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

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Message-ID: <201604141153.y1r3akRD%fengguang.wu@intel.com>
Date:	Thu, 14 Apr 2016 11:27:52 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Timur Tabi <timur@...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,
	Shanker Donthineni <shankerd@...eaurora.org>,
	Greg Kroah-Hartman <greg@...ah.com>, vikrams@...eaurora.org,
	cov@...eaurora.org, gavidov@...eaurora.org,
	Rob Herring <robh+dt@...nel.org>, andrew@...n.ch,
	bjorn.andersson@...aro.org, Mark Langsdorf <mlangsdo@...hat.com>,
	Jon Masters <jcm@...hat.com>,
	Andy Gross <agross@...eaurora.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH 1/2] [v4] net: emac: emac gigabit ethernet controller
 driver

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: 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:395:30: warning: large integer implicitly truncated to unsigned type [-Woverflow]
    #define writel(v,a) __writel((v), (a))
                                 ^
>> drivers/net/ethernet/qualcomm/emac/emac-mac.c:1076:2: note: in expansion of macro 'writel'
     writel(~DIS_INT, adpt->base + EMAC_INT_STATUS);
     ^

vim +/writel +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;

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

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