diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 10 | ||||
| -rw-r--r-- | net/core/skbuff.c | 1 |
2 files changed, 7 insertions, 4 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 6578d9483043..e485cb37228f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2519,10 +2519,11 @@ static inline void ____napi_schedule(struct softnet_data *sd, /* * __skb_get_rxhash: calculate a flow hash based on src/dst addresses - * and src/dst port numbers. Returns a non-zero hash number on success - * and 0 on failure. + * and src/dst port numbers. Sets rxhash in skb to non-zero hash value + * on success, zero indicates no valid hash. Also, sets l4_rxhash in skb + * if hash is a canonical 4-tuple hash over transport ports. */ -__u32 __skb_get_rxhash(struct sk_buff *skb) +void __skb_get_rxhash(struct sk_buff *skb) { int nhoff, hash = 0, poff; const struct ipv6hdr *ip6; @@ -2574,6 +2575,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb) ports.v32 = * (__force u32 *) (skb->data + nhoff); if (ports.v16[1] < ports.v16[0]) swap(ports.v16[0], ports.v16[1]); + skb->l4_rxhash = 1; } } @@ -2586,7 +2588,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb) hash = 1; done: - return hash; + skb->rxhash = hash; } EXPORT_SYMBOL(__skb_get_rxhash); diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 27002dffe7ed..edb66f3e24f1 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -529,6 +529,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old) new->mac_header = old->mac_header; skb_dst_copy(new, old); new->rxhash = old->rxhash; + new->l4_rxhash = old->l4_rxhash; #ifdef CONFIG_XFRM new->sp = secpath_get(old->sp); #endif |