From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Fri, 22 Jul 2016 17:32:24 +0000 (+0200)
Subject: arm64: mm: make create_mapping_late() non-allocating
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=258a1605c78878ada00417de4840c4c427673ffa;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

arm64: mm: make create_mapping_late() non-allocating

The only purpose served by create_mapping_late() is to remap the already
mapped .text and .rodata kernel segments with read-only permissions. Since
we no longer allow block mappings to be split or merged,
create_mapping_late() should not pass an allocation function pointer into
__create_pgd_mapping(). So pass NULL instead.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---

diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index a96a2413fa18..33f36cede02d 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -312,7 +312,7 @@ static void create_mapping_late(phys_addr_t phys, unsigned long virt,
 	}
 
 	__create_pgd_mapping(init_mm.pgd, phys, virt, size, prot,
-			     late_pgtable_alloc, !debug_pagealloc_enabled());
+			     NULL, !debug_pagealloc_enabled());
 }
 
 static void __init __map_memblock(pgd_t *pgd, phys_addr_t start, phys_addr_t end)