diff options
| author |   Malcolm Priestley <tvboxspy@gmail.com> | 2020-05-16 11:35:22 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-19 16:17:18 +0200 |
| commit | abfd23743d479137ad9912597ca13383f73f01f8 (patch) | |
| tree | ebbfdc031634c4a675f777bdce96ede54d1f47c9 /drivers/staging/vt6656/main_usb.c | |
| parent | staging: wfx: Typo fix (diff) | |
| download | linux-dev-abfd23743d479137ad9912597ca13383f73f01f8.tar.xz linux-dev-abfd23743d479137ad9912597ca13383f73f01f8.zip | |
staging: vt6656: Use sk_buff buffer for tx header
mac80211 can provide space for the driver to put a tx header on
the skb buffer instead coping the entire frame on to a local
buffer with the header.
To use this extra_tx_headroom must be set in mac80211 with the largest
possible header which is struct vnt_tx_buffer.
The driver has 8 possible combinations of tx header size which
are found in vnt_get_hdr_size replacing vnt_mac_hdr_pos.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/7b967bfc-1d4b-4b45-efab-d54f16cca226@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/vt6656/main_usb.c')
| -rw-r--r-- | drivers/staging/vt6656/main_usb.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c index b5790d4d7152..930ee424ecdf 100644 --- a/drivers/staging/vt6656/main_usb.c +++ b/drivers/staging/vt6656/main_usb.c @@ -1053,6 +1053,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id) ieee80211_hw_set(priv->hw, SUPPORTS_PS); ieee80211_hw_set(priv->hw, PS_NULLFUNC_STACK); + priv->hw->extra_tx_headroom = sizeof(struct vnt_tx_buffer); priv->hw->max_signal = 100; SET_IEEE80211_DEV(priv->hw, &intf->dev); |