Pull pnpacpi into acpica branch

[firefly-linux-kernel-4.4.55.git] / include / acpi / actbl.h

diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index a46f406e1c94528c79034886dc94c0c130535116..ef2ddcadfe615fa1357c89dad54dd84df7c90c81 100644 (file)
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -44,6 +44,12 @@
 #ifndef __ACTBL_H__
 #define __ACTBL_H__
 
+/*
+ * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
+ * This is the only type that is even remotely portable. Anything else is not
+ * portable, so do not use any other bitfield types.
+ */
+
 /*
  *  Values for description table header signatures
  */