mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-28 13:22:57 +00:00
Code Issues Releases Wiki Activity

PCI/AER: Honor "pcie_ports=native" even if HEST sets FIRMWARE_FIRST

Browse source 
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 <mr.nuke.me@gmail.com>
[bhelgaas: return "false" from bool function (from kbuild robot)]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Alexandru Gagniuc 2018-07-03 18:27:43 -05:00 committed by Bjorn Helgaas
parent 12833017e5
commit 7af02fcd84
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/pci/pcie/aer.c
View file

@ -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;