Commit df6fd319 authored by Starikovskiy, Alexey Y's avatar Starikovskiy, Alexey Y Committed by Len Brown
Browse files

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: default avatarAlexey Y Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent d68909f4

arch/i386/kernel/acpi/boot.c

+1 −1
Original line number Diff line number Diff line
@@ -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: "

arch/ia64/kernel/acpi.c

+1 −1
Original line number Diff line number Diff line
@@ -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: "

CRA Git | Maintained and supported by SUSTech CRA and CCSE