package/kernel/mac80211/patches/005-backport_skb_get_hash_perturb.patch

   1 --- a/backport-include/linux/skbuff.h
   2 +++ b/backport-include/linux/skbuff.h
   3 @@ -1,6 +1,8 @@
   4  #ifndef __BACKPORT_SKBUFF_H
   5  #define __BACKPORT_SKBUFF_H
   6  #include_next <linux/skbuff.h>
   7 +#include <net/flow_keys.h>
   8 +#include <linux/jhash.h>
   9  #include <linux/version.h>
  10  #include <generated/utsrelease.h>
  11
  12 @@ -305,6 +307,16 @@ static inline void skb_free_frag(void *d
  13  {
  14         put_page(virt_to_head_page(data));
  15  }
  16 +
  17 +static inline u32 skb_get_hash_perturb(struct sk_buff *skb, u32 key)
  18 +{
  19 +       struct flow_keys keys;
  20 +
  21 +       skb_flow_dissect(skb, &keys);
  22 +       return jhash_3words((__force u32)keys.dst,
  23 +                           (__force u32)keys.src ^ keys.ip_proto,
  24 +                           (__force u32)keys.ports, key);
  25 +}
  26  #endif
  27
  28  #endif /* __BACKPORT_SKBUFF_H */