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authorMark Brown <broonie@kernel.org>2017-11-28 16:19:52 +0000
committerMark Brown <broonie@kernel.org>2017-11-28 16:19:52 +0000
commit69830d3909849dee33b9a2de88ece3d59c75a1b8 (patch)
tree67e22ac989e782ddc104f186dee54d1675e76923 /kernel/livepatch/core.h
parentASoC: rk3399_gru_sound: Map BTN_0 to KEY_PLAYPAUSE (diff)
parentASoC: add snd_soc_disconnect_sync() (diff)
downloadlinux-dev-69830d3909849dee33b9a2de88ece3d59c75a1b8.tar.xz
linux-dev-69830d3909849dee33b9a2de88ece3d59c75a1b8.zip
Merge branch 'topic/disconnect' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-rcar
Diffstat (limited to 'kernel/livepatch/core.h')
-rw-r--r--kernel/livepatch/core.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/kernel/livepatch/core.h b/kernel/livepatch/core.h
index a351601d7f76..48a83d4364cf 100644
--- a/kernel/livepatch/core.h
+++ b/kernel/livepatch/core.h
@@ -2,6 +2,46 @@
#ifndef _LIVEPATCH_CORE_H
#define _LIVEPATCH_CORE_H
+#include <linux/livepatch.h>
+
extern struct mutex klp_mutex;
+static inline bool klp_is_object_loaded(struct klp_object *obj)
+{
+ return !obj->name || obj->mod;
+}
+
+static inline int klp_pre_patch_callback(struct klp_object *obj)
+{
+ int ret = 0;
+
+ if (obj->callbacks.pre_patch)
+ ret = (*obj->callbacks.pre_patch)(obj);
+
+ obj->callbacks.post_unpatch_enabled = !ret;
+
+ return ret;
+}
+
+static inline void klp_post_patch_callback(struct klp_object *obj)
+{
+ if (obj->callbacks.post_patch)
+ (*obj->callbacks.post_patch)(obj);
+}
+
+static inline void klp_pre_unpatch_callback(struct klp_object *obj)
+{
+ if (obj->callbacks.pre_unpatch)
+ (*obj->callbacks.pre_unpatch)(obj);
+}
+
+static inline void klp_post_unpatch_callback(struct klp_object *obj)
+{
+ if (obj->callbacks.post_unpatch_enabled &&
+ obj->callbacks.post_unpatch)
+ (*obj->callbacks.post_unpatch)(obj);
+
+ obj->callbacks.post_unpatch_enabled = false;
+}
+
#endif /* _LIVEPATCH_CORE_H */