Commit e2e21a97 authored by Anshuman Khandual's avatar Anshuman Khandual Committed by Catalin Marinas
Browse files

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: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent fc1abd40

arch/arm64/mm/pgd.c

+1 −1
Original line number Diff line number Diff line
@@ -56,7 +56,7 @@ void __init pgtable_cache_init(void) 
	 * With 52-bit physical addresses, the architecture requires the

	 * 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



	/*