Re: [PATCH 1/2] [v4] net: emac: emac gigabit ethernet controller driver

From: kbuild test robot
Date: Wed Apr 13 2016 - 15:23:27 EST


Hi Gilad,

[auto build test WARNING on net/master]
[also build test WARNING on v4.6-rc3 next-20160413]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url: https://github.com/0day-ci/linux/commits/Timur-Tabi/net-emac-emac-gigabit-ethernet-controller-driver/20160414-020345
config: x86_64-allmodconfig (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All warnings (new ones prefixed by >>):

drivers/net/ethernet/qualcomm/emac/emac-mac.c: In function 'emac_mac_up':
>> drivers/net/ethernet/qualcomm/emac/emac-mac.c:1076:9: warning: large integer implicitly truncated to unsigned type [-Woverflow]
writel(~DIS_INT, adpt->base + EMAC_INT_STATUS);
^

vim +1076 drivers/net/ethernet/qualcomm/emac/emac-mac.c

1060 return ret;
1061
1062 ret = request_irq(irq->irq, emac_isr, 0, EMAC_MAC_IRQ_RES, irq);
1063 if (ret) {
1064 netdev_err(adpt->netdev,
1065 "error:%d on request_irq(%d:%s flags:0)\n", ret,
1066 irq->irq, EMAC_MAC_IRQ_RES);
1067 emac_sgmii_down(adpt);
1068 return ret;
1069 }
1070
1071 emac_mac_rx_descs_refill(adpt, &adpt->rx_q);
1072
1073 napi_enable(&adpt->rx_q.napi);
1074
1075 /* enable mac irq */
> 1076 writel(~DIS_INT, adpt->base + EMAC_INT_STATUS);
1077 writel(adpt->irq.mask, adpt->base + EMAC_INT_MASK);
1078
1079 netif_start_queue(netdev);
1080 clear_bit(EMAC_STATUS_DOWN, &adpt->status);
1081
1082 /* check link status */
1083 set_bit(EMAC_STATUS_TASK_LSC_REQ, &adpt->status);
1084 adpt->link_chk_timeout = jiffies + EMAC_TRY_LINK_TIMEOUT;

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