mac80211 already provides the correct duration simply
copy it to the tx headers removing the need for driver
to find it with vnt_get_duration_le.
Signed-off-by: Malcolm Priestley <tvboxspy@xxxxxxxxx>
---
drivers/staging/vt6656/rxtx.c | 57 +++++------------------------------
1 file changed, 8 insertions(+), 49 deletions(-)
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 74c1062dbaaa..1003808ac4ad 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -13,7 +13,6 @@
*
* Functions:
* vnt_generate_tx_parameter - Generate tx dma required parameter.
- * vnt_get_duration_le - get tx data required duration
* vnt_get_rtscts_duration_le- get rtx/cts required duration
* vnt_get_rtscts_rsvtime_le- get rts/cts reserved time
* vnt_get_rsvtime- get frame reserved time
@@ -166,27 +165,6 @@ static __le16 vnt_get_rtscts_rsvtime_le(struct vnt_private *priv, u8 rsv_type,
return cpu_to_le16((u16)rrv_time);
}
-static __le16 vnt_get_duration_le(struct vnt_private *priv, u8 pkt_type,
- int need_ack)
-{
- u32 ack_time = 0;
-
- if (need_ack) {
- if (pkt_type == PK_TYPE_11B)
- ack_time = vnt_get_frame_time(priv->preamble_type,
- pkt_type, 14,
- priv->top_cck_basic_rate);
- else
- ack_time = vnt_get_frame_time(priv->preamble_type,
- pkt_type, 14,
- priv->top_ofdm_basic_rate);
-
- return cpu_to_le16((u16)(priv->sifs + ack_time));
- }
-
- return 0;
-}
-
static __le16 vnt_get_rtscts_duration_le(struct vnt_usb_send_context *context,
u8 dur_type, u8 pkt_type, u16 rate)
{
@@ -246,7 +224,6 @@ static u16 vnt_rxtx_datahead_g(struct vnt_usb_send_context *tx_context,
(struct ieee80211_hdr *)tx_context->skb->data;
u32 frame_len = tx_context->frame_len;
u16 rate = tx_context->tx_rate;
- u8 need_ack = tx_context->need_ack;
/* Get SignalField,ServiceField,Length */
vnt_get_phy_field(priv, frame_len, rate, tx_context->pkt_type, &buf->a);
@@ -254,16 +231,8 @@ static u16 vnt_rxtx_datahead_g(struct vnt_usb_send_context *tx_context,
PK_TYPE_11B, &buf->b);
/* Get Duration and TimeStamp */
- if (ieee80211_is_nullfunc(hdr->frame_control)) {
- buf->duration_a = hdr->duration_id;
- buf->duration_b = hdr->duration_id;
- } else {
- buf->duration_a = vnt_get_duration_le(priv,
- tx_context->pkt_type, need_ack);
- buf->duration_b = vnt_get_duration_le(priv,
- PK_TYPE_11B, need_ack);
- }
-
+ buf->duration_a = hdr->duration_id;
+ buf->duration_b = hdr->duration_id;
buf->time_stamp_off_a = vnt_time_stamp_off(priv, rate);
buf->time_stamp_off_b = vnt_time_stamp_off(priv,
priv->top_cck_basic_rate);
@@ -281,20 +250,13 @@ static u16 vnt_rxtx_datahead_ab(struct vnt_usb_send_context *tx_context,
(struct ieee80211_hdr *)tx_context->skb->data;
u32 frame_len = tx_context->frame_len;
u16 rate = tx_context->tx_rate;
- u8 need_ack = tx_context->need_ack;
/* Get SignalField,ServiceField,Length */
vnt_get_phy_field(priv, frame_len, rate,
tx_context->pkt_type, &buf->ab);
/* Get Duration and TimeStampOff */
- if (ieee80211_is_nullfunc(hdr->frame_control)) {
- buf->duration = hdr->duration_id;
- } else {
- buf->duration = vnt_get_duration_le(priv, tx_context->pkt_type,
- need_ack);
- }
-
+ buf->duration = hdr->duration_id;
buf->time_stamp_off = vnt_time_stamp_off(priv, rate);
tx_context->tx_hdr_size = vnt_mac_hdr_pos(tx_context, &buf->hdr);
@@ -721,8 +683,6 @@ int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
memcpy(tx_context->hdr, skb->data, tx_body_size);
- hdr->duration_id = cpu_to_le16(duration_id);
-
if (info->control.hw_key) {
tx_key = info->control.hw_key;
if (tx_key->keylen > 0)
@@ -788,9 +748,7 @@ static int vnt_beacon_xmit(struct vnt_private *priv, struct sk_buff *skb)
vnt_get_phy_field(priv, frame_size, current_rate,
PK_TYPE_11A, &short_head->ab);
- /* Get Duration and TimeStampOff */
- short_head->duration = vnt_get_duration_le(priv,
- PK_TYPE_11A, false);
+ /* Get TimeStampOff */
short_head->time_stamp_off =
vnt_time_stamp_off(priv, current_rate);
} else {
@@ -801,9 +759,7 @@ static int vnt_beacon_xmit(struct vnt_private *priv, struct sk_buff *skb)
vnt_get_phy_field(priv, frame_size, current_rate,
PK_TYPE_11B, &short_head->ab);
- /* Get Duration and TimeStampOff */
- short_head->duration = vnt_get_duration_le(priv,
- PK_TYPE_11B, false);
+ /* Get TimeStampOff */
short_head->time_stamp_off =
vnt_time_stamp_off(priv, current_rate);
}
@@ -812,6 +768,9 @@ static int vnt_beacon_xmit(struct vnt_private *priv, struct sk_buff *skb)
mgmt_hdr = &beacon_buffer->mgmt_hdr;
memcpy(mgmt_hdr, skb->data, skb->len);
+ /* Get Duration */
+ short_head->duration = mgmt_hdr->duration;
+
/* time stamp always 0 */
mgmt_hdr->u.beacon.timestamp = 0;
--
2.25.1
