diff options
| author | Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> | 2012-09-21 09:15:24 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2012-10-24 10:49:51 +0200 |
| commit | baec5c6d0b191a44977a5fca131b5215e1868341 (patch) | |
| tree | 03f9a06ef55be9ea35afdc44509312d50a909ef9 /drivers/net/wireless/ath/ath6kl | |
| parent | ath6kl: Check for valid endpoint ID values in ath6kl_control_tx() (diff) | |
| download | linux-baec5c6d0b191a44977a5fca131b5215e1868341.tar.xz linux-baec5c6d0b191a44977a5fca131b5215e1868341.zip | |
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>
Diffstat (limited to 'drivers/net/wireless/ath/ath6kl')
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/txrx.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c index cf4380d573c4..c4501a9f051c 100644 --- a/drivers/net/wireless/ath/ath6kl/txrx.c +++ b/drivers/net/wireless/ath/ath6kl/txrx.c @@ -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; |