Isaku Yamahata
2009-Apr-10 08:57 UTC
[Xen-devel] [PATCH] linux/pci/reassign: fix alignment calculation
linux/pci/reassign: fix alignment calculation
Later r_align is incremented, so it must be decremented
as compensation.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -246,8 +246,9 @@ pdev_sort_resources(struct pci_dev *dev,
continue;
if (i < PCI_BRIDGE_RESOURCES && (r->flags & IORESOURCE_MEM)
&&
- reassigndev)
- r_align = ALIGN(r_align, PAGE_SIZE);
+ !r_align && reassigndev)
+ /* -1 is compensation for +1 in the following calc. */
+ r_align = ALIGN(r_align, PAGE_SIZE) - 1;
if (!r_align) {
printk(KERN_WARNING "PCI: Ignore bogus resource %d "
--
yamahata
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