mac80211: restructuring data Rx handlers

This patch restructures the Rx handlers chain by incorporating previously
handlers ieee80211_rx_h_802_1x_pae and ieee80211_rx_h_drop_unencrypted
into ieee80211_rx_h_data, already in 802.3 form. this scheme follows more
precisely after the IEEE802.11 data plane archituecture, and will prevent
code duplication to IEEE8021.11n A-MSDU handler.

added function:
 - ieee80211_data_to_8023: transfering 802.11 data frames to 802.3 frame
 - ieee80211_deliver_skb: delivering the 802.3 frames to upper stack
eliminated handlers:
 - ieee80211_rx_h_drop_unencrypted: now function ieee80211_drop_unencrypted
 - ieee80211_rx_h_802_1x_pae: now function ieee80211_802_1x_pae
changed handlers:
 - ieee80211_rx_h_data: now contains calls to four above function

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 13 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 88f262baaa5e..5227c16f113e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -218,23 +218,11 @@ int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
 
-int ieee80211_is_eapol(const struct sk_buff *skb)
+int ieee80211_is_eapol(const struct sk_buff *skb, int hdrlen)
 {
-        const struct ieee80211_hdr *hdr;
-        u16 fc;
-        int hdrlen;
-
         if (unlikely(skb->len < 10))
                 return 0;
 
-        hdr = (const struct ieee80211_hdr *) skb->data;
-        fc = le16_to_cpu(hdr->frame_control);
-
-        if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
-                return 0;
-
-        hdrlen = ieee80211_get_hdrlen(fc);
-
         if (unlikely(skb->len >= hdrlen + sizeof(eapol_header) &&
                      memcmp(skb->data + hdrlen, eapol_header,
                             sizeof(eapol_header)) == 0))