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@xxxxxxxxxxxxxx> --- 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); return NULL; } -- 2.34.1