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2024-03-25wifi: mac80211: fix ieee80211_bss_*_flags kernel-docJeff Johnson1-2/+2
Running kernel-doc on ieee80211_i.h flagged the following: net/mac80211/ieee80211_i.h:145: warning: expecting prototype for enum ieee80211_corrupt_data_flags. Prototype was for enum ieee80211_bss_corrupt_data_flags instead net/mac80211/ieee80211_i.h:162: warning: expecting prototype for enum ieee80211_valid_data_flags. Prototype was for enum ieee80211_bss_valid_data_flags instead Fix these warnings. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://msgid.link/20240314-kdoc-ieee80211_i-v1-1-72b91b55b257@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-25wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changesFelix Fietkau1-3/+2
When moving a station out of a VLAN and deleting the VLAN afterwards, the fast_rx entry still holds a pointer to the VLAN's netdev, which can cause use-after-free bugs. Fix this by immediately calling ieee80211_check_fast_rx after the VLAN change. Cc: stable@vger.kernel.org Reported-by: ranygh@riseup.net Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://msgid.link/20240316074336.40442-1-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-25wifi: mac80211: fix mlme_link_id_dbg()Johan Hovold1-1/+1
Make sure that the new mlme_link_id_dbg() macro honours CONFIG_MAC80211_MLME_DEBUG as intended to avoid spamming the log with messages like: wlan0: no EHT support, limiting to HE wlan0: determined local STA to be HE, BW limited to 160 MHz wlan0: determined AP xx:xx:xx:xx:xx:xx to be VHT wlan0: connecting with VHT mode, max bandwidth 160 MHz Fixes: 310c8387c638 ("wifi: mac80211: clean up connection process") Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://msgid.link/20240325085948.26203-1-johan+linaro@kernel.org Tested-by: Kalle Valo <kvalo@kernel.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-08Merge tag 'wireless-next-2024-03-08' of ↵Jakub Kicinski19-295/+433
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v6.9 The fourth "new features" pull request for v6.9 with changes both in stack and in drivers. The theme in this pull request is to fix sparse warnings but we still have some left in wireless subsystem. Otherwise quite normal. Major changes: rtw89 * NL80211_EXT_FEATURE_SCAN_RANDOM_SN support * NL80211_EXT_FEATURE_SET_SCAN_DWELL support rtw88 * support for more rtw8811cu and rtw8821cu devices mt76 * mt76x2u: add Netgear WNDA3100v3 USB * mt7915: newer ADIE version support * mt7925: radio temperature sensor support * mt7996: remove GCMP IGTK offload * tag 'wireless-next-2024-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (125 commits) wifi: rtw89: wow: move release offload packet earlier for WoWLAN mode wifi: rtw89: wow: set security engine options for 802.11ax chips only wifi: rtw89: update suspend/resume for different generation wifi: rtw89: wow: update config mac function with different generation wifi: rtw89: update DMA function with different generation wifi: rtw89: wow: update WoWLAN status register for different generation wifi: rtw89: wow: update WoWLAN reason register for different chips wifi: brcm80211: handle pmk_op allocation failure wifi: rtw89: coex: Add coexistence policy to decrease WiFi packet CRC-ERR wifi: rtw89: coex: When Bluetooth not available don't set power/gain wifi: rtw89: coex: add return value to ensure H2C command is success or not wifi: rtw89: coex: Reorder H2C command index to align with firmware wifi: rtw89: coex: add BTC ctrl_info version 7 and related logic wifi: rtw89: coex: add init_info H2C command format version 7 wifi: rtw89: 8922a: add coexistence helpers of SW grant wifi: rtw89: mac: add coexistence helpers {cfg/get}_plt wifi: cw1200: restore endian swapping wifi: wlcore: sdio: Rate limit wl12xx_sdio_raw_{read,write}() failures warns wifi: rtlwifi: Remove rtl_intf_ops.read_efuse_byte wifi: rtw88: 8821c: Fix false alarm count ... ==================== Link: https://lore.kernel.org/r/20240308100429.B8EA2C433F1@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-04wifi: mac80211: remove TDLS peers on link deactivationJohannes Berg1-1/+1
If a link is deactivated, we really cannot sustain any TDLS connections on that link any more. With the API now changed, fix this issue and remove TDLS connections. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Link: https://msgid.link/20240228095719.a7dd812c37bf.I3474dbde79e9e7a539d47f6f81f32e6c3e459080@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: remove TDLS peers only on affected linkJohannes Berg4-6/+11
If a link does CSA, or if it changes SMPS mode, we need to drop the TDLS peers, but we really should drop them only on the affected link. Fix that. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Link: https://msgid.link/20240228095719.00d1d793f5b8.Ia9971316c6b3922dd371d64ac2198f91ed5ad9d2@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: mlme: unify CSA handlingJohannes Berg1-16/+22
