From: Jon Mason Date: Mon, 27 Jun 2011 07:48:11 +0000 (+0000) Subject: vxge: remove unnecessary reads of PCI_CAP_ID_EXP X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=95cab7386bef62f8c7535d4726573ce230778e7b;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git vxge: remove unnecessary reads 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: Jon Mason Signed-off-by: David S. Miller --- diff --git a/drivers/net/vxge/vxge-config.c b/drivers/net/vxge/vxge-config.c index 857618afa147..1520c574cb20 100644 --- a/drivers/net/vxge/vxge-config.c +++ b/drivers/net/vxge/vxge-config.c @@ -753,12 +753,11 @@ static void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev) static enum vxge_hw_status __vxge_hw_verify_pci_e_info(struct __vxge_hw_device *hldev) { - int exp_cap; + struct pci_dev *dev = hldev->pdev; u16 lnk; /* Get the negotiated link width and speed from PCI config space */ - exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP); - pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk); + pci_read_config_word(dev, dev->pcie_cap + PCI_EXP_LNKSTA, &lnk); if ((lnk & PCI_EXP_LNKSTA_CLS) != 1) return VXGE_HW_ERR_INVALID_PCI_INFO; @@ -1982,13 +1981,11 @@ exit: u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *hldev) { - int link_width, exp_cap; + struct pci_dev *dev = hldev->pdev; u16 lnk; - exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP); - pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk); - link_width = (lnk & VXGE_HW_PCI_EXP_LNKCAP_LNK_WIDTH) >> 4; - return link_width; + pci_read_config_word(dev, dev->pcie_cap + PCI_EXP_LNKSTA, &lnk); + return (lnk & VXGE_HW_PCI_EXP_LNKCAP_LNK_WIDTH) >> 4; } /*