linux-kernel - RE: [PATCH 1/1] mwifiex: add tx info to skb when forming mgmt frame

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Date:	Mon, 1 Jul 2013 12:34:05 -0700
From:	Bing Zhao <bzhao@...vell.com>
To:	Harvey Yang <harvey.huawei.yang@...il.com>
CC:	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Avinash Patil <patila@...vell.com>,
	Stone Piao <piaoyun@...vell.com>
Subject: RE: [PATCH 1/1] mwifiex: add tx info to skb when forming mgmt frame

Hi Harvey,

Thanks for your patch.

> From: Huawei Yang <harvey.huawei.yang@...il.com>
> 
> In function 'mwifiex_write_data_complete' it need tx info to find the mwifiex_private to updates
> statistics and wake up tx queues. Or we may trigger tx queues timeout when transmitting lots of mgmt
> frames burstly.

Please shorten the commit log to less than 68 characters per line.

> 
> Signed-off-by: Huawei Yang <harvey.huawei.yang@...il.com>
> ---
>  drivers/net/wireless/mwifiex/cfg80211.c |    4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
> index e42b266..e8655f9 100644
> --- a/drivers/net/wireless/mwifiex/cfg80211.c
> +++ b/drivers/net/wireless/mwifiex/cfg80211.c
> @@ -166,6 +166,10 @@ mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
>  	memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
>  	       buf + sizeof(struct ieee80211_hdr_3addr),
>  	       len - sizeof(struct ieee80211_hdr_3addr));
> +
> +	tx_info = MWIFIEX_SKB_TXCB(skb);
> +	tx_info->bss_num = priv->bss_num;
> +	tx_info->bss_type = priv->bss_type;

This code doesn't compile because both tx_info and priv are undefined in this function.
Perhaps you meant to add it in mwifiex_cfg80211_mgmt_tx() instead?

@@ -216,6 +216,10 @@ mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wirele
                return -ENOMEM;
        }

+       tx_info = MWIFIEX_SKB_TXCB(skb);
+       tx_info->bss_num = priv->bss_num;
+       tx_info->bss_type = priv->bss_type;
+
        mwifiex_form_mgmt_frame(skb, buf, len);
        mwifiex_queue_tx_pkt(priv, skb);

> 
>  	skb->priority = LOW_PRIO_TID;
>  	do_gettimeofday(&tv);

Thanks,
Bing
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