commit df6fd31995cb2e38b2a7e94bc8f1559b8f55404e
author Starikovskiy, Alexey Y <alexey.y.starikovskiy@intel.com> Fri Aug 18 11:23:00 2006 -0400
committer Len Brown <len.brown@intel.com> Fri Aug 18 12:56:50 2006 -0400
tree b6e14215a9a9757d6f149c75b5543a31c0f6766e
parent d68909f4c3eee09c13d4e5c86512c6c075553dbd

ACPI: relax BAD_MADT_ENTRY check to allow LSAPIC variable length string UIDs

ACPI 3.0 appended a variable length UID string to the LAPIC structure
as part of support for > 256 processors.  So the BAD_MADT_ENTRY() sanity
check can no longer compare for equality with a fixed structure length.

Signed-off-by: Alexey Y Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

arch/i386/kernel/acpi/boot.c

diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 0db6387..ee003bc 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -59,7 +59,7 @@
 
 #define BAD_MADT_ENTRY(entry, end) (					    \
 		(!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
-		((acpi_table_entry_header *)entry)->length != sizeof(*entry))
+		((acpi_table_entry_header *)entry)->length < sizeof(*entry))
 
 #define PREFIX			"ACPI: "