[PATCH net-next v2 1/3] ipv6: Add ipv6_addr_{cpu_to_be32,be32_to_cpu} helpers

[Simon Horman]

Add helpers to convert an ipv6 addr, expressed as an array
of words, from CPU to big-endian byte order, and vice versa.

No functional change intended.
Compile tested only.

Suggested-by: Andrew Lunn <andrew at lunn.ch>
Link: https://lore.kernel.org/netdev/c7684349-535c-45a4-9a74-d47479a50020@lunn.ch/
Reviewed-by: Andrew Lunn <andrew at lunn.ch>
Signed-off-by: Simon Horman <horms at kernel.org>
---
 include/net/ipv6.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 88a8e554f7a1..e7113855a10f 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -1365,4 +1365,16 @@ static inline void ip6_sock_set_recvpktinfo(struct sock *sk)
 	release_sock(sk);
 }
 
+#define IPV6_ADDR_WORDS 4
+
+static inline void ipv6_addr_cpu_to_be32(__be32 *dst, const u32 *src)
+{
+	cpu_to_be32_array(dst, src, IPV6_ADDR_WORDS);
+}
+
+static inline void ipv6_addr_be32_to_cpu(u32 *dst, const __be32 *src)
+{
+	be32_to_cpu_array(dst, src, IPV6_ADDR_WORDS);
+}
+
 #endif /* _NET_IPV6_H */

-- 
2.43.0