Commit e2c30ee3 authored Dec 09, 2015 by Mark Rutland Committed by Will Deacon Dec 10, 2015

arm64: mm: remove pointless PAGE_MASKing

As pgd_offset{,_k} shift the input address by PGDIR_SHIFT, the sub-page
bits will always be shifted out. There is no need to apply PAGE_MASK
before this.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jeremy Linton <jeremy.linton@arm.com>
Cc: Laura Abbott <labbott@fedoraproject.org>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

parent 49003a8d

arch/arm64/mm/mmu.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -288,7 +288,7 @@ static void __init create_mapping(phys_addr_t phys, unsigned long virt,
		&phys, virt);
		return;
		}
		__create_mapping(&init_mm, pgd_offset_k(virt & PAGE_MASK), phys, virt,
		__create_mapping(&init_mm, pgd_offset_k(virt), phys, virt,
		size, prot, early_alloc);
		}

		@@ -309,7 +309,7 @@ static void create_mapping_late(phys_addr_t phys, unsigned long virt,
		return;
		}

		return __create_mapping(&init_mm, pgd_offset_k(virt & PAGE_MASK),
		return __create_mapping(&init_mm, pgd_offset_k(virt),
		phys, virt, size, prot, late_alloc);
		}