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mwifiex: do le_to_cpu conversion for Rx packet header elements 

We do similar conversion for Tx packet header but it was missing
for Rx packet header. Without this fix, Rx packet header won't
be correctly parsed on big endian platform.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Amitkumar Karwar 2012-08-03 18:06:02 -07:00 committed by John W. Linville
parent bda1b1b779
commit ed1ea6f42e
2 changed files with 22 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/wireless/mwifiex/fw.h
View File

@ -424,10 +424,10 @@ struct txpd {
struct rxpd {
u8 bss_type;
u8 bss_num;
u16 rx_pkt_length;
u16 rx_pkt_offset;
u16 rx_pkt_type;
u16 seq_num;
__le16 rx_pkt_length;
__le16 rx_pkt_offset;
__le16 rx_pkt_type;
__le16 seq_num;
u8 priority;
u8 rx_rate;
s8 snr;

38
drivers/net/wireless/mwifiex/sta_rx.c
View File

@ -54,8 +54,8 @@ int mwifiex_process_rx_packet(struct mwifiex_adapter *adapter,
local_rx_pd = (struct rxpd *) (skb->data);
rx_pkt_hdr = (struct rx_packet_hdr *) ((u8 *) local_rx_pd +
local_rx_pd->rx_pkt_offset);
rx_pkt_hdr = (void *)local_rx_pd +
le16_to_cpu(local_rx_pd->rx_pkt_offset);
if (!memcmp(&rx_pkt_hdr->rfc1042_hdr,
rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr))) {
@ -125,7 +125,7 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb);
struct rx_packet_hdr *rx_pkt_hdr;
u8 ta[ETH_ALEN];
u16 rx_pkt_type;
u16 rx_pkt_type, rx_pkt_offset, rx_pkt_length, seq_num;
struct mwifiex_private *priv =
mwifiex_get_priv_by_id(adapter, rx_info->bss_num,
rx_info->bss_type);
@ -134,16 +134,17 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
return -1;
local_rx_pd = (struct rxpd *) (skb->data);
rx_pkt_type = local_rx_pd->rx_pkt_type;
rx_pkt_type = le16_to_cpu(local_rx_pd->rx_pkt_type);
rx_pkt_offset = le16_to_cpu(local_rx_pd->rx_pkt_offset);
rx_pkt_length = le16_to_cpu(local_rx_pd->rx_pkt_length);
seq_num = le16_to_cpu(local_rx_pd->seq_num);
rx_pkt_hdr = (struct rx_packet_hdr *) ((u8 *) local_rx_pd +
local_rx_pd->rx_pkt_offset);
rx_pkt_hdr = (void *)local_rx_pd + rx_pkt_offset;
if ((local_rx_pd->rx_pkt_offset + local_rx_pd->rx_pkt_length) >
(u16) skb->len) {
dev_err(adapter->dev, "wrong rx packet: len=%d,"
" rx_pkt_offset=%d, rx_pkt_length=%d\n", skb->len,
local_rx_pd->rx_pkt_offset, local_rx_pd->rx_pkt_length);
if ((rx_pkt_offset + rx_pkt_length) > (u16) skb->len) {
dev_err(adapter->dev,
"wrong rx packet: len=%d, rx_pkt_offset=%d, rx_pkt_length=%d\n",
skb->len, rx_pkt_offset, rx_pkt_length);
priv->stats.rx_dropped++;
if (adapter->if_ops.data_complete)
@ -154,14 +155,14 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
return ret;
}
if (local_rx_pd->rx_pkt_type == PKT_TYPE_AMSDU) {
if (rx_pkt_type == PKT_TYPE_AMSDU) {
struct sk_buff_head list;
struct sk_buff *rx_skb;
__skb_queue_head_init(&list);
skb_pull(skb, local_rx_pd->rx_pkt_offset);
skb_trim(skb, local_rx_pd->rx_pkt_length);
skb_pull(skb, rx_pkt_offset);
skb_trim(skb, rx_pkt_length);
ieee80211_amsdu_to_8023s(skb, &list, priv->curr_addr,
priv->wdev->iftype, 0, false);
@ -189,17 +190,14 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter,
memcpy(ta, rx_pkt_hdr->eth803_hdr.h_source, ETH_ALEN);
} else {
if (rx_pkt_type != PKT_TYPE_BAR)
priv->rx_seq[local_rx_pd->priority] =
local_rx_pd->seq_num;
priv->rx_seq[local_rx_pd->priority] = seq_num;
memcpy(ta, priv->curr_bss_params.bss_descriptor.mac_address,
ETH_ALEN);
}
/* Reorder and send to OS */
ret = mwifiex_11n_rx_reorder_pkt(priv, local_rx_pd->seq_num,
local_rx_pd->priority, ta,
(u8) local_rx_pd->rx_pkt_type,
skb);
ret = mwifiex_11n_rx_reorder_pkt(priv, seq_num, local_rx_pd->priority,
ta, (u8) rx_pkt_type, skb);
if (ret || (rx_pkt_type == PKT_TYPE_BAR)) {
if (adapter->if_ops.data_complete)