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path: root/net/mac80211/sta_info.c
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2013-06-24mac80211: initialize power mode for mesh STAsThomas Pedersen1-0/+1
Previously the default mesh STA nonpeer power mode was UNKNOWN (0) make the default mesh STA power mode ACTIVE, to prevent unnecessary frame buffering while peering is not yet complete. Fixes a panic in ath9k_htc when adding stations from userspace, and mcast buffered frames are later released. Thanks to Bob Copeland for his help debugging this. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-13mac80211: fix TX aggregation TID struct leakJohannes Berg1-0/+1
Ben reports that kmemleak is saying TX aggregation TID structs are leaked. Given his workload, I suspect that they're leaked because stations are destroyed before their aggregation sessions get a chance to start. Fix this by simply freeing structs that are not used yet. Reported-by: Ben Greear <greearb@candelatech.com> Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-04mac80211: add a tx control flag to indicate PS-Poll/uAPSD responseFelix Fietkau1-1/+3
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-17mac80211: add support for per-chain signal strength reportingFelix Fietkau1-0/+2
Signed-off-by: Felix Fietkau <nbd@openwrt.org> [fix unit documentation] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-11mac80211: batch key free synchronize_net()Johannes Berg1-9/+3
Instead of calling synchronize_net() for every key on an interface or when a station is removed, do it only once for all keys in both of these cases. As a side-effect, removing station keys now always calls synchronize_net() even if there are no keys, which fixes an issue with station removal happening in the driver while the station could still be used for TX. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-11mac80211: remove underscores from some key functionsJohannes Berg1-4/+4
Some key function don't exist without underscores, so remove the underscores from those. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-07mac80211: Call drv_set_tim only if there is a changeIlan Peer1-0/+13
It is possible that sta_info_recalc_tim() is called consecutively without changing the station's tim bit. In such cases there is no need to call the driver's set_tim() callback. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-07mac80211: provide ieee80211_sta_eosp()Johannes Berg1-17/+3
The irqsafe version ieee80211_sta_eosp_irqsafe() exists, but drivers must not mix calls to any irqsafe/non-irqsafe function. Both ath9k and iwlwifi, the likely first users of this interface, use non-irqsafe RX/TX/TX status so must also use a non-irqsafe version of this function. Since no driver uses the _irqsafe() version, remove that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06mac80211: init mesh timer for user authed STAsThomas Pedersen1-0/+5
There is a corner case which wasn't being covered: userspace may authenticate and allocate stations, but still leave the peering up to the kernel. Initialize the peering timer if the MPM is not in userspace, in a path which is taken by both the kernel and userspace when allocating stations. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06mac80211: defer tailroom counter manipulation when roamingJohannes Berg1-2/+4
During roaming, the crypto_tx_tailroom_needed_cnt counter will often take values 2,1,0,1,2 because first keys are removed and then new keys are added. This is inefficient because during the 0->1 transition, synchronize_net must be called to avoid packet races, although typically no packets would be flowing during that time. To avoid that, defer the decrement (2->1, 1->0) when keys are removed (by half a second). This means the counter will really have the values 2,2,2,3,4 ... 2, thus never reaching 0 and having to do the 0->1 transition. Note that this patch entirely disregards the drivers for which this optimisation was done to start with, for them the key removal itself will be expensive because it has to synchronize_net() after the counter is incremented to remove the key from HW crypto. For them the sequence will look like this: 0,1,0,1,0,1,0,1,0 (*) which is clearly a lot more inefficient. This could be addressed separately, during key removal the 0->1->0 sequence isn't necessary. (*) it starts at 0 because HW crypto is on, then goes to 1 when HW crypto is disabled for a key, then back to 0 because the key is deleted; this happens for both keys in the example. When new keys are added, it goes to 1 first because they're added in software; when a key is moved to hardware it goes back to 0 Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: stop modifying HT SMPS capabilityJohannes Berg1-0/+2
Instead of modifying the HT SMPS capability field for stations, track the SMPS mode explicitly in a new field in the station struct and use it in the drivers that care about it. This simplifies the code using it. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: use spin_lock_bh() for tim_lockJohannes Berg1-3/+2
There's no need to use _irqsave() as the lock is never used in interrupt context. This also fixes a problem in the iwlwifi MVM driver that calls spin_unlock_bh() within its set_tim() callback. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: fix auth/assoc timeout handlingJohannes Berg1-0/+2
