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2022-08-25wifi: mac80211: mlme: don't add empty EML capabilitiesMordechay Goodstein
Draft P802.11be_D2.1, section 35.3.17 states that the EML Capabilities Field shouldn't be included in case the device doesn't have support for EMLSR or EMLMR. Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: use link ID for MLO in queued framesJohannes Berg
When queuing frames to an interface store the link ID we determined (which possibly came from the driver in the RX status in the first place) in the RX status, and use it in the MLME code to send probe responses, beacons and CSA frames to the right link. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: use the corresponding link for stats updateVasanthakumar Thiagarajan
With link_id reported in rx_status for MLO connection, do the stats update on the appropriate link instead of always deflink. Signed-off-by: Vasanthakumar Thiagarajan <quic_vthiagar@quicinc.com> Link: https://lore.kernel.org/r/20220817104213.2531-3-quic_vthiagar@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: add link information in ieee80211_rx_statusVasanthakumar Thiagarajan
In MLO, when the address translation from link to MLD is done in fw/hw, it is necessary to be able to have some information on the link on which the frame has been received. Extend the rx API to include link_id and a valid flag in ieee80211_rx_status. Also make chanes to mac80211 rx APIs to make use of the reported link_id after sanity checks. Signed-off-by: Vasanthakumar Thiagarajan <quic_vthiagar@quicinc.com> Link: https://lore.kernel.org/r/20220817104213.2531-2-quic_vthiagar@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: properly implement MLO key handlingJohannes Berg
Implement key installation and lookup (on TX and RX) for MLO, so we can use multiple GTKs/IGTKs/BIGTKs. Co-authored-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: cfg80211: Add link_id parameter to various key operations for MLOVeerendranath Jakkam
Add support for various key operations on MLD by adding new parameter link_id. Pass the link_id received from userspace to driver for add_key, get_key, del_key, set_default_key, set_default_mgmt_key and set_default_beacon_key to support configuring keys specific to each MLO link. Userspace must not specify link ID for MLO pairwise key since it is common for all the MLO links. Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com> Link: https://lore.kernel.org/r/20220730052643.1959111-4-quic_vjakkam@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: fix use-after-freeJohannes Berg
We've already freed the assoc_data at this point, so need to use another copy of the AP (MLD) address instead. Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: use link in TXQ parameter configurationShaul Triebitz
Configure the correct link per the passed parameters. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: set link BSSIDShaul Triebitz
For an AP interface, set the link BSSID when the link is initialized. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: properly set old_links when removing a linkShaul Triebitz
In ieee80211_sta_remove_link, valid_links is set to the new_links before calling drv_change_sta_links, but is used for the old_links. Fixes: cb71f1d136a6 ("wifi: mac80211: add sta link addition/removal") Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: accept STA changes without link changesJohannes Berg
If there's no link ID, then check that there are no changes to the link, and if so accept them, unless a new link is created. While at it, reject creating a new link without an address. This fixes authorizing an MLD (peer) that has no link 0. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: potential NULL dereference in ieee80211_tx_control_port()Dan Carpenter
The ieee80211_lookup_ra_sta() function will sometimes set "sta" to NULL so add this NULL check to prevent an Oops. Fixes: 9dd1953846c7 ("wifi: nl80211/mac80211: clarify link ID in control port TX") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YuKcTAyO94YOy0Bu@kili Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: Don't finalize CSA in IBSS mode if state is disconnectedSiddh Raman Pant
