Build failure in linux-next: implicit declaration of acpi_has_method

From: Venkat Rao Bagalkote

Date: Wed Apr 15 2026 - 03:16:28 EST


Greetings!!!

IBM CI has reported a build failure on linux-next repo.

Failures:

drivers/bluetooth/btintel_pcie.c: In function ‘btintel_pcie_acpi_reset_method’:
drivers/bluetooth/btintel_pcie.c:2309:14: error: implicit declaration of function ‘acpi_has_method’; did you mean ‘acpi_has_watchdog’? [-Werror=implicit-function-declaration]
 2309 |         if (!acpi_has_method(handle, "_PRR")) {
      |              ^~~~~~~~~~~~~~~
      |              acpi_has_watchdog


The function acpi_has_method() lacks a stub definition in include/linux/acpi.h
for the !CONFIG_ACPI case, unlike other ACPI utility functions.


Below diff fixes the build failure.


diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index bfacb9475aac..d3804f7f2610 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -1100,6 +1100,11 @@ static inline const char *acpi_get_subsystem_id(acpi_handle handle)
        return ERR_PTR(-ENODEV);
 }

+static inline bool acpi_has_method(acpi_handle handle, char *name)
+{
+        return false;
+}
+
 static inline int acpi_register_wakeup_handler(int wake_irq,
        bool (*wakeup)(void *context), void *context)
 {


Please let me know, If this looks good, I can submit a formal patch.


Regards,

Venkat.