libbpf: Ignore -Wformat-nonliteral warning
authorAndrey Ignatov <rdna@fb.com>
Sun, 7 Apr 2019 05:37:34 +0000 (22:37 -0700)
committerAlexei Starovoitov <ast@kernel.org>
Sun, 7 Apr 2019 06:13:54 +0000 (23:13 -0700)
commitff466b58055f2d28d8ddc1388af312e87a693efe
tree96b75cd697c6c179a17817c18c0ad9700fa4cedf
parent347807d3876aa9c75f64001c736e0a16a6b21acf
libbpf: Ignore -Wformat-nonliteral warning

vsprintf() in __base_pr() uses nonliteral format string and it breaks
compilation for those who provide corresponding extra CFLAGS, e.g.:
https://github.com/libbpf/libbpf/issues/27

If libbpf is built with the flags from PR:

  libbpf.c:68:26: error: format string is not a string literal
  [-Werror,-Wformat-nonliteral]
          return vfprintf(stderr, format, args);
                                  ^~~~~~
  1 error generated.

Ignore this warning since the use case in libbpf.c is legit.

Signed-off-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
tools/lib/bpf/libbpf.c