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Message-Id: <1489092729-16871-7-git-send-email-ard.biesheuvel@linaro.org>
Date: Thu, 9 Mar 2017 21:52:04 +0100
From: Ard Biesheuvel <ard.biesheuvel@...aro.org>
To: linux-arm-kernel@...ts.infradead.org,
mark.rutland@....com,
keescook@...omium.org,
labbott@...oraproject.org
Cc: kernel-hardening@...ts.openwall.com,
will.deacon@....com,
catalin.marinas@....com,
Ard Biesheuvel <ard.biesheuvel@...aro.org>
Subject: [PATCH v6 06/11] arm64/mmu: align alloc_init_pte prototype with pmd/pud versions
Align the function prototype of alloc_init_pte() with its pmd and pud
counterparts by replacing the pfn parameter with the equivalent physical
address.
Reviewed-by: Mark Rutland <mark.rutland@....com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@...aro.org>
---
arch/arm64/mm/mmu.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 75e21c33caff..bb9179084217 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -107,7 +107,7 @@ static bool pgattr_change_is_safe(u64 old, u64 new)
}
static void alloc_init_pte(pmd_t *pmd, unsigned long addr,
- unsigned long end, unsigned long pfn,
+ unsigned long end, phys_addr_t phys,
pgprot_t prot,
phys_addr_t (*pgtable_alloc)(void))
{
@@ -128,8 +128,7 @@ static void alloc_init_pte(pmd_t *pmd, unsigned long addr,
do {
pte_t old_pte = *pte;
- set_pte(pte, pfn_pte(pfn, prot));
- pfn++;
+ set_pte(pte, pfn_pte(__phys_to_pfn(phys), prot));
/*
* After the PTE entry has been populated once, we
@@ -137,6 +136,7 @@ static void alloc_init_pte(pmd_t *pmd, unsigned long addr,
*/
BUG_ON(!pgattr_change_is_safe(pte_val(old_pte), pte_val(*pte)));
+ phys += PAGE_SIZE;
} while (pte++, addr += PAGE_SIZE, addr != end);
pte_clear_fixmap();
@@ -182,7 +182,7 @@ static void alloc_init_pmd(pud_t *pud, unsigned long addr, unsigned long end,
BUG_ON(!pgattr_change_is_safe(pmd_val(old_pmd),
pmd_val(*pmd)));
} else {
- alloc_init_pte(pmd, addr, next, __phys_to_pfn(phys),
+ alloc_init_pte(pmd, addr, next, phys,
prot, pgtable_alloc);
BUG_ON(pmd_val(old_pmd) != 0 &&
--
2.7.4
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