From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f175.google.com (mail-pf1-f175.google.com [209.85.210.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 01E5447FAF9 for ; Wed, 29 Jul 2026 12:08:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.175 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785326897; cv=none; b=f3suQNTNYM6CtgjUxUyhKSAi36Lfe9d2W8YLvYjKZ8NUZiRCzVzs3b+nsMOUXqwJy5a/e+JCnQIzUiJqLcv0V9irxhmk6zq41U3rdWkzUsh3CvmTD+ZAf4N2t91CN+6VQ2nda+BXZGEAmIPTC6ZxlV2jv0eq+x42Dmholo+oUFk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785326897; c=relaxed/simple; bh=Ldrln8LKzLxxG1U61lhESq/BvKrysELVPMi2uGpkCNE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sm2j6pbtIl8SIDkMukvrDs9n5JlrG70QKsBxDiqfFDacmDFURJdGrl/ONA16IcgUsWrUuEyRxq/KwntJgEqe/alsWFVkU0ShgIUVSR6hI/BRVmPvhal3B1b3I+W1l5ftbhFFWevB51hs1li73kQceN76GPdoYP25stiOZbg68gA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ce8C9p3l; arc=none smtp.client-ip=209.85.210.175 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ce8C9p3l" Received: by mail-pf1-f175.google.com with SMTP id d2e1a72fcca58-84e04df8c46so977932b3a.2 for ; Wed, 29 Jul 2026 05:08:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1785326895; x=1785931695; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:from:to:cc:subject:date :message-id:reply-to:content-type; bh=2gu6y3IXkxO6mUr5eTB6klMueKQY1psJ64Dbxcvj7NI=; b=ce8C9p3lO/8lnmqf6oMy5lRGEmDJFLfqPZ/+/bE45fhi4KZgLSGkCHI1uZz4VjQjPq 7lw2axV+8lJtNgSyPTnMAdavyAYowJ7kI1DwkKVRh/Cw2r/go0+AUFu1YTBjEZRxVeJm 3eDzNk7eTs4Pw3dGhuJZKbtELcM3CjUV8RlQeh1SFR/gciAvFSJaJ+QNt6c9qjRD+5rF 4GEW7exdeVwJYhl5QgqB+Ewj/xgUyMp6TCPibQkTgBpkYZhrxoSbGdvfhhvqbhFniaH5 zTaeyxGGbCVrF+T34lb63Uytao4QkGM5ERtCU/5Vdg9z8pCnJ3Iv1dyCa4npt7gn8RIc FDug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785326895; x=1785931695; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=2gu6y3IXkxO6mUr5eTB6klMueKQY1psJ64Dbxcvj7NI=; b=OTjKGkgYX1nsHADfUn3gxQ2j+hw3xZMPKRU/M6gcaTC90kgHo0SUWfRAfOAdtMZxGf uWVFQ79cqwWu7sZgz3CD4FBQKxB+aVzp4SKsQyf2dRJYgJu9Sz7ooe6ZXH0f+EQ+xm4O 6mwrIad2k1bRpuUcc7i45oGg/ZFux70qpjM0cfnTqxGsRNTcWTooSbIEmX5gFLRTvve6 EJ5jXLyGqWi7WNeycek/QSMI7D5vVHEyZr69Tj2eXjRLyhYUbg6zQtUbTdP1pkF9lJi1 tDkdmqTOzO9gS1Dgy/bmQewNhePaYWQsFMVKZaI/nqhnFJRyXXbKHqnmSMexvNHkmdct 4IAg== X-Forwarded-Encrypted: i=1; AHgh+RrbBy3R+Ez7EiGcTcwAtgrAfUnyB8qpqR5oU9kxVu/DYr0SU60WTyRF0XpGd3AwCSo0EYcVZlM=@vger.kernel.org X-Gm-Message-State: AOJu0YzavKZybw6CeDkXWBZ4/1fh7BjmYc2V1dcn3+Z0QCRVkOrDxOGa OSZh04ZMLARdFDthUSiU3RBJeMaOytHgNrOYepBWMmTqTJlJONph8JJo X-Gm-Gg: AR+sD10lvqC21H81DN6xmmKmrwOkJk2GzpJ9N+iCZ98fzYjdaBll7AtBtglwb45qhav 