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-rw-r--r--drivers/pci/hotplug/rpadlpar_sysfs.c112
1 files changed, 43 insertions, 69 deletions
diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c
index 5c3ddb60a00..9cde367915b 100644
--- a/drivers/pci/hotplug/rpadlpar_sysfs.c
+++ b/drivers/pci/hotplug/rpadlpar_sysfs.c
@@ -23,44 +23,13 @@
#define MAX_DRC_NAME_LEN 64
-/* Store return code of dlpar operation in attribute struct */
-struct dlpar_io_attr {
- int rc;
- struct attribute attr;
- ssize_t (*store)(struct dlpar_io_attr *dlpar_attr, const char *buf,
- size_t nbytes);
-};
-/* Common show callback for all attrs, display the return code
- * of the dlpar op */
-static ssize_t
-dlpar_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
-{
- struct dlpar_io_attr *dlpar_attr = container_of(attr,
- struct dlpar_io_attr, attr);
- return sprintf(buf, "%d\n", dlpar_attr->rc);
-}
-
-static ssize_t
-dlpar_attr_store(struct kobject * kobj, struct attribute * attr,
- const char *buf, size_t nbytes)
-{
- struct dlpar_io_attr *dlpar_attr = container_of(attr,
- struct dlpar_io_attr, attr);
- return dlpar_attr->store ?
- dlpar_attr->store(dlpar_attr, buf, nbytes) : -EIO;
-}
-
-static struct sysfs_ops dlpar_attr_sysfs_ops = {
- .show = dlpar_attr_show,
- .store = dlpar_attr_store,
-};
-
-static ssize_t add_slot_store(struct dlpar_io_attr *dlpar_attr,
- const char *buf, size_t nbytes)
+static ssize_t add_slot_store(struct kobject *kobj, struct kobj_attribute *attr,
+ const char *buf, size_t nbytes)
{
char drc_name[MAX_DRC_NAME_LEN];
char *end;
+ int rc;
if (nbytes >= MAX_DRC_NAME_LEN)
return 0;
@@ -72,15 +41,25 @@ static ssize_t add_slot_store(struct dlpar_io_attr *dlpar_attr,
end = &drc_name[nbytes];
*end = '\0';
- dlpar_attr->rc = dlpar_add_slot(drc_name);
+ rc = dlpar_add_slot(drc_name);
+ if (rc)
+ return rc;
return nbytes;
}
-static ssize_t remove_slot_store(struct dlpar_io_attr *dlpar_attr,
- const char *buf, size_t nbytes)
+static ssize_t add_slot_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ return sprintf(buf, "0\n");
+}
+
+static ssize_t remove_slot_store(struct kobject *kobj,
+ struct kobj_attribute *attr,
+ const char *buf, size_t nbytes)
{
char drc_name[MAX_DRC_NAME_LEN];
+ int rc;
char *end;
if (nbytes >= MAX_DRC_NAME_LEN)
@@ -93,22 +72,24 @@ static ssize_t remove_slot_store(struct dlpar_io_attr *dlpar_attr,
end = &drc_name[nbytes];
*end = '\0';
- dlpar_attr->rc = dlpar_remove_slot(drc_name);
+ rc = dlpar_remove_slot(drc_name);
+ if (rc)
+ return rc;
return nbytes;
}
-static struct dlpar_io_attr add_slot_attr = {
- .rc = 0,
- .attr = { .name = ADD_SLOT_ATTR_NAME, .mode = 0644, },
- .store = add_slot_store,
-};
+static ssize_t remove_slot_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ return sprintf(buf, "0\n");
+}
-static struct dlpar_io_attr remove_slot_attr = {
- .rc = 0,
- .attr = { .name = REMOVE_SLOT_ATTR_NAME, .mode = 0644},
- .store = remove_slot_store,
-};
+static struct kobj_attribute add_slot_attr =
+ __ATTR(ADD_SLOT_ATTR_NAME, 0644, add_slot_show, add_slot_store);
+
+static struct kobj_attribute remove_slot_attr =
+ __ATTR(REMOVE_SLOT_ATTR_NAME, 0644, remove_slot_show, remove_slot_store);
static struct attribute *default_attrs[] = {
&add_slot_attr.attr,
@@ -116,36 +97,29 @@ static struct attribute *default_attrs[] = {
NULL,
};
-static void dlpar_io_release(struct kobject *kobj)
-{
- /* noop */
- return;
-}
-
-struct kobj_type ktype_dlpar_io = {
- .release = dlpar_io_release,
- .sysfs_ops = &dlpar_attr_sysfs_ops,
- .default_attrs = default_attrs,
+static struct attribute_group dlpar_attr_group = {
+ .attrs = default_attrs,
};
-struct kset dlpar_io_kset = {
- .kobj = {.ktype = &ktype_dlpar_io,
- .parent = &pci_hotplug_slots_kset->kobj},
-};
+static struct kobject *dlpar_kobj;
int dlpar_sysfs_init(void)
{
- kobject_set_name(&dlpar_io_kset.kobj, DLPAR_KOBJ_NAME);
- if (kset_register(&dlpar_io_kset)) {
- printk(KERN_ERR "rpadlpar_io: cannot register kset for %s\n",
- kobject_name(&dlpar_io_kset.kobj));
+ int error;
+
+ dlpar_kobj = kobject_create_and_add(DLPAR_KOBJ_NAME,
+ &pci_hotplug_slots_kset->kobj);
+ if (!dlpar_kobj)
return -EINVAL;
- }
- return 0;
+ error = sysfs_create_group(dlpar_kobj, &dlpar_attr_group);
+ if (error)
+ kobject_unregister(dlpar_kobj);
+ return error;
}
void dlpar_sysfs_exit(void)
{
- kset_unregister(&dlpar_io_kset);
+ sysfs_remove_group(dlpar_kobj, &dlpar_attr_group);
+ kobject_unregister(dlpar_kobj);
}