Re: [patch 6/8] PNP: replace pnp_resource_table with dynamically allocated resources

Andrew Morton
2008-05-14T02:43:52Z

On Mon, 05 May 2008 16:36:36 -0600 Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:

> PNP used to have a fixed-size pnp_resource_table for tracking the
> resources used by a device. This table often overflowed, so we've
> had to increase the table size, which wastes memory because most
> devices have very few resources.
>
> This patch replaces the table with a linked list of resources where
> the entries are allocated on demand.
>
> This removes messages like these:
>
> pnpacpi: exceeded the max number of IO resources
> 00:01: too many I/O port resources
>
> References:
>
> http://bugzilla.kernel.org/show_bug.cgi?id=9535
> http://bugzilla.kernel.org/show_bug.cgi?id=9740
> http://lkml.org/lkml/2007/11/30/110
>
> This patch also changes the way PNP uses the IORESOURCE_UNSET,
> IORESOURCE_AUTO, and IORESOURCE_DISABLED flags.

This patch kills my prehistoric dual PIII.