1 /* 2 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 3 * Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 7 * as published by the Free Software Foundation 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 */ 14 15 #ifndef __MT76_UTIL_H 16 #define __MT76_UTIL_H 17 18 #include <linux/skbuff.h> 19 #include <linux/bitops.h> 20 #include <linux/bitfield.h> 21 22 #define MT76_INCR(_var, _size) \ 23 _var = (((_var) + 1) % _size) 24 25 int mt76_wcid_alloc(unsigned long *mask, int size); 26 27 static inline void 28 mt76_wcid_free(unsigned long *mask, int idx) 29 { 30 mask[idx / BITS_PER_LONG] &= ~BIT(idx % BITS_PER_LONG); 31 } 32 33 static inline void 34 mt76_skb_set_moredata(struct sk_buff *skb, bool enable) 35 { 36 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; 37 38 if (enable) 39 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA); 40 else 41 hdr->frame_control &= ~cpu_to_le16(IEEE80211_FCTL_MOREDATA); 42 } 43 44 #endif 45