When we are not connected to a channel, sending channel "switch" announcement doesn't make any sense. The BSS list is empty in that case. This causes the for loop in cfg80211_get_bss() to be bypassed, so the function returns NULL (check line 1424 of net/wireless/scan.c), causing the WARN_ON() in ieee80211_ibss_csa_beacon() to get triggered (check line 500 of net/mac80211/ibss.c), which was consequently reported on the syzkaller dashboard. Thus, check if we have an existing connection before generating the CSA beacon in ieee80211_ibss_finish_csa(). Cc: stable@vger.kernel.org Fixes: cd7760e62c2a ("mac80211: add support for CSA in IBSS mode") Link: https://syzkaller.appspot.com/bug?id=05603ef4ae8926761b678d2939a3b2ad28ab9ca6 Reported-by: syzbot+b6c9fe29aefe68e4ad34@syzkaller.appspotmail.com Signed-off-by: Siddh Raman Pant <code@siddh.me> Tested-by: syzbot+b6c9fe29aefe68e4ad34@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20220814151512.9985-1-code@siddh.me Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: fix possible leak in ieee80211_tx_control_port()Yang Yingliang
Add missing dev_kfree_skb() in an error path in ieee80211_tx_control_port() to avoid a memory leak. Fixes: dd820ed6336a ("wifi: mac80211: return error from control port TX for drops") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220818043349.4168835-1-yangyingliang@huawei.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: always free sta in __sta_info_alloc in case of errorLorenzo Bianconi
Free sta pointer in __sta_info_alloc routine if sta_info_alloc_link() fails. Fixes: 246b39e4a1ba5 ("wifi: mac80211: refactor some sta_info link handling") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/a3d079208684cddbc25289f7f7e0fed795b0cad4.1661260857.git.lorenzo@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-25wifi: mac80211: Fix UAF in ieee80211_scan_rx()Siddh Raman Pant
ieee80211_scan_rx() tries to access scan_req->flags after a null check, but a UAF is observed when the scan is completed and __ieee80211_scan_completed() executes, which then calls cfg80211_scan_done() leading to the freeing of scan_req. Since scan_req is rcu_dereference()'d, prevent the racing in __ieee80211_scan_completed() by ensuring that from mac80211's POV it is no longer accessed from an RCU read critical section before we call cfg80211_scan_done(). Cc: stable@vger.kernel.org Link: https://syzkaller.appspot.com/bug?extid=f9acff9bf08a845f225d Reported-by: syzbot+f9acff9bf08a845f225d@syzkaller.appspotmail.com Suggested-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Siddh Raman Pant <code@siddh.me> Link: https://lore.kernel.org/r/20220819200340.34826-1-code@siddh.me Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-08-05Merge tag 'trace-v6.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: - Runtime verification infrastructure This is the biggest change here. It introduces the runtime verification that is necessary for running Linux on safety critical systems. It allows for deterministic automata models to be inserted into the kernel that will attach to tracepoints, where the information on these tracepoints will move the model from state to state. If a state is encountered that does not belong to the model, it will then activate a given reactor, that could just inform the user or even panic the kernel (for which safety critical systems will detect and can recover from). - Two monitor models are also added: Wakeup In Preemptive (WIP - not to be confused with "work in progress"), and Wakeup While Not Running (WWNR). - Added __vstring() helper to the TRACE_EVENT() macro to replace several vsnprintf() usages that were all doing it wrong. - eprobes now can have their event autogenerated when the event name is left off. - The rest is various cleanups and fixes. * tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (50 commits) rv: Unlock on error path in rv_unregister_reactor() tracing: Use alignof__(struct {type b;}) instead of offsetof() tracing/eprobe: Show syntax error logs in error_log file scripts/tracing: Fix typo 'the the' in comment tracepoints: It is CONFIG_TRACEPOINTS not CONFIG_TRACEPOINT tracing: Use free_trace_buffer() in allocate_trace_buffers() tracing: Use a struct alignof to determine trace event field alignment rv/reactor: Add the panic reactor rv/reactor: Add the printk reactor rv/monitor: Add the wwnr monitor rv/monitor: Add the wip monitor rv/monitor: Add the wip monitor skeleton created by dot2k Documentation/rv: Add deterministic automata instrumentation documentation Documentation/rv: Add deterministic automata monitor synthesis documentation tools/rv: Add dot2k Documentation/rv: Add deterministic automaton documentation tools/rv: Add dot2c Documentation/rv: Add a basic documentation rv/include: Add instrumentation helper functions rv/include: Add deterministic automata monitor definition via C macros ...
