From: Jason Mobarak <j...@cozybit.com>

Patch "wcn36xx: Pad TIM PVM if needed" has caused a regression in mesh
beaconing.  The field tim_off is always 0 for mesh mode, and thus
pvm_len (referring to the TIM length field) and pad are both incorrectly
calculated.  Thus, msg_body.beacon_length is incorrectly calculated for
mesh mode. Fix this.

Signed-off-by: Jason Mobarak <j...@cozybit.com>
Signed-off-by: Chun-Yeow Yeoh <yeohchuny...@cozybit.com>
Signed-off-by: Bjorn Andersson <bjorn.anders...@linaro.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c 
b/drivers/net/wireless/ath/wcn36xx/smd.c
index a57d158298a1..b1bdc229e560 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1410,6 +1410,11 @@ int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct 
ieee80211_vif *vif,
 
        pvm_len = skb_beacon->data[tim_off + 1] - 3;
        pad = TIM_MIN_PVM_SIZE - pvm_len;
+
+       /* Padding is irrelevant to mesh mode since tim_off is always 0. */
+       if (vif->type == NL80211_IFTYPE_MESH_POINT)
+               pad = 0;
+
        msg_body.beacon_length = skb_beacon->len + pad;
        /* TODO need to find out why + 6 is needed */
        msg_body.beacon_length6 = msg_body.beacon_length + 6;
-- 
2.5.0

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