• Lv Zheng's avatar
    ACPI / osl: Remove acpi_get_table_with_size()/early_acpi_os_unmap_memory() users · 6b11d1d6
    Lv Zheng authored
    This patch removes the users of the deprectated APIs:
     acpi_get_table_with_size()
     early_acpi_os_unmap_memory()
    The following APIs should be used instead of:
     acpi_get_table()
     acpi_put_table()
    
    The deprecated APIs are invented to be a replacement of acpi_get_table()
    during the early stage so that the early mapped pointer will not be stored
    in ACPICA core and thus the late stage acpi_get_table() won't return a
    wrong pointer. The mapping size is returned just because it is required by
    early_acpi_os_unmap_memory() to unmap the pointer during early stage.
    
    But as the mapping size equals to the acpi_table_header.length
    (see acpi_tb_init_table_descriptor() and acpi_tb_validate_table()), when
    such a convenient result is returned, driver code will start to use it
    instead of accessing acpi_table_header to obtain the length.
    
    Thus this patch cleans up the drivers by replacing returned table size with
    acpi_table_header.length, and should be a no-op.
    Reported-by: default avatarDan Williams <dan.j.williams@intel.com>
    Signed-off-by: default avatarLv Zheng <lv.zheng@intel.com>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    6b11d1d6
processor_core.c 11.4 KB