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From: Yinghai on 13 Apr 2010 17:30


If a host bridge window falls inside a region the architecture has
marked busy, the window should inherit the busy flag so we don't
try to assign that region to a device.

[commit log is from Bjorn]

Tested-by: Andy Isaacson <adi(a)hexapodia.org>
Cc: Bjorn Helgaas <bjorn.helgaas(a)hp.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas(a)hp.com>
Signed-off-by: Yinghai Lu <yinghai(a)kernel.org>

---
arch/x86/pci/acpi.c | 4 ++++
1 file changed, 4 insertions(+)

Index: linux-2.6/arch/x86/pci/acpi.c
===================================================================
--- linux-2.6.orig/arch/x86/pci/acpi.c
+++ linux-2.6/arch/x86/pci/acpi.c
@@ -175,6 +175,10 @@ setup_resource(struct acpi_resource *acp
"conflicts with %s %pR\n",
res, conflict->name, conflict);
} else {
+ /* In case it falls in big reserved region */
+ if (res->parent->flags & IORESOURCE_BUSY)
+ res->flags |= IORESOURCE_BUSY;
+
pci_bus_add_resource(info->bus, res, 0);
info->res_num++;
if (addr.translation_offset)
--
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