kernel/linux.git/net/mac80211/util.c, branch v6.18.22

wifi: mac80211: correctly initialise S1G chandef for STA

2025-09-19T09:56:07+00:00

When moving to the APs channel, ensure we correctly initialise the chandef and perform the required validation. Additionally, if the AP is beaconing on a 2MHz primary, calculate the 2MHz primary center frequency by extracting the sibling 1MHz primary and averaging the frequencies to find the 2MHz primary center frequency. Signed-off-by: Lachlan Hodges Link: https://patch.msgid.link/20250918051913.500781-3-lachlan.hodges@morsemicro.com Signed-off-by: Johannes Berg

wifi: mac80211: Export an API to check if NAN is started

2025-09-19T09:26:23+00:00

So it can be used by drivers to check if NAN Device interface is started or not. Signed-off-by: Ilan Peer Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250908140015.c69652f77eb6.Ie4f3d197e0706e742e3d97614fadc11b22adfbc6@changeid Signed-off-by: Johannes Berg

wifi: mac80211: reduce the scope of rts_threshold

2025-09-04T09:19:03+00:00

This is only needed within the 'if' scope, not in the function scope. Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250903083904.1972284-3-miriam.rachel.korenblit@intel.com Signed-off-by: Johannes Berg

wifi: mac80211: simplify return value handling of cfg80211_get_radio_idx_by_chan()

2025-09-04T09:19:02+00:00

In several instances where cfg80211_get_radio_idx_by_chan() is called, redundant checks are performed across function — such as verifying if wiphy->n_radio < 2 or if the returned index is negative. These checks are unnecessary, as the return value can be directly compared. Moreover, the function can be safely called even when radio-level properties are not explicitly advertised since in such case in each call it is going to get same error value. Therefore, simplify the usage of this function across all such cases by removing redundant conditions and relying on the return value directly. Signed-off-by: Aditya Kumar Singh Link: https://patch.msgid.link/20250812-fix_scan_ap_flag_requirement_during_mlo-v4-2-383ffb6da213@oss.qualcomm.com Signed-off-by: Johannes Berg

wifi: mac80211: support initialising current S1G short beacon index

2025-07-18T12:14:44+00:00

Introduce the sb_count variable which tracks the number of beacon intervals until the next long beacon. To initialise this value, we find the current short beacon index into this period which represents the number of short beacons left to send before the next long beacon. We use the same TSF value used to initialise the DTIM count to ensure the short beacon count and DTIM count are in sync as its common for the long beacon period and DTIM period to be equivalent. Signed-off-by: Lachlan Hodges Link: https://patch.msgid.link/20250717074205.312577-4-lachlan.hodges@morsemicro.com Signed-off-by: Johannes Berg

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-07-11T18:42:38+00:00

Cross-merge networking fixes after downstream PR (net-6.16-rc6-2). No conflicts. Adjacent changes: drivers/net/wireless/mediatek/mt76/mt7925/mcu.c c701574c5412 ("wifi: mt76: mt7925: fix invalid array index in ssid assignment during hw scan") b3a431fe2e39 ("wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan()") drivers/net/wireless/mediatek/mt76/mt7996/mac.c 62da647a2b20 ("wifi: mt76: mt7996: Add MLO support to mt7996_tx_check_aggr()") dc66a129adf1 ("wifi: mt76: add a wrapper for wcid access with validation") drivers/net/wireless/mediatek/mt76/mt7996/main.c 3dd6f67c669c ("wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl()") 8989d8e90f5f ("wifi: mt76: mt7996: Do not set wcid.sta to 1 in mt7996_mac_sta_event()") net/mac80211/cfg.c 58fcb1b4287c ("wifi: mac80211: reject VHT opmode for unsupported channel widths") 037dc18ac3fb ("wifi: mac80211: add support for storing station S1G capabilities") Signed-off-by: Jakub Kicinski

wifi: mac80211: add the virtual monitor after reconfig complete

2025-07-10T11:27:14+00:00

In reconfig we add the virtual monitor in 2 cases: 1. If we are resuming (it was deleted on suspend) 2. If it was added after an error but before the reconfig (due to the last non-monitor interface removal). In the second case, the removal of the non-monitor interface will succeed but the addition of the virtual monitor will fail, so we add it in the reconfig. The problem is that we mislead the driver to think that this is an existing interface that is getting re-added - while it is actually a completely new interface from the drivers' point of view. Some drivers act differently when a interface is re-added. For example, it might not initialize things because they were already initialized. Such drivers will - in this case - be left with a partialy initialized vif. To fix it, add the virtual monitor after reconfig_complete, so the driver will know that this is a completely new interface. Fixes: 3c3e21e7443b ("mac80211: destroy virtual monitor interface across suspend") Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250709233451.648d39b041e8.I2e37b68375278987e303d6c00cc5f3d8334d2f96@changeid Signed-off-by: Johannes Berg

wifi: cfg80211/mac80211: implement dot11ExtendedRegInfoSupport

2025-07-09T09:56:37+00:00

Implement dot11ExtendedRegInfoSupport to advertise non-AP station regulatory power capability as part of regulatory connectivity element in (Re)Association request frames so that AP can achieve maximum client connectivity. Control field which was interpreted using value of 3-bits B5 to B3, now uses value of 4-bits B6 to B3 to interpret the type of AP. Hence update IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO to parse 4-bits control field. If older AP still updates only 3-bits value of control field, station can still interpret the value as per section E.2.7 of IEEE 802.11 REVme D7.0 and support the appropriate AP type. Also update IEEE80211_6GHZ_CTRL_REG_INDOOR_SP_AP as the value of standard power AP is changed to 8 instead of 4 so that AP can support both LPI AP and SP AP to maximize the connectivity with stations. For backward compatibility, keeping value 4 as old AP by limiting it to SP AP only. Signed-off-by: Somashekhar Puttagangaiah Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250609213232.90cdef116aad.I85da390fbee59355e3855691933e6a5e55c47ac4@changeid [fix kernel-doc] Signed-off-by: Johannes Berg

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-06-26T17:40:50+00:00

Cross-merge networking fixes after downstream PR (net-6.16-rc4). Conflicts: Documentation/netlink/specs/mptcp_pm.yaml 9e6dd4c256d0 ("netlink: specs: mptcp: replace underscores with dashes in names") ec362192aa9e ("netlink: specs: fix up indentation errors") https://lore.kernel.org/20250626122205.389c2cd4@canb.auug.org.au Adjacent changes: Documentation/netlink/specs/fou.yaml 791a9ed0a40d ("netlink: specs: fou: replace underscores with dashes in names") 880d43ca9aa4 ("netlink: specs: clean up spaces in brackets") Signed-off-by: Jakub Kicinski

wifi: mac80211: Set RTS threshold on per-radio basis

2025-06-24T13:19:27+00:00

Add support to get the radio for which RTS threshold needs to be changed from userspace. Pass on this radio index to underlying drivers as an additional argument. A value of -1 indicates radio index is not mentioned and that the configuration applies to all radio(s) of the wiphy. Signed-off-by: Roopni Devanathan Link: https://patch.msgid.link/20250615082312.619639-5-quic_rdevanat@quicinc.com Signed-off-by: Johannes Berg