[PATCH v7 1/9] riscv: build crash_mem ranges from memblock instead of resource tree

[sashiko-bot at kernel.org]

> From: Wandun Chen <chenwandun at lixiang.com>
> 
> Replace walk_system_ram_res() with for_each_mem_range(). A later patch
> introduces MEMBLOCK_NODUMP in memblock, the reserved-memory regions
> marked with MEMBLOCK_NODUMP can be excluded from the vmcore by walking
> memblock.
> 
> for_each_mem_range() iterates memblock.memory, which is freed after
> init unless ARCH_KEEP_MEMBLOCK is selected. riscv needs ARCH_KEEP_MEMBLOCK
> to filter reserved memory from the vmcore, so extend its condition
> (ACPI || KEXEC) with CRASH_DUMP. arm64 and loongarch already select
> ARCH_KEEP_MEMBLOCK unconditionally.
> 
> Signed-off-by: Wandun Chen <chenwandun at lixiang.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.dev/#/patchset/20260922084256.1515554-1-chenwandun1@gmail.com?part=1