netdev - [PATCH bpf-next 2/4] selftests: bpf: fix -Wformat-security warning for flow_dissector

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Message-Id: <20190402170835.30732-3-sdf@google.com>
Date:   Tue,  2 Apr 2019 10:08:33 -0700
From:   Stanislav Fomichev <sdf@...gle.com>
To:     netdev@...r.kernel.org, bpf@...r.kernel.org
Cc:     davem@...emloft.net, ast@...nel.org, daniel@...earbox.net,
        Stanislav Fomichev <sdf@...gle.com>
Subject: [PATCH bpf-next 2/4] selftests: bpf: fix -Wformat-security warning
 for flow_dissector_load.c

flow_dissector_load.c:55:19: warning: format string is not a string literal (potentially insecure)
      [-Wformat-security]
                error(1, errno, command);
                                ^~~~~~~
flow_dissector_load.c:55:19: note: treat the string as an argument to avoid this
                error(1, errno, command);
                                ^
                                "%s",
1 warning generated.

Signed-off-by: Stanislav Fomichev <sdf@...gle.com>
---
 tools/testing/selftests/bpf/flow_dissector_load.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/flow_dissector_load.c b/tools/testing/selftests/bpf/flow_dissector_load.c
index 77cafa66d048..7136ab9ffa73 100644
--- a/tools/testing/selftests/bpf/flow_dissector_load.c
+++ b/tools/testing/selftests/bpf/flow_dissector_load.c
@@ -52,7 +52,7 @@ static void detach_program(void)
 	sprintf(command, "rm -r %s", cfg_pin_path);
 	ret = system(command);
 	if (ret)
-		error(1, errno, command);
+		error(1, errno, "%s", command);
 }
 
 static void parse_opts(int argc, char **argv)
-- 
2.21.0.392.gf8f6787159e-goog