net: mvneta: recycle the page in case of out-of-order

Recycle the received page into the page_pool cache if the dma descriptors
arrived in a wrong order

Fixes: ca0e014609f05 ("net: mvneta: move skb build after descriptors processing")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 69a9000..c4345e3 100644 (file)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2383,8 +2383,12 @@ static int mvneta_rx_swbm(struct napi_struct *napi,
                        mvneta_swbm_rx_frame(pp, rx_desc, rxq, &xdp_buf,
                                             &size, page, &ps);
                } else {
-                       if (unlikely(!xdp_buf.data_hard_start))
+                       if (unlikely(!xdp_buf.data_hard_start)) {
+                               rx_desc->buf_phys_addr = 0;
+                               page_pool_put_full_page(rxq->page_pool, page,
+                                                       true);
                                continue;
+                       }
 
                        mvneta_swbm_add_rx_fragment(pp, rx_desc, rxq, &xdp_buf,
                                                    &size, page);