- if (!strncmp(str, "on",2) && cpu_has_nx) {
- __supported_pte_mask |= _PAGE_NX;
- disable_nx = 0;
- } else if (!strncmp(str,"off",3)) {
+ if (!str || !strcmp(str, "on")) {
+ if (cpu_has_nx) {
+ __supported_pte_mask |= _PAGE_NX;
+ disable_nx = 0;
+ }
+ } else if (!strcmp(str,"off")) {