linux-kernel - [RFC kgr on klp 3/9] livepatch: add klp_*_to

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Date:	Mon,  4 May 2015 13:40:19 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	live-patching@...r.kernel.org
Cc:	jpoimboe@...hat.com, sjenning@...hat.com, jkosina@...e.cz,
	vojtech@...e.cz, mingo@...hat.com, linux-kernel@...r.kernel.org,
	Jiri Slaby <jslaby@...e.cz>
Subject: [RFC kgr on klp 3/9] livepatch: add klp_*_to_patch helpers

This will be used in the kGraft-like patching.

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 include/linux/livepatch.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h
index 31db7a05dd36..fabb067a3f1d 100644
--- a/include/linux/livepatch.h
+++ b/include/linux/livepatch.h
@@ -129,6 +129,16 @@ struct klp_patch {
 #define klp_for_each_func(obj, func) \
 	for (func = obj->funcs; func->old_name; func++)
 
+static inline struct klp_patch *klp_func_to_patch(struct klp_func *func)
+{
+	return container_of(func->kobj.parent->parent, struct klp_patch, kobj);
+}
+
+static inline struct klp_patch *klp_object_to_patch(struct klp_object *obj)
+{
+	return container_of(obj->kobj.parent, struct klp_patch, kobj);
+}
+
 int klp_register_patch(struct klp_patch *);
 int klp_unregister_patch(struct klp_patch *);
 int klp_enable_patch(struct klp_patch *);
-- 
2.3.5

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