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| author | Li RongQing <roy.qing.li@gmail.com> | 2014-01-15 17:03:30 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-15 15:53:18 -0800 |
| commit | d76ed22b225c02228c643ae336f76e086fdc32f0 (patch) | |
| tree | e420a54624555e185458c2d8a443820ef9a276e5 | |
| parent | e96a41ebde3b66dbb59d3ffa0a38dff6e5ca25a9 (diff) | |
| download | linux-stable-d76ed22b225c02228c643ae336f76e086fdc32f0.tar.gz linux-stable-d76ed22b225c02228c643ae336f76e086fdc32f0.tar.bz2 linux-stable-d76ed22b225c02228c643ae336f76e086fdc32f0.zip | |
ipv6: move IPV6_TCLASS_SHIFT into ipv6.h and define a helper
Two places defined IPV6_TCLASS_SHIFT, so we should move it into ipv6.h,
and use this macro as possible. And define ip6_tclass helper to return
tclass
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/ipv6.h | 5 | ||||
| -rw-r--r-- | net/ipv6/fib6_rules.c | 2 | ||||
| -rw-r--r-- | net/ipv6/ip6_gre.c | 2 | ||||
| -rw-r--r-- | net/ipv6/ip6_tunnel.c | 2 | ||||
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 3 |
5 files changed, 8 insertions, 6 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 12079c65ea3e..6d80f51897a5 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -239,6 +239,7 @@ struct ip6_flowlabel { #define IPV6_FLOWINFO_MASK cpu_to_be32(0x0FFFFFFF) #define IPV6_FLOWLABEL_MASK cpu_to_be32(0x000FFFFF) #define IPV6_TCLASS_MASK (IPV6_FLOWINFO_MASK & ~IPV6_FLOWLABEL_MASK) +#define IPV6_TCLASS_SHIFT 20 struct ipv6_fl_socklist { struct ipv6_fl_socklist __rcu *next; @@ -681,6 +682,10 @@ static inline __be32 ip6_flowlabel(const struct ipv6hdr *hdr) return *(__be32 *)hdr & IPV6_FLOWLABEL_MASK; } +static inline u8 ip6_tclass(__be32 flowinfo) +{ + return ntohl(flowinfo & IPV6_TCLASS_MASK) >> IPV6_TCLASS_SHIFT; +} /* * Prototypes exported by ipv6 */ diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index 3fd0a578329e..b4d5e1d97c1b 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -169,7 +169,7 @@ static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags) return 0; } - if (r->tclass && r->tclass != ((ntohl(fl6->flowlabel) >> 20) & 0xff)) + if (r->tclass && r->tclass != ip6_tclass(fl6->flowlabel)) return 0; return 1; diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index e7a440dd5c0d..f3ffb43f59c0 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -61,8 +61,6 @@ static bool log_ecn_error = true; module_param(log_ecn_error, bool, 0644); MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN"); -#define IPV6_TCLASS_SHIFT 20 - #define HASH_SIZE_SHIFT 5 #define HASH_SIZE (1 << HASH_SIZE_SHIFT) diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 1e5e2404f1af..5db8d310f9c0 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -69,8 +69,6 @@ MODULE_ALIAS_NETDEV("ip6tnl0"); #define IP6_TNL_TRACE(x...) do {;} while(0) #endif -#define IPV6_TCLASS_SHIFT 20 - #define HASH_SIZE_SHIFT 5 #define HASH_SIZE (1 << HASH_SIZE_SHIFT) diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index af0ecb94b3b4..2855b00ed49d 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -1019,7 +1019,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, put_cmsg(&msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim); } if (np->rxopt.bits.rxtclass) { - int tclass = ntohl(np->rcv_flowinfo & IPV6_TCLASS_MASK) >> 20; + int tclass = (int)ip6_tclass(np->rcv_flowinfo); + put_cmsg(&msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass); } if (np->rxopt.bits.rxoinfo) { |