remove madwifi tx locking patch - i don't trust it

SVN-Revision: 9580

package/madwifi/patches/301-tx_locking.patch

@@ -1,77 +0,0 @@
-Index: madwifi-ng-r2834-20071106/ath/if_ath.c
-===================================================================
---- madwifi-ng-r2834-20071106.orig/ath/if_ath.c	2007-11-07 14:02:04.865648150 +0100
-+++ madwifi-ng-r2834-20071106/ath/if_ath.c	2007-11-07 14:02:05.117662515 +0100
-@@ -2693,7 +2693,7 @@
- 	/* NB: use this lock to protect an->an_tx_ffbuf (and txq->axq_stageq)
- 	 *	in athff_can_aggregate() call too.
- 	 */
--	ATH_TXQ_LOCK_IRQ(txq);
-+	ATH_TXQ_LOCK_BH(txq);
- 	if (athff_can_aggregate(sc, eh, an, skb, vap->iv_fragthreshold, &ff_flush)) {
- 		if (an->an_tx_ffbuf[skb->priority]) { /* i.e., frame on the staging queue */
- 			bf = an->an_tx_ffbuf[skb->priority];
-@@ -2701,6 +2701,7 @@
- 			/* get (and remove) the frame from staging queue */
- 			TAILQ_REMOVE(&txq->axq_stageq, bf, bf_stagelist);
- 			an->an_tx_ffbuf[skb->priority] = NULL;
-+			ATH_TXQ_UNLOCK_BH(txq);
- 
- 			/*
- 			 * chain skbs and add FF magic
-@@ -2723,7 +2724,7 @@
- 			 */
- 			ATH_HARDSTART_GET_TX_BUF_WITH_LOCK;
- 			if (bf == NULL) {
--				ATH_TXQ_UNLOCK_IRQ_EARLY(txq);
-+				ATH_TXQ_UNLOCK_BH(txq);
- 				goto hardstart_fail;
- 			}
- 			DPRINTF(sc, ATH_DEBUG_XMIT | ATH_DEBUG_FF,
-@@ -2735,8 +2736,7 @@
- 			an->an_tx_ffbuf[skb->priority] = bf;
- 
- 			TAILQ_INSERT_HEAD(&txq->axq_stageq, bf, bf_stagelist);
--
--			ATH_TXQ_UNLOCK_IRQ_EARLY(txq);
-+			ATH_TXQ_UNLOCK_BH(txq);
- 
- 			return NETDEV_TX_OK;
- 		}
-@@ -2749,7 +2749,7 @@
- 			an->an_tx_ffbuf[skb->priority] = NULL;
- 
- 			/* NB: ath_tx_start -> ath_tx_txqaddbuf uses ATH_TXQ_LOCK too */
--			ATH_TXQ_UNLOCK_IRQ_EARLY(txq);
-+			ATH_TXQ_UNLOCK_BH(txq);
- 
- 			/* encap and xmit */
- 			bf_ff->bf_skb = ieee80211_encap(ni, bf_ff->bf_skb, &framecnt);
-@@ -2798,12 +2798,12 @@
- 
- 		ATH_HARDSTART_GET_TX_BUF_WITH_LOCK;
- 		if (bf == NULL) {
--			ATH_TXQ_UNLOCK_IRQ_EARLY(txq);
-+			ATH_TXQ_UNLOCK_BH(txq);
- 			goto hardstart_fail;
- 		}
-+		ATH_TXQ_UNLOCK_BH(txq);
- 	}
- 
--	ATH_TXQ_UNLOCK_IRQ(txq);
- 
- ff_flush_done:
- ff_bypass:
-Index: madwifi-ng-r2834-20071106/ath/if_athvar.h
-===================================================================
---- madwifi-ng-r2834-20071106.orig/ath/if_athvar.h	2007-11-07 14:02:04.865648150 +0100
-+++ madwifi-ng-r2834-20071106/ath/if_athvar.h	2007-11-07 14:02:05.117662515 +0100
-@@ -504,6 +504,8 @@
- #define ATH_TXQ_INTR_PERIOD		5  /* axq_intrcnt period for intr gen */
- #define	ATH_TXQ_LOCK_INIT(_tq)		spin_lock_init(&(_tq)->axq_lock)
- #define	ATH_TXQ_LOCK_DESTROY(_tq)
-+#define ATH_TXQ_LOCK_BH(_tq)		spin_lock_bh(&(_tq)->axq_lock);
-+#define ATH_TXQ_UNLOCK_BH(_tq)		spin_unlock_bh(&(_tq)->axq_lock);
- #define ATH_TXQ_LOCK_IRQ(_tq)		do {				\
- 	unsigned long __axq_lockflags;					\
- 	spin_lock_irqsave(&(_tq)->axq_lock, __axq_lockflags);