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Tue, 13 Oct 2026 08:57:17 +0300 (IDT) To: Arnout Vandecappelle Cc: Titouan Christophe , Titouan Christophe via buildroot , ju.o@free.fr, thomas.petazzoni@bootlin.com, git@jdknight.me, thomas.perale@mind.be In-Reply-To: <505a5107-4e45-4b46-92c0-e4cd10025e9a@rnout.be> (Arnout Vandecappelle's message of "Mon, 12 Oct 2026 12:40:12 +0200") References: <20261010201508.963412-1-titouan.christophe@mind.be> <20261010201508.963412-4-titouan.christophe@mind.be> <877bjo425e.fsf@tarshish> <58a1eb0e-91e4-4810-a13f-26cc2f1bc625@mind.be> <871p9v4fpl.fsf@tarshish> <812cdd41-61b0-4f4a-9258-72ad40699895@mind.be> <505a5107-4e45-4b46-92c0-e4cd10025e9a@rnout.be> User-Agent: mu4e 1.14.2; emacs 30.2 Date: Tue, 13 Oct 2026 08:58:28 +0300 Message-ID: <8733ua2lbv.fsf@tarshish> MIME-Version: 1.0 Subject: Re: [Buildroot] [PATCH 3/3] configs: update defconfigs with custom versions to BR2_LINUX_KERNEL_LATEST_X_Y X-BeenThere: buildroot@buildroot.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Discussion and development of buildroot List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Baruch Siach via buildroot Reply-To: Baruch Siach Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: buildroot-bounces@buildroot.org Sender: "buildroot" Hi Arnout, On Mon, Oct 12 2026, Arnout Vandecappelle wrote: > On 12/10/2026 10:35, Titouan Christophe via buildroot wrote: >>>> This is a tradeoff, really. >>>> On one hand (A), there is the risk of breaking the functionality of a board by >>>> bumping from one patch version to another. >>>> On the other (B), any new Linux patch version brings a handful of security >>>> fixes, and this happens on a weekly basis. >>> The basic question is what are these deconfigs meant to achieve? My >>> understanding is that defconfigs demonstrate hardware working with a Buildroot >>> generated image. For many users this is the first Buildroot step. Hardware >>> bring-up is non trivial, and defconfigs preserve a known working state for a >>> given target system. defconfig is only an enabler for new users. >> Indeed, this discussion should address the intended role of in-tree >> defconfigs. >> My personal opinion on this role: >> - They provide (as you say) a first entry into Buildroot for many users. >> - However, I believe they should build a somewhat up-to-date system, and >> demonstrate ways for users to keep their boards up to date. > > Another way to achieve that is to add a HOWTO to the docs that explains how > to use a defconfig. Something like: > > 1. Find the right defconfig. > 2. make foo_defconfig; make; deploy > 3. It boots? Joy! Now prepare for modification. > make BR2_DEFCONFIG= savedefconfig > 4. Switch from the custom kernel to the corresponding LTS branch and test. > 5. Switch to the latest kernel and test. > 6. If it works, fixate that and contribute the change. For the record, I like this direction. Especially if steps (4) and (5) become as easy as possible for new users. Thanks, baruch -- ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il - _______________________________________________ buildroot mailing list buildroot@buildroot.org https://lists.buildroot.org/mailman/listinfo/buildroot