8ar52El670ohoIWYz6sNfRe1Da9DZIThGk7eK60DlMSjB3aQUQR086adgVEHyLSfqG98hyNr2IR JT8+K54RineZNar7T7yHsJ8C/RvuxXlWm24vI84VLKeATTctUvldUWpHLeGdscTK0B3BorZauMV zY1hGbFaVPOaoCij/+k06gRkdt5+z2/+A+4AlOZWA69U1ZLPmmZlpKXRhW2Iloi4z+qBs5r+PCP W07CecrUmOCgJsxSYyAbJpElWJHpFJOtPPEqXDX3QG9hObywjpRjgE0VSBUI5K1PMXWGnTFqtnc P2CoMHE3AC31RrLM5lpiHUa4CGJFmdX3hGQsTNR44eoN6BVtQ/u+fkd5WYP2sw1MO9ii1WOHnv8 v9HDiCNeCHFJ008KZvSA5dQHkipT1W3YohJmV0Uu+h6jxop4ELJAEfmcvhNxVmK8eljCizmYK45 SnDYtVMb4bH8xl5k1TIWhdVgeLdBXfu8QyrSg== X-Received: by 2002:a05:6a00:3e0b:b0:848:2f77:e2d6 with SMTP id d2e1a72fcca58-84e9336cb1dmr6491726b3a.63.1785326895013; Wed, 29 Jul 2026 05:08:15 -0700 (PDT) Received: from m-upc-A520M-HDV.lan ([2400:2410:3f60:500:c705:d3b3:a6d9:8512]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84ea0300ac2sm1263482b3a.35.2026.07.29.05.08.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Jul 2026 05:08:12 -0700 (PDT) Sender: Yuyang Huang From: Yuyang Huang To: Yuyang Huang Cc: "David S. Miller" , Bobby Eshleman , Chris J Arges , David Ahern , David Wei , Dimitri Daskalakis , Donald Hunter , Eric Dumazet , Gal Pressman , Ido Schimmel , Jakub Kicinski , Paolo Abeni , Shuah Khan , Simon Horman , Stanislav Fomichev , Willem de Bruijn , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH net-next v4 05/10] ipv6: expose the route deletion reason in RTM_DELROUTE Date: Wed, 29 Jul 2026 21:07:34 +0900 Message-ID: <20260729120739.47880-6-sigefriedhyy@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260729120739.47880-1-sigefriedhyy@gmail.com> References: <20260729120739.47880-1-sigefriedhyy@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Emit RTA_DEL_REASON from rt6_fill_node() when the deletion reason is not RTA_DEL_REASON_UNSPEC, and reserve room for it in rt6_nlmsg_size(). Every caller still passes RTA_DEL_REASON_UNSPEC. Signed-off-by: Yuyang Huang --- net/ipv6/route.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index b30becf3f56b..b67c8a31ccd6 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -5749,6 +5749,7 @@ static size_t rt6_nlmsg_size(struct fib6_info *f6i) + nla_total_size(sizeof(struct rta_cacheinfo)) + nla_total_size(TCP_CA_NAME_MAX) /* RTAX_CC_ALGO */ + nla_total_size(1) /* RTA_PREF */ + + nla_total_size(4) /* RTA_DEL_REASON */ + nexthop_len; } @@ -5964,6 +5965,10 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb, if (rtnl_put_cacheinfo(skb, dst, 0, expires, dst ? dst->error : 0) < 0) goto nla_put_failure; + if (del_reason != RTA_DEL_REASON_UNSPEC && + nla_put_u32(skb, RTA_DEL_REASON, del_reason)) + goto nla_put_failure; + if (nla_put_u8(skb, RTA_PREF, IPV6_EXTRACT_PREF(rt6_flags))) goto nla_put_failure; -- 2.43.0