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* Backport mac80211 from 3.4 kernelWolfgang Wiedmeyer2017-01-211-332/+773
| | | | | | | | | The ath9k_htc driver depends on mac80211, but mac80211 can't be build. The reason is that net/wireless is almost completely backported from a 3.4 kernel. To follow suit, mac80211 is also backported from 3.4, more precisely from 3.4.113. This makes mac80211 build. Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
* Merge remote-tracking branch 'kernelorg/linux-3.0.y' into 3_0_64Andrew Dodd2013-02-271-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/arm/Kconfig arch/arm/include/asm/hwcap.h arch/arm/kernel/smp.c arch/arm/plat-samsung/adc.c drivers/gpu/drm/i915/i915_reg.h drivers/gpu/drm/i915/intel_drv.h drivers/mmc/core/sd.c drivers/net/tun.c drivers/net/usb/usbnet.c drivers/regulator/max8997.c drivers/usb/core/hub.c drivers/usb/host/xhci.h drivers/usb/serial/qcserial.c fs/jbd2/transaction.c include/linux/migrate.h kernel/sys.c kernel/time/timekeeping.c lib/genalloc.c mm/memory-failure.c mm/memory_hotplug.c mm/mempolicy.c mm/page_alloc.c mm/vmalloc.c mm/vmscan.c mm/vmstat.c scripts/Kbuild.include Change-Id: I91e2d85c07320c7ccfc04cf98a448e89bed6ade6
| * mac80211: use del_timer_sync for final sta cleanup timer deletionJohannes Berg2013-01-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit a56f992cdabc63f56b4b142885deebebf936ff76 upstream. 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.) Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | samsung update 1codeworkx2012-06-021-0/+1
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* mac80211: fix missing sta_lock in __sta_info_destroyJohannes Berg2011-10-031-1/+1
| | | | | | | | | | | | | | | | commit 4bae7d976976fa52d345805ba686934cd548343e upstream. Since my commit 34e895075e21be3e21e71d6317440d1ee7969ad0 ("mac80211: allow station add/remove to sleep") there is a race in mac80211 when it clears the TIM bit because a sleeping station disconnected, the spinlock isn't held around the relevant code any more. Use the right API to acquire the spinlock correctly. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'master' of ↵John W. Linville2011-05-161-7/+12
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/iwlwifi/iwl-agn-tx.c net/mac80211/sta_info.h
| * nl80211: Move peer link state definition to nl80211Javier Cardona2011-05-161-1/+1
| | | | | | | | | | | | | | | | | | These definitions need to be exposed now that we can set the peer link states via NL80211_ATTR_STA_PLINK_STATE. They were already being (opaquely) reported by NL80211_STA_INFO_PLINK_STATE. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: sparse RCU annotationsJohannes Berg2011-05-161-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds sparse RCU annotations to most of mac80211, only the mesh code remains to be done. Due the the previous patches, the annotations are pretty simple. The only thing that this actually changes is removing the RCU usage of key->sta in debugfs since this pointer isn't actually an RCU-managed pointer (it only has a single assignment done before the key even goes live). As that is otherwise harmless, I decided to make it part of this patch. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: fix another key non-raceJohannes Berg2011-05-121-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | The code here is only not racy because all the places that assign the pointers it uses are holding the sta_mtx as well as the key_mtx and so can't race against this because this code holds the sta_mtx. But that's not intuitive, so fix it to hold the key_mtx. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-05-051-2/+0
|\ \ | |/ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/libertas/if_cs.c drivers/net/wireless/rtlwifi/pci.c net/bluetooth/l2cap_sock.c
| * mac80211: Fix warnings due to -Wunused-but-set-variableRajkumar Manoharan2011-04-261-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-04-251-1/+15
|\ \ | |/ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/iwlwifi/iwl-core.c drivers/net/wireless/rt2x00/rt2x00queue.c drivers/net/wireless/rt2x00/rt2x00queue.h
| * mac80211: add a function for setting the TIM bit for a specific stationFelix Fietkau2011-04-191-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | This allows a driver to buffer frames for a PS station and tell mac80211 to wake it up even though mac80211 does not have any buffered frames for it. This is necessary for properly handling aggregation related buffering, in ath9k, because the driver needs to keep its frames in order to keep track of the Block-ACK window. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * {mac|nl}80211: Add station connected timeMohammed Shafi Shajakhan2011-04-121-0/+3
| | | | | | | | | | | | | | | | | | Add station connected time in debugfs. This will be helpful to get a measure of stability of the connection and for debugging stress issues Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵John W. Linville2011-04-121-11/+4
|\ \ | |/ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/ath/ar9170/main.c drivers/net/wireless/ath/ar9170/phy.c drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
| * mac80211: clean up station cleanup timerJohannes Berg2011-04-041-11/+2
