From caf2689675433028b65cc1abd00ce9b3c7d9d391 Mon Sep 17 00:00:00 2001 From: Sameeh Jubran Date: Wed, 3 Jun 2020 08:50:22 +0000 Subject: [PATCH] net: ena: xdp: XDP_TX: fix memory leak [ Upstream commit cd07ecccba13b8bd5023ffe7be57363d07e3105f ] When sending very high packet rate, the XDP tx queues can get full and start dropping packets. In this case we don't free the pages which results in ena driver draining the system memory. Fix: Simply free the pages when necessary. Fixes: 548c4940b9f1 ("net: ena: Implement XDP_TX action") Signed-off-by: Sameeh Jubran Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index cada6e7e30f4e..48449efb6039f 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -358,7 +358,7 @@ error_unmap_dma: ena_unmap_tx_buff(xdp_ring, tx_info); tx_info->xdpf = NULL; error_drop_packet: - + __free_page(tx_info->xdp_rx_page); return NETDEV_TX_OK; } -- 2.47.2