Unify all the CSA handling, including handling of a beacon after the CSA, into ieee80211_sta_process_chanswitch(). The CRC of the beacon will change due to changes in the CSA/ECSA elements, so there's really no need to have the 'beacon after CSA' handling before the CRC processing or to change the beacon_crc_valid value here. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228095719.e269c0e02905.I9dc68ff1e84d51349822bc7d3b33b578fcf8e360@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: introduce a feature flag for quiet in CSAJohannes Berg5-26/+37
When doing CSA in multi-link, there really isn't a need to stop transmissions entirely. Add a feature flag for drivers to indicate they can handle quiet in CSA (be it by parsing themselves, or by implementing drv_pre_channel_switch()), to make that possible. Also clean up the csa_block_tx handling: it clearly cannot handle multi-link due to the way queues are stopped, move it to the sdata. Drivers should be doing it themselves for working properly during CSA in MLO anyway. Also rename it to indicate that it reflects TX was blocked at mac80211. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228095719.258439191541.I2469d206e2bf5cb244cfde2b4bbc2ae6d1cd3dd9@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: pass link conf to abort_channel_switchJohannes Berg2-4/+6
Pass the link conf to the abort_channel_switch driver method so the driver can handle things correctly. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228095718.27f621106ddd.Iadd3d69b722ffe5934779a32a0e4e596a4e33ed4@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: pass link_id to channel switch opsJohannes Berg3-66/+24
For CSA to work correctly in multi-link scenarios, pass the link_id to the relevant callbacks. While at it, unify/deduplicate the tracing for them. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Link: https://msgid.link/20240228095718.b7726635c054.I0be5d00af4acb48cfbd23a9dbf067f9aeb66469d@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: hide element parsing internalsJohannes Berg3-58/+78
Rework the data structures to hide element parsing internals from the users. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094902.19c610b529e2.Ie7ea2dcb6713911590ace6583a4748f32dc37df2@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: remove unneeded scratch_len subtractionJohannes Berg1-1/+0
We're always using "scratch + len - pos", so we don't need to subtract here to calculate the remaining length. Remove the unnecessary subtraction. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Reviewed-by: Ilan Peer <ilan.peer@intel.com> Link: https://msgid.link/20240228094902.44e07cfa9e63.I7a9758fb9bc6b726aac49804f2f05cd521bc4128@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: defragment reconfiguration MLE when parsingJohannes Berg3-16/+27
Using the scratch buffer (without advancing it) here in the mlme.c code seems somewhat wrong, defragment the reconfig multi-link element already when parsing. This might be a bit more work in certain cases, but makes the whole thing more regular. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094902.92936a3ce216.I4b736ce4fdc199fa1d6b00d00032f448c873a8b4@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: simplify multi-link element parsingJohannes Berg3-16/+8
We shouldn't assign elems->ml_basic{,len} before defragmentation, and we don't need elems->ml_reconf{,len} at all since we don't do defragmentation. Clean that up a bit. This does require always defragmention even when it may not be needed, but that's easier to reason about. Reviewed-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094902.e0115da4d2a6.I89a80f7387eabef8df3955485d4a583ed024c5b1@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: remove unnecessary ML element checksJohannes Berg1-3/+0
Given the prior changes to ieee80211_mle_size_ok(), we can now pass NULL to for_each_mle_subelement(), so no longer need to check for that here explicitly. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094901.9e32c4b63875.Ia2ee0aafdc8a48bd21b485cc36a9866f950d781b@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: add ieee80211_vif_link_active() helperJohannes Berg4-15/+8
We sometimes need to check if a link is active, and this is complicated by the fact that active_links has no bits set when the vif isn't (acting as) an MLD. Add a small new helper ieee80211_vif_link_active() to make that a bit easier, and use it in a few places. Reviewed-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094901.688760aff5f7.I06892a503f5ecb9563fbd678d35d08daf7a044b0@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: remove unnecessary ML element type checkJohannes Berg1-4/+0
At this point, since it's taken from elems->ml_basic which is stored only if it's of type basic, we don't really need to check again if it's basic. Reviewed-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094901.ad1d4a09a6eb.Ib96fa75b1a6db21dd4182dcfa11fe9aff78fa3ed@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: update scratch_pos after defragJohannes Berg1-0/+1
