From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zytor.com (terminus.zytor.com [198.137.202.136]) (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 9840830B533 for ; Mon, 13 Oct 2025 20:36:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.136 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760387798; cv=none; b=cyE1aPoauQ6mGxDdK7gSo+ndrvFqHFTJz+i0bXFmVgxtN2lv49f/CbKGwOIzxKuD+kL3EX5OFjK3MxfhCgzYClJCUdNIdxEDD2mDEnlntBcMo9o11F+UxTF8ALhW7PZbtaxWO+yi6DI1HXpMOR5Gv00ZNZYLdUoK5xf/x7UbbsE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760387798; c=relaxed/simple; bh=eb3Foq3QZmpsceuPRc0b3p6vWehv1JyVQsnodFCWpio=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Nie3o5SRbpXFLjHTCCio/6GyusyAfKJpKKr1RJGkHC759QSHVlbQeLsD7vFRl8hDFI34dYdk/Se4pg97Sdgvyury45zyyDUpEXqJd+sMtv30twTJUOGzfcE4GwtGkwkklup3pBEmarWaNuQQQyJNVIxCGlyO+UGBZ/49nNqHmBI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zytor.com; spf=pass smtp.mailfrom=zytor.com; dkim=fail (2048-bit key) header.d=zytor.com header.i=@zytor.com header.b=dFswlP+D reason="signature verification failed"; arc=none smtp.client-ip=198.137.202.136 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zytor.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zytor.com Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=zytor.com header.i=@zytor.com header.b="dFswlP+D" Received: from [IPV6:2601:646:8081:9484:201e:bc0f:a7c6:ca8d] ([IPv6:2601:646:8081:9484:201e:bc0f:a7c6:ca8d]) (authenticated bits=0) by mail.zytor.com (8.18.1/8.17.1) with ESMTPSA id 59DKaU9l1461960 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NO); Mon, 13 Oct 2025 13:36:31 -0700 DKIM-Filter: OpenDKIM Filter v2.11.0 mail.zytor.com 59DKaU9l1461960 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zytor.com; s=2025092201; t=1760387791; bh=Tc7fJxWmls+Sa7wgiLm5oLozNz089Qh1RdWjVp/iBwk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=dFswlP+DPcTmIk7/IGqnO8wfjxDjxDx/DExh1Bc2T/k8s9As1rfacRtPtkWjkoWyT uzpbmqYgBeJGsI68/sHwg3iFdzou4jog3F0A4z9nv4HW0ZHqLtCugEqxZN2a5kc84n dCdJDlnCKWYVNAMJ7GBCqxQP1qg7zQDmIcgl3XTLYNoeAOBzZrutvb7PLYnqHmZoZP ElnJQS/l0vR88Q5y3JJDKql2BbRitLbosJajGBs3Gl4dkm7T4w1BIYzVO/7TFyBt2r T3H1UhxrYe/D3iP0/M5bMEyORk7Z16kqxG5GYzRPtKm0f2RXVJm0TypKE1A7pqsxMe 25P+VsIJwhnsg== Message-ID: Date: Mon, 13 Oct 2025 13:36:25 -0700 Precedence: bulk X-Mailing-List: ksummit@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Replacing Link trailers To: Doug Anderson , Linus Torvalds Cc: "Theodore Ts'o" , Steven Rostedt , James Bottomley , "ksummit@lists.linux.dev" References: <20251013133913.015f253b@gandalf.local.home> <20251013175031.GJ354523@mit.edu> <7EE2713D-7612-4EAC-9E4E-225A92FEC9D3@zytor.com> Content-Language: en-US, sv-SE From: "H. Peter Anvin" In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 2025-10-13 13:34, Doug Anderson wrote: > > OK, I found Sasha's RFC [1]. > > The first thing I note is that "b4 dig" takes a Message-Id as an > argument. So now I'm confused. I must be misunderstanding the problem > we're trying to solve with the "Link:" tag?! > > From how I've used it, the "Link" tag allows you to start with a > commit hash in Linux and then go from there to a mailing list post > (and/or Message-Id). ...and then it was suggested that we don't need a > "Link" tag (or anything containing "Message-Id") because "b4 dig" > solves the problem. ...but then "b4 dig" needs a Message-Id to work? > Eh? > So "b4 dig" needs to be able to decode the Link encoding schema (which is pretty trivial: the final path element of the URL should be a URL-escaped message-ID.) -hpa