2022-07-24mac80211: tracing: Use the new __vstring() helperSteven Rostedt (Google)
Instead of open coding a __dynamic_array() with a fixed length (which defeats the purpose of the dynamic array in the first place). Use the new __vstring() helper that will use a va_list and only write enough of the string into the ring buffer that is needed. Link: https://lkml.kernel.org/r/20220705224751.271015450@goodmis.org Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-07-22wifi: mac80211: fix link data leakJohannes Berg
During the code reshuffling, I accidentally set this to NULL before using it, fix that to fix the link data leak. Fixes: d3e2439b0f33 ("wifi: mac80211: fix link manipulation") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: mlme: fix disassoc with MLOJohannes Berg
In MLO we shouldn't call ieee80211_bss_info_change_notify(), call that only (for backward compatibility) without MLO, and otherwise ieee80211_vif_cfg_change_notify(). Similarly, ieee80211_reset_erp_info() only applies to the current link, and in MLO we assume the driver doesn't really need that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: remove erroneous sband/link validationJohannes Berg
In sta_apply_parameters(), we really no longer need to check that the link or sband exists, in fact, that's harmful if link 0 doesn't exist, since then this will fail. Just remove this check, it was added for validation of the sband where used, but it's not used here, it's now only used in sta_link_apply_parameters() which has an own lookup and check. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: mlme: transmit assoc frame with address translationJohannes Berg
To transmit the association frame to the right station and with address translation, use the correct addresses there and set up the AP address in the configuration earlier so it's applied during the transmit of auth/assoc frames. Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: verify link addresses are differentJohannes Berg
When adding multiple links, verify that they all have different addresses. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: rx: track link in RX dataJohannes Berg
We'll need the link e.g. for decrypt, and shouldn't be looking it up all the time later, so track it in the RX data. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: optionally implement MLO multicast TXJohannes Berg
For drivers using software encryption for multicast TX, such as mac80211_hwsim, mac80211 needs to duplicate the multicast frames on each link, if MLO is enabled. Do this, but don't just make it dependent on the key but provide a separate flag for drivers to opt out of this. This is not very efficient, I expect that drivers will do it in firmware/hardware or at least with DMA engine assistence, so this is mostly for hwsim. To make this work, also implement the SNS11 sequence number space that an AP MLD shall have, and modify the API to the __ieee80211_subif_start_xmit() function to always require the link ID bits to be set. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: expand ieee80211_mgmt_tx() for MLOJohannes Berg
There are a couple of new things that should be possible with MLO: * selecting the link to transmit to a station by link ID, which a previous patch added to the nl80211 API * selecting the link by frequency, similarly * allowing transmittion to an MLD without specifying any channel or link ID, with MLD addresses Enable these use cases. Also fix the address comparison in client mode to use the AP (MLD) address. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: report link ID to cfg80211 on mgmt RXJohannes Berg
For frames received on an MLD, report the link ID to userspace. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: add hardware timestamps for RX and TXAvraham Stern
When the low level driver reports hardware timestamps for frame TX status or frame RX, pass the timestamps to cfg80211. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: sta_info: fix link_sta insertionJohannes Berg
When inserting a link STA, make sure it doesn't exist first and add lockdep assertions that we cannot modify the hash table without holding the sta_mtx, so this check is really correct. Also return without hashing if the driver failed, and warn if the hashing fails, which shouldn't happen due to the check described above. Fixes: cb71f1d136a6 ("wifi: mac80211: add sta link addition/removal") Fixes: ba6ddab94fc6 ("wifi: mac80211: maintain link-sta hash table") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: mlme: fix link_sta setupJohannes Berg
We need to copy the address to both the private and public portion of the link_sta (the private one is needed for the hash table). Fix this. Fixes: bbe90107e1d9 ("wifi: mac80211: mlme: refactor link station setup") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: nl80211/mac80211: clarify link ID in control port TXJohannes Berg
Clarify the link ID behaviour in control port TX, we need it to select the link to transmit on for both MLD and non-MLD receivers, but select the link address as the SA only if the receiver is not an MLD. Fixes: 67207bab9341 ("wifi: cfg80211/mac80211: Support control port TX from specific link") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: return error from control port TX for dropsJohannes Berg
If the frame is going to be dropped anyway because ieee80211_lookup_ra_sta() returned an error (and even though it's a bit racy, it will likely continue to do so), return the error out instead of just silently dropping the frame. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: more station handling sanity checksJohannes Berg
Add more sanity checks to the API handling, we shouldn't be able to create a station without links, nor should we be able to add a link to a station that wasn't created as an MLD with links in the first place. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: fix link sta hash table handlingJohannes Berg
There are two issues here: we unhash the link stations only directly before freeing the station they belong to, and we also don't unhash all the links correctly in all cases. Fix these issues. Fixes: ba6ddab94fc6 ("wifi: mac80211: maintain link-sta hash table") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: validate link address doesn't changeJohannes Berg
When modifying a link station, validate that the link address doesn't change, except the first time the link is created. Fixes: b95eb7f0eee4 ("wifi: cfg80211/mac80211: separate link params from station params") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: mlme: set sta.mlo to mlo stateJohannes Berg
