[PATCH] ath10k: skip management frames in HTT path

* [PATCH] ath10k: skip management frames in HTT path
@ 2014-02-25  6:56 ` Janusz Dziedzic
  0 siblings, 0 replies; 8+ messages in thread
From: Janusz Dziedzic @ 2014-02-25  6:56 UTC (permalink / raw)
  To: ath10k; +Cc: linux-wireless, Janusz Dziedzic

After we pass frames with INV_PEER to upper layer in patch:

ath10k: pass frames with invalid peer status to upper layer

we could pass some management frames (in case INVALID_PEER
and MGMT_CTRL) twice to upper layer, once via WMI and once
via HTT. Next we could handle assoc request twice. This
patch remove such regression.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c |   17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index c7a5822..316433f 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -852,6 +852,20 @@ static bool ath10k_htt_rx_has_mic_err(struct sk_buff *skb)
 	return false;
 }
 
+static bool ath10k_htt_rx_is_mgmt(struct sk_buff *skb)
+{
+	struct htt_rx_desc *rxd;
+	u32 flags;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	flags = __le32_to_cpu(rxd->attention.flags);
+
+	if (flags & RX_ATTENTION_FLAGS_MGMT_TYPE)
+		return true;
+
+	return false;
+}
+
 static int ath10k_htt_rx_get_csum_state(struct sk_buff *skb)
 {
 	struct htt_rx_desc *rxd;
@@ -944,7 +958,8 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 			status = info.status;
 
 			/* Skip mgmt frames while we handle this in WMI */
-			if (status == HTT_RX_IND_MPDU_STATUS_MGMT_CTRL) {
+			if (status == HTT_RX_IND_MPDU_STATUS_MGMT_CTRL ||
+			    ath10k_htt_rx_is_mgmt(msdu_head)) {
 				ath10k_htt_rx_free_msdu_chain(msdu_head);
 				continue;
 			}
-- 
1.7.9.5


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