[ewg] [PATCH]] ucma backport to 2.6.19

[Sean Hefty]

>Post a replacement to 2_misc_device_to_2_6_19.patch, we'll test.

I did not test this patch, but you can try replacing the contents of
the 2_misc_device_to_2_6_19.patch with the changes below.  (It's
possible that this may lead to some conflict further down in the patch
chain...)  The function prototype for show_abi_version changed between
2.6.20 to 2.6.19; this was the missing piece in the original backport
patch.  I would have expected a build warning for this.

Signed-off-by: Sean Hefty <sean.hefty at intel.com>

---
--- ofa_kernel-1.2/drivers/infiniband/core/ucma.c	2007-03-08 12:11:37.000000000 -0800
+++ b/drivers/infiniband/core/ucma.c	2007-03-08 12:13:13.000000000 -0800
@@ -847,13 +847,11 @@ static struct miscdevice ucma_misc = {
 	.fops	= &ucma_fops,
 };
 
-static ssize_t show_abi_version(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
+static ssize_t show_abi_version(struct class_device *class_dev, char *buf)
 {
 	return sprintf(buf, "%d\n", RDMA_USER_CM_ABI_VERSION);
 }
-static DEVICE_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
+static CLASS_DEVICE_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
 
 static int __init ucma_init(void)
 {
@@ -863,7 +861,8 @@ static int __init ucma_init(void)
 	if (ret)
 		return ret;
 
-	ret = device_create_file(ucma_misc.this_device, &dev_attr_abi_version);
+	ret = class_device_create_file(ucma_misc.class,
+				       &class_device_attr_abi_version);
 	if (ret) {
 		printk(KERN_ERR "rdma_ucm: couldn't create abi_version attr\n");
 		goto err;
@@ -876,7 +875,8 @@ err:
 
 static void __exit ucma_cleanup(void)
 {
-	device_remove_file(ucma_misc.this_device, &dev_attr_abi_version);
+	class_device_remove_file(ucma_misc.class,
+				 &class_device_attr_abi_version);
 	misc_deregister(&ucma_misc);
 	idr_destroy(&ctx_idr);
 }