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wifi: mt76: mt7921: avoid undesired changes of the preset regulatory domain

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Some countries have strict RF restrictions where changing the regulatory
domain dynamically based on the connected AP is not acceptable.
This patch disables Beacon country IE hinting when a valid country code
is set from usersland (e.g., by system using iw or CRDA).

Signed-off-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Tested-by: David Ruth <druth@chromium.org>
Link: https://patch.msgid.link/20240412085357.13756-1-mingyen.hsieh@mediatek.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Leon Yen
2024-04-12 16:53:57 +08:00
committed by Felix Fietkau
parent 0e19942e6d
commit 2425dc7bea
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wireless/mediatek/mt76/mt7921/init.c
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@@ -137,6 +137,13 @@ mt7921_regd_notifier(struct wiphy *wiphy,
dev->mt76.region = request->dfs_region;
dev->country_ie_env = request->country_ie_env;
if (request->initiator == NL80211_REGDOM_SET_BY_USER) {
if (dev->mt76.alpha2[0] == '0' && dev->mt76.alpha2[1] == '0')
wiphy->regulatory_flags &= ~REGULATORY_COUNTRY_IE_IGNORE;
else
wiphy->regulatory_flags |= REGULATORY_COUNTRY_IE_IGNORE;
}
if (pm->suspended)
return;