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powerpc/powernv: Add OPAL message notifier unregister function

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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
commit b921e90260
2 changed files with 9 additions and 0 deletions
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2
arch/powerpc/include/asm/opal.h
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@ -948,6 +948,8 @@ extern int opal_notifier_unregister(struct notifier_block *nb);
extern int opal_message_notifier_register(enum OpalMessageType msg_type,
struct notifier_block *nb);
extern int opal_message_notifier_unregister(enum OpalMessageType msg_type,
struct notifier_block *nb);
extern void opal_notifier_enable(void);
extern void opal_notifier_disable(void);
extern void opal_notifier_update_evt(uint64_t evt_mask, uint64_t evt_val);