[PATCH v2 0/2] of: reserved_mem: use dynamically allocated reserved_mem array

[Marek Szyprowski]

Mike Rapoport suggested [1] how to properly use dynamically allocated
arrays during early boot.

Use this approach for reserved_mem array during early scan of the
reserved regions. Having all the reserved regions in a single array
removes the need of the two pass initialization introduced by commit
8a6e02d0c00e ("of: reserved_mem: Restructure how the reserved memory
regions are processed"), so implement it to make the code simpler,
easier to understand and ready for adding proper error checking.

Tested on ARM32, ARM64 and RiscV64 based boards.

[1] https://lore.kernel.org/all/asc6brs_g0ky0wOM@xxxxxxxxxx/


Best regards
Marek Szyprowski, PhD
Samsung R&D Institute Poland


Changelog:

v2:
- removed superfluous ifdefs

v1: https://lore.kernel.org/all/20261008094125.3197971-1-m.szyprowski@xxxxxxxxxxx/
- initial version


Patch summary:

Marek Szyprowski (2):
  of: reserved_mem: group allocation helpers together
  of: reserved_mem: allocate and map the reserved_mem array early

 drivers/of/fdt.c             |   3 -
 drivers/of/of_private.h      |   2 -
 drivers/of/of_reserved_mem.c | 455 +++++++++++++++--------------------
 3 files changed, 195 insertions(+), 265 deletions(-)

-- 
2.43.0