Re: [PATCH v3 00/17] Implement GENERIC_CMDLINE

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Le 26/03/2021 à 16:04, Rob Herring a écrit :
On Fri, Mar 26, 2021 at 7:44 AM Christophe Leroy
<christophe.leroy@xxxxxxxxxx> wrote:

The purpose of this series is to improve and enhance the
handling of kernel boot arguments.

It is first focussed on powerpc but also extends the capability
for other arches.

This is based on suggestion from Daniel Walker <danielwa@xxxxxxxxx>

Main changes in V3:
- Also accept destination equal to source in cmdline_build() by setting a tmp buffer in __initdata. Powerpc provides different source and destination and call __cmdline_build() directly.
- Taken comments received from Will and Rob
- Converted all architectures (Only tested on powerpc)

Christophe Leroy (17):
   cmdline: Add generic function to build command line.
   drivers: of: use cmdline building function
   cmdline: Gives architectures opportunity to use generically defined
     boot cmdline manipulation
   powerpc: Convert to GENERIC_CMDLINE
   arm: Convert to GENERIC_CMDLINE
   arm64: Convert to GENERIC_CMDLINE
   hexagon: Convert to GENERIC_CMDLINE
   microblaze: Convert to GENERIC_CMDLINE
   nios2: Convert to GENERIC_CMDLINE
   openrisc: Convert to GENERIC_CMDLINE
   riscv: Convert to GENERIC_CMDLINE
   sh: Convert to GENERIC_CMDLINE
   sparc: Convert to GENERIC_CMDLINE
   xtensa: Convert to GENERIC_CMDLINE
   x86: Convert to GENERIC_CMDLINE
   mips: Convert to GENERIC_CMDLINE
   cmdline: Remove CONFIG_CMDLINE_EXTEND

