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authorBjorn Helgaas <bjorn.helgaas@hp.com>2010-03-25 09:28:24 -0600
committerJesse Barnes <jbarnes@virtuousgeek.org>2010-03-25 10:14:07 -0700
commiteb9fc8ef7cb1362374e55d9503e3e7458f319991 (patch)
treee5618d1b18fec1a90234ff3c56aeb911f2891a4a /arch/x86/pci
parent99f4692e13ba22b228bdd155473f24ae9bdec1dc (diff)
x86/PCI: for host bridge address space collisions, show conflicting resource
With insert_resource_conflict(), we can learn what the actual conflict is, so print that info for debugging purposes. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/acpi.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 6e22454bfaa..75ac3f856ea 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -122,7 +122,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
struct acpi_resource_address64 addr;
acpi_status status;
unsigned long flags;
- struct resource *root;
+ struct resource *root, *conflict;
u64 start, end;
status = resource_to_addr(acpi_res, &addr);
@@ -157,9 +157,12 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
return AE_OK;
}
- if (insert_resource(root, res)) {
+ conflict = insert_resource_conflict(root, res);
+ if (conflict) {
dev_err(&info->bridge->dev,
- "can't allocate host bridge window %pR\n", res);
+ "address space collision: host bridge window %pR "
+ "conflicts with %s %pR\n",
+ res, conflict->name, conflict);
} else {
pci_bus_add_resource(info->bus, res, 0);
info->res_num++;