Re: [PATCH v2] ath10k: Cleanup calling ath10k_htt_rx_h_unchain

[Valo, Kalle]

Mohammed Shafi Shajakhan  writes:

> From: Mohammed Shafi Shajakhan 
>
> 'ath10k_htt_rx_h_unchain' needs 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 

Applied to ath-next, thanks.

(The SMTP server failed, needed to send this manually)

-- 
Kalle Valo

[PATCH v2] ath10k: Cleanup calling ath10k_htt_rx_h_unchain

[Mohammed Shafi Shajakhan]

From: Mohammed Shafi Shajakhan 

'ath10k_htt_rx_h_unchain' needs 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 
---
[v2 rebased over top of master tree]

 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 0b4c156..285b235 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -1463,8 +1463,7 @@ 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;
@@ -1475,9 +1474,6 @@ 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
@@ -1555,7 +1551,11 @@ static int ath10k_htt_rx_handle_amsdu(struct ath10k_htt 
*htt)
 
num_msdus = skb_queue_len();
ath10k_htt_rx_h_ppdu(ar, , rx_status, 0x);
-   ath10k_htt_rx_h_unchain(ar, , ret > 0);
+
+   /* only for ret = 1 indicates chained msdus */
+   if (ret > 0)
+   ath10k_htt_rx_h_unchain(ar, );
+
ath10k_htt_rx_h_filter(ar, , rx_status);
ath10k_htt_rx_h_mpdu(ar, , rx_status);
ath10k_htt_rx_h_deliver(ar, , rx_status);
-- 
1.7.9.5