The scratch_pos update here was lost after defrag, so any other uses of the scratch buffer might overwrite it. Fixes: a286de1aa38f ("wifi: mac80211: Rename multi_link") Reviewed-by: Benjamin Berg <benjamin.berg@intel.com> Reviewed-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094901.9da35f39eeb7.I7127f2918ec4cba416fcbc35eacaea10262c1268@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: Adjust CQM handling for MLOIlan Peer1-29/+50
The CQM handling did not consider the MLO case and thus notified a not-existing link with the CQM change. To fix this, propagate the CQM notification to all the active links (handling both the non-MLO and MLO cases). TODO: this currently propagates the same configuration to all links regardless of the band. This might not be the correct approach as different links might need to be configured with different values. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094753.bf6a3fefe553.Id738810b73e1087e01d5885508b70a3631707627@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: Allow beacons to update BSS table regardless of scanIlan Peer1-7/+15
When a beacon is received use it to update the BSS table regardless of the scanning state. Do so only when there are active non-monitor interfaces. Also, while at it, in any case accept beacons only with broadcast address. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Signed-off-by: Ilan Peer <ilan.peer@intel.com> Link: https://msgid.link/20240228094742.e508605f495b.I3ab24ab3543319e31165111b28bcdcc622b5cf02@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: add link id to ieee80211_gtk_rekey_add()Shaul Triebitz1-4/+12
In MLO, we need the link id in the GTK key to be given by the driver after rekeying in wowlan, so add that. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094500.ce1bfc83a680.I43a6f8ab2804ee07116a37d5b9ec601b843464b1@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: obtain AP HT/VHT data for assoc requestJohannes Berg1-0/+73
In the association request, we make some parameters depend on the AP's HT/VHT information. This was broken by my code because it no longer filled that information, making it all zero. For HT that meant we wouldn't reduce our capabilities to 20 MHz if needed, and for VHT we lost beamforming capabilities. Fix this. It seems like it may even have been broken for all but the assoc link before. Fixes: 310c8387c638 ("wifi: mac80211: clean up connection process") Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094207.7dc812c2060a.Ibd591f9c214b4e166cf7171db3cf63bda8e3c9fd@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: don't add VHT capa on links without themJohannes Berg1-1/+2
When a link doesn't have VHT capability, before the rework we'd have set IEEE80211_CONN_DISABLE_VHT, but now with the linear progression of 'mode', we no longer have that. Add an explicit check for VHT being supported, so we don't add a zeroed VHT capabilities element where it shouldn't be. Fixes: 310c8387c638 ("wifi: mac80211: clean up connection process") Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094207.bfe4283bcde7.Ib70a558bc6bdbcec3d9e663079229dfcc2493682@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: handle netif carrier up/down with link AP during MLOAditya Kumar Singh1-2/+30
Currently whenever link AP is started, netif_carrier_up() function is called and whenever it is brought down, netif_carrier_down() function is called. However, with MLO, all the links of the same MLD would use the same netdev. Hence there is no need to indicate for each link up/down. Also, calling it down when only one of the links went down is not desirable. Add changes to call the netif_carrier_up() function only when first link is brought up. Similarly, add changes to call the netif_carrier_down() function only when last link is brought down. In order to check the number of beaconing links in the given interface, introduce a new helper function ieee80211_num_beaconing_links(). Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240227042251.1511122-3-quic_adisi@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: remove only link keys during stopping link APRameshkumar Sundaram1-1/+7
Currently while stopping a link AP, all keys from the interface were removed. However with MLO there is a requirement to free only the link keys. Add changes to remove keys which are associated with the link AP which is going to be stopped. Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com> Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240227042251.1511122-2-quic_adisi@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: track capability/opmode NSS separatelyJohannes Berg5-28/+30
