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arm64/mm: Ensure PGD_SIZE is aligned to 64 bytes when PA_BITS = 52 

Although the comment clearly states about PGD table's alignment requirement
(when PA_BITS = 52) but the subsequent BUILD_BUG_ON() tests size comparison
to 64 bytes instead. So change it as an actual alignment test.

Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Anshuman Khandual 2025-10-31 07:12:55 +00:00 committed by Catalin Marinas
parent fc1abd4093
commit e2e21a9757
1 changed files with 1 additions and 1 deletions
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arch/arm64/mm/pgd.c
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@ -56,7 +56,7 @@ void __init pgtable_cache_init(void)
* With 52-bit physical addresses, the architecture requires the * With 52-bit physical addresses, the architecture requires the
* top-level table to be aligned to at least 64 bytes. * top-level table to be aligned to at least 64 bytes.
*/ */
BUILD_BUG_ON(PGD_SIZE < 64); BUILD_BUG_ON(!IS_ALIGNED(PGD_SIZE, 64));
#endif #endif
/* /*