On Tuesday, December 13, 2011, Jesse Barnes wrote: > On Tue, 13 Dec 2011 00:02:28 +0100 > "Rafael J. Wysocki" <rjw@xxxxxxx> wrote: > > > From: Rafael J. Wysocki <rjw@xxxxxxx> > > > > Commit 0d52f54e2ef64c189dedc332e680b2eb4a34590a (PCI / ACPI: Make > > acpiphp ignore root bridges using PCIe native hotplug) added code > > that made the acpiphp driver completely ignore PCIe root complexes > > for which the kernel had been granted control of the native PCIe > > hotplug feature by the BIOS through _OSC. Unfortunately, however, > > this was a mistake, because on some systems there were PCI bridges > > supporting PCI (non-PCIe) hotplug under such root complexes and > > those bridges should have been handled by acpiphp. > > > > For this reason, revert the changes made by the commit mentioned > > above and make register_slot() in drivers/pci/hotplug/acpiphp_glue.c > > avoid registering hotplug slots for PCIe ports that belong to > > root complexes with native PCIe hotplug enabled (which means that > > the BIOS has granted the kernel control of this feature for the > > given root complex). This is reported to address the original > > issue fixed by commit 0d52f54e2ef64c189dedc332e680b2eb4a34590a and > > to work on the system where that commit broke things. > > > > Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx> > > --- > > Applied to my for-linus branch. I'll probably send to Linus on Thu. or > so. > > I also rebased the breakage out of linux-next. Thanks a lot! Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
