[Xen-devel] [PATCH v4 4/7] xen-pciback: simplify determination of 64-bit memory resource

["Jan Beulich" <JBeulich@xxxxxxxx>]

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

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

---
 drivers/xen/xen-pciback/conf_space_header.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- 4.7-rc6-xen-pciback.orig/drivers/xen/xen-pciback/conf_space_header.c
+++ 4.7-rc6-xen-pciback/drivers/xen/xen-pciback/conf_space_header.c
@@ -222,10 +222,7 @@ static void *bar_init(struct pci_dev *de
                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;




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