Re: [PATCH] ACPICA: Check whether ACPI is disabled before getting a table

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On Mon, Aug 21, 2017 at 3:20 PM, Borislav Petkov <bp@xxxxxxxxx> wrote:
> Borislav Petkov <bp@xxxxxxx>
>
> ... and save us the splrinking of this test around in the callers.
>
> No functionality change.
>
> Signed-off-by: Borislav Petkov <bp@xxxxxxx>
> ---
>  drivers/acpi/acpica/tbxface.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
> index 010b1c43df92..881b0d5b2838 100644
> --- a/drivers/acpi/acpica/tbxface.c
> +++ b/drivers/acpi/acpica/tbxface.c
> @@ -226,6 +226,9 @@ acpi_get_table_header(char *signature,
>         u32 j;
>         struct acpi_table_header *header;
>
> +       if (acpi_disabled)
> +               return (AE_ERROR);
> +
>         /* Parameter validation */
>
>         if (!signature || !out_table_header) {
> --

Is acpi_disabled an ACPICA variable?  If not, this cannot go upstream.
Not a big deal I guess, but somewhat yucky.
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