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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-05-27 14:43:58 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-05-27 14:43:58 +0000
commit4cf70ab2e1f2f6b50ccd8d62471507f253c4c003 (patch)
tree437afa2ce20c1a5e28af78144db40d717f81bc48 /target/linux/generic/patches-3.3/655-increase_skb_pad.patch
parent878544bb079df3585b319d65f18633586d57964e (diff)
kernel: add a few patches for avoiding unnecessary skb reallocations - significantly improves ethernet<->wireless performance with mac80211 based drivers
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31886 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.3/655-increase_skb_pad.patch')
-rw-r--r--target/linux/generic/patches-3.3/655-increase_skb_pad.patch11
1 files changed, 11 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/655-increase_skb_pad.patch b/target/linux/generic/patches-3.3/655-increase_skb_pad.patch
new file mode 100644
index 000000000..5d14daadf
--- /dev/null
+++ b/target/linux/generic/patches-3.3/655-increase_skb_pad.patch
@@ -0,0 +1,11 @@
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -1558,7 +1558,7 @@ static inline int pskb_network_may_pull(
+ * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
+ */
+ #ifndef NET_SKB_PAD
+-#define NET_SKB_PAD max(32, L1_CACHE_BYTES)
++#define NET_SKB_PAD max(48, L1_CACHE_BYTES)
+ #endif
+
+ extern int ___pskb_trim(struct sk_buff *skb, unsigned int len);