git.openwrt.org Git - openwrt/staging/xback.git/blob

   1 From f40a455d01f80c6638be382d75cb1c4e7748d8af Mon Sep 17 00:00:00 2001
   2 From: Simon Horman <horms@kernel.org>
   3 Date: Tue, 13 Aug 2024 14:33:47 +0100
   4 Subject: [PATCH] ipv6: Add ipv6_addr_{cpu_to_be32,be32_to_cpu} helpers
   5
   6 Add helpers to convert an ipv6 addr, expressed as an array
   7 of words, from CPU to big-endian byte order, and vice versa.
   8
   9 No functional change intended.
  10 Compile tested only.
  11
  12 Suggested-by: Andrew Lunn <andrew@lunn.ch>
  13 Link: https://lore.kernel.org/netdev/c7684349-535c-45a4-9a74-d47479a50020@lunn.ch/
  14 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
  15 Signed-off-by: Simon Horman <horms@kernel.org>
  16 Link: https://patch.msgid.link/20240813-ipv6_addr-helpers-v2-1-5c974f8cca3e@kernel.org
  17 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  18 ---
  19  include/net/ipv6.h | 12 ++++++++++++
  20  1 file changed, 12 insertions(+)
  21
  22 --- a/include/net/ipv6.h
  23 +++ b/include/net/ipv6.h
  24 @@ -1382,4 +1382,16 @@ static inline void ip6_sock_set_recvpkti
  25         release_sock(sk);
  26  }
  27
  28 +#define IPV6_ADDR_WORDS 4
  29 +
  30 +static inline void ipv6_addr_cpu_to_be32(__be32 *dst, const u32 *src)
  31 +{
  32 +       cpu_to_be32_array(dst, src, IPV6_ADDR_WORDS);
  33 +}
  34 +
  35 +static inline void ipv6_addr_be32_to_cpu(u32 *dst, const __be32 *src)
  36 +{
  37 +       be32_to_cpu_array(dst, src, IPV6_ADDR_WORDS);
  38 +}
  39 +
  40  #endif /* _NET_IPV6_H */