Fix oinkmaster patch.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.39 / patches.arch / ppc-powerpc-fix-pci-unmap-io.patch

Subject: powerpc/pci: Fix unmapping of IO space on 64-bit
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
References: 439491

A typo/thinko made us pass the wrong argument to __flush_hash_table_range
when unplugging bridges, thus not flushing all the translations for
the IO space on unplug.

This causes the hypervisor to refuse unplugging slots.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Olaf Hering <olh@suse.de>

---
 arch/powerpc/kernel/pci_64.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -455,7 +455,7 @@ int pcibios_unmap_io_space(struct pci_bu
 		    pci_name(bus->self));
 
 		__flush_hash_table_range(&init_mm, res->start + _IO_BASE,
-					 res->end - res->start + 1);
+					 res->end + _IO_BASE + 1);
 		return 0;
 	}