From patchwork Mon Jun 27 17:44:01 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [09/19] igb: remove unnecessary reads of PCI_CAP_ID_EXP Date: Mon, 27 Jun 2011 07:44:01 -0000 From: Jon Mason X-Patchwork-Id: 102233 Message-Id: <1309196641-16003-1-git-send-email-jdmason@kudzu.us> To: Jeff Kirsher Cc: e1000-devel@lists.sourceforge.net, netdev@vger.kernel.org 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 --- drivers/net/igb/igb_main.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 6e67258..d6c4bd8 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -6267,7 +6267,7 @@ s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) struct igb_adapter *adapter = hw->back; u16 cap_offset; - cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); + cap_offset = adapter->pdev->pcie_cap; if (!cap_offset) return -E1000_ERR_CONFIG; @@ -6281,7 +6281,7 @@ s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value) struct igb_adapter *adapter = hw->back; u16 cap_offset; - cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); + cap_offset = adapter->pdev->pcie_cap; if (!cap_offset) return -E1000_ERR_CONFIG;