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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2009-11-11 14:32:42 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-11-24 15:25:13 -0800 |
| commit | dba90dfe48e2e00e79a15c95940730b6926ee176 (patch) | |
| tree | af32687abec213653a6432842a8962adcf3a9e8c /drivers/pci/pcie | |
| parent | 39a53062cb5b2ceca6035f3ed67317672f0bcf3b (diff) | |
| download | kernel_samsung_smdk4412-dba90dfe48e2e00e79a15c95940730b6926ee176.zip kernel_samsung_smdk4412-dba90dfe48e2e00e79a15c95940730b6926ee176.tar.gz kernel_samsung_smdk4412-dba90dfe48e2e00e79a15c95940730b6926ee176.tar.bz2 | |
PCIe port bus: use pci_pcie_cap()
Use pci_pcie_cap() instead of pci_find_capability() to get PCIe capability
offset in PCI Express Port Bus driver. This avoids unnecessary serarch
in PCI configuration space.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 52f84fc..ce99c71 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -108,7 +108,7 @@ static int pcie_port_enable_msix(struct pci_dev *dev, int *vectors, int mask) * the value in this field indicates which MSI-X Table entry is * used to generate the interrupt message." */ - pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + pos = pci_pcie_cap(dev); pci_read_config_word(dev, pos + PCIE_CAPABILITIES_REG, ®16); entry = (reg16 >> 9) & PCIE_PORT_MSI_VECTOR_MASK; if (entry >= nr_entries) @@ -226,7 +226,7 @@ static int get_port_device_capability(struct pci_dev *dev) u16 reg16; u32 reg32; - pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + pos = pci_pcie_cap(dev); pci_read_config_word(dev, pos + PCIE_CAPABILITIES_REG, ®16); /* Hot-Plug Capable */ if (reg16 & PORT_TO_SLOT_MASK) { @@ -305,7 +305,8 @@ int pcie_port_device_probe(struct pci_dev *dev) int pos, type; u16 reg; - if (!(pos = pci_find_capability(dev, PCI_CAP_ID_EXP))) + pos = pci_pcie_cap(dev); + if (!pos) return -ENODEV; pci_read_config_word(dev, pos + PCIE_CAPABILITIES_REG, ®); @@ -327,7 +328,7 @@ int pcie_port_device_probe(struct pci_dev *dev) int pcie_port_device_register(struct pci_dev *dev) { struct pcie_port_data *port_data; - int status, capabilities, irq_mode, i, nr_serv; + int status, capabilities, irq_mode, i, nr_serv, pos; int vectors[PCIE_PORT_DEVICE_MAXSERVICES]; u16 reg16; @@ -337,9 +338,8 @@ int pcie_port_device_register(struct pci_dev *dev) pci_set_drvdata(dev, port_data); /* Get port type */ - pci_read_config_word(dev, - pci_find_capability(dev, PCI_CAP_ID_EXP) + - PCIE_CAPABILITIES_REG, ®16); + pos = pci_pcie_cap(dev); + pci_read_config_word(dev, pos + PCIE_CAPABILITIES_REG, ®16); port_data->port_type = (reg16 >> 4) & PORT_TYPE_MASK; capabilities = get_port_device_capability(dev); |