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xen-pciback: simplify determination of 64-bit memory resource 

Other than for raw BAR values, flags are properly separated in the
internal representation.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Jan Beulich 2016-07-06 00:58:19 -06:00 committed by David Vrabel
parent 6ad2655d87
commit c8670c22e0
1 changed files with 1 additions and 4 deletions
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5
drivers/xen/xen-pciback/conf_space_header.c
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@ -222,10 +222,7 @@ static void *bar_init(struct pci_dev *dev, int offset)
pos = PCI_ROM_RESOURCE;
else {
pos = (offset - PCI_BASE_ADDRESS_0) / 4;
if (pos && ((res[pos - 1].flags & (PCI_BASE_ADDRESS_SPACE |
PCI_BASE_ADDRESS_MEM_TYPE_MASK)) ==
(PCI_BASE_ADDRESS_SPACE_MEMORY |
PCI_BASE_ADDRESS_MEM_TYPE_64))) {
if (pos && (res[pos - 1].flags & IORESOURCE_MEM_64)) {
bar->val = res[pos - 1].start >> 32;
bar->len_val = -resource_size(&res[pos - 1]) >> 32;
return bar;