kernel/git/stable/linux.git/net/wireless/tests/scan.c, branch master

wifi: cfg80211: tests: check BSS lookup failure reasons

2026-07-22T14:11:37+00:00

Add a KUnit test for the extack failure reasons that __cfg80211_get_bss() now reports: no matching scan entry at all, a matching entry that is expired, and a matching entry whose use_for flags do not allow the requested use. Also cover the cases that must not report a failure (a fresh entry, and an expired-but-held entry), an entry that is both expired and unusable, and the combined message when one matching entry is expired while another is current but unusable. Signed-off-by: Louis Kotze Link: https://patch.msgid.link/20260722070734.3612581-3-loukot@gmail.com Signed-off-by: Johannes Berg

wifi: cfg80211: say why the auth/assoc BSS lookup failed

2026-07-22T14:08:51+00:00

The BSS lookup for an authentication or association request can fail for three distinct reasons: cfg80211 has no scan entry at all for the BSSID/channel, an entry exists but is older than IEEE80211_SCAN_RESULT_EXPIRE (and not held), or a fresh entry exists but its use_for flags do not allow this use. All three currently surface as the same generic extack message "Error fetching BSS for link" on the MLO association path, and as a bare -ENOENT with no message at all on the authentication and non-MLO association paths. Since wpa_supplicant logs the extack message verbatim ("nl80211: kernel reports: ..."), that message is often the only diagnostic a user sees when an MLO association degrades to fewer links, and it does not say whether a fresh scan could have helped. In practice the expired case is common for MLO partner links: 6 GHz is passive-scan in many regulatory domains, so the partner-link entry is routinely stale by the time userspace requests the association even though the link is perfectly usable. Let __cfg80211_get_bss() take an optional extack and record, during the same bss_lock walk that fails the lookup, whether any matching entry was rejected for being expired or for not being usable for the requested use, and set a distinct message for each case (and a combined one when different entries were rejected for different reasons). Reorder the checks in the walk so that an entry's identity (type, privacy, channel, BSSID/SSID) is established before the usability checks; this doesn't change which entry is returned since an entry is only used when all checks pass. Also give the -EINVAL paths in nl80211_assoc_bss() proper messages while at it, and keep pointing the bad_attr at the failing link on the MLO path there; the message for that case is already set by the lookup itself. Signed-off-by: Louis Kotze Link: https://patch.msgid.link/20260722070734.3612581-2-loukot@gmail.com Signed-off-by: Johannes Berg

Merge tag 'wireless-next-2024-12-19' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

2024-12-20T02:54:07+00:00

Kalle Valo says: ==================== wireless-next patches for v6.14 Multi-Link Operation implementation continues, both in stack and in drivers. Otherwise it has been relatively quiet. Major changes: cfg80211/mac80211 - define wiphy guard - get TX power per link - EHT 320 MHz channel support for mesh ath11k - QCA6698AQ support ath9k - RX inactivity detection rtl8xxxu - add more USB device IDs rtw88 - add more USB device IDs - enable USB RX aggregation and USB 3 to improve performance rtw89 - PowerSave flow for Multi-Link Operation * tag 'wireless-next-2024-12-19' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (121 commits) wifi: wlcore: sysfs: constify 'struct bin_attribute' wifi: brcmfmac: clarify unmodifiable headroom log message wifi: brcmfmac: add missing header include for brcmf_dbg wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() wifi: qtnfmac: fix spelling error in core.h wifi: rtw89: phy: add dummy C2H event handler for report of TAS power wifi: rtw89: 8851b: rfk: remove unnecessary assignment of return value of _dpk_dgain_read() wifi: rtw89: 8852c: rfk: refine target channel calculation in _rx_dck_channel_calc() wifi: rtlwifi: pci: wait for firmware loading before releasing memory wifi: rtlwifi: fix memory leaks and invalid access at probe error path wifi: rtlwifi: destroy workqueue at rtl_deinit_core wifi: rtlwifi: remove unused check_buddy_priv wifi: rtw89: 8922a: update format of RFK pre-notify H2C command v2 wifi: rtw89: regd: update regulatory map to R68-R51 wifi: rtw89: 8852c: disable ER SU when 4x HE-LTF and 0.8 GI capability differ wifi: rtw89: disable firmware training HE GI and LTF wifi: rtw89: ps: update data for firmware and settings for hardware before/after PS wifi: rtw89: ps: refactor channel info to firmware before entering PS wifi: rtw89: ps: refactor PS flow to support MLO wifi: mwifiex: decrease timeout waiting for host sleep from 10s to 5s ... ==================== Link: https://patch.msgid.link/20241219185709.774EDC4CECE@smtp.kernel.org Signed-off-by: Jakub Kicinski

wifi: cfg80211: tests: Fix potential NULL dereference in test_cfg80211_parse_colocated_ap()

