From 4415d58c47e5a48dfd202c63fcfd3d6e653e543b Mon Sep 17 00:00:00 2001
From: Timothy Redaelli <tredaelli@redhat.com>
Date: Tue, 27 Mar 2018 11:25:25 +0300
Subject: [PATCH] ath9k: fix DFS detector synchronization
Git-commit: 4415d58c47e5a48dfd202c63fcfd3d6e653e543b
Patch-mainline: v4.17-rc1
References: FATE#326906
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 <tredaelli@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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);
}
--
2.19.2