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Diffstat (limited to 'arch/powerpc/platforms/powernv/opal.c')
-rw-r--r--arch/powerpc/platforms/powernv/opal.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index b0021ac3e0a8..8b3834a095f7 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -318,6 +318,13 @@ int opal_message_notifier_register(enum OpalMessageType msg_type,
&opal_msg_notifier_head[msg_type], nb);
}
+int opal_message_notifier_unregister(enum OpalMessageType msg_type,
+ struct notifier_block *nb)
+{
+ return atomic_notifier_chain_unregister(
+ &opal_msg_notifier_head[msg_type], nb);
+}
+
static void opal_message_do_notify(uint32_t msg_type, void *msg)
{
/* notify subscribers */