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Commit f05b6911 authored by Jon Mason's avatar Jon Mason Committed by John W. Linville
Browse files

iwlegacy: remove unnecessary read of PCI_CAP_ID_EXP 



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: default avatarJon Mason <jdmason@kudzu.us>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent bfc8dfec

drivers/net/wireless/iwlegacy/iwl-core.h

+1 −1
Original line number Diff line number Diff line
@@ -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;

}