From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 81A471632FE for ; Wed, 4 Dec 2024 10:29:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733308172; cv=none; b=RBiWgtIKzHgjg/TAmXdSzPNdvBGBJ7hbpG9E1LeSBvm2x797P7dsMhFLyiDGPfhKzCJAbWyEyzoDx9TP55c0EEZp2iWNT87qR/QGfeZ/yBZOGk5fcffQzGz5P9KG3YwCSdDi1lA9Wps3E+21ph5GG9T2L0txDzNxq5y0Wh5fH8c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733308172; c=relaxed/simple; bh=5RmLLYfxIYfiiXZeAs59BD7aRTdabSYHES1clzll0uU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=CwQnURQqYGaNZ+5KRVojqiIqU/s99mfNzp3GThQ6do687TwehI9x2F8iT5pWO9YX7MT61mIFa54YhTH5eiXinIyQF6Q9XbWLyPYULHPHJc6B9EdOp9WoQtEzXu9PkvNZE4CKLdxxbLT7ngupE2xPRRqFWbiO0U4wspqEK1+nPb0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IrtL7KoF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IrtL7KoF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 338F8C4CED1; Wed, 4 Dec 2024 10:29:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733308171; bh=5RmLLYfxIYfiiXZeAs59BD7aRTdabSYHES1clzll0uU=; h=From:To:Cc:Subject:Date:From; b=IrtL7KoFF1I0VYo7gfuVoBC+Rt4Lffy3fo29tGVmve/yw9Mk428wwypyzHd6F3ias h8NkQKwgA75+ZQkmrjn0mItzskwlI0NLzyceG6Gzm2VTij3coHJXECLu2LgryFjzv8 OSkhYpmD8NaAlAv5Jx/aFV/OJwpGDMJo1aT631BQ0fy6C+on3C2lKkFhNM5hwFeBYk hH/qzi8sVf6FZT6vuNSe+GbMgurk8/IHsImLonqf6JxkHjVGZGLAFfhP+ghTL4LLtF kijtGV9cRxxhn6Rks+mA7q6tjupKZuLEbdLBgDqcb4ray0JDXqkxvoYlAJ0752oS72 1pcWwwvzU44Ug== From: Arnd Bergmann To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Arnd Bergmann , Aaro Koskinen , Andrew Lunn , Ard Biesheuvel , Daniel Mack , Gregory Clement , Haojian Zhuang , "Jeremy J. Peper" , Kristoffer Ericson , Krzysztof Kozlowski , Linus Walleij , Mark Brown , Ralph Siemsen , Robert Jarzmik , Russell King , Sebastian Hesselbarth , Tony Lindgren Subject: [PATCH 00/15] ARM: platform and feature deprecation Date: Wed, 4 Dec 2024 11:28:49 +0100 Message-Id: <20241204102904.1863796-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Arnd Bergmann This is attempt to bring the source code to the state that we discussed this summer[1], regarding a timeline for deprecating and removing features: - DEPRECATED_PARAM_STRUCT and ARCH_S3C64XX were meant to be removed by now, but get an extension - all board files except for OMAP1 and S3C get an tentative end-of-life date in either 2025 or early 2026. - IWMMXT is scheduled for removal in 2026 - ARMv6/ARM1136r0 (not ARMv6K/ARM1136r1/ARM1176) is scheduled for removal in 2026, along with the OMAP24xx and i.MX31 SoCs using it - OABI, OABI-compat and NWFPE are confined to StrongARM based builds and scheduled for removal once StrongARM is gone. Regarding actually removing the code, I would plan for linux-6.15 (June 2025), removing both the board files and any drivers that have either become newly unused or were missed in a previous machine removal series. For the 2026 removals, I would plan on the release after the next LTS kernel, most likely 6.19. The timeline for the three StrongARM platforms is missing feedback from Russell, who is listed as maintainer for two of them and last confirmed using all three roughly five years ago[2]. I put those patches last in the series so they can be dropped if Russell still plans to run kernels after 6.12-LTS on one or more of these. Arnd [1] https://lore.kernel.org/linux-arm-kernel/2831c5a6-cfbf-4fe0-b51c-0396e5b0aeb7@app.fastmail.com/ [2] https://lore.kernel.org/linux-arm-kernel/20210109174357.GB1551@shell.armlinux.org.uk/ Arnd Bergmann (15): ARM: use CONFIG_AEABI by default