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wifi: cfg80211: restrict cfg80211_chandef_create() to only HT-based bands

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cfg80211_chandef_create() should only be used by bands that are
HT-based and the chantype argument makes sense. Insert a WARN such
that it isn't used on 60GHz and S1GHz bands and to catch any
potential existing uses by those bands.

Suggested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Lachlan Hodges <lachlan.hodges@morsemicro.com>
Link: https://patch.msgid.link/20260312045804.362974-3-lachlan.hodges@morsemicro.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Lachlan Hodges 2026-03-12 15:58:03 +11:00 committed by Johannes Berg
parent a6d4291eae
commit 92d77e06e7
1 changed files with 3 additions and 1 deletions
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4
net/wireless/chan.c
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@ -29,9 +29,11 @@ void cfg80211_chandef_create(struct cfg80211_chan_def *chandef,
*chandef = (struct cfg80211_chan_def) { *chandef = (struct cfg80211_chan_def) {
.chan = chan, .chan = chan,
.freq1_offset = chan->freq_offset,
}; };
WARN_ON(chan->band == NL80211_BAND_60GHZ ||
chan->band == NL80211_BAND_S1GHZ);
switch (chan_type) { switch (chan_type) {
case NL80211_CHAN_NO_HT: case NL80211_CHAN_NO_HT:
chandef->width = NL80211_CHAN_WIDTH_20_NOHT; chandef->width = NL80211_CHAN_WIDTH_20_NOHT;