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staging: vt6656: use NULLFUCTION stack on mac80211 

It appears that the drivers does not go into power save correctly the
NULL data packets are not being transmitted because it not enabled
in mac80211.

The driver needs to capture ieee80211_is_nullfunc headers and
copy the duration_id to it's own duration data header.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/610971ae-555b-a6c3-61b3-444a0c1e35b4@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2020-01-08 21:41:20 +00:00 committed by Greg Kroah-Hartman
parent d971fdd341
commit d579c43c82
2 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/staging/vt6656/main_usb.c
View File

@ -1014,6 +1014,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
ieee80211_hw_set(priv->hw, REPORTS_TX_ACK_STATUS);
ieee80211_hw_set(priv->hw, SUPPORTS_PS);
ieee80211_hw_set(priv->hw, PS_NULLFUNC_STACK);
priv->hw->max_signal = 100;

14
drivers/staging/vt6656/rxtx.c
View File

@ -278,11 +278,9 @@ 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_pspoll(hdr->frame_control)) {
__le16 dur = cpu_to_le16(priv->current_aid | BIT(14) | BIT(15));
buf->duration_a = dur;
buf->duration_b = dur;
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);
@ -371,10 +369,8 @@ static u16 vnt_rxtx_datahead_ab(struct vnt_usb_send_context *tx_context,
tx_context->pkt_type, &buf->ab);
/* Get Duration and TimeStampOff */
if (ieee80211_is_pspoll(hdr->frame_control)) {
__le16 dur = cpu_to_le16(priv->current_aid | BIT(14) | BIT(15));
buf->duration = dur;
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);