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authorJohannes Berg <johannes@sipsolutions.net>2009-06-17 15:13:00 +0400
committerJohn W. Linville <linville@tuxdriver.com>2009-07-10 22:57:54 +0400
commitf1d58c2521eb160178b2151d6326d8dc5d7c8560 (patch)
treeaf373bb1a5fbb6bc9436d29095133992d33d6598 /net/mac80211/mesh.c
parent18ad01c43918751cc22f8ee28f6b38b8954a55b2 (diff)
downloadlinux-f1d58c2521eb160178b2151d6326d8dc5d7c8560.tar.xz
mac80211: push rx status into skb->cb
Within mac80211, we often need to copy the rx status into skb->cb. This is wasteful, as drivers could be building it in there to start with. This patch changes the API so that drivers are expected to pass the RX status in skb->cb, now accessible as IEEE80211_SKB_RXCB(skb). It also updates all drivers to pass the rx status in there, but only by making them memcpy() it into place before the call to the receive function (ieee80211_rx(_irqsafe)). Each driver can now be optimised on its own schedule. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mesh.c')
-rw-r--r--net/mac80211/mesh.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 11cf45bce38a..542ea025494e 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -568,7 +568,7 @@ static void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
ifmsh = &sdata->u.mesh;
- rx_status = (struct ieee80211_rx_status *) skb->cb;
+ rx_status = IEEE80211_SKB_RXCB(skb);
mgmt = (struct ieee80211_mgmt *) skb->data;
stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
@@ -671,8 +671,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
}
ieee80211_rx_result
-ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
+ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
@@ -689,7 +688,6 @@ ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
case IEEE80211_STYPE_PROBE_RESP:
case IEEE80211_STYPE_BEACON:
case IEEE80211_STYPE_ACTION:
- memcpy(skb->cb, rx_status, sizeof(*rx_status));
skb_queue_tail(&ifmsh->skb_queue, skb);
queue_work(local->hw.workqueue, &ifmsh->work);
return RX_QUEUED;