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| author | Betty Dall <betty.dall@hp.com> | 2013-12-13 08:23:16 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-12-13 14:40:09 -0700 |
| commit | 8e7f8d0b30d4e3e30007b10eb2916d970b5f8c93 (patch) | |
| tree | cc91e99f7633abf8c805542a23cc451946232d75 /drivers/pci/pcie | |
| parent | 1c38108a086f1cca3700765607059a6d865910c2 (diff) | |
| download | linux-8e7f8d0b30d4e3e30007b10eb2916d970b5f8c93.tar.gz | |
PCI/AER: Ignore non-PCIe AER error sources in aer_hest_parse()
aer_set_firmware_first() searches the HEST for an error source descriptor matching the specified PCI device. It uses the apei_hest_parse() iterator to call aer_hest_parse() for every descriptor in the HEST. Previously, aer_hest_parse() incorrectly assumed every descriptor was for a PCIe error source. This patch adds a check to avoid that error. [bhelgaas: factor check into helper, use in aer_hest_parse_aff(), changelog] Signed-off-by: Betty Dall <betty.dall@hp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_acpi.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c index cf611ab2193a..a23995749f1d 100644 --- a/drivers/pci/pcie/aer/aerdrv_acpi.c +++ b/drivers/pci/pcie/aer/aerdrv_acpi.c @@ -50,12 +50,24 @@ struct aer_hest_parse_info { int firmware_first; }; +static int hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr) +{ + if (hest_hdr->type == ACPI_HEST_TYPE_AER_ROOT_PORT || + hest_hdr->type == ACPI_HEST_TYPE_AER_ENDPOINT || + hest_hdr->type == ACPI_HEST_TYPE_AER_BRIDGE) + return 1; + return 0; +} + 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; int ff; + if (!hest_source_is_pcie_aer(hest_hdr)) + return 0; + p = (struct acpi_hest_aer_common *)(hest_hdr + 1); ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); if (p->flags & ACPI_HEST_GLOBAL) { @@ -104,15 +116,12 @@ static int aer_hest_parse_aff(struct acpi_hest_header *hest_hdr, void *data) if (aer_firmware_first) return 0; - switch (hest_hdr->type) { - case ACPI_HEST_TYPE_AER_ROOT_PORT: - case ACPI_HEST_TYPE_AER_ENDPOINT: - case ACPI_HEST_TYPE_AER_BRIDGE: - p = (struct acpi_hest_aer_common *)(hest_hdr + 1); - aer_firmware_first = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); - default: + if (!hest_source_is_pcie_aer(hest_hdr)) return 0; - } + + p = (struct acpi_hest_aer_common *)(hest_hdr + 1); + aer_firmware_first = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); + return 0; } /** |