net/nfp: fix potential integer overflow

Coverity issue: 277204
Fixes: defb9a5dd156 ("nfp: introduce driver initialization")
Cc: stable@dpdk.org
Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 50058e0..d4c94d7 100644 (file)
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -2855,9 +2855,9 @@ nfp_net_init(struct rte_eth_dev *eth_dev)
        case PCI_DEVICE_ID_NFP6000_PF_NIC:
        case PCI_DEVICE_ID_NFP6000_VF_NIC:
                start_q = nn_cfg_readl(hw, NFP_NET_CFG_START_TXQ);
-               tx_bar_off = start_q * NFP_QCP_QUEUE_ADDR_SZ;
+               tx_bar_off = (uint64_t)start_q * NFP_QCP_QUEUE_ADDR_SZ;
                start_q = nn_cfg_readl(hw, NFP_NET_CFG_START_RXQ);
-               rx_bar_off = start_q * NFP_QCP_QUEUE_ADDR_SZ;
+               rx_bar_off = (uint64_t)start_q * NFP_QCP_QUEUE_ADDR_SZ;
                break;
        default:
                PMD_DRV_LOG(ERR, "nfp_net: no device ID matching");