xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

powerpc/powernv: Add OPAL message notifier unregister function

Browse Source 
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 <neelegup@linux.vnet.ibm.com>
Reviewed-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Neelesh Gupta
2015-02-11 11:57:23 +05:30
committed by Benjamin Herrenschmidt
parent 792f96e9a7
commit b921e90260
2 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
arch/powerpc/platforms/powernv/opal.c
View File

@@ -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 */