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From:   Baochen Qiang <bqiang@codeaurora.org>
To:     ath11k@lists.infradead.org
Cc:     linux-wireless@vger.kernel.org
Subject: [PATCH] ath11k: Identify DFS channel when sending scan channel list command
Date:   Mon, 11 Oct 2021 13:49:19 +0800
Message-Id: <20211011054919.77071-1-bqiang@codeaurora.org>
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WMI_CHAN_INFO_DFS flag should be set when configuring a DFS channel
included in scan channel list. Without it, firmware will not send a
probe request frame which is needed in connection to an AP configured
with hidden SSID/network_id. So fix this to allow probe request frames
to be sent in cases where a beacon frame has been seen on the channel
first.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 2d0acfb748cf..9781b69515dd 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -2371,6 +2371,8 @@ int ath11k_wmi_send_scan_chan_list_cmd(struct ath11k *ar,
 				chan_info->info |= WMI_CHAN_INFO_QUARTER_RATE;
 			if (tchan_info->psc_channel)
 				chan_info->info |= WMI_CHAN_INFO_PSC;
+			if (tchan_info->dfs_set)
+				chan_info->info |= WMI_CHAN_INFO_DFS;
 
 			chan_info->info |= FIELD_PREP(WMI_CHAN_INFO_MODE,
 						      tchan_info->phy_mode);
-- 
2.25.1