Commit b30115ea authored Oct 27, 2008 by Benjamin Herrenschmidt Committed by Paul Mackerras Oct 31, 2008

powerpc/pci: Fix unmapping of IO space on 64-bit



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.  The third parameter to __flush_hash_table_range
is `end', not `size'.

This causes the hypervisor to refuse unplugging slots.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

parent e90a1318

arch/powerpc/kernel/pci_64.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -426,7 +426,7 @@ int pcibios_unmap_io_space(struct pci_bus *bus)
		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;
		}