Commit c8670c22 authored by Jan Beulich's avatar Jan Beulich Committed by David Vrabel
Browse files

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: default avatarJan Beulich <jbeulich@suse.com>
Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
parent 6ad2655d

drivers/xen/xen-pciback/conf_space_header.c

+1 −4
Original line number Diff line number Diff line
@@ -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;

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