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    Subject[PATCH v4 02/19] ARM: LPAE: Fix early_pte_alloc() assumption about the Linux PTE
    Date
    With LPAE we no longer have software bits in a separate Linux PTE and
    the early_pte_alloc() function should pass PTE_HWTABLE_OFF +
    PTE_HWTABLE_SIZE to early_alloc() to avoid allocating extra memory.

    Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
    ---
    arch/arm/mm/mmu.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
    index 3c67e92..dcafa5c 100644
    --- a/arch/arm/mm/mmu.c
    +++ b/arch/arm/mm/mmu.c
    @@ -533,7 +533,7 @@ static void __init *early_alloc(unsigned long sz)
    static pte_t * __init early_pte_alloc(pmd_t *pmd, unsigned long addr, unsigned long prot)
    {
    if (pmd_none(*pmd)) {
    - pte_t *pte = early_alloc(2 * PTRS_PER_PTE * sizeof(pte_t));
    + pte_t *pte = early_alloc(PTE_HWTABLE_OFF + PTE_HWTABLE_SIZE);
    __pmd_populate(pmd, __pa(pte), prot);
    }
    BUG_ON(pmd_bad(*pmd));


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