dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

powerpc/pci: Make pcibios_allocate_bus_resources more robust 

To properly fix PCI hotplug, it's useful to be able to make the fixup
passes on all devices whether they were just hot plugged or already
there.

However, pcibios_allocate_bus_resources() wouldn't cope well with
being called twice for a given bus.  This makes it ignore resources
that have already been allocated, along with adding a bit of debug
output.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt 2008-10-27 19:48:44 +00:00 committed by Paul Mackerras
parent 57b066ff4e
commit b5ae5f911d
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/powerpc/kernel/pci-common.c
View File

@ -1243,9 +1243,12 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus)
int i;
struct resource *res, *pr;
pr_debug("PCI: Allocating bus resources for %04x:%02x...\n",
pci_domain_nr(bus), bus->number);
for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
if ((res = bus->resource[i]) == NULL || !res->flags
|| res->start > res->end)
|| res->start > res->end || res->parent)
continue;
if (bus->parent == NULL)
pr = (res->flags & IORESOURCE_IO) ?