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-rw-r--r--include/net/sock.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 29e48a6d1ded..28f734601b50 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -660,6 +660,20 @@ static inline void sk_add_bind_node(struct sock *sk,
#define sk_for_each_bound(__sk, list) \
hlist_for_each_entry(__sk, list, sk_bind_node)
+/**
+ * sk_nulls_for_each_entry_offset - iterate over a list at a given struct offset
+ * @tpos: the type * to use as a loop cursor.
+ * @pos: the &struct hlist_node to use as a loop cursor.
+ * @head: the head for your list.
+ * @offset: offset of hlist_node within the struct.
+ *
+ */
+#define sk_nulls_for_each_entry_offset(tpos, pos, head, offset) \
+ for (pos = (head)->first; \
+ (!is_a_nulls(pos)) && \
+ ({ tpos = (typeof(*tpos) *)((void *)pos - offset); 1;}); \
+ pos = pos->next)
+
static inline struct user_namespace *sk_user_ns(struct sock *sk)
{
/* Careful only use this in a context where these parameters