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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>
wifi-calibration
Starikovskiy, Alexey Y 2006-08-18 11:23:00 -04:00 committed by Len Brown
parent d68909f4c3
commit df6fd31995
2 changed files with 2 additions and 2 deletions
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2
arch/i386/kernel/acpi/boot.c
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@ -59,7 +59,7 @@ static inline int gsi_irq_sharing(int gsi) { return gsi; }
#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: "

2
arch/ia64/kernel/acpi.c
View File

@ -55,7 +55,7 @@
#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: "