everywhere ARM: limit OABI support to StrongARM CPUs ARM: rework ARM11 CPU selection logic ARM: deprecate support for ARM1136r0 ARM: turn CONFIG_ATAGS off by default ARM: update DEPRECATED_PARAM_STRUCT removal timeline ARM: s3c64xx: extend deprecation schedule ARM: update FPE_NWFPE help text ARM: mark IWMMXT as deprecated ARM: deprecate ARCH_DOVE ARM: PXA: deprecate remaining board file support ARM: orion5x: mark all board files as deprecated ARM: mark mach-sa1100 as deprecated ARM: mark RiscPC as deprecated ARM: mark footbridge as deprecated arch/arm/Kconfig | 72 +++++++++++++------------ arch/arm/Kconfig.platforms | 2 +- arch/arm/configs/am200epdkit_defconfig | 3 +- arch/arm/configs/aspeed_g4_defconfig | 2 - arch/arm/configs/aspeed_g5_defconfig | 1 - arch/arm/configs/assabet_defconfig | 3 ++ arch/arm/configs/at91_dt_defconfig | 2 - arch/arm/configs/axm55xx_defconfig | 2 - arch/arm/configs/bcm2835_defconfig | 1 - arch/arm/configs/clps711x_defconfig | 1 - arch/arm/configs/collie_defconfig | 2 +- arch/arm/configs/davinci_all_defconfig | 1 - arch/arm/configs/dove_defconfig | 2 +- arch/arm/configs/ep93xx_defconfig | 1 - arch/arm/configs/footbridge_defconfig | 2 + arch/arm/configs/gemini_defconfig | 1 - arch/arm/configs/h3600_defconfig | 3 +- arch/arm/configs/hisi_defconfig | 1 - arch/arm/configs/imx_v4_v5_defconfig | 1 - arch/arm/configs/integrator_defconfig | 2 - arch/arm/configs/ixp4xx_defconfig | 1 - arch/arm/configs/jornada720_defconfig | 3 +- arch/arm/configs/keystone_defconfig | 1 - arch/arm/configs/lpc32xx_defconfig | 1 - arch/arm/configs/mmp2_defconfig | 1 - arch/arm/configs/moxart_defconfig | 2 - arch/arm/configs/mps2_defconfig | 1 - arch/arm/configs/multi_v4t_defconfig | 2 - arch/arm/configs/multi_v5_defconfig | 10 ---- arch/arm/configs/mv78xx0_defconfig | 3 +- arch/arm/configs/mvebu_v5_defconfig | 11 ---- arch/arm/configs/mxs_defconfig | 1 - arch/arm/configs/neponset_defconfig | 3 ++ arch/arm/configs/netwinder_defconfig | 3 ++ arch/arm/configs/nhk8815_defconfig | 1 - arch/arm/configs/omap1_defconfig | 3 +- arch/arm/configs/orion5x_defconfig | 11 ---- arch/arm/configs/pxa168_defconfig | 2 - arch/arm/configs/pxa3xx_defconfig | 2 - arch/arm/configs/pxa910_defconfig | 2 - arch/arm/configs/pxa_defconfig | 5 -- arch/arm/configs/rpc_defconfig | 3 ++ arch/arm/configs/s3c6400_defconfig | 2 + arch/arm/configs/sama5_defconfig | 1 - arch/arm/configs/sama7_defconfig | 1 - arch/arm/configs/spear13xx_defconfig | 1 - arch/arm/configs/spitz_defconfig | 2 +- arch/arm/configs/stm32_defconfig | 1 - arch/arm/configs/versatile_defconfig | 2 - arch/arm/configs/vt8500_v6_v7_defconfig | 1 - arch/arm/configs/wpcm450_defconfig | 2 - arch/arm/mach-dove/Kconfig | 8 ++- arch/arm/mach-footbridge/Kconfig | 7 ++- arch/arm/mach-imx/Kconfig | 8 ++- arch/arm/mach-omap2/Kconfig | 17 ++++-- arch/arm/mach-orion5x/Kconfig | 47 ++++++++++++---- arch/arm/mach-pxa/Kconfig | 10 +++- arch/arm/mach-rpc/Kconfig | 5 +- arch/arm/mach-s3c/Kconfig.s3c64xx | 15 ++++-- arch/arm/mach-sa1100/Kconfig | 5 +- arch/arm/mach-versatile/Kconfig | 15 +++--- arch/arm/mm/Kconfig | 26 ++++++++- 62 files changed, 194 insertions(+), 159 deletions(-) -- 2.39.5 Cc: Aaro Koskinen Cc: Andrew Lunn Cc: Ard Biesheuvel Cc: Daniel Mack Cc: Gregory Clement Cc: Haojian Zhuang Cc: "Jeremy J. Peper" Cc: Kristoffer Ericson Cc: Krzysztof Kozlowski Cc: Linus Walleij Cc: Mark Brown Cc: Ralph Siemsen Cc: Robert Jarzmik Cc: Russell King Cc: Sebastian Hesselbarth Cc: Tony Lindgren Cc: linux-arm-kernel@lists.infradead.org