Re: [PATCH] acpi/_DSM: Add rev/func to warning message when acpi_evaluate_dsm failed.
From: Rafael J. Wysocki
Date: Thu Aug 29 2024 - 07:36:34 EST
On Tue, Aug 27, 2024 at 1:35 AM David Wang <00107082@xxxxxxx> wrote:
>
> When acpi_evaluate_dsm failed, the warning message lacks the rev
> and func information which is available and helpful.
> For example, iwlwifi would make _DSM queries for lari config,
> and when it failed, all warning messages are all the same:
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade (0x1001)
> With this patch, the warnings would be more informative:
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade rev:0 func:1 (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade rev:0 func:6 (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade rev:0 func:7 (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade rev:0 func:8 (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade rev:0 func:3 (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade rev:0 func:9 (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade rev:0 func:10 (0x1001)
> ACPI: \: failed to evaluate _DSM bf0212f2-788f-c64d-a5b3-1f738e285ade rev:0 func:12 (0x1001)
>
> Signed-off-by: David Wang <00107082@xxxxxxx>
> ---
> 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 ae9384282273..6de542d99518 100644
> --- a/drivers/acpi/utils.c
> +++ b/drivers/acpi/utils.c
> @@ -801,7 +801,8 @@ 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 %pUb (0x%x)\n", guid, ret);
> + "failed to evaluate _DSM %pUb rev:%lld func:%lld (0x%x)\n",
> + guid, rev, func, ret);
>
> return NULL;
> }
> --
Applied as 6.12 material with some edits in the subject and changelog, thanks!