linux-kernel - Re: [PATCH v3] scsi: xen-scsifront: add error handling for xenbus

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Message-ID: <201806150736.70vMLqsU%fengguang.wu@intel.com>
Date:   Fri, 15 Jun 2018 07:50:44 +0800
From:   kbuild test robot <lkp@...el.com>
To:     linux-scsi-owner@...r.kernel.org
Cc:     kbuild-all@...org, Zhouyang Jia <jiazhouyang09@...il.com>,
        Juergen Gross <jgross@...e.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        xen-devel@...ts.xenproject.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] scsi: xen-scsifront: add error handling for
 xenbus_printf

Hi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on xen-tip/linux-next]
[also build test ERROR on v4.17 next-20180614]
[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/linux-scsi-owner-vger-kernel-org/scsi-xen-scsifront-add-error-handling-for-xenbus_printf/20180615-070404
base:   https://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git linux-next
config: i386-randconfig-x010-201823 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/scsi/xen-scsifront.c: In function 'scsifront_sdev_configure':
>> drivers/scsi/xen-scsifront.c:663:21: error: passing argument 1 of 'xenbus_dev_error' from incompatible pointer type [-Werror=incompatible-pointer-types]
       xenbus_dev_error(&info->dev->dev, err,
                        ^
   In file included from drivers/scsi/xen-scsifront.c:50:0:
   include/xen/xenbus.h:224:6: note: expected 'struct xenbus_device *' but argument is of type 'struct device *'
    void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...);
         ^~~~~~~~~~~~~~~~
   drivers/scsi/xen-scsifront.c: In function 'scsifront_sdev_destroy':
   drivers/scsi/xen-scsifront.c:681:21: error: passing argument 1 of 'xenbus_dev_error' from incompatible pointer type [-Werror=incompatible-pointer-types]
       xenbus_dev_error(&info->dev->dev, err,
                        ^
   In file included from drivers/scsi/xen-scsifront.c:50:0:
   include/xen/xenbus.h:224:6: note: expected 'struct xenbus_device *' but argument is of type 'struct device *'
    void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...);
         ^~~~~~~~~~~~~~~~
   drivers/scsi/xen-scsifront.c: In function 'scsifront_do_lun_hotplug':
   drivers/scsi/xen-scsifront.c:1022:23: error: passing argument 1 of 'xenbus_dev_error' from incompatible pointer type [-Werror=incompatible-pointer-types]
         xenbus_dev_error(&dev->dev, err,
                          ^
   In file included from drivers/scsi/xen-scsifront.c:50:0:
   include/xen/xenbus.h:224:6: note: expected 'struct xenbus_device *' but argument is of type 'struct device *'
    void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...);
         ^~~~~~~~~~~~~~~~
   drivers/scsi/xen-scsifront.c:1042:23: error: passing argument 1 of 'xenbus_dev_error' from incompatible pointer type [-Werror=incompatible-pointer-types]
         xenbus_dev_error(&dev->dev, err,
                          ^
   In file included from drivers/scsi/xen-scsifront.c:50:0:
   include/xen/xenbus.h:224:6: note: expected 'struct xenbus_device *' but argument is of type 'struct device *'
    void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...);
         ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/xenbus_dev_error +663 drivers/scsi/xen-scsifront.c

   653	
   654	static int scsifront_sdev_configure(struct scsi_device *sdev)
   655	{
   656		struct vscsifrnt_info *info = shost_priv(sdev->host);
   657		int err;
   658	
   659		if (info && current == info->curr) {
   660			err = xenbus_printf(XBT_NIL, info->dev->nodename,
   661				      info->dev_state_path, "%d", XenbusStateConnected);
   662			if (err) {
 > 663				xenbus_dev_error(&info->dev->dev, err,
   664					"%s: writing dev_state_path", __func__);
   665				return err;
   666			}
   667		}
   668	
   669		return 0;
   670	}
   671	

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