driver core: Convert some drivers to CLASS_ATTR_STRING
Convert some drivers who export a single string as class attribute
to the new class_attr_string functions. This removes redundant
code all over.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 6087939..d805cf3 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -691,13 +691,8 @@
}
static DEVICE_ATTR(abi_version, S_IRUGO, show_dev_abi_version, NULL);
-static ssize_t show_abi_version(struct class *class,
- struct class_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "%d\n", IB_USER_VERBS_ABI_VERSION);
-}
-static CLASS_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
+static CLASS_ATTR_STRING(abi_version, S_IRUGO,
+ __stringify(IB_USER_VERBS_ABI_VERSION));
static dev_t overflow_maj;
static DECLARE_BITMAP(overflow_map, IB_UVERBS_MAX_DEVICES);
@@ -843,7 +838,7 @@
goto out_chrdev;
}
- ret = class_create_file(uverbs_class, &class_attr_abi_version);
+ ret = class_create_file(uverbs_class, &class_attr_abi_version.attr);
if (ret) {
printk(KERN_ERR "user_verbs: couldn't create abi_version attribute\n");
goto out_class;
