lspci: Indent PCIe Capability DevCap2 & DevCtl2 correctly

[pciutils.git] / lib / access.c

diff --git a/lib/access.c b/lib/access.c
index 17b8bed1230bce94c074d51e77977bfccc1d575d..d9911292f2e05efef8ede4144a494c73be316f86 100644 (file)
--- a/lib/access.c
+++ b/lib/access.c
@@ -40,6 +40,18 @@ pci_link_dev(struct pci_access *a, struct pci_dev *d)
   d->next = a->devices;
   a->devices = d;
 
+  /*
+   * Applications compiled with older versions of libpci do not expect
+   * 32-bit domain numbers. To keep them working, we keep a 16-bit
+   * version of the domain number at the previous location in struct
+   * pci_dev. This will keep backward compatibility on systems which
+   * don't require large domain numbers.
+   */
+  if (d->domain > 0xffff)
+    d->domain_16 = 0xffff;
+  else
+    d->domain_16 = d->domain;
+
   return 1;
 }