In my commit 1672c0e31917f49d31d30d79067103432bc20cc7 ("mac80211: start auth/assoc timeout on frame status") I broke auth/assoc timeout handling: in case we wait for the TX status, it now leaves the timeout field set to 0, which is a valid time and can compare as being before now ("jiffies"). Thus, if the work struct runs for some other reason, the auth/assoc is treated as having timed out. Fix this by introducing a separate "timeout_started" variable that tracks whether the timeout has started and is checked before timing out. Additionally, for proper TX status handling the change requires that the skb->dev pointer is set up for all the frames, so set it up for all frames in mac80211. Reported-by: Wojciech Dubowik <Wojciech.Dubowik@neratec.com> Tested-by: Wojciech Dubowik <Wojciech.Dubowik@neratec.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-11mac80211: fix mesh sta teardownThomas Pedersen1-7/+2
The patch "mac80211: clean up mesh sta allocation warning" moved some mesh initialization into a path which is only called when the kernel handles peering. This causes a hang when mac80211 tries to clean up a userspace-allocated station entry and delete a timer which has never been initialized. To avoid this, only do any mesh sta peering teardown if the kernel is actually handling it. The same is true when quiescing before suspend. Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-04mac80211: mesh power save basicsMarco Porsch1-2/+18
Add routines to - maintain a PS mode for each peer and a non-peer PS mode - indicate own PS mode in transmitted frames - track neighbor STAs power modes - buffer frames when neighbors are in PS mode - add TIM and Awake Window IE to beacons - release frames in Mesh Peer Service Periods Add local_pm to sta_info to represent the link-specific power mode at this station towards the remote station. When a peer link is established, use the default power mode stored in mesh config. Update the PS status if the peering status of a neighbor changes. Maintain a mesh power mode for non-peer mesh STAs. Set the non-peer power mode to active mode during peering. Authenticated mesh peering is currently not working when either node is configured to be in power save mode. Indicate the current power mode in transmitted frames. Use QoS Nulls to indicate mesh power mode transitions. For performance reasons, calls to the function setting the frame flags are placed in HWMP routing routines, as there the STA pointer is already available. Add peer_pm to sta_info to represent the peer's link-specific power mode towards the local station. Add nonpeer_pm to represent the peer's power mode towards all non-peer stations. Track power modes based on received frames. Add the ps_data structure to ieee80211_if_mesh (for TIM map, PS neighbor counter and group-addressed frame buffer). Set WLAN_STA_PS flag for STA in PS mode to use the unicast frame buffering routines in the tx path. Update num_sta_ps to buffer and release group-addressed frames after DTIM beacons. Announce the awake window duration in beacons if in light or deep sleep mode towards any peer or non-peer. Create a TIM IE similarly to AP mode and add it to mesh beacons. Parse received Awake Window IEs and check TIM IEs for buffered frames. Release frames towards peers in mesh Peer Service Periods. Use the corresponding trigger frames and monitor the MPSP status. Append a QoS Null as trigger frame if neccessary to properly end the MPSP. Currently, in HT channels MPSPs behave imperfectly and show large delay spikes and frame losses. Signed-off-by: Marco Porsch <marco@cozybit.com> Signed-off-by: Ivan Bezyazychnyy <ivan.bezyazychnyy@gmail.com> Signed-off-by: Mike Krinkin <krinkin.m.u@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-24mac80211: clean up mesh sta allocation warningThomas Pedersen1-5/+0
This refactoring fixes a "scheduling while atomic" warning when allocating a mesh station entry while holding the RCU read lock. Fix this by creating a new function mesh_sta_info_get(), which correctly handles the locking and returns under RCU. Also move some unnecessarily #ifdefed mesh station init code from sta_info_alloc() to __mesh_sta_info_alloc(). Signed-off-by: Thomas Pedersen <thomas@cozybit.com> [change code flow to make sparse happy] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03mac80211: split aggregation stop by reasonJohannes Berg1-1/+1
The initiator/tx doesn't really identify why an aggregation session is stopped, give a reason for stopping that more clearly identifies what's going on. This will help tell the driver clearly what is expected of it. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03mac80211: optimise AP stop RCU handlingJohannes Berg1-2/+0
If there are VLANs, stopping an AP is inefficient as it calls rcu_barrier() once for each interface (the VLANs and the AP itself). Optimise this by moving rcu_barrier() out of the station cleanups and calling it only once for all interfaces combined. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03mac80211: optimise roaming time againJohannes Berg1-10/+17
The last fixes re-added the RCU synchronize penalty on roaming to fix the races. Split up sta_info_flush() now to get rid of that again, and let managed mode (and only it) delay the actual destruction. Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03mac80211: remove final sta_info_flush()Johannes Berg1-17/+6
When all interfaces have been removed, there can't be any stations left over, so there's no need to flush again. Remove this, and all code associated with it, which also simplifies the function. Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03mac80211: use del_timer_sync for final sta cleanup timer deletionJohannes Berg1-1/+1
