diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index fb486a457c761c50702fe8426cdcca0be1a88449..3f92001bacaf3dea28dfd25303851b8587196ff5 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -43,6 +43,7 @@ /* Descriptors defines for Tx and Rx DMA */ #define TX_BD_NUM_DEFAULT 64 #define RX_BD_NUM_DEFAULT 1024 +#define TX_BD_NUM_MIN (MAX_SKB_FRAGS + 1) #define TX_BD_NUM_MAX 4096 #define RX_BD_NUM_MAX 4096 @@ -1370,7 +1371,8 @@ axienet_ethtools_set_ringparam(struct net_device *ndev, if (ering->rx_pending > RX_BD_NUM_MAX || ering->rx_mini_pending || ering->rx_jumbo_pending || - ering->rx_pending > TX_BD_NUM_MAX) + ering->tx_pending < TX_BD_NUM_MIN || + ering->tx_pending > TX_BD_NUM_MAX) return -EINVAL; if (netif_running(ndev))