The assignment of the else and else if branches is the same, so the else if here is redundant, so we remove it and add a comment to make the code here readable. ./kernel/bpf/cgroup_iter.c:81:6-8: WARNING: possible condition with no effect (if == else). Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2016 Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx> Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx> --- kernel/bpf/cgroup_iter.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/kernel/bpf/cgroup_iter.c b/kernel/bpf/cgroup_iter.c index c69bce2f4403..0d200a993489 100644 --- a/kernel/bpf/cgroup_iter.c +++ b/kernel/bpf/cgroup_iter.c @@ -78,9 +78,7 @@ static void *cgroup_iter_seq_start(struct seq_file *seq, loff_t *pos) return css_next_descendant_pre(NULL, p->start_css); else if (p->order == BPF_CGROUP_ITER_DESCENDANTS_POST) return css_next_descendant_post(NULL, p->start_css); - else if (p->order == BPF_CGROUP_ITER_ANCESTORS_UP) - return p->start_css; - else /* BPF_CGROUP_ITER_SELF_ONLY */ + else /* BPF_CGROUP_ITER_SELF_ONLY and BPF_CGROUP_ITER_ANCESTORS_UP */ return p->start_css; } -- 2.20.1.7.g153144c
