arm64: fix STRICT_MM_TYPECHECKS issue in PTE_CONT manipulation

The new page table code that manipulates the PTE_CONT flags does so
in a way that is inconsistent with STRICT_MM_TYPECHECKS. Fix it by
using the correct combination of __pgprot() and pgprot_val().

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index c2fa6b5..2784f05 100644 (file)
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -146,7 +146,7 @@ static void alloc_init_pte(pmd_t *pmd, unsigned long addr,
                if (((addr | next | phys) & ~CONT_MASK) == 0) {
                        /* a block of CONT_PTES  */
                        __populate_init_pte(pte, addr, next, phys,
-                                           prot | __pgprot(PTE_CONT));
+                                           __pgprot(pgprot_val(prot) | PTE_CONT));
                } else {
                        /*
                         * If the range being split is already inside of a