diff options
| -rw-r--r-- | backport/backport-include/linux/skbuff.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/backport/backport-include/linux/skbuff.h b/backport/backport-include/linux/skbuff.h index 61f3b98f..034206b6 100644 --- a/backport/backport-include/linux/skbuff.h +++ b/backport/backport-include/linux/skbuff.h @@ -306,14 +306,28 @@ static inline void skb_free_frag(void *data) put_page(virt_to_head_page(data)); } -/* iwlwifi doesn't need this function, so it's safe to just return 0 */ -static inline -__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb) +#if LINUX_VERSION_IS_LESS(3,3,0) + +static inline u32 skb_get_hash_perturb(struct sk_buff *skb, u32 key) { return 0; } -#endif +#else +#include <net/flow_keys.h> +#include <linux/jhash.h> + +static inline u32 skb_get_hash_perturb(struct sk_buff *skb, u32 key) +{ + struct flow_keys keys; + + skb_flow_dissect(skb, &keys); + return jhash_3words((__force u32)keys.dst, + (__force u32)keys.src ^ keys.ip_proto, + (__force u32)keys.ports, key); +} +#endif /* LINUX_VERSION_IS_LESS(3,3,0) */ +#endif /* LINUX_VERSION_IS_LESS(4,2,0) */ #if LINUX_VERSION_IS_LESS(4,13,0) static inline void *backport_skb_put(struct sk_buff *skb, unsigned int len) |