From patchwork Tue Aug 13 13:33:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 13762168 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 50503C52D7C for ; Tue, 13 Aug 2024 14:45:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=R6EPKwrT4ori3ntgqdkScaZpq6ueIlHv48FI7TH0CXA=; b=bkbg1j3fyU7f+1lXHYhDtjOWwI hp33a4ZXXhKU67rDHniSaI6L6dNiocoaDYhWzdQq65LeW0FDCq+lF1LDDX2QoSPCn/cThTdMx2yIU DyS2leY3yJTxBywjhTRFpD83WwiDCZU4+kOxEuFcURZ7Q13q9NLKWcO4OVM91xF+tNAlRyUex86Wd LvAtz6nv1jTeHegyrSAIUAQYf/kXE7jkmeWCm6C0xCChpvIHYIVpXSZyr9GZEuBd0FTpGg4HU7Zgx AISIQ083cZyApgE/c+0SvadmB3AYmP+pvGsrMkUC+HYAnJqTZJQcJxfVTnmb66rUSKd1kdq3uR/vz 6J2EXEIA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sdsmE-000000044Ck-3dKv; Tue, 13 Aug 2024 14:45:34 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sdrf1-00000003t8h-3b2T; Tue, 13 Aug 2024 13:34:05 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id AEC2CCE139B; Tue, 13 Aug 2024 13:34:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21C13C4AF0B; Tue, 13 Aug 2024 13:33:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723556041; bh=YjUeMGxUokPWbR1FpTGedLaSX1C6UavzEGCHc8VtbR0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Q/+VatEtPTBjkcOq0MBnr6OXIJnKVOTEx3h+Yq7EBHNuSom/YOwF8j+XP/D2B2ov3 XfuKY2e/uxf16cjp4pksVT+3uipxuLeGmF1WC3+/B+171i4ACPwkdI/oR8/HQvslsb HpyTDZW1mNs0yiSp+BBSoUDTQj32Kwejtn6oepGUzH1XfAjXAR6QOsugLADwacQnIO DcVpPfnpngTQ3YzBG4Aovfiu/yJdr4gaZXlnZPlPKMTEd8akxDOtFBU0ap3/H7QY9v FWWgg16rytcSUqiQT8OF4H7WjK0tqxgI1V5+NEUOVdUuAd/jcoMGT+TYBTSoqG3iCg KBnsuFGpYJhSA== From: Simon Horman Date: Tue, 13 Aug 2024 14:33:47 +0100 Subject: [PATCH net-next v2 1/3] ipv6: Add ipv6_addr_{cpu_to_be32,be32_to_cpu} helpers MIME-Version: 1.0 Message-Id: <20240813-ipv6_addr-helpers-v2-1-5c974f8cca3e@kernel.org> References: <20240813-ipv6_addr-helpers-v2-0-5c974f8cca3e@kernel.org> In-Reply-To: <20240813-ipv6_addr-helpers-v2-0-5c974f8cca3e@kernel.org> To: Andrew Lunn Cc: "David S. Miller" , David Ahern , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Felix Fietkau , Sean Wang , Mark Lee , Lorenzo Bianconi , Matthias Brugger , AngeloGioacchino Del Regno , Yisen Zhuang , Salil Mehta , Jijie Shao , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org X-Mailer: b4 0.14.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240813_063404_153326_2DC18224 X-CRM114-Status: UNSURE ( 8.53 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 Link: https://lore.kernel.org/netdev/c7684349-535c-45a4-9a74-d47479a50020@lunn.ch/ Reviewed-by: Andrew Lunn Signed-off-by: Simon Horman --- 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 */