  arch/arm/Kconfig                            | 38 +-------------
  arch/arm/kernel/atags_parse.c               | 15 ++----
  arch/arm64/Kconfig                          | 33 +-----------
  arch/arm64/kernel/idreg-override.c          |  9 ++--
  arch/hexagon/Kconfig                        | 11 +---
  arch/hexagon/kernel/setup.c                 | 10 +---
  arch/microblaze/Kconfig                     | 24 +--------
  arch/microblaze/configs/mmu_defconfig       |  2 +-
  arch/microblaze/kernel/head.S               |  4 +-
  arch/mips/Kconfig                           |  1 +
  arch/mips/Kconfig.debug                     | 44 ----------------
  arch/mips/configs/ar7_defconfig             |  1 -
  arch/mips/configs/bcm47xx_defconfig         |  1 -
  arch/mips/configs/bcm63xx_defconfig         |  1 -
  arch/mips/configs/bmips_be_defconfig        |  1 -
  arch/mips/configs/bmips_stb_defconfig       |  1 -
  arch/mips/configs/capcella_defconfig        |  1 -
  arch/mips/configs/ci20_defconfig            |  1 -
  arch/mips/configs/cu1000-neo_defconfig      |  1 -
  arch/mips/configs/cu1830-neo_defconfig      |  1 -
  arch/mips/configs/e55_defconfig             |  1 -
  arch/mips/configs/generic_defconfig         |  1 -
  arch/mips/configs/gpr_defconfig             |  1 -
  arch/mips/configs/loongson3_defconfig       |  1 -
  arch/mips/configs/mpc30x_defconfig          |  1 -
  arch/mips/configs/rt305x_defconfig          |  1 -
  arch/mips/configs/tb0219_defconfig          |  1 -
  arch/mips/configs/tb0226_defconfig          |  1 -
  arch/mips/configs/tb0287_defconfig          |  1 -
  arch/mips/configs/workpad_defconfig         |  1 -
  arch/mips/configs/xway_defconfig            |  1 -
  arch/mips/kernel/relocate.c                 |  4 +-
  arch/mips/kernel/setup.c                    | 40 +--------------
  arch/mips/pic32/pic32mzda/early_console.c   |  2 +-
  arch/mips/pic32/pic32mzda/init.c            |  2 -
  arch/nios2/Kconfig                          | 24 +--------
  arch/nios2/kernel/setup.c                   | 13 ++---
  arch/openrisc/Kconfig                       | 10 +---
  arch/powerpc/Kconfig                        | 37 +------------
  arch/powerpc/kernel/prom_init.c             | 17 +++---
  arch/riscv/Kconfig                          | 44 +---------------
  arch/riscv/kernel/setup.c                   |  5 +-
  arch/sh/Kconfig                             | 30 +----------
  arch/sh/configs/ap325rxa_defconfig          |  2 +-
  arch/sh/configs/dreamcast_defconfig         |  2 +-
  arch/sh/configs/ecovec24-romimage_defconfig |  2 +-
  arch/sh/configs/ecovec24_defconfig          |  2 +-
  arch/sh/configs/edosk7760_defconfig         |  2 +-
  arch/sh/configs/espt_defconfig              |  2 +-
  arch/sh/configs/j2_defconfig                |  2 +-
  arch/sh/configs/kfr2r09-romimage_defconfig  |  2 +-
  arch/sh/configs/kfr2r09_defconfig           |  2 +-
  arch/sh/configs/lboxre2_defconfig           |  2 +-
  arch/sh/configs/microdev_defconfig          |  2 +-
  arch/sh/configs/migor_defconfig             |  2 +-
  arch/sh/configs/polaris_defconfig           |  2 +-
  arch/sh/configs/r7780mp_defconfig           |  2 +-
  arch/sh/configs/r7785rp_defconfig           |  2 +-
  arch/sh/configs/rsk7201_defconfig           |  2 +-
  arch/sh/configs/rsk7203_defconfig           |  2 +-
  arch/sh/configs/rts7751r2d1_defconfig       |  2 +-
  arch/sh/configs/rts7751r2dplus_defconfig    |  2 +-
  arch/sh/configs/sdk7780_defconfig           |  2 +-
  arch/sh/configs/sdk7786_defconfig           |  2 +-
  arch/sh/configs/se7206_defconfig            |  2 +-
  arch/sh/configs/se7343_defconfig            |  2 +-
  arch/sh/configs/se7712_defconfig            |  2 +-
  arch/sh/configs/se7721_defconfig            |  2 +-
  arch/sh/configs/se7724_defconfig            |  2 +-
  arch/sh/configs/se7751_defconfig            |  2 +-
  arch/sh/configs/se7780_defconfig            |  2 +-
  arch/sh/configs/sh03_defconfig              |  2 +-
  arch/sh/configs/sh2007_defconfig            |  2 +-
  arch/sh/configs/sh7757lcr_defconfig         |  2 +-
  arch/sh/configs/sh7763rdp_defconfig         |  2 +-
  arch/sh/configs/shmin_defconfig             |  2 +-
  arch/sh/configs/shx3_defconfig              |  2 +-
  arch/sh/configs/titan_defconfig             |  2 +-
  arch/sh/configs/ul2_defconfig               |  2 +-
  arch/sh/kernel/setup.c                      | 11 +---
  arch/sparc/Kconfig                          | 18 +------
  arch/sparc/prom/bootstr_64.c                |  2 +-
  arch/x86/Kconfig                            | 45 +---------------
  arch/x86/kernel/setup.c                     | 17 +-----
  arch/xtensa/Kconfig                         | 15 +-----
  arch/xtensa/configs/audio_kc705_defconfig   |  1 -
  arch/xtensa/configs/common_defconfig        |  1 -
  arch/xtensa/configs/generic_kc705_defconfig |  1 -
  arch/xtensa/configs/iss_defconfig           |  1 -
  arch/xtensa/configs/nommu_kc705_defconfig   |  1 -
  arch/xtensa/configs/smp_lx200_defconfig     |  1 -
  arch/xtensa/configs/virt_defconfig          |  1 -
  arch/xtensa/configs/xip_kc705_defconfig     |  1 -
  arch/xtensa/kernel/setup.c                  | 10 +---
  drivers/firmware/efi/libstub/x86-stub.c     | 26 +++++-----

You missed efi-stub.c which has CMDLINE_EXTEND.


I think I completely missed EFI.

Reworked in V4.





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