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Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/queue_stack_map.c')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/queue_stack_map.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c b/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c
index 8ccba3ab70ee..b9822f914eeb 100644
--- a/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c
+++ b/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c
@@ -14,7 +14,7 @@ static void test_queue_stack_map_by_type(int type)
int i, err, prog_fd, map_in_fd, map_out_fd;
char file[32], buf[128];
struct bpf_object *obj;
- struct iphdr *iph = (void *)buf + sizeof(struct ethhdr);
+ struct iphdr iph;
/* Fill test values to be used */
for (i = 0; i < MAP_SIZE; i++)
@@ -60,15 +60,17 @@ static void test_queue_stack_map_by_type(int type)
err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
buf, &size, &retval, &duration);
- if (err || retval || size != sizeof(pkt_v4) ||
- iph->daddr != val)
+ if (err || retval || size != sizeof(pkt_v4))
+ break;
+ memcpy(&iph, buf + sizeof(struct ethhdr), sizeof(iph));
+ if (iph.daddr != val)
break;
}
- CHECK(err || retval || size != sizeof(pkt_v4) || iph->daddr != val,
+ CHECK(err || retval || size != sizeof(pkt_v4) || iph.daddr != val,
"bpf_map_pop_elem",
"err %d errno %d retval %d size %d iph->daddr %u\n",
- err, errno, retval, size, iph->daddr);
+ err, errno, retval, size, iph.daddr);
/* Queue is empty, program should return TC_ACT_SHOT */
err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),