[PATCH v3 0/2] Move tool for generating initramfs cpio to scripts/

[Nicolas Schier <nsc@kernel.org>]

initramfs cpio tools had been subject of several recent discussions on
linux-kbuild.  Let's get two minor steps forward by enabling a
top-level target for building gen_init_cpio w/o the need of a valid
kbuild configuration [1] and move the tools for generating the built-in
initramfs from usr/ to scripts/ [2].

Link: https://lore.kernel.org/all/20260220191150.244006-1-safinaskar@gmail.com # [1]
Link: https://lore.kernel.org/all/aSdrCFkUQup3qb-q@derry.ads.avm.de/ # [2]
---
Changes in v3:
  * Update various remaining usr/gen_init* references treewide (Nathan)
  * Link to v2: https://patch.msgid.link/20260720-move-gen_init_cpio-to-scripts-v2-0-26b7e15c7133@kernel.org

Changes in v2:
  * Build gen_init_cpio only if CONFIG_BLK_DEV_INITRD (Thomas)
  * Keep underscore top-level target name (scripts_gen_init_cpio)
    (Thomas)
  * Link to v1: https://patch.msgid.link/20260309-move-gen_init_cpio-to-scripts-v1-0-0c5059b1ec5b@kernel.org

To: Nathan Chancellor <nathan@kernel.org>
To: Nicolas Schier <nsc@kernel.org>
To: Jonathan Corbet <corbet@lwn.net>
To: Shuah Khan <skhan@linuxfoundation.org>
To: Randy Dunlap <rdunlap@infradead.org>
To: Luis Augenstein <luis.augenstein@tngtech.com>
To: Maximilian Huber <maximilian.huber@tngtech.com>
To: Mike Rapoport <rppt@kernel.org>
To: Pasha Tatashin <pasha.tatashin@soleen.com>
To: Pratyush Yadav <pratyush@kernel.org>
To: Alexander Graf <graf@amazon.com>
To: Willy Tarreau <w@1wt.eu>
To: Thomas Weißschuh <linux@weissschuh.net>
Cc: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: kexec@lists.infradead.org
Cc: linux-mm@kvack.org
Cc: linux-kselftest@vger.kernel.org

---
Nicolas Schier (2):
      kbuild: Mark usr_gen_init_cpio as no-dot-config-target
      kbuild: Move gen_init_cpio and gen_initramfs.sh to scripts/

 .../early-userspace/early_userspace_support.rst          | 16 ++++++++--------
 Documentation/filesystems/ramfs-rootfs-initramfs.rst     | 10 +++++-----
 MAINTAINERS                                              |  1 +
 Makefile                                                 |  9 +++++----
 scripts/.gitignore                                       |  1 +
 scripts/Makefile                                         |  3 +++
 scripts/Makefile.package                                 |  2 +-
 {usr => scripts}/gen_init_cpio.c                         |  0
 {usr => scripts}/gen_initramfs.sh                        |  2 +-
 scripts/remove-stale-files                               |  2 ++
 scripts/sbom/tests/cmd_graph/test_savedcmd_parser.py     |  2 +-
 tools/testing/selftests/kho/vmtest.sh                    |  2 +-
 tools/testing/selftests/nolibc/Makefile.nolibc           |  2 +-
 usr/.gitignore                                           |  4 +++-
 usr/Kconfig                                              |  2 +-
 usr/Makefile                                             |  4 +---
 16 files changed, 35 insertions(+), 27 deletions(-)
---
base-commit: 93f51579e7df248780214094418f205253383cc5
change-id: 20260225-move-gen_init_cpio-to-scripts-9e89ef99e51a

Best regards,
--  
Nicolas