From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [216.168.135.169] (helo=starfish.geekisp.com) by linuxtogo.org with esmtp (Exim 4.69) (envelope-from ) id 1KKccg-0006o1-Bh for openembedded-devel@openembedded.org; Sun, 20 Jul 2008 19:23:02 +0200 Received: (qmail 18652 invoked by uid 1003); 20 Jul 2008 17:22:00 -0000 Received: from localhost (HELO localhost.localdomain) (philip@opensdr.com@127.0.0.1) by mail.geekisp.com with SMTP; 20 Jul 2008 17:22:00 -0000 Message-ID: <48837436.7050604@balister.org> Date: Sun, 20 Jul 2008 13:21:58 -0400 From: Philip Balister User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: openembedded-devel@lists.openembedded.org References: <4880715F.80707@atmel.com> <4880E6BF.3070102@atmel.com> In-Reply-To: <4880E6BF.3070102@atmel.com> Subject: Re: How update kernel recipe? X-BeenThere: openembedded-devel@lists.openembedded.org X-Mailman-Version: 2.1.10 Precedence: list Reply-To: openembedded-devel@lists.openembedded.org List-Id: Using the OpenEmbedded metadata to build Distributions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jul 2008 17:23:02 -0000 X-Groupsio-MsgNum: 5559 Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms050000080501010006090606" --------------ms050000080501010006090606 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Ulf Samuelsson wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Koen Kooi skrev: > | Ulf Samuelsson wrote: > | I have built "gpe-image" for AT91SAM9263EK > | after fixing libsvg-cairo manually due to the LT_VERSION problem. > | > | I would like to upgrade the kernel for AT91SAM9263EK. > | I created a recipe for linux-2.6.25.10 called > | "packages/linux/linux-atmel_2.6.25.10.bb" (found below) > | > |> Yuck! There is *absolutely* no need to define > |> > linux-we-are-so-cool-we-have-our-company-name-the-kernel-recipe-filename.bb > |> files, you should be perfectly able to reuse the linux_2.6.25 recipe, as > |> avr32 already does. > | > > You do not need to edit (and possibly destroy) > work done and used by others, but I do not have any problem > with using the linux_2.6.25 recipe, except is is 2.6.25 > and not 2.6.25.10. > > The AVR32 should be updated to patch with 2.6.25.10 as well... > > If you have a number of linux_, some with and some > without support for your board, then it is harder to > get an overview which kernels are supported. > > Drawback would be if you lose out on interesting features > added by others by using a proprietary recipe. > > Very few machines seems to use the vanilla linux. > Is there any move to merge current boards into vanilla linux_ ? This is a really good discussion. How to decide when to add a new kernel recipe versus enhancing an existing recipe is really tough. I understand the motivation to create a new recipe, first, it means you are less likely to break another machine, and second others are less likely to break your work. When adding a kernel for a new machine, there may be frequent commits and PR bumps. My personal preference is to try and use an existing kernel recipe wherever possible. And certainly build on the linux.inc file that helps provide common structure to recipes. But I like kernel recipes that support the communities that grow up around boards and families of boards. For example, we can support OMAP2 and OMAP3 boards from the linux-omap2 recipe. Most of these boards are still building from the git kernel repo that supports all members of the OMAP family. (Yes, we should look at moving the omap1 builds to the omap2 recipe and renaming it linux-omap). As with many things, there is more than one good way to solve the problem. 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