: optimise station flags

2011-09-30T19:57:19+00:00

The flaglock in struct sta_info has long been
something that I wanted to get rid of, this
finally does the conversion to atomic bitops.

The conversion itself is straight-forward in
most places, a few things needed to change a
bit since we can no longer use multiple bits
at the same time.

On x86-64, this is a fairly significant code
size reduction:
   text	   data	    bss	    dec	    hex
 427861	  23648	   1008	 452517	  6e7a5	before
 425383	  23648	    976	 450007	  6ddd7	after

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

mac80211: be more careful in suspend/resume

2011-07-15T17:39:42+00:00

When suspending with all netdevs down, the device
is stopped but we still call a number of driver
callbacks that the driver might not expect. The
same happens during resume, we might call a few
callbacks without starting the driver. Fix this
by checking open_count around more things and
exiting quickly if it is 0.

Also, while at this I noticed that the coverage
class isn't reprogrammed after resume, so add
that.

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

mac80211: allow driver to impose WoWLAN restrictions

2011-07-05T19:26:56+00:00

If the driver can't support WoWLAN in the current
state, this patch allows it to return 1 from the
suspend callback to do the normal deconfiguration
instead of using suspend/resume calls. Note that
if it does this, resume won't be called.

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

mac80211: quiesce vif before suspending

2011-06-20T19:34:18+00:00

Cancel all relevant timers/works before suspending (wowlan).

This patch handles the following warning:
WARNING: at net/mac80211/util.c:565 queueing ieee80211 work while going to suspend
Backtrace:
[] (ieee80211_can_queue_work+0x0/0x4c [mac80211])
[] (ieee80211_queue_work+0x0/0x30 [mac80211])
[] (ieee80211_sta_timer+0x0/0x3c [mac80211])
[] (run_timer_softirq+0x0/0x220)
[] (__do_softirq+0x0/0x130)
[] (irq_exit+0x0/0xb4)
[] (ipi_timer+0x0/0x4c)
[] (do_local_timer+0x0/0x88)
[] (cpu_idle+0x0/0xe0)
[] (rest_init+0x0/0xe0)
[] (start_kernel+0x0/0x314)

Signed-off-by: Eliad Peller 
Signed-off-by: John W. Linville

mac80211: add basic support for WoWLAN

2011-05-05T18:59:20+00:00

This adds basic support for the new WoWLAN
configuration in mac80211. The behaviour is
completely offloaded to the driver though,
with two new callbacks (suspend/resume).

Options for the driver include a complete
reconfiguration after wakeup, and exposing
all the triggers it wants to support.

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