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([2a01:e0a:b41:c160:6a1d:efff:fe52:1959]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4790b0cc1d6sm154441115e9.12.2025.11.28.08.28.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Nov 2025 08:28:41 -0800 (PST) Message-ID: <56a0ec5c-da92-4f92-9697-71127866049b@6wind.com> Date: Fri, 28 Nov 2025 17:28:41 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Reply-To: nicolas.dichtel@6wind.com Subject: Re: [PATCH v2] net/ipv6: allow device-only routes via the multipath API To: azey Cc: Jakub Kicinski , David Ahern , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , netdev , linux-kernel References: <3k3facg5fiajqlpntjqf76cfc6vlijytmhblau2f2rdstiez2o@um2qmvus4a6b> <20251124190044.22959874@kernel.org> <19ac14b0748.af1e2f2513010.3648864297965639099@azey.net> <85a27a0d-de08-413d-af07-0eb3a3732602@6wind.com> <19ac5a2ee05.c5da832c80393.3479213523717146821@azey.net> <1d44e105-77bd-42e7-81f5-6e235fd12554@6wind.com> <19aca794ddd.105d1f97f173752.5540866508598154532@azey.net> <19acb23fcf6.126ff53f1199305.3435243475109739554@azey.net> <19acb2c1318.fb2ad2c5200221.6191734529593487240@azey.net> From: Nicolas Dichtel Content-Language: en-US Organization: 6WIND In-Reply-To: <19acb2c1318.fb2ad2c5200221.6191734529593487240@azey.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Le 28/11/2025 à 16:54, azey a écrit : >> On 2025-11-28 09:38:07 +0100 Nicolas Dichtel wrote: >>> With IPv6, unlike IPv4, the ECMP next hops can be added one by one. Your commit >>> doesn't allow this: > > Hold on, I think I understand what you actually meant by this, sorry. > I got too focused on regressions from the discussion in v1, I'll make > a v3 of the patch that allows dev-only routes to be added via append. Yes, that is what I pointed out. Please, add some self-tests to show that there is no regression. You probably have to test different combinations of NLM_F_* flags. See: https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/tree/ip/iproute.c#n2418