From b921e90260cec1e04988bb3763491de885b67b51 Mon Sep 17 00:00:00 2001 From: Neelesh Gupta Date: Wed, 11 Feb 2015 11:57:23 +0530 Subject: powerpc/powernv: Add OPAL message notifier unregister function Provide an unregister interface for the opal message notifiers to be called when not needed like during driver unload/remove. Signed-off-by: Neelesh Gupta Reviewed-by: Vasant Hegde Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/powernv/opal.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/powerpc/platforms/powernv/opal.c') 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 */ -- cgit v1.2.3