arm64: mm: fix incorrect assignment of 'max_mapnr'

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Although we don't actually make use of the 'max_mapnr' global variable,
we do set it to a junk value for !CONFIG_FLATMEM configurations that
leave mem_map uninitialised.

To avoid somebody tripping over this in future, set 'max_mapnr' using
max_pfn, which is calculated directly from the memblock information.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Muchun Song <smuchun@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Muchun Song 2019-03-30 21:13:46 +08:00 • committed by Will Deacon

parent 79a3aaa7b8

commit 344bf332ce

1 changed files with 1 additions and 1 deletions

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arch/arm64/mm/init.c

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