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    SubjectRe: [PATCH 2/7] x86/mm: Unify pgtable_l5_enabled usage in early boot code
    On Fri, 18 May 2018, Kirill A. Shutemov wrote:

    > Usually pgtable_l5_enabled is defined using cpu_feature_enabled().
    > cpu_feature_enabled() is not available in early boot code. We use
    > several different preprocessor tricks to get around it. It's messy.
    >
    > Unify them all.
    >
    > If cpu_feature_enabled() is not yet available, USE_EARLY_PGTABLE_L5 can
    > be defined before all includes. It makes pgtable_l5_enabled rely on
    > __pgtable_l5_enabled variable instead. This approach fits all early
    > users.
    >
    > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

    Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

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