From:   Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
To:     "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
CC:     Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>,
        Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Subject: [PATCH 08/14] qtnfmac: update bands information on CHANGE_INTF
 command
Thread-Topic: [PATCH 08/14] qtnfmac: update bands information on CHANGE_INTF
 command
Thread-Index: AQHU3wQ9Z0X/yrDRJU+EohBTQKyVyg==
Date:   Wed, 20 Mar 2019 10:04:00 +0000
Message-ID: <20190320100340.14168-9-sergey.matyukevich.os@quantenna.com>
References: <20190320100340.14168-1-sergey.matyukevich.os@quantenna.com>
In-Reply-To: <20190320100340.14168-1-sergey.matyukevich.os@quantenna.com>
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From: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>

In some regions, different regulatory limits (like max Tx power) may be
defined for different operating modes. As an example: in ETSI regions
DFS master devices may use higher transmit powers compared to DFS slave
devices. Update bands information in CHANGE_INTF command if mode of
operation changes.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
---
 drivers/net/wireless/quantenna/qtnfmac/commands.c | 21 +++++++++++++++++++=
--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/ne=
t/wireless/quantenna/qtnfmac/commands.c
index cc7f74333f48..2e658e394dc6 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -786,8 +786,25 @@ int qtnf_cmd_send_change_intf_type(struct qtnf_vif *vi=
f,
 				   int use4addr,
 				   u8 *mac_addr)
 {
-	return qtnf_cmd_send_add_change_intf(vif, iftype, use4addr, mac_addr,
-					     QLINK_CMD_CHANGE_INTF);
+	int ret;
+
+	ret =3D qtnf_cmd_send_add_change_intf(vif, iftype, use4addr, mac_addr,
+					    QLINK_CMD_CHANGE_INTF);
+
+	/* Regulatory settings may be different for different interface types */
+	if (ret =3D=3D 0 && vif->wdev.iftype !=3D iftype) {
+		enum nl80211_band band;
+		struct wiphy *wiphy =3D priv_to_wiphy(vif->mac);
+
+		for (band =3D 0; band < NUM_NL80211_BANDS; ++band) {
+			if (!wiphy->bands[band])
+				continue;
+
+			qtnf_cmd_band_info_get(vif->mac, wiphy->bands[band]);
+		}
+	}
+
+	return ret;
 }
=20
 int qtnf_cmd_send_del_intf(struct qtnf_vif *vif)
--=20
2.11.0