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* cfg80211: regulatory: allow getting DFS CAC time from userspaceJanusz Dziedzic2014-02-256-16/+66
| | | | | | | | | | | | | Introduce DFS CAC time as a regd param, configured per REG_RULE and set per channel in cfg80211. DFS CAC time is close connected with regulatory database configuration. Instead of using hardcoded values, get DFS CAC time form regulatory database. Pass DFS CAC time to user mode (mainly for iw reg get, iw list, iw info). Allow setting DFS CAC time via CRDA. Add support for internal regulatory database. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> [rewrap commit log] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: regulatory: allow user to set world regdomainJanusz Dziedzic2014-02-251-3/+0
| | | | | | | | Allow to set world regulatory domain in case of user request (iw reg set 00). Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: regulatory: simplify uevent sendingJohannes Berg2014-02-252-30/+8
| | | | | | | There's no need for the struct device_type with the uevent function etc., just fill the country alpha2 when sending the event. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: ibss: handle cfg80211_chandef_dfs_required() error codesLuciano Coelho2014-02-211-0/+5
| | | | | | | | | Error codes returned by cfg80211_chandef_dfs_required() are ignored when trying to join an IBSS. Fix this by printing an error and returning. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: remove radar requirements check from cfg80211_can_use_iftype_chan()Luciano Coelho2014-02-213-34/+10
| | | | | | | | | | | | | We don't have to double check whether the parameters passed to cfg80211_can_use_iftype_chan() are correct. We should just make sure they *are* when we call this function. Remove the radar_detect argument check in cfg80211_can_use_iftype_chan() to simplify the code. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> [keep braces around a long comment + single statement] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* nl80211: make sure we check for DFS with mesh channel switchLuciano Coelho2014-02-211-5/+10
| | | | | | | | | | Since mesh support for DFS channels was added, we also need to check for DFS channels when performing a channel switch with NL80211_IFTYPE_MESHPOINT. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> [use switch statement, slight code cleanup] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: allow drivers to request SMPS offLuciano Coelho2014-02-211-2/+0
| | | | | | | | | Previously we were warning and using automatic when a driver sent an update request with SMPS off. This patch makes it possible for drivers to disable SMPS at runtime, for whatever reason. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: docbook: add interface combinations documentationLuciano Coelho2014-02-212-4/+10
| | | | | | | | | Add the ieee80211_iface_limit and the ieee80211_iface_combination structures to docbook. Reformat the examples of combinations slightly, so it looks a bit better on docbook. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: docbook: fix small formatting errorLuciano Coelho2014-02-211-1/+1
| | | | | | | | | | | | docbook (or one of its friends) gets confused with semi-colons in the argument descriptions, causing it to think that the semi-colon is marking a new section in the description of addr_mask in wiphy struct. Prevent this by using hyphens instead of semi-colons in the mask example. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: regulatory: introduce NL80211_RRF_AUTO_BW rule flagJanusz Dziedzic2014-02-214-43/+58
| | | | | | | | | | | | | | | | | | | | Introduce NL80211_RRF_AUTO_BW rule flag. If this flag set maximum available bandwidth should be calculated base on contiguous rules and wider channels will be allowed to cross multiple contiguous/overlapping frequency ranges. In case of old kernels maximum bandwidth from regulatory rule will be used, while there is no NL80211_RRF_AUTO_BW flag. This fixes the previous commit 9752482083066af7ac18a5ca376f ("cfg80211: regulatory introduce maximum bandwidth calculation") which was found to be a problem for userspace API compatibility. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> [edit commit log, use sizeof()] Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: allow driver to return error from sched_scan_stopJohannes Berg2014-02-205-10/+19
| | | | | | | | | In order to solve races with sched_scan_stop, it is necessary for the driver to be able to return an error to propagate that to cfg80211 so it doesn't send an event. Reviewed-by: Alexander Bondar <alexander.bondar@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: document sched_scan_stop synchronous behaviourJohannes Berg2014-02-202-3/+9
| | | | | | | | Due to userspace assumptions, the sched_scan_stop operation must be synchronous, i.e. once it returns a new scheduled scan must be able to start immediately. Document this in the API. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: Pass TDLS peer capability information in tdls_mgmtSunil Dutt Undekari2014-02-207-13/+47
