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authorHelmut Schaa <helmut.schaa@googlemail.com>2011-12-19 11:39:54 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-01-04 14:28:07 -0500
commitb423db5b356749e3e39faad607d387cd4c1a9d30 (patch)
tree59d89927aea6c1e93f5728a1a9eb89b436f538f4 /net
parentdc0d633e35643662f27a0b1c531da3cd6b204b9c (diff)
downloadlinux-b423db5b356749e3e39faad607d387cd4c1a9d30.tar.bz2
mac80211: Remove superfluous ieee80211_rx_h_remove_qos_control
This seems to not serve any purpose anymore, at least all frame processing afterwards seems to be able to deal with QoS frames. So, let's save the expensive memmove and just leave the QoS header in the 802.11 frame for further processing. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/rx.c20
1 files changed, 0 insertions, 20 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 59f124c58333..f407427c642f 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1576,25 +1576,6 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
return RX_CONTINUE;
}
-static ieee80211_rx_result debug_noinline
-ieee80211_rx_h_remove_qos_control(struct ieee80211_rx_data *rx)
-{
- u8 *data = rx->skb->data;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)data;
-
- if (!ieee80211_is_data_qos(hdr->frame_control))
- return RX_CONTINUE;
-
- /* remove the qos control field, update frame type and meta-data */
- memmove(data + IEEE80211_QOS_CTL_LEN, data,
- ieee80211_hdrlen(hdr->frame_control) - IEEE80211_QOS_CTL_LEN);
- hdr = (struct ieee80211_hdr *)skb_pull(rx->skb, IEEE80211_QOS_CTL_LEN);
- /* change frame type to non QOS */
- hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
-
- return RX_CONTINUE;
-}
-
static int
ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx)
{
@@ -2718,7 +2699,6 @@ static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx)
if (ieee80211_vif_is_mesh(&rx->sdata->vif))
CALL_RXH(ieee80211_rx_h_mesh_fwding);
#endif
- CALL_RXH(ieee80211_rx_h_remove_qos_control)
CALL_RXH(ieee80211_rx_h_amsdu)
CALL_RXH(ieee80211_rx_h_data)
CALL_RXH(ieee80211_rx_h_ctrl);