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flow_dissector: Abstract out hash computation

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Move the hash computation located in __skb_get_hash to be a separate
function which takes flow_keys as input. This will allow flow hash
computation in other contexts where we only have addresses and ports.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert
2014-07-01 21:32:05 -07:00
committed by David S. Miller
parent 081a20ffcc
commit 5ed20a68cd
2 changed files with 29 additions and 16 deletions
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include/net/flow_keys.h
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@@ -29,4 +29,5 @@ struct flow_keys {
bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow);
__be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto);
u32 flow_hash_from_keys(struct flow_keys *keys);
#endif