linux-kernel - [PATCH][net-next] net: sched: cls_bpf: use bitwise & rather than logical && on gen

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Message-Id: <20171102200412.16757-1-colin.king@canonical.com>
Date:   Thu,  2 Nov 2017 20:04:12 +0000
From:   Colin King <colin.king@...onical.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>,
        "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][net-next] net: sched: cls_bpf: use bitwise & rather than logical && on gen_flags

From: Colin Ian King <colin.king@...onical.com>

Currently gen_flags is being operated on by a logical && operator rather
than a bitwise & operator. This looks incorrect as these should be bit
flag operations. Fix this.

Detected by CoverityScan, CID#1460305 ("Logical vs. bitwise operator")

Fixes: 3f7889c4c79b ("net: sched: cls_bpf: call block callbacks for offload)
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 net/sched/cls_bpf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index 5f701c8670a2..bc3edde1b9d7 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -174,7 +174,7 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
 		}
 	}
 
-	if (addorrep && skip_sw && !(prog->gen_flags && TCA_CLS_FLAGS_IN_HW))
+	if (addorrep && skip_sw && !(prog->gen_flags & TCA_CLS_FLAGS_IN_HW))
 		return -EINVAL;
 
 	return 0;
-- 
2.14.1