Zero is a valid address in I/O space, so display it and it's associated
size when IO is enabled in the PCI command register.
>From arch/powerpc/kernel/pci-common.c:
/* Here, we are a bit different than memory as typically IO space
* starting at low addresses -is- valid. What we do instead [is] that
* we consider as unassigned anything that doesn't have IO enabled
* in the PCI command register, and that's it.
*/
Signed-off-by: Aaron Sierra <asierra@xxxxxxxxxxx>
---
lib/sysfs.c | 2 +-
lspci.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/sysfs.c b/lib/sysfs.c
index 1ec4afb..2197fab 100644
--- a/lib/sysfs.c
+++ b/lib/sysfs.c
@@ -125,7 +125,7 @@ sysfs_get_resources(struct pci_dev *d)
break;
if (sscanf(buf, "%llx %llx %llx", &start, &end, &flags) != 3)
a->error("Syntax error in %s", namebuf);
- if (start)
+ if (end > start)
size = end - start + 1;
else
size = 0;
diff --git a/lspci.c b/lspci.c
index 681ef6a..a67a516 100644
--- a/lspci.c
+++ b/lspci.c
@@ -372,7 +372,7 @@ show_bases(struct device *d, int cnt)
{
pciaddr_t a = pos & PCI_BASE_ADDRESS_IO_MASK;
printf("I/O ports at ");
- if (a)
+ if (a || (cmd & PCI_COMMAND_IO))
printf(PCIADDR_PORT_FMT, a);
else if (flg & PCI_BASE_ADDRESS_IO_MASK)
printf("<ignored>");
--
1.7.0.4
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