RDE_FILTER_SKIP_COUNT
struct filter_rule *skip[RDE_FILTER_SKIP_COUNT];
struct filter_rule *cur, *prev, *head[RDE_FILTER_SKIP_COUNT];
for (i = 0; i < RDE_FILTER_SKIP_COUNT; ++i)
for (i = 0; i < RDE_FILTER_SKIP_COUNT; ++i)