This is a very old bug, but there's nothing that prevents the timer from running while the module is being removed when we only do del_timer() instead of del_timer_sync(). The timer should normally not be running at this point, but it's not clearly impossible (or we could just remove this.) Cc: stable@vger.kernel.org Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03mac80211: fix station destruction in AP/mesh modesJohannes Berg1-4/+40
Unfortunately, commit b22cfcfcae5b, intended to speed up roaming by avoiding the synchronize_rcu() broke AP/mesh modes as it moved some code into that work item that will still call into the driver at a time where it's no longer expected to handle this: after the AP or mesh has been stopped. To fix this problem remove the per-station work struct, maintain a station cleanup list instead and flush this list when stations are flushed. To keep this patch smaller for stable, do this when the stations are flushed (sta_info_flush()). This unfortunately brings back the original roaming delay; I'll fix that again in a separate patch. Also, Ben reported that the original commit could sometimes (with many interfaces) cause long delays when an interface is set down, due to blocking on flush_workqueue(). Since we now maintain the cleanup list, this particular change of the original patch can be reverted. Cc: stable@vger.kernel.org [3.7] Reported-by: Ben Greear <greearb@candelatech.com> Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26Merge branch 'for-john' of ↵John W. Linville1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2012-11-26mac80211: convert to channel definition structJohannes Berg1-1/+1
Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-21Merge branch 'for-john' of ↵John W. Linville1-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2012-11-21Merge branch 'master' of ↵John W. Linville1-3/+8
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c drivers/net/wireless/iwlwifi/pcie/tx.c
2012-11-19mac80211: introduce IEEE80211_NUM_TIDS and use itJohannes Berg1-5/+5
Introduce IEEE80211_NUM_TIDS in the generic 802.11 header file and use it in place of STA_TID_NUM and NUM_RX_DATA_QUEUES which are both really the number of TIDs. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-14Merge branch 'for-john' of ↵John W. Linville1-3/+8
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
2012-11-11mac80211: call skb_dequeue/ieee80211_free_txskb instead of __skb_queue_purgeFelix Fietkau1-3/+3
Fixes more wifi status skb leaks, leading to hostapd/wpa_supplicant hangs. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-05mac80211: sync acccess to tx_filtered/ps_tx_buf queuesArik Nemtsov1-0/+5
These are accessed without a lock when ending STA PSM. If the sta_cleanup timer accesses these lists at the same time, we might crash. This may fix some mysterious crashes we had during ieee80211_sta_ps_deliver_wakeup. Cc: stable@vger.kernel.org Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-23Merge branch 'master' of ↵John W. Linville1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c net/mac80211/mlme.c
2012-10-19mac80211: make client powersave independent of interface typeMarco Porsch1-11/+32
This patch prepares mac80211 for a later implementation of mesh or ad-hoc powersave clients. The structures related to powersave (buffer, TIM map, counters) are moved from the AP-specific interface structure to a generic structure that can be embedded into any interface type. The functions related to powersave are prepared to allow easy extension with different interface types. For example with: + } else if (sta->sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { + ps = &sdata->u.mesh.ps; Some references to the AP's beacon structure are removed where they were obviously not used. The patch compiles without warning and has been briefly tested as AP interface with one client in PS mode. Signed-off-by: Marco Porsch <marco.porsch@etit.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: Use appropriate debug wrapperMohammed Shafi Shajakhan1-2/+2
ieee80211_sta_expire will be called by both IBSS and mesh interfaces to account for inactive stations, so it would be more appropriate to use sta_dbg instead of ibss_dbg. Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: use channel contextsJohannes Berg1-1/+11
Instead of operating on a single channel only, use the new channel context infrastructure in all mac80211 code. This enables drivers that want to use the new channel context infrastructure to use multiple channels, while nothing should change for all the other drivers that don't support it. Right now this disables both TX power settings and spatial multiplexing powersave. Both need to be re-enabled on a channel context basis. Additionally, when channel contexts are used drop the connection when channel switch is received rather than trying to handle it. This will have to be improved later. [With fixes from Eliad and Emmanuel incorporated] Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-15mac80211: use ieee80211_free_txskb in a few more placesFelix Fietkau1-2/+2
Free tx status skbs when draining power save buffers, pending frames, or when tearing down a vif. Fixes remaining conditions that can lead to hostapd/wpa_supplicant hangs when running out of socket write memory. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@vger.kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-09-21mac80211: don't send delBA when removing stationsJohannes Berg1-1/+1
