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15.20.9723.018; Wed, 18 Mar 2026 07:45:59 +0000 Message-ID: <044f1e0a-80ed-4a16-bdc0-dbd36b777b0f@windriver.com> Date: Wed, 18 Mar 2026 15:45:50 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] lttng-tools: not rrecommend on lttng-modules To: Richard Purdie Cc: openembedded-core@lists.openembedded.org References: <20260302064010.1421315-1-kai.kang@windriver.com> <7029edb75e3d8c609447de0d0f7d9f4e73ec5521.camel@linuxfoundation.org> Content-Language: en-US From: Kai In-Reply-To: <7029edb75e3d8c609447de0d0f7d9f4e73ec5521.camel@linuxfoundation.org> Content-Type: text/plain; charset=UTF-8; format=flowed X-ClientProxiedBy: SGBP274CA0009.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:b0::21) To SN6PR11MB2589.namprd11.prod.outlook.com (2603:10b6:805:53::12) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN6PR11MB2589:EE_|DM3PPFD5EE188BF:EE_ X-MS-Office365-Filtering-Correlation-Id: 19663e0e-4af8-46d3-7c6a-08de84c26590 X-MS-Exchange-SenderADCheck: 1 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bulkscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603180065 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by mx0a-0064b401.pphosted.com id 62I6Wkne3855155 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 18 Mar 2026 07:46:08 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/233368 On 3/18/26 15:37, Richard Purdie wrote: > On Mon, 2026-03-02 at 14:40 +0800, kai.kang@windriver.com wrote: >> From: Kai Kang >> >> As in the lttng manual [1]: >> >> =C2=A0 Most distributions mark the LTTng-modules and LTTng-UST packag= es as >> =C2=A0 optional when installing LTTng-tools (which is always required= ). In >> =C2=A0 the following sections, we always provide the steps to install= all >> =C2=A0 three, but note that: >> >> =C2=A0 * You only need to install LTTng-modules if you intend to use = the >> =C2=A0=C2=A0=C2=A0 Linux kernel LTTng tracer. >> =C2=A0 * You only need to install LTTng-UST if you intend to use the = user >> =C2=A0=C2=A0=C2=A0 space LTTng tracer. >> >> there should be no force dependency between lttng-tools and >> lttng-modules. When set lttng-modules in RRECOMMENDS, it always >> forces >> to build lttng-modules whether it is required or not. >> >> Compare to rpm spec [2] and debian conf [3], there are no any >> dependency >> between them too. >> >> So remove the RRECOMMENDS setting. >> >> [1]: https://lttng.org/docs/v2.14/#doc-installing-lttng >> [2]: >> https://rpmfind.net/linux/RPM/fedora/updates/testing/43/aarch64/Packag= es/l/lttng-tools-2.14.0-4.fc43.aarch64.html >> [3]: https://packages.debian.org/trixie/lttng-tools >> >> Signed-off-by: Kai Kang > The removal of the dependency probably makes sense but we need to add > lttng-modules to packagegroup-core-tools-profile instead. OK. v2 will be sent. Thanks, Kai > > Cheers, > > Richard > --=20 Kai Kang Wind River Linux