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From: Arnd Bergmann <arnd@kernel.org>
To: linux-arm-kernel@lists.infradead.org
Cc: Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 02/13] ARM: add CONFIG_UNUSED_BOARD_FILES
Date: Thu, 21 Jul 2022 16:17:11 +0200	[thread overview]
Message-ID: <20220721141722.2414719-3-arnd@kernel.org> (raw)
In-Reply-To: <20220721141722.2414719-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

Based on the recent mailing list discussion, most board file support
has no remaining users and can be scheduled for removal early next
year.

If a board is still found to have users, it will remain for this round
but users are encouraged to migrate to devicetree based booting where
possible.

The timing is meant to ensure the next longterm supported kernel
still contains all the board files, giving another year of support
for potential users that did not speak up and would otherwise be
stuck on the v5.15.y longterm kernel from 2021.

Link: https://lore.kernel.org/all/CAK8P3a0Z9vGEQbVRBo84bSyPFM-LF+hs5w8ZA51g2Z+NsdtDQA@mail.gmail.com/
Link: https://docs.google.com/spreadsheets/d/1PL4dUUSieeXHzZhAn_Rnix32OTiCfN33sCQejpvI6ng/edit#gid=0
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/Kconfig | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4349525cd1e1..6307a66ff6fe 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1548,8 +1548,20 @@ config ATAGS
 	  This is the traditional way of passing data to the kernel at boot
 	  time. If you are solely relying on the flattened device tree (or
 	  the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
-	  to remove ATAGS support from your kernel binary.  If unsure,
-	  leave this to y.
+	  to remove ATAGS support from your kernel binary.
+
+config UNUSED_BOARD_FILES
+	bool "Board support for machines without known users"
+	depends on ATAGS
+	help
+	  Most ATAGS based board files are completely unused and are
+	  scheduled for removal in early 2023, and left out of kernels
+	  by default now.  If you are using a board file that is marked
+	  as unused, turn on this option to build support into the kernel.
+
+	  To keep support for your individual board from being removed,
+	  send a reply to the email discussion at
+	  https://lore.kernel.org/all/CAK8P3a0Z9vGEQbVRBo84bSyPFM-LF+hs5w8ZA51g2Z+NsdtDQA@mail.gmail.com/
 
 config DEPRECATED_PARAM_STRUCT
 	bool "Provide old way to pass kernel parameters"
-- 
2.29.2


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  parent reply	other threads:[~2022-07-21 14:19 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-21 14:17 [PATCH 00/13] ARM: mark most boards as unused Arnd Bergmann
2022-07-21 14:17 ` [PATCH 01/13] ARM: add ATAGS dependencies to non-DT platforms Arnd Bergmann
2022-07-21 14:17 ` Arnd Bergmann [this message]
2022-07-21 14:17 ` [PATCH 03/13] ARM: pxa: add Kconfig dependencies for ATAGS based boards Arnd Bergmann
2022-07-21 14:28   ` Marc Zyngier
2022-07-21 14:17 ` [PATCH 04/13] ARM: orion: add ATAGS dependencies Arnd Bergmann
2022-07-21 14:17 ` [PATCH 05/13] ARM: davinci: mark all ATAGS board files as unused Arnd Bergmann
2022-07-28 11:54   ` Bartosz Golaszewski
2022-07-21 14:17 ` [PATCH 06/13] ARM: ep93xx: mark most " Arnd Bergmann
2022-07-21 14:30   ` Alexander Sverdlin
2022-07-21 15:51     ` Hartley Sweeten
2022-07-21 16:01       ` Alexander Sverdlin
2022-07-21 16:09         ` Hartley Sweeten
2022-07-21 19:10           ` Arnd Bergmann
2022-07-22  8:04   ` Lukasz Majewski
2022-07-22  9:14     ` Arnd Bergmann
2022-07-22 11:04       ` Lukasz Majewski
2022-07-22 12:16         ` Arnd Bergmann
2022-07-25  8:08           ` Nikita Shubin
2022-07-25  8:16             ` Arnd Bergmann
2022-07-21 14:17 ` [PATCH 07/13] ARM: mmp: mark all board files for removal Arnd Bergmann
2022-07-21 14:17 ` [PATCH 08/13] ARM: footbridge: mark cats board " Arnd Bergmann
2022-07-21 14:17 ` [PATCH 09/13] ARM: sa1100: mark most boards as unused Arnd Bergmann
2022-07-22 11:29   ` Linus Walleij
2022-07-21 14:17 ` [PATCH 10/13] ARM: omap1: add Kconfig dependencies for unused boards Arnd Bergmann
2022-07-21 15:03   ` Aaro Koskinen
2022-07-21 14:17 ` [PATCH 11/13] ARM: s3c: mark most board files as unused Arnd Bergmann
2022-07-26  9:38   ` Krzysztof Kozlowski
2022-07-21 14:17 ` [PATCH 12/13] ARM: iop32x: mark " Arnd Bergmann
2022-07-21 23:59   ` Dan Williams
2022-07-21 14:17 ` [PATCH 13/13] ARM: cns3xxx: add CONFIG_UNUSED_BOARD_FILES dependency Arnd Bergmann

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