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arm64: mm: Remove bogus stop condition from map_mem() loop

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The memblock API guarantees that start is not greater than or equal to
end, so there is no need to test it. And if it were, it is doubtful that
breaking out of the loop would be a reasonable course of action here
(rather than attempting to map the remaining regions)

So let's drop this check.

Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Ard Biesheuvel 2026-05-29 17:01:52 +02:00 committed by Will Deacon
parent 13d0fdc090
commit 36ca7f4be8
1 changed files with 0 additions and 2 deletions
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arch/arm64/mm/mmu.c
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@ -1173,8 +1173,6 @@ static void __init map_mem(pgd_t *pgdp)
/* map all the memory banks */ /* map all the memory banks */
for_each_mem_range(i, &start, &end) { for_each_mem_range(i, &start, &end) {
if (start >= end)
break;
/* /*
* The linear map must allow allocation tags reading/writing * The linear map must allow allocation tags reading/writing
* if MTE is present. Otherwise, it has the same attributes as * if MTE is present. Otherwise, it has the same attributes as