• Yinghai Lu's avatar
    acpi/x86: introduce __apci_map_table, v4 · 7d97277b
    Yinghai Lu authored
    to prevent wrongly overwriting fixmap that still want to use.
    ACPI used to rely on low mappings being all linearly mapped and
    grew a habit: it never really unmapped certain kinds of tables
    after use.
    This can cause problems - for example the hypothetical case
    when some spurious access still references it.
    v2: remove prev_map and prev_size in __apci_map_table
    v3: let acpi_os_unmap_memory() call early_iounmap too, so remove extral calling to
    v4: fix typo in one acpi_get_table_with_size calling
    Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
    Acked-by: default avatarLen Brown <len.brown@intel.com>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
boot.c 45.4 KB