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Date:   Tue, 28 May 2019 19:02:18 +0000
From:   Alakesh Haloi <alakesh.haloi@gmail.com>
To:     linux-kselftest@vger.kernel.org, netdev@vger.kernel.org,
        bpf@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Shuah Khan <shuah@kernel.org>, Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Martin KaFai Lau <kafai@fb.com>,
        Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
        Stanislav Fomichev <sdf@google.com>
Subject: [PATCH bpf v2] selftests: bpf: fix compiler warning
Message-ID: <20190528190218.GA6950@ip-172-31-44-144.us-west-2.compute.internal>
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Add missing header file following compiler warning

prog_tests/flow_dissector.c: In function ‘tx_tap’:
prog_tests/flow_dissector.c:175:9: warning: implicit declaration of function ‘writev’; did you mean ‘write’? [-Wimplicit-function-declaration]
  return writev(fd, iov, ARRAY_SIZE(iov));
         ^~~~~~
         write

Fixes: 0905beec9f52 ("selftests/bpf: run flow dissector tests in skb-less mode")
Signed-off-by: Alakesh Haloi <alakesh.haloi@gmail.com>
---
 tools/testing/selftests/bpf/prog_tests/flow_dissector.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/flow_dissector.c b/tools/testing/selftests/bpf/prog_tests/flow_dissector.c
index fbd1d88a6095..c938283ac232 100644
--- a/tools/testing/selftests/bpf/prog_tests/flow_dissector.c
+++ b/tools/testing/selftests/bpf/prog_tests/flow_dissector.c
@@ -3,6 +3,7 @@
 #include <error.h>
 #include <linux/if.h>
 #include <linux/if_tun.h>
+#include <sys/uio.h>
 
 #define CHECK_FLOW_KEYS(desc, got, expected)				\
 	CHECK_ATTR(memcmp(&got, &expected, sizeof(got)) != 0,		\
-- 
2.17.1