When converting to use the new pci_add_resource_offset() we didn't
properly account for empty resources (0 flags) and add those bogons
to the PHBs. The result is some annoying messages in the log.
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
---
BTW. Anybody knows if we really need those ppc32 workarounds anymore ?
They smell like ancient pre-device-tree crap... if a bridge is missing
a window in its "ranges" property it should probably not have it exposed
to the generic code nowadays.
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index f325dc9..5775ea9 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1532,12 +1532,16 @@ static void pcibios_setup_phb_resources(struct
pci_controller *hose,
res->flags = IORESOURCE_IO;
#endif /* CONFIG_PPC32 */
}
+ if (res->flags) {
+ pr_debug("PCI: PHB IO resource = %016llx-%016llx [%lx]\n",
+ (unsigned long long)res->start,
+ (unsigned long long)res->end,
+ (unsigned long)res->flags);
+ pci_add_resource_offset(resources, res,
pcibios_io_space_offset(hose));
- pr_debug("PCI: PHB IO resource = %016llx-%016llx [%lx]\n",
- (unsigned long long)res->start,
- (unsigned long long)res->end,
- (unsigned long)res->flags);
- pci_add_resource_offset(resources, res, pcibios_io_space_offset(hose));
+ pr_debug("PCI: PHB IO offset = %08lx\n",
+ (unsigned long)hose->io_base_virt - _IO_BASE);
+ }
/* Hookup PHB Memory resources */
for (i = 0; i < 3; ++i) {
@@ -1555,19 +1559,17 @@ static void pcibios_setup_phb_resources(struct
pci_controller *hose,
res->flags = IORESOURCE_MEM;
#endif /* CONFIG_PPC32 */
}
-
- pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n",
i,
- (unsigned long long)res->start,
- (unsigned long long)res->end,
- (unsigned long)res->flags);
- pci_add_resource_offset(resources, res, hose->pci_mem_offset);
+ if (res->flags) {
+ pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx
[%lx]\n", i,
+ (unsigned long long)res->start,
+ (unsigned long long)res->end,
+ (unsigned long)res->flags);
+ pci_add_resource_offset(resources, res,
hose->pci_mem_offset);
+ }
}
pr_debug("PCI: PHB MEM offset = %016llx\n",
(unsigned long long)hose->pci_mem_offset);
- pr_debug("PCI: PHB IO offset = %08lx\n",
- (unsigned long)hose->io_base_virt - _IO_BASE);
-
}
/*
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