sctp: use list_is_singular in sctp_list_single_entry

geliangtang · davem330 · commit 6fc3e68f5b35 · 2020-06-28T21:45:58.000-07:00
Use list_is_singular() instead of open-coding.

Signed-off-by: Geliang Tang &lt;geliangtang@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
@@ -412,7 +412,7 @@ static inline void sctp_skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
 /* Tests if the list has one and only one entry. */
 static inline int sctp_list_single_entry(struct list_head *head)
 {
-	return (head->next != head) && (head->next == head->prev);
+	return list_is_singular(head);
 }
 
 static inline bool sctp_chunk_pending(const struct sctp_chunk *chunk)

Original file line number	Diff line number	Diff line change
`@@ -412,7 +412,7 @@ static inline void sctp_skb_set_owner_r(struct sk_buff skb, struct sock sk)`
`412`	`412`	`/* Tests if the list has one and only one entry. */`
`413`	`413`	`static inline int sctp_list_single_entry(struct list_head *head)`
`414`	`414`	`{`
`415`		`- return (head->next != head) && (head->next == head->prev);`
	`415`	`+ return list_is_singular(head);`
`416`	`416`	`}`
`417`	`417`
`418`	`418`	`static inline bool sctp_chunk_pending(const struct sctp_chunk *chunk)`