We're currently tracking rx_nss for each station, and that is meant to be initialized to the capability NSS and later reduced by the operating mode notification NSS. However, we're mixing up capabilities and operating mode NSS in the same variable. This forces us to recalculate the NSS capability on operating mode notification RX, which is a bit strange; due to the previous fix I had to never keep rx_nss as zero, it also means that the capa is never taken into account properly. Fix all this by storing the capability value, that can be recalculated unconditionally whenever needed, and storing the operating mode notification NSS separately, taking it into account when assigning the final rx_nss value. Cc: stable@vger.kernel.org Fixes: dd6c064cfc3f ("wifi: mac80211: set station RX-NSS on reconfig") Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228120157.0e1c41924d1d.I0acaa234e0267227b7e3ef81a59117c8792116bc@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: fix supported rate masking in scanJohannes Berg1-4/+4
We have an nl80211 attribute to mask supported rates from probe responses in scanning, e.g. for use in P2P, but in the refactoring I stopped applying this mask. Restore it. Fixes: 07095d167749 ("wifi: mac80211: start building elements in SKBs") Link: https://msgid.link/20240301175451.7ad8ab0bd90c.I46b49e4fc27fe60b75d4559c01104e55ed381c37@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: check link exists before useJohannes Berg1-1/+1
If the assoc link doesn't exist yet at this point, we cannot use it yet. This isn't normally the case, but e.g. in case of FT-DS (or just broken userspace) the link might not be set up yet and will only be created later in this function. Check that the link exists. Fixes: 310c8387c638 ("wifi: mac80211: clean up connection process") Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/3151f5d0-c18f-413d-b34b-b94f095b947c@moroto.mountain Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240301193633.c886d300e90a.Ie1d5e23b2a033d934d343c37249f6f4dfddcc5fe@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-04wifi: mac80211: always initialize match_authJohannes Berg1-4/+4
My previous patch only initialized match_auth when the ifmgd->auth_data exists, but that was wrong, it should always be set. Fix that. Fixes: 310c8387c638 ("wifi: mac80211: clean up connection process") Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/3151f5d0-c18f-413d-b34b-b94f095b947c@moroto.mountain Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240301193633.1a3fc370f211.I979dd222b3b5eb5e1437886e5f7c2355eeccb9f7@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-03-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-1/+2
Cross-merge networking fixes after downstream PR. Conflicts: net/mptcp/protocol.c adf1bb78dab5 ("mptcp: fix snd_wnd initialization for passive socket") 9426ce476a70 ("mptcp: annotate lockless access for RX path fields") https://lore.kernel.org/all/20240228103048.19255709@canb.auug.org.au/ Adjacent changes: drivers/dpll/dpll_core.c 0d60d8df6f49 ("dpll: rely on rcu for netdev_dpll_pin()") e7f8df0e81bf ("dpll: move xa_erase() call in to match dpll_pin_alloc() error path order") drivers/net/veth.c 1ce7d306ea63 ("veth: try harder when allocating queue memory") 0bef512012b1 ("net: add netdev_lockdep_set_classes() to virtual drivers") drivers/net/wireless/intel/iwlwifi/mvm/d3.c 8c9bef26e98b ("wifi: iwlwifi: mvm: d3: implement suspend with MLO") 78f65fbf421a ("wifi: iwlwifi: mvm: ensure offloading TID queue exists") net/wireless/nl80211.c f78c1375339a ("wifi: nl80211: reject iftype change with mesh ID change") 414532d8aa89 ("wifi: cfg80211: use IEEE80211_MAX_MESH_ID_LEN appropriately") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-23wifi: mac80211: only call drv_sta_rc_update for uploaded stationsFelix Fietkau1-1/+2
When a station has not been uploaded yet, receiving SMPS or channel width notification action frames can lead to rate_control_rate_update calling drv_sta_rc_update with uninitialized driver private data. Fix this by adding a missing check for sta->uploaded. Signed-off-by: Felix Fietkau <nbd@nbd.name> Link: https://msgid.link/20240221140535.16102-1-nbd@nbd.name Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-21wifi: mac80211: align ieee80211_mle_get_bss_param_ch_cnt()Johannes Berg1-4/+5
Align the prototype of ieee80211_mle_get_bss_param_ch_cnt() to also take a u8 * like the other functions, and make it return -1 when the field isn't found, so that mac80211 can check that instead of explicitly open-coding the check. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240216135047.583309181bc3.Ia61cb0b4fc034d5ac8fcfaf6f6fb2e115fadafe7@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-21wifi: mac80211: clean up assignments to pointer cache.Colin Ian King1-5/+1
