netdev - Re: [PATCH V3] net: emac: emac gigabit ethernet controller driver

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Date:	Wed, 30 Dec 2015 12:26:57 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Gilad Avidov <gavidov@...eaurora.org>
Cc:	kbuild-all@...org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, sdharia@...eaurora.org,
	shankerd@...eaurora.org, timur@...eaurora.org,
	gregkh@...uxfoundation.org, vikrams@...eaurora.org,
	cov@...eaurora.org, Gilad Avidov <gavidov@...eaurora.org>
Subject: Re: [PATCH V3] net: emac: emac gigabit ethernet controller driver

Hi Gilad,

[auto build test WARNING on net/master]
[also build test WARNING on v4.4-rc7 next-20151223]
[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/Gilad-Avidov/net-emac-emac-gigabit-ethernet-controller-driver/20151230-095104
config: ia64-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=ia64 

All warnings (new ones prefixed by >>):

   In file included from arch/ia64/include/asm/smp.h:20:0,
                    from include/linux/smp.h:59,
                    from include/linux/topology.h:33,
                    from include/linux/gfp.h:8,
                    from include/linux/slab.h:14,
                    from include/linux/textsearch.h:8,
                    from include/linux/skbuff.h:30,
                    from include/linux/tcp.h:21,
                    from drivers/net/ethernet/qualcomm/emac/emac-mac.c:16:
   drivers/net/ethernet/qualcomm/emac/emac-mac.c: In function 'emac_mac_up':
   arch/ia64/include/asm/io.h:394:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
    #define writel(v,a) __writel((v), (a))
                                 ^
>> drivers/net/ethernet/qualcomm/emac/emac-mac.c:1090:2: note: in expansion of macro 'writel'
     writel(~DIS_INT, adpt->base + EMAC_INT_STATUS);
     ^

vim +/writel +1090 drivers/net/ethernet/qualcomm/emac/emac-mac.c

  1074			}
  1075		}
  1076	
  1077		ret = request_irq(irq->irq, emac_isr, 0, EMAC_MAC_IRQ_RES, irq);
  1078		if (ret) {
  1079			netdev_err(adpt->netdev,
  1080				   "error:%d on request_irq(%d:%s flags:0)\n", ret,
  1081				   irq->irq, EMAC_MAC_IRQ_RES);
  1082			goto err_request_irq;
  1083		}
  1084	
  1085		emac_mac_rx_descs_refill(adpt, &adpt->rx_q);
  1086	
  1087		napi_enable(&adpt->rx_q.napi);
  1088	
  1089		/* enable mac irq */
> 1090		writel(~DIS_INT, adpt->base + EMAC_INT_STATUS);
  1091		writel(adpt->irq.mask, adpt->base + EMAC_INT_MASK);
  1092	
  1093		netif_start_queue(netdev);
  1094		clear_bit(EMAC_STATUS_DOWN, &adpt->status);
  1095	
  1096		/* check link status */
  1097		set_bit(EMAC_STATUS_TASK_LSC_REQ, &adpt->status);
  1098		adpt->link_chk_timeout = jiffies + EMAC_TRY_LINK_TIMEOUT;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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