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 <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Jeremy Linton <[email protected]>
Cc: Laura Abbott <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Will Deacon <[email protected]>

diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index bb42ac116a255a37c385c3da7d976420e42926b3..c04def90f3e437f32e111e102b22ae224dcbec12 100644 (file)
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -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);
 }