[PATCH bpf-next v3 02/14] selftests/bpf: test_xsk: Initialize bitmap before use

Bastien Curutchet (eBPF Foundation)
2025-09-04T10:11:20Z

bitmap is used before being initialized.

Initialize it to zero before using it.

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 9bcf7b5adbb35bc4f8f74bc24164291c3848d690..37752b2dad651b36d155051931d7b3b902fac403 100644
--- a/tools/testing/selftests/bpf/test_xsk.c
+++ b/tools/testing/selftests/bpf/test_xsk.c
@@ -1079,6 +1079,8 @@ 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);
@@ -1269,6 +1271,8 @@ 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;

--
2.50.1