kernel.git/net/mac80211/cfg.c, branch master

wifi: mac80211: remove keys after disabling beaconing

2026-03-06T10:06:14Z

We shouldn't remove keys before disable beaconing, at least when beacon protection is used, since that would remove keys that are still used for beacon transmission at the same time. Stop before removing keys so there's no race. Fixes: af2d14b01c32 ("mac80211: Beacon protection using the new BIGTK (STA)") Reviewed-by: Miriam Rachel Korenblit Link: https://patch.msgid.link/20260303150339.574e7887b3ab.I50d708f5aa22584506a91d0da7f8a73ba39fceac@changeid Signed-off-by: Johannes Berg

Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses

2026-02-22T16:26:33Z

Conversion performed via this Coccinelle script: // SPDX-License-Identifier: GPL-2.0-only // Options: --include-headers-for-types --all-includes --include-headers --keep-comments virtual patch @gfp depends on patch && !(file in "tools") && !(file in "samples")@ identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex, kzalloc_obj,kzalloc_objs,kzalloc_flex, kvmalloc_obj,kvmalloc_objs,kvmalloc_flex, kvzalloc_obj,kvzalloc_objs,kvzalloc_flex}; @@ ALLOC(... - , GFP_KERNEL ) $ make coccicheck MODE=patch COCCI=gfp.cocci Build and boot tested x86_64 with Fedora 42's GCC and Clang: Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01 Signed-off-by: Kees Cook Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51Z

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

wifi: mac80211: add initial UHR support

2026-02-02T09:11:08Z

Add support for making UHR connections and accepting AP stations with UHR support. Link: https://patch.msgid.link/20260130164259.7185980484eb.Ieec940b58dbf8115dab7e1e24cb5513f52c8cb2f@changeid Signed-off-by: Johannes Berg

wifi: mac80211: use wiphy_hrtimer_work for CAC timeout

2026-02-02T09:06:14Z

Prior initiating communication in a DFS channel, there should be a monitoring of RADAR in that channel for a minimum of 600 seconds if it is a Weather RADAR channel and 60 seconds for other DFS channels. This Channel Availability Check(CAC) is currently implemented by scheduling a work item for execution with a delay equal to an appropriate timeout. But this work item is observed to take more delay than specified (4-5 seconds in regular DFS channels and 25-30 seconds in Weather RADAR channels). Even though this delay is expected in case of delayed work queue as there is no guarantee that the work will be scheduled exactly after the specified delay, a delay of more than 20 seconds is too much for the AP to be in non-operational state. Recently commit 7ceba45a6658 ("wifi: cfg80211: add an hrtimer based delayed work item") added an infrastructure to overcome this issue by supporting high resolution timers for mac80211 delayed work, which do not have this timeout latency. Switch the CAC timeout to use this infrastructure, so the CAC completion handling is triggered with tighter timing and reduced latency. Signed-off-by: Amith A Link: https://patch.msgid.link/20260130035511.2328713-1-amith.a@oss.qualcomm.com [fix delay handling] Signed-off-by: Johannes Berg

wifi: mac80211: allow key installation before association

2026-01-14T13:34:16Z

Currently, mac80211 allows key installation only after association completes. However, Enhanced Privacy Protection Key Exchange (EPPKE) requires key installation before association to enable encryption and decryption of (Re)Association Request and Response frames. Add support to install keys prior to association when the peer is an Enhanced Privacy Protection (EPP) peer that requires encryption and decryption of (Re)Association Request and Response frames. Introduce a new boolean parameter "epp_peer" in the "ieee80211_sta" profile to indicate that the peer supports the Enhanced Privacy Protection Key Exchange (EPPKE) protocol. For non-AP STA mode, it is set when the authentication algorithm is WLAN_AUTH_EPPKE during station profile initialization. For AP mode, it is set during NL80211_CMD_NEW_STA and NL80211_CMD_ADD_LINK_STA. When "epp_peer" parameter is set, mac80211 now accepts keys before association and enables encryption of the (Re)Association Request/Response frames. Co-developed-by: Sai Pratyusha Magam Signed-off-by: Sai Pratyusha Magam Signed-off-by: Kavita Kavita Link: https://patch.msgid.link/20260114111900.2196941-6-kavita.kavita@oss.qualcomm.com Signed-off-by: Johannes Berg

wifi: mac80211: remove width argument from ieee80211_parse_bitrates

2026-01-12T18:48:41Z

The width parameter in ieee80211_parse_bitrates() is unused. Remove it. While at it, use the already fetched sband pointer as an argument instead of dereferencing it once again. Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20260108143257.d13dbbda93f0.Ie70b24af583e3812883b4004ce227e7af1646855@changeid Signed-off-by: Johannes Berg

wifi: mac80211: don't send an unused argument to ieee80211_check_combinations

2026-01-12T18:42:39Z

When ieee80211_check_combinations is called with NULL as the chandef, the chanmode argument is not relevant. Send a don't care (0) instead. Reviewed-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20260111192411.9aa743647b43.I407b3d878d94464ce01e25f16c6e2b687bcd8b5a@changeid Signed-off-by: Johannes Berg

wifi: mac80211: Update csa_finalize to use link_id

2026-01-08T12:11:01Z

With cfg80211_stop_link() adding support to stop a link in AP/P2P_GO mode, in failure cases only the corresponding link can be stopped, instead of stopping the whole interface. Hence, invoke cfg80211_stop_link() directly with the link_id set for AP/P2P_GO mode when CSA finalization fails. Signed-off-by: Aditya Kumar Singh Signed-off-by: Manish Dharanenthiran Link: https://patch.msgid.link/20251127-stop_link-v2-2-43745846c5fd@qti.qualcomm.com Signed-off-by: Johannes Berg