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From: "Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@bootlin.com>
To: "Björn Töpel" <bjorn@kernel.org>,
	"Magnus Karlsson" <magnus.karlsson@intel.com>,
	"Maciej Fijalkowski" <maciej.fijalkowski@intel.com>,
	"Jonathan Lemon" <jonathan.lemon@gmail.com>,
	"Alexei Starovoitov" <ast@kernel.org>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"Andrii Nakryiko" <andrii@kernel.org>,
	"Martin KaFai Lau" <martin.lau@linux.dev>,
	"Eduard Zingerman" <eddyz87@gmail.com>,
	"Song Liu" <song@kernel.org>,
	"Yonghong Song" <yonghong.song@linux.dev>,
	"John Fastabend" <john.fastabend@gmail.com>,
	"KP Singh" <kpsingh@kernel.org>,
	"Stanislav Fomichev" <sdf@fomichev.me>,
	"Hao Luo" <haoluo@google.com>, "Jiri Olsa" <jolsa@kernel.org>,
	"Mykola Lysenko" <mykolal@fb.com>,
	"Shuah Khan" <shuah@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	"Jakub Kicinski" <kuba@kernel.org>,
	"Jesper Dangaard Brouer" <hawk@kernel.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	 Alexis Lothore <alexis.lothore@bootlin.com>,
	netdev@vger.kernel.org,  bpf@vger.kernel.org,
	linux-kselftest@vger.kernel.org,  linux-kernel@vger.kernel.org,
	 "Bastien Curutchet (eBPF Foundation)"
	<bastien.curutchet@bootlin.com>
Subject: [PATCH bpf-next v7 02/15] selftests/bpf: test_xsk: Initialize bitmap before use
Date: Fri, 31 Oct 2025 09:04:38 +0100	[thread overview]
Message-ID: <20251031-xsk-v7-2-39fe486593a3@bootlin.com> (raw)
In-Reply-To: <20251031-xsk-v7-0-39fe486593a3@bootlin.com>

bitmap is used before being initialized.

Initialize it to zero before using it.

Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
---
 tools/testing/selftests/bpf/test_xsk.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/bpf/test_xsk.c b/tools/testing/selftests/bpf/test_xsk.c
index 02250f29f9946d1ca701e30a900617056d91587b..679491b6b9dd80ccb2b92729141fb8715b874c6d 100644
--- a/tools/testing/selftests/bpf/test_xsk.c
+++ b/tools/testing/selftests/bpf/test_xsk.c
@@ -1069,6 +1069,8 @@ static int receive_pkts(struct test_spec *test)
 	u32 sock_num = 0;
 	int res, ret;
 
+	bitmap_zero(bitmap, test->nb_sockets);
+
 	ret = gettimeofday(&tv_now, NULL);
 	if (ret)
 		exit_with_error(errno);
@@ -1259,6 +1261,8 @@ static int send_pkts(struct test_spec *test, struct ifobject *ifobject)
 	DECLARE_BITMAP(bitmap, test->nb_sockets);
 	u32 i, ret;
 
+	bitmap_zero(bitmap, test->nb_sockets);
+
 	while (!(all_packets_sent(test, bitmap))) {
 		for (i = 0; i < test->nb_sockets; i++) {
 			struct pkt_stream *pkt_stream;

-- 
2.51.0


  parent reply	other threads:[~2025-10-31  8:04 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-31  8:04 [PATCH bpf-next v7 00/15] selftests/bpf: Integrate test_xsk.c to test_progs framework Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 01/15] selftests/bpf: test_xsk: Split xskxceiver Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` Bastien Curutchet (eBPF Foundation) [this message]
2025-10-31  8:04 ` [PATCH bpf-next v7 03/15] selftests/bpf: test_xsk: Fix __testapp_validate_traffic()'s return value Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 04/15] selftests/bpf: test_xsk: fix memory leak in testapp_stats_rx_dropped() Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 05/15] selftests/bpf: test_xsk: fix memory leak in testapp_xdp_shared_umem() Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 06/15] selftests/bpf: test_xsk: Wrap test clean-up in functions Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 07/15] selftests/bpf: test_xsk: Release resources when swap fails Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 08/15] selftests/bpf: test_xsk: Add return value to init_iface() Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 09/15] selftests/bpf: test_xsk: Don't exit immediately when xsk_attach fails Bastien Curutchet (eBPF Foundation)
2025-10-31  8:42   ` bot+bpf-ci
2025-10-31  8:04 ` [PATCH bpf-next v7 10/15] selftests/bpf: test_xsk: Don't exit immediately when gettimeofday fails Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 11/15] selftests/bpf: test_xsk: Don't exit immediately when workers fail Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 12/15] selftests/bpf: test_xsk: Don't exit immediately if validate_traffic fails Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 13/15] selftests/bpf: test_xsk: Don't exit immediately on allocation failures Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 14/15] selftests/bpf: test_xsk: Isolate non-CI tests Bastien Curutchet (eBPF Foundation)
2025-10-31  8:04 ` [PATCH bpf-next v7 15/15] selftests/bpf: test_xsk: Integrate test_xsk.c to test_progs framework Bastien Curutchet (eBPF Foundation)
2025-10-31 16:44 ` [PATCH bpf-next v7 00/15] selftests/bpf: " patchwork-bot+netdevbpf

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