| | | | | | | | | | | | | | | | While framing the TDLS Setup Confirmation frame, the driver needs to know if the TDLS peer is VHT/HT/WMM capable and thus shall construct the VHT/HT operation / WMM parameter elements accordingly. Supplicant determines if the TDLS peer is VHT/HT/WMM capable based on the presence of the respective IEs in the received TDLS Setup Response frame. The host driver should not need to parse the received TDLS Response frame and thus, should be able to rely on the supplicant to indicate the capability of the peer through additional flags while transmitting the TDLS Setup Confirmation frame through tdls_mgmt operations. Signed-off-by: Sunil Dutt Undekari <usdutt@qti.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge remote-tracking branch 'wireless-next/master' into mac80211-nextJohannes Berg2014-02-203101-52869/+211284
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| * Staging: rtl8812ae: remove modules field of rate_control_opsStephen Rothwell2014-02-131-1/+0
| | | | | | | | | | | | | | This has been removed in further work. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Update dtim period before starting BSSPontus Fuchs2014-02-131-0/+1
| | | | | | | | | | | | | | | | | | The dtim period sent to FW was 0 because the dtim period was never set. This caused an incorrect dtim count to be sent in beacons. Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Track dpu signature per staPontus Fuchs2014-02-133-4/+6
| | | | | | | | | | | | | | | | This fixes problems seen with multiple softap clients and reconnecting softap clients. Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Rename wcn36xx_vif.ucast_dpu_signature to self_ucast_dpu_signPontus Fuchs2014-02-133-3/+3
| | | | | | | | | | | | | | This is more line with the names of the other members Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Add support for 3680Pontus Fuchs2014-02-134-10/+36
| | | | | | | | | | | | | | 3680 has a few registers on other addresses. Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Print FW capabilitiesPontus Fuchs2014-02-133-6/+51
| | | | | | | | | | | | | | After fw caps exchange, print the FW's capabilities. Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Cache nv to avoid request_firmware on resume pathPontus Fuchs2014-02-133-12/+14
| | | | | | | | | | | | | | | | | | If wowlan if off mac80211 will stop / start the driver on suspend / resume. This causes problems on resume since request_firmware is called from start. Fix this by caching the nv. Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Wait longer for SMD commands to completePontus Fuchs2014-02-132-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | On some wcnss firmwares the start command can take up to 300ms to complete. Currently there is a 200ms timeout for SMD command to complete which causes the start to fail. Increase the timeout to 500ms. Also improve debug information regarding SMD command completion time. Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Improve feature caps exchangePontus Fuchs2014-02-133-7/+13
| | | | | | | | | | | | | | | | | | | | * Response format is not in the canonical format. wcn36xx_smd_rsp_status_check cannot be used. * Save the FW caps in wcn36xx struct for later use. Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wcn36xx: Fix copy paste error hal_exit_bmps -> hal_keep_alivePontus Fuchs2014-02-131-2/+2
| | | | | | | | | | Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: add support for STA CSA with chan contextsArik Nemtsov2014-02-131-1/+2
| | | | | | | | | | | | | | | | | | TI wl12xx/wl18xx cards support channel switch via a driver specific switch_channel op while operating with channel contexts. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: enable beacon filtering only after receiving a beaconEliad Peller2014-02-133-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabling beacon filtering before receving a beacon might result in not having a beacon at all for the current connected AP, which prevents the station from entering power-save. Replace the current approach (of starting beacon filtering on init) and configure beacon filering only after bss_conf->dtimper is set (which means mac80211 already parsed a beacon). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: increase timeout to 5000 msecsYaniv Machani2014-02-131-1/+1
| | | | | | | | | | | | | | | | | | dfs configuration command might take longer than the current timeout. increase it to 5 seconds. Signed-off-by: Yaniv Machani <yanivma@ti.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: decrease warning verbosity during recoveryArik Nemtsov2014-02-132-4/+5
| | | | | | | | | | | | | | | | | | | | | | Silently ignore repetitive scheduling of recovery work and commands being passed to the bus when the HW is not available. This can happen many times during recovery and slow it down. It also spams the kernel logs. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: consider multiple APs when checking active_link_countEliad Peller2014-02-132-10/+10
| | | | | | | | | | | | | | | | | | Each AP has its own global and broadcast links, so when checking for active sta count (according to the active_link_count) we must take them all into account. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: don't handle unsetting of default wep keyEliad Peller2014-02-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | mac80211 unsets the default wep key on disassoc. The fw doesn't support this notification, so simply ignore it. The actual flow actually triggers fw recovery in some cases, as mac80211 unsets the default key only after disassoc, when wlvif->sta.hlid, resulting in invalid hlid being passed to the fw. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: wl18xx: allow CCK rates for AP modeArik Nemtsov2014-02-133-1/+5
