diff options
Diffstat (limited to 'package/madwifi/patches/342-performance.patch')
| -rw-r--r-- | package/madwifi/patches/342-performance.patch | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/package/madwifi/patches/342-performance.patch b/package/madwifi/patches/342-performance.patch index 8015643dc..88cec182d 100644 --- 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; } |