Thread (10 messages) flat view 10 messages, 5 authors, 2013-08-29
STALE4766d

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[PATCH net-next 2/3] net: packet: use reciprocal_divide in fanout_demux_hash

From: Daniel Borkmann <hidden>
Date: 2013-08-28 20:13:18
Subsystem: networking [general], packet sockets, the rest · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Willem de Bruijn, Linus Torvalds

Instead of hard-coding reciprocal_divide function, use the inline
function from reciprocal_div.h.

Signed-off-by: Daniel Borkmann <redacted>
---
 net/packet/af_packet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 91596f5..130e2ea 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1135,7 +1135,7 @@ static unsigned int fanout_demux_hash(struct packet_fanout *f,
 				      struct sk_buff *skb,
 				      unsigned int num)
 {
-	return (((u64)skb->rxhash) * num) >> 32;
+	return reciprocal_divide(skb->rxhash, num);
 }
 
 static unsigned int fanout_demux_lb(struct packet_fanout *f,
-- 
1.7.11.7
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