linux-kernel - [PATCH][next] MIPS,bpf: fix missing break in switch statement

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Message-Id: <20170822220349.5648-1-colin.king@canonical.com>
Date:   Tue, 22 Aug 2017 23:03:49 +0100
From:   Colin King <colin.king@...onical.com>
To:     Ralf Baechle <ralf@...ux-mips.org>,
        David Daney <david.daney@...ium.com>,
        "David S . Miller" <davem@...emloft.net>,
        Daniel Borkmann <daniel@...earbox.net>,
        linux-mips@...ux-mips.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] MIPS,bpf: fix missing break in switch statement

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

There is a missing break causing a fall-through and setting
ctx.use_bbit_insns to the wrong value. Fix this by adding the
missing break.

Detected with cppcheck:
"Variable 'ctx.use_bbit_insns' is reassigned a value before the old
one has been used. 'break;' missing?"

Fixes: 8d8d18c3283f ("MIPS,bpf: Fix using smp_processor_id() in preemptible splat.")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 arch/mips/net/ebpf_jit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c
index 44ddc12cbb0e..7646891c4e9b 100644
--- a/arch/mips/net/ebpf_jit.c
+++ b/arch/mips/net/ebpf_jit.c
@@ -1892,6 +1892,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
 	case CPU_CAVIUM_OCTEON2:
 	case CPU_CAVIUM_OCTEON3:
 		ctx.use_bbit_insns = 1;
+		break;
 	default:
 		ctx.use_bbit_insns = 0;
 	}
-- 
2.14.1