When a station is removed and we stop the aggregation sessions, it's not useful to send delBA since this is due to us or the station disassociating or dropping the connection in some other way, so change that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-10mac80211: use call_rcu() on sta deletionEliad Peller1-54/+67
mac80211 calls synchronize_rcu() on sta deletion, which increase the roaming time significantly. Convert it into a call_rcu() mechanism, in order to avoid blocking. Since some of the cleanup functions might sleep, schedule from the call_rcu callback a new work that will do the actual cleanup. In order to make sure the cleanup occurs before the interface went down, flush local->workqueue on ieee80211_do_stop(). Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-24mac80211: clean up debuggingJohannes Berg1-27/+17
There are a few things that make the logging and debugging in mac80211 less useful than it should be right now: * a lot of messages should be pr_info, not pr_debug * wholesale use of pr_debug makes it require *both* Kconfig and dynamic configuration * there are still a lot of ifdefs * the style is very inconsistent, sometimes the sdata->name is printed in front Clean up everything, introducing new macros and separating out the station MLME debugging into a new Kconfig symbol. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-06Merge branch 'master' of ↵John W. Linville1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless Conflicts: drivers/net/wireless/iwlwifi/iwl-drv.c
2012-06-05net: mac80211: Add and use ibss_vdbg debugging macroJoe Perches1-4/+2
Simplify the use of #ifdef CONFIG_MAC80211_IBSS_DEBUG/#endif by adding a logging macro to encapsulate the test. Convert the appropriate uses too. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-05net: mac80211: Convert printk(KERN_DEBUG to pr_debugJoe Perches1-12/+9
Standardize the debugging to be able to use dynamic_debug. Coalesce formats, align arguments. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-06-04mac80211: fix non RCU-safe sta_list manipulationArik Nemtsov1-2/+2
sta_info_cleanup locks the sta_list using rcu_read_lock however the delete operation isn't rcu safe. A race between sta_info_cleanup timer being called and a STA being removed can occur which leads to a panic while traversing sta_list. Fix this by switching to the RCU-safe versions. Cc: stable@vger.kernel.org Reported-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-05-10mac80211: Convert compare_ether_addr to ether_addr_equalJoe Perches1-4/+4
Use the new bool function ether_addr_equal to add some clarity and reduce the likelihood for misuse of compare_ether_addr for sorting. Done via cocci script: $ cat compare_ether_addr.cocci @@ expression a,b; @@ - !compare_ether_addr(a, b) + ether_addr_equal(a, b) @@ expression a,b; @@ - compare_ether_addr(a, b) + !ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) == 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) != 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) == 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) != 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !!ether_addr_equal(a, b) + ether_addr_equal(a, b) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-24mac80211: fix num_mcast_sta counting issuesFelix Fietkau1-4/+8
Moving a STA to an AP VLAN prevents num_mcast_sta from being decremented once the STA leaves, because sta->sdata changes. Fix this by checking for AP VLANs as well. Also exclude 4-addr VLAN stations from num_mcast_sta - remote 4-addr stations ignore 3-address multicast frames anyway. In a typical bridge configuration they receive the same packets as 4-address unicast. This patch also fixes clearing the sdata->u.vlan.sta pointer when the STA is removed from a 4-addr VLAN. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-24mac80211: rename AP variable num_sta_authorized to num_mcast_staFelix Fietkau1-2/+2
It is only used to test for BSS multicast receivers. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-10mac80211: end service period only after sending last buffered frameMarco Porsch1-7/+9
Signed-off-by: Marco Porsch <marco.porsch@etit.tu-chemnitz.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-03-06mac80211: use compare_ether_addr on MAC addresses instead of memcmpFelix Fietkau1-2/+3
Because of the constant size and guaranteed 16 bit alignment, the inline compare_ether_addr function is much cheaper than calling memcmp. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-29mac80211: handle non-bufferable MMPDUs correctlyJohannes Berg1-2/+2
This renames the IEEE80211_TX_CTL_POLL_RESPONSE TX flag to IEEE80211_TX_CTL_NO_PS_BUFFER and also uses it for non-bufferable MMPDUs (all MMPDUs but deauth, disassoc and action frames.) Previously, mac80211 would let the MMPDU through but not set the flag so drivers supporting some hardware aids for avoiding the PS races would then reject the frame. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-27mac80211: fix sta_info_flush() return valueJohannes Berg1-1/+3
The comment for sta_info_flush() states "Returns the number of removed STA entries" but that isn't actually true. Consequently, the warning when a station is still around on interface removal can never trigger and this delayed finding the timer issue the previous patch fixed. Fix the return value here to make that warning useful again. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-09mac80211: add #ifdef CONFIG_MAC80211_VERBOSE_DEBUG for a debug printkFelix Fietkau1-0/+2
When not debugging mac80211 code, station state transitions do not need to show up in the kernel log. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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