1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
| // SPDX-License-Identifier: GPL-2.0-only
| /*
| * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
| */
|
| #include "mt7601u.h"
|
| void mt76_remove_hdr_pad(struct sk_buff *skb)
| {
| int len = ieee80211_get_hdrlen_from_skb(skb);
|
| memmove(skb->data + 2, skb->data, len);
| skb_pull(skb, 2);
| }
|
| int mt76_insert_hdr_pad(struct sk_buff *skb)
| {
| int len = ieee80211_get_hdrlen_from_skb(skb);
| int ret;
|
| if (len % 4 == 0)
| return 0;
|
| ret = skb_cow(skb, 2);
| if (ret)
| return ret;
|
| skb_push(skb, 2);
| memmove(skb->data, skb->data + 2, len);
|
| skb->data[len] = 0;
| skb->data[len + 1] = 0;
| return 0;
| }
|
|
