linux-kernel - Re: [PATCH v6 1/2] ACPI: tables: Add AGDI to the list of known table signatures

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Date:   Wed, 9 Mar 2022 19:45:47 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Ilkka Koskinen <ilkka@...amperecomputing.com>
Cc:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Hanjun Guo <guohanjun@...wei.com>,
        Sudeep Holla <sudeep.holla@....com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Len Brown <lenb@...nel.org>,
        Robert Moore <robert.moore@...el.com>,
        James Morse <james.morse@....com>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        patches@...erecomputing.com, scott@...amperecomputing.com,
        Darren Hart <darren@...amperecomputing.com>
Subject: Re: [PATCH v6 1/2] ACPI: tables: Add AGDI to the list of known table signatures

On Wed, Mar 9, 2022 at 3:08 AM Ilkka Koskinen
<ilkka@...amperecomputing.com> wrote:
>
> Add AGDI to the list of known ACPI table signatures to allow the
> kernel to recognize it when upgrading tables via initrd.
>
> Signed-off-by: Ilkka Koskinen <ilkka@...amperecomputing.com>
> Reviewed-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> ---
>  drivers/acpi/tables.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
> index 369eb998c3d1..ceee808f7f2a 100644
> --- a/drivers/acpi/tables.c
> +++ b/drivers/acpi/tables.c
> @@ -545,7 +545,7 @@ static const char table_sigs[][ACPI_NAMESEG_SIZE] __initconst = {
>         ACPI_SIG_WDDT, ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT,
>         ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT,
>         ACPI_SIG_IORT, ACPI_SIG_NFIT, ACPI_SIG_HMAT, ACPI_SIG_PPTT,
> -       ACPI_SIG_NHLT, ACPI_SIG_AEST, ACPI_SIG_CEDT };
> +       ACPI_SIG_NHLT, ACPI_SIG_AEST, ACPI_SIG_CEDT, ACPI_SIG_AGDI };
>
>  #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)

I'm noticing that this depends on the linux-next-only commit
783dedf41b79ac7a3a68b51cf6f88cbfd6dc3292, so it is probably better if
I apply it and the other patch in the series can be routed via ARM64.