Allow the acpi_ibm module to be built with ACPI_DEBUG.

sys/dev/acpi_support/acpi_ibm.c

@@ -38,6 +38,9 @@
 #include <sys/sysctl.h>
 #include <machine/clock.h>
 
+#define _COMPONENT	ACPI_IBM
+ACPI_MODULE_NAME("IBM")
+
 #define IBM_RTC_MISCKEY 0x65
 #define IBM_RTC_BRIGHTNESS 0x6c
 #define   IBM_RTC_MASK_BRI 0x7
@@ -252,6 +255,8 @@ acpi_ibm_attach(device_t dev)
 static int
 acpi_ibm_detach(device_t dev)
 {
+	ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
+
 	struct acpi_ibm_softc *sc = device_get_softc(dev);
 	acpi_SetInteger(acpi_get_handle(dev), IBM_NAME_ENABLE, 0);
 	acpi_ibm_enable_mask(dev, sc->ibm_initialmask);

sys/dev/acpica/acpivar.h

@@ -152,6 +152,7 @@ extern struct mtx			acpi_mutex;
 #define	ACPI_THERMAL		0x01000000
 #define	ACPI_TIMER		0x02000000
 #define	ACPI_ASUS		0x04000000
+#define	ACPI_IBM		0x08000000
 
 /*
  * Constants for different interrupt models used with acpi_SetIntrModel().

sys/modules/acpi/acpi_ibm/Makefile

@@ -4,5 +4,6 @@
 KMOD=		acpi_ibm
 CFLAGS+=	-I/sys/contrib/dev/acpica
 SRCS=		acpi_ibm.c opt_acpi.h device_if.h bus_if.h acpi_if.h
+SRCS+=		opt_ddb.h
 
 .include <bsd.kmod.mk>