Re: [Xen-devel] [PATCH v4] scsi: xen-scsifront: add error handling for xenbus_printf

[kbuild test robot <lkp@xxxxxxxxx>]

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-20180615]
[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-kernel-owner-vger-kernel-org/scsi-xen-scsifront-add-error-handling-for-xenbus_printf/20180615-094919
base:   https://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git linux-next
config: x86_64-fedora-25 (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=x86_64 

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, 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 xenbus_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, 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 xenbus_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, err,
   664                                  "%s: writing dev_state_path", __func__);
   665                          return err;
   666                  }
   667          }
   668  
   669          return 0;
   670  }
   671  

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

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