ACPI_PTR_DIFF 89 include/acpi/acmacros.h #define ACPI_TO_INTEGER(p) ACPI_PTR_DIFF (p,(void *) NULL) ACPI_PTR_DIFF 90 include/acpi/acmacros.h #define ACPI_OFFSET(d,f) (acpi_size) ACPI_PTR_DIFF (&(((d *)0)->f),(void *) NULL)