The assignment to pointer cache in function mesh_fast_tx_gc can be made at the declaration time rather than a later assignment. There are also 3 functions where pointer cache is being initialized at declaration time and later re-assigned again with the same value, these are redundant and can be removed. Cleans up code and three clang scan build warnings: warning: Value stored to 'cache' during its initialization is never read [deadcode.DeadStores] Signed-off-by: Colin Ian King <colin.i.king@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://msgid.link/20240215232151.2075483-1-colin.i.king@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-21wifi: mac80211: make associated BSS pointer visible to the driverMiri Korenblit2-11/+9
Some drivers need the data in it, so move it to the link conf, which is exposed to the driver. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240206164849.6fe9782b87b4.Ifbffef638f07ca7f5c2b27f40d2cf2942d21de0b@changeid [remove bss pointer from internal struct, update docs] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-21wifi: mac80211: check beacon countdown is complete on per link basisAditya Kumar Singh1-2/+12
Currently, function to check if beacon countdown is complete uses deflink to fetch the beacon and check the counter. However, with MLO, there is a need to check the counter for the beacon in a particular link. Add support to use link_id in order to fetch the beacon from a particular link data. Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240216144621.514385-2-quic_adisi@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-15Merge wireless into wireless-nextJohannes Berg1-1/+2
There's a conflict already and some upcoming changes also depend on changes in wireless for being conflict- free, so pull wireless in to make all that easier. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-12wifi: mac80211: drop injection on disabled-chan monitorJohannes Berg1-1/+9
If the driver uses the new IEEE80211_CHAN_CAN_MONITOR, we may monitor on channels that are, e.g. via regulatory, otherwise considered disabled. However, we really shouldn't transmit on them, so prevent that. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240206164849.9c03dcf67dbe.Ib86a851c274c440908c663f6dd774b79bfc3965d@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-12wifi: mac80211: remove only own link stations during stop_apAditya Kumar Singh1-1/+1
Currently, whenever AP link is brought down via ieee80211_stop_ap() function, all stations connected to the sdata are flushed. However, in case of MLO there is a requirement to flush only stations connected to that link and not all. For instance - Consider 2 GHz and 5 GHz are AP MLD. Now due to some reason 5 GHz link of this AP is going down (link removal or any other case). All stations connected, even legacy stations connected to 2 GHz link AP would also be flushed. Flushing of other link stations is not desirable. Fix this issue by passing self link ID to sta_flush() function. This would then only remove the stations which are still using the passed link ID as their link sta. Other stations will not be affected. Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240205162952.1697646-4-quic_adisi@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-12wifi: mac80211: flush only stations using requests linksAditya Kumar Singh8-18/+33
Whenever sta_flush() function is invoked, all STAs present in that interface are flushed. In case of MLO, it is desirable to only flush such STAs that are at least using a given link id as one of their links. Add support for this by making change in the __sta_info_flush API argument to accept a link ID. And then, only if the STA is using the given link as one of its links, it would be flushed. Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240205162952.1697646-3-quic_adisi@quicinc.com [reword commit message, in particular this isn't about "active" links] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-12wifi: mac80211: remove gfp parameter from ieee80211_obss_color_collision_notifyLorenzo Bianconi2-3/+2
Get rid of gfp parameter from ieee80211_obss_color_collision_notify since it is no longer used. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://msgid.link/f91e1c78896408ac556586ba8c99e4e389aeba02.1707389901.git.lorenzo@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: add support to call csa_finish on a linkAditya Kumar Singh1-2/+13
Currently ieee80211_csa_finish() function finalizes CSA by scheduling a finalizing worker using the deflink. With MLO, there is a need to do it on a given link basis. Pass link ID of the link on which CSA needs to be finalized. Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240130140918.1172387-6-quic_adisi@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: start and finalize channel switch on link basisAditya Kumar Singh2-24/+37
Add changes to start a channel switch as well as finalize it on link basis in order to support CSA with MLO as well. Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240130140918.1172387-5-quic_adisi@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: handle set csa/after_csa beacon on per link basisAditya Kumar Singh1-13/+15
