From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CBD853EC69C for ; Tue, 6 Oct 2026 17:36:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791308166; cv=none; b=Um+t+ygzTfDuzswxsek4HJQy7PDT38fJnyzhz3XhrYD01BdNnegqK1V5Afm4jQxI4yFy8aNP+Lo08lTu4U11nWegfia/bcFhnA6YUzjfsF6jjBmlRvACb6lfH6mYSZ8XWavaABs6mJDRwI9/KfytWUl45caPnAT2Zjixt+fX54A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791308166; c=relaxed/simple; bh=LBw5PETk463a742txJjJsHIHNQlsi9K5WLFpLScT5D8=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=qqgchN/JCNLeh4F3H9vVp7ESijhNnwrx33Arz7z8Rov4pCeua7O/XXWmmYsbjdOxE7OSmk/3nDtiaFfNWYMWgSVxNJwtk8MS4oEXU9Zxo4NM5buF5Qby40GFrMMqdj6DndJfGkORf1s/Gaq4Zc9LkkeRLY9fIeQal//nYxEJtA8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=i2WzUv1+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="i2WzUv1+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D51271F0089B; Tue, 6 Oct 2026 17:36:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791308165; bh=WWAFxSQ7IgsSq9r8kF18CGIR4KRbLKeMGtHvSt0ontk=; h=Date:Subject:To:References:From:In-Reply-To; b=i2WzUv1+j3HhO+em2YuNSVS+gJwKGPegfXVgAToVfdH9R3cr1BAFoOCvt/XDx18HK DUpqBEL1FDLfhlCqe3Hn/7AwekLBbHkhTbhJUA8cuGlAjQGYiaui1h6UHE6NOAiUEA N4Ddmf1jafr3T88HhyR1H5sMDASgI1weccJNHPR97FnUt3jEQJuJe32TtvjwtnSriv dAO7nS8YAZMRNn6bpxXKBVlBUxF1pKdegtdJRRwk+DBO0GVmI9cSTIqIaD7WunqJtV JjiJ4aIUgS0K68ci26TVYidRyX5xQYmvkbA8oxYVIaMy/MGHNYt97F4rH/152zIJbl URJvuxTn/rEhQ== Message-ID: <21b19217-8aff-4147-b240-dd04260b3450@kernel.org> Date: Tue, 6 Oct 2026 19:36:02 +0200 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta Subject: Re: [PATCH mptcp-net v2 1/2] mptcp: reset msk state on early connect failure Content-Language: fr To: quanyeyang@proton.me, mptcp@lists.linux.dev References: <20260911-mptcp-connect-undo-net-v2-0-54224cea2238@proton.me> <20260911-mptcp-connect-undo-net-v2-1-54224cea2238@proton.me> From: Matthieu Baerts Autocrypt: addr=matttbe@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Quanye, On 11/09/2026 17:42, Quanye Yang via B4 Relay wrote: > From: Quanye Yang > > mptcp_connect() can fall back before the subflow SYN is sent, for > example when the netns is in an MPTCP blackhole, token allocation > fails, or MD5SIG is in use. If the subsequent subflow connect() > fails immediately (EAFNOSUPPORT, ENETUNREACH, ...), > __inet_stream_connect() returns while the socket is still > SS_UNCONNECTED and never calls ->disconnect(). > > The error path only dropped the token and moved the msk back to > TCP_CLOSE. MPTCP_FALLBACK_DONE, allow_subflows and > request_mptcp were left as after early fallback, so a later > connect() on the same fd stayed TCP-only. Thank you for the new version, and for your patience! This patch looks good to me: Reviewed-by: Matthieu Baerts (NGI0) Cheers, Matt -- Sponsored by the NGI0 Core fund.