Hi Joao, [auto build test WARNING on net-next/master] [also build test WARNING on next-20170214] [cannot apply to v4.10-rc8] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Joao-Pinto/add-support-for-multiple-queues-channels-in-stmmac/20170215-024621 config: i386-randconfig-x002-201707 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c: In function 'stmmac_set_pauseparam': drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c:505:6: warning: unused variable 'queue' [-Wunused-variable] u32 queue = 0; ^~~~~ drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c: In function 'stmmac_get_ethtool_stats': >> drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c:546:9: warning: 'j' may >> be used uninitialized in this function [-Wmaybe-uninitialized] int i, j, queue = 0; ^ vim +/j +546 drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c 499 struct ethtool_pauseparam *pause) 500 { 501 struct stmmac_priv *priv = netdev_priv(netdev); 502 u32 tx_queues_count = priv->dma_cap.number_tx_queues; 503 struct phy_device *phy = netdev->phydev; 504 int new_pause = FLOW_OFF; > 505 u32 queue = 0; 506 507 if (priv->hw->pcs && priv->hw->mac->pcs_get_adv_lp) { 508 struct rgmii_adv adv_lp; 509 510 pause->autoneg = 1; 511 priv->hw->mac->pcs_get_adv_lp(priv->ioaddr, &adv_lp); 512 if (!adv_lp.pause) 513 return -EOPNOTSUPP; 514 } else { 515 if (!(phy->supported & SUPPORTED_Pause) || 516 !(phy->supported & SUPPORTED_Asym_Pause)) 517 return -EOPNOTSUPP; 518 } 519 520 if (pause->rx_pause) 521 new_pause |= FLOW_RX; 522 if (pause->tx_pause) 523 new_pause |= FLOW_TX; 524 525 priv->flow_ctrl = new_pause; 526 phy->autoneg = pause->autoneg; 527 528 if (phy->autoneg) { 529 if (netif_running(netdev)) 530 return phy_start_aneg(phy); 531 } 532 533 priv->hw->mac->flow_ctrl(priv->hw, phy->duplex, priv->flow_ctrl, 534 priv->pause, tx_queues_count); 535 536 return 0; 537 } 538 539 static void stmmac_get_ethtool_stats(struct net_device *dev, 540 struct ethtool_stats *dummy, u64 *data) 541 { 542 struct stmmac_priv *priv = netdev_priv(dev); 543 u32 rx_queues_count = priv->dma_cap.number_rx_queues; 544 u32 tx_queues_count = priv->dma_cap.number_tx_queues; 545 u32 queue_count = 0; > 546 int i, j, queue = 0; 547 548 queue_count = (tx_queues_count > rx_queues_count) ? 549 tx_queues_count : rx_queues_count; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
