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cfg80211: reject HT/VHT capabilities on 6 GHz band

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On the 6 GHz band, HE should be used, but without any direct HT/VHT
capabilities, instead the HE 6 GHz band capabilities will capture
the relevant information. Reject HT/VHT capabilities here.

Link: https://lore.kernel.org/r/20200528213443.bfe89c35459a.Ibba5e066fa0087fd49d13cfee89d196ea0c68ae2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2020-05-28 21:34:41 +02:00
parent ba8f6a037f
commit 461ce35d55
1 changed files with 6 additions and 1 deletions
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7
net/wireless/core.c
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@ -5,7 +5,7 @@
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright 2015-2017 Intel Deutschland GmbH
* Copyright (C) 2018-2019 Intel Corporation
* Copyright (C) 2018-2020 Intel Corporation
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@ -807,6 +807,11 @@ int wiphy_register(struct wiphy *wiphy)
!sband->n_bitrates))
return -EINVAL;
if (WARN_ON(band == NL80211_BAND_6GHZ &&
(sband->ht_cap.ht_supported ||
sband->vht_cap.vht_supported)))
return -EINVAL;
/*
* Since cfg80211_disable_40mhz_24ghz is global, we can
* modify the sband's ht data even if the driver uses a