netdev - [PATCH bpf-next] selftests/bpf: fix selftests build with old system-wide headers

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Date:   Wed, 16 Jun 2021 21:14:46 -0700
From:   Andrii Nakryiko <andrii@...nel.org>
To:     <bpf@...r.kernel.org>, <netdev@...r.kernel.org>, <ast@...com>,
        <daniel@...earbox.net>
CC:     <andrii@...nel.org>, <kernel-team@...com>,
        Kuniyuki Iwashima <kuniyu@...zon.co.jp>
Subject: [PATCH bpf-next] selftests/bpf: fix selftests build with old system-wide headers

migrate_reuseport.c selftest relies on having TCP_FASTOPEN_CONNECT defined in
system-wide netinet/tcp.h. Selftests can use up-to-date uapi/linux/tcp.h, but
that one doesn't have SOL_TCP. So instead of switching everything to uapi
header, add #define for TCP_FASTOPEN_CONNECT to fix the build.

Cc: Kuniyuki Iwashima <kuniyu@...zon.co.jp>
Fixes: c9d0bdef89a6 ("bpf: Test BPF_SK_REUSEPORT_SELECT_OR_MIGRATE.")
Signed-off-by: Andrii Nakryiko <andrii@...nel.org>
---
 tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c b/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
index 0fa3f750567d..59adb4715394 100644
--- a/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
+++ b/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
@@ -30,6 +30,10 @@
 #include "test_migrate_reuseport.skel.h"
 #include "network_helpers.h"
 
+#ifndef TCP_FASTOPEN_CONNECT
+#define TCP_FASTOPEN_CONNECT 30
+#endif
+
 #define IFINDEX_LO 1
 
 #define NR_SERVERS 5
-- 
2.30.2