On Fri, Aug 18, 2023 at 7:15 AM Mario Limonciello <mario.limonciello@xxxxxxx> wrote: > > Intel systems that need to have PCIe ports in D3 for low power idle > specify this by constraints on the ACPI PNP0D80 device. As this information > is queried, limit the DMI BIOS year check to stop at 2024. This will > allow future systems to rely on the constraints check to set up policy > like non-Intel systems do. > > Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx> > --- > v12->v13: > * New patch > --- > drivers/pci/pci.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c > index 0fc8d35154f97..5b9e11e254f34 100644 > --- a/drivers/pci/pci.c > +++ b/drivers/pci/pci.c > @@ -3049,10 +3049,11 @@ bool pci_bridge_d3_possible(struct pci_dev *bridge) > return true; > > /* > - * It is safe to put Intel PCIe ports from 2015 or newer > + * It is safe to put Intel PCIe ports from 2015 to 2024 > * to D3. > */ > if (bridge->vendor == PCI_VENDOR_ID_INTEL && > + dmi_get_bios_year() <= 2024 && > dmi_get_bios_year() >= 2015) A minor nit: The above would be somewhat easier to follow if it is written in a reverse order, that is dmi_get_bios_year() >= 2015 && dmi_get_bios_year() <= 2024 and maybe call dmi_get_bios_year() once to avoid the redundant string parsing? > return true; > break; > --
