Hi Jesse, On Tuesday, December 13, 2011, Rafael J. Wysocki 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> > --- Sorry for the breakage, I clearly should have been more careful here. Please also revert this commit from your linux-next branch: http://git.kernel.org/?p=linux/kernel/git/jbarnes/pci.git;a=commit;h=71c50ab7a32968b73b533dd27620eef563ace6b7 as it makes the same mistake and depends on the code being removed by this patch. Thanks, 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
