evie/android_kernel_oneplus_msm8998
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UPSTREAM: arm64: mm: remove pointless PAGE_MASKing

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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>

Bug: 30369029
Patchset: rework-pagetable

(cherry picked from commit e2c30ee320eb96304896c7ab84499e5bc5e5fb6e)
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
Change-Id: I86d3438aecf7295d5895e1430c1e19fbc82c9719
This commit is contained in:
Mark Rutland 2015-12-09 12:44:36 +00:00 • committed by Jeff Vander Stoep
parent 662afd95b3
commit c47e4a12f5
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/mm/mmu.c
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@ -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);
}