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rps: Some minor cleanup in get_rps_cpus
Use some variables for clarity and extensibility. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -2528,15 +2528,17 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
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const struct ipv6hdr *ip6;
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const struct iphdr *ip;
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u8 ip_proto;
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u32 addr1, addr2, ihl;
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u32 addr1, addr2;
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u16 proto;
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union {
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u32 v32;
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u16 v16[2];
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} ports;
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nhoff = skb_network_offset(skb);
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proto = skb->protocol;
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switch (skb->protocol) {
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switch (proto) {
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case __constant_htons(ETH_P_IP):
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if (!pskb_may_pull(skb, sizeof(*ip) + nhoff))
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goto done;
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@ -2548,7 +2550,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
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ip_proto = ip->protocol;
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addr1 = (__force u32) ip->saddr;
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addr2 = (__force u32) ip->daddr;
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ihl = ip->ihl;
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nhoff += ip->ihl * 4;
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break;
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case __constant_htons(ETH_P_IPV6):
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if (!pskb_may_pull(skb, sizeof(*ip6) + nhoff))
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@ -2558,7 +2560,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
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ip_proto = ip6->nexthdr;
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addr1 = (__force u32) ip6->saddr.s6_addr32[3];
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addr2 = (__force u32) ip6->daddr.s6_addr32[3];
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ihl = (40 >> 2);
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nhoff += 40;
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break;
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default:
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goto done;
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@ -2567,7 +2569,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
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ports.v32 = 0;
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poff = proto_ports_offset(ip_proto);
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if (poff >= 0) {
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nhoff += ihl * 4 + poff;
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nhoff += poff;
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if (pskb_may_pull(skb, nhoff + 4)) {
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ports.v32 = * (__force u32 *) (skb->data + nhoff);
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if (ports.v16[1] < ports.v16[0])
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