ACPICA: Ensure that all structures in acobject.h are aligned, via #pragma.
Thus, even if the default compiler setting is non-aligned, the header is compiled
correctly.
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/include/acpi/acobject.h b/include/acpi/acobject.h
index 8fdee31..b81e923 100644
--- a/include/acpi/acobject.h
+++ b/include/acpi/acobject.h
@@ -52,7 +52,15 @@
* to the interpreter, and to keep track of the various handlers such as
* address space handlers and notify handlers. The object is a constant
* size in order to allow it to be cached and reused.
+ *
+ * Note: The object is optimized to be aligned and will not work if it is
+ * byte-packed.
*/
+#if ACPI_MACHINE_WIDTH == 64
+#pragma pack(8)
+#else
+#pragma pack(4)
+#endif
/*******************************************************************************
*
@@ -101,7 +109,8 @@
ACPI_OBJECT_COMMON_HEADER};
struct acpi_object_integer {
- ACPI_OBJECT_COMMON_HEADER acpi_integer value;
+ ACPI_OBJECT_COMMON_HEADER u8 fill[3]; /* Prevent warning on some compilers */
+ acpi_integer value;
};
/*
@@ -203,7 +212,9 @@
};
struct acpi_object_processor {
- ACPI_OBJECT_COMMON_HEADER u8 proc_id;
+ ACPI_OBJECT_COMMON_HEADER
+ /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */
+ u8 proc_id;
u8 length;
ACPI_COMMON_NOTIFY_INFO acpi_io_address address;
};
@@ -406,4 +417,6 @@
union acpi_parse_object op;
};
+#pragma pack()
+
#endif /* _ACOBJECT_H */