The patch titled
ath5k: fix dma operation
has been added to the -mm tree. Its filename is
ath5k-fix-dma-operation.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ath5k: fix dma operation
From: Jiri Slaby <jirislaby@xxxxxxxxx>
Don't sync
- coherent mapping (descriptors)
- before unmap, it's useless
- (wrongly anyway -- for_cpu) beacon skb, it's just mapped,
so by the device yet
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Cc: Nick Kossifidis <mickflemm@xxxxxxxxx>
Cc: Luis R. Rodriguez <mcgrof@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath5k/base.c | 11 -----------
1 file changed, 11 deletions(-)
diff -puN drivers/net/wireless/ath5k/base.c~ath5k-fix-dma-operation drivers/net/wireless/ath5k/base.c
--- a/drivers/net/wireless/ath5k/base.c~ath5k-fix-dma-operation
+++ a/drivers/net/wireless/ath5k/base.c
@@ -1704,10 +1704,6 @@ ath5k_tasklet_rx(unsigned long data)
skb = bf->skb;
ds = bf->desc;
- /* TODO only one segment */
- pci_dma_sync_single_for_cpu(sc->pdev, sc->desc_daddr,
- sc->desc_len, PCI_DMA_FROMDEVICE);
-
/*
* last buffer must not be freed to ensure proper hardware
* function. When the hardware finishes also a packet next to
@@ -1771,8 +1767,6 @@ ath5k_tasklet_rx(unsigned long data)
goto next;
}
accept:
- pci_dma_sync_single_for_cpu(sc->pdev, bf->skbaddr,
- rs.rs_datalen, PCI_DMA_FROMDEVICE);
pci_unmap_single(sc->pdev, bf->skbaddr, sc->rxbufsize,
PCI_DMA_FROMDEVICE);
bf->skb = NULL;
@@ -1860,9 +1854,6 @@ ath5k_tx_processq(struct ath5k_softc *sc
list_for_each_entry_safe(bf, bf0, &txq->q, list) {
ds = bf->desc;
- /* TODO only one segment */
- pci_dma_sync_single_for_cpu(sc->pdev, sc->desc_daddr,
- sc->desc_len, PCI_DMA_FROMDEVICE);
ret = sc->ah->ah_proc_tx_desc(sc->ah, ds, &ts);
if (unlikely(ret == -EINPROGRESS))
break;
@@ -2035,8 +2026,6 @@ ath5k_beacon_send(struct ath5k_softc *sc
ATH5K_WARN(sc, "beacon queue %u didn't stop?\n", sc->bhalq);
/* NB: hw still stops DMA, so proceed */
}
- pci_dma_sync_single_for_cpu(sc->pdev, bf->skbaddr, bf->skb->len,
- PCI_DMA_TODEVICE);
ath5k_hw_put_tx_buf(ah, sc->bhalq, bf->daddr);
ath5k_hw_tx_start(ah, sc->bhalq);
_
Patches currently in -mm which might be from jirislaby@xxxxxxxxx are
origin.patch
linux-next.patch
ath5k-fix-memory-corruption.patch
ath5k-kill-tasklets-on-shutdown.patch
ath5k-flush-work.patch
ath5k-fix-dma-operation.patch
ath5k-suspend-resume-fixes.patch
add-a-warn-macro-this-is-warn_on-printk-arguments.patch
serial-z85c30-avoid-a-hang-at-console-switch-over.patch
serial-dz11-avoid-a-hang-at-console-switch-over.patch
vt-hold-console_sem-across-sysfs-operations.patch
ip2-push-bkl-down-for-the-firmware-interface.patch
rio-push-down-the-bkl-into-the-firmware-ioctl-handler.patch
sx-push-bkl-down-into-the-firmware-ioctl-handler.patch
ppdev-wrap-ioctl-handler-in-driver-and-push-lock-down.patch
dsp56k-bkl-pushdown.patch
char-mxser-ioctl-cleanup.patch
char-mxser-globals-cleanup.patch
char-mxser-update-documentation.patch
char-mxser-prints-cleanup.patch
char-mxser-remove-predefined-isa-support.patch
char-mxser-various-cleanups.patch
char-isicom-enable-disable-pci-device.patch
ip2-fix-iielliscleanup-as-it-is-static-but-not-always-used.patch
stallion-fix-the-istallion-drivers-putchar-and-break_ctl-ops.patch
drivers-misc-phantom-note-pci.patch
reiser4.patch
shrink_slab-handle-bad-shrinkers.patch
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