kernel/linux.git/include/net/cfg80211.h, branch linux-6.5.y

wifi: cfg80211: fix kernel-doc for wiphy_delayed_work_flush()

2023-11-20T10:56:46+00:00

[ Upstream commit 8c73d5248dcf112611654bcd32352dc330b02397 ] Clearly, there's no space in the function name, not sure how that could've happened. Put the underscore that it should be. Reported-by: Stephen Rothwell Fixes: 56cfb8ce1f7f ("wifi: cfg80211: add flush functions for wiphy work") Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: cfg80211: add flush functions for wiphy work

2023-11-20T10:56:45+00:00

[ Upstream commit 56cfb8ce1f7f6c4e5ca571a2ec0880e131cd0311 ] There may be sometimes reasons to actually run the work if it's pending, add flush functions for both regular and delayed wiphy work that will do this. Signed-off-by: Johannes Berg Stable-dep-of: eadfb54756ae ("wifi: mac80211: move sched-scan stop work to wiphy work") Signed-off-by: Sasha Levin

wifi: cfg80211: add missing kernel-doc for cqm_rssi_work

2023-10-10T20:02:59+00:00

[ Upstream commit d1383077c225ceb87ac7a3b56b2c505193f77ed7 ] As reported by Stephen, I neglected to add the kernel-doc for the new struct member. Fix that. Reported-by: Stephen Rothwell Fixes: 37c20b2effe9 ("wifi: cfg80211: fix cqm_config access race") Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: cfg80211: fix cqm_config access race

2023-10-10T20:02:58+00:00

[ Upstream commit 37c20b2effe987b806c8de6d12978e4ffeff026f ] Max Schulze reports crashes with brcmfmac. The reason seems to be a race between userspace removing the CQM config and the driver calling cfg80211_cqm_rssi_notify(), where if the data is freed while cfg80211_cqm_rssi_notify() runs it will crash since it assumes wdev->cqm_config is set. This can't be fixed with a simple non-NULL check since there's nothing we can do for locking easily, so use RCU instead to protect the pointer, but that requires pulling the updates out into an asynchronous worker so they can sleep and call back into the driver. Since we need to change the free anyway, also change it to go back to the old settings if changing the settings fails. Reported-and-tested-by: Max Schulze Closes: https://lore.kernel.org/r/ac96309a-8d8d-4435-36e6-6d152eb31876@online.de Fixes: 4a4b8169501b ("cfg80211: Accept multiple RSSI thresholds for CQM") Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: cfg80211/mac80211: hold link BSSes when assoc fails for MLO connection

2023-10-10T20:02:58+00:00

[ Upstream commit 234249d88b091d006b82f8d570343aae5f383736 ] When connect to MLO AP with more than one link, and the assoc response of AP is not success, then cfg80211_unhold_bss() is not called for all the links' cfg80211_bss except the primary link which means the link used by the latest successful association request. Thus the hold value of the cfg80211_bss is not reset to 0 after the assoc fail, and then the __cfg80211_unlink_bss() will not be called for the cfg80211_bss by __cfg80211_bss_expire(). Then the AP always looks exist even the AP is shutdown or reconfigured to another type, then it will lead error while connecting it again. The detail info are as below. When connect with muti-links AP, cfg80211_hold_bss() is called by cfg80211_mlme_assoc() for each cfg80211_bss of all the links. When assoc response from AP is not success(such as status_code==1), the ieee80211_link_data of non-primary link(sdata->link[link_id]) is NULL because ieee80211_assoc_success()->ieee80211_vif_update_links() is not called for the links. Then struct cfg80211_rx_assoc_resp resp in cfg80211_rx_assoc_resp() and struct cfg80211_connect_resp_params cr in __cfg80211_connect_result() will only have the data of the primary link, and finally function cfg80211_connect_result_release_bsses() only call cfg80211_unhold_bss() for the primary link. Then cfg80211_bss of the other links will never free because its hold is always > 0 now. Hence assign value for the bss and status from assoc_data since it is valid for this case. Also assign value of addr from assoc_data when the link is NULL because the addrs of assoc_data and link both represent the local link addr and they are same value for success connection. Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Wen Gong Link: https://lore.kernel.org/r/20230825070055.28164-1-quic_wgong@quicinc.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: cfg80211: fix sband iftype data lookup for AP_VLAN

2023-08-08T11:01:19+00:00

AP_VLAN interfaces are virtual, so doesn't really exist as a type for capabilities. When passed in as a type, AP is the one that's really intended. Fixes: c4cbaf7973a7 ("cfg80211: Add support for HE") Signed-off-by: Felix Fietkau Link: https://lore.kernel.org/r/20230622165919.46841-1-nbd@nbd.name Signed-off-by: Johannes Berg

wifi: cfg80211: Retrieve PSD information from RNR AP information

2023-06-21T12:01:29+00:00

Retrieve the Power Spectral Density (PSD) value from RNR AP information entry and store it so it could be used by the drivers. PSD value is explained in Section 9.4.2.170 of Draft P802.11Revme_D2.0. Signed-off-by: Ilan Peer Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230619161906.067ded2b8fc3.I9f407ab5800cbb07045a0537a513012960ced740@changeid Signed-off-by: Johannes Berg

wifi: cfg80211/nl80211: Add support to indicate STA MLD setup links removal

2023-06-19T10:08:40+00:00

STA MLD setup links may get removed if AP MLD remove the corresponding affiliated APs with Multi-Link reconfiguration as described in P802.11be_D3.0, section 35.3.6.2.2 Removing affiliated APs. Currently, there is no support to notify such operation to cfg80211 and userspace. Add support for the drivers to indicate STA MLD setup links removal to cfg80211 and notify the same to userspace. Upon receiving such indication from the driver, clear the MLO links information of the removed links in the WDEV. Signed-off-by: Veerendranath Jakkam Link: https://lore.kernel.org/r/20230317142153.237900-1-quic_vjakkam@quicinc.com [rename function and attribute, fix kernel-doc] Signed-off-by: Johannes Berg

wifi: cfg80211: add element defragmentation helper

2023-06-19T10:05:29+00:00

This is already needed within mac80211 and support is also needed by cfg80211 to parse ML elements. Signed-off-by: Benjamin Berg Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230616094949.29c3ebeed10d.I009c049289dd0162c2e858ed8b68d2875a672ed6@changeid Signed-off-by: Johannes Berg

wifi: cfg80211: add inform_bss op to update BSS

2023-06-19T10:05:28+00:00

This new function is called from within the inform_bss(_frame)_data functions in order for the driver to update data that it is tracking. Signed-off-by: Benjamin Berg Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230616094949.8d7781b0f965.I80041183072b75c081996a1a5a230b34aff5c668@changeid Signed-off-by: Johannes Berg