kernel/linux.git/include/net/mac80211.h, branch v6.19.11

wifi: mac80211: always free skb on ieee80211_tx_prepare_skb() failure

2026-03-25T10:13:28+00:00

[ Upstream commit d5ad6ab61cbd89afdb60881f6274f74328af3ee9 ] ieee80211_tx_prepare_skb() has three error paths, but only two of them free the skb. The first error path (ieee80211_tx_prepare() returning TX_DROP) does not free it, while invoke_tx_handlers() failure and the fragmentation check both do. Add kfree_skb() to the first error path so all three are consistent, and remove the now-redundant frees in callers (ath9k, mt76, mac80211_hwsim) to avoid double-free. Document the skb ownership guarantee in the function's kdoc. Signed-off-by: Felix Fietkau Link: https://patch.msgid.link/20260314065455.2462900-1-nbd@nbd.name Fixes: 06be6b149f7e ("mac80211: add ieee80211_tx_prepare_skb() helper function") Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: mac80211: fix EHT typo

2025-11-10T09:38:37+00:00

This is clearly EHT, not ETH, fix the typo. Link: https://patch.msgid.link/20251105153958.12a04517f7ec.Idcf800817fa30605b1002c3d2287cad016e7aea7@changeid Signed-off-by: Johannes Berg

wifi: mac80211: add RX flag to report radiotap VHT information

2025-10-30T07:38:51+00:00

mac80211 already reports some basic information in the radiotap header with the known fields declared by the driver. However, drivers may want to report more accurate information and in that case the full VHT radiotap structure needs to be provided. Add a new RX_FLAG_RADIOTAP_VHT which is set when the VHT information should be pulled from the skb. Update the code to fill in the VHT fields to only do so when requested by the driver or if the information has not yet been set. This way the driver can fully control the information if it chooses so. Signed-off-by: Benjamin Berg Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20251027142118.0bad1c307a21.I2cf285c20a822698039603f2af00ed9c548f2ee0@changeid 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: Support Tx of action frame for NAN

2025-09-19T09:26:22+00:00

Add support for sending management frame over a NAN Device interface: - Declare support for the supported management frames types. - Since action frame transmissions over a NAN Device interface do not necessarily require a channel configuration, e.g., they can be transmitted during DW, modify the Tx path to avoid accessing channel information for NAN Device interface. - In addition modify the points in the Tx path logic to account for cases that a band is not specified in the Tx information. Signed-off-by: Ilan Peer Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250908140015.23b160089228.I65a58af753bcbcfb5c4ad8ef372d546f889725ba@changeid Signed-off-by: Johannes Berg

wifi: mac80211: don't require cipher and keylen in gtk rekey

2025-07-22T08:43:19+00:00

ieee80211_add_gtk_rekey receives a keyconf as an argument, and the cipher and keylen are taken from there to the new allocated key. But in rekey, both the cipher and the keylen should be the same as of the old key, so let ieee80211_add_gtk_rekey find those, so drivers won't have to fill it in. Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250721214922.3c5c023bfae9.Ie6594ae2b4b6d5b3d536e642b349046ebfce7a5d@changeid Signed-off-by: Johannes Berg

wifi: mac80211: remove ieee80211_remove_key

2025-07-21T17:35:17+00:00

It is no longer used, remove it. Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250721091956.e964ceacd85c.Idecab8ef161fa58e000b3969bc936399284b79f0@changeid Signed-off-by: Johannes Berg

wifi: mac80211: support initialising an S1G short beaconing BSS

2025-07-18T12:14:43+00:00

Introduce the ability to parse the short beacon data and long beacon period. The long beacon period represents the number of beacon intervals between each long beacon transmission. Additionally, as a BSS cannot change its configuration such that short beaconing is dynamically disabled/enabled without tearing down the interface - we ensure we have an existing short beacon before performing the update. Signed-off-by: Lachlan Hodges Link: https://patch.msgid.link/20250717074205.312577-3-lachlan.hodges@morsemicro.com Signed-off-by: Johannes Berg

wifi: mac80211: don't complete management TX on SAE commit

2025-07-09T09:56:45+00:00

When SAE commit is sent and received in response, there's no ordering for the SAE confirm messages. As such, don't call drivers to stop listening on the channel when the confirm message is still expected. This fixes an issue if the local confirm is transmitted later than the AP's confirm, for iwlwifi (and possibly mt76) the AP's confirm would then get lost since the device isn't on the channel at the time the AP transmit the confirm. For iwlwifi at least, this also improves the overall timing of the authentication handshake (by about 15ms according to the report), likely since the session protection won't be aborted and rescheduled. Note that even before this, mgd_complete_tx() wasn't always called for each call to mgd_prepare_tx() (e.g. in the case of WEP key shared authentication), and the current drivers that have the complete callback don't seem to mind. Document this as well though. Reported-by: Jan Hendrik Farr Closes: https://lore.kernel.org/all/aB30Ea2kRG24LINR@archlinux/ Signed-off-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250609213232.12691580e140.I3f1d3127acabcd58348a110ab11044213cf147d3@changeid Signed-off-by: Johannes Berg

wifi: mac80211: remove DISALLOW_PUNCTURING_5GHZ code

2025-07-09T09:52:36+00:00

Since iwlwifi was the only driver using this and no longer does, we can remove all this code. Signed-off-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20250609213231.4dff5fb8890f.Ie531f912b252a0042c18c0734db50c3afe1adfb5@changeid Signed-off-by: Johannes Berg