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ath6kl: Fix tx packet drop in AP mode with bridge 

skb is dropped in ath6kl_data_tx() when the headroom in skb
is insufficient. We hit this condition for every skb in AP mode
which is used with bridge, so all tx packets are getting dropped
when tried to send traffic to wireless client from bridge. Fix
this by reallocating the headroom instead of dropping the skb
when it has lesser headroom than needed.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2011-11-04 15:48:51 +05:30 committed by Kalle Valo
parent 902b46293b
commit a29517ce40
1 changed files with 8 additions and 2 deletions
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10
drivers/net/wireless/ath/ath6kl/txrx.c
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@ -266,8 +266,14 @@ int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev)
if (test_bit(WMI_ENABLED, &ar->flag)) {
if (skb_headroom(skb) < dev->needed_headroom) {
WARN_ON(1);
goto fail_tx;
struct sk_buff *tmp_skb = skb;
skb = skb_realloc_headroom(skb, dev->needed_headroom);
kfree_skb(tmp_skb);
if (skb == NULL) {
vif->net_stats.tx_dropped++;
return 0;
}
}
if (ath6kl_wmi_dix_2_dot3(ar->wmi, skb)) {