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Message-ID: <CAJZ5v0h+kKwdntGPC5PP6N0ZRbRzLxuwcwTGm-PNBH6Z3mnETg@mail.gmail.com>
Date: Tue, 17 May 2022 16:49:38 +0200
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Michael Niewöhner <linux@...ewoehner.de>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>,
Len Brown <lenb@...nel.org>,
"open list:ACPI" <linux-acpi@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ACPI: utils: include UUID in _DSM evaluation warning
On Mon, May 16, 2022 at 7:25 PM Michael Niewöhner <linux@...ewoehner.de> wrote:
>
> The _DSM evaluation warning in its current form is not very helpful, as
> it lacks any specific information:
> ACPI: \: failed to evaluate _DSM (0x1001)
>
> Thus, include the UUID of the missing _DSM:
> ACPI: \: failed to evaluate _DSM bf0212f2-... (0x1001)
>
> Signed-off-by: Michael Niewöhner <linux@...ewoehner.de>
> ---
> drivers/acpi/utils.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
> index d5cedffeeff9..7da993f5b6c3 100644
> --- a/drivers/acpi/utils.c
> +++ b/drivers/acpi/utils.c
> @@ -681,7 +681,8 @@ acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid,
> u64 rev, u64 func,
>
> if (ret != AE_NOT_FOUND)
> acpi_handle_warn(handle,
> - "failed to evaluate _DSM (0x%x)\n", ret);
> + "failed to evaluate _DSM %pUb (0x%x)\n",
> + ret, guid);
Shouldn't this be "guid, ret" ? Also, don't you want to print the
value of the GUID rather than the address of its location?
And I don't think you need to break the line here.
>
> return NULL;
> }
> --
> 2.34.1
>
>
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