--- a/ath/if_ath.c
+++ b/ath/if_ath.c
-@@ -3237,7 +3237,6 @@
+@@ -3239,7 +3239,6 @@ ath_hardstart(struct sk_buff *skb, struc
struct ath_softc *sc = dev->priv;
struct ieee80211_node *ni = NULL;
struct ath_buf *bf = NULL;
ath_bufhead bf_head;
struct ath_buf *tbf, *tempbf;
struct sk_buff *tskb;
-@@ -3249,6 +3248,7 @@
+@@ -3251,6 +3250,7 @@ ath_hardstart(struct sk_buff *skb, struc
*/
int requeue = 0;
#ifdef ATH_SUPERG_FF
unsigned int pktlen;
struct ieee80211com *ic = &sc->sc_ic;
struct ath_node *an;
-@@ -3314,27 +3314,9 @@
+@@ -3316,27 +3316,9 @@ ath_hardstart(struct sk_buff *skb, struc
requeue = 1;
goto hardstart_fail;
}
ATH_TXQ_LOCK_IRQ(txq);
--- a/net80211/ieee80211_output.c
+++ b/net80211/ieee80211_output.c
-@@ -283,7 +283,7 @@
+@@ -283,7 +283,7 @@ ieee80211_hardstart(struct sk_buff *skb,
* normal vap. */
if (vap->iv_xrvap && (ni == vap->iv_bss) &&
vap->iv_xrvap->iv_sta_assoc) {
if (skb1) {
memset(SKB_CB(skb1), 0, sizeof(struct ieee80211_cb));
#ifdef IEEE80211_DEBUG_REFCNT
-@@ -566,7 +566,7 @@
+@@ -566,7 +566,7 @@ ieee80211_skbhdr_adjust(struct ieee80211
struct ieee80211_key *key, struct sk_buff *skb, int ismulticast)
{
/* XXX pre-calculate per node? */
int need_tailroom = 0;
#ifdef ATH_SUPERG_FF
int isff = ATH_FF_MAGIC_PRESENT(skb);
-@@ -608,109 +608,56 @@
+@@ -608,109 +608,56 @@ ieee80211_skbhdr_adjust(struct ieee80211
need_tailroom += cip->ic_miclen;
}
- ieee80211_ref_node(SKB_CB(skb)->ni);
- /* Unshare the node, decrementing users in the old skb */
- skb = skb_unshare(skb, GFP_ATOMIC);
+- }
+ need_headroom -= skb_headroom(skb);
+ if (isff)
+ need_tailroom -= skb_tailroom(skb2);
+ need_headroom = 0;
+ if (need_tailroom < 0)
+ need_tailroom = 0;
-+
-+ if (skb_cloned(skb) || (need_headroom > 0) ||
-+ (!isff && (need_tailroom > 0))) {
-+
-+ if (pskb_expand_head(skb, need_headroom, need_tailroom, GFP_ATOMIC)) {
-+ IEEE80211_DPRINTF(vap, IEEE80211_MSG_OUTPUT,
-+ "%s: cannot expand storage (tail)\n", __func__);
-+ goto error;
-+ }
- }
- #ifdef ATH_SUPERG_FF
- if (isff) {
+-#ifdef ATH_SUPERG_FF
+- if (isff) {
- if (skb == NULL) {
- IEEE80211_DPRINTF(vap, IEEE80211_MSG_OUTPUT,
- "%s: cannot unshare for encapsulation\n",
- __func__);
- vap->iv_stats.is_tx_nobuf++;
- ieee80211_dev_kfree_skb(&skb2);
--
++ if (skb_cloned(skb) || (need_headroom > 0) ||
++ (!isff && (need_tailroom > 0))) {
+
- return NULL;
-- }
-+ inter_headroom -= skb_headroom(skb2);
-+ if (inter_headroom < 0)
-+ inter_headroom = 0;
-+ if ((skb_cloned(skb2) ||
-+ (inter_headroom > 0) || (need_tailroom > 0))) {
++ if (pskb_expand_head(skb, need_headroom, need_tailroom, GFP_ATOMIC)) {
