From: Ard Biesheuvel Date: Fri, 29 May 2026 15:01:52 +0000 (+0200) Subject: arm64: mm: Remove bogus stop condition from map_mem() loop X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=36ca7f4be8094d1441fc35e00dd581467badf298;p=thirdparty%2Fkernel%2Flinux.git arm64: mm: Remove bogus stop condition from map_mem() loop 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 Reviewed-by: Kevin Brodsky Signed-off-by: Ard Biesheuvel Signed-off-by: Will Deacon --- diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 4c8959153ac47..96ab9e822bb18 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1173,8 +1173,6 @@ static void __init map_mem(pgd_t *pgdp) /* map all the memory banks */ for_each_mem_range(i, &start, &end) { - if (start >= end) - break; /* * The linear map must allow allocation tags reading/writing * if MTE is present. Otherwise, it has the same attributes as