From: Alexandru Gagniuc Date: Tue, 3 Jul 2018 23:27:43 +0000 (-0500) Subject: PCI/AER: Honor "pcie_ports=native" even if HEST sets FIRMWARE_FIRST X-Git-Tag: v4.19-rc1~123^2~20^2~9 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=7af02fcd84c16801958936f88b848944c726ca07;p=linux.git PCI/AER: Honor "pcie_ports=native" even if HEST sets FIRMWARE_FIRST According to the documentation, "pcie_ports=native", linux should use native AER and DPC services. While that is true for the _OSC method parsing, this is not the only place that is checked. Should the HEST list PCIe ports as firmware-first, linux will not use native services. This happens because aer_acpi_firmware_first() doesn't take 'pcie_ports' into account. This is wrong. DPC uses the same logic when it decides whether to load or not, so fixing this also fixes DPC not loading. Signed-off-by: Alexandru Gagniuc [bhelgaas: return "false" from bool function (from kbuild robot)] Signed-off-by: Bjorn Helgaas --- diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index 47c67de1ccf1..766687094706 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -322,6 +322,9 @@ int pcie_aer_get_firmware_first(struct pci_dev *dev) if (!pci_is_pcie(dev)) return 0; + if (pcie_ports_native) + return 0; + if (!dev->__aer_firmware_first_valid) aer_set_firmware_first(dev); return dev->__aer_firmware_first; @@ -342,6 +345,9 @@ bool aer_acpi_firmware_first(void) .firmware_first = 0, }; + if (pcie_ports_native) + return false; + if (!parsed) { apei_hest_parse(aer_hest_parse, &info); aer_firmware_first = info.firmware_first;