At this point, we've already changed link_id to be zero for a non-MLO connection, so use the 'mlo' variable rather than link ID to determine the MLO status of the station. Fixes: bd363ee53302 ("wifi: mac80211: mlme: set sta.mlo correctly") Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: fast-xmit: handle non-MLO clientsJohannes Berg
If there's a non-MLO client, the A2 must be set to the BSSID of the link since no translation will happen in lower layers and it's needed that way for encryption. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: fix RX MLD address translationJohannes Berg
We should only translate addr3 here if it's the BSSID. Fixes: 42fb9148c078 ("wifi: mac80211: do link->MLD address translation on RX") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: fix NULL pointer deref with non-MLD STAJohannes Berg
If we have a non-MLD STA on an AP MLD, we crash while adding the station. Fix that, in this case we need to use the STA's address also on the link data structure. Fixes: f36fe0a2df03 ("wifi: mac80211: fix up link station creation/insertion") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: mlme: fix override calculationJohannes Berg
In my previous changes here, I neglected to take the old conn_flags into account that might still be present from the authentication, and thus ieee80211_setup_assoc_link() can misbehave, as well as the override calculation being wrong. Fix that by ORing in the old flags. Fixes: 1845c1d4a455 ("wifi: mac80211: mlme: refactor assoc link setup") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-22wifi: mac80211: tx: use AP address in some places for MLOJohannes Berg
In a few places we need to use the AP (MLD) address, not the deflink BSSID, the link address translation will happen later. To make that work properly for fast-xmit, set up the ap_addr in the vif.cfg earlier. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-18wifi: mac80211: do not abuse fq.lock in ieee80211_do_stop()Tetsuo Handa
lockdep complains use of uninitialized spinlock at ieee80211_do_stop() [1], for commit f856373e2f31ffd3 ("wifi: mac80211: do not wake queues on a vif that is being stopped") guards clear_bit() using fq.lock even before fq_init() from ieee80211_txq_setup_flows() initializes this spinlock. According to discussion [2], Toke was not happy with expanding usage of fq.lock. Since __ieee80211_wake_txqs() is called under RCU read lock, we can instead use synchronize_rcu() for flushing ieee80211_wake_txqs(). Link: https://syzkaller.appspot.com/bug?extid=eceab52db7c4b961e9d6 [1] Link: https://lkml.kernel.org/r/874k0zowh2.fsf@toke.dk [2] Reported-by: syzbot <syzbot+eceab52db7c4b961e9d6@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Fixes: f856373e2f31ffd3 ("wifi: mac80211: do not wake queues on a vif that is being stopped") Tested-by: syzbot <syzbot+eceab52db7c4b961e9d6@syzkaller.appspotmail.com> Acked-by: Toke Høiland-Jørgensen <toke@kernel.org> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/9cc9b81d-75a3-3925-b612-9d0ad3cab82b@I-love.SAKURA.ne.jp
2022-07-15wifi: mac80211: mlme: set sta.mlo correctlyJohannes Berg
Due to some changes and rebasing between different patches this fell through the cracks; we need to set sta.mlo if the connection is using MLO. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: support MLO authentication/association with one linkJohannes Berg
It might seem a bit pointless to do a multi-link operation connection with just a single link, but this is already a big change, so for now, limit MLO connections to a single link. Extending that to multiple links will require * work on parsing the multi-link element with STA profile properly, including element fragmentation; * checking the per-link status in the multi-link element * implementing logic to have active/inactive links to let drivers decide which links should be active; * implementing multicast RX deduplication; * and likely more. For now this is still useful since it lets us do multi-link connections for the purposes of testing APIs and the higher layers such as wpa_supplicant. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: add API to parse multi-link elementJohannes Berg
Add the necessary API to parse the multi-link element in the future. For now, link only to the element when found so we can use it in the client-side code later. Later, we'll need to fill this in to deal with element fragmentation, parse the STA profile, etc. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: do link->MLD address translation on RXJohannes Berg
In some cases, e.g. with Qualcomm devices and management frames, or in hwsim, frames may be reported from the driver with link addresses, but for decryption and matching needs we really want to have them with MLD addresses. Support the translation on RX. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: select link when transmitting to non-MLO stationsAndrei Otcheretianski
When an MLO AP is transmitting to a non-MLO station, addr2 should be set to a link address. This should be done before the frame is encrypted as otherwise aad verification would fail. In case of software encryption this can't be left for the device to handle, and should be done by mac80211 when building the frame hdr. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: fix up link station creation/insertionJohannes Berg
When we create a station with a non-default link, then we should have a link address, and we definitely need to insert it into the link hash table on insertion. Split the API into with and without link creation and if it has a link, insert the link into the link hash table on sta_info_insert(). Fixes: ba6ddab94fc6 ("wifi: mac80211: maintain link-sta hash table") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: limit A-MSDU subframes for client tooJohannes Berg
In AP/mesh where the stations are added by userspace, we limit the number of A-MSDU subframes according to the extended capabilities. Refactor the code and extend that also to client-side. Fixes: 506bcfa8abeb ("mac80211: limit the A-MSDU Tx based on peer's capabilities") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: mlme: refactor ieee80211_set_associated()Johannes Berg
Split out much of the code in ieee80211_set_associated() into a new ieee80211_link_set_associated() which can be called per link later for MLO. Signed-off-by: Johannes Berg <johannes.berg@intel.com>