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ath6kl: Fix random rx data corruption 

The skb->tail pointer of rx buffers is not adjusted
after skb->data pointer is aligned to 4-byte, this
causes random rx data corruption.

Signed-off-by: Jin Navy <nhjin@qca.qualcomm.com>
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 2012-09-21 12:45:24 +05:30 committed by Kalle Valo
parent 363f149ce3
commit baec5c6d0b
1 changed files with 8 additions and 2 deletions
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10
drivers/net/wireless/ath/ath6kl/txrx.c
View File

@ -894,8 +894,11 @@ void ath6kl_rx_refill(struct htc_target *target, enum htc_endpoint_id endpoint)
break;
packet = (struct htc_packet *) skb->head;
if (!IS_ALIGNED((unsigned long) skb->data, 4))
if (!IS_ALIGNED((unsigned long) skb->data, 4)) {
size_t len = skb_headlen(skb);
skb->data = PTR_ALIGN(skb->data - 4, 4);
skb_set_tail_pointer(skb, len);
}
set_htc_rxpkt_info(packet, skb, skb->data,
ATH6KL_BUFFER_SIZE, endpoint);
packet->skb = skb;
@ -917,8 +920,11 @@ void ath6kl_refill_amsdu_rxbufs(struct ath6kl *ar, int count)
return;
packet = (struct htc_packet *) skb->head;
if (!IS_ALIGNED((unsigned long) skb->data, 4))
if (!IS_ALIGNED((unsigned long) skb->data, 4)) {
size_t len = skb_headlen(skb);
skb->data = PTR_ALIGN(skb->data - 4, 4);
skb_set_tail_pointer(skb, len);
}
set_htc_rxpkt_info(packet, skb, skb->data,
ATH6KL_AMSDU_BUFFER_SIZE, 0);
packet->skb = skb;