diff options
| author | Kenji Kaneshige | 2009-11-11 06:30:56 +0100 |
|---|---|---|
| committer | Jesse Barnes | 2009-11-25 00:25:12 +0100 |
| commit | 06a1cbafb253c4c60d6a54a994887f5fbceabcc0 (patch) | |
| tree | e534c369ab1878a5d86996c29d629d1f5d8f9f75 | |
| parent | PCI: introduce pci_pcie_cap() (diff) | |
| download | kernel-qcow2-linux-06a1cbafb253c4c60d6a54a994887f5fbceabcc0.tar.gz kernel-qcow2-linux-06a1cbafb253c4c60d6a54a994887f5fbceabcc0.tar.xz kernel-qcow2-linux-06a1cbafb253c4c60d6a54a994887f5fbceabcc0.zip | |
PCI: use pci_pcie_cap() in pci core
Use pcie_cap() instead of pci_find_capability() to get PCIe capability
offset in PCI core code. This avoids unnecessary search in PCI
configuration space.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| -rw-r--r-- | drivers/pci/pci.c | 12 | ||||
| -rw-r--r-- | drivers/pci/probe.c | 4 |
2 files changed, 8 insertions, 8 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e3145f020271..bbc82f08d1c1 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -741,8 +741,8 @@ static int pci_save_pcie_state(struct pci_dev *dev) u16 *cap; u16 flags; - pos = pci_find_capability(dev, PCI_CAP_ID_EXP); - if (pos <= 0) + pos = pci_pcie_cap(dev); + if (!pos) return 0; save_state = pci_find_saved_cap(dev, PCI_CAP_ID_EXP); @@ -1535,7 +1535,7 @@ void pci_enable_ari(struct pci_dev *dev) if (!bridge || !bridge->is_pcie) return; - pos = pci_find_capability(bridge, PCI_CAP_ID_EXP); + pos = pci_pcie_cap(bridge); if (!pos) return; @@ -2140,7 +2140,7 @@ static int pcie_flr(struct pci_dev *dev, int probe) u32 cap; u16 status; - pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + pos = pci_pcie_cap(dev); if (!pos) return -ENOTTY; @@ -2489,7 +2489,7 @@ int pcie_get_readrq(struct pci_dev *dev) int ret, cap; u16 ctl; - cap = pci_find_capability(dev, PCI_CAP_ID_EXP); + cap = pci_pcie_cap(dev); if (!cap) return -EINVAL; @@ -2519,7 +2519,7 @@ int pcie_set_readrq(struct pci_dev *dev, int rq) v = (ffs(rq) - 8) << 12; - cap = pci_find_capability(dev, PCI_CAP_ID_EXP); + cap = pci_pcie_cap(dev); if (!cap) goto out; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 54b9f1501487..2fdffc02a308 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -703,7 +703,7 @@ static void set_pcie_hotplug_bridge(struct pci_dev *pdev) u16 reg16; u32 reg32; - pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); + pos = pci_pcie_cap(pdev); if (!pos) return; pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, ®16); @@ -920,7 +920,7 @@ int pci_cfg_space_size(struct pci_dev *dev) if (class == PCI_CLASS_BRIDGE_HOST) return pci_cfg_space_size_ext(dev); - pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + pos = pci_pcie_cap(dev); if (!pos) { pos = pci_find_capability(dev, PCI_CAP_ID_PCIX); if (!pos) |