PARAM_UNSET
if (level && p->level != PARAM_UNSET) {
if (pages && p->pages != PARAM_UNSET) {
struct debug_param_t p = { { 0 }, PARAM_UNSET, PARAM_UNSET };
if (p.level != PARAM_UNSET && p.level != DEBUG_OFF_LEVEL &&
if (p.pages != PARAM_UNSET && p.pages < 0)