According to the ACPI 6.5 specification the component Entry starts at offset 36 in the XSDT table which is not a multiple of 8. Hence we must mark the structure as packed. We did not see an error due to the incorrect packing yet as in acpi_tb_parse_root_table() we use ACPI_ADD_PTR() to find the address of Entry. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@xxxxxxxxxxxxx> --- include/acpi/actbl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h index 451f6276da49..1a37ac378765 100644 --- a/include/acpi/actbl.h +++ b/include/acpi/actbl.h @@ -148,7 +148,7 @@ struct acpi_table_rsdt { struct acpi_table_xsdt { struct acpi_table_header header; /* Common ACPI table header */ u64 table_offset_entry[1]; /* Array of pointers to ACPI tables */ -}; +} __packed; #define ACPI_RSDT_ENTRY_SIZE (sizeof (u32)) #define ACPI_XSDT_ENTRY_SIZE (sizeof (u64)) -- 2.40.1