net: Introduce ipv4_addr_hash and use it for tcp metrics
Refactors a common line into helper function. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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8f58336d3f
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72afa352d6
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@ -458,6 +458,11 @@ static __inline__ void inet_reset_saddr(struct sock *sk)
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#endif
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static inline unsigned int ipv4_addr_hash(__be32 ip)
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{
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return (__force unsigned int) ip;
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}
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bool ip_call_ra_chain(struct sk_buff *skb);
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/*
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@ -249,7 +249,7 @@ static struct tcp_metrics_block *__tcp_get_metrics_req(struct request_sock *req,
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case AF_INET:
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saddr.addr.a4 = inet_rsk(req)->ir_loc_addr;
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daddr.addr.a4 = inet_rsk(req)->ir_rmt_addr;
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hash = (__force unsigned int) daddr.addr.a4;
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hash = ipv4_addr_hash(inet_rsk(req)->ir_rmt_addr);
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break;
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#if IS_ENABLED(CONFIG_IPV6)
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case AF_INET6:
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@ -289,7 +289,7 @@ static struct tcp_metrics_block *__tcp_get_metrics_tw(struct inet_timewait_sock
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saddr.addr.a4 = tw->tw_rcv_saddr;
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daddr.family = AF_INET;
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daddr.addr.a4 = tw->tw_daddr;
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hash = (__force unsigned int) daddr.addr.a4;
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hash = ipv4_addr_hash(tw->tw_daddr);
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}
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#if IS_ENABLED(CONFIG_IPV6)
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else if (tw->tw_family == AF_INET6) {
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@ -298,7 +298,7 @@ static struct tcp_metrics_block *__tcp_get_metrics_tw(struct inet_timewait_sock
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saddr.addr.a4 = tw->tw_rcv_saddr;
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daddr.family = AF_INET;
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daddr.addr.a4 = tw->tw_daddr;
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hash = (__force unsigned int) daddr.addr.a4;
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hash = ipv4_addr_hash(tw->tw_daddr);
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} else {
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saddr.family = AF_INET6;
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saddr.addr.in6 = tw->tw_v6_rcv_saddr;
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@ -339,7 +339,7 @@ static struct tcp_metrics_block *tcp_get_metrics(struct sock *sk,
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saddr.addr.a4 = inet_sk(sk)->inet_saddr;
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daddr.family = AF_INET;
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daddr.addr.a4 = inet_sk(sk)->inet_daddr;
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hash = (__force unsigned int) daddr.addr.a4;
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hash = ipv4_addr_hash(inet_sk(sk)->inet_daddr);
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}
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#if IS_ENABLED(CONFIG_IPV6)
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else if (sk->sk_family == AF_INET6) {
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@ -348,7 +348,7 @@ static struct tcp_metrics_block *tcp_get_metrics(struct sock *sk,
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saddr.addr.a4 = inet_sk(sk)->inet_saddr;
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daddr.family = AF_INET;
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daddr.addr.a4 = inet_sk(sk)->inet_daddr;
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hash = (__force unsigned int) daddr.addr.a4;
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hash = ipv4_addr_hash(inet_sk(sk)->inet_daddr);
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} else {
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saddr.family = AF_INET6;
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saddr.addr.in6 = sk->sk_v6_rcv_saddr;
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@ -959,7 +959,7 @@ static int __parse_nl_addr(struct genl_info *info, struct inetpeer_addr *addr,
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addr->family = AF_INET;
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addr->addr.a4 = nla_get_in_addr(a);
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if (hash)
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*hash = (__force unsigned int) addr->addr.a4;
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*hash = ipv4_addr_hash(addr->addr.a4);
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return 0;
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}
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a = info->attrs[v6];
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