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authorLinus Torvalds <torvalds@linux-foundation.org>2008-09-04 01:33:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-09-04 01:33:59 -0700
commit5f17cfce5776c566d64430f543a289e5cfa4538b (patch)
treef5da29c42ce3b29a35791d9192fbcbe0fb737f30 /drivers/pci
parentde014d617636d6a6bd5aef3b3d1f7f9a35669057 (diff)
PCI: fix pbus_size_mem() resource alignment for CardBus controllers
Commit 884525655d07fdee9245716b998ecdc45cdd8007 ("PCI: clean up resource alignment management") changed the resource handling to mark how a resource was aligned on a per-resource basis. Thus, instead of looking at the resource number to determine whether it was a bridge resource or a regular resource (they have different alignment rules), we should just ask the resource for its alignment directly. The reason this broke only cardbus resources was that for the other types of resources, the old way of deciding alignment actually still happened to work. But CardBus bridge resources had been changed by commit 934b7024f0ed29003c95cef447d92737ab86dc4f ("Fix cardbus resource allocation") to look more like regular resources than PCI bridge resources from an alignment handling standpoint. Reported-and-tested-by: Andrew Morton <akpm@linux-foundation.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/setup-bus.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 82634a2f1b1..1aad599816f 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -352,11 +352,12 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long
continue;
r_size = r->end - r->start + 1;
/* For bridges size != alignment */
- align = (i < PCI_BRIDGE_RESOURCES) ? r_size : r->start;
+ align = resource_alignment(r);
order = __ffs(align) - 20;
if (order > 11) {
- dev_warn(&dev->dev, "BAR %d too large: "
+ dev_warn(&dev->dev, "BAR %d bad alignment %llx: "
"%#016llx-%#016llx\n", i,
+ (unsigned long long)align,
(unsigned long long)r->start,
(unsigned long long)r->end);
r->flags = 0;