| | | | | | | | | | | | | | | | | | | | | | We currently run this timer exactly once when a new mac80211 device is registered, but that is completely pointless since it will have no work to do at all. Therefore, remove that and also simplify some code using the timer. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * cfg80211: Add nl80211 event for deletion of a station entryJouni Malinen2011-03-301-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Indicate an NL80211_CMD_DEL_STATION event when a station entry in mac80211 is deleted to match with the NL80211_CMD_NEW_STATION event that is used when the entry was added. This is needed, e.g., to allow user space to remove a peer from RSN IBSS Authenticator state machine to avoid re-authentication and re-keying delays when the peer is not reachable anymore. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Fix common misspellingsLucas De Marchi2011-03-311-2/+2
|/ | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* mac80211: initialize sta->last_rx in sta_info_allocFelix Fietkau2011-03-211-0/+1
| | | | | | | | | | | This field is used to determine the inactivity time. When in AP mode, hostapd uses it for kicking out inactive clients after a while. Without this patch, hostapd immediately deauthenticates a new client if it checks the inactivity time before the client sends its first data frame. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add HW flag for disabling auto link-PS in AP modeArik Nemtsov2011-02-031-1/+2
| | | | | | | | | | | | | When operating in AP mode the wl1271 hardware filters out null-data packets as well as management packets. This makes it impossible for mac80211 to monitor the PS mode by using the PM bit of incoming frames. Implement a HW flag to indicate that mac80211 should ignore the PM bit. In addition, expose ieee80211_sta_ps_transition() to make low-level drivers capable of controlling PS-mode. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211/mac80211: Report signal averageBruno Randolf2010-12-071-0/+2
| | | | | | | | | | | | | | Extend nl80211 to report an exponential weighted moving average (EWMA) of the signal value. Since the signal value usually fluctuates between different packets, an average can be more useful than the value of the last packet. This uses the recently added generic EWMA library function. -- v2: fix ABI breakage and change factor to be a power of 2. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Revert "nl80211/mac80211: Report signal average"John W. Linville2010-11-241-2/+0
| | | | | | | | This reverts commit 86107fd170bc379869250eb7e1bd393a3a70e8ae. This patch inadvertantly changed the userland ABI. Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nl80211/mac80211: Report signal averageBruno Randolf2010-11-181-0/+2
| | | | | | | | | | | Extend nl80211 to report an exponential weighted moving average (EWMA) of the signal value. Since the signal value usually fluctuates between different packets, an average can be more useful than the value of the last packet. This uses the recently added generic EWMA library function. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix powersaving clients racesJohannes Berg2010-11-171-3/+14
| | | | | | | | | | | | | | | | | | | | | | The code to handle powersaving stations has a race: when the powersave flag is lifted from a station, we could transmit a packet that is being processed for TX at the same time right away, even if there are other frames queued for it. This would cause frame reordering. To fix this, lift the flag only under the appropriate lock that blocks TX. Additionally, the code to allow drivers to block a station while frames for it are on the HW queue is never re-enabled the station, so traffic would get stuck indefinitely. Fix this by clearing the flag for this appropriately. Finally, as an optimisation, don't do anything if the driver unblocks an already unblocked station. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211/mac80211: allow per-station GTKsJohannes Berg2010-10-061-5/+5
| | | | | | | | | | This adds API to allow adding per-station GTKs, updates mac80211 to support it, and also allows drivers to remove a key from hwaccel again when this may be necessary due to multiple GTKs. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: avoid transmitting delBA to old APJohannes Berg2010-10-061-1/+1
| | | | | | | | | | | | | | | | | When roaming while we have active BA session, we can end up transmitting delBA frames to the old AP while we're already on the new AP's channel, which can cause warnings. Simply avoid sending those frames, but still tear down the internal session state, since they are not really necessary anyway as we will implicitly disassociate when sending the association to the new AP. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211/ath9k: Support AMPDU with multiple VIFs.Ben Greear2010-09-271-4/+11
| | | | | | | | | | | | | | | | The old ieee80211_find_sta_by_hw method didn't properly find VIFS when there was more than one per AP. This caused AMPDU logic in ath9k to get the wrong VIF when trying to account for transmitted SKBs. This patch changes ieee80211_find_sta_by_hw to take a localaddr argument to distinguish between VIFs with the same AP but different local addresses. The method name is changed to ieee80211_find_sta_by_ifaddr. Signed-off-by: Ben Greear <greearb@candelatech.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* cfg80211/mac80211: use lockdep_assert_heldJohannes Berg2010-09-161-1/+1
