Am Montag, 19. Februar 2007 15:55 schrieb Jiri Kosina:
> On Thu, 15 Feb 2007, Oliver Neukum wrote:
>
> > To allow testing I am posting the full amalgated patch against 2.6.20.
>
> Is this patch really against 2.6.20?
>
> > +extern int sysfs_add_file_to_group(struct kobject *kobj,
> > + const struct attribute *attr, const char *group);
> > +extern void sysfs_remove_file_from_group(struct kobject *kobj,
> > + const struct attribute *attr, const char *group);
>
> I don't know where do these functions come from, and I am not able to find
> them in v2.6.20. The patch also doesn't define them.
>
> (besides that, putting extern declarations in the middle of a C source
> doesn't look beautiful).
Sorry,
they come from Alan's autopm changes.
Regards
Oliver
----
--- linux-2.6.20/fs/sysfs/file.c 2007-02-06 14:14:52.000000000 +0100
+++ linux-stern/fs/sysfs/file.c 2007-02-15 10:29:18.000000000 +0100
@@ -468,6 +468,30 @@
/**
+ * sysfs_add_file_to_group - add an attribute file to a pre-existing group.
+ * @kobj: object we're acting for.
+ * @attr: attribute descriptor.
+ * @group: group name.
+ */
+int sysfs_add_file_to_group(struct kobject *kobj,
+ const struct attribute *attr, const char *group)
+{
+ struct dentry *dir;
+ int error;
+
+ dir = lookup_one_len(group, kobj->dentry, strlen(group));
+ if (IS_ERR(dir))
+ error = PTR_ERR(dir);
+ else {
+ error = sysfs_add_file(dir, attr, SYSFS_KOBJ_ATTR);
+ dput(dir);
+ }
+ return error;
+}
+EXPORT_SYMBOL_GPL(sysfs_add_file_to_group);
+
+
+/**
* sysfs_update_file - update the modified timestamp on an object attribute.
* @kobj: object we're acting for.
* @attr: attribute descriptor.
@@ -552,6 +576,26 @@
}
+/**
+ * sysfs_remove_file_from_group - remove an attribute file from a group.
+ * @kobj: object we're acting for.
+ * @attr: attribute descriptor.
+ * @group: group name.
+ */
+void sysfs_remove_file_from_group(struct kobject *kobj,
+ const struct attribute *attr, const char *group)
+{
+ struct dentry *dir;
+
+ dir = lookup_one_len(group, kobj->dentry, strlen(group));
+ if (!IS_ERR(dir)) {
+ sysfs_hash_and_remove(dir, attr->name);
+ dput(dir);
+ }
+}
+EXPORT_SYMBOL_GPL(sysfs_remove_file_from_group);
+
+
EXPORT_SYMBOL_GPL(sysfs_create_file);
EXPORT_SYMBOL_GPL(sysfs_remove_file);
EXPORT_SYMBOL_GPL(sysfs_update_file);
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