ath9k: merge a pending aggregation fix

[openwrt.git] / package / madwifi / patches / 342-performance.patch

diff --git a/package/madwifi/patches/342-performance.patch b/package/madwifi/patches/342-performance.patch
index 8015643..88cec18 100644 (file)
--- a/package/madwifi/patches/342-performance.patch
+++ b/package/madwifi/patches/342-performance.patch
@@ -73,6 +73,7 @@
 -              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);
@@ -83,42 +84,32 @@
 +              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++;
@@ -130,7 +121,14 @@
 -                      /* 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;
@@ -139,7 +137,9 @@
 -                      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++;
@@ -163,10 +163,10 @@
 -                      } else
 -                              ieee80211_skb_copy_noderef(tmp, skb);
 -                      ieee80211_dev_kfree_skb(&tmp);
-               }
+-              }
 -              if (skb) {
 -                      skb->next = skb2;
--              }
+               }
 -              return skb;
 +              skb->next = skb2;
        }