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    Subject[PATCH 61/76] ACPI, APEI, EINJ, limit the range of einj_param
    Date
    From: Chen Gong <gong.chen@linux.intel.com>

    On the platforms with ACPI4.x support, parameter extension
    is not always doable, which means only parameter extension
    is enabled, einj_param can take effect.

    v2->v1: stopping early in einj_get_parameter_address for einj_param

    Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
    Acked-by: Tony Luck <tony.luck@intel.com>
    Signed-off-by: Len Brown <len.brown@intel.com>
    ---
    drivers/acpi/apei/einj.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
    index 4ca087d..3d3816f 100644
    --- a/drivers/acpi/apei/einj.c
    +++ b/drivers/acpi/apei/einj.c
    @@ -238,7 +238,7 @@ static void *einj_get_parameter_address(void)
    return v5param;
    }
    }
    - if (paddrv4) {
    + if (param_extension && paddrv4) {
    struct einj_parameter *v4param;

    v4param = acpi_os_map_memory(paddrv4, sizeof(*v4param));
    --
    1.7.10.rc2.19.gfae9d


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