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authorVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>2013-04-18 14:33:52 +0300
committerJohn W. Linville <linville@tuxdriver.com>2013-04-22 15:20:25 -0400
commit4de41bef3e075dbc787f7c53b3562f23295f1d6d (patch)
treeb9c0e114e5bc8ec0eed5ac64912511ea339cdd59 /drivers
parentb5d98e9d02091713f8fe5bed92773fcea862a8c2 (diff)
wil6210: Use cached copy of Tx descriptor
Original Tx descriptor stored is in non-cached area for DMA; copy it to the cached memory to speed-up access Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/ath/wil6210/txrx.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 3d9afc560246..91454a4ec8bf 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -789,9 +789,14 @@ void wil_tx_complete(struct wil6210_priv *wil, int ringid)
wil_dbg_txrx(wil, "%s(%d)\n", __func__, ringid);
while (!wil_vring_is_empty(vring)) {
- volatile struct vring_tx_desc *d = &vring->va[vring->swtail].tx;
+ volatile struct vring_tx_desc *d1 =
+ &vring->va[vring->swtail].tx;
+ struct vring_tx_desc dd, *d = &dd;
dma_addr_t pa;
struct sk_buff *skb;
+
+ dd = *d1;
+
if (!(d->dma.status & TX_DMA_STATUS_DU))
break;