diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2007-06-01 18:25:33 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2007-06-01 18:25:33 +0000 |
| commit | 1b2efe2b95d1a3096fe9e6d69958183bbcc2a5af (patch) | |
| tree | 0165595c30e4d3aeb42d3f9328e11fd9fdb7b7ad | |
| parent | f5a01c755684fd6707fab20c208c68c7a3760f95 (diff) | |
| download | upstream-1b2efe2b95d1a3096fe9e6d69958183bbcc2a5af.tar.gz upstream-1b2efe2b95d1a3096fe9e6d69958183bbcc2a5af.tar.bz2 upstream-1b2efe2b95d1a3096fe9e6d69958183bbcc2a5af.zip | |
minor locking change
SVN-Revision: 7436
| -rw-r--r-- | package/madwifi/patches/301-tx_locking.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/package/madwifi/patches/301-tx_locking.patch b/package/madwifi/patches/301-tx_locking.patch new file mode 100644 index 0000000000..884035dd10 --- /dev/null +++ b/package/madwifi/patches/301-tx_locking.patch @@ -0,0 +1,67 @@ +diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c +--- madwifi.old/ath/if_ath.c 2007-06-01 16:44:25.170898128 +0200 ++++ madwifi.dev/ath/if_ath.c 2007-06-01 20:01:24.205131816 +0200 +@@ -2555,7 +2555,7 @@ + /* NB: use this lock to protect an->an_ff_txbuf 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]; +@@ -2563,6 +2563,7 @@ + /* 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 +@@ -2585,7 +2586,7 @@ + */ + 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, +@@ -2597,8 +2598,7 @@ + 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 0; + } +@@ -2650,12 +2650,12 @@ + + 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_bypass: + +diff -ur madwifi.old/ath/if_athvar.h madwifi.dev/ath/if_athvar.h +--- madwifi.old/ath/if_athvar.h 2007-06-01 16:44:25.149901320 +0200 ++++ madwifi.dev/ath/if_athvar.h 2007-06-01 20:00:06.916881416 +0200 +@@ -484,6 +484,8 @@ + #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); + |