linux-kernel - [PATCH bpf-next 4/6] trace/bpf: allow %o modifier in bpf_trace

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Date:   Wed, 3 Oct 2018 19:57:48 -0700
From:   Alexei Starovoitov <ast@...nel.org>
To:     "David S . Miller" <davem@...emloft.net>
CC:     <daniel@...earbox.net>, <luto@...capital.net>,
        <viro@...iv.linux.org.uk>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kernel-team@...com>
Subject: [PATCH bpf-next 4/6] trace/bpf: allow %o modifier in bpf_trace_printk

Allow %o modifier in bpf_trace_printk() helper

Signed-off-by: Alexei Starovoitov <ast@...nel.org>
---
 kernel/trace/bpf_trace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 08fcfe440c63..b993efef1a4b 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -233,7 +233,7 @@ BPF_CALL_5(bpf_trace_printk, char *, fmt, u32, fmt_size, u64, arg1,
 			i++;
 		}
 
-		if (fmt[i] != 'i' && fmt[i] != 'd' &&
+		if (fmt[i] != 'i' && fmt[i] != 'd' && fmt[i] != 'o' &&
 		    fmt[i] != 'u' && fmt[i] != 'x')
 			return -EINVAL;
 		fmt_cnt++;
-- 
2.17.1