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path: root/drivers/rapidio/rio-sysfs.c
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Diffstat (limited to 'drivers/rapidio/rio-sysfs.c')
-rw-r--r--drivers/rapidio/rio-sysfs.c76
1 files changed, 33 insertions, 43 deletions
diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c
index eda41563d06d..73e4b407f162 100644
--- a/drivers/rapidio/rio-sysfs.c
+++ b/drivers/rapidio/rio-sysfs.c
@@ -108,15 +108,11 @@ static struct attribute *rio_dev_attrs[] = {
&dev_attr_lprev.attr,
&dev_attr_destid.attr,
&dev_attr_modalias.attr,
- NULL,
-};
-static const struct attribute_group rio_dev_group = {
- .attrs = rio_dev_attrs,
-};
-
-const struct attribute_group *rio_dev_groups[] = {
- &rio_dev_group,
+ /* Switch-only attributes */
+ &dev_attr_routes.attr,
+ &dev_attr_lnext.attr,
+ &dev_attr_hopcount.attr,
NULL,
};
@@ -259,46 +255,40 @@ static struct bin_attribute rio_config_attr = {
.write = rio_write_config,
};
-/**
- * rio_create_sysfs_dev_files - create RIO specific sysfs files
- * @rdev: device whose entries should be created
- *
- * Create files when @rdev is added to sysfs.
- */
-int rio_create_sysfs_dev_files(struct rio_dev *rdev)
-{
- int err = 0;
-
- err = device_create_bin_file(&rdev->dev, &rio_config_attr);
+static struct bin_attribute *rio_dev_bin_attrs[] = {
+ &rio_config_attr,
+ NULL,
+};
- if (!err && (rdev->pef & RIO_PEF_SWITCH)) {
- err |= device_create_file(&rdev->dev, &dev_attr_routes);
- err |= device_create_file(&rdev->dev, &dev_attr_lnext);
- err |= device_create_file(&rdev->dev, &dev_attr_hopcount);
+static umode_t rio_dev_is_attr_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct rio_dev *rdev = to_rio_dev(kobj_to_dev(kobj));
+ umode_t mode = attr->mode;
+
+ if (!(rdev->pef & RIO_PEF_SWITCH) &&
+ (attr == &dev_attr_routes.attr ||
+ attr == &dev_attr_lnext.attr ||
+ attr == &dev_attr_hopcount.attr)) {
+ /*
+ * Hide switch-specific attributes for a non-switch device.
+ */
+ mode = 0;
}
- if (err)
- pr_warning("RIO: Failed to create attribute file(s) for %s\n",
- rio_name(rdev));
-
- return err;
+ return mode;
}
-/**
- * rio_remove_sysfs_dev_files - cleanup RIO specific sysfs files
- * @rdev: device whose entries we should free
- *
- * Cleanup when @rdev is removed from sysfs.
- */
-void rio_remove_sysfs_dev_files(struct rio_dev *rdev)
-{
- device_remove_bin_file(&rdev->dev, &rio_config_attr);
- if (rdev->pef & RIO_PEF_SWITCH) {
- device_remove_file(&rdev->dev, &dev_attr_routes);
- device_remove_file(&rdev->dev, &dev_attr_lnext);
- device_remove_file(&rdev->dev, &dev_attr_hopcount);
- }
-}
+static const struct attribute_group rio_dev_group = {
+ .attrs = rio_dev_attrs,
+ .is_visible = rio_dev_is_attr_visible,
+ .bin_attrs = rio_dev_bin_attrs,
+};
+
+const struct attribute_group *rio_dev_groups[] = {
+ &rio_dev_group,
+ NULL,
+};
static ssize_t bus_scan_store(struct bus_type *bus, const char *buf,
size_t count)