net: sched: act_bpf: simplify code logic in tcf_bpf_init()

Both is_bpf and is_ebpf are boolean types, so
(!is_bpf && !is_ebpf) || (is_bpf && is_ebpf) can be reduced to
is_bpf == is_ebpf in tcf_bpf_init().

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/act_bpf.c

@@ -333,7 +333,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
 	is_bpf = tb[TCA_ACT_BPF_OPS_LEN] && tb[TCA_ACT_BPF_OPS];
 	is_ebpf = tb[TCA_ACT_BPF_FD];
 
-	if ((!is_bpf && !is_ebpf) || (is_bpf && is_ebpf)) {
+	if (is_bpf == is_ebpf) {
 		ret = -EINVAL;
 		goto put_chain;
 	}