On 10/9/2023 2:01 AM, Lingbo Kong wrote: ...
+void ath12k_acpi_remove_notify(struct ath12k_base *ab) +{ + acpi_remove_notify_handler(ACPI_HANDLE(ab->dev), + ACPI_DEVICE_NOTIFY, + acpi_dsm_notify); +}
As flagged by the kernel test robot, there is no prototype defined for this public function. In addition, I don't see any callers anywhere in your patch series, so it seems either this should be removed, or a correct call site should be identified and the function prototype should be defined in the appropriate header file.
/jeff