| | | | | | | | | | | | Instead of using a WARN_ON(!mutex_is_locked()) use lockdep_assert_held() which compiles away completely when lockdep isn't enabled, and also is a more accurate assertion since it checks that the current thread is holding the mutex. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: match only assigned bss in sta_info_get_bssJohannes Berg2010-09-141-1/+1
| | | | | | | | | | | | sta_info_get_bss() is used to match STA pointers for VLAN/AP interfaces, but if the same station is also added to multiple other interfaces it will erroneously match because both pointers are NULL, fix this by ignoring NULL pointers here. Reported-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* net/mac80211: Use wiphy_<level>Joe Perches2010-08-251-12/+9
| | | | | | | | | | Standardize logging messages from printk(KERN_<level> "%s: " fmt , wiphy_name(foo), args); to wiphy_<level>(foo, fmt, args); Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Fix key freeing to handle unlinked keysJouni Malinen2010-07-271-1/+1
| | | | | | | | | | | | | | | | | | | Key locking simplification removed key->sdata != NULL verification from ieee80211_key_free(). While that is fine for most use cases, there is one path where this function can be called with an unlinked key (i.e., key->sdata == NULL && key->local == NULL). This results in a NULL pointer dereference with the current implementation. This is known to happen at least with FT protocol when wpa_supplicant tries to configure the key before association. Avoid the issue by passing in the local pointer to ieee80211_key_free(). In addition, do not clear the key from hw_accel or debugfs if it has not yet been added. At least the hw_accel one could trigger another NULL pointer dereference. Signed-off-by: Jouni Malinen <j@w1.fi> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵David S. Miller2010-06-171-7/+7
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
| * mac80211: change RX aggregation lockingJohannes Berg2010-06-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | To prepare for allowing drivers to sleep in ampdu_action, change the locking in the RX aggregation code to use a mutex, so that it would already allow drivers to sleep. But explicitly disable BHs around the callback for now since the TX part cannot yet sleep, and drivers' locking might require it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: move BA session workJohannes Berg2010-06-141-1/+1
| | | | | | | | | | | | | | | | | | Move the block-ack session works into common code, since it will be needed for RX agg too in the next patches. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: make TX aggregation start/stop request asyncJohannes Berg2010-06-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the driver or rate control requests starting or stopping an aggregation session, that currently causes a direct callback into the driver, which could potentially cause locking problems. Also, the functions need to be callable from contexts that cannot sleep, and thus will interfere with making the ampdu_action callback sleeping. To address these issues, add a new work item for each station that will process any start or stop requests out of line. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: use RCU for TX aggregationJohannes Berg2010-06-141-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | Currently we allocate some memory for each TX aggregation session and additionally keep a state bitmap indicating the state it is in. By using RCU to protect the pointer, moving the state into the structure and some locking trickery we can avoid locking when the TX agg session is fully operational. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge branch 'master' of ↵David S. Miller2010-06-111-8/+0
|\ \ | |/ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 Conflicts: drivers/net/wireless/wl12xx/wl1271.h drivers/net/wireless/wl12xx/wl1271_cmd.h
| * mac80211: simplify key lockingJohannes Berg2010-06-031-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Since I recently made station management able to sleep, I can now rework key management as well; since it will no longer need a spinlock and can also use a mutex instead, a bunch of code to allow drivers' set_key to sleep while key management is protected by a spinlock can now be removed. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, ↵Alexey Dobriyan2010-05-251-1/+1
|/ | | | | | | | | | | | | | | | SHRT_MAX and SHRT_MIN - C99 knows about USHRT_MAX/SHRT_MAX/SHRT_MIN, not USHORT_MAX/SHORT_MAX/SHORT_MIN. - Make SHRT_MIN of type s16, not int, for consistency. [akpm@linux-foundation.org: fix drivers/dma/timb_dma.c] [akpm@linux-foundation.org: fix security/keys/keyring.c] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mac80211: fix ieee80211_find_sta[_by_hw]Johannes Berg2010-05-031-4/+13
| | | | | | | | | | | | Both of these functions can currently return a station pointer that, to the driver, is invalid (in IBSS mode only) because adding the station failed. Check for that, and also make ieee80211_find_sta() properly use the per interface station search. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Prevent running sta_cleanup timer unnecessarilyJuuso Oikarinen2010-04-191-3/+10
| | | | | | | | | | | | | The sta_cleanup timer is used to periodically expire buffered frames from the tx buf. The timer is executing periodically, regardless of the need for it. This is wasting resources. Fix this simply by not restarting the sta_cleanup timer if the tx buffer was empty. Restart the timer when there is some more tx-traffic. Cc: Janne Ylälehto <janne.ylalehto@nokia.com> Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: enhance tracingJohannes Berg2010-04-081-0/+2
