Merge tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipgrafted

Pull futex fix from Ingo Molnar:

 - Also allocate a default private futex hash on vfork() as well, to
   avoid races with (private) futex waiters (Peter Zijlstra)

* tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Also allocate private hash on vfork()

1 files changed, 26 insertions, 0 deletions

diff --git a/include/net/datalink.h b/include/net/datalink.h
new file mode 100644
index 000000000..6c529a40e
--- /dev/null
+++ b/include/net/datalink.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _NET_INET_DATALINK_H_
+#define _NET_INET_DATALINK_H_
+
+#include <linux/list.h>
+
+struct llc_sap;
+struct net_device;
+struct packet_type;
+struct sk_buff;
+
+struct datalink_proto {
+        unsigned char   type[8];
+
+	struct llc_sap   *sap;
+
+        unsigned short  header_length;
+
+        int     (*rcvfunc)(struct sk_buff *, struct net_device *,
+                                struct packet_type *, struct net_device *);
+	int     (*request)(struct datalink_proto *, struct sk_buff *,
+			   const unsigned char *);
+	struct list_head node;
+};
+
+#endif