firmware: arm_sdei: Remove _sdei_event_unregister()

_sdei_event_unregister() is called by sdei_event_unregister() and
sdei_device_freeze(). _sdei_event_unregister() covers the shared
and private events, but sdei_device_freeze() only covers the shared
events. So the logic to cover the private events isn't needed by
sdei_device_freeze().

   sdei_event_unregister        sdei_device_freeze
      _sdei_event_unregister       sdei_unregister_shared
                                     _sdei_event_unregister

This removes _sdei_event_unregister(). Its logic is moved to its
callers accordingly. This shouldn't cause any logical changes.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20200922130423.10173-14-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c
index 361d142..840754d 100644 (file)
--- a/drivers/firmware/arm_sdei.c
+++ b/drivers/firmware/arm_sdei.c
@@ -487,16 +487,6 @@ static void _local_event_unregister(void *data)
        sdei_cross_call_return(arg, err);
 }
 
-static int _sdei_event_unregister(struct sdei_event *event)
-{
-       lockdep_assert_held(&sdei_events_lock);
-
-       if (event->type == SDEI_EVENT_TYPE_SHARED)
-               return sdei_api_event_unregister(event->event_num);
-
-       return sdei_do_cross_call(_local_event_unregister, event);
-}
-
 int sdei_event_unregister(u32 event_num)
 {
        int err;
@@ -517,7 +507,11 @@ int sdei_event_unregister(u32 event_num)
        event->reenable = false;
        spin_unlock(&sdei_list_lock);
 
-       err = _sdei_event_unregister(event);
+       if (event->type == SDEI_EVENT_TYPE_SHARED)
+               err = sdei_api_event_unregister(event->event_num);
+       else
+               err = sdei_do_cross_call(_local_event_unregister, event);
+
        if (err)
                goto unlock;
 
@@ -543,7 +537,7 @@ static int sdei_unregister_shared(void)
                if (event->type != SDEI_EVENT_TYPE_SHARED)
                        continue;
 
-               err = _sdei_event_unregister(event);
+               err = sdei_api_event_unregister(event->event_num);
                if (err)
                        break;
        }