wireless: move sequence number arithmetic to ieee80211.h
Move the sequence number arithmetic code from mac80211 to
ieee80211.h so others can use it. Also rename the functions
from _seq to _sn, they operate on the sequence number, not
the sequence_control field.
Also move macros to convert the sequence control to/from
the sequence number value from various drivers.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 7941eb3..c092fcb 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -2258,7 +2258,7 @@
spin_lock_irqsave(&il->sta_lock, flags);
tid_data = &il->stations[sta_id].tid[tid];
- *ssn = SEQ_TO_SN(tid_data->seq_number);
+ *ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
tid_data->agg.txq_id = txq_id;
il_set_swq_id(&il->txq[txq_id], il4965_get_ac_from_tid(tid), txq_id);
spin_unlock_irqrestore(&il->sta_lock, flags);
@@ -2408,7 +2408,7 @@
/* aggregated HW queue */
if (txq_id == tid_data->agg.txq_id &&
q->read_ptr == q->write_ptr) {
- u16 ssn = SEQ_TO_SN(tid_data->seq_number);
+ u16 ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number);
int tx_fifo = il4965_get_fifo_from_tid(tid);
D_HT("HW queue empty: continue DELBA flow\n");
il4965_txq_agg_disable(il, txq_id, ssn, tx_fifo);
@@ -2627,7 +2627,8 @@
static inline u32
il4965_get_scd_ssn(struct il4965_tx_resp *tx_resp)
{
- return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN;
+ return le32_to_cpup(&tx_resp->u.status +
+ tx_resp->frame_count) & IEEE80211_MAX_SN;
}
static inline u32
@@ -2717,15 +2718,15 @@
hdr = (struct ieee80211_hdr *) skb->data;
sc = le16_to_cpu(hdr->seq_ctrl);
- if (idx != (SEQ_TO_SN(sc) & 0xff)) {
+ if (idx != (IEEE80211_SEQ_TO_SN(sc) & 0xff)) {
IL_ERR("BUG_ON idx doesn't match seq control"
" idx=%d, seq_idx=%d, seq=%d\n", idx,
- SEQ_TO_SN(sc), hdr->seq_ctrl);
+ IEEE80211_SEQ_TO_SN(sc), hdr->seq_ctrl);
return -1;
}
D_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n", i, idx,
- SEQ_TO_SN(sc));
+ IEEE80211_SEQ_TO_SN(sc));
sh = idx - start;
if (sh > 64) {