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DateWed, 4 Feb 2009 10:46:50 -0800
FromGreg KH <>
Subject[patch 31/41] ACPICA: Fix wrong resource descriptor length for 64-bit build
2.6.27-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Bob Moore <robert.moore@intel.com>

commit 9db4fcd99f7ef886ded97cd26a8642c70fbe34df upstream.

The "minimal" descriptors such as EndTag are calculated as 12
bytes long, but the actual length in the internal descriptor is
16 because of the round-up to 8 on 64-bit build.

http://www.acpica.org/bugzilla/show_bug.cgi?id=728

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
include/acpi/actypes.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -1225,8 +1225,8 @@ struct acpi_resource {

#pragma pack()

-#define ACPI_RS_SIZE_MIN 12
#define ACPI_RS_SIZE_NO_DATA 8 /* Id + Length fields */
+#define ACPI_RS_SIZE_MIN (u32) ACPI_ROUND_UP_TO_NATIVE_WORD (12)
#define ACPI_RS_SIZE(type) (u32) (ACPI_RS_SIZE_NO_DATA + sizeof (type))

#define ACPI_NEXT_RESOURCE(res) (struct acpi_resource *)((u8 *) res + res->length)


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