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iwlwifi: allocated rx page accounting cleanup

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In iwlwifi, priv->alloc_rxb_page is used to keep track of the Rx
pages allocated by the driver. This cleans up the page free routines
by introducing __iwl_free_pages/iwl_free_pages so that the accounting
is more accurate and less error prone. This also fixes two instances where
the counter was not updated.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Zhu Yi
2009-12-10 14:37:21 -08:00
committed by John W. Linville
parent d24deb2580
commit 64a76b504b
7 changed files with 21 additions and 24 deletions
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8
drivers/net/wireless/iwlwifi/iwl-rx.c
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@@ -345,10 +345,8 @@ void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
PAGE_SIZE << priv->hw_params.rx_page_order,
PCI_DMA_FROMDEVICE);
__free_pages(rxq->pool[i].page,
priv->hw_params.rx_page_order);
__iwl_free_pages(priv, rxq->pool[i].page);
rxq->pool[i].page = NULL;
priv->alloc_rxb_page--;
}
}
@@ -416,9 +414,7 @@ void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
PAGE_SIZE << priv->hw_params.rx_page_order,
PCI_DMA_FROMDEVICE);
priv->alloc_rxb_page--;
__free_pages(rxq->pool[i].page,
priv->hw_params.rx_page_order);
__iwl_free_pages(priv, rxq->pool[i].page);
rxq->pool[i].page = NULL;
}
list_add_tail(&rxq->pool[i].list, &rxq->rx_used);