| | | | | | | | | | | | | | | | | | | | | | 12xx chips allow only OFDM rates in AP mode for BT-Coex purposes. This is no longer required in 18xx chips, starting with FW 8.6.0.0.8. Update the min allowed FW version in 18xx to support this functionality. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: don't stop sched_scan on interface removalBarak Bercovitz2014-02-131-3/+1
| | | | | | | | | | | | | | | | | | | | Stopping sched scan on interface removal (during recovery) is no longer needed, as sched scanning is automatically restarted by mac80211. Signed-off-by: Barak Bercovitz <barak@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: send EAPOL frames with voice priorityIgal Chernobelsky2014-02-132-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Send EAPOL frames with voice priority by setting (the new) TX_HW_ATTR_EAPOL_FRAME bit in tx attribute. Sending EAPOL with voice priority fixes re-key timeout issues during heavy traffic. Signed-off-by: Igal Chernobelsky <igalc@ti.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wl18xx: move to new firmware (wl18xx-fw-3.bin)Eliad Peller2014-02-139-15/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bump the min wl18xx fw version to 8.8.0.0.13 This fw is not backward compatible with older firmware (due to api changes), so use bump the firmware name as well. Some modifications were done to the driver-fw api in order to support multiple APs. Additionally, some of the consts (such as max stations, max links and max RX BA sessions) were changed. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore/wl12xx/wl18xx: configure iface_combinations per-hwEliad Peller2014-02-134-30/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each hw supports a different iface combinations. Define the supported combinations in each driver, and save it in wl->iface_combinations. Since each driver defines its own combinations now, it can also define its max supported channels, so we no longer need to save and set it explicitly in wlcore. Update wl18xx interface combinations to allow multiple APs. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore/wl12xx/wl18xx: configure max_stations per-hwEliad Peller2014-02-137-5/+9
| | | | | | | | | | | | | | | | | | Each hw supports a different max stations (connected to the same ap). add a new wl->max_ap_stations and use it instead of the current common AP_MAX_STATIONS. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore/wl12xx/wl18xx: configure num_links per-hwEliad Peller2014-02-1311-30/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | Upcoming fw versions will have different max links support (according to the hw). Get ready for it by configuring wl->num_links per-hw, instead of using the const WL12XX_MAX_LINKS. However, continue using WLCORE_MAX_LINKS in order to simplify structs declarations (we use it in multiple bitmaps, and converting them to dynamic arrays is just cumbersome). Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore/wl12xx/wl18xx: simplify fw_status handlingEliad Peller2014-02-1312-103/+277
| | | | | | | | | | | | | | | | | | | | | | | | Instead of splitting the fw_status into 2 and using some complex calculations, read the fw status and let each low-level driver (wl12xx/wl18xx) convert it into a common struct. This is required for the upcoming fw api changes, which break the current logic anyway. Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: AP: don't start mac80211 PS on non-peer HLIDsArik Nemtsov2014-02-131-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | It seems the wl18xx FW sometimes sends spurious changes on the PSM state of the broadcast HLID. This causes us to search for a station on a non-peer link and fail, causing warnings in our log. Prevent the driver from considering PSM changes for any non-peer HLIDs. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: block read/writes to FW during ELPBarak Bercovitz2014-02-131-2/+6
| | | | | | | | | | | | | | | | | | | | | | When the chip is in ELP mode read/write to FW is invalid and may cause the lower layers to get stuck. The reads/writes concerning ELP wakeup are the exception here and are checked for. In addition to blocking the IO, produce a warning. Signed-off-by: Barak Bercovitz <barak@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: cancel Tx watchdog on suspend and rearm on first Tx afterArik Nemtsov2014-02-133-2/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes a tx_flush during suspend fails, but the FW manages to flush out the packets during the time when the host is supsended. Cancel the Tx-watchdog on suspend to not cause a spurious recovery on resume for that case. Set a flag to reinit the watchdog on the first Tx after resume, so we'll still recover if the FW is not empty and there's indeed a problem. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * wlcore: memset wl->rx_filter_enabled to zero after recoveryNadim Zubidat2014-02-133-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | zero rx_filter_enabled array after recovery to avoid cases were the driver will keep trying to clear a filter which is not configured in FW. Such case will cause consecutive recoveries due to command execution failures. While on it, convert rx_filter_enabled to bitmap, to save some memory and make sparse happy (it doesn't like sizeof(bool array)). Signed-off-by: Nadim Zubidat <nadimz@ti.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * b43: use kernel api to replace b43 specific helper functionZHAO Gang2014-02-132-41/+6
