Extend ieee80211_hw's extra_hdr_room to be a bytecount for
a device specific TX header instead of being a hardcoded
0/2 byte choice.

Signed-off-by: Michael Buesch <[EMAIL PROTECTED]>

diff --git a/include/net/d80211.h b/include/net/d80211.h
index a80f48b..9e9709f 100644
--- a/include/net/d80211.h
+++ b/include/net/d80211.h
@@ -476,10 +476,6 @@ struct ieee80211_hw {
        /* Force software encryption for TKIP packets if WMM is enabled. */
        unsigned int no_tkip_wmm_hwaccel:1;
 
-       /* set if the payload needs to be padded at even boundaries after the
-        * header */
-       unsigned int extra_hdr_room:1;
-
        /* Some devices handle Michael MIC internally and do not include MIC in
         * the received packets passed up. device_strips_mic must be set
         * for such devices. The 'encryption' frame control bit is expected to
@@ -496,6 +492,9 @@ struct ieee80211_hw {
         * i.e. more than one skb per frame */
        unsigned int fraglist:1;
 
+       /* Set to the size of a needed device specific skb headroom for TX 
skbs. */
+       unsigned int extra_hdr_room;
+
         /* This is the time in us to change channels
          */
         int channel_change_time;
diff --git a/net/d80211/ieee80211.c b/net/d80211/ieee80211.c
index 1ef2707..7d52c3b 100644
--- a/net/d80211/ieee80211.c
+++ b/net/d80211/ieee80211.c
@@ -1551,7 +1551,7 @@ static int ieee80211_subif_start_xmit(st
         * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
         * alloc_skb() (net/core/skbuff.c)
         */
-       head_need = hdrlen + encaps_len + (local->hw->extra_hdr_room ? 2 : 0);
+       head_need = hdrlen + encaps_len + local->hw->extra_hdr_room;
        head_need -= skb_headroom(skb);
 
        /* We are going to modify skb data, so make a copy of it if happens to


-- 
Greetings Michael.
-
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