[PATCH libpciaccess] hurd: Clients or nested arbiters don't touch ioports

[Damien Zammit]

I tested this patch and linked it to both pci-arbiter.static
and rumpdisk.static, everything still works.

I/O ports are not needed at all by nested arbiters/clients of master
because we are not reserving them per device.

This design may need to change if we want to be more fine-grained
over i/o port access.

---
 src/hurd_pci.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/src/hurd_pci.c b/src/hurd_pci.c
index 2d10c5c..e7962a5 100644
--- a/src/hurd_pci.c
+++ b/src/hurd_pci.c
@@ -156,7 +156,6 @@ pci_system_hurd_destroy(void)
 {
     struct pci_system_hurd *pci_sys_hurd = (struct pci_system_hurd *)pci_sys;

-    x86_disable_io();
     mach_port_deallocate(mach_task_self(), pci_sys_hurd->root);
 }

@@ -600,14 +599,14 @@ static const struct pci_system_methods hurd_pci_methods = 
{
     .read = pci_device_hurd_read,
     .write = pci_device_hurd_write,
     .fill_capabilities = pci_fill_capabilities_generic,
-    .open_legacy_io = pci_device_x86_open_legacy_io,
-    .close_io = pci_device_x86_close_io,
-    .read32 = pci_device_x86_read32,
-    .read16 = pci_device_x86_read16,
-    .read8 = pci_device_x86_read8,
-    .write32 = pci_device_x86_write32,
-    .write16 = pci_device_x86_write16,
-    .write8 = pci_device_x86_write8,
+    .open_legacy_io = NULL,
+    .close_io = NULL,
+    .read32 = NULL,
+    .read16 = NULL,
+    .read8 = NULL,
+    .write32 = NULL,
+    .write16 = NULL,
+    .write8 = NULL,
     .map_legacy = pci_device_hurd_map_legacy,
     .unmap_legacy = pci_device_hurd_unmap_legacy,
 };
@@ -639,10 +638,9 @@ pci_system_hurd_create(void)
      */

     pci_sys_hurd = calloc(1, sizeof(struct pci_system_hurd));
-    if (pci_sys_hurd == NULL) {
-        x86_disable_io();
+    if (pci_sys_hurd == NULL)
         return ENOMEM;
-    }
+
     pci_sys = &pci_sys_hurd->system;

     pci_sys->methods = &hurd_pci_methods;
--
2.34.1