diff options
| author | Frederick Lawler <fred@fredlawl.com> | 2018-03-23 00:20:55 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <helgaas@kernel.org> | 2018-03-31 01:26:59 +0300 |
| commit | f0553ba08a19031726f120448eedc3aff1599c23 (patch) | |
| tree | 201fa5b774ff6878712f8cad042f2cf459c3a79e /drivers/pci | |
| parent | d850882b726f6db01b0792151e72e69b234aa461 (diff) | |
| download | linux-f0553ba08a19031726f120448eedc3aff1599c23.tar.xz | |
PCI/AER: Use cached AER Capability offset
Replace pci_find_ext_capability(..., PCI_EXT_CAP_ID_ERR) calls with
pci_dev->aer_cap.
pci_dev->aer_cap is initialized in pci_init_capabilities(), which happens
before any of these users of the AER Capability.
Signed-off-by: Frederick Lawler <fred@fredlawl.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/aer/aer_inject.c | 4 | ||||
| -rw-r--r-- | drivers/pci/pcie/aer/ecrc.c | 4 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 14 |
3 files changed, 14 insertions, 8 deletions
diff --git a/drivers/pci/pcie/aer/aer_inject.c b/drivers/pci/pcie/aer/aer_inject.c index 25e1feb962c5..a49090935303 100644 --- a/drivers/pci/pcie/aer/aer_inject.c +++ b/drivers/pci/pcie/aer/aer_inject.c @@ -344,7 +344,7 @@ static int aer_inject(struct aer_error_inj *einj) goto out_put; } - pos_cap_err = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); + pos_cap_err = dev->aer_cap; if (!pos_cap_err) { pci_err(dev, "aer_inject: Device doesn't support AER\n"); ret = -EPROTONOSUPPORT; @@ -355,7 +355,7 @@ static int aer_inject(struct aer_error_inj *einj) pci_read_config_dword(dev, pos_cap_err + PCI_ERR_UNCOR_MASK, &uncor_mask); - rp_pos_cap_err = pci_find_ext_capability(rpdev, PCI_EXT_CAP_ID_ERR); + rp_pos_cap_err = rpdev->aer_cap; if (!rp_pos_cap_err) { pci_err(rpdev, "aer_inject: Root port doesn't support AER\n"); ret = -EPROTONOSUPPORT; diff --git a/drivers/pci/pcie/aer/ecrc.c b/drivers/pci/pcie/aer/ecrc.c index 26d3cac9e635..afb5f761f5d4 100644 --- a/drivers/pci/pcie/aer/ecrc.c +++ b/drivers/pci/pcie/aer/ecrc.c @@ -40,7 +40,7 @@ static int enable_ecrc_checking(struct pci_dev *dev) if (!pci_is_pcie(dev)) return -ENODEV; - pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); + pos = dev->aer_cap; if (!pos) return -ENODEV; @@ -68,7 +68,7 @@ static int disable_ecrc_checking(struct pci_dev *dev) if (!pci_is_pcie(dev)) return -ENODEV; - pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); + pos = dev->aer_cap; if (!pos) return -ENODEV; diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 6890aea4a550..099ef7ac615b 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -40,7 +40,7 @@ static void release_pcie_device(struct device *dev) static int pcie_message_numbers(struct pci_dev *dev, int mask, u32 *pme, u32 *aer, u32 *dpc) { - u32 nvec = 0, pos, reg32; + u32 nvec = 0, pos; u16 reg16; /* @@ -56,8 +56,11 @@ static int pcie_message_numbers(struct pci_dev *dev, int mask, nvec = *pme + 1; } +#ifdef CONFIG_PCIEAER if (mask & PCIE_PORT_SERVICE_AER) { - pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); + u32 reg32; + + pos = dev->aer_cap; if (pos) { pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, ®32); @@ -65,6 +68,7 @@ static int pcie_message_numbers(struct pci_dev *dev, int mask, nvec = max(nvec, *aer + 1); } } +#endif if (mask & PCIE_PORT_SERVICE_DPC) { pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_DPC); @@ -207,8 +211,9 @@ static int get_port_device_capability(struct pci_dev *dev) PCI_EXP_SLTCTL_CCIE | PCI_EXP_SLTCTL_HPIE); } - if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR) && - pci_aer_available() && (pcie_ports_native || host->native_aer)) { +#ifdef CONFIG_PCIEAER + if (dev->aer_cap && pci_aer_available() && + (pcie_ports_native || host->native_aer)) { services |= PCIE_PORT_SERVICE_AER; /* @@ -217,6 +222,7 @@ static int get_port_device_capability(struct pci_dev *dev) */ pci_disable_pcie_error_reporting(dev); } +#endif /* * Root ports are capable of generating PME too. Root Complex |