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rps: Some minor cleanup in get_rps_cpus

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Use some variables for clarity and extensibility.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2011-08-14 19:45:04 +00:00 committed by David S. Miller
parent f1deab5022
commit 792df22cd0
1 changed files with 7 additions and 5 deletions
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12
net/core/dev.c
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@ -2528,15 +2528,17 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
const struct ipv6hdr *ip6;
const struct iphdr *ip;
u8 ip_proto;
u32 addr1, addr2, ihl;
u32 addr1, addr2;
u16 proto;
union {
u32 v32;
u16 v16[2];
} ports;
nhoff = skb_network_offset(skb);
proto = skb->protocol;
switch (skb->protocol) {
switch (proto) {
case __constant_htons(ETH_P_IP):
if (!pskb_may_pull(skb, sizeof(*ip) + nhoff))
goto done;
@ -2548,7 +2550,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
ip_proto = ip->protocol;
addr1 = (__force u32) ip->saddr;
addr2 = (__force u32) ip->daddr;
ihl = ip->ihl;
nhoff += ip->ihl * 4;
break;
case __constant_htons(ETH_P_IPV6):
if (!pskb_may_pull(skb, sizeof(*ip6) + nhoff))
@ -2558,7 +2560,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
ip_proto = ip6->nexthdr;
addr1 = (__force u32) ip6->saddr.s6_addr32[3];
addr2 = (__force u32) ip6->daddr.s6_addr32[3];
ihl = (40 >> 2);
nhoff += 40;
break;
default:
goto done;
@ -2567,7 +2569,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
ports.v32 = 0;
poff = proto_ports_offset(ip_proto);
if (poff >= 0) {
nhoff += ihl * 4 + poff;
nhoff += poff;
if (pskb_may_pull(skb, nhoff + 4)) {
ports.v32 = * (__force u32 *) (skb->data + nhoff);
if (ports.v16[1] < ports.v16[0])