[PATCH v4 0/6] arm64: Get rid of __early_init_dt_declare_initrd()

[Florian Fainelli]

Hi all,

Changes in v4:

- dropped initrd_below_start_ok assignment in ARM64, not necessary at
  all (Ard)
- replace #ifdef CONFIG_BLK_DEV_INITRD with if
  (IS_ENABLED(CONFIG_BLK_DEV_INITRD) for consistency with other parts
  of arm64_memblock_init() (Rob)

Changes in v3:

- use C conditionals in drivers/of/fdt.c
- added check on phys_initrd_size in arch/arm64/mm/init.c to determine
  whether initrd_start must be populated
- fixed a build warning with ARC that was just missing an (unsigned
  long) cast

Changes in v2:

- get rid of ARCH_HAS_PHYS_INITRD and instead define
  phys_initrd_start/phys_initrd_size in init/do_mounts_initrd.c

- make __early_init_dt_declare_initrd() account for ARM64 specific
  behavior with __va() when having CONFIG_DEBUG_VM enabled

- consolidate early_initrd() command line parsing into
  init/do_mounts_initrd.c

Because phys_initrd_start/phys_initrd_size are now compiled in
ini/do_mounts_initrd.c which is only built with CONFIG_BLK_DEV_INITRD=y,
we need to be a bit careful about the uses throughout architecture
specific code.

Previous discussions/submissions list here:

v3:
https://www.spinics.net/lists/arm-kernel/msg683566.html
v2:
https://lkml.org/lkml/2018/10/25/4

Florian Fainelli (6):
  nds32: Remove phys_initrd_start and phys_initrd_size
  arch: Make phys_initrd_start and phys_initrd_size global variables
  of/fdt: Populate phys_initrd_start/phys_initrd_size from FDT
  arm64: Utilize phys_initrd_start/phys_initrd_size
  of/fdt: Remove custom __early_init_dt_declare_initrd() implementation
  arch: Move initrd= parsing into do_mounts_initrd.c

 arch/arc/mm/init.c              | 25 +++++-------------------
 arch/arm/mm/init.c              | 28 ++-------------------------
 arch/arm64/include/asm/memory.h |  8 --------
 arch/arm64/mm/init.c            | 34 ++++++---------------------------
 arch/nds32/mm/init.c            |  2 --
 arch/unicore32/mm/init.c        | 24 +++++------------------
 drivers/of/fdt.c                | 17 ++++++++++++-----
 include/linux/initrd.h          |  3 +++
 init/do_mounts_initrd.c         | 20 +++++++++++++++++++
 9 files changed, 53 insertions(+), 108 deletions(-)

-- 
2.17.1