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-rw-r--r--include/uapi/linux/bpf.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index cba518c57229..72c453a8bf50 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -2203,6 +2203,8 @@ union bpf_attr {
* **CONFIG_NET** configuration option.
* Return
* Pointer to *struct bpf_sock*, or NULL in case of failure.
+ * For sockets with reuseport option, the *struct bpf_sock*
+ * result is from reuse->socks[] using the hash of the tuple.
*
* struct bpf_sock *bpf_sk_lookup_udp(void *ctx, struct bpf_sock_tuple *tuple, u32 tuple_size, u64 netns, u64 flags)
* Description
@@ -2237,6 +2239,8 @@ union bpf_attr {
* **CONFIG_NET** configuration option.
* Return
* Pointer to *struct bpf_sock*, or NULL in case of failure.
+ * For sockets with reuseport option, the *struct bpf_sock*
+ * result is from reuse->socks[] using the hash of the tuple.
*
* int bpf_sk_release(struct bpf_sock *sk)
* Description