ipv6: 64bit version of ipv6_addr_loopback().
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -475,8 +475,14 @@ static inline u32 ipv6_addr_hash(const struct in6_addr *a)
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static inline bool ipv6_addr_loopback(const struct in6_addr *a)
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{
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#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
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const unsigned long *ul = (const unsigned long *)a;
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return (ul[0] | (ul[1] ^ cpu_to_be64(1))) == 0UL;
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#else
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return (a->s6_addr32[0] | a->s6_addr32[1] |
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a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0;
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#endif
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}
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static inline bool ipv6_addr_v4mapped(const struct in6_addr *a)
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