[PATCH v2] ath9k: fix DFS detector synchronization
From: Timothy Redaelli <hidden>
Date: 2018-02-14 11:15:09
Subsystem:
atheros ath generic utilities, qualcomm atheros ath9k wireless driver, the rest · Maintainers:
Jeff Johnson, Toke Høiland-Jørgensen, Linus Torvalds
some userspace programs (e.g. hostapd) need to set the regulatory domain before selecting the operating channel. Synchronize DFS detector regardless of the value of ah->curchan, to avoid situations where wireless scan can't be done on some 5GHz sub-bands, because dfs_region is constantly UNSET. Acked-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Timothy Redaelli <redacted> --- drivers/net/wireless/ath/ath9k/init.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index e479fae5aab9..b71b16715f6a 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c@@ -257,6 +257,11 @@ static void ath9k_reg_notifier(struct wiphy *wiphy, ath_reg_notifier_apply(wiphy, request, reg); + /* synchronize DFS detector if regulatory domain changed */ + if (sc->dfs_detector != NULL) + sc->dfs_detector->set_dfs_domain(sc->dfs_detector, + request->dfs_region); + /* Set tx power */ if (!ah->curchan) return;
@@ -267,10 +272,6 @@ static void ath9k_reg_notifier(struct wiphy *wiphy, ath9k_cmn_update_txpow(ah, sc->cur_chan->cur_txpower, sc->cur_chan->txpower, &sc->cur_chan->cur_txpower); - /* synchronize DFS detector if regulatory domain changed */ - if (sc->dfs_detector != NULL) - sc->dfs_detector->set_dfs_domain(sc->dfs_detector, - request->dfs_region); ath9k_ps_restore(sc); }
--
2.14.3