In order to support CSA with MLO, there is a need to handle the functions ieee80211_set_csa_beacon() and ieee80211_set_after_csa_beacon() on a per link basis. Implement this by making the function argument accept the the link data instead of the sdata. Currently, deflink would only be passed. Proper link data will be passed in a subsequent patch. Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240130140918.1172387-4-quic_adisi@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: update beacon counters per link basisAditya Kumar Singh1-3/+11
Currently, function to update beacon counter uses deflink to fetch the beacon and then update the counter. However, with MLO, there is a need to update the counter for the beacon in a particular link. Add support to use link_id in order to fetch the beacon from a particular link data during beacon update counter. Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com> Link: https://msgid.link/20240130140918.1172387-3-quic_adisi@quicinc.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: refactor STA CSA parsing flowsMichael-CY Lee1-52/+250
The new Wi-Fi Standard (IEEE Std 802.11-2020 9.4.2.160) specifies that the Wide Bandwidth Channel Switch (WBCS) Element subfields have the same definitions as VHT operation information if the operating band is not S1G. The problem comes when the BSS is in 6 GHz band, the STA parses the WBCS Element by ieee80211_chandef_vht_oper(), which checks the capabilities for HT/VHT mode, not HE/EHT mode. This patch refactors STA CSA parsing flow so that the corresponding capabilities can be checked. Also, it adds the way to use op_class in ECSA Element to build a new chandef. In summary, the new steps for STA to handle CSA event are: 1. build the new chandef from one of the CSA-related (Sub)Elements in following order, - Bandwidth Indication (Sub)Element - Wide Bandwidth Channel Switch (Sub)Element - Operating class in Extended Channel Switch Announcement Element - Channel Switch Announcement Element 2. convert the new chandef into operation information according to the operating band in order to check if the new chandef fits STA's capabilities. 3. downgrade the bandwidth until current bandwidth is not disabled. Co-developed-by: Money Wang <money.wang@mediatek.com> Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com> Link: https://msgid.link/20231222010914.6521-3-michael-cy.lee@mediatek.com [rebase on top of the changes with struct ieee80211_conn_settings, prefer leXY_encode_bits()] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: don't use sband->band earlyJohannes Berg1-1/+1
Some drivers may (notably mt76 does) not set up sband->band before registering, and cfg80211 will fill it in later. But since the HT/HE capability check mac80211 required it to be initialized already, otherwise failing things. This really isn't necessary though since the code is iterating the list of bands, and has the 'band' variable available. Fix it to not require the sband->band to be initialized already. Fixes: f04d2c247e04 ("wifi: mac80211: disallow drivers with HT wider than HE") Reported-by: Bert Karwatzki <spasswolf@web.de> Debugged-by: Bert Karwatzki <spasswolf@web.de> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218466 Link: https://msgid.link/20240207115920.43cbedffb5c3.I4968e12275a3f95926e3f3ccae81e50f23fe4d4d@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: add missing kernel-doc for fast_tx_checkJohannes Berg1-1/+2
This was added earlier, add kernel-doc for it. Link: https://msgid.link/20240206134555.6354b0ac8610.Ib90d3651834c556b73697388f59bd396a1f6f9b0@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: clarify vif handling in TX dequeueJohannes Berg1-1/+2
The vif pointer at least looks like it can actually be NULL in some cases such as the monitor-mode vif, causing static checkers to complain with the immediate derefence. In these cases the sta pointer will also be NULL, but clarify it in the code anyway. Link: https://msgid.link/20240131164910.60066625a239.Idfb6a5a9876f9f631eae760055e1c4018259a971@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: allow CSA to same channelJohannes Berg1-4/+0
This could be used e.g. for temporarily sending quiet (mode=1 in CSA/ECSA), or updating bandwidth. This is also useful for testing, since it's something that an AP may do and the client needs to be prepared. Simply allow it. Link: https://msgid.link/20240129203544.ef7258d5790d.Idafe22e41621757458d4960659b9621853f7104d@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-08wifi: mac80211: convert ieee80211_ie_build_eht_cap() to SKB useJohannes Berg5-119/+42
Convert ieee80211_ie_build_eht_cap() to the SKB-put function style, renaming it to ieee80211_put_eht_cap(). Link: https://msgid.link/20240129202041.ece9769e3c94.Ibd17bea6311f0c7ba56f6c1803fa3208abaaebb9@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-04 17:27:08 +0300