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Return @root if no descendant left for > + * this walk, Otherwise, return next descendant and has its refcnt incremented. "," -> "." before the "Otherwise". "has its refcnt ..." -> "have its refcnt ...", Or, "return ... with its refcnt ..." (which is better I guess). > + */ > +static struct sgx_cgroup *sgx_cgroup_next_descendant_pre(struct sgx_cgroup *root, > + struct sgx_cgroup *cg) > +{ Reviewed-by: Kai Huang