I followed these instructions in the VM I just updated from Ubuntu 64-bit 12.10 to 13.04, and they worked for me! The modules compiled successfully, and shared folders now work.
Before doing so, however, I too examined the source code differences, which are relatively minor and appear to be safe:
myk@ubuntu:~/Downloads$ diff -ur foo bar
diff -ur foo/vmci-only/linux/driver.c bar/vmci-only/linux/driver.c
--- foo/vmci-only/linux/driver.c 2012-10-31 16:59:58.000000000 -0700
+++ bar/vmci-only/linux/driver.c 2013-05-29 23:30:55.000000000 -0700
@@ -124,7 +124,8 @@ .name = "vmci", .id_table = vmci_ids, .probe = vmci_probe_device,
- .remove = __devexit_p(vmci_remove_device),
+// .remove = __devexit_p(vmci_remove_device),
+ .remove = vmci_remove_device,
};
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
@@ -1750,7 +1751,7 @@ *----------------------------------------------------------------------------- */
-static int __devinit
+static int
vmci_probe_device(struct pci_dev *pdev, // IN: vmci PCI device const struct pci_device_id *id) // IN: matching device ID
{
@@ -1978,7 +1979,7 @@ *----------------------------------------------------------------------------- */
-static void __devexit
+static void
vmci_remove_device(struct pci_dev* pdev)
{ struct vmci_device *dev = pci_get_drvdata(pdev);
diff -ur foo/vmhgfs-only/inode.c bar/vmhgfs-only/inode.c
--- foo/vmhgfs-only/inode.c 2012-10-31 16:58:29.000000000 -0700
+++ bar/vmhgfs-only/inode.c 2013-05-30 00:00:53.000000000 -0700
@@ -50,6 +50,18 @@
#include "fsutil.h"
#include "vm_assert.h"
+ int vmtruncate(struct inode *inode, loff_t newsize)
+ {
+ int error;
+ error = inode_newsize_ok(inode, newsize);
+
+ if (error)
+ return error;
+ truncate_setsize(inode, newsize);
+ truncate_pagecache(inode, newsize, inode->i_size);
+ return 0;
+ }
+
/* Private functions. */
static int HgfsDelete(struct inode *dir, struct dentry *dentry,
-myk