diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt7601u/util.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt7601u/util.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt7601u/util.c b/drivers/net/wireless/mediatek/mt7601u/util.c new file mode 100644 index 000000000..050c2dd9d --- /dev/null +++ b/drivers/net/wireless/mediatek/mt7601u/util.c @@ -0,0 +1,34 @@ +// 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; +} |