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From: Kalle Valo <kvalo@kernel.org>
To: ath12k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Subject: [PATCH] wifi: ath12k: enable WIPHY_FLAG_DISABLE_WEXT
Date: Thu, 11 Apr 2024 19:56:45 +0300	[thread overview]
Message-ID: <20240411165645.4071238-1-kvalo@kernel.org> (raw)

From: Kalle Valo <quic_kvalo@quicinc.com>

ath12k will support Multi-Link Operation (MLO) in the future but not yet. A
major change with MLO is that cfg80211 will disable Wireless Extension (WEXT)
user space interface. To avoid having inconsistent user experience, first
supporting WEXT and later not, disable WEXT already now.

Now ath12k claims that WEXT is not supported:

$ iwconfig wlan0
wlan0     no wireless extensions.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/mac.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index f15dcd75157d..e989628d7d72 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -8556,6 +8556,12 @@ static int ath12k_mac_hw_register(struct ath12k_hw *ah)
 	wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
 				   NL80211_FEATURE_AP_SCAN;
 
+	/* MLO is not yet supported so disable Wireless Extensions for now
+	 * to make sure ath12k users don't use it. This flag can be removed
+	 * once WIPHY_FLAG_SUPPORTS_MLO is enabled.
+	 */
+	wiphy->flags |= WIPHY_FLAG_DISABLE_WEXT;
+
 	hw->queues = ATH12K_HW_MAX_QUEUES;
 	wiphy->tx_queue_len = ATH12K_QUEUE_LEN;
 	hw->offchannel_tx_hw_queue = ATH12K_HW_MAX_QUEUES - 1;

base-commit: 363e7193eaf258fe7f04e8db560bd8a282a12cd9
-- 
2.39.2


             reply	other threads:[~2024-04-11 16:56 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-11 16:56 Kalle Valo [this message]
2024-04-11 19:41 ` [PATCH] wifi: ath12k: enable WIPHY_FLAG_DISABLE_WEXT Jeff Johnson
2024-04-11 20:59   ` Jeff Johnson
2024-04-13 19:15     ` Jeff Johnson
2024-04-15 16:27   ` Kalle Valo
2024-04-15 16:59     ` Jeff Johnson
2024-04-15 17:17       ` Kalle Valo
2024-04-18 15:21 ` Kalle Valo

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