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iwlegacy: remove unnecessary read of PCI_CAP_ID_EXP

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The PCIE capability offset is saved during PCI bus walking.  It will
remove an unnecessary search in the PCI configuration space if this
value is referenced instead of reacquiring it.

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jon Mason 2011-06-27 12:48:54 -05:00 committed by John W. Linville
parent bfc8dfec45
commit f05b691150
1 changed files with 1 additions and 1 deletions
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drivers/net/wireless/iwlegacy/iwl-core.h
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@ -484,7 +484,7 @@ static inline u16 iwl_legacy_pcie_link_ctl(struct iwl_priv *priv)
{
int pos;
u16 pci_lnk_ctl;
pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(priv->pci_dev);
pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
return pci_lnk_ctl;
}