From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 27CAB3E0745 for ; Wed, 20 May 2026 12:37:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779280664; cv=none; b=iq6iEgwv96kP6BfBGXiQPumGZeWF3swfpCNQcDE1wpEp+hPtjfYPz+W91YmnlCha4aDQ8tbQrf5mrPlGQy83U2395OocEWjloXopjGwI7eyoBp5d2Z+IAiRMiTld01n0u5pcjSld/ZTErv4dS1Ftp1F7Ij/zEBYPXozVZ8UvAzw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779280664; c=relaxed/simple; bh=FSTcUtO0VFEQR31TCoenrYIMfzV6jG+LLFaZPW+ndes=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=LUj6OAlnI2ZIzGftPt9YLk1xTCtpogNqVSpH82KBM9iyxytbgB2N0XZg1159iFLe51Ya2D2H2NDRwEXan6zeh/TAWiIgyBtzhyvMK1OCF2TzC8fB6eE2lXibCdO1J7eRTzq3fqfspvSO8NRXwscJVOqYK3SyloQH8ySdnkDujC8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=casper.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=JX2s/BVx; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=casper.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="JX2s/BVx" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=MIME-Version:Content-Type:References: In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=FSTcUtO0VFEQR31TCoenrYIMfzV6jG+LLFaZPW+ndes=; b=JX2s/BVxkjc2bw+iWXoFcelKnL W/wW4JxIYeCAOFA3qf1vgmjpb+ffSFPyBXmWonhq9iTblNtRbFQKZFRTUsgOOxL1jzMVPfgPhAMZs jmjTcnMix6cUl/w3FM4vQK5i2NhQJqvVLsI318WFxA0LS6pzcL57gJRkQLge4f9GjthqhKJhUvWxY a601cTYWbw4lepNG0hDakDqXcs1IVJdJSJGeWmQF5Rj9HEEtfNVxG53WYUjeR2JKn2Me287Nbkyys EUEKvsXvECsCeKedm6QTjKaMeA2HgX+QMAUnp/5giUe8+rjs1PKUrBarotFBPrioujE0YqU1GgIKm Ytu5pCBg==; Received: from 54-240-197-227.amazon.com ([54.240.197.227] helo=freeip.amazon.com) by casper.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPgB1-000000079L9-0k4p; Wed, 20 May 2026 12:37:31 +0000 Message-ID: <67bcddc33ee4c8b24346873bdb6228ac86c16fd1.camel@infradead.org> Subject: Re: [RFC PATCH v2 2/8] timekeeping: Account for clawback adjustment in ntp_error From: David Woodhouse To: Miroslav Lichvar , John Stultz Cc: Richard Cochran , Wen Gu , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Thomas Gleixner , Stephen Boyd , Anna-Maria Behnsen , Frederic Weisbecker , Shuah Khan , Peter Zijlstra , Thomas =?ISO-8859-1?Q?Wei=DFschuh?= , Arnd Bergmann , Julien Ridoux , Ryan Luu , linux-kernel@vger.kernel.org Date: Wed, 20 May 2026 13:37:29 +0100 In-Reply-To: References: <20260517220326.4625-1-dwmw2@infradead.org> <20260517220326.4625-3-dwmw2@infradead.org> <0cf0c9451c38854b8114786d0c03342d06ebc3d1.camel@infradead.org> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-ucwuQQtkrzT8mUHT3jG8" User-Agent: Evolution 3.52.3-0ubuntu1.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html --=-ucwuQQtkrzT8mUHT3jG8 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2026-05-20 at 12:47 +0200, Miroslav Lichvar wrote: > On Tue, May 19, 2026 at 12:28:06PM -0700, John Stultz wrote: > > On Tue, May 19, 2026 at 3:04=E2=80=AFAM David Woodhouse wrote: > > But yea, it does get subtle and complicated, which is all the more > > reason to make sure we have things well documented. > >=20 > > > > Miroslav's review and input here would also be good. > > >=20 > > > Ack. Thomas had nudged me to add Miroslav to Cc, which > > > get_maintainers.pl had not. > >=20 > > Yeah. Maybe it would be good to get Miroslav added as a reviewer in > > the MAINTAINERS file. > >=20 > > Miroslav: Any objection to that? >=20 > I'm ok with that, but I can't promise to provide any actual reviews. > Loading all that context needed to understand the code is painful. It > would be so nice if it could be simplified by switching to 64-bit > multiplier. I'll put that into a separate patch in my series, in with the bug fixes before it gets to the fun proof-of-concept stuff at the end :) --=-ucwuQQtkrzT8mUHT3jG8 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCD9Aw ggSOMIIDdqADAgECAhAOmiw0ECVD4cWj5DqVrT9PMA0GCSqGSIb3DQEBCwUAMGUxCzAJBgNVBAYT AlVTMRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20xJDAi BgNVBAMTG0RpZ2lDZXJ0IEFzc3VyZWQgSUQgUm9vdCBDQTAeFw0yNDAxMzAwMDAwMDBaFw0zMTEx MDkyMzU5NTlaMEExCzAJBgNVBAYTAkFVMRAwDgYDVQQKEwdWZXJva2V5MSAwHgYDVQQDExdWZXJv a2V5IFNlY3VyZSBFbWFpbCBHMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMjvgLKj jfhCFqxYyRiW8g3cNFAvltDbK5AzcOaR7yVzVGadr4YcCVxjKrEJOgi7WEOH8rUgCNB5cTD8N/Et GfZI+LGqSv0YtNa54T9D1AWJy08ZKkWvfGGIXN9UFAPMJ6OLLH/UUEgFa+7KlrEvMUupDFGnnR06 aDJAwtycb8yXtILj+TvfhLFhafxroXrflspavejQkEiHjNjtHnwbZ+o43g0/yxjwnarGI3kgcak7 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