From 702498a1426bc95b6f49f9c5fba616110cbd3947 Mon Sep 17 00:00:00 2001
From: Mickaël Salaün <mic@digikod.net>
Date: Fri, 10 Feb 2017 00:21:44 +0100
Subject: bpf: Remove bpf_sys.h from selftests
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Add require dependency headers.

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 tools/lib/bpf/bpf.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'tools/lib')

diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index f8a2b7fa7741..50e04cc5dddd 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -50,7 +50,13 @@ static __u64 ptr_to_u64(const void *ptr)
 static int sys_bpf(enum bpf_cmd cmd, union bpf_attr *attr,
 		   unsigned int size)
 {
+#ifdef __NR_bpf
 	return syscall(__NR_bpf, cmd, attr, size);
+#else
+	fprintf(stderr, "No bpf syscall, kernel headers too old?\n");
+	errno = ENOSYS;
+	return -1;
+#endif
 }
 
 int bpf_create_map(enum bpf_map_type map_type, int key_size,
-- 
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