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D50987.diff
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diff --git a/sys/compat/linuxkpi/common/include/linux/sysfs.h b/sys/compat/linuxkpi/common/include/linux/sysfs.h
--- a/sys/compat/linuxkpi/common/include/linux/sysfs.h
+++ b/sys/compat/linuxkpi/common/include/linux/sysfs.h
@@ -189,6 +189,50 @@
return (0);
}
+static inline struct kobject *
+__sysfs_lookup_group(struct kobject *kobj, const char *group)
+{
+ int found;
+ struct sysctl_oid *group_oidp;
+ struct kobject *group_kobj;
+
+ found = 0;
+ if (group != NULL) {
+ SYSCTL_FOREACH(group_oidp, SYSCTL_CHILDREN(kobj->oidp)) {
+ if (strcmp(group_oidp->oid_name, group) != 0)
+ continue;
+ found = 1;
+ break;
+ }
+ } else {
+ found = 1;
+ group_oidp = kobj->oidp;
+ }
+
+ if (!found)
+ return (NULL);
+
+ group_kobj = group_oidp->oid_arg1;
+
+ return (group_kobj);
+}
+
+static inline int
+sysfs_add_file_to_group(struct kobject *kobj,
+ const struct attribute *attr, const char *group)
+{
+ int ret;
+ struct kobject *group_kobj;
+
+ group_kobj = __sysfs_lookup_group(kobj, group);
+ if (group_kobj == NULL)
+ return (-ENOENT);
+
+ ret = sysfs_create_file(group_kobj, attr);
+
+ return (ret);
+}
+
static inline void
sysfs_remove_file(struct kobject *kobj, const struct attribute *attr)
{
@@ -197,6 +241,19 @@
sysctl_remove_name(kobj->oidp, attr->name, 1, 1);
}
+static inline void
+sysfs_remove_file_from_group(struct kobject *kobj,
+ const struct attribute *attr, const char *group)
+{
+ struct kobject *group_kobj;
+
+ group_kobj = __sysfs_lookup_group(kobj, group);
+ if (group_kobj == NULL)
+ return;
+
+ sysfs_remove_file(group_kobj, attr);
+}
+
static inline int
sysctl_handle_bin_attr(SYSCTL_HANDLER_ARGS)
{
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D50987.diff (1 KB)
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D50987: linuxkpi: Add `sysfs_add_file_to_group()` and `sysfs_remove_file_from_group()`
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