On Tue, Nov 20, 2007 at 02:04:02AM +0000, Matthew Garrett wrote: > On Mon, Nov 19, 2007 at 03:32:25PM -0800, Gary Hade wrote: > > > Alex, What I was trying to suggest is a boot-time kernel option, > > not a kernel configuration option. The basic idea is to give > > the user (with a single binary kernel) the ability to include > > your ACPI-PCI slot driver feature changes only when they are > > really needed. In addition to reducing the number of > > system/PCI hotplug driver combinations where your changes > > would need to be validated, I believe would also help > > alleviate other worries (e.g. Andi Kleen's memory consumption > > concern). I believe this goal could also be achieved with the > > kernel config option by making the pci_slot module runtime > > loadable with the PCI hotplug drivers only visiting your new > > code when the pci_slot driver is loaded, although I think this > > would be more difficult to implement. > > If we're compiling something into the kernel, the default behaviour > should be for the functionality to be turned on unless the user > overrides it. It seems like others could have a problem with this but as long as there is a way to exclude the functionality in the event of problems without a kernel rebuild, "on" by default would work for me. Thanks, Gary -- Gary Hade System x Enablement IBM Linux Technology Center 503-578-4503 IBM T/L: 775-4503 garyhade@xxxxxxxxxx http://www.ibm.com/linux/ltc - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html