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[PATCH AUTOSEL 4.19 2/5] mac80211: fix user-power when emulating chanctx

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From: Ben Greear <greearb@xxxxxxxxxxxxxxx>

[ Upstream commit 9b15c6cf8d2e82c8427cd06f535d8de93b5b995c ]

ieee80211_calc_hw_conf_chan was ignoring the configured
user_txpower.  If it is set, use it to potentially decrease
txpower as requested.

Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
Link: https://patch.msgid.link/20241010203954.1219686-1-greearb@xxxxxxxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/mac80211/main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index e8c4e9c0c5a09..71d10bdee4309 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -140,6 +140,8 @@ static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
 	}
 
 	power = ieee80211_chandef_max_power(&chandef);
+	if (local->user_power_level != IEEE80211_UNSET_POWER_LEVEL)
+		power = min(local->user_power_level, power);
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-- 
2.43.0





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