kernel/net/mac80211/tests/chan-mode.c, branch linux-rolling-stableHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-rolling-stable2025-09-09T17:02:31Zwifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz2025-09-09T17:02:31ZBenjamin Bergbenjamin.berg@intel.com2025-08-26T17:26:01Zurn:sha1:2f2a09eb89716c37f083d0179cc0e592cdd6463e
commit 75575e2d252afb29fdbcbeec4d67e042007add52 upstream.
The EHT PHY requirements state that 80 MHz must be supported on the 5
and 6 GHz bands unless the STA is 20 MHz only. So if the channel width
is limited to 40 MHz on a band other than 2.4 GHz, then disable EHT and
downgrade to HE.
The primary case where this can happen is if the hardware disables
puncturing using IEEE80211_HW_DISALLOW_PUNCTURING.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250826202553.a6582f3abf57.Ic670429dc7127f68c818b4290d950ebfb5a0b9e1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wifi: mac80211: tests: add tests for ieee80211_determine_chan_mode2025-02-11T10:59:07ZBenjamin Bergbenjamin.berg@intel.com2025-02-05T09:39:19Zurn:sha1:b46524b57afdde8ed9ee9567e78d1293ad0e6ea7
Add a few tests for ieee80211_determine_chan_mode that check that
mac80211 will not try to connect to an AP if an advertised basic rate is
not supported.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205110958.530c81eb7fdc.Ia77f5efdf9efb70d2766a3d6bf425553bcb308e8@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>