x86/PCI: remove 64-bit division

The roundup() caused a build error (undefined reference to `__udivdi3').
We're aligning to power-of-two boundaries, so it's simpler to just use
ALIGN() anyway, which avoids the division.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 8ddf4f4c7253..959e548a7039 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -69,17 +69,17 @@ align_resource(struct acpi_device *bridge, struct resource *res)
          * that claim this address space have starting alignment and length
          * constraints, so fix any obvious BIOS goofs.
          */
-        if (res->start & (align - 1)) {
+        if (!IS_ALIGNED(res->start, align)) {
                 dev_printk(KERN_DEBUG, &bridge->dev,
                            "host bridge window %pR invalid; "
                            "aligning start to %d-byte boundary\n", res, align);
                 res->start &= ~(align - 1);
         }
-        if ((res->end + 1) & (align - 1)) {
+        if (!IS_ALIGNED(res->end + 1, align)) {
                 dev_printk(KERN_DEBUG, &bridge->dev,
                            "host bridge window %pR invalid; "
                            "aligning end to %d-byte boundary\n", res, align);
-                res->end = roundup(res->end, align) - 1;
+                res->end = ALIGN(res->end, align) - 1;
         }
 }