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SubjectRe: [PATCH v3] scsi: xen-scsifront: add error handling for xenbus_printf
Hi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on xen-tip/linux-next]
[also build test WARNING 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-sb0-06140922 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All warnings (new ones prefixed by >>):

drivers//scsi/xen-scsifront.c: In function 'scsifront_sdev_configure':
>> drivers//scsi/xen-scsifront.c:663:21: warning: passing argument 1 of 'xenbus_dev_error' from incompatible pointer type
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: warning: passing argument 1 of 'xenbus_dev_error' from incompatible pointer type
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: warning: passing argument 1 of 'xenbus_dev_error' from incompatible pointer type
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: warning: passing argument 1 of 'xenbus_dev_error' from incompatible pointer type
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, ...);
^

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

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