| | | | | | | | | | | | | Enhance tracing by adding tracing for a variety of callbacks that the drivers call, and also for internal calls (currently limited to queue status). This can aid debugging what is going on in mac80211 in interaction with drivers, since we can now see what drivers call and not just what mac80211 calls in the driver. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵John W. Linville2010-04-081-4/+17
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into merge Conflicts: Documentation/feature-removal-schedule.txt drivers/net/wireless/ath/ath5k/phy.c drivers/net/wireless/iwlwifi/iwl-4965.c drivers/net/wireless/iwlwifi/iwl-agn.c drivers/net/wireless/iwlwifi/iwl-core.c drivers/net/wireless/iwlwifi/iwl-core.h drivers/net/wireless/iwlwifi/iwl-tx.c
| * mac80211: annotate station rcu dereferencesJohannes Berg2010-04-061-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The new RCU lockdep support warns about these in some contexts -- make it aware of the locks used to protect all this. Different locks are used in different contexts which unfortunately means we can't get perfect checking. Also remove rcu_dereference() from two places that don't actually dereference the pointers. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * mac80211: Fix sta_mtx unlocking on insert STA failure pathJouni Malinen2010-03-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Commit 34e895075e21be3e21e71d6317440d1ee7969ad0 introduced sta_mtx locking into sta_info_insert() (now sta_info_insert_rcu), but forgot to unlock this mutex on one of the error paths. Fix this by adding the missing mutex_unlock() call for the case where STA insert fails due to an entry existing already. This may happen at least in AP mode when a STA roams between two BSSes (vifs). Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: clean up/fix aggregation codeJohannes Berg2010-04-071-48/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The aggregation code has a number of quirks, like inventing an unneeded WLAN_BACK_TIMER value and leaking memory under certain circumstances during station destruction. Fix these issues by using the regular aggregation session teardown code and blocking new aggregation sessions, all before the station is really destructed. As a side effect, this gets rid of the long code block to destroy aggregation safely. Additionally, rename tid_state_rx which can only have the values IDLE and OPERATIONAL to tid_active_rx to make it easier to understand that there is no bitwise stuff going on on the RX side -- the TX side remains because it needs to keep track of the driver and peer states. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: fix station destruction problemJohannes Berg2010-04-071-6/+9
|/ | | | | | | | | | | | | | | | | | | | | When a station w/o a key is destroyed, or when a driver submits work for a station and thereby references it again, it seems like potentially we could reference the station structure while it is being destroyed. Wait for an RCU grace period to elapse before finishing destroying the station after we have removed the station from the driver and from the hash table etc., even in the case where no key is associated with the station. Also, there's no point in deleting the plink timer here since it'll be properly deleted just a bit later. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: allow station add/remove to sleepJohannes Berg2010-02-081-368/+363
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many drivers would like to sleep during station addition and removal, and currently have a high complexity there from not being able to. This introduces two new callbacks sta_add() and sta_remove() that drivers can implement instead of using sta_notify() and that can sleep, and the new sta_add() callback is also allowed to fail. The reason we didn't do this previously is that the IBSS code wants to insert stations from the RX path, which is a tasklet, so cannot sleep. This patch will keep the station allocation in that path, but moves adding the station to the driver out of line. Since the addition can now fail, we can have IBSS peer structs the driver rejected -- in that case we still talk to the station but never tell the driver about it in the control.sta pointer. If there will ever be a driver that has a low limit on the number of stations and that cannot talk to any stations that are not known to it, we need to do come up with a new strategy of handling larger IBSSs, maybe quicker expiry or rejecting peers. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: allow station updates on ap interfaces for vlan stationsFelix Fietkau2010-01-121-0/+21
| | | | | | | | | | | Since the per-vif station changes, sta_info_get on the ap sdata no longer returns entries for stations on ap vlans. This causes issues with hostapd, which currently always passes the ap interface name to nl80211 calls. This patch provides bug compatibility with the earlier versions until hostapd is fixed. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211/cfg80211: add station eventsJohannes Berg2009-12-281-0/+5
| | | | | | | | | When, for instance, a new IBSS peer is found, userspace wants to be notified. Add events for all new stations that mac80211 learns about. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.1 at 2024-05-29 22:45:57 +0000