[PATCH 3/4] ath10k: set def key idx for ibss

[Michal Kazior <michal.kazior@tieto.com>]

Some time ago there was a weird issue with AP
using wrong multicast keys and generating
corrupted traffic on 10.1 firmware.

Apparently a very similar problem applies for
IBSS-RSN on 999.999.0.636.

ath10k doesn't have IBSS-RSN enabled yet. This
patch is a prerequisite to support it.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 93f753cb839a..9428d75d0d76 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4691,10 +4691,14 @@ static void ath10k_set_key_h_def_keyidx(struct ath10k *ar,
 	 * frames with multi-vif APs. This is not required for main firmware
 	 * branch (e.g. 636).
 	 *
-	 * FIXME: This has been tested only in AP. It remains unknown if this
-	 * is required for multi-vif STA interfaces on 10.1 */
+	 * This is also needed for 636 fw for IBSS-RSN to work more reliably.
+	 *
+	 * FIXME: It remains unknown if this is required for multi-vif STA
+	 * interfaces on 10.1.
+	 */
 
-	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
+	if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
+	    arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
 		return;
 
 	if (key->cipher == WLAN_CIPHER_SUITE_WEP40)
-- 
2.1.4