apologies please ignore this , wrong patch due to confusing v4 tag
please review,
[PATCH] ath10k: Cleanup calling ath10k_htt_rx_h_unchain
________________________________________
From: Shajakhan, Mohammed Shafi (Mohammed Shafi)
Sent: 27 September 2016 18:31
To: ath10k@xxxxxxxxxxxxxxxxxxx
Cc: mohammed@xxxxxxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx; Shajakhan, Mohammed Shafi (Mohammed Shafi)
Subject: [PATCH v4] ath10k: Cleanup calling ath10k_htt_rx_h_unchain
From: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
'ath10k_htt_rx_h_unchain' is need to be called only if the return
value from 'ath10k_htt_rx_amsdu_pop' is 1('chained msdu's'), this
change makes it more explicit and avoids doing a skb_peek, fetching
rx descriptor pointer, checking rx msdu decap format for the case of
ret = 0 (unchained msdus). Found this change during code walk through,
not sure if this addresses any issue.
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/htt_rx.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 7ae9349..e51dace 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -1459,8 +1459,7 @@ static int ath10k_unchain_msdu(struct sk_buff_head *amsdu)
}
static void ath10k_htt_rx_h_unchain(struct ath10k *ar,
- struct sk_buff_head *amsdu,
- bool chained)
+ struct sk_buff_head *amsdu)
{
struct sk_buff *first;
struct htt_rx_desc *rxd;
@@ -1471,9 +1470,6 @@ static void ath10k_htt_rx_h_unchain(struct ath10k *ar,
decap = MS(__le32_to_cpu(rxd->msdu_start.common.info1),
RX_MSDU_START_INFO1_DECAP_FORMAT);
- if (!chained)
- return;
-
/* FIXME: Current unchaining logic can only handle simple case of raw
* msdu chaining. If decapping is other than raw the chaining may be
* more complex and this isn't handled by the current code. Don't even
@@ -1550,7 +1546,11 @@ static int ath10k_htt_rx_handle_amsdu(struct ath10k_htt *htt)
}
ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
- ath10k_htt_rx_h_unchain(ar, &amsdu, ret > 0);
+
+ /* only for ret = 1 indicates chained msdus */
+ if (ret > 0)
+ ath10k_htt_rx_h_unchain(ar, &amsdu);
+
ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status);
--
1.9.1
