module: change attr callbacks to take struct module_kobject

This simplifies the next patch, where we have an attribute on a
builtin module (ie. module == NULL).

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (split into 2)
diff --git a/kernel/params.c b/kernel/params.c
index 2a4ba25..37e9b20 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -511,7 +511,7 @@
 #define to_param_attr(n) container_of(n, struct param_attribute, mattr)
 
 static ssize_t param_attr_show(struct module_attribute *mattr,
-			       struct module *mod, char *buf)
+			       struct module_kobject *mk, char *buf)
 {
 	int count;
 	struct param_attribute *attribute = to_param_attr(mattr);
@@ -531,7 +531,7 @@
 
 /* sysfs always hands a nul-terminated string in buf.  We rely on that. */
 static ssize_t param_attr_store(struct module_attribute *mattr,
-				struct module *owner,
+				struct module_kobject *km,
 				const char *buf, size_t len)
 {
  	int err;
@@ -807,7 +807,7 @@
 }
 
 ssize_t __modver_version_show(struct module_attribute *mattr,
-			      struct module *mod, char *buf)
+			      struct module_kobject *mk, char *buf)
 {
 	struct module_version_attribute *vattr =
 		container_of(mattr, struct module_version_attribute, mattr);
@@ -852,7 +852,7 @@
 	if (!attribute->show)
 		return -EIO;
 
-	ret = attribute->show(attribute, mk->mod, buf);
+	ret = attribute->show(attribute, mk, buf);
 
 	return ret;
 }
@@ -871,7 +871,7 @@
 	if (!attribute->store)
 		return -EIO;
 
-	ret = attribute->store(attribute, mk->mod, buf, len);
+	ret = attribute->store(attribute, mk, buf, len);
 
 	return ret;
 }