disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/include/linux/rculist_bl.h
..
..
@@ -25,34 +25,6 @@
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 }
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 /**
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- * hlist_bl_del_init_rcu - deletes entry from hash list with re-initialization
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- * @n: the element to delete from the hash list.
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- *
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- * Note: hlist_bl_unhashed() on the node returns true after this. It is
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- * useful for RCU based read lockfree traversal if the writer side
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- * must know if the list entry is still hashed or already unhashed.
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- *
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- * In particular, it means that we can not poison the forward pointers
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- * that may still be used for walking the hash list and we can only
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- * zero the pprev pointer so list_unhashed() will return true after
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- * this.
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- *
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- * The caller must take whatever precautions are necessary (such as
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- * holding appropriate locks) to avoid racing with another
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- * list-mutation primitive, such as hlist_bl_add_head_rcu() or
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- * hlist_bl_del_rcu(), running on this same list.  However, it is
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- * perfectly legal to run concurrently with the _rcu list-traversal
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- * primitives, such as hlist_bl_for_each_entry_rcu().
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- */
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-static inline void hlist_bl_del_init_rcu(struct hlist_bl_node *n)
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-{
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-	if (!hlist_bl_unhashed(n)) {
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-		__hlist_bl_del(n);
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-		n->pprev = NULL;
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-	}
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-}
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-
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-/**
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  * hlist_bl_del_rcu - deletes entry from hash list without re-initialization
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  * @n: the element to delete from the hash list.
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  *