netdev - [PATCH 06/13] selftests/bpf: test_xsk: Don't exit immediately when gettimeofday fails

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Message-Id: <20250313-xsk-v1-6-7374729a93b9@bootlin.com>
Date: Thu, 13 Mar 2025 11:48:04 +0100
From: "Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@...tlin.com>
To: Björn Töpel <bjorn@...nel.org>, 
 Magnus Karlsson <magnus.karlsson@...el.com>, 
 Maciej Fijalkowski <maciej.fijalkowski@...el.com>, 
 Jonathan Lemon <jonathan.lemon@...il.com>, 
 Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
 Andrii Nakryiko <andrii@...nel.org>, 
 Martin KaFai Lau <martin.lau@...ux.dev>, 
 Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>, 
 Yonghong Song <yonghong.song@...ux.dev>, 
 John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, 
 Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>, 
 Jiri Olsa <jolsa@...nel.org>, Mykola Lysenko <mykolal@...com>, 
 Shuah Khan <shuah@...nel.org>, "David S. Miller" <davem@...emloft.net>, 
 Jakub Kicinski <kuba@...nel.org>, Jesper Dangaard Brouer <hawk@...nel.org>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Alexis Lothore <alexis.lothore@...tlin.com>, netdev@...r.kernel.org, 
 bpf@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 "Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@...tlin.com>
Subject: [PATCH 06/13] selftests/bpf: test_xsk: Don't exit immediately when
 gettimeofday fails

exit_on_error() is called when gettimeofday() fails. This exits the
program immediately and can lead to memory leaks.

Return TEST_FAILURE instead of calling exit_on_error()

Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@...tlin.com>
---
 tools/testing/selftests/bpf/xskxceiver.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
index e2c136fc23ce40ff485de78dac18a4d8ba73353d..5b96f6860ff98de3c6160a1b94ae865a12121382 100644
--- a/tools/testing/selftests/bpf/xskxceiver.c
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -1290,7 +1290,7 @@ static int receive_pkts(struct test_spec *test)

 	ret = gettimeofday(&tv_now, NULL);
 	if (ret)
-		exit_with_error(errno);
+		return TEST_FAILURE;

 	timeradd(&tv_now, &tv_timeout, &tv_end);

@@ -1306,7 +1306,7 @@ static int receive_pkts(struct test_spec *test)

 		ret = gettimeofday(&tv_now, NULL);
 		if (ret)
-			exit_with_error(errno);
+			return TEST_FAILURE;

 		if (timercmp(&tv_now, &tv_end, >)) {
 			print_msg("ERROR: [%s] Receive loop timed out\n", __func__);
@@ -1449,13 +1449,13 @@ static int wait_for_tx_completion(struct xsk_socket_info *xsk)

 	ret = gettimeofday(&tv_now, NULL);
 	if (ret)
-		exit_with_error(errno);
+		return TEST_FAILURE;
 	timeradd(&tv_now, &tv_timeout, &tv_end);

 	while (xsk->outstanding_tx) {
 		ret = gettimeofday(&tv_now, NULL);
 		if (ret)
-			exit_with_error(errno);
+			return TEST_FAILURE;
 		if (timercmp(&tv_now, &tv_end, >)) {
 			print_msg("ERROR: [%s] Transmission loop timed out\n", __func__);
 			return TEST_FAILURE;

-- 
2.48.1