target/linux/generic/pending-4.14/655-increase_skb_pad.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Subject: kernel: add a few patches for avoiding unnecessary skb reallocations - significantly improves ethernet<->wireless performance
   3
   4 lede-commit: 6f89cffc9add6939d44a6b54cf9a5e77849aa7fd
   5 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   6 ---
   7  include/linux/skbuff.h | 2 +-
   8  1 file changed, 1 insertion(+), 1 deletion(-)
   9
  10 --- a/include/linux/skbuff.h
  11 +++ b/include/linux/skbuff.h
  12 @@ -2496,7 +2496,7 @@ static inline int pskb_network_may_pull(
  13   * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
  14   */
  15  #ifndef NET_SKB_PAD
  16 -#define NET_SKB_PAD    max(32, L1_CACHE_BYTES)
  17 +#define NET_SKB_PAD    max(64, L1_CACHE_BYTES)
  18  #endif
  19
  20  int ___pskb_trim(struct sk_buff *skb, unsigned int len);