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Message-Id: <20240812-ipv6_addr-helpers-v1-1-aab5d1f35c40@kernel.org>
Date: Mon, 12 Aug 2024 13:11:55 +0100
From: Simon Horman <horms@...nel.org>
To: Andrew Lunn <andrew@...n.ch>
Cc: "David S. Miller" <davem@...emloft.net>,
David Ahern <dsahern@...nel.org>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Felix Fietkau <nbd@....name>, Sean Wang <sean.wang@...iatek.com>,
Mark Lee <Mark-MC.Lee@...iatek.com>, Lorenzo Bianconi <lorenzo@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Yisen Zhuang <yisen.zhuang@...wei.com>,
Salil Mehta <salil.mehta@...wei.com>, Jijie Shao <shaojijie@...wei.com>,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Subject: [PATCH net-next 1/3] ipv6: Add ipv6_addr_{cpu_to_be32,be32_to_cpu}
helpers
Add helper to convert an ipv6 addr, expressed as an array
of words, from cpy to big-endian byte order.
No functional change intended.
Compile tested only.
Suggested-by: Andrew Lunn <andrew@...n.ch>
Link: https://lore.kernel.org/netdev/c7684349-535c-45a4-9a74-d47479a50020@lunn.ch/
Signed-off-by: Simon Horman <horms@...nel.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
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