From 5b3febbaa1afcf21a3b6c2c054d4cbcb711d4ea3 Mon Sep 17 00:00:00 2001
From: Alakesh Haloi <alakesh.haloi@gmail.com>
Date: Tue, 28 May 2019 19:02:18 +0000
Subject: [PATCH] selftests: bpf: fix compiler warning in flow_dissector test
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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: 3d2f95444896 ("selftests/bpf: run flow dissector tests in skb-less mode")
Signed-off-by: Alakesh Haloi <alakesh.haloi@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
---
 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 fbd1d88a60953..c938283ac232a 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,		\
-- 
2.39.5