netdev - [PATCH bpf] selftests: bpf: test_progs: initialize duration in singal

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Message-Id: <20190306232526.219483-1-sdf@google.com>
Date:   Wed,  6 Mar 2019 15:25:26 -0800
From:   Stanislav Fomichev <sdf@...gle.com>
To:     netdev@...r.kernel.org, bpf@...r.kernel.org
Cc:     davem@...emloft.net, ast@...nel.org, daniel@...earbox.net,
        Stanislav Fomichev <sdf@...gle.com>
Subject: [PATCH bpf] selftests: bpf: test_progs: initialize duration in
 singal_pending test

CHECK macro implicitly uses duration. We call CHECK() a couple of times
before duration is initialized from bpf_prog_test_run().
Explicitly set duration to 0 to avoid compiler warnings.

Fixes: 740f8a657221 ("selftests/bpf: make sure signal interrupts BPF_PROG_TEST_RUN")

Signed-off-by: Stanislav Fomichev <sdf@...gle.com>
---
 tools/testing/selftests/bpf/prog_tests/signal_pending.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/signal_pending.c b/tools/testing/selftests/bpf/prog_tests/signal_pending.c
index f2a37bbf91ab..996e808f43a2 100644
--- a/tools/testing/selftests/bpf/prog_tests/signal_pending.c
+++ b/tools/testing/selftests/bpf/prog_tests/signal_pending.c
@@ -12,7 +12,7 @@ static void test_signal_pending_by_type(enum bpf_prog_type prog_type)
 	struct itimerval timeo = {
 		.it_value.tv_usec = 100000, /* 100ms */
 	};
-	__u32 duration, retval;
+	__u32 duration = 0, retval;
 	int prog_fd;
 	int err;
 	int i;
-- 
2.21.0.352.gf09ad66450-goog