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Re: [Xen-devel] [PATCH 10/11] xenbus: convert bus code to use dev_groups



On 10/07/2013 02:55 AM, Greg Kroah-Hartman wrote:
The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the xenbus code to use the
correct field.

Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Cc: David Vrabel <david.vrabel@xxxxxxxxxx>
Cc: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---

Konrad, I can take this through my driver-core tree if you like, just
let me know what would be the easiest for you.

Konrad is likely out this (and possibly next) week but given that you
are taking a bunch of these patches it make sense that you take this one
as well.

(and just in case I gave it a quick test and it looked good).

-boris



  drivers/xen/xenbus/xenbus_probe.c          | 24 ++++++++++++++++++------
  drivers/xen/xenbus/xenbus_probe.h          |  2 +-
  drivers/xen/xenbus/xenbus_probe_backend.c  |  2 +-
  drivers/xen/xenbus/xenbus_probe_frontend.c |  2 +-
  4 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/drivers/xen/xenbus/xenbus_probe.c 
b/drivers/xen/xenbus/xenbus_probe.c
index 38e92b7..3c0a74b 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -384,12 +384,14 @@ static ssize_t nodename_show(struct device *dev,
  {
        return sprintf(buf, "%s\n", to_xenbus_device(dev)->nodename);
  }
+static DEVICE_ATTR_RO(nodename);
static ssize_t devtype_show(struct device *dev,
                            struct device_attribute *attr, char *buf)
  {
        return sprintf(buf, "%s\n", to_xenbus_device(dev)->devicetype);
  }
+static DEVICE_ATTR_RO(devtype);
static ssize_t modalias_show(struct device *dev,
                             struct device_attribute *attr, char *buf)
@@ -397,14 +399,24 @@ static ssize_t modalias_show(struct device *dev,
        return sprintf(buf, "%s:%s\n", dev->bus->name,
                       to_xenbus_device(dev)->devicetype);
  }
+static DEVICE_ATTR_RO(modalias);
-struct device_attribute xenbus_dev_attrs[] = {
-       __ATTR_RO(nodename),
-       __ATTR_RO(devtype),
-       __ATTR_RO(modalias),
-       __ATTR_NULL
+static struct attribute *xenbus_dev_attrs[] = {
+       &dev_attr_nodename.attr,
+       &dev_attr_devtype.attr,
+       &dev_attr_modalias.attr,
+       NULL,
  };
-EXPORT_SYMBOL_GPL(xenbus_dev_attrs);
+
+static const struct attribute_group xenbus_dev_group = {
+       .attrs = xenbus_dev_attrs,
+};
+
+const struct attribute_group *xenbus_dev_groups[] = {
+       &xenbus_dev_group,
+       NULL,
+};
+EXPORT_SYMBOL_GPL(xenbus_dev_groups);
int xenbus_probe_node(struct xen_bus_type *bus,
                      const char *type,
diff --git a/drivers/xen/xenbus/xenbus_probe.h 
b/drivers/xen/xenbus/xenbus_probe.h
index 146f857..1085ec2 100644
--- a/drivers/xen/xenbus/xenbus_probe.h
+++ b/drivers/xen/xenbus/xenbus_probe.h
@@ -54,7 +54,7 @@ enum xenstore_init {
        XS_LOCAL,
  };
-extern struct device_attribute xenbus_dev_attrs[];
+extern const struct attribute_group *xenbus_dev_groups[];
extern int xenbus_match(struct device *_dev, struct device_driver *_drv);
  extern int xenbus_dev_probe(struct device *_dev);
diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c 
b/drivers/xen/xenbus/xenbus_probe_backend.c
index 998bbba..5125dce 100644
--- a/drivers/xen/xenbus/xenbus_probe_backend.c
+++ b/drivers/xen/xenbus/xenbus_probe_backend.c
@@ -200,7 +200,7 @@ static struct xen_bus_type xenbus_backend = {
                .probe          = xenbus_dev_probe,
                .remove         = xenbus_dev_remove,
                .shutdown       = xenbus_dev_shutdown,
-               .dev_attrs      = xenbus_dev_attrs,
+               .dev_groups     = xenbus_dev_groups,
        },
  };
diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c
index 34b20bf..129bf84 100644
--- a/drivers/xen/xenbus/xenbus_probe_frontend.c
+++ b/drivers/xen/xenbus/xenbus_probe_frontend.c
@@ -154,7 +154,7 @@ static struct xen_bus_type xenbus_frontend = {
                .probe          = xenbus_frontend_dev_probe,
                .remove         = xenbus_dev_remove,
                .shutdown       = xenbus_dev_shutdown,
-               .dev_attrs      = xenbus_dev_attrs,
+               .dev_groups     = xenbus_dev_groups,
.pm = &xenbus_pm_ops,
        },


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