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| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-06-06 12:10:47 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-06-06 14:33:27 -0600 |
| commit | a6bd73cdc93ec03781ff99beb5b465fd6ea3a784 (patch) | |
| tree | 86adb5f0cd269bcb0273b3611f8e323ec5c7fd78 /drivers/pci | |
| parent | 8b8d2b658f2cb7092672a56c72b41121ce786d93 (diff) | |
| download | linux-stable-a6bd73cdc93ec03781ff99beb5b465fd6ea3a784.tar.gz linux-stable-a6bd73cdc93ec03781ff99beb5b465fd6ea3a784.tar.bz2 linux-stable-a6bd73cdc93ec03781ff99beb5b465fd6ea3a784.zip | |
PCI/AER: Factor out HEST device type matching
This factors out the matching of HEST structure type and PCIe device type
to improve readability. No functional change.
Tested-by: Betty Dall <betty.dall@hp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_acpi.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c index 4f798ab629c8..e7ea5735a61f 100644 --- a/drivers/pci/pcie/aer/aerdrv_acpi.c +++ b/drivers/pci/pcie/aer/aerdrv_acpi.c @@ -29,6 +29,22 @@ static inline int hest_match_pci(struct acpi_hest_aer_common *p, p->function == PCI_FUNC(pci->devfn)); } +static inline bool hest_match_type(struct acpi_hest_header *hest_hdr, + struct pci_dev *dev) +{ + u16 hest_type = hest_hdr->type; + u8 pcie_type = pci_pcie_type(dev); + + if ((hest_type == ACPI_HEST_TYPE_AER_ROOT_PORT && + pcie_type == PCI_EXP_TYPE_ROOT_PORT) || + (hest_type == ACPI_HEST_TYPE_AER_ENDPOINT && + pcie_type == PCI_EXP_TYPE_ENDPOINT) || + (hest_type == ACPI_HEST_TYPE_AER_BRIDGE && + (dev->class >> 16) == PCI_BASE_CLASS_BRIDGE)) + return true; + return false; +} + struct aer_hest_parse_info { struct pci_dev *pci_dev; int firmware_first; @@ -38,28 +54,11 @@ static int aer_hest_parse(struct acpi_hest_header *hest_hdr, void *data) { struct aer_hest_parse_info *info = data; struct acpi_hest_aer_common *p; - u8 pcie_type = 0; - u8 bridge = 0; int ff = 0; - switch (hest_hdr->type) { - case ACPI_HEST_TYPE_AER_ROOT_PORT: - pcie_type = PCI_EXP_TYPE_ROOT_PORT; - break; - case ACPI_HEST_TYPE_AER_ENDPOINT: - pcie_type = PCI_EXP_TYPE_ENDPOINT; - break; - case ACPI_HEST_TYPE_AER_BRIDGE: - if ((info->pci_dev->class >> 16) == PCI_BASE_CLASS_BRIDGE) - bridge = 1; - break; - default: - return 0; - } - p = (struct acpi_hest_aer_common *)(hest_hdr + 1); if (p->flags & ACPI_HEST_GLOBAL) { - if ((pci_pcie_type(info->pci_dev) == pcie_type) || bridge) + if (hest_match_type(hest_hdr, info->pci_dev)) ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); } else if (hest_match_pci(p, info->pci_dev)) |