[PATCH 0/8] add generic builtin command line

Maksym Kokhan
2018-09-27T16:55:08Z

There were series of patches [1] for 4.3.0-rc3, that allowed
architectures to use a generic builtin command line. I have rebased
these patches on kernel 4.19.0-rc4.

Things, modified in comparison with original patches:
* There was some bug for mips, in the case when CONFIG_CMDLINE_PREPEND
and CONFIG_CMDLINE_APPEND are empty and CMDLINE_OVERRIDE is not set,
command line from bootloader was ignored, so I fixed it, modifying
patch "add generic builtin command line".

* Implemented new patch to resolve conflict with new kernel, which
modify EFI stub code. Unfortunately, I don't have capability to test
this modification on real arm board with EFI.

* Removed new realisation of mips builtin command line, which was
created after 4.3.0-rc3.

* Kernel 4.3.0-rc3 with original patches could not be compiled for
powerpc due to prom_init.c checking by prom_init_check.sh. So I added
strlcat (which is used by cmdline_add_builtin macro) to
prom_init_check.sh whitelist.

Patches have been tested in QEMU for x86, arm (little-endian), arm64
(little-endian), mips (little-endian, 32-bit) and powerpc
(big-endian, 64-bit), everything works perfectly. Also it was tested
on linux-next (next-20180924 tag) for all listed above architectures.

[1] : https://lore.kernel.org/patchwork/patch/604992/

Daniel Walker (7):
add generic builtin command line
drivers: of: ifdef out cmdline section
x86: convert to generic builtin command line
arm: convert to generic builtin command line
arm64: convert to generic builtin command line
mips: convert to generic builtin command line
powerpc: convert to generic builtin command line

Maksym Kokhan (1):
efi: modify EFI stub code for arm/arm64

arch/arm/Kconfig | 38 +-----------------
arch/arm/kernel/atags_parse.c | 14 ++-----
arch/arm/kernel/devtree.c | 2 +
arch/arm64/Kconfig | 17 +-------
arch/arm64/kernel/setup.c | 3 ++
arch/mips/Kconfig | 24 +----------
arch/mips/Kconfig.debug | 47 ----------------------
arch/mips/kernel/setup.c | 41 ++-----------------
arch/powerpc/Kconfig | 23 +----------
arch/powerpc/kernel/prom.c | 4 ++
arch/powerpc/kernel/prom_init.c | 8 ++--
arch/powerpc/kernel/prom_init_check.sh | 2 +-
arch/x86/Kconfig | 44 +--------------------
arch/x86/kernel/setup.c | 19 ++-------
drivers/firmware/efi/libstub/arm-stub.c | 10 ++---
drivers/of/fdt.c | 2 +-
include/linux/cmdline.h | 70 +++++++++++++++++++++++++++++++++
init/Kconfig | 68 ++++++++++++++++++++++++++++++++
18 files changed, 173 insertions(+), 263 deletions(-)
create mode 100644 include/linux/cmdline.h

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