From 8d2a02b24d66aa359e83eebc1ed3c0f85367a1cb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 16 May 2024 03:11:33 +0000
Subject: [PATCH] AX88772C_eeprom and ax8872c build together
---
kernel/include/linux/if_tun.h | 44 +++++++++++++++++++++++++++++---------------
1 files changed, 29 insertions(+), 15 deletions(-)
diff --git a/kernel/include/linux/if_tun.h b/kernel/include/linux/if_tun.h
index 3d2996d..2a76608 100644
--- a/kernel/include/linux/if_tun.h
+++ b/kernel/include/linux/if_tun.h
@@ -1,30 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Universal TUN/TAP device driver.
* Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#ifndef __IF_TUN_H
#define __IF_TUN_H
#include <uapi/linux/if_tun.h>
+#include <uapi/linux/virtio_net.h>
#define TUN_XDP_FLAG 0x1UL
+
+#define TUN_MSG_UBUF 1
+#define TUN_MSG_PTR 2
+struct tun_msg_ctl {
+ unsigned short type;
+ unsigned short num;
+ void *ptr;
+};
+
+struct tun_xdp_hdr {
+ int buflen;
+ struct virtio_net_hdr gso;
+};
#if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE)
struct socket *tun_get_socket(struct file *);
struct ptr_ring *tun_get_tx_ring(struct file *file);
-bool tun_is_xdp_frame(void *ptr);
-void *tun_xdp_to_ptr(void *ptr);
-void *tun_ptr_to_xdp(void *ptr);
+static inline bool tun_is_xdp_frame(void *ptr)
+{
+ return (unsigned long)ptr & TUN_XDP_FLAG;
+}
+static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
+{
+ return (void *)((unsigned long)xdp | TUN_XDP_FLAG);
+}
+static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
+{
+ return (void *)((unsigned long)ptr & ~TUN_XDP_FLAG);
+}
void tun_ptr_free(void *ptr);
#else
#include <linux/err.h>
@@ -43,11 +57,11 @@
{
return false;
}
-static inline void *tun_xdp_to_ptr(void *ptr)
+static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
{
return NULL;
}
-static inline void *tun_ptr_to_xdp(void *ptr)
+static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
{
return NULL;
}
--
Gitblit v1.6.2