++ IEEE80211_DPRINTF(vap, IEEE80211_MSG_OUTPUT,
++ "%s: cannot expand storage (tail)\n", __func__);
++ goto error;
+ }
++ }
- /* first skb header */
- if (skb_headroom(skb) < need_headroom) {
- struct sk_buff *tmp = skb;
- skb = skb_realloc_headroom(skb, need_headroom);
- if (skb == NULL) {
-+ if (pskb_expand_head(skb2, inter_headroom,
-+ need_tailroom, GFP_ATOMIC)) {
- IEEE80211_DPRINTF(vap, IEEE80211_MSG_OUTPUT,
+- IEEE80211_DPRINTF(vap, IEEE80211_MSG_OUTPUT,
- "%s: cannot expand storage (head1)\n",
- __func__);
- vap->iv_stats.is_tx_nobuf++;
- /* NB: cb[] area was copied, but not next ptr. must do that
- * prior to return on success. */
- }
--
++#ifdef ATH_SUPERG_FF
++ if (isff) {
++ inter_headroom -= skb_headroom(skb2);
++ if (inter_headroom < 0)
++ inter_headroom = 0;
++ if ((skb_cloned(skb2) ||
++ (inter_headroom > 0) || (need_tailroom > 0))) {
+
- /* second skb with header and tail adjustments possible */
- if (skb_tailroom(skb2) < need_tailroom) {
- int n = 0;
- if (pskb_expand_head(skb2, n,
- need_tailroom - skb_tailroom(skb2), GFP_ATOMIC)) {
- ieee80211_dev_kfree_skb(&skb2);
-- IEEE80211_DPRINTF(vap, IEEE80211_MSG_OUTPUT,
++ if (pskb_expand_head(skb2, inter_headroom,
++ need_tailroom, GFP_ATOMIC)) {
+ IEEE80211_DPRINTF(vap, IEEE80211_MSG_OUTPUT,
- "%s: cannot expand storage (tail2)\n",
- __func__);
- vap->iv_stats.is_tx_nobuf++;
- } else
- ieee80211_skb_copy_noderef(tmp, skb);
- ieee80211_dev_kfree_skb(&tmp);
- }
+- }
- if (skb) {
- skb->next = skb2;
-- }
+ }
- return skb;
+ skb->next = skb2;
}
#define KEY_UNDEFINED(k) ((k).wk_cipher == &ieee80211_cipher_none)
--- a/net80211/ieee80211_input.c
+++ b/net80211/ieee80211_input.c
-@@ -204,7 +204,6 @@
+@@ -204,7 +204,6 @@ ieee80211_input(struct ieee80211vap * va
struct ieee80211_frame *wh;
struct ieee80211_key *key;
struct ether_header *eh;
#ifdef ATH_SUPERG_FF
struct llc *llc;
#endif
-@@ -244,20 +243,6 @@
+@@ -244,20 +243,6 @@ ieee80211_input(struct ieee80211vap * va
vap->iv_stats.is_rx_tooshort++;
goto out;
}
/*
* Bit of a cheat here, we use a pointer for a 3-address
-@@ -738,7 +723,7 @@
+@@ -738,7 +723,7 @@ ieee80211_input(struct ieee80211vap * va
/* ether_type must be length as FF frames are always LLC/SNAP encap'd */
frame_len = ntohs(eh_tmp->ether_type);
if (skb1 == NULL)
goto err;
ieee80211_skb_copy_noderef(skb, skb1);
-@@ -1137,7 +1122,7 @@
+@@ -1137,7 +1122,7 @@ ieee80211_deliver_data(struct ieee80211_
if (ETHER_IS_MULTICAST(eh->ether_dhost) && !netif_queue_stopped(dev)) {
/* Create a SKB for the BSS to send out. */