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[v3,bpf-next,09/11] bpf: Add bpf_rbtree_{add,remove,first} decls to bpf_experimental.h

Message ID 20230131180016.3368305-10-davemarchevsky@fb.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series BPF rbtree next-gen datastructure | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/apply fail Patch does not apply to bpf-next
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Commit Message

Dave Marchevsky Jan. 31, 2023, 6 p.m. UTC 
These kfuncs will be used by selftests in following patches

Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
---
 .../testing/selftests/bpf/bpf_experimental.h  | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h
index 424f7bbbfe9b..dbd2c729781a 100644
--- a/tools/testing/selftests/bpf/bpf_experimental.h
+++ b/tools/testing/selftests/bpf/bpf_experimental.h
@@ -65,4 +65,28 @@  extern struct bpf_list_node *bpf_list_pop_front(struct bpf_list_head *head) __ks
  */
 extern struct bpf_list_node *bpf_list_pop_back(struct bpf_list_head *head) __ksym;
 
+/* Description
+ *	Remove 'node' from rbtree with root 'root'
+ * Returns
+ * 	Pointer to the removed node, or NULL if 'root' didn't contain 'node'
+ */
+extern struct bpf_rb_node *bpf_rbtree_remove(struct bpf_rb_root *root,
+					     struct bpf_rb_node *node) __ksym;
+
+/* Description
+ *	Add 'node' to rbtree with root 'root' using comparator 'less'
+ * Returns
+ *	Nothing
+ */
+extern void bpf_rbtree_add(struct bpf_rb_root *root, struct bpf_rb_node *node,
+			   bool (less)(struct bpf_rb_node *a, const struct bpf_rb_node *b)) __ksym;
+
+/* Description
+ *	Return the first (leftmost) node in input tree
+ * Returns
+ *	Pointer to the node, which is _not_ removed from the tree. If the tree
+ *	contains no nodes, returns NULL.
+ */
+extern struct bpf_rb_node *bpf_rbtree_first(struct bpf_rb_root *root) __ksym;
+
 #endif