The kernel test robot pointed out that the newly added
bpf_test_run_xdp_live() runner doesn't set the retval in the caller (by
design), which means that the variable can be passed unitialised to
bpf_test_finish(). Fix this by initialising the variable properly.
Fixes: b530e9e1063e ("bpf: Add "live packet" mode for XDP in BPF_PROG_RUN")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
---
net/bpf/test_run.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c
index 25169908be4a..0acdc37c8415 100644
--- a/net/bpf/test_run.c
+++ b/net/bpf/test_run.c
@@ -1207,9 +1207,9 @@ int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr,
bool do_live = (kattr->test.flags & BPF_F_TEST_XDP_LIVE_FRAMES);
u32 tailroom = SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
u32 batch_size = kattr->test.batch_size;
+ u32 retval = 0, duration, max_data_sz;
u32 size = kattr->test.data_size_in;
u32 headroom = XDP_PACKET_HEADROOM;
- u32 retval, duration, max_data_sz;
u32 repeat = kattr->test.repeat;
struct netdev_rx_queue *rxqueue;
struct skb_shared_info *sinfo;
--
2.35.1
