diff --git a/sys/compat/linuxkpi/common/include/acpi/acpi_bus.h b/sys/compat/linuxkpi/common/include/acpi/acpi_bus.h
--- a/sys/compat/linuxkpi/common/include/acpi/acpi_bus.h
+++ b/sys/compat/linuxkpi/common/include/acpi/acpi_bus.h
@@ -45,9 +45,9 @@
 	lkpi_acpi_dev_get_first_match_dev(__VA_ARGS__)
 
 ACPI_HANDLE	bsd_acpi_get_handle(device_t bsddev);
-bool		acpi_check_dsm(ACPI_HANDLE handle, const char *uuid, int rev,
+bool		acpi_check_dsm(ACPI_HANDLE handle, const guid_t *uuid, int rev,
 		    uint64_t funcs);
-ACPI_OBJECT *	acpi_evaluate_dsm_typed(ACPI_HANDLE handle, const char *uuid,
+ACPI_OBJECT *	acpi_evaluate_dsm_typed(ACPI_HANDLE handle, const guid_t *uuid,
 		    int rev, int func, ACPI_OBJECT *argv4,
 		    ACPI_OBJECT_TYPE type);
 int		register_acpi_notifier(struct notifier_block *nb);
diff --git a/sys/compat/linuxkpi/common/src/linux_acpi.c b/sys/compat/linuxkpi/common/src/linux_acpi.c
--- a/sys/compat/linuxkpi/common/src/linux_acpi.c
+++ b/sys/compat/linuxkpi/common/src/linux_acpi.c
@@ -72,8 +72,9 @@
 }
 
 bool
-acpi_check_dsm(ACPI_HANDLE handle, const char *uuid, int rev, uint64_t funcs)
+acpi_check_dsm(ACPI_HANDLE handle, const guid_t *uuid, int rev, uint64_t funcs)
 {
+	UINT64 ret;
 
 	if (funcs == 0)
 		return (false);
@@ -87,17 +88,20 @@
 	 */
 	funcs |= 1 << 0;
 
-	return ((acpi_DSMQuery(handle, uuid, rev) & funcs) == funcs);
+	ret = acpi_DSMQuery(handle, (const uint8_t *)uuid, rev);
+	return ((ret & funcs) == funcs);
 }
 
 ACPI_OBJECT *
-acpi_evaluate_dsm_typed(ACPI_HANDLE handle, const char *uuid, int rev,
+acpi_evaluate_dsm_typed(ACPI_HANDLE handle, const guid_t *uuid, int rev,
     int func, ACPI_OBJECT *argv4, ACPI_OBJECT_TYPE type)
 {
 	ACPI_BUFFER buf;
+	ACPI_STATUS status;
 
-	return (ACPI_SUCCESS(acpi_EvaluateDSMTyped(handle, uuid, rev, func,
-	    argv4, &buf, type)) ? (ACPI_OBJECT *)buf.Pointer : NULL);
+	status = acpi_EvaluateDSMTyped(handle, (const uint8_t *)uuid, rev, func,
+	    argv4, &buf, type);
+	return (ACPI_SUCCESS(status) ? (ACPI_OBJECT *)buf.Pointer : NULL);
 }
 
 union linuxkpi_acpi_object *
@@ -105,9 +109,11 @@
     UINT64 rev, UINT64 func, union linuxkpi_acpi_object *pkg)
 {
 	ACPI_BUFFER buf;
+	ACPI_STATUS status;
 
-	return (ACPI_SUCCESS(acpi_EvaluateDSM(ObjHandle, (const uint8_t *)guid,
-	    rev, func, (ACPI_OBJECT *)pkg, &buf)) ?
+	status = acpi_EvaluateDSM(ObjHandle, (const uint8_t *)guid, rev, func,
+	    (ACPI_OBJECT *)pkg, &buf);
+	return (ACPI_SUCCESS(status) ?
 	    (union linuxkpi_acpi_object *)buf.Pointer : NULL);
 }
 
@@ -323,13 +329,13 @@
 }
 
 bool
-acpi_check_dsm(ACPI_HANDLE handle, const char *uuid, int rev, uint64_t funcs)
+acpi_check_dsm(ACPI_HANDLE handle, const guid_t *uuid, int rev, uint64_t funcs)
 {
 	return (false);
 }
 
 ACPI_OBJECT *
-acpi_evaluate_dsm_typed(ACPI_HANDLE handle, const char *uuid, int rev,
+acpi_evaluate_dsm_typed(ACPI_HANDLE handle, const guid_t *uuid, int rev,
      int func, ACPI_OBJECT *argv4, ACPI_OBJECT_TYPE type)
 {
 	return (NULL);