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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 /include/net | |
| parent | e96a41ebde3b66dbb59d3ffa0a38dff6e5ca25a9 (diff) | |
| download | linux-d76ed22b225c02228c643ae336f76e086fdc32f0.tar.gz linux-d76ed22b225c02228c643ae336f76e086fdc32f0.tar.bz2 linux-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>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/ipv6.h | 5 |
1 files changed, 5 insertions, 0 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 */ |