| | | | | | | | | | | | | | | | Use ieee80211_channel_to_frequency() to replace b43_channel_to_freq_{2,5}ghz(), and remove unused b43_freq_to_channel_{2,5}ghz(). Signed-off-by: ZHAO Gang <gamerh2o@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * Merge branch 'master' of ↵John W. Linville2014-02-1330-159/+256
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
| | * rtl8180: Add error check for pci_map_single return value in TX pathandrea.merello2014-02-061-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Orignal code will not detect a DMA mapping failure, causing the HW to attempt a DMA from an invalid address. This patch add the error check and eventually simply drops the TX packet if we can't map it for DMA. Signed-off-by: andrea merello <andrea.merello@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * rtl8180: Add error check for pci_map_single return value in RX pathandrea.merello2014-02-061-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In original code the old RX DMA buffer is unmapped and processed and at the end of the isr a new buffer is mapped with pci_map_single and attached to the RX descriptor. If pci_map_single fails then the RX descriptor remains with no valid DMA buffer attached. In this condition the DMA will target where it shouldn't with obvious evil consequences. Simply avoiding re-arming the descriptor will prevent buggy DMA but it will result soon in RX stuck. This patch move the DMA mapping of the new buffer at the beginning of the ISR (and it adds error check for pci_map_single success/fail). If the DMA mapping fails then we do not unmap the old buffer and we re-arm the descriptor without processing it, with the old DMA buffer still attached. In this way we lose the currently RX-ed packet, but whenever next calls to pci_map_single will succeed again,then the RX process will go on without stuck. Signed-off-by: andrea merello <andrea.merello@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * Merge branch 'for-john' of ↵John W. Linville2014-02-0611-83/+102
| | |\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
| | | * mac80211: fix virtual monitor interface iterationJohannes Berg2014-02-061-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During channel context assignment, the interface should be found by interface iteration, so we need to assign the pointer before the channel context. Reported-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Tested-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | | * mac80211: fix fragmentation code, particularly for encryptionJohannes Berg2014-02-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "new" fragmentation code (since my rewrite almost 5 years ago) erroneously sets skb->len rather than using skb_trim() to adjust the length of the first fragment after copying out all the others. This leaves the skb tail pointer pointing to after where the data originally ended, and thus causes the encryption MIC to be written at that point, rather than where it belongs: immediately after the data. The impact of this is that if software encryption is done, then a) encryption doesn't work for the first fragment, the connection becomes unusable as the first fragment will never be properly verified at the receiver, the MIC is practically guaranteed to be wrong b) we leak up to 8 bytes of plaintext (!) of the packet out into the air This is only mitigated by the fact that many devices are capable of doing encryption in hardware, in which case this can't happen as the tail pointer is irrelevant in that case. Additionally, fragmentation is not used very frequently and would normally have to be configured manually. Fix this by using skb_trim() properly. Cc: stable@vger.kernel.org Fixes: 2de8e0d999b8 ("mac80211: rewrite fragmentation") Reported-by: Jouni Malinen <j@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | | * mac80211: Fix IBSS disconnectSujith Manoharan2014-02-061-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, when a station leaves an IBSS network, the corresponding BSS is not dropped from cfg80211 if there are other active stations in the network. But, the small window that is present when trying to determine a station's status based on IEEE80211_IBSS_MERGE_INTERVAL introduces a race. Instead of trying to keep the BSS, always remove it when leaving an IBSS network. There is not much benefit to retain the BSS entry since it will be added with a subsequent join operation. This fixes an issue where a dangling BSS entry causes ath9k to wait for a beacon indefinitely. Cc: <stable@vger.kernel.org> Reported-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-24 14:54:14 +0100