pv-on-hvm: fixes for unmodified drivers build and modern Linux

- The adjustments to README and overrides.mk are generic.
- The removal of explicit linux/config.h inclusion should also not
  cause any issues.
- The introduction of irq_handler_t should eliminiate warnings on
  2.6.19+ kernels (I didn't check they're there, but since the
  request_irq prototype changed, I'm sure there's at least
  one. However, as a result changes to the Linux tree are expected to
  be required.
- The change setup_xen_features -> xen_setup_features follows the
  naming in mainline 2.6.23 but would apparently also require changes
  to the Linux tree.
- The changes SA_* -> IRQF_ and  pci_module_init ->
  pci_register_driver should also not cause issues.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c b/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
index e147f3d59a..7a512073d2 100644
--- a/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
+++ b/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
@@ -367,7 +367,11 @@ static int __init platform_pci_module_init(void)
 {
 	int rc;
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
 	rc = pci_module_init(&platform_driver);
+#else
+	rc = pci_register_driver(&platform_driver);
+#endif
 	if (rc) {
 		printk(KERN_INFO DRV_NAME
 		       ": No platform pci device model found\n");