2024-12-04T15:11:11+00:00

kunit_kzalloc() may return NULL, dereferencing it without NULL check may lead to NULL dereference. Add a NULL check for ies. Fixes: 45d43937a44c ("wifi: cfg80211: add a kunit test for 6 GHz colocated AP parsing") Signed-off-by: Zichen Xie Link: https://patch.msgid.link/20241115063835.5888-1-zichenxie0106@gmail.com Signed-off-by: Johannes Berg

module: Convert symbol namespace to string literal

2024-12-02T19:34:44+00:00

Clean up the existing export namespace code along the same lines of commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo) to __section("foo")") and for the same reason, it is not desired for the namespace argument to be a macro expansion itself. Scripted using git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file; do awk -i inplace ' /^#define EXPORT_SYMBOL_NS/ { gsub(/__stringify$ns$/, "ns"); print; next; } /^#define MODULE_IMPORT_NS/ { gsub(/__stringify$ns$/, "ns"); print; next; } /MODULE_IMPORT_NS/ { $0 = gensub(/MODULE_IMPORT_NS$([^)]*)$/, "MODULE_IMPORT_NS(\"\\1\")", "g"); } /EXPORT_SYMBOL_NS/ { if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)$([^,]+),/) { if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)$/ && $0 !~ /(EXPORT_SYMBOL_NS[^(]*)/ && $0 !~ /^my/) { getline line; gsub(/[[:space:]]*\\$/, ""); gsub(/[[:space:]]/, "", line); $0 = $0 " " line; } $0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)$([^,]+), ([^)]+)$/, "\\1(\\2, \"\\3\")", "g"); } } { print }' $file; done Requested-by: Masahiro Yamada Signed-off-by: Peter Zijlstra (Intel) Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc Acked-by: Greg KH Signed-off-by: Linus Torvalds

wifi: cfg80211: tests: verify BSS use flags of NSTR links

2024-02-02T13:15:13+00:00

Extend the test to pass an RNR appropriate for an NSTR and verify that use_for as well as cannot_use_reasons are set correctly. Signed-off-by: Benjamin Berg Link: https://msgid.link/20240129220918.b00aee4c4c9f.I942fddf51cabaab761de3865b4e06cce831a46ef@changeid Signed-off-by: Johannes Berg

wifi: cfg80211: add a kunit test for 6 GHz colocated AP parsing

2024-02-02T13:15:11+00:00

Test a few things around parsing of 6 GHz colocated APs to e.g. ensure that we are not going to scan for a disabled (affiliated) AP. Signed-off-by: Benjamin Berg Link: https://msgid.link/20240129220918.079dc50ab43b.Ide898d9f1d4c26d7e774d6fd0ec57766967d6572@changeid Signed-off-by: Johannes Berg

wifi: cfg80211: add RNR with reporting AP information

2024-01-26T08:39:32+00:00

If the reporting AP is part of the same MLD, then an entry in the RNR is required in order to discover it again from the BSS generated from the per-STA profile in the Multi-Link Probe Response. We need this because we do not have a direct concept of an MLD AP and just do the lookup from one to the other on the fly if needed. As such, we need to ensure that this lookup will work both ways. Fixes: 2481b5da9c6b ("wifi: cfg80211: handle BSS data contained in ML probe responses") Signed-off-by: Benjamin Berg Signed-off-by: Miri Korenblit Link: https://msgid.link/20240102213313.4cb3dbb1d84f.I7c74edec83c5d7598cdd578929fd0876d67aef7f@changeid [roll in off-by-one fix and test updates from Benjamin] Signed-off-by: Johannes Berg

wifi: cfg80211: tests: add some scanning related tests

2024-01-03T14:35:22+00:00

This adds some scanning related tests, mainly exercising the ML element parsing and inheritance. Signed-off-by: Benjamin Berg Link: https://msgid.link/20231220151952.415232-7-benjamin@sipsolutions.net Signed-off-by: Johannes Berg