disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/include/linux/rculist_nulls.h
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@@ -38,9 +38,17 @@
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 	}
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 }
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+/**
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+ * hlist_nulls_first_rcu - returns the first element of the hash list.
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+ * @head: the head of the list.
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+ */
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 #define hlist_nulls_first_rcu(head) \
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 	(*((struct hlist_nulls_node __rcu __force **)&(head)->first))
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+/**
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+ * hlist_nulls_next_rcu - returns the element of the list after @node.
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+ * @node: element of the list.
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+ */
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 #define hlist_nulls_next_rcu(node) \
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 	(*((struct hlist_nulls_node __rcu __force **)&(node)->next))
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@@ -137,17 +145,24 @@
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 	}
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 }
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+/* after that hlist_nulls_del will work */
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+static inline void hlist_nulls_add_fake(struct hlist_nulls_node *n)
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+{
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+	n->pprev = &n->next;
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+	n->next = (struct hlist_nulls_node *)NULLS_MARKER(NULL);
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+}
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+
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 /**
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  * hlist_nulls_for_each_entry_rcu - iterate over rcu list of given type
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  * @tpos:	the type * to use as a loop cursor.
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  * @pos:	the &struct hlist_nulls_node to use as a loop cursor.
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- * @head:	the head for your list.
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+ * @head:	the head of the list.
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  * @member:	the name of the hlist_nulls_node within the struct.
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  *
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  * The barrier() is needed to make sure compiler doesn't cache first element [1],
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  * as this loop can be restarted [2]
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  * [1] Documentation/core-api/atomic_ops.rst around line 114
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- * [2] Documentation/RCU/rculist_nulls.txt around line 146
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+ * [2] Documentation/RCU/rculist_nulls.rst around line 146
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  */
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 #define hlist_nulls_for_each_entry_rcu(tpos, pos, head, member)			\
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 	for (({barrier();}),							\
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@@ -161,7 +176,7 @@
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  *   iterate over list of given type safe against removal of list entry
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  * @tpos:	the type * to use as a loop cursor.
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  * @pos:	the &struct hlist_nulls_node to use as a loop cursor.
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- * @head:	the head for your list.
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+ * @head:	the head of the list.
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  * @member:	the name of the hlist_nulls_node within the struct.
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  */
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 #define hlist_nulls_for